/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=0.4 --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_product23.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 13:11:13,396 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 13:11:13,400 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 13:11:13,446 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 13:11:13,446 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 13:11:13,454 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 13:11:13,456 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 13:11:13,460 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 13:11:13,463 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 13:11:13,466 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 13:11:13,467 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 13:11:13,468 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 13:11:13,469 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 13:11:13,471 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 13:11:13,474 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 13:11:13,476 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 13:11:13,478 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 13:11:13,479 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 13:11:13,481 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 13:11:13,489 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 13:11:13,492 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 13:11:13,494 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 13:11:13,495 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 13:11:13,496 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 13:11:13,508 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 13:11:13,509 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 13:11:13,509 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 13:11:13,516 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 13:11:13,517 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 13:11:13,518 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 13:11:13,518 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 13:11:13,521 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 13:11:13,522 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 13:11:13,523 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 13:11:13,527 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 13:11:13,528 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 13:11:13,529 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 13:11:13,529 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 13:11:13,529 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 13:11:13,530 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 13:11:13,531 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 13:11:13,533 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 13:11:13,575 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 13:11:13,575 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 13:11:13,578 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 13:11:13,578 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 13:11:13,578 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 13:11:13,578 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 13:11:13,579 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 13:11:13,579 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 13:11:13,579 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 13:11:13,579 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 13:11:13,580 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 13:11:13,580 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 13:11:13,581 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 13:11:13,581 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 13:11:13,581 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 13:11:13,582 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 13:11:13,582 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 13:11:13,582 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 13:11:13,582 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 13:11:13,582 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 13:11:13,583 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 13:11:13,583 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 13:11:13,583 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 13:11:13,583 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 13:11:13,583 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 13:11:13,584 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 13:11:13,584 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 13:11:13,584 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 13:11:13,584 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 13:11:13,584 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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;log-additional-information=true;
[2020-09-25 13:11:14,049 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 13:11:14,067 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 13:11:14,072 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 13:11:14,074 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 13:11:14,074 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 13:11:14,075 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product23.cil.c
[2020-09-25 13:11:14,173 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ab1a54299/05253f1f6c774e4684c068a435461cce/FLAGa23388964
[2020-09-25 13:11:14,810 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 13:11:14,811 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product23.cil.c
[2020-09-25 13:11:14,827 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ab1a54299/05253f1f6c774e4684c068a435461cce/FLAGa23388964
[2020-09-25 13:11:15,103 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ab1a54299/05253f1f6c774e4684c068a435461cce
[2020-09-25 13:11:15,117 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 13:11:15,123 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 13:11:15,125 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 13:11:15,125 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 13:11:15,129 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 13:11:15,131 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:11:15" (1/1) ...
[2020-09-25 13:11:15,135 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a1e51c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:15, skipping insertion in model container
[2020-09-25 13:11:15,135 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:11:15" (1/1) ...
[2020-09-25 13:11:15,144 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 13:11:15,199 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 13:11:15,699 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 13:11:15,718 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 13:11:15,833 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 13:11:15,874 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 13:11:15,874 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:15 WrapperNode
[2020-09-25 13:11:15,874 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 13:11:15,875 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 13:11:15,875 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 13:11:15,876 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 13:11:15,893 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:15" (1/1) ...
[2020-09-25 13:11:15,893 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:15" (1/1) ...
[2020-09-25 13:11:15,914 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:15" (1/1) ...
[2020-09-25 13:11:15,915 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:15" (1/1) ...
[2020-09-25 13:11:15,949 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:15" (1/1) ...
[2020-09-25 13:11:15,961 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:15" (1/1) ...
[2020-09-25 13:11:15,967 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:15" (1/1) ...
[2020-09-25 13:11:15,975 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 13:11:15,976 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 13:11:15,976 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 13:11:15,976 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 13:11:15,978 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:15" (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 13:11:16,079 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 13:11:16,080 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 13:11:16,080 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 13:11:16,080 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 13:11:16,080 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 13:11:16,081 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 13:11:16,081 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 13:11:16,082 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 13:11:16,082 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 13:11:16,083 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-25 13:11:16,083 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 13:11:16,083 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 13:11:16,083 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 13:11:16,083 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor
[2020-09-25 13:11:16,083 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 13:11:16,084 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 13:11:16,085 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 13:11:16,085 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 13:11:16,085 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 13:11:16,085 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 13:11:16,086 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-25 13:11:16,086 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-25 13:11:16,086 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 13:11:16,087 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 13:11:16,087 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 13:11:16,088 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 13:11:16,088 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 13:11:16,088 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 13:11:16,088 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 13:11:16,088 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 13:11:16,088 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 13:11:16,089 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 13:11:16,089 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 13:11:16,089 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 13:11:16,089 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 13:11:16,089 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 13:11:16,089 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 13:11:16,090 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 13:11:16,090 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 13:11:16,090 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 13:11:16,090 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 13:11:16,090 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 13:11:16,090 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 13:11:16,091 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 13:11:16,091 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 13:11:16,091 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 13:11:16,091 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 13:11:16,091 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 13:11:16,091 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-25 13:11:16,092 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 13:11:16,092 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 13:11:16,092 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 13:11:16,093 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 13:11:16,093 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 13:11:16,093 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 13:11:16,093 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 13:11:16,093 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 13:11:16,093 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-25 13:11:16,094 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 13:11:16,094 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 13:11:16,094 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-25 13:11:16,094 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor
[2020-09-25 13:11:16,094 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 13:11:16,095 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 13:11:16,095 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 13:11:16,095 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 13:11:16,095 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 13:11:16,095 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 13:11:16,095 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 13:11:16,096 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 13:11:16,096 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 13:11:16,097 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 13:11:16,098 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 13:11:16,098 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 13:11:16,098 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 13:11:16,098 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 13:11:16,098 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 13:11:16,098 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 13:11:16,099 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 13:11:16,099 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 13:11:16,099 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 13:11:16,099 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 13:11:16,099 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 13:11:16,099 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 13:11:16,099 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 13:11:16,100 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 13:11:16,100 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 13:11:16,101 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 13:11:16,101 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 13:11:16,101 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 13:11:16,101 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 13:11:16,101 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 13:11:17,439 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 13:11:17,439 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 13:11:17,447 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:11:17 BoogieIcfgContainer
[2020-09-25 13:11:17,447 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 13:11:17,449 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 13:11:17,449 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 13:11:17,452 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 13:11:17,453 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:11:15" (1/3) ...
[2020-09-25 13:11:17,454 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16780e3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:11:17, skipping insertion in model container
[2020-09-25 13:11:17,454 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:15" (2/3) ...
[2020-09-25 13:11:17,454 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16780e3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:11:17, skipping insertion in model container
[2020-09-25 13:11:17,454 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:11:17" (3/3) ...
[2020-09-25 13:11:17,457 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product23.cil.c
[2020-09-25 13:11:17,468 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 13:11:17,479 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 13:11:17,504 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 13:11:17,541 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 13:11:17,541 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 13:11:17,541 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 13:11:17,542 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 13:11:17,542 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 13:11:17,542 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 13:11:17,542 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 13:11:17,542 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 13:11:17,573 INFO  L276                IsEmpty]: Start isEmpty. Operand 312 states.
[2020-09-25 13:11:17,593 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 13:11:17,593 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 13:11:17,594 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 13:11:17,595 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:11:17,603 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:11:17,603 INFO  L82        PathProgramCache]: Analyzing trace with hash -2023786864, now seen corresponding path program 1 times
[2020-09-25 13:11:17,616 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:11:17,616 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [155108702]
[2020-09-25 13:11:17,617 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:11:18,020 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:18,183 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:18,407 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:20,019 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:23,037 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:23,038 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 13:11:23,038 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 13:11:23,038 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5002
[2020-09-25 13:11:23,042 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:23,043 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:23,043 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 13:11:23,043 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 80
[2020-09-25 13:11:23,043 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 60
[2020-09-25 13:11:23,044 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-09-25 13:11:23,518 WARN  L193               SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 13:11:23,523 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 13:11:23,580 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:23,633 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:23,904 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:23,905 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 13:11:23,905 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:23,905 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 314
[2020-09-25 13:11:23,906 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:23,906 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:23,906 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:23,906 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:23,907 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 76
[2020-09-25 13:11:23,907 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:23,988 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 13:11:23,989 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:23,991 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:23,996 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:23,996 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:11:23,996 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:23,997 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 13:11:23,997 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:23,998 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:23,998 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:23,998 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:23,999 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:11:23,999 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 13:11:24,002 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 13:11:24,003 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:24,004 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:24,009 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:24,010 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:11:24,010 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:24,011 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 13:11:24,011 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:24,011 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:24,012 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:24,012 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:24,013 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:11:24,013 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 13:11:24,015 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 13:11:24,017 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:24,019 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:24,029 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:24,029 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:11:24,030 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:24,030 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-25 13:11:24,030 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:24,030 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:24,031 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:24,031 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:24,031 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 13:11:24,031 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:24,034 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 13:11:24,035 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:24,037 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:24,042 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:24,042 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:11:24,042 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:24,043 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 13:11:24,043 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:24,044 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:24,044 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:24,044 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:24,045 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:11:24,045 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:24,047 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 13:11:24,048 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:24,050 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:24,053 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:24,053 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:11:24,054 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:24,054 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 13:11:24,055 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:24,055 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:24,055 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:11:24,056 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 13:11:24,056 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:11:24,057 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:24,059 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 13:11:24,060 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:24,062 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:24,065 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:24,065 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:11:24,066 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:24,066 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 13:11:24,066 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:24,066 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:24,067 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:11:24,067 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 13:11:24,068 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:11:24,068 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:24,070 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 13:11:24,071 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:24,073 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:24,076 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:24,077 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:11:24,077 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:24,077 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 13:11:24,078 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:24,078 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:24,079 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:11:24,079 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 13:11:24,079 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:11:24,080 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:24,125 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 13:11:24,126 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [155108702]
[2020-09-25 13:11:24,128 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 13:11:24,129 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-25 13:11:24,130 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690009493]
[2020-09-25 13:11:24,137 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-25 13:11:24,137 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 13:11:24,163 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-25 13:11:24,165 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-25 13:11:24,170 INFO  L87              Difference]: Start difference. First operand 312 states. Second operand 4 states.
[2020-09-25 13:11:24,900 WARN  L193               SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 13:11:27,293 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 13:11:27,294 INFO  L93              Difference]: Finished difference Result 674 states and 823 transitions.
[2020-09-25 13:11:27,295 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-09-25 13:11:27,297 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 153
[2020-09-25 13:11:27,298 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 13:11:27,320 INFO  L225             Difference]: With dead ends: 674
[2020-09-25 13:11:27,321 INFO  L226             Difference]: Without dead ends: 473
[2020-09-25 13:11:27,328 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 13:11:27,350 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 473 states.
[2020-09-25 13:11:27,497 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 406.
[2020-09-25 13:11:27,499 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 406 states.
[2020-09-25 13:11:27,502 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 457 transitions.
[2020-09-25 13:11:27,505 INFO  L78                 Accepts]: Start accepts. Automaton has 406 states and 457 transitions. Word has length 153
[2020-09-25 13:11:27,506 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 13:11:27,506 INFO  L479      AbstractCegarLoop]: Abstraction has 406 states and 457 transitions.
[2020-09-25 13:11:27,506 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-25 13:11:27,506 INFO  L276                IsEmpty]: Start isEmpty. Operand 406 states and 457 transitions.
[2020-09-25 13:11:27,512 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 168
[2020-09-25 13:11:27,512 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 13:11:27,512 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]
[2020-09-25 13:11:27,513 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 13:11:27,513 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:11:27,513 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:11:27,514 INFO  L82        PathProgramCache]: Analyzing trace with hash 558569837, now seen corresponding path program 1 times
[2020-09-25 13:11:27,514 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:11:27,514 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1093487784]
[2020-09-25 13:11:27,514 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:11:27,570 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:27,678 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:27,936 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:31,036 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:31,036 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 206
[2020-09-25 13:11:31,037 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 13:11:31,037 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3463
[2020-09-25 13:11:31,037 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:31,037 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:31,038 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 13:11:31,038 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 77
[2020-09-25 13:11:31,038 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 113
[2020-09-25 13:11:31,038 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:31,462 WARN  L193               SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 13:11:31,463 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 13:11:31,504 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:31,551 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:31,809 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:31,810 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 13:11:31,810 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:31,810 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 302
[2020-09-25 13:11:31,811 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:31,811 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:31,812 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:31,812 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:31,812 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 73
[2020-09-25 13:11:31,813 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:31,866 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 13:11:31,868 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:31,870 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:31,873 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:31,873 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:11:31,873 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:31,873 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 13:11:31,874 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:31,874 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:31,874 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:31,874 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:31,875 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:11:31,875 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:31,876 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 13:11:31,877 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:31,878 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:31,881 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:31,881 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:11:31,881 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:31,882 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 13:11:31,882 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:31,882 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:31,882 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:31,883 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:31,883 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:11:31,883 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:31,885 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 13:11:31,886 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:31,887 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:31,895 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:31,895 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:11:31,895 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:31,895 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 13:11:31,896 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:31,896 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:31,896 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:31,896 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:31,897 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 13:11:31,897 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:31,899 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 13:11:31,900 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:31,901 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:31,904 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:31,904 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:11:31,904 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:31,905 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 13:11:31,905 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:31,905 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:31,905 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:31,905 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:31,906 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:11:31,906 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:31,923 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2020-09-25 13:11:31,925 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:31,928 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:31,932 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:31,932 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 22
[2020-09-25 13:11:31,932 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:31,933 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 13:11:31,933 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:31,933 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:31,933 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:31,934 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:31,934 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 18
[2020-09-25 13:11:31,934 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:31,937 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 13:11:31,937 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:31,939 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:31,940 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:31,941 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-25 13:11:31,941 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:31,941 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 13:11:31,941 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:31,942 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:31,942 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:11:31,942 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:31,942 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:11:31,943 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:31,944 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 13:11:31,945 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:31,946 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:31,948 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:31,948 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:11:31,948 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:31,949 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 13:11:31,949 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:31,949 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:31,949 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:11:31,950 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:31,950 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:11:31,950 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:31,951 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135
[2020-09-25 13:11:31,953 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:31,954 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:31,957 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:31,958 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:11:31,958 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:31,958 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 13:11:31,958 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:31,959 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:31,959 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:31,959 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:31,959 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 13:11:31,959 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:31,961 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145
[2020-09-25 13:11:31,963 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:31,965 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:31,979 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:31,980 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:11:31,980 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:31,980 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 16
[2020-09-25 13:11:31,980 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:31,981 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:31,981 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 13:11:31,981 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:31,981 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 13:11:31,982 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:32,006 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155
[2020-09-25 13:11:32,007 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:32,008 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:32,009 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:32,010 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:11:32,010 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:32,010 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 13:11:32,010 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:32,011 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:32,011 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:11:32,012 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 13:11:32,012 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:11:32,012 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:32,045 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 13:11:32,046 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1093487784]
[2020-09-25 13:11:32,046 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 13:11:32,046 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-09-25 13:11:32,047 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299689642]
[2020-09-25 13:11:32,050 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-25 13:11:32,050 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 13:11:32,051 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-25 13:11:32,051 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-09-25 13:11:32,051 INFO  L87              Difference]: Start difference. First operand 406 states and 457 transitions. Second operand 9 states.
[2020-09-25 13:11:32,657 WARN  L193               SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 13:11:34,881 WARN  L193               SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 13:11:35,234 WARN  L193               SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 13:11:35,573 WARN  L193               SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 13:11:35,920 WARN  L193               SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 13:11:36,239 WARN  L193               SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 13:11:36,581 WARN  L193               SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 13:11:36,872 WARN  L193               SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 13:11:38,384 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 13:11:38,385 INFO  L93              Difference]: Finished difference Result 1198 states and 1544 transitions.
[2020-09-25 13:11:38,386 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2020-09-25 13:11:38,386 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 167
[2020-09-25 13:11:38,388 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 13:11:38,399 INFO  L225             Difference]: With dead ends: 1198
[2020-09-25 13:11:38,399 INFO  L226             Difference]: Without dead ends: 855
[2020-09-25 13:11:38,405 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306
[2020-09-25 13:11:38,406 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 855 states.
[2020-09-25 13:11:38,544 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 679.
[2020-09-25 13:11:38,544 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 679 states.
[2020-09-25 13:11:38,549 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 785 transitions.
[2020-09-25 13:11:38,550 INFO  L78                 Accepts]: Start accepts. Automaton has 679 states and 785 transitions. Word has length 167
[2020-09-25 13:11:38,551 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 13:11:38,551 INFO  L479      AbstractCegarLoop]: Abstraction has 679 states and 785 transitions.
[2020-09-25 13:11:38,551 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-25 13:11:38,551 INFO  L276                IsEmpty]: Start isEmpty. Operand 679 states and 785 transitions.
[2020-09-25 13:11:38,556 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 178
[2020-09-25 13:11:38,557 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 13:11:38,557 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 13:11:38,557 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 13:11:38,557 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:11:38,558 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:11:38,558 INFO  L82        PathProgramCache]: Analyzing trace with hash 95529110, now seen corresponding path program 1 times
[2020-09-25 13:11:38,558 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:11:38,559 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1599569147]
[2020-09-25 13:11:38,559 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:11:38,630 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 13:11:38,639 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 13:11:38,639 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 13:11:38,645 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 13:11:38,674 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:11:38 BoogieIcfgContainer
[2020-09-25 13:11:38,674 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 13:11:38,677 INFO  L168              Benchmark]: Toolchain (without parser) took 23557.31 ms. Allocated memory was 136.8 MB in the beginning and 563.1 MB in the end (delta: 426.2 MB). Free memory was 99.0 MB in the beginning and 94.4 MB in the end (delta: 4.6 MB). Peak memory consumption was 430.9 MB. Max. memory is 7.1 GB.
[2020-09-25 13:11:38,678 INFO  L168              Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 136.8 MB. Free memory was 118.3 MB in the beginning and 118.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-09-25 13:11:38,679 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 750.29 ms. Allocated memory was 136.8 MB in the beginning and 199.8 MB in the end (delta: 62.9 MB). Free memory was 98.4 MB in the beginning and 167.5 MB in the end (delta: -69.1 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB.
[2020-09-25 13:11:38,680 INFO  L168              Benchmark]: Boogie Preprocessor took 100.08 ms. Allocated memory is still 199.8 MB. Free memory was 167.5 MB in the beginning and 163.2 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB.
[2020-09-25 13:11:38,681 INFO  L168              Benchmark]: RCFGBuilder took 1471.60 ms. Allocated memory was 199.8 MB in the beginning and 228.1 MB in the end (delta: 28.3 MB). Free memory was 163.2 MB in the beginning and 172.3 MB in the end (delta: -9.2 MB). Peak memory consumption was 88.3 MB. Max. memory is 7.1 GB.
[2020-09-25 13:11:38,682 INFO  L168              Benchmark]: TraceAbstraction took 21225.77 ms. Allocated memory was 228.1 MB in the beginning and 563.1 MB in the end (delta: 335.0 MB). Free memory was 172.3 MB in the beginning and 94.4 MB in the end (delta: 77.9 MB). Peak memory consumption was 413.0 MB. Max. memory is 7.1 GB.
[2020-09-25 13:11:38,686 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 136.8 MB. Free memory was 118.3 MB in the beginning and 118.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 750.29 ms. Allocated memory was 136.8 MB in the beginning and 199.8 MB in the end (delta: 62.9 MB). Free memory was 98.4 MB in the beginning and 167.5 MB in the end (delta: -69.1 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 100.08 ms. Allocated memory is still 199.8 MB. Free memory was 167.5 MB in the beginning and 163.2 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1471.60 ms. Allocated memory was 199.8 MB in the beginning and 228.1 MB in the end (delta: 28.3 MB). Free memory was 163.2 MB in the beginning and 172.3 MB in the end (delta: -9.2 MB). Peak memory consumption was 88.3 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 21225.77 ms. Allocated memory was 228.1 MB in the beginning and 563.1 MB in the end (delta: 335.0 MB). Free memory was 172.3 MB in the beginning and 94.4 MB in the end (delta: 77.9 MB). Peak memory consumption was 413.0 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 541]: 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;
[L177]              int pumpRunning  =    0;
[L178]              int systemActive  =    1;
[L438]              int cleanupTimeShifts  =    4;
[L715]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L514]              int retValue_acc ;
[L515]              int tmp ;
[L519]  FCALL       select_helpers()
[L520]  FCALL       select_features()
[L521]  CALL, EXPR  valid_product()
[L938]              int retValue_acc ;
[L941]              retValue_acc = 1
[L942]              return (retValue_acc);
[L521]  RET, EXPR   valid_product()
[L521]              tmp = valid_product()
[L523]  COND TRUE   \read(tmp)
[L525]  FCALL       setup()
[L526]  CALL        runTest()
[L505]  CALL        test()
[L372]              int splverifierCounter ;
[L373]              int tmp ;
[L374]              int tmp___0 ;
[L375]              int tmp___1 ;
[L376]              int tmp___2 ;
[L379]              splverifierCounter = 0
[L381]  COND TRUE   1
[L383]  COND TRUE   splverifierCounter < 4
[L389]              tmp = __VERIFIER_nondet_int()
[L391]  COND TRUE   \read(tmp)
[L393]  CALL        waterRise()
[L65]   COND TRUE   waterLevel < 2
[L66]               waterLevel = waterLevel + 1
[L393]  RET         waterRise()
[L399]              tmp___0 = __VERIFIER_nondet_int()
[L401]  COND FALSE  !(\read(tmp___0))
[L409]              tmp___2 = __VERIFIER_nondet_int()
[L411]  COND FALSE  !(\read(tmp___2))
[L415]              tmp___1 = __VERIFIER_nondet_int()
[L417]  COND TRUE   \read(tmp___1)
[L419]  CALL        stopSystem()
[L358]  COND FALSE  !(\read(pumpRunning))
[L365]              systemActive = 0
[L419]  RET         stopSystem()
[L426]  CALL        timeShift()
[L184]  COND FALSE  !(\read(pumpRunning))
[L191]  COND FALSE  !(\read(systemActive))
[L199]  CALL        __utac_acc__Specification3_spec__1()
[L139]              int tmp ;
[L140]              int tmp___0 ;
[L141]              int tmp___1 ;
[L145]  CALL, EXPR  isMethaneLevelCritical()
[L86]               int retValue_acc ;
[L89]               retValue_acc = methaneLevelCritical
[L90]               return (retValue_acc);
[L145]  RET, EXPR   isMethaneLevelCritical()
[L145]              tmp = isMethaneLevelCritical()
[L147]  COND FALSE  !(\read(tmp))
[L151]  CALL, EXPR  getWaterLevel()
[L118]              int retValue_acc ;
[L121]              retValue_acc = waterLevel
[L122]              return (retValue_acc);
[L151]  RET, EXPR   getWaterLevel()
[L151]              tmp___0 = getWaterLevel()
[L153]  COND TRUE   tmp___0 == 2
[L155]  CALL, EXPR  isPumpRunning()
[L291]              int retValue_acc ;
[L294]              retValue_acc = pumpRunning
[L295]              return (retValue_acc);
[L155]  RET, EXPR   isPumpRunning()
[L155]              tmp___1 = isPumpRunning()
[L157]  COND FALSE  !(\read(tmp___1))
[L161]  CALL        __automaton_fail()
[L541]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 39 procedures, 627 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 21.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 9.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 539 SDtfs, 969 SDslu, 696 SDs, 0 SdLazy, 1853 SolverSat, 338 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=679occurred 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: 0.3s AutomataMinimizationTime, 2 MinimizatonAttempts, 243 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 10.5s InterpolantComputationTime, 497 NumberOfCodeBlocks, 497 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 318 ConstructedInterpolants, 0 QuantifiedInterpolants, 135902 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...