/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_product28.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 13:11:27,491 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 13:11:27,495 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 13:11:27,523 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 13:11:27,523 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 13:11:27,524 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 13:11:27,526 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 13:11:27,528 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 13:11:27,529 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 13:11:27,530 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 13:11:27,531 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 13:11:27,533 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 13:11:27,533 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 13:11:27,534 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 13:11:27,535 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 13:11:27,537 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 13:11:27,538 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 13:11:27,539 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 13:11:27,540 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 13:11:27,542 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 13:11:27,544 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 13:11:27,545 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 13:11:27,546 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 13:11:27,547 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 13:11:27,551 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 13:11:27,551 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 13:11:27,551 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 13:11:27,552 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 13:11:27,553 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 13:11:27,554 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 13:11:27,554 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 13:11:27,555 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 13:11:27,556 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 13:11:27,556 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 13:11:27,558 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 13:11:27,558 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 13:11:27,559 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 13:11:27,559 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 13:11:27,559 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 13:11:27,561 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 13:11:27,562 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 13:11:27,563 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 13:11:27,590 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 13:11:27,590 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 13:11:27,591 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 13:11:27,591 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 13:11:27,592 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 13:11:27,592 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 13:11:27,592 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 13:11:27,592 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 13:11:27,592 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 13:11:27,593 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 13:11:27,593 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 13:11:27,593 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 13:11:27,593 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 13:11:27,593 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 13:11:27,594 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 13:11:27,594 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 13:11:27,594 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 13:11:27,594 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 13:11:27,594 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 13:11:27,595 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 13:11:27,595 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 13:11:27,595 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 13:11:27,595 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 13:11:27,595 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 13:11:27,596 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 13:11:27,596 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 13:11:27,596 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 13:11:27,596 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 13:11:27,596 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 13:11:27,597 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 13:11:28,058 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 13:11:28,085 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 13:11:28,089 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 13:11:28,091 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 13:11:28,093 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 13:11:28,094 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product28.cil.c
[2020-09-25 13:11:28,186 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f7d6b33ab/e69ad29026ed4dbf8c90b89afb1af69a/FLAGfb7d8d369
[2020-09-25 13:11:28,758 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 13:11:28,759 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product28.cil.c
[2020-09-25 13:11:28,772 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f7d6b33ab/e69ad29026ed4dbf8c90b89afb1af69a/FLAGfb7d8d369
[2020-09-25 13:11:29,037 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f7d6b33ab/e69ad29026ed4dbf8c90b89afb1af69a
[2020-09-25 13:11:29,049 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 13:11:29,055 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 13:11:29,056 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 13:11:29,056 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 13:11:29,060 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 13:11:29,061 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:11:29" (1/1) ...
[2020-09-25 13:11:29,067 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:29, skipping insertion in model container
[2020-09-25 13:11:29,067 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:11:29" (1/1) ...
[2020-09-25 13:11:29,077 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 13:11:29,135 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 13:11:29,635 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 13:11:29,653 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 13:11:29,740 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 13:11:29,778 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 13:11:29,779 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:29 WrapperNode
[2020-09-25 13:11:29,779 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 13:11:29,780 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 13:11:29,780 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 13:11:29,780 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 13:11:29,795 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:29" (1/1) ...
[2020-09-25 13:11:29,796 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:29" (1/1) ...
[2020-09-25 13:11:29,817 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:29" (1/1) ...
[2020-09-25 13:11:29,817 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:29" (1/1) ...
[2020-09-25 13:11:29,851 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:29" (1/1) ...
[2020-09-25 13:11:29,863 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:29" (1/1) ...
[2020-09-25 13:11:29,868 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:29" (1/1) ...
[2020-09-25 13:11:29,876 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 13:11:29,877 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 13:11:29,877 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 13:11:29,877 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 13:11:29,878 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:29" (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 13:11:29,951 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 13:11:29,952 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 13:11:29,952 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 13:11:29,952 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 13:11:29,952 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 13:11:29,952 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 13:11:29,953 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 13:11:29,953 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 13:11:29,953 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 13:11:29,953 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 13:11:29,953 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor
[2020-09-25 13:11:29,953 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 13:11:29,954 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 13:11:29,954 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 13:11:29,954 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 13:11:29,954 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 13:11:29,954 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-25 13:11:29,955 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-25 13:11:29,955 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-25 13:11:29,955 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 13:11:29,955 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 13:11:29,955 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 13:11:29,956 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 13:11:29,956 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 13:11:29,956 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 13:11:29,956 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 13:11:29,956 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-25 13:11:29,956 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 13:11:29,957 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 13:11:29,957 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 13:11:29,957 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 13:11:29,957 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 13:11:29,957 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 13:11:29,957 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 13:11:29,958 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 13:11:29,958 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 13:11:29,958 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 13:11:29,958 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 13:11:29,958 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 13:11:29,958 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 13:11:29,959 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 13:11:29,959 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 13:11:29,959 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 13:11:29,959 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 13:11:29,959 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 13:11:29,960 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 13:11:29,960 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 13:11:29,960 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 13:11:29,960 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 13:11:29,960 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 13:11:29,960 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-25 13:11:29,960 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 13:11:29,961 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 13:11:29,961 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 13:11:29,961 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 13:11:29,961 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 13:11:29,961 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-25 13:11:29,961 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-25 13:11:29,962 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 13:11:29,962 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 13:11:29,962 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 13:11:29,962 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-25 13:11:29,962 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor
[2020-09-25 13:11:29,962 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 13:11:29,963 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 13:11:29,963 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 13:11:29,963 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 13:11:29,963 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 13:11:29,963 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 13:11:29,963 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 13:11:29,964 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 13:11:29,964 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 13:11:29,964 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 13:11:29,964 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 13:11:29,964 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 13:11:29,964 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 13:11:29,965 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 13:11:29,965 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 13:11:29,965 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 13:11:29,965 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 13:11:29,965 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 13:11:29,965 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 13:11:29,965 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 13:11:29,966 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 13:11:29,966 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 13:11:29,966 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 13:11:29,966 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 13:11:29,966 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 13:11:29,967 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 13:11:29,967 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 13:11:29,967 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 13:11:29,967 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 13:11:29,967 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 13:11:29,967 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 13:11:31,165 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 13:11:31,166 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 13:11:31,174 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:11:31 BoogieIcfgContainer
[2020-09-25 13:11:31,174 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 13:11:31,175 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 13:11:31,176 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 13:11:31,179 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 13:11:31,180 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:11:29" (1/3) ...
[2020-09-25 13:11:31,181 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4823cd3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:11:31, skipping insertion in model container
[2020-09-25 13:11:31,181 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:29" (2/3) ...
[2020-09-25 13:11:31,182 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4823cd3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:11:31, skipping insertion in model container
[2020-09-25 13:11:31,182 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:11:31" (3/3) ...
[2020-09-25 13:11:31,184 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product28.cil.c
[2020-09-25 13:11:31,196 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 13:11:31,210 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 13:11:31,232 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 13:11:31,264 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 13:11:31,264 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 13:11:31,264 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 13:11:31,265 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 13:11:31,265 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 13:11:31,265 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 13:11:31,265 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 13:11:31,265 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 13:11:31,296 INFO  L276                IsEmpty]: Start isEmpty. Operand 312 states.
[2020-09-25 13:11:31,314 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 13:11:31,314 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 13:11:31,316 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 13:11:31,316 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:11:31,324 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:11:31,325 INFO  L82        PathProgramCache]: Analyzing trace with hash 1905765184, now seen corresponding path program 1 times
[2020-09-25 13:11:31,337 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:11:31,337 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [742178878]
[2020-09-25 13:11:31,338 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:11:31,727 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:31,865 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:32,076 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:33,522 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:36,746 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:36,746 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 13:11:36,747 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 13:11:36,747 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5006
[2020-09-25 13:11:36,751 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:36,751 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:36,752 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 13:11:36,752 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-25 13:11:36,752 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 62
[2020-09-25 13:11:36,752 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-09-25 13:11:37,157 WARN  L193               SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 13:11:37,160 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 13:11:37,199 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:37,239 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:37,465 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:37,465 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 13:11:37,466 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:37,466 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 265
[2020-09-25 13:11:37,466 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:37,466 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:37,467 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:37,467 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:37,467 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-25 13:11:37,467 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:37,544 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 13:11:37,546 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:37,550 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:37,554 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:37,554 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:11:37,555 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:37,555 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 13:11:37,555 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:37,555 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:37,556 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:37,556 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:37,556 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:11:37,556 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:37,558 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 13:11:37,559 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:37,561 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:37,566 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:37,567 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:11:37,567 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:37,567 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 13:11:37,567 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:37,568 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:37,568 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:37,568 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:37,568 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:11:37,569 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:37,572 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 13:11:37,574 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:37,577 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:37,587 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:37,587 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:11:37,588 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:37,588 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-25 13:11:37,588 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:37,588 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:37,589 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:37,589 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:37,589 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 13:11:37,589 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:37,593 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 13:11:37,594 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:37,596 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:37,599 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:37,600 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:11:37,600 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:37,600 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 13:11:37,600 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:37,601 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:37,601 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:37,601 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:37,601 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:11:37,602 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:37,604 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 13:11:37,605 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:37,609 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:37,611 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:37,611 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:11:37,613 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:37,613 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 13:11:37,613 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:37,613 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:37,614 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:11:37,614 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 13:11:37,614 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:11:37,614 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:37,616 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 13:11:37,618 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:37,619 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:37,621 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:37,621 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:11:37,621 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:37,622 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 13:11:37,622 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:37,622 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:37,622 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:11:37,622 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 13:11:37,623 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:11:37,623 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:37,627 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 13:11:37,630 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:37,632 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:37,634 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:37,634 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:11:37,634 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:37,635 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 13:11:37,635 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:37,635 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:37,635 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:11:37,636 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 13:11:37,636 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:11:37,636 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:37,693 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 13:11:37,694 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [742178878]
[2020-09-25 13:11:37,696 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 13:11:37,696 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-25 13:11:37,697 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644440243]
[2020-09-25 13:11:37,705 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-25 13:11:37,705 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 13:11:37,725 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-25 13:11:37,729 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-25 13:11:37,734 INFO  L87              Difference]: Start difference. First operand 312 states. Second operand 4 states.
[2020-09-25 13:11:38,314 WARN  L193               SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 13:11:40,386 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 13:11:40,387 INFO  L93              Difference]: Finished difference Result 623 states and 756 transitions.
[2020-09-25 13:11:40,389 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-09-25 13:11:40,390 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 153
[2020-09-25 13:11:40,391 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 13:11:40,411 INFO  L225             Difference]: With dead ends: 623
[2020-09-25 13:11:40,411 INFO  L226             Difference]: Without dead ends: 438
[2020-09-25 13:11:40,417 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-25 13:11:40,440 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 438 states.
[2020-09-25 13:11:40,601 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 370.
[2020-09-25 13:11:40,603 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 370 states.
[2020-09-25 13:11:40,608 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 411 transitions.
[2020-09-25 13:11:40,610 INFO  L78                 Accepts]: Start accepts. Automaton has 370 states and 411 transitions. Word has length 153
[2020-09-25 13:11:40,620 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 13:11:40,620 INFO  L479      AbstractCegarLoop]: Abstraction has 370 states and 411 transitions.
[2020-09-25 13:11:40,620 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-25 13:11:40,620 INFO  L276                IsEmpty]: Start isEmpty. Operand 370 states and 411 transitions.
[2020-09-25 13:11:40,630 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 163
[2020-09-25 13:11:40,631 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 13:11:40,631 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 13:11:40,631 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 13:11:40,632 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:11:40,634 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:11:40,635 INFO  L82        PathProgramCache]: Analyzing trace with hash -451969796, now seen corresponding path program 1 times
[2020-09-25 13:11:40,635 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:11:40,635 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [645372640]
[2020-09-25 13:11:40,635 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:11:40,694 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:40,751 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:41,000 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:43,849 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:43,850 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 199
[2020-09-25 13:11:43,850 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 13:11:43,851 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3151
[2020-09-25 13:11:43,851 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:43,851 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:43,852 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 13:11:43,852 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 79
[2020-09-25 13:11:43,852 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 104
[2020-09-25 13:11:43,853 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:44,255 WARN  L193               SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 13:11:44,256 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 13:11:44,284 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:44,317 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:44,504 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:44,505 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 13:11:44,505 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:44,505 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 219
[2020-09-25 13:11:44,505 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:44,506 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:44,506 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:44,506 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:44,506 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-25 13:11:44,507 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:44,544 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 13:11:44,545 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:44,546 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:44,549 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:44,549 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:11:44,549 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:44,550 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 13:11:44,550 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:44,550 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:44,550 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:44,551 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:44,551 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:11:44,551 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:44,552 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 13:11:44,553 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:44,554 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:44,556 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:44,556 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:11:44,556 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:44,557 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 13:11:44,557 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:44,557 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:44,557 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:44,558 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:44,558 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:11:44,558 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:44,559 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 13:11:44,560 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:44,562 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:44,568 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:44,568 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:11:44,568 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:44,569 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 13:11:44,569 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:44,569 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:44,569 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:44,570 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:44,570 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 13:11:44,570 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:44,572 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 13:11:44,572 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:44,573 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:44,576 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:44,576 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:11:44,576 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:44,576 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 13:11:44,577 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:44,577 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:44,577 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:44,577 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:44,577 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:11:44,578 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:44,587 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2020-09-25 13:11:44,588 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:44,590 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:44,593 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:44,593 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-25 13:11:44,593 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:44,593 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 13:11:44,594 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:44,594 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:44,594 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:44,594 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:44,594 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-09-25 13:11:44,595 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:44,596 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 13:11:44,597 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:44,598 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:44,599 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:44,599 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:11:44,600 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:44,600 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 13:11:44,600 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:44,600 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:44,601 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:11:44,601 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:44,601 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:11:44,601 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:44,602 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130
[2020-09-25 13:11:44,603 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:44,605 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:44,607 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:44,607 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:11:44,607 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:44,608 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 13:11:44,608 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:44,608 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:44,608 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:44,609 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:44,609 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 13:11:44,609 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:44,611 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-25 13:11:44,612 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:44,613 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:44,619 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:44,619 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:11:44,620 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:44,620 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 13:11:44,620 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:44,620 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:44,620 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 13:11:44,621 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:44,621 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 13:11:44,621 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:44,652 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-25 13:11:44,653 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:44,654 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:44,656 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:44,656 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:11:44,656 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:44,656 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 13:11:44,656 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:44,657 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:44,657 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:11:44,657 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 13:11:44,657 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:11:44,658 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:44,690 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 13:11:44,690 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [645372640]
[2020-09-25 13:11:44,691 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 13:11:44,691 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2020-09-25 13:11:44,691 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747589547]
[2020-09-25 13:11:44,693 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-09-25 13:11:44,694 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 13:11:44,694 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-09-25 13:11:44,694 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90
[2020-09-25 13:11:44,694 INFO  L87              Difference]: Start difference. First operand 370 states and 411 transitions. Second operand 10 states.
[2020-09-25 13:11:45,239 WARN  L193               SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 13:11:47,276 WARN  L193               SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188
[2020-09-25 13:11:47,846 WARN  L193               SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190
[2020-09-25 13:11:48,205 WARN  L193               SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 13:11:48,531 WARN  L193               SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-25 13:11:48,839 WARN  L193               SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 13:11:49,302 WARN  L193               SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-25 13:11:49,634 WARN  L193               SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 192
[2020-09-25 13:11:50,031 WARN  L193               SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 13:11:51,257 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 13:11:51,258 INFO  L93              Difference]: Finished difference Result 1089 states and 1408 transitions.
[2020-09-25 13:11:51,258 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2020-09-25 13:11:51,258 INFO  L78                 Accepts]: Start accepts. Automaton has 10 states. Word has length 162
[2020-09-25 13:11:51,259 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 13:11:51,268 INFO  L225             Difference]: With dead ends: 1089
[2020-09-25 13:11:51,268 INFO  L226             Difference]: Without dead ends: 782
[2020-09-25 13:11:51,274 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380
[2020-09-25 13:11:51,276 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 782 states.
[2020-09-25 13:11:51,429 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 603.
[2020-09-25 13:11:51,429 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 603 states.
[2020-09-25 13:11:51,433 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 687 transitions.
[2020-09-25 13:11:51,433 INFO  L78                 Accepts]: Start accepts. Automaton has 603 states and 687 transitions. Word has length 162
[2020-09-25 13:11:51,434 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 13:11:51,434 INFO  L479      AbstractCegarLoop]: Abstraction has 603 states and 687 transitions.
[2020-09-25 13:11:51,434 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-09-25 13:11:51,434 INFO  L276                IsEmpty]: Start isEmpty. Operand 603 states and 687 transitions.
[2020-09-25 13:11:51,438 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 178
[2020-09-25 13:11:51,438 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 13:11:51,438 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 13:11:51,438 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 13:11:51,438 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:11:51,439 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:11:51,439 INFO  L82        PathProgramCache]: Analyzing trace with hash 525017164, now seen corresponding path program 1 times
[2020-09-25 13:11:51,439 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:11:51,439 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [184171705]
[2020-09-25 13:11:51,440 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:11:51,499 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 13:11:51,507 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 13:11:51,508 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 13:11:51,514 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 13:11:51,540 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:11:51 BoogieIcfgContainer
[2020-09-25 13:11:51,540 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 13:11:51,542 INFO  L168              Benchmark]: Toolchain (without parser) took 22491.18 ms. Allocated memory was 140.5 MB in the beginning and 565.7 MB in the end (delta: 425.2 MB). Free memory was 101.0 MB in the beginning and 477.1 MB in the end (delta: -376.1 MB). Peak memory consumption was 49.1 MB. Max. memory is 7.1 GB.
[2020-09-25 13:11:51,543 INFO  L168              Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 140.5 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 13:11:51,544 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 723.07 ms. Allocated memory was 140.5 MB in the beginning and 202.4 MB in the end (delta: 61.9 MB). Free memory was 100.3 MB in the beginning and 170.1 MB in the end (delta: -69.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB.
[2020-09-25 13:11:51,545 INFO  L168              Benchmark]: Boogie Preprocessor took 96.83 ms. Allocated memory is still 202.4 MB. Free memory was 170.1 MB in the beginning and 166.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB.
[2020-09-25 13:11:51,546 INFO  L168              Benchmark]: RCFGBuilder took 1297.35 ms. Allocated memory was 202.4 MB in the beginning and 234.4 MB in the end (delta: 32.0 MB). Free memory was 166.0 MB in the beginning and 175.8 MB in the end (delta: -9.9 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB.
[2020-09-25 13:11:51,547 INFO  L168              Benchmark]: TraceAbstraction took 20364.73 ms. Allocated memory was 234.4 MB in the beginning and 565.7 MB in the end (delta: 331.4 MB). Free memory was 174.4 MB in the beginning and 477.1 MB in the end (delta: -302.7 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB.
[2020-09-25 13:11:51,550 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.52 ms. Allocated memory is still 140.5 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 723.07 ms. Allocated memory was 140.5 MB in the beginning and 202.4 MB in the end (delta: 61.9 MB). Free memory was 100.3 MB in the beginning and 170.1 MB in the end (delta: -69.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 96.83 ms. Allocated memory is still 202.4 MB. Free memory was 170.1 MB in the beginning and 166.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1297.35 ms. Allocated memory was 202.4 MB in the beginning and 234.4 MB in the end (delta: 32.0 MB). Free memory was 166.0 MB in the beginning and 175.8 MB in the end (delta: -9.9 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 20364.73 ms. Allocated memory was 234.4 MB in the beginning and 565.7 MB in the end (delta: 331.4 MB). Free memory was 174.4 MB in the beginning and 477.1 MB in the end (delta: -302.7 MB). Peak memory consumption was 28.6 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: 20.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 9.2s, 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, 4.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.8s 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: 0.3s AutomataMinimizationTime, 2 MinimizatonAttempts, 247 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 9.8s 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...