/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=0.2 --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_product27.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 10:56:32,260 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 10:56:32,264 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 10:56:32,290 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 10:56:32,290 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 10:56:32,291 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 10:56:32,293 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 10:56:32,295 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 10:56:32,297 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 10:56:32,298 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 10:56:32,299 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 10:56:32,300 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 10:56:32,300 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 10:56:32,302 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 10:56:32,303 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 10:56:32,304 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 10:56:32,305 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 10:56:32,306 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 10:56:32,308 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 10:56:32,310 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 10:56:32,311 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 10:56:32,313 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 10:56:32,314 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 10:56:32,315 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 10:56:32,318 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 10:56:32,318 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 10:56:32,318 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 10:56:32,320 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 10:56:32,320 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 10:56:32,321 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 10:56:32,321 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 10:56:32,322 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 10:56:32,323 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 10:56:32,324 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 10:56:32,326 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 10:56:32,326 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 10:56:32,327 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 10:56:32,327 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 10:56:32,327 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 10:56:32,328 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 10:56:32,329 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 10:56:32,330 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 10:56:32,367 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 10:56:32,368 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 10:56:32,369 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 10:56:32,369 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 10:56:32,369 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 10:56:32,370 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 10:56:32,370 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 10:56:32,370 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 10:56:32,370 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 10:56:32,370 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 10:56:32,371 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 10:56:32,371 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 10:56:32,371 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 10:56:32,371 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 10:56:32,371 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 10:56:32,372 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 10:56:32,372 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 10:56:32,372 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 10:56:32,372 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 10:56:32,372 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 10:56:32,373 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 10:56:32,376 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 10:56:32,376 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 10:56:32,376 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 10:56:32,376 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 10:56:32,377 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 10:56:32,377 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 10:56:32,377 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 10:56:32,377 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 10:56:32,378 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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;log-additional-information=true;
[2020-09-25 10:56:32,899 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 10:56:32,914 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 10:56:32,920 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 10:56:32,922 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 10:56:32,924 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 10:56:32,925 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product27.cil.c
[2020-09-25 10:56:33,013 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f175aba61/a0016b9844654d30974e06641ffe6ca6/FLAGa89c9be9b
[2020-09-25 10:56:33,621 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 10:56:33,622 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product27.cil.c
[2020-09-25 10:56:33,636 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f175aba61/a0016b9844654d30974e06641ffe6ca6/FLAGa89c9be9b
[2020-09-25 10:56:33,884 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f175aba61/a0016b9844654d30974e06641ffe6ca6
[2020-09-25 10:56:33,896 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 10:56:33,901 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 10:56:33,902 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 10:56:33,902 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 10:56:33,906 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 10:56:33,907 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:56:33" (1/1) ...
[2020-09-25 10:56:33,912 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11967da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:33, skipping insertion in model container
[2020-09-25 10:56:33,912 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:56:33" (1/1) ...
[2020-09-25 10:56:33,922 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 10:56:33,989 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 10:56:34,433 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 10:56:34,447 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 10:56:34,532 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 10:56:34,571 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 10:56:34,572 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:34 WrapperNode
[2020-09-25 10:56:34,572 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 10:56:34,573 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 10:56:34,573 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 10:56:34,574 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 10:56:34,587 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:34" (1/1) ...
[2020-09-25 10:56:34,588 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:34" (1/1) ...
[2020-09-25 10:56:34,608 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:34" (1/1) ...
[2020-09-25 10:56:34,609 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:34" (1/1) ...
[2020-09-25 10:56:34,643 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:34" (1/1) ...
[2020-09-25 10:56:34,654 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:34" (1/1) ...
[2020-09-25 10:56:34,659 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:34" (1/1) ...
[2020-09-25 10:56:34,669 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 10:56:34,669 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 10:56:34,669 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 10:56:34,669 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 10:56:34,671 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:34" (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 10:56:34,748 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 10:56:34,748 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 10:56:34,748 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 10:56:34,748 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 10:56:34,749 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 10:56:34,749 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 10:56:34,749 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 10:56:34,749 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor
[2020-09-25 10:56:34,749 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 10:56:34,750 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 10:56:34,750 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 10:56:34,750 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 10:56:34,750 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 10:56:34,750 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-25 10:56:34,751 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-25 10:56:34,751 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 10:56:34,751 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 10:56:34,751 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 10:56:34,751 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 10:56:34,752 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 10:56:34,752 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 10:56:34,753 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 10:56:34,753 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 10:56:34,753 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 10:56:34,753 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 10:56:34,753 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 10:56:34,753 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 10:56:34,754 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 10:56:34,754 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 10:56:34,754 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 10:56:34,754 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 10:56:34,754 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 10:56:34,754 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 10:56:34,754 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-25 10:56:34,757 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 10:56:34,757 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 10:56:34,758 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 10:56:34,758 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 10:56:34,758 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 10:56:34,758 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 10:56:34,758 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 10:56:34,758 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 10:56:34,759 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 10:56:34,759 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 10:56:34,759 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-25 10:56:34,759 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 10:56:34,759 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 10:56:34,759 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 10:56:34,760 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 10:56:34,760 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 10:56:34,760 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 10:56:34,760 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-25 10:56:34,760 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 10:56:34,761 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 10:56:34,761 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 10:56:34,761 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 10:56:34,761 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 10:56:34,761 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 10:56:34,761 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 10:56:34,762 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-25 10:56:34,762 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor
[2020-09-25 10:56:34,762 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 10:56:34,762 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 10:56:34,762 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 10:56:34,762 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 10:56:34,763 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 10:56:34,763 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 10:56:34,763 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 10:56:34,763 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 10:56:34,763 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 10:56:34,763 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 10:56:34,763 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 10:56:34,764 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 10:56:34,764 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 10:56:34,764 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 10:56:34,764 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 10:56:34,764 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 10:56:34,764 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 10:56:34,765 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 10:56:34,765 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 10:56:34,765 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 10:56:34,765 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 10:56:34,765 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 10:56:34,765 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 10:56:34,766 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 10:56:34,766 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 10:56:34,766 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 10:56:34,766 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 10:56:34,766 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 10:56:34,766 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 10:56:34,766 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 10:56:34,766 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 10:56:35,911 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 10:56:35,911 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 10:56:35,925 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:56:35 BoogieIcfgContainer
[2020-09-25 10:56:35,926 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 10:56:35,927 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 10:56:35,927 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 10:56:35,931 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 10:56:35,931 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:56:33" (1/3) ...
[2020-09-25 10:56:35,932 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22074ead and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:56:35, skipping insertion in model container
[2020-09-25 10:56:35,932 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:34" (2/3) ...
[2020-09-25 10:56:35,932 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22074ead and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:56:35, skipping insertion in model container
[2020-09-25 10:56:35,932 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:56:35" (3/3) ...
[2020-09-25 10:56:35,935 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product27.cil.c
[2020-09-25 10:56:35,946 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 10:56:35,957 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 10:56:35,978 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 10:56:36,006 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 10:56:36,006 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 10:56:36,006 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 10:56:36,006 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 10:56:36,006 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 10:56:36,006 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 10:56:36,007 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 10:56:36,007 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 10:56:36,033 INFO  L276                IsEmpty]: Start isEmpty. Operand 308 states.
[2020-09-25 10:56:36,050 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 10:56:36,051 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 10:56:36,052 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 10:56:36,053 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 10:56:36,060 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 10:56:36,061 INFO  L82        PathProgramCache]: Analyzing trace with hash 196536289, now seen corresponding path program 1 times
[2020-09-25 10:56:36,071 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 10:56:36,071 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2067636172]
[2020-09-25 10:56:36,072 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 10:56:36,430 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:36,625 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:36,804 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:38,275 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:41,485 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:41,485 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 10:56:41,486 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 10:56:41,486 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5042
[2020-09-25 10:56:41,490 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:41,490 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:41,490 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 10:56:41,491 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 80
[2020-09-25 10:56:41,491 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 90
[2020-09-25 10:56:41,491 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-25 10:56:41,975 WARN  L193               SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 10:56:41,979 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 10:56:42,024 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:42,069 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:42,300 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:42,300 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 10:56:42,300 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:42,301 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 271
[2020-09-25 10:56:42,301 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:42,301 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:42,301 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:42,302 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:42,302 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 76
[2020-09-25 10:56:42,302 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:42,374 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 10:56:42,377 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:42,380 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:42,386 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:42,386 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:56:42,387 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:42,387 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 10:56:42,387 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:42,387 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:42,388 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:42,388 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:42,388 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:56:42,388 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:42,391 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 10:56:42,392 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:42,395 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:42,399 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:42,399 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:56:42,399 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:42,399 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 10:56:42,400 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:42,400 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:42,400 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:42,400 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:42,400 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:56:42,401 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:42,403 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 10:56:42,404 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:42,407 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:42,416 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:42,417 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:42,417 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:42,417 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-25 10:56:42,417 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:42,418 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:42,419 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:42,419 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:42,419 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:56:42,419 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:42,422 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 10:56:42,423 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:42,425 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:42,429 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:42,430 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:56:42,430 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:42,430 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 10:56:42,430 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:42,431 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:42,431 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:42,431 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:42,431 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:56:42,432 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:42,435 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 10:56:42,437 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:42,440 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:42,444 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:42,444 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:42,445 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:42,445 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 10:56:42,445 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:42,445 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:42,446 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:42,446 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:42,446 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:56:42,446 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:42,448 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 10:56:42,449 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:42,451 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:42,460 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:42,460 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:42,460 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:42,461 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 10:56:42,461 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:42,461 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:42,461 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 10:56:42,462 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:42,462 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:56:42,462 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:42,492 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 10:56:42,493 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:42,496 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:42,498 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:42,498 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:42,498 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:42,499 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 10:56:42,499 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:42,499 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:42,499 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:56:42,499 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:56:42,500 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:56:42,501 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:42,539 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 10:56:42,540 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2067636172]
[2020-09-25 10:56:42,542 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 10:56:42,543 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-25 10:56:42,544 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574786494]
[2020-09-25 10:56:42,553 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 10:56:42,553 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 10:56:42,570 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 10:56:42,573 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-25 10:56:42,576 INFO  L87              Difference]: Start difference. First operand 308 states. Second operand 8 states.
[2020-09-25 10:56:43,210 WARN  L193               SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 10:56:44,728 WARN  L193               SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:56:45,104 WARN  L193               SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 10:56:45,511 WARN  L193               SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:56:45,920 WARN  L193               SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 10:56:46,238 WARN  L193               SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:56:46,763 WARN  L193               SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 10:56:47,100 WARN  L193               SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:56:48,086 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 10:56:48,086 INFO  L93              Difference]: Finished difference Result 594 states and 737 transitions.
[2020-09-25 10:56:48,091 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-25 10:56:48,092 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-25 10:56:48,093 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 10:56:48,115 INFO  L225             Difference]: With dead ends: 594
[2020-09-25 10:56:48,115 INFO  L226             Difference]: Without dead ends: 396
[2020-09-25 10:56:48,122 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-25 10:56:48,144 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 396 states.
[2020-09-25 10:56:48,252 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 350.
[2020-09-25 10:56:48,253 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 350 states.
[2020-09-25 10:56:48,256 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 388 transitions.
[2020-09-25 10:56:48,259 INFO  L78                 Accepts]: Start accepts. Automaton has 350 states and 388 transitions. Word has length 153
[2020-09-25 10:56:48,259 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 10:56:48,260 INFO  L479      AbstractCegarLoop]: Abstraction has 350 states and 388 transitions.
[2020-09-25 10:56:48,260 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 10:56:48,260 INFO  L276                IsEmpty]: Start isEmpty. Operand 350 states and 388 transitions.
[2020-09-25 10:56:48,265 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 169
[2020-09-25 10:56:48,266 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 10:56:48,266 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]
[2020-09-25 10:56:48,266 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 10:56:48,267 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 10:56:48,267 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 10:56:48,267 INFO  L82        PathProgramCache]: Analyzing trace with hash 217466552, now seen corresponding path program 1 times
[2020-09-25 10:56:48,268 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 10:56:48,268 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1440290896]
[2020-09-25 10:56:48,268 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 10:56:48,329 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:48,391 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:49,575 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:49,576 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 201
[2020-09-25 10:56:49,576 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:49,577 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1242
[2020-09-25 10:56:49,577 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:49,577 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:49,578 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 10:56:49,578 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-25 10:56:49,578 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 77
[2020-09-25 10:56:49,579 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:49,944 WARN  L193               SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 10:56:49,946 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 10:56:49,988 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:50,035 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:50,279 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:50,280 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 10:56:50,280 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:50,280 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 288
[2020-09-25 10:56:50,281 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:50,281 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:50,281 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:50,281 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:50,281 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-25 10:56:50,282 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:50,329 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 10:56:50,330 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:50,332 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:50,335 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:50,335 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:56:50,335 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:50,336 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 10:56:50,336 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:50,336 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:50,336 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:50,336 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:50,337 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:56:50,337 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 10:56:50,338 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 10:56:50,339 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:50,340 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:50,343 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:50,343 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:56:50,343 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:50,343 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 10:56:50,343 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:50,344 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:50,344 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:50,344 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:50,344 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:56:50,345 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:50,346 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 10:56:50,347 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:50,349 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:50,356 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:50,356 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:50,356 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:50,356 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 10:56:50,357 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:50,357 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:50,357 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:50,357 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:50,357 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:56:50,358 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:50,360 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 10:56:50,360 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:50,362 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:50,364 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:50,365 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:56:50,365 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:50,365 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 10:56:50,365 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:50,365 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:50,366 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:50,366 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:50,366 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:56:50,366 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:50,379 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116
[2020-09-25 10:56:50,380 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:50,382 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:50,389 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:50,389 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 10:56:50,389 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:50,389 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 10:56:50,390 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:50,390 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:50,390 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:50,390 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:50,390 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 10:56:50,391 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:50,393 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136
[2020-09-25 10:56:50,397 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:50,399 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:50,401 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:50,401 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:50,401 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:50,402 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 10:56:50,402 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:50,402 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:50,402 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:56:50,402 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:56:50,403 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:56:50,403 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:50,406 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146
[2020-09-25 10:56:50,406 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:50,408 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:50,410 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:50,410 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:50,412 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:50,413 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 10:56:50,413 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:50,413 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:50,413 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:56:50,413 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:56:50,414 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:56:50,414 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:50,415 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156
[2020-09-25 10:56:50,416 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:50,418 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:50,420 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:50,420 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:50,420 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:50,421 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 10:56:50,421 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:50,421 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:50,421 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:56:50,421 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:56:50,422 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:56:50,422 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 10:56:50,463 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 10:56:50,464 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1440290896]
[2020-09-25 10:56:50,465 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 10:56:50,465 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 10:56:50,465 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260268395]
[2020-09-25 10:56:50,469 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 10:56:50,469 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 10:56:50,470 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 10:56:50,470 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-25 10:56:50,470 INFO  L87              Difference]: Start difference. First operand 350 states and 388 transitions. Second operand 5 states.
[2020-09-25 10:56:51,025 WARN  L193               SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 10:56:52,910 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 10:56:52,911 INFO  L93              Difference]: Finished difference Result 960 states and 1157 transitions.
[2020-09-25 10:56:52,912 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-25 10:56:52,912 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 168
[2020-09-25 10:56:52,913 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 10:56:52,921 INFO  L225             Difference]: With dead ends: 960
[2020-09-25 10:56:52,921 INFO  L226             Difference]: Without dead ends: 720
[2020-09-25 10:56:52,925 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-09-25 10:56:52,926 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 720 states.
[2020-09-25 10:56:53,037 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 591.
[2020-09-25 10:56:53,037 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 591 states.
[2020-09-25 10:56:53,041 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 673 transitions.
[2020-09-25 10:56:53,041 INFO  L78                 Accepts]: Start accepts. Automaton has 591 states and 673 transitions. Word has length 168
[2020-09-25 10:56:53,042 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 10:56:53,042 INFO  L479      AbstractCegarLoop]: Abstraction has 591 states and 673 transitions.
[2020-09-25 10:56:53,042 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 10:56:53,042 INFO  L276                IsEmpty]: Start isEmpty. Operand 591 states and 673 transitions.
[2020-09-25 10:56:53,046 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 177
[2020-09-25 10:56:53,047 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 10:56:53,047 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]
[2020-09-25 10:56:53,047 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 10:56:53,047 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 10:56:53,048 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 10:56:53,048 INFO  L82        PathProgramCache]: Analyzing trace with hash 1541185143, now seen corresponding path program 1 times
[2020-09-25 10:56:53,048 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 10:56:53,048 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1803121916]
[2020-09-25 10:56:53,049 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 10:56:53,110 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 10:56:53,118 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 10:56:53,118 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 10:56:53,123 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 10:56:53,149 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 10:56:53 BoogieIcfgContainer
[2020-09-25 10:56:53,149 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 10:56:53,152 INFO  L168              Benchmark]: Toolchain (without parser) took 19253.39 ms. Allocated memory was 139.5 MB in the beginning and 517.5 MB in the end (delta: 378.0 MB). Free memory was 99.2 MB in the beginning and 264.6 MB in the end (delta: -165.4 MB). Peak memory consumption was 212.6 MB. Max. memory is 7.1 GB.
[2020-09-25 10:56:53,153 INFO  L168              Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 139.5 MB. Free memory was 118.3 MB in the beginning and 118.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 10:56:53,154 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 670.75 ms. Allocated memory was 139.5 MB in the beginning and 201.3 MB in the end (delta: 61.9 MB). Free memory was 98.6 MB in the beginning and 170.1 MB in the end (delta: -71.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB.
[2020-09-25 10:56:53,154 INFO  L168              Benchmark]: Boogie Preprocessor took 95.57 ms. Allocated memory is still 201.3 MB. Free memory was 170.1 MB in the beginning and 165.8 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB.
[2020-09-25 10:56:53,155 INFO  L168              Benchmark]: RCFGBuilder took 1256.60 ms. Allocated memory was 201.3 MB in the beginning and 229.1 MB in the end (delta: 27.8 MB). Free memory was 165.8 MB in the beginning and 174.8 MB in the end (delta: -9.0 MB). Peak memory consumption was 89.7 MB. Max. memory is 7.1 GB.
[2020-09-25 10:56:53,156 INFO  L168              Benchmark]: TraceAbstraction took 17222.62 ms. Allocated memory was 229.1 MB in the beginning and 517.5 MB in the end (delta: 288.4 MB). Free memory was 174.8 MB in the beginning and 264.6 MB in the end (delta: -89.8 MB). Peak memory consumption was 198.5 MB. Max. memory is 7.1 GB.
[2020-09-25 10:56:53,160 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.53 ms. Allocated memory is still 139.5 MB. Free memory was 118.3 MB in the beginning and 118.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 670.75 ms. Allocated memory was 139.5 MB in the beginning and 201.3 MB in the end (delta: 61.9 MB). Free memory was 98.6 MB in the beginning and 170.1 MB in the end (delta: -71.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 95.57 ms. Allocated memory is still 201.3 MB. Free memory was 170.1 MB in the beginning and 165.8 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1256.60 ms. Allocated memory was 201.3 MB in the beginning and 229.1 MB in the end (delta: 27.8 MB). Free memory was 165.8 MB in the beginning and 174.8 MB in the end (delta: -9.0 MB). Peak memory consumption was 89.7 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 17222.62 ms. Allocated memory was 229.1 MB in the beginning and 517.5 MB in the end (delta: 288.4 MB). Free memory was 174.8 MB in the beginning and 264.6 MB in the end (delta: -89.8 MB). Peak memory consumption was 198.5 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 346]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L120]              int pumpRunning  =    0;
[L121]              int systemActive  =    1;
[L558]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L755]              int waterLevel  =    1;
[L756]              int methaneLevelCritical  =    0;
[L844]              int cleanupTimeShifts  =    4;
[L917]              int retValue_acc ;
[L918]              int tmp ;
[L922]  FCALL       select_helpers()
[L923]  FCALL       select_features()
[L924]  CALL, EXPR  valid_product()
[L380]              int retValue_acc ;
[L383]              retValue_acc = 1
[L384]              return (retValue_acc);
[L924]  RET, EXPR   valid_product()
[L924]              tmp = valid_product()
[L926]  COND TRUE   \read(tmp)
[L928]  FCALL       setup()
[L929]  CALL        runTest()
[L911]  CALL        test()
[L46]               int splverifierCounter ;
[L47]               int tmp ;
[L48]               int tmp___0 ;
[L49]               int tmp___1 ;
[L50]               int tmp___2 ;
[L53]               splverifierCounter = 0
[L55]   COND TRUE   1
[L57]   COND TRUE   splverifierCounter < 4
[L63]               tmp = __VERIFIER_nondet_int()
[L65]   COND TRUE   \read(tmp)
[L67]   CALL        waterRise()
[L773]  COND TRUE   waterLevel < 2
[L774]              waterLevel = waterLevel + 1
[L67]   RET         waterRise()
[L73]               tmp___0 = __VERIFIER_nondet_int()
[L75]   COND FALSE  !(\read(tmp___0))
[L83]               tmp___2 = __VERIFIER_nondet_int()
[L85]   COND TRUE   \read(tmp___2)
[L100]  CALL        timeShift()
[L128]  COND FALSE  !(\read(pumpRunning))
[L135]  COND TRUE   \read(systemActive)
[L137]  CALL        processEnvironment()
[L157]              int tmp ;
[L160]  COND FALSE  !(\read(pumpRunning))
[L175]  FCALL       processEnvironment__wrappee__base()
[L137]  RET         processEnvironment()
[L143]  CALL        __utac_acc__Specification3_spec__1()
[L309]              int tmp ;
[L310]              int tmp___0 ;
[L311]              int tmp___1 ;
[L315]  CALL, EXPR  isMethaneLevelCritical()
[L794]              int retValue_acc ;
[L797]              retValue_acc = methaneLevelCritical
[L798]              return (retValue_acc);
[L315]  RET, EXPR   isMethaneLevelCritical()
[L315]              tmp = isMethaneLevelCritical()
[L317]  COND FALSE  !(\read(tmp))
[L321]  CALL, EXPR  getWaterLevel()
[L826]              int retValue_acc ;
[L829]              retValue_acc = waterLevel
[L830]              return (retValue_acc);
[L321]  RET, EXPR   getWaterLevel()
[L321]              tmp___0 = getWaterLevel()
[L323]  COND TRUE   tmp___0 == 2
[L325]  CALL, EXPR  isPumpRunning()
[L227]              int retValue_acc ;
[L230]              retValue_acc = pumpRunning
[L231]              return (retValue_acc);
[L325]  RET, EXPR   isPumpRunning()
[L325]              tmp___1 = isPumpRunning()
[L327]  COND FALSE  !(\read(tmp___1))
[L331]  CALL        __automaton_fail()
[L346]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 39 procedures, 624 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 8.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 481 SDtfs, 843 SDslu, 723 SDs, 0 SdLazy, 1645 SolverSat, 273 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=591occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 175 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 8.1s InterpolantComputationTime, 497 NumberOfCodeBlocks, 497 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 319 ConstructedInterpolants, 0 QuantifiedInterpolants, 138354 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...