/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=BIGGEST --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_product19.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 20:12:58,240 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 20:12:58,243 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 20:12:58,269 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 20:12:58,270 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 20:12:58,271 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 20:12:58,272 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 20:12:58,274 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 20:12:58,276 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 20:12:58,277 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 20:12:58,278 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 20:12:58,279 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 20:12:58,279 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 20:12:58,281 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 20:12:58,282 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 20:12:58,283 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 20:12:58,284 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 20:12:58,285 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 20:12:58,287 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 20:12:58,289 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 20:12:58,293 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 20:12:58,294 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 20:12:58,295 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 20:12:58,300 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 20:12:58,302 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 20:12:58,303 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 20:12:58,306 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 20:12:58,307 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 20:12:58,307 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 20:12:58,311 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 20:12:58,311 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 20:12:58,312 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 20:12:58,314 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 20:12:58,315 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 20:12:58,317 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 20:12:58,317 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 20:12:58,318 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 20:12:58,318 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 20:12:58,318 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 20:12:58,329 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 20:12:58,330 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 20:12:58,331 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
[2020-09-24 20:12:58,388 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 20:12:58,388 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 20:12:58,393 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 20:12:58,393 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 20:12:58,393 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 20:12:58,394 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 20:12:58,394 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 20:12:58,394 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 20:12:58,394 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 20:12:58,394 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 20:12:58,394 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 20:12:58,394 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 20:12:58,396 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 20:12:58,396 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 20:12:58,396 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 20:12:58,396 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 20:12:58,397 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 20:12:58,397 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 20:12:58,397 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 20:12:58,397 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 20:12:58,397 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 20:12:58,398 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 20:12:58,399 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 20:12:58,399 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 20:12:58,400 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 20:12:58,400 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 20:12:58,400 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 20:12:58,400 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 20:12:58,400 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 20:12:58,400 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;
[2020-09-24 20:12:58,876 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 20:12:58,896 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 20:12:58,900 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 20:12:58,902 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 20:12:58,903 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 20:12:58,904 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product19.cil.c
[2020-09-24 20:12:59,020 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e08ad85ea/a3b3bffc370748f38e5a11b96fa8fb43/FLAG8c5d6f473
[2020-09-24 20:12:59,611 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 20:12:59,612 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product19.cil.c
[2020-09-24 20:12:59,629 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e08ad85ea/a3b3bffc370748f38e5a11b96fa8fb43/FLAG8c5d6f473
[2020-09-24 20:12:59,894 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e08ad85ea/a3b3bffc370748f38e5a11b96fa8fb43
[2020-09-24 20:12:59,907 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 20:12:59,912 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 20:12:59,913 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 20:12:59,913 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 20:12:59,917 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 20:12:59,919 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:12:59" (1/1) ...
[2020-09-24 20:12:59,923 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:59, skipping insertion in model container
[2020-09-24 20:12:59,924 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:12:59" (1/1) ...
[2020-09-24 20:12:59,933 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 20:13:00,012 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 20:13:00,463 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 20:13:00,577 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 20:13:00,683 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 20:13:00,743 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 20:13:00,745 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:00 WrapperNode
[2020-09-24 20:13:00,745 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 20:13:00,746 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 20:13:00,747 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 20:13:00,747 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 20:13:00,766 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:00" (1/1) ...
[2020-09-24 20:13:00,768 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:00" (1/1) ...
[2020-09-24 20:13:00,809 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:00" (1/1) ...
[2020-09-24 20:13:00,809 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:00" (1/1) ...
[2020-09-24 20:13:00,871 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:00" (1/1) ...
[2020-09-24 20:13:00,892 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:00" (1/1) ...
[2020-09-24 20:13:00,901 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:00" (1/1) ...
[2020-09-24 20:13:00,911 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 20:13:00,912 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 20:13:00,912 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 20:13:00,912 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 20:13:00,919 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:00" (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
[2020-09-24 20:13:01,026 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 20:13:01,026 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 20:13:01,026 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 20:13:01,026 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 20:13:01,026 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 20:13:01,026 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 20:13:01,026 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 20:13:01,027 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 20:13:01,027 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-24 20:13:01,027 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 20:13:01,027 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 20:13:01,027 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 20:13:01,028 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 20:13:01,028 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 20:13:01,028 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 20:13:01,028 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 20:13:01,028 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 20:13:01,028 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 20:13:01,028 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 20:13:01,029 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 20:13:01,029 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 20:13:01,029 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 20:13:01,029 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 20:13:01,029 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 20:13:01,030 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 20:13:01,030 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 20:13:01,030 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-24 20:13:01,030 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 20:13:01,030 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 20:13:01,030 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 20:13:01,031 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 20:13:01,031 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 20:13:01,031 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 20:13:01,031 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 20:13:01,031 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 20:13:01,032 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 20:13:01,032 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-24 20:13:01,032 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-24 20:13:01,032 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 20:13:01,032 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 20:13:01,032 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 20:13:01,032 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 20:13:01,032 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 20:13:01,032 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 20:13:01,033 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 20:13:01,033 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 20:13:01,033 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 20:13:01,033 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 20:13:01,033 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 20:13:01,033 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-24 20:13:01,033 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 20:13:01,033 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 20:13:01,034 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 20:13:01,034 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 20:13:01,034 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 20:13:01,034 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 20:13:01,034 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 20:13:01,034 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 20:13:01,035 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 20:13:01,035 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 20:13:01,035 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 20:13:01,035 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 20:13:01,035 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 20:13:01,035 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 20:13:01,035 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 20:13:01,035 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 20:13:01,036 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 20:13:01,036 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 20:13:01,036 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 20:13:01,036 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 20:13:01,036 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 20:13:01,036 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 20:13:01,036 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 20:13:01,037 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 20:13:01,037 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 20:13:01,037 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 20:13:01,037 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 20:13:01,037 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 20:13:01,037 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 20:13:01,038 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-24 20:13:01,038 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-24 20:13:01,038 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 20:13:01,038 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 20:13:01,038 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 20:13:01,039 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 20:13:01,039 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-24 20:13:01,039 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 20:13:01,039 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 20:13:01,039 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 20:13:01,039 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 20:13:02,291 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 20:13:02,291 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 20:13:02,299 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:13:02 BoogieIcfgContainer
[2020-09-24 20:13:02,300 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 20:13:02,301 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 20:13:02,301 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 20:13:02,305 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 20:13:02,306 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:12:59" (1/3) ...
[2020-09-24 20:13:02,307 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2245c33e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:13:02, skipping insertion in model container
[2020-09-24 20:13:02,307 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:13:00" (2/3) ...
[2020-09-24 20:13:02,307 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2245c33e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:13:02, skipping insertion in model container
[2020-09-24 20:13:02,308 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:13:02" (3/3) ...
[2020-09-24 20:13:02,310 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product19.cil.c
[2020-09-24 20:13:02,324 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 20:13:02,336 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 20:13:02,360 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 20:13:02,396 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 20:13:02,397 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 20:13:02,397 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 20:13:02,397 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 20:13:02,397 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 20:13:02,397 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 20:13:02,398 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 20:13:02,398 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 20:13:02,431 INFO  L276                IsEmpty]: Start isEmpty. Operand 298 states.
[2020-09-24 20:13:02,450 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-24 20:13:02,451 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 20:13:02,452 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]
[2020-09-24 20:13:02,453 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 20:13:02,461 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 20:13:02,462 INFO  L82        PathProgramCache]: Analyzing trace with hash 2041023672, now seen corresponding path program 1 times
[2020-09-24 20:13:02,476 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 20:13:02,476 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2039698924]
[2020-09-24 20:13:02,477 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 20:13:02,804 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:02,995 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:03,241 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:04,905 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:07,879 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:07,879 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-24 20:13:07,879 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 20:13:07,880 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5064
[2020-09-24 20:13:07,885 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:07,885 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 20:13:07,886 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 79
[2020-09-24 20:13:07,886 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 91
[2020-09-24 20:13:07,886 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 6
[2020-09-24 20:13:08,379 WARN  L193               SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 20:13:08,383 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 20:13:08,440 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:08,488 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:08,725 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:08,726 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 20:13:08,727 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:08,727 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 283
[2020-09-24 20:13:08,727 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:08,727 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:13:08,728 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:08,728 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-24 20:13:08,728 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:13:08,833 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 20:13:08,834 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:08,836 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:08,841 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:08,841 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:13:08,841 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:08,841 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 20:13:08,842 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:08,842 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:13:08,842 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:08,842 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 20:13:08,842 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:13:08,847 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 20:13:08,849 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:08,852 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:08,858 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:08,858 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:13:08,859 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:08,859 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 20:13:08,860 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:08,860 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:13:08,860 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:08,861 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 20:13:08,861 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:13:08,872 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 20:13:08,874 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:08,878 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:08,894 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:08,894 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:13:08,894 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:08,894 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 18
[2020-09-24 20:13:08,895 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:08,895 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:13:08,895 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:08,895 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 20:13:08,896 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:13:08,898 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 20:13:08,900 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:08,903 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:08,911 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:08,912 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:13:08,912 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:08,912 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-24 20:13:08,913 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:08,913 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:13:08,914 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:08,914 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 20:13:08,914 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:13:08,922 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 20:13:08,924 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:08,926 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:08,931 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:08,932 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:13:08,932 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:08,932 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 20:13:08,933 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:08,933 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:13:08,934 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:08,934 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 20:13:08,937 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-24 20:13:08,939 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 20:13:08,941 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:08,945 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:08,959 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:08,960 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:13:08,960 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:08,961 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 17
[2020-09-24 20:13:08,961 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:08,961 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 20:13:08,962 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:08,962 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 20:13:08,962 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:13:08,997 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-24 20:13:08,999 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:09,003 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:09,006 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:09,006 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:13:09,007 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:09,007 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 20:13:09,007 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:09,008 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:13:09,008 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 20:13:09,009 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:13:09,009 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:13:09,110 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 20:13:09,111 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2039698924]
[2020-09-24 20:13:09,113 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 20:13:09,113 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-24 20:13:09,114 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656811498]
[2020-09-24 20:13:09,125 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-24 20:13:09,125 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 20:13:09,142 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-24 20:13:09,144 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-24 20:13:09,147 INFO  L87              Difference]: Start difference. First operand 298 states. Second operand 8 states.
[2020-09-24 20:13:09,849 WARN  L193               SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 20:13:11,447 WARN  L193               SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 20:13:11,823 WARN  L193               SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 20:13:12,230 WARN  L193               SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 20:13:12,689 WARN  L193               SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 20:13:13,025 WARN  L193               SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 20:13:13,613 WARN  L193               SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 20:13:13,947 WARN  L193               SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 20:13:15,150 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 20:13:15,150 INFO  L93              Difference]: Finished difference Result 594 states and 737 transitions.
[2020-09-24 20:13:15,153 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-24 20:13:15,155 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-24 20:13:15,157 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 20:13:15,179 INFO  L225             Difference]: With dead ends: 594
[2020-09-24 20:13:15,179 INFO  L226             Difference]: Without dead ends: 396
[2020-09-24 20:13:15,186 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-24 20:13:15,206 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 396 states.
[2020-09-24 20:13:15,316 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 350.
[2020-09-24 20:13:15,317 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 350 states.
[2020-09-24 20:13:15,320 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 388 transitions.
[2020-09-24 20:13:15,323 INFO  L78                 Accepts]: Start accepts. Automaton has 350 states and 388 transitions. Word has length 153
[2020-09-24 20:13:15,324 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 20:13:15,324 INFO  L479      AbstractCegarLoop]: Abstraction has 350 states and 388 transitions.
[2020-09-24 20:13:15,324 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-24 20:13:15,324 INFO  L276                IsEmpty]: Start isEmpty. Operand 350 states and 388 transitions.
[2020-09-24 20:13:15,330 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 169
[2020-09-24 20:13:15,331 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 20:13:15,331 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]
[2020-09-24 20:13:15,331 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 20:13:15,332 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 20:13:15,332 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 20:13:15,332 INFO  L82        PathProgramCache]: Analyzing trace with hash -1490419539, now seen corresponding path program 1 times
[2020-09-24 20:13:15,333 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 20:13:15,333 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2024828209]
[2020-09-24 20:13:15,333 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 20:13:15,393 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:15,463 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:16,753 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:16,754 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 201
[2020-09-24 20:13:16,754 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:16,754 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1358
[2020-09-24 20:13:16,755 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:16,755 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-24 20:13:16,755 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 82
[2020-09-24 20:13:16,756 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 73
[2020-09-24 20:13:16,756 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:13:17,056 WARN  L193               SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 20:13:17,057 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 20:13:17,092 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:17,131 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:17,373 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:17,374 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 20:13:17,374 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:17,374 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 280
[2020-09-24 20:13:17,374 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:17,375 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:13:17,375 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:17,375 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 78
[2020-09-24 20:13:17,375 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:13:17,429 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 20:13:17,431 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:17,434 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:17,438 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:17,439 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:13:17,439 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:17,439 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 20:13:17,439 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:17,439 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:13:17,440 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:17,440 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 20:13:17,440 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:13:17,441 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 20:13:17,442 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:17,443 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:17,448 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:17,448 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:13:17,448 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:17,449 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 20:13:17,449 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:17,449 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:13:17,450 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:17,450 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 20:13:17,450 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:13:17,453 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 20:13:17,455 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:17,457 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:17,466 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:17,467 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:13:17,467 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:17,467 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-24 20:13:17,468 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:17,468 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:13:17,468 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:17,469 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 20:13:17,469 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:13:17,471 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 20:13:17,472 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:17,474 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:17,477 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:17,477 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:13:17,477 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:17,477 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 20:13:17,478 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:17,478 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:13:17,478 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:17,478 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 20:13:17,479 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:13:17,487 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116
[2020-09-24 20:13:17,488 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:17,490 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:17,496 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:17,496 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 20:13:17,496 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:17,496 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 20:13:17,497 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:17,497 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:13:17,497 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:13:17,497 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 20:13:17,497 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:13:17,501 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136
[2020-09-24 20:13:17,501 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:17,564 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:17,565 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:17,565 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:13:17,565 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:17,566 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 20:13:17,566 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:17,566 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:13:17,566 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 20:13:17,566 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:13:17,567 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:13:17,568 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146
[2020-09-24 20:13:17,569 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:17,570 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:17,571 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:17,571 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:13:17,571 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:17,571 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 20:13:17,571 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:17,573 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:13:17,573 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 20:13:17,573 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:13:17,573 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:13:17,575 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156
[2020-09-24 20:13:17,576 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:13:17,577 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:13:17,578 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:13:17,578 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:13:17,579 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:13:17,579 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 20:13:17,579 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:13:17,579 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:13:17,579 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 20:13:17,580 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:13:17,580 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:13:17,616 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 20:13:17,617 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2024828209]
[2020-09-24 20:13:17,617 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 20:13:17,617 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-24 20:13:17,617 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464615220]
[2020-09-24 20:13:17,621 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-24 20:13:17,622 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 20:13:17,622 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-24 20:13:17,623 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-24 20:13:17,623 INFO  L87              Difference]: Start difference. First operand 350 states and 388 transitions. Second operand 5 states.
[2020-09-24 20:13:18,115 WARN  L193               SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 20:13:20,281 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 20:13:20,282 INFO  L93              Difference]: Finished difference Result 960 states and 1157 transitions.
[2020-09-24 20:13:20,282 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-24 20:13:20,283 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 168
[2020-09-24 20:13:20,284 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 20:13:20,293 INFO  L225             Difference]: With dead ends: 960
[2020-09-24 20:13:20,293 INFO  L226             Difference]: Without dead ends: 720
[2020-09-24 20:13:20,297 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-09-24 20:13:20,299 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 720 states.
[2020-09-24 20:13:20,411 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 591.
[2020-09-24 20:13:20,412 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 591 states.
[2020-09-24 20:13:20,416 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 673 transitions.
[2020-09-24 20:13:20,416 INFO  L78                 Accepts]: Start accepts. Automaton has 591 states and 673 transitions. Word has length 168
[2020-09-24 20:13:20,417 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 20:13:20,417 INFO  L479      AbstractCegarLoop]: Abstraction has 591 states and 673 transitions.
[2020-09-24 20:13:20,417 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-24 20:13:20,417 INFO  L276                IsEmpty]: Start isEmpty. Operand 591 states and 673 transitions.
[2020-09-24 20:13:20,421 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 177
[2020-09-24 20:13:20,422 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 20:13:20,422 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]
[2020-09-24 20:13:20,422 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 20:13:20,423 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 20:13:20,423 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 20:13:20,423 INFO  L82        PathProgramCache]: Analyzing trace with hash 466047794, now seen corresponding path program 1 times
[2020-09-24 20:13:20,423 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 20:13:20,424 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [604837928]
[2020-09-24 20:13:20,424 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 20:13:20,487 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-24 20:13:20,495 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-24 20:13:20,495 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 20:13:20,501 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 20:13:20,527 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 08:13:20 BoogieIcfgContainer
[2020-09-24 20:13:20,527 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 20:13:20,530 INFO  L168              Benchmark]: Toolchain (without parser) took 20620.96 ms. Allocated memory was 142.1 MB in the beginning and 462.9 MB in the end (delta: 320.9 MB). Free memory was 103.4 MB in the beginning and 148.0 MB in the end (delta: -44.7 MB). Peak memory consumption was 276.2 MB. Max. memory is 7.1 GB.
[2020-09-24 20:13:20,530 INFO  L168              Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 142.1 MB. Free memory was 122.4 MB in the beginning and 122.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-24 20:13:20,531 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 833.32 ms. Allocated memory was 142.1 MB in the beginning and 204.5 MB in the end (delta: 62.4 MB). Free memory was 102.7 MB in the beginning and 174.5 MB in the end (delta: -71.8 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB.
[2020-09-24 20:13:20,532 INFO  L168              Benchmark]: Boogie Preprocessor took 164.77 ms. Allocated memory is still 204.5 MB. Free memory was 174.5 MB in the beginning and 170.6 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB.
[2020-09-24 20:13:20,533 INFO  L168              Benchmark]: RCFGBuilder took 1388.28 ms. Allocated memory was 204.5 MB in the beginning and 234.9 MB in the end (delta: 30.4 MB). Free memory was 170.6 MB in the beginning and 174.5 MB in the end (delta: -3.8 MB). Peak memory consumption was 80.7 MB. Max. memory is 7.1 GB.
[2020-09-24 20:13:20,534 INFO  L168              Benchmark]: TraceAbstraction took 18226.28 ms. Allocated memory was 234.9 MB in the beginning and 462.9 MB in the end (delta: 228.1 MB). Free memory was 174.5 MB in the beginning and 148.0 MB in the end (delta: 26.5 MB). Peak memory consumption was 254.5 MB. Max. memory is 7.1 GB.
[2020-09-24 20:13:20,538 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.29 ms. Allocated memory is still 142.1 MB. Free memory was 122.4 MB in the beginning and 122.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 833.32 ms. Allocated memory was 142.1 MB in the beginning and 204.5 MB in the end (delta: 62.4 MB). Free memory was 102.7 MB in the beginning and 174.5 MB in the end (delta: -71.8 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 164.77 ms. Allocated memory is still 204.5 MB. Free memory was 174.5 MB in the beginning and 170.6 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1388.28 ms. Allocated memory was 204.5 MB in the beginning and 234.9 MB in the end (delta: 30.4 MB). Free memory was 170.6 MB in the beginning and 174.5 MB in the end (delta: -3.8 MB). Peak memory consumption was 80.7 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 18226.28 ms. Allocated memory was 234.9 MB in the beginning and 462.9 MB in the end (delta: 228.1 MB). Free memory was 174.5 MB in the beginning and 148.0 MB in the end (delta: 26.5 MB). Peak memory consumption was 254.5 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L293]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L490]              int cleanupTimeShifts  =    4;
[L594]              int waterLevel  =    1;
[L595]              int methaneLevelCritical  =    0;
[L753]              int pumpRunning  =    0;
[L754]              int systemActive  =    1;
[L568]              int retValue_acc ;
[L569]              int tmp ;
[L573]  FCALL       select_helpers()
[L574]  FCALL       select_features()
[L575]  CALL, EXPR  valid_product()
[L78]               int retValue_acc ;
[L81]               retValue_acc = 1
[L82]               return (retValue_acc);
[L575]  RET, EXPR   valid_product()
[L575]              tmp = valid_product()
[L577]  COND TRUE   \read(tmp)
[L579]  FCALL       setup()
[L580]  CALL        runTest()
[L562]  CALL        test()
[L685]              int splverifierCounter ;
[L686]              int tmp ;
[L687]              int tmp___0 ;
[L688]              int tmp___1 ;
[L689]              int tmp___2 ;
[L692]              splverifierCounter = 0
[L694]  COND TRUE   1
[L696]  COND TRUE   splverifierCounter < 4
[L702]              tmp = __VERIFIER_nondet_int()
[L704]  COND TRUE   \read(tmp)
[L706]  CALL        waterRise()
[L612]  COND TRUE   waterLevel < 2
[L613]              waterLevel = waterLevel + 1
[L706]  RET         waterRise()
[L712]              tmp___0 = __VERIFIER_nondet_int()
[L714]  COND FALSE  !(\read(tmp___0))
[L722]              tmp___2 = __VERIFIER_nondet_int()
[L724]  COND TRUE   \read(tmp___2)
[L739]  CALL        timeShift()
[L760]  COND FALSE  !(\read(pumpRunning))
[L767]  COND TRUE   \read(systemActive)
[L769]  CALL        processEnvironment()
[L789]              int tmp ;
[L792]  COND FALSE  !(\read(pumpRunning))
[L807]  FCALL       processEnvironment__wrappee__base()
[L769]  RET         processEnvironment()
[L775]  CALL        __utac_acc__Specification3_spec__1()
[L91]               int tmp ;
[L92]               int tmp___0 ;
[L93]               int tmp___1 ;
[L97]   CALL, EXPR  isMethaneLevelCritical()
[L633]              int retValue_acc ;
[L636]              retValue_acc = methaneLevelCritical
[L637]              return (retValue_acc);
[L97]   RET, EXPR   isMethaneLevelCritical()
[L97]               tmp = isMethaneLevelCritical()
[L99]   COND FALSE  !(\read(tmp))
[L103]  CALL, EXPR  getWaterLevel()
[L665]              int retValue_acc ;
[L668]              retValue_acc = waterLevel
[L669]              return (retValue_acc);
[L103]  RET, EXPR   getWaterLevel()
[L103]              tmp___0 = getWaterLevel()
[L105]  COND TRUE   tmp___0 == 2
[L107]  CALL, EXPR  isPumpRunning()
[L841]              int retValue_acc ;
[L844]              retValue_acc = pumpRunning
[L845]              return (retValue_acc);
[L107]  RET, EXPR   isPumpRunning()
[L107]              tmp___1 = isPumpRunning()
[L109]  COND FALSE  !(\read(tmp___1))
[L113]  CALL        __automaton_fail()
[L44]               __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 38 procedures, 615 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 8.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 483 SDtfs, 842 SDslu, 729 SDs, 0 SdLazy, 1651 SolverSat, 272 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 3.2s 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, 8.3s InterpolantComputationTime, 497 NumberOfCodeBlocks, 497 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 319 ConstructedInterpolants, 0 QuantifiedInterpolants, 137322 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...