/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=SHALLOWEST --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_product44.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 23:36:03,720 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 23:36:03,724 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 23:36:03,751 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 23:36:03,752 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 23:36:03,753 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 23:36:03,754 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 23:36:03,757 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 23:36:03,759 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 23:36:03,760 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 23:36:03,761 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 23:36:03,762 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 23:36:03,763 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 23:36:03,764 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 23:36:03,765 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 23:36:03,767 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 23:36:03,768 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 23:36:03,769 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 23:36:03,771 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 23:36:03,776 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 23:36:03,778 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 23:36:03,780 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 23:36:03,786 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 23:36:03,787 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 23:36:03,793 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 23:36:03,793 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 23:36:03,793 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 23:36:03,796 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 23:36:03,796 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 23:36:03,800 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 23:36:03,800 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 23:36:03,801 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 23:36:03,803 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 23:36:03,804 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 23:36:03,807 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 23:36:03,807 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 23:36:03,808 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 23:36:03,809 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 23:36:03,809 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 23:36:03,811 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 23:36:03,813 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 23:36:03,814 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 23:36:03,877 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 23:36:03,877 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 23:36:03,882 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 23:36:03,882 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 23:36:03,882 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 23:36:03,883 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 23:36:03,883 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 23:36:03,883 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 23:36:03,883 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 23:36:03,883 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 23:36:03,884 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 23:36:03,884 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 23:36:03,884 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 23:36:03,884 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 23:36:03,884 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 23:36:03,885 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 23:36:03,885 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 23:36:03,885 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 23:36:03,885 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 23:36:03,885 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 23:36:03,886 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 23:36:03,886 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 23:36:03,886 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 23:36:03,886 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 23:36:03,887 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 23:36:03,887 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 23:36:03,887 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 23:36:03,887 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 23:36:03,887 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 23:36:03,887 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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;log-additional-information=true;
[2020-09-24 23:36:04,349 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 23:36:04,367 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 23:36:04,372 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 23:36:04,374 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 23:36:04,374 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 23:36:04,376 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product44.cil.c
[2020-09-24 23:36:04,462 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/677f2968f/286dab5fa9af4af99c45d989a854b4c0/FLAGe1d15a97a
[2020-09-24 23:36:05,088 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 23:36:05,089 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product44.cil.c
[2020-09-24 23:36:05,108 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/677f2968f/286dab5fa9af4af99c45d989a854b4c0/FLAGe1d15a97a
[2020-09-24 23:36:05,351 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/677f2968f/286dab5fa9af4af99c45d989a854b4c0
[2020-09-24 23:36:05,364 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 23:36:05,369 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 23:36:05,370 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 23:36:05,371 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 23:36:05,375 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 23:36:05,376 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:36:05" (1/1) ...
[2020-09-24 23:36:05,382 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56344ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:05, skipping insertion in model container
[2020-09-24 23:36:05,382 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:36:05" (1/1) ...
[2020-09-24 23:36:05,393 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 23:36:05,474 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 23:36:05,932 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 23:36:05,947 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 23:36:06,051 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 23:36:06,095 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 23:36:06,096 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:06 WrapperNode
[2020-09-24 23:36:06,096 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 23:36:06,097 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 23:36:06,101 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 23:36:06,101 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 23:36:06,118 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:06" (1/1) ...
[2020-09-24 23:36:06,119 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:06" (1/1) ...
[2020-09-24 23:36:06,139 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:06" (1/1) ...
[2020-09-24 23:36:06,140 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:06" (1/1) ...
[2020-09-24 23:36:06,174 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:06" (1/1) ...
[2020-09-24 23:36:06,186 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:06" (1/1) ...
[2020-09-24 23:36:06,192 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:06" (1/1) ...
[2020-09-24 23:36:06,200 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 23:36:06,200 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 23:36:06,201 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 23:36:06,201 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 23:36:06,202 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:06" (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 23:36:06,284 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 23:36:06,284 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 23:36:06,285 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 23:36:06,285 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 23:36:06,285 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 23:36:06,285 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 23:36:06,285 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 23:36:06,286 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 23:36:06,287 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-24 23:36:06,287 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 23:36:06,287 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 23:36:06,287 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 23:36:06,288 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 23:36:06,288 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 23:36:06,288 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 23:36:06,289 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-24 23:36:06,289 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 23:36:06,289 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 23:36:06,290 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 23:36:06,290 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 23:36:06,291 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 23:36:06,291 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 23:36:06,291 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 23:36:06,291 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 23:36:06,292 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 23:36:06,294 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 23:36:06,294 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 23:36:06,294 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 23:36:06,295 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 23:36:06,295 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 23:36:06,296 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor
[2020-09-24 23:36:06,296 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 23:36:06,296 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 23:36:06,296 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 23:36:06,296 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 23:36:06,296 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 23:36:06,296 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-24 23:36:06,297 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-24 23:36:06,297 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-24 23:36:06,297 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 23:36:06,299 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 23:36:06,299 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 23:36:06,299 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 23:36:06,299 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 23:36:06,300 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 23:36:06,301 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 23:36:06,301 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 23:36:06,301 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 23:36:06,301 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 23:36:06,302 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 23:36:06,302 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 23:36:06,302 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 23:36:06,302 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 23:36:06,302 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 23:36:06,304 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 23:36:06,304 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 23:36:06,304 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 23:36:06,304 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 23:36:06,304 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 23:36:06,304 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 23:36:06,305 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-24 23:36:06,305 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 23:36:06,305 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 23:36:06,305 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-24 23:36:06,305 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 23:36:06,306 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 23:36:06,306 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 23:36:06,306 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 23:36:06,306 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 23:36:06,306 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 23:36:06,307 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 23:36:06,308 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 23:36:06,309 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 23:36:06,309 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 23:36:06,309 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 23:36:06,309 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 23:36:06,309 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 23:36:06,309 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 23:36:06,310 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 23:36:06,310 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 23:36:06,310 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 23:36:06,310 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 23:36:06,310 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 23:36:06,310 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 23:36:06,311 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-24 23:36:06,311 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-24 23:36:06,311 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 23:36:06,311 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 23:36:06,311 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-24 23:36:06,311 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor
[2020-09-24 23:36:06,311 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 23:36:06,312 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 23:36:06,312 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 23:36:06,312 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 23:36:07,499 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 23:36:07,499 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 23:36:07,512 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:36:07 BoogieIcfgContainer
[2020-09-24 23:36:07,512 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 23:36:07,514 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 23:36:07,515 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 23:36:07,518 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 23:36:07,519 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:36:05" (1/3) ...
[2020-09-24 23:36:07,520 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d02ea68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:36:07, skipping insertion in model container
[2020-09-24 23:36:07,521 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:06" (2/3) ...
[2020-09-24 23:36:07,521 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d02ea68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:36:07, skipping insertion in model container
[2020-09-24 23:36:07,521 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:36:07" (3/3) ...
[2020-09-24 23:36:07,524 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product44.cil.c
[2020-09-24 23:36:07,537 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 23:36:07,552 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 23:36:07,576 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 23:36:07,625 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 23:36:07,625 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 23:36:07,625 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 23:36:07,626 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 23:36:07,626 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 23:36:07,626 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 23:36:07,627 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 23:36:07,627 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 23:36:07,668 INFO  L276                IsEmpty]: Start isEmpty. Operand 319 states.
[2020-09-24 23:36:07,705 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-24 23:36:07,705 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 23:36:07,706 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 23:36:07,708 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 23:36:07,718 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 23:36:07,719 INFO  L82        PathProgramCache]: Analyzing trace with hash -266008754, now seen corresponding path program 1 times
[2020-09-24 23:36:07,732 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 23:36:07,732 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1840652035]
[2020-09-24 23:36:07,734 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 23:36:08,079 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:36:08,297 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:36:08,458 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:36:09,932 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:36:13,103 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:36:13,104 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-24 23:36:13,104 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 23:36:13,105 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5011
[2020-09-24 23:36:13,108 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:36:13,108 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 23:36:13,108 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-24 23:36:13,109 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 92
[2020-09-24 23:36:13,109 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-24 23:36:13,605 WARN  L193               SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 23:36:13,607 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 23:36:13,649 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:36:13,694 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:36:13,947 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:36:13,948 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 23:36:13,948 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:36:13,948 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 297
[2020-09-24 23:36:13,949 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:36:13,949 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:36:13,949 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:36:13,949 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-24 23:36:13,949 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:36:14,021 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 23:36:14,022 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:36:14,024 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:36:14,081 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:36:14,082 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 23:36:14,084 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:36:14,084 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 58
[2020-09-24 23:36:14,085 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:36:14,085 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:36:14,086 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:36:14,086 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 23:36:14,086 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 23:36:14,094 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 23:36:14,096 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:36:14,097 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:36:14,102 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:36:14,102 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 23:36:14,102 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:36:14,102 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 23:36:14,103 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:36:14,103 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:36:14,103 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:36:14,103 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 23:36:14,104 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 23:36:14,106 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 23:36:14,107 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:36:14,110 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:36:14,120 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:36:14,121 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 23:36:14,121 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:36:14,122 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-24 23:36:14,122 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:36:14,122 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:36:14,123 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:36:14,123 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 23:36:14,123 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 23:36:14,126 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 23:36:14,127 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:36:14,129 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:36:14,133 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:36:14,133 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 23:36:14,133 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:36:14,134 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 23:36:14,134 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:36:14,134 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:36:14,135 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:36:14,135 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 23:36:14,136 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 23:36:14,138 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 23:36:14,139 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:36:14,141 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:36:14,146 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:36:14,146 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 23:36:14,147 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:36:14,147 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 23:36:14,147 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:36:14,148 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:36:14,148 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:36:14,148 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 23:36:14,148 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 23:36:14,151 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 23:36:14,153 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:36:14,155 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:36:14,168 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:36:14,168 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 23:36:14,169 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:36:14,169 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 14
[2020-09-24 23:36:14,169 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:36:14,170 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 23:36:14,170 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:36:14,171 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 23:36:14,171 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 23:36:14,206 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-24 23:36:14,207 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:36:14,209 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:36:14,211 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:36:14,212 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 23:36:14,212 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:36:14,212 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 23:36:14,213 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:36:14,213 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 23:36:14,213 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 23:36:14,214 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 23:36:14,214 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 23:36:14,264 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 23:36:14,265 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1840652035]
[2020-09-24 23:36:14,268 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 23:36:14,269 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-24 23:36:14,270 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246896135]
[2020-09-24 23:36:14,278 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-24 23:36:14,278 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 23:36:14,301 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-24 23:36:14,303 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-24 23:36:14,307 INFO  L87              Difference]: Start difference. First operand 319 states. Second operand 8 states.
[2020-09-24 23:36:14,946 WARN  L193               SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 23:36:16,556 WARN  L193               SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 23:36:16,907 WARN  L193               SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 23:36:17,229 WARN  L193               SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 23:36:17,652 WARN  L193               SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 23:36:17,990 WARN  L193               SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 23:36:18,617 WARN  L193               SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 23:36:18,966 WARN  L193               SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 23:36:20,514 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 23:36:20,514 INFO  L93              Difference]: Finished difference Result 676 states and 836 transitions.
[2020-09-24 23:36:20,517 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-24 23:36:20,518 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-24 23:36:20,519 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 23:36:20,551 INFO  L225             Difference]: With dead ends: 676
[2020-09-24 23:36:20,551 INFO  L226             Difference]: Without dead ends: 451
[2020-09-24 23:36:20,559 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
[2020-09-24 23:36:20,578 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 451 states.
[2020-09-24 23:36:20,744 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 400.
[2020-09-24 23:36:20,745 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 400 states.
[2020-09-24 23:36:20,748 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 444 transitions.
[2020-09-24 23:36:20,751 INFO  L78                 Accepts]: Start accepts. Automaton has 400 states and 444 transitions. Word has length 153
[2020-09-24 23:36:20,752 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 23:36:20,752 INFO  L479      AbstractCegarLoop]: Abstraction has 400 states and 444 transitions.
[2020-09-24 23:36:20,752 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-24 23:36:20,753 INFO  L276                IsEmpty]: Start isEmpty. Operand 400 states and 444 transitions.
[2020-09-24 23:36:20,758 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 173
[2020-09-24 23:36:20,758 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 23:36:20,759 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]
[2020-09-24 23:36:20,759 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 23:36:20,759 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 23:36:20,760 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 23:36:20,760 INFO  L82        PathProgramCache]: Analyzing trace with hash 1299075963, now seen corresponding path program 1 times
[2020-09-24 23:36:20,760 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 23:36:20,760 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1903352058]
[2020-09-24 23:36:20,761 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 23:36:20,819 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:36:20,880 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:36:21,236 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:36:21,237 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 207
[2020-09-24 23:36:21,237 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:36:21,237 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 414
[2020-09-24 23:36:21,238 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:36:21,238 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:36:21,239 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 153
[2020-09-24 23:36:21,239 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-24 23:36:21,239 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 23:36:21,626 WARN  L193               SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 23:36:21,627 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 23:36:21,635 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:36:21,648 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:36:21,784 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:36:21,785 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 23:36:21,785 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:36:21,785 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 146
[2020-09-24 23:36:21,786 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:36:21,786 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 23:36:21,786 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:36:21,786 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 23:36:21,787 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 23:36:21,828 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 23:36:21,828 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:36:21,830 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:36:21,834 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:36:21,834 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 23:36:21,834 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:36:21,835 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 23:36:21,835 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:36:21,835 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 23:36:21,835 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:36:21,836 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 23:36:21,836 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:36:21,837 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 23:36:21,838 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:36:21,840 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:36:21,842 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:36:21,842 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 23:36:21,842 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:36:21,842 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 23:36:21,842 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:36:21,843 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 23:36:21,843 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:36:21,843 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 23:36:21,843 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:36:21,846 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 23:36:21,847 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:36:21,848 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:36:21,856 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:36:21,856 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 23:36:21,856 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:36:21,857 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 23:36:21,857 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:36:21,857 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 23:36:21,857 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:36:21,858 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 23:36:21,858 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:36:21,862 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 23:36:21,862 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:36:21,864 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:36:21,865 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:36:21,865 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 23:36:21,865 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:36:21,866 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 23:36:21,866 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:36:21,866 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 23:36:21,866 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:36:21,866 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 23:36:21,867 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:36:21,874 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116
[2020-09-24 23:36:21,875 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:36:21,877 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:36:21,879 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:36:21,879 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 23:36:21,879 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:36:21,880 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 23:36:21,881 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:36:21,881 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 23:36:21,881 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:36:21,881 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 23:36:21,882 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:36:21,892 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129
[2020-09-24 23:36:21,893 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:36:21,895 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:36:21,899 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:36:21,899 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 23:36:21,899 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:36:21,900 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 23:36:21,900 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:36:21,900 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:36:21,901 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:36:21,901 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-24 23:36:21,901 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 23:36:21,904 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-24 23:36:21,905 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:36:21,906 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:36:21,908 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:36:21,908 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 23:36:21,909 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:36:21,909 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 23:36:21,909 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:36:21,910 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 23:36:21,910 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 23:36:21,910 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 23:36:21,910 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:36:21,912 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-24 23:36:21,913 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:36:21,914 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:36:21,916 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:36:21,916 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 23:36:21,917 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:36:21,917 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 23:36:21,917 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:36:21,921 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 23:36:21,921 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 23:36:21,921 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 23:36:21,921 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-24 23:36:21,923 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160
[2020-09-24 23:36:21,924 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:36:21,925 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:36:21,927 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:36:21,927 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 23:36:21,927 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:36:21,928 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 23:36:21,928 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:36:21,929 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 23:36:21,929 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 23:36:21,929 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 23:36:21,930 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 23:36:21,973 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 23:36:21,975 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1903352058]
[2020-09-24 23:36:21,975 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 23:36:21,976 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-24 23:36:21,976 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144898251]
[2020-09-24 23:36:21,980 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-24 23:36:21,981 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 23:36:21,981 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-24 23:36:21,981 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-24 23:36:21,981 INFO  L87              Difference]: Start difference. First operand 400 states and 444 transitions. Second operand 6 states.
[2020-09-24 23:36:22,507 WARN  L193               SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 23:36:25,293 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 23:36:25,293 INFO  L93              Difference]: Finished difference Result 1187 states and 1457 transitions.
[2020-09-24 23:36:25,296 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2020-09-24 23:36:25,296 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 172
[2020-09-24 23:36:25,297 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 23:36:25,305 INFO  L225             Difference]: With dead ends: 1187
[2020-09-24 23:36:25,305 INFO  L226             Difference]: Without dead ends: 897
[2020-09-24 23:36:25,308 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2020-09-24 23:36:25,309 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 897 states.
[2020-09-24 23:36:25,422 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 661.
[2020-09-24 23:36:25,422 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 661 states.
[2020-09-24 23:36:25,426 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 746 transitions.
[2020-09-24 23:36:25,427 INFO  L78                 Accepts]: Start accepts. Automaton has 661 states and 746 transitions. Word has length 172
[2020-09-24 23:36:25,428 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 23:36:25,428 INFO  L479      AbstractCegarLoop]: Abstraction has 661 states and 746 transitions.
[2020-09-24 23:36:25,428 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-24 23:36:25,428 INFO  L276                IsEmpty]: Start isEmpty. Operand 661 states and 746 transitions.
[2020-09-24 23:36:25,433 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 178
[2020-09-24 23:36:25,433 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 23:36:25,433 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 23:36:25,433 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 23:36:25,434 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 23:36:25,434 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 23:36:25,434 INFO  L82        PathProgramCache]: Analyzing trace with hash 1844704864, now seen corresponding path program 1 times
[2020-09-24 23:36:25,434 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 23:36:25,435 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1551034413]
[2020-09-24 23:36:25,435 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 23:36:25,506 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-24 23:36:25,514 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-24 23:36:25,515 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 23:36:25,520 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 23:36:25,547 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 11:36:25 BoogieIcfgContainer
[2020-09-24 23:36:25,547 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 23:36:25,549 INFO  L168              Benchmark]: Toolchain (without parser) took 20183.78 ms. Allocated memory was 141.0 MB in the beginning and 486.0 MB in the end (delta: 345.0 MB). Free memory was 101.9 MB in the beginning and 176.9 MB in the end (delta: -75.0 MB). Peak memory consumption was 270.0 MB. Max. memory is 7.1 GB.
[2020-09-24 23:36:25,551 INFO  L168              Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 141.0 MB. Free memory was 121.2 MB in the beginning and 121.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-09-24 23:36:25,552 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 725.94 ms. Allocated memory was 141.0 MB in the beginning and 205.0 MB in the end (delta: 64.0 MB). Free memory was 101.3 MB in the beginning and 174.2 MB in the end (delta: -72.9 MB). Peak memory consumption was 27.4 MB. Max. memory is 7.1 GB.
[2020-09-24 23:36:25,552 INFO  L168              Benchmark]: Boogie Preprocessor took 103.54 ms. Allocated memory is still 205.0 MB. Free memory was 174.2 MB in the beginning and 169.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB.
[2020-09-24 23:36:25,553 INFO  L168              Benchmark]: RCFGBuilder took 1311.96 ms. Allocated memory was 205.0 MB in the beginning and 235.9 MB in the end (delta: 30.9 MB). Free memory was 169.3 MB in the beginning and 174.8 MB in the end (delta: -5.5 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB.
[2020-09-24 23:36:25,555 INFO  L168              Benchmark]: TraceAbstraction took 18032.92 ms. Allocated memory was 235.9 MB in the beginning and 486.0 MB in the end (delta: 250.1 MB). Free memory was 173.4 MB in the beginning and 176.9 MB in the end (delta: -3.5 MB). Peak memory consumption was 246.6 MB. Max. memory is 7.1 GB.
[2020-09-24 23:36:25,559 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.28 ms. Allocated memory is still 141.0 MB. Free memory was 121.2 MB in the beginning and 121.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 725.94 ms. Allocated memory was 141.0 MB in the beginning and 205.0 MB in the end (delta: 64.0 MB). Free memory was 101.3 MB in the beginning and 174.2 MB in the end (delta: -72.9 MB). Peak memory consumption was 27.4 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 103.54 ms. Allocated memory is still 205.0 MB. Free memory was 174.2 MB in the beginning and 169.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1311.96 ms. Allocated memory was 205.0 MB in the beginning and 235.9 MB in the end (delta: 30.9 MB). Free memory was 169.3 MB in the beginning and 174.8 MB in the end (delta: -5.5 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 18032.92 ms. Allocated memory was 235.9 MB in the beginning and 486.0 MB in the end (delta: 250.1 MB). Free memory was 173.4 MB in the beginning and 176.9 MB in the end (delta: -3.5 MB). Peak memory consumption was 246.6 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 318]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L40]               int cleanupTimeShifts  =    4;
[L185]              int waterLevel  =    1;
[L186]              int methaneLevelCritical  =    0;
[L492]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L693]              int pumpRunning  =    0;
[L694]              int systemActive  =    1;
[L121]              int retValue_acc ;
[L122]              int tmp ;
[L126]  FCALL       select_helpers()
[L127]  FCALL       select_features()
[L128]  CALL, EXPR  valid_product()
[L305]              int retValue_acc ;
[L308]              retValue_acc = 1
[L309]              return (retValue_acc);
[L128]  RET, EXPR   valid_product()
[L128]              tmp = valid_product()
[L130]  COND TRUE   \read(tmp)
[L132]  FCALL       setup()
[L133]  CALL        runTest()
[L112]  CALL        test()
[L887]              int splverifierCounter ;
[L888]              int tmp ;
[L889]              int tmp___0 ;
[L890]              int tmp___1 ;
[L891]              int tmp___2 ;
[L894]              splverifierCounter = 0
[L896]  COND TRUE   1
[L898]  COND TRUE   splverifierCounter < 4
[L904]              tmp = __VERIFIER_nondet_int()
[L906]  COND TRUE   \read(tmp)
[L908]  CALL        waterRise()
[L203]  COND TRUE   waterLevel < 2
[L204]              waterLevel = waterLevel + 1
[L908]  RET         waterRise()
[L914]              tmp___0 = __VERIFIER_nondet_int()
[L916]  COND FALSE  !(\read(tmp___0))
[L924]              tmp___2 = __VERIFIER_nondet_int()
[L926]  COND FALSE  !(\read(tmp___2))
[L932]              tmp___1 = __VERIFIER_nondet_int()
[L934]  COND TRUE   \read(tmp___1)
[L936]  CALL        stopSystem()
[L866]  COND FALSE  !(\read(pumpRunning))
[L873]              systemActive = 0
[L936]  RET         stopSystem()
[L943]  CALL        timeShift()
[L700]  COND FALSE  !(\read(pumpRunning))
[L707]  COND FALSE  !(\read(systemActive))
[L715]  CALL        __utac_acc__Specification3_spec__1()
[L149]              int tmp ;
[L150]              int tmp___0 ;
[L151]              int tmp___1 ;
[L155]  CALL, EXPR  isMethaneLevelCritical()
[L224]              int retValue_acc ;
[L227]              retValue_acc = methaneLevelCritical
[L228]              return (retValue_acc);
[L155]  RET, EXPR   isMethaneLevelCritical()
[L155]              tmp = isMethaneLevelCritical()
[L157]  COND FALSE  !(\read(tmp))
[L161]  CALL, EXPR  getWaterLevel()
[L256]              int retValue_acc ;
[L259]              retValue_acc = waterLevel
[L260]              return (retValue_acc);
[L161]  RET, EXPR   getWaterLevel()
[L161]              tmp___0 = getWaterLevel()
[L163]  COND TRUE   tmp___0 == 2
[L165]  CALL, EXPR  isPumpRunning()
[L799]              int retValue_acc ;
[L802]              retValue_acc = pumpRunning
[L803]              return (retValue_acc);
[L165]  RET, EXPR   isPumpRunning()
[L165]              tmp___1 = isPumpRunning()
[L167]  COND FALSE  !(\read(tmp___1))
[L171]  CALL        __automaton_fail()
[L318]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 40 procedures, 631 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 9.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 576 SDtfs, 1123 SDslu, 806 SDs, 0 SdLazy, 1982 SolverSat, 404 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=661occurred 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, 287 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 7.2s InterpolantComputationTime, 502 NumberOfCodeBlocks, 502 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 323 ConstructedInterpolants, 0 QuantifiedInterpolants, 128744 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...