/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 10:57:41,254 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 10:57:41,258 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 10:57:41,285 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 10:57:41,285 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 10:57:41,287 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 10:57:41,288 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 10:57:41,290 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 10:57:41,291 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 10:57:41,292 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 10:57:41,293 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 10:57:41,294 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 10:57:41,294 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 10:57:41,295 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 10:57:41,296 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 10:57:41,297 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 10:57:41,298 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 10:57:41,299 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 10:57:41,301 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 10:57:41,302 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 10:57:41,304 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 10:57:41,305 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 10:57:41,306 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 10:57:41,307 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 10:57:41,309 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 10:57:41,310 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 10:57:41,310 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 10:57:41,311 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 10:57:41,311 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 10:57:41,312 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 10:57:41,313 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 10:57:41,313 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 10:57:41,314 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 10:57:41,317 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 10:57:41,318 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 10:57:41,318 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 10:57:41,319 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 10:57:41,319 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 10:57:41,320 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 10:57:41,321 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 10:57:41,323 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 10:57:41,325 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-25 10:57:41,379 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 10:57:41,379 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 10:57:41,380 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 10:57:41,380 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 10:57:41,382 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 10:57:41,383 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 10:57:41,383 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 10:57:41,383 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 10:57:41,383 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 10:57:41,384 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 10:57:41,384 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 10:57:41,384 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 10:57:41,384 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 10:57:41,384 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 10:57:41,385 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 10:57:41,385 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 10:57:41,385 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 10:57:41,385 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 10:57:41,386 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 10:57:41,387 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 10:57:41,387 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 10:57:41,387 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 10:57:41,388 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 10:57:41,388 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 10:57:41,388 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 10:57:41,388 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 10:57:41,389 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 10:57:41,389 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 10:57:41,389 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 10:57:41,390 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;
[2020-09-25 10:57:41,882 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 10:57:41,901 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 10:57:41,905 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 10:57:41,907 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 10:57:41,909 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 10:57:41,910 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c
[2020-09-25 10:57:41,982 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dfe97214d/5a48b579677c4a3387a3756d6d6eb295/FLAG81cee7590
[2020-09-25 10:57:42,619 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 10:57:42,620 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c
[2020-09-25 10:57:42,639 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dfe97214d/5a48b579677c4a3387a3756d6d6eb295/FLAG81cee7590
[2020-09-25 10:57:42,874 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dfe97214d/5a48b579677c4a3387a3756d6d6eb295
[2020-09-25 10:57:42,889 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 10:57:42,895 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 10:57:42,896 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 10:57:42,896 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 10:57:42,901 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 10:57:42,902 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:57:42" (1/1) ...
[2020-09-25 10:57:42,907 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fb038d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:42, skipping insertion in model container
[2020-09-25 10:57:42,907 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:57:42" (1/1) ...
[2020-09-25 10:57:42,916 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 10:57:42,979 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 10:57:43,476 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 10:57:43,512 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 10:57:43,659 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 10:57:43,704 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 10:57:43,705 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:43 WrapperNode
[2020-09-25 10:57:43,705 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 10:57:43,706 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 10:57:43,706 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 10:57:43,706 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 10:57:43,721 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:43" (1/1) ...
[2020-09-25 10:57:43,722 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:43" (1/1) ...
[2020-09-25 10:57:43,743 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:43" (1/1) ...
[2020-09-25 10:57:43,744 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:43" (1/1) ...
[2020-09-25 10:57:43,774 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:43" (1/1) ...
[2020-09-25 10:57:43,788 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:43" (1/1) ...
[2020-09-25 10:57:43,794 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:43" (1/1) ...
[2020-09-25 10:57:43,802 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 10:57:43,803 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 10:57:43,803 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 10:57:43,803 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 10:57:43,805 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:43" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 10:57:43,897 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 10:57:43,897 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 10:57:43,897 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 10:57:43,898 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 10:57:43,898 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 10:57:43,898 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 10:57:43,898 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 10:57:43,898 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 10:57:43,899 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 10:57:43,899 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-25 10:57:43,899 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery
[2020-09-25 10:57:43,899 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 10:57:43,899 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor
[2020-09-25 10:57:43,900 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 10:57:43,900 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 10:57:43,900 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 10:57:43,900 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 10:57:43,901 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 10:57:43,901 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-25 10:57:43,901 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-25 10:57:43,902 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-25 10:57:43,902 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-25 10:57:43,902 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 10:57:43,902 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 10:57:43,902 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 10:57:43,902 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 10:57:43,903 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 10:57:43,903 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 10:57:43,903 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 10:57:43,903 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-25 10:57:43,903 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-25 10:57:43,903 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 10:57:43,904 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 10:57:43,904 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 10:57:43,904 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 10:57:43,904 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 10:57:43,904 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 10:57:43,904 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 10:57:43,905 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 10:57:43,905 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 10:57:43,905 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 10:57:43,905 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 10:57:43,905 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 10:57:43,905 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 10:57:43,906 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 10:57:43,906 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 10:57:43,906 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 10:57:43,906 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 10:57:43,906 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 10:57:43,907 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 10:57:43,907 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 10:57:43,907 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 10:57:43,907 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 10:57:43,907 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 10:57:43,907 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-25 10:57:43,908 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-25 10:57:43,908 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 10:57:43,908 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 10:57:43,908 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 10:57:43,908 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 10:57:43,908 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 10:57:43,909 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-25 10:57:43,909 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-25 10:57:43,909 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 10:57:43,909 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 10:57:43,909 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 10:57:43,910 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-25 10:57:43,910 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-25 10:57:43,910 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-25 10:57:43,910 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery
[2020-09-25 10:57:43,910 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 10:57:43,911 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor
[2020-09-25 10:57:43,911 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 10:57:43,911 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 10:57:43,911 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 10:57:43,911 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 10:57:43,911 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 10:57:43,912 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 10:57:43,912 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 10:57:43,912 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 10:57:43,912 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 10:57:43,912 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 10:57:43,913 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 10:57:43,913 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 10:57:43,913 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 10:57:43,913 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 10:57:43,913 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 10:57:43,913 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 10:57:43,914 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 10:57:43,914 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 10:57:43,914 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 10:57:43,914 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 10:57:43,914 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 10:57:43,915 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 10:57:43,915 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 10:57:43,915 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 10:57:43,915 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 10:57:43,915 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 10:57:43,915 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 10:57:43,916 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 10:57:43,916 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 10:57:43,916 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 10:57:45,300 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 10:57:45,300 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 10:57:45,308 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:57:45 BoogieIcfgContainer
[2020-09-25 10:57:45,308 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 10:57:45,309 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 10:57:45,309 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 10:57:45,313 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 10:57:45,314 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:57:42" (1/3) ...
[2020-09-25 10:57:45,315 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13aac442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:57:45, skipping insertion in model container
[2020-09-25 10:57:45,315 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:43" (2/3) ...
[2020-09-25 10:57:45,315 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13aac442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:57:45, skipping insertion in model container
[2020-09-25 10:57:45,316 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:57:45" (3/3) ...
[2020-09-25 10:57:45,318 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product64.cil.c
[2020-09-25 10:57:45,330 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 10:57:45,341 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 10:57:45,363 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 10:57:45,394 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 10:57:45,394 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 10:57:45,394 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 10:57:45,394 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 10:57:45,394 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 10:57:45,395 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 10:57:45,395 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 10:57:45,395 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 10:57:45,426 INFO  L276                IsEmpty]: Start isEmpty. Operand 362 states.
[2020-09-25 10:57:45,446 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 10:57:45,446 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 10:57:45,448 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 10:57:45,448 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 10:57:45,455 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 10:57:45,455 INFO  L82        PathProgramCache]: Analyzing trace with hash -1409886201, now seen corresponding path program 1 times
[2020-09-25 10:57:45,465 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 10:57:45,466 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [402033913]
[2020-09-25 10:57:45,466 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 10:57:45,775 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:45,933 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:46,199 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:47,772 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:50,839 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:50,840 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 10:57:50,840 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 10:57:50,840 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5051
[2020-09-25 10:57:50,845 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:50,846 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:50,846 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 10:57:50,846 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 79
[2020-09-25 10:57:50,847 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 91
[2020-09-25 10:57:50,847 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 6
[2020-09-25 10:57:51,519 WARN  L193               SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 10:57:51,522 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 10:57:51,567 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:51,619 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:51,854 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:51,854 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 10:57:51,855 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:51,855 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 286
[2020-09-25 10:57:51,855 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:51,855 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:51,856 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:57:51,856 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:57:51,856 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-25 10:57:51,857 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:57:51,923 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 10:57:51,925 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:51,926 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:51,930 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:51,930 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:57:51,931 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:51,931 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 10:57:51,931 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:51,931 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:51,931 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:57:51,932 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:57:51,932 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:57:51,932 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:57:51,934 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 10:57:51,935 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:51,936 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:51,940 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:51,940 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:57:51,940 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:51,940 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 10:57:51,941 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:51,941 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:51,941 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:57:51,941 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:57:51,942 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:57:51,942 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:57:51,943 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 10:57:51,945 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:51,947 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:51,954 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:51,954 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:57:51,955 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:51,955 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 10:57:51,955 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:51,955 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:51,956 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:57:51,956 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:57:51,956 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:57:51,956 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:57:51,958 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 10:57:51,959 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:51,963 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:51,967 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:51,967 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:57:51,968 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:51,969 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 10:57:51,969 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:51,969 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:51,970 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:57:51,970 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:57:51,970 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:57:51,970 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:57:51,974 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 10:57:51,976 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:51,978 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:51,982 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:51,983 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:57:51,983 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:51,983 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 10:57:51,983 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:51,984 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:51,984 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:57:51,984 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:57:51,984 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:57:51,985 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:57:51,987 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 10:57:51,989 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:51,991 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:52,002 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:52,003 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:57:52,003 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:52,003 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 13
[2020-09-25 10:57:52,003 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:52,004 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:52,004 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 10:57:52,004 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:57:52,004 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:57:52,004 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:57:52,033 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 10:57:52,036 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:52,037 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:52,040 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:52,040 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:57:52,041 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:52,041 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 10:57:52,041 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:52,041 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:52,042 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:57:52,042 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:57:52,042 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:57:52,042 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:57:52,083 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 10:57:52,084 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [402033913]
[2020-09-25 10:57:52,086 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 10:57:52,087 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-25 10:57:52,088 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166551845]
[2020-09-25 10:57:52,097 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 10:57:52,098 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 10:57:52,116 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 10:57:52,118 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-25 10:57:52,121 INFO  L87              Difference]: Start difference. First operand 362 states. Second operand 8 states.
[2020-09-25 10:57:52,899 WARN  L193               SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 10:57:54,668 WARN  L193               SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:57:55,086 WARN  L193               SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 10:57:55,531 WARN  L193               SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:57:55,981 WARN  L193               SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 10:57:56,332 WARN  L193               SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:57:57,333 WARN  L193               SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 10:57:57,697 WARN  L193               SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:57:59,599 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 10:57:59,600 INFO  L93              Difference]: Finished difference Result 813 states and 1019 transitions.
[2020-09-25 10:57:59,600 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-25 10:57:59,602 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-25 10:57:59,603 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 10:57:59,625 INFO  L225             Difference]: With dead ends: 813
[2020-09-25 10:57:59,626 INFO  L226             Difference]: Without dead ends: 545
[2020-09-25 10:57:59,634 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-25 10:57:59,655 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 545 states.
[2020-09-25 10:57:59,792 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 486.
[2020-09-25 10:57:59,794 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 486 states.
[2020-09-25 10:57:59,798 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 554 transitions.
[2020-09-25 10:57:59,801 INFO  L78                 Accepts]: Start accepts. Automaton has 486 states and 554 transitions. Word has length 153
[2020-09-25 10:57:59,802 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 10:57:59,802 INFO  L479      AbstractCegarLoop]: Abstraction has 486 states and 554 transitions.
[2020-09-25 10:57:59,802 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 10:57:59,802 INFO  L276                IsEmpty]: Start isEmpty. Operand 486 states and 554 transitions.
[2020-09-25 10:57:59,810 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 173
[2020-09-25 10:57:59,810 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 10:57:59,810 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]
[2020-09-25 10:57:59,811 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 10:57:59,811 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 10:57:59,811 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 10:57:59,811 INFO  L82        PathProgramCache]: Analyzing trace with hash -165266268, now seen corresponding path program 1 times
[2020-09-25 10:57:59,812 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 10:57:59,812 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2072715223]
[2020-09-25 10:57:59,812 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 10:57:59,873 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:59,932 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:58:00,295 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:58:00,295 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 207
[2020-09-25 10:58:00,296 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:58:00,296 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 419
[2020-09-25 10:58:00,296 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:58:00,297 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:58:00,297 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:58:00,297 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 153
[2020-09-25 10:58:00,298 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-25 10:58:00,298 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:58:00,742 WARN  L193               SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 10:58:00,743 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 10:58:00,752 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:58:00,763 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:58:00,889 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:58:00,890 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 10:58:00,890 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:58:00,890 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 135
[2020-09-25 10:58:00,890 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:58:00,891 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:58:00,891 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:58:00,891 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:58:00,891 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:58:00,892 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:58:00,925 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 10:58:00,926 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:58:00,927 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:58:00,929 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:58:00,930 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:58:00,930 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:58:00,930 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 10:58:00,931 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:58:00,931 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:58:00,931 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:58:00,931 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:58:00,931 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:58:00,932 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:58:00,933 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 10:58:00,934 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:58:00,935 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:58:00,937 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:58:00,937 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:58:00,937 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:58:00,937 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 10:58:00,938 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:58:00,938 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:58:00,938 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:58:00,938 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:58:00,939 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:58:00,939 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:58:00,940 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 10:58:00,940 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:58:00,942 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:58:00,945 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:58:00,946 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:58:00,946 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:58:00,946 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 10:58:00,947 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:58:00,947 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:58:00,947 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:58:00,947 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:58:00,948 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:58:00,948 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:58:00,950 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 10:58:00,951 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:58:00,952 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:58:00,953 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:58:00,953 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:58:00,954 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:58:00,954 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 10:58:00,954 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:58:00,954 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:58:00,955 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:58:00,955 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:58:00,955 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:58:00,955 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:58:00,966 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116
[2020-09-25 10:58:00,967 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:58:00,968 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:58:00,973 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:58:00,973 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 10:58:00,973 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:58:00,973 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 10:58:00,974 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:58:00,974 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:58:00,974 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:58:00,974 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:58:00,975 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:58:00,975 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:58:00,984 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129
[2020-09-25 10:58:00,986 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:58:00,987 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:58:00,990 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:58:00,991 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 10:58:00,991 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:58:00,991 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 10:58:00,991 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:58:00,992 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:58:00,992 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:58:00,992 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:58:00,992 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-25 10:58:00,993 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:58:00,995 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-25 10:58:00,996 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:58:00,997 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:58:00,999 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:58:00,999 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:58:00,999 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:58:01,000 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 10:58:01,000 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:58:01,000 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:58:01,000 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:58:01,001 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:58:01,001 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:58:01,001 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:58:01,002 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-25 10:58:01,003 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:58:01,005 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:58:01,006 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:58:01,006 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:58:01,006 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:58:01,007 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 10:58:01,007 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:58:01,007 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:58:01,007 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:58:01,008 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:58:01,008 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:58:01,008 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:58:01,009 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160
[2020-09-25 10:58:01,010 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:58:01,012 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:58:01,013 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:58:01,014 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:58:01,014 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:58:01,014 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 10:58:01,014 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:58:01,015 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:58:01,015 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:58:01,015 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:58:01,015 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:58:01,016 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:58:01,052 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 10:58:01,053 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2072715223]
[2020-09-25 10:58:01,053 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 10:58:01,053 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-25 10:58:01,053 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466863936]
[2020-09-25 10:58:01,056 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-25 10:58:01,056 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 10:58:01,056 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-25 10:58:01,057 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-25 10:58:01,057 INFO  L87              Difference]: Start difference. First operand 486 states and 554 transitions. Second operand 6 states.
[2020-09-25 10:58:01,546 WARN  L193               SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 10:58:05,063 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 10:58:05,064 INFO  L93              Difference]: Finished difference Result 1461 states and 1819 transitions.
[2020-09-25 10:58:05,064 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2020-09-25 10:58:05,064 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 172
[2020-09-25 10:58:05,066 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 10:58:05,077 INFO  L225             Difference]: With dead ends: 1461
[2020-09-25 10:58:05,078 INFO  L226             Difference]: Without dead ends: 1085
[2020-09-25 10:58:05,084 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2020-09-25 10:58:05,086 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1085 states.
[2020-09-25 10:58:05,260 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 845.
[2020-09-25 10:58:05,260 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 845 states.
[2020-09-25 10:58:05,266 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 982 transitions.
[2020-09-25 10:58:05,266 INFO  L78                 Accepts]: Start accepts. Automaton has 845 states and 982 transitions. Word has length 172
[2020-09-25 10:58:05,267 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 10:58:05,267 INFO  L479      AbstractCegarLoop]: Abstraction has 845 states and 982 transitions.
[2020-09-25 10:58:05,268 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-25 10:58:05,268 INFO  L276                IsEmpty]: Start isEmpty. Operand 845 states and 982 transitions.
[2020-09-25 10:58:05,274 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 178
[2020-09-25 10:58:05,274 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 10:58:05,274 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 10:58:05,275 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 10:58:05,275 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 10:58:05,275 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 10:58:05,275 INFO  L82        PathProgramCache]: Analyzing trace with hash 102633961, now seen corresponding path program 1 times
[2020-09-25 10:58:05,276 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 10:58:05,276 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1584137334]
[2020-09-25 10:58:05,276 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 10:58:05,350 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 10:58:05,358 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 10:58:05,359 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 10:58:05,364 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 10:58:05,394 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 10:58:05 BoogieIcfgContainer
[2020-09-25 10:58:05,394 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 10:58:05,397 INFO  L168              Benchmark]: Toolchain (without parser) took 22506.08 ms. Allocated memory was 138.9 MB in the beginning and 540.0 MB in the end (delta: 401.1 MB). Free memory was 101.5 MB in the beginning and 319.7 MB in the end (delta: -218.2 MB). Peak memory consumption was 182.8 MB. Max. memory is 7.1 GB.
[2020-09-25 10:58:05,398 INFO  L168              Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-09-25 10:58:05,399 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 809.64 ms. Allocated memory was 138.9 MB in the beginning and 200.8 MB in the end (delta: 61.9 MB). Free memory was 100.9 MB in the beginning and 167.5 MB in the end (delta: -66.6 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB.
[2020-09-25 10:58:05,400 INFO  L168              Benchmark]: Boogie Preprocessor took 96.48 ms. Allocated memory is still 200.8 MB. Free memory was 167.5 MB in the beginning and 163.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB.
[2020-09-25 10:58:05,401 INFO  L168              Benchmark]: RCFGBuilder took 1505.18 ms. Allocated memory was 200.8 MB in the beginning and 232.8 MB in the end (delta: 32.0 MB). Free memory was 163.2 MB in the beginning and 166.8 MB in the end (delta: -3.6 MB). Peak memory consumption was 83.5 MB. Max. memory is 7.1 GB.
[2020-09-25 10:58:05,402 INFO  L168              Benchmark]: TraceAbstraction took 20085.24 ms. Allocated memory was 232.8 MB in the beginning and 540.0 MB in the end (delta: 307.2 MB). Free memory was 166.8 MB in the beginning and 319.7 MB in the end (delta: -152.9 MB). Peak memory consumption was 154.3 MB. Max. memory is 7.1 GB.
[2020-09-25 10:58:05,406 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.26 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 809.64 ms. Allocated memory was 138.9 MB in the beginning and 200.8 MB in the end (delta: 61.9 MB). Free memory was 100.9 MB in the beginning and 167.5 MB in the end (delta: -66.6 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 96.48 ms. Allocated memory is still 200.8 MB. Free memory was 167.5 MB in the beginning and 163.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1505.18 ms. Allocated memory was 200.8 MB in the beginning and 232.8 MB in the end (delta: 32.0 MB). Free memory was 163.2 MB in the beginning and 166.8 MB in the end (delta: -3.6 MB). Peak memory consumption was 83.5 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 20085.24 ms. Allocated memory was 232.8 MB in the beginning and 540.0 MB in the end (delta: 307.2 MB). Free memory was 166.8 MB in the beginning and 319.7 MB in the end (delta: -152.9 MB). Peak memory consumption was 154.3 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 996]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L90]                int pumpRunning  =    0;
[L91]                int systemActive  =    1;
[L427]               int waterLevel  =    1;
[L428]               int methaneLevelCritical  =    0;
[L699]               static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L896]               int cleanupTimeShifts  =    4;
[L969]               int retValue_acc ;
[L970]               int tmp ;
[L974]   FCALL       select_helpers()
[L975]   FCALL       select_features()
[L976]   CALL, EXPR  valid_product()
[L69]                int retValue_acc ;
[L72]                retValue_acc = 1
[L73]                return (retValue_acc);
[L976]   RET, EXPR   valid_product()
[L976]               tmp = valid_product()
[L978]   COND TRUE   \read(tmp)
[L980]   FCALL       setup()
[L981]   CALL        runTest()
[L963]   CALL        test()
[L358]               int splverifierCounter ;
[L359]               int tmp ;
[L360]               int tmp___0 ;
[L361]               int tmp___1 ;
[L362]               int tmp___2 ;
[L365]               splverifierCounter = 0
[L367]   COND TRUE   1
[L369]   COND TRUE   splverifierCounter < 4
[L375]               tmp = __VERIFIER_nondet_int()
[L377]   COND TRUE   \read(tmp)
[L379]   CALL        waterRise()
[L445]   COND TRUE   waterLevel < 2
[L446]               waterLevel = waterLevel + 1
[L379]   RET         waterRise()
[L385]               tmp___0 = __VERIFIER_nondet_int()
[L387]   COND FALSE  !(\read(tmp___0))
[L395]               tmp___2 = __VERIFIER_nondet_int()
[L397]   COND FALSE  !(\read(tmp___2))
[L403]               tmp___1 = __VERIFIER_nondet_int()
[L405]   COND TRUE   \read(tmp___1)
[L407]   CALL        stopSystem()
[L334]   COND FALSE  !(\read(pumpRunning))
[L341]               systemActive = 0
[L407]   RET         stopSystem()
[L414]   CALL        timeShift()
[L98]    COND FALSE  !(\read(pumpRunning))
[L105]   COND FALSE  !(\read(systemActive))
[L113]   CALL        __utac_acc__Specification3_spec__1()
[L1002]              int tmp ;
[L1003]              int tmp___0 ;
[L1004]              int tmp___1 ;
[L1008]  CALL, EXPR  isMethaneLevelCritical()
[L466]               int retValue_acc ;
[L469]               retValue_acc = methaneLevelCritical
[L470]               return (retValue_acc);
[L1008]  RET, EXPR   isMethaneLevelCritical()
[L1008]              tmp = isMethaneLevelCritical()
[L1010]  COND FALSE  !(\read(tmp))
[L1014]  CALL, EXPR  getWaterLevel()
[L498]               int retValue_acc ;
[L501]               retValue_acc = waterLevel
[L502]               return (retValue_acc);
[L1014]  RET, EXPR   getWaterLevel()
[L1014]              tmp___0 = getWaterLevel()
[L1016]  COND TRUE   tmp___0 == 2
[L1018]  CALL, EXPR  isPumpRunning()
[L248]               int retValue_acc ;
[L251]               retValue_acc = pumpRunning
[L252]               return (retValue_acc);
[L1018]  RET, EXPR   isPumpRunning()
[L1018]              tmp___1 = isPumpRunning()
[L1020]  COND FALSE  !(\read(tmp___1))
[L1024]  CALL        __automaton_fail()
[L996]               __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 44 procedures, 674 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 19.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 11.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 653 SDtfs, 1371 SDslu, 822 SDs, 0 SdLazy, 2420 SolverSat, 535 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=845occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 2 MinimizatonAttempts, 299 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 7.4s InterpolantComputationTime, 502 NumberOfCodeBlocks, 502 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 323 ConstructedInterpolants, 0 QuantifiedInterpolants, 128440 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...