/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=0.1 --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_product12.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 09:48:44,063 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 09:48:44,067 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 09:48:44,120 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 09:48:44,121 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 09:48:44,134 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 09:48:44,138 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 09:48:44,141 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 09:48:44,143 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 09:48:44,144 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 09:48:44,147 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 09:48:44,149 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 09:48:44,150 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 09:48:44,154 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 09:48:44,156 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 09:48:44,159 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 09:48:44,161 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 09:48:44,162 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 09:48:44,164 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 09:48:44,172 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 09:48:44,173 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 09:48:44,175 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 09:48:44,177 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 09:48:44,178 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 09:48:44,183 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 09:48:44,183 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 09:48:44,183 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 09:48:44,185 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 09:48:44,185 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 09:48:44,189 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 09:48:44,190 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 09:48:44,190 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 09:48:44,191 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 09:48:44,192 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 09:48:44,194 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 09:48:44,194 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 09:48:44,195 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 09:48:44,195 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 09:48:44,195 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 09:48:44,197 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 09:48:44,198 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 09:48:44,199 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 09:48:44,235 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 09:48:44,235 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 09:48:44,237 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 09:48:44,237 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 09:48:44,237 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 09:48:44,238 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 09:48:44,238 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 09:48:44,238 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 09:48:44,238 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 09:48:44,238 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 09:48:44,239 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 09:48:44,239 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 09:48:44,239 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 09:48:44,239 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 09:48:44,239 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 09:48:44,240 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 09:48:44,240 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 09:48:44,240 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 09:48:44,240 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 09:48:44,241 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 09:48:44,241 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 09:48:44,241 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 09:48:44,241 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 09:48:44,241 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 09:48:44,242 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 09:48:44,242 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 09:48:44,242 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 09:48:44,242 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 09:48:44,242 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 09:48:44,243 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=0.1;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=0.1;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=0.1;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=0.1;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=0.1;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=0.1;log-additional-information=true;
[2020-09-25 09:48:44,685 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 09:48:44,708 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 09:48:44,713 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 09:48:44,715 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 09:48:44,715 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 09:48:44,716 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product12.cil.c
[2020-09-25 09:48:44,803 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a4ab1c2d7/591c2a4337f04ace8107b5c49192e18e/FLAG6ea656ad8
[2020-09-25 09:48:45,405 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 09:48:45,406 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product12.cil.c
[2020-09-25 09:48:45,420 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a4ab1c2d7/591c2a4337f04ace8107b5c49192e18e/FLAG6ea656ad8
[2020-09-25 09:48:45,693 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a4ab1c2d7/591c2a4337f04ace8107b5c49192e18e
[2020-09-25 09:48:45,706 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 09:48:45,711 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 09:48:45,712 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 09:48:45,712 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 09:48:45,716 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 09:48:45,717 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:48:45" (1/1) ...
[2020-09-25 09:48:45,721 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:45, skipping insertion in model container
[2020-09-25 09:48:45,721 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:48:45" (1/1) ...
[2020-09-25 09:48:45,731 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 09:48:45,799 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 09:48:46,156 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 09:48:46,172 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 09:48:46,420 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 09:48:46,454 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 09:48:46,454 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:46 WrapperNode
[2020-09-25 09:48:46,454 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 09:48:46,455 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 09:48:46,455 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 09:48:46,456 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 09:48:46,470 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:46" (1/1) ...
[2020-09-25 09:48:46,470 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:46" (1/1) ...
[2020-09-25 09:48:46,492 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:46" (1/1) ...
[2020-09-25 09:48:46,492 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:46" (1/1) ...
[2020-09-25 09:48:46,525 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:46" (1/1) ...
[2020-09-25 09:48:46,538 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:46" (1/1) ...
[2020-09-25 09:48:46,544 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:46" (1/1) ...
[2020-09-25 09:48:46,552 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 09:48:46,552 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 09:48:46,552 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 09:48:46,553 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 09:48:46,554 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:46" (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 09:48:46,654 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 09:48:46,655 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 09:48:46,655 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 09:48:46,655 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 09:48:46,656 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 09:48:46,656 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 09:48:46,656 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 09:48:46,657 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base
[2020-09-25 09:48:46,657 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 09:48:46,657 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 09:48:46,658 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 09:48:46,658 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 09:48:46,658 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 09:48:46,658 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-25 09:48:46,658 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-25 09:48:46,659 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 09:48:46,660 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 09:48:46,660 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 09:48:46,660 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 09:48:46,661 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 09:48:46,661 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 09:48:46,661 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 09:48:46,662 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 09:48:46,662 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 09:48:46,662 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 09:48:46,663 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 09:48:46,663 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 09:48:46,663 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 09:48:46,663 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 09:48:46,664 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 09:48:46,664 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 09:48:46,664 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 09:48:46,664 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 09:48:46,664 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 09:48:46,664 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 09:48:46,664 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 09:48:46,665 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 09:48:46,665 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 09:48:46,665 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 09:48:46,665 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 09:48:46,665 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 09:48:46,665 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 09:48:46,666 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 09:48:46,666 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 09:48:46,666 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 09:48:46,666 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 09:48:46,666 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 09:48:46,666 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-25 09:48:46,667 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-25 09:48:46,667 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 09:48:46,667 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 09:48:46,667 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 09:48:46,668 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 09:48:46,668 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 09:48:46,668 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 09:48:46,668 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 09:48:46,668 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 09:48:46,669 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 09:48:46,669 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base
[2020-09-25 09:48:46,669 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 09:48:46,669 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 09:48:46,669 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 09:48:46,669 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 09:48:46,670 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 09:48:46,670 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 09:48:46,670 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 09:48:46,670 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 09:48:46,670 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 09:48:46,671 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 09:48:46,671 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 09:48:46,672 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 09:48:46,673 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 09:48:46,674 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 09:48:46,674 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 09:48:46,674 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 09:48:46,674 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 09:48:46,674 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 09:48:46,674 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 09:48:46,675 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 09:48:46,675 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 09:48:46,675 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 09:48:46,675 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 09:48:46,676 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 09:48:46,676 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 09:48:46,677 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 09:48:46,677 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 09:48:46,677 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 09:48:46,677 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 09:48:47,893 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 09:48:47,893 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 09:48:47,901 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:48:47 BoogieIcfgContainer
[2020-09-25 09:48:47,901 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 09:48:47,902 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 09:48:47,902 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 09:48:47,906 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 09:48:47,907 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:48:45" (1/3) ...
[2020-09-25 09:48:47,908 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44f26720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:48:47, skipping insertion in model container
[2020-09-25 09:48:47,908 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:46" (2/3) ...
[2020-09-25 09:48:47,908 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44f26720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:48:47, skipping insertion in model container
[2020-09-25 09:48:47,908 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:48:47" (3/3) ...
[2020-09-25 09:48:47,911 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product12.cil.c
[2020-09-25 09:48:47,923 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 09:48:47,934 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 09:48:47,957 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 09:48:47,988 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 09:48:47,988 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 09:48:47,988 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 09:48:47,988 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 09:48:47,989 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 09:48:47,989 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 09:48:47,989 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 09:48:47,989 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 09:48:48,018 INFO  L276                IsEmpty]: Start isEmpty. Operand 281 states.
[2020-09-25 09:48:48,036 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 09:48:48,036 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 09:48:48,038 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 09:48:48,038 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 09:48:48,046 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 09:48:48,046 INFO  L82        PathProgramCache]: Analyzing trace with hash 459580304, now seen corresponding path program 1 times
[2020-09-25 09:48:48,058 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 09:48:48,058 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1536762486]
[2020-09-25 09:48:48,059 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 09:48:48,434 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:48:48,602 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:48:48,774 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:48:50,277 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:48:53,452 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:48:53,456 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 09:48:53,456 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 09:48:53,456 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5008
[2020-09-25 09:48:53,461 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:48:53,462 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:48:53,462 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 09:48:53,463 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 79
[2020-09-25 09:48:53,463 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 91
[2020-09-25 09:48:53,464 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 6
[2020-09-25 09:48:54,066 WARN  L193               SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 09:48:54,073 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 09:48:54,127 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:48:54,180 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:48:54,435 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:48:54,436 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 09:48:54,436 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:48:54,437 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 305
[2020-09-25 09:48:54,437 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:48:54,437 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:48:54,437 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:48:54,438 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:48:54,438 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-25 09:48:54,438 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:48:54,511 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 09:48:54,512 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:48:54,515 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:48:54,521 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:48:54,521 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:48:54,521 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:48:54,522 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 09:48:54,522 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:48:54,522 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:48:54,522 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:48:54,523 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:48:54,523 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 09:48:54,523 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:48:54,526 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 09:48:54,527 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:48:54,529 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:48:54,533 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:48:54,533 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:48:54,534 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:48:54,534 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 09:48:54,534 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:48:54,534 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:48:54,535 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:48:54,535 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:48:54,535 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 09:48:54,535 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:48:54,538 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 09:48:54,540 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:48:54,543 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:48:54,553 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:48:54,554 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:48:54,554 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:48:54,554 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-25 09:48:54,554 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:48:54,555 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:48:54,555 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:48:54,555 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:48:54,555 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 09:48:54,556 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:48:54,559 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 09:48:54,561 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:48:54,563 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:48:54,591 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:48:54,592 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:48:54,592 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:48:54,592 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 29
[2020-09-25 09:48:54,592 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:48:54,593 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:48:54,593 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:48:54,593 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:48:54,593 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 09:48:54,594 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:48:54,598 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 09:48:54,600 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:48:54,602 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:48:54,609 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:48:54,609 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:48:54,609 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:48:54,610 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 09:48:54,610 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:48:54,610 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:48:54,611 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:48:54,611 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:48:54,611 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 09:48:54,611 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:48:54,614 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 09:48:54,616 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:48:54,618 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:48:54,629 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:48:54,629 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:48:54,630 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:48:54,630 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-25 09:48:54,630 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:48:54,630 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:48:54,631 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 09:48:54,631 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:48:54,631 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 09:48:54,631 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:48:54,662 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 09:48:54,663 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:48:54,665 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:48:54,667 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:48:54,668 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:48:54,668 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:48:54,669 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 09:48:54,669 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:48:54,669 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:48:54,670 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:48:54,670 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 09:48:54,670 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:48:54,670 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:48:54,709 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 09:48:54,711 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1536762486]
[2020-09-25 09:48:54,713 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 09:48:54,713 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-25 09:48:54,715 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295656620]
[2020-09-25 09:48:54,722 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 09:48:54,723 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 09:48:54,741 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 09:48:54,742 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-25 09:48:54,745 INFO  L87              Difference]: Start difference. First operand 281 states. Second operand 8 states.
[2020-09-25 09:48:55,360 WARN  L193               SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 09:48:56,616 WARN  L193               SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 09:48:56,986 WARN  L193               SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 09:48:57,383 WARN  L193               SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 09:48:57,770 WARN  L193               SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 09:48:58,085 WARN  L193               SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 09:48:58,570 WARN  L193               SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 09:48:58,881 WARN  L193               SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 09:48:59,885 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 09:48:59,886 INFO  L93              Difference]: Finished difference Result 510 states and 633 transitions.
[2020-09-25 09:48:59,887 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-25 09:48:59,889 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-25 09:48:59,890 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 09:48:59,912 INFO  L225             Difference]: With dead ends: 510
[2020-09-25 09:48:59,912 INFO  L226             Difference]: Without dead ends: 339
[2020-09-25 09:48:59,919 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-25 09:48:59,942 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 339 states.
[2020-09-25 09:49:00,101 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 301.
[2020-09-25 09:49:00,103 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 301 states.
[2020-09-25 09:49:00,106 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 332 transitions.
[2020-09-25 09:49:00,108 INFO  L78                 Accepts]: Start accepts. Automaton has 301 states and 332 transitions. Word has length 153
[2020-09-25 09:49:00,109 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 09:49:00,110 INFO  L479      AbstractCegarLoop]: Abstraction has 301 states and 332 transitions.
[2020-09-25 09:49:00,110 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 09:49:00,110 INFO  L276                IsEmpty]: Start isEmpty. Operand 301 states and 332 transitions.
[2020-09-25 09:49:00,117 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 173
[2020-09-25 09:49:00,117 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 09:49:00,118 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 09:49:00,118 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 09:49:00,118 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 09:49:00,119 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 09:49:00,119 INFO  L82        PathProgramCache]: Analyzing trace with hash 55917288, now seen corresponding path program 1 times
[2020-09-25 09:49:00,119 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 09:49:00,120 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [355821894]
[2020-09-25 09:49:00,120 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 09:49:00,183 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:00,245 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:00,570 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:00,570 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 207
[2020-09-25 09:49:00,571 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:00,571 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 383
[2020-09-25 09:49:00,571 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:00,571 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:00,571 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:00,572 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 153
[2020-09-25 09:49:00,572 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-25 09:49:00,572 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:00,850 WARN  L193               SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 09:49:00,851 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 09:49:00,860 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:00,872 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:00,982 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:00,982 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 09:49:00,983 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:00,983 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 118
[2020-09-25 09:49:00,983 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:00,983 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:00,984 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:00,984 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:00,984 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:00,985 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:01,072 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 09:49:01,075 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:01,079 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:01,088 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:01,088 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:01,088 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:01,088 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-25 09:49:01,089 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:01,089 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:01,089 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:01,089 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:01,090 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:01,091 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:01,092 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 09:49:01,092 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:01,094 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:01,103 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:01,104 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:01,104 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:01,105 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 09:49:01,105 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:01,105 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:01,105 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:01,106 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:01,106 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:01,106 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:01,108 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 09:49:01,109 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:01,110 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:01,116 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:01,116 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:01,116 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:01,116 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 09:49:01,117 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:01,117 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:01,117 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:01,117 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:01,118 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:01,118 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:01,120 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 09:49:01,120 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:01,121 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:01,124 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:01,124 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:01,125 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:01,125 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 09:49:01,125 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:01,125 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:01,126 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:01,126 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:01,126 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:01,126 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:01,134 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116
[2020-09-25 09:49:01,135 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:01,136 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:01,140 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:01,141 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 09:49:01,141 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:01,141 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 09:49:01,141 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:01,142 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:01,142 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:01,142 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:01,142 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:01,143 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:01,152 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129
[2020-09-25 09:49:01,154 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:01,155 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:01,159 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:01,160 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 09:49:01,160 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:01,160 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 09:49:01,161 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:01,161 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:01,161 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:01,161 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:01,162 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-25 09:49:01,162 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:01,164 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-25 09:49:01,165 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:01,166 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:01,168 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:01,168 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:01,168 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:01,169 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 09:49:01,169 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:01,169 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:01,171 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:01,172 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 09:49:01,172 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:01,173 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-25 09:49:01,174 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-25 09:49:01,175 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:01,176 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:01,178 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:01,178 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:01,179 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:01,179 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 09:49:01,179 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:01,179 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:01,180 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:01,180 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 09:49:01,180 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:01,180 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:01,182 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160
[2020-09-25 09:49:01,183 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:01,184 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:01,186 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:01,186 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:01,186 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:01,186 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 09:49:01,187 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:01,187 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:01,187 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:01,187 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 09:49:01,188 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:01,188 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:01,227 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 09:49:01,228 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [355821894]
[2020-09-25 09:49:01,229 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 09:49:01,229 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-25 09:49:01,229 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508776223]
[2020-09-25 09:49:01,233 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-25 09:49:01,233 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 09:49:01,233 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-25 09:49:01,234 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-25 09:49:01,234 INFO  L87              Difference]: Start difference. First operand 301 states and 332 transitions. Second operand 6 states.
[2020-09-25 09:49:01,717 WARN  L193               SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 09:49:03,646 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 09:49:03,646 INFO  L93              Difference]: Finished difference Result 840 states and 1031 transitions.
[2020-09-25 09:49:03,647 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2020-09-25 09:49:03,647 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 172
[2020-09-25 09:49:03,648 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 09:49:03,655 INFO  L225             Difference]: With dead ends: 840
[2020-09-25 09:49:03,655 INFO  L226             Difference]: Without dead ends: 649
[2020-09-25 09:49:03,660 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2020-09-25 09:49:03,664 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 649 states.
[2020-09-25 09:49:03,793 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 463.
[2020-09-25 09:49:03,794 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 463 states.
[2020-09-25 09:49:03,801 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 521 transitions.
[2020-09-25 09:49:03,803 INFO  L78                 Accepts]: Start accepts. Automaton has 463 states and 521 transitions. Word has length 172
[2020-09-25 09:49:03,806 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 09:49:03,806 INFO  L479      AbstractCegarLoop]: Abstraction has 463 states and 521 transitions.
[2020-09-25 09:49:03,806 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-25 09:49:03,806 INFO  L276                IsEmpty]: Start isEmpty. Operand 463 states and 521 transitions.
[2020-09-25 09:49:03,820 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 176
[2020-09-25 09:49:03,821 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 09:49:03,821 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]
[2020-09-25 09:49:03,822 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 09:49:03,822 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 09:49:03,822 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 09:49:03,822 INFO  L82        PathProgramCache]: Analyzing trace with hash 232069563, now seen corresponding path program 1 times
[2020-09-25 09:49:03,822 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 09:49:03,823 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1971180530]
[2020-09-25 09:49:03,824 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 09:49:03,891 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 09:49:03,902 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 09:49:03,902 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 09:49:03,908 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 09:49:03,948 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 09:49:03 BoogieIcfgContainer
[2020-09-25 09:49:03,948 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 09:49:03,952 INFO  L168              Benchmark]: Toolchain (without parser) took 18243.75 ms. Allocated memory was 145.2 MB in the beginning and 460.8 MB in the end (delta: 315.6 MB). Free memory was 103.0 MB in the beginning and 120.0 MB in the end (delta: -16.9 MB). Peak memory consumption was 298.7 MB. Max. memory is 7.1 GB.
[2020-09-25 09:49:03,954 INFO  L168              Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 145.2 MB. Free memory was 122.0 MB in the beginning and 121.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 09:49:03,955 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 742.92 ms. Allocated memory was 145.2 MB in the beginning and 205.0 MB in the end (delta: 59.8 MB). Free memory was 102.4 MB in the beginning and 173.6 MB in the end (delta: -71.3 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB.
[2020-09-25 09:49:03,957 INFO  L168              Benchmark]: Boogie Preprocessor took 96.77 ms. Allocated memory is still 205.0 MB. Free memory was 173.6 MB in the beginning and 169.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
[2020-09-25 09:49:03,959 INFO  L168              Benchmark]: RCFGBuilder took 1348.69 ms. Allocated memory was 205.0 MB in the beginning and 237.0 MB in the end (delta: 32.0 MB). Free memory was 169.6 MB in the beginning and 179.5 MB in the end (delta: -10.0 MB). Peak memory consumption was 82.3 MB. Max. memory is 7.1 GB.
[2020-09-25 09:49:03,968 INFO  L168              Benchmark]: TraceAbstraction took 16046.51 ms. Allocated memory was 237.0 MB in the beginning and 460.8 MB in the end (delta: 223.9 MB). Free memory was 179.5 MB in the beginning and 120.0 MB in the end (delta: 59.6 MB). Peak memory consumption was 283.4 MB. Max. memory is 7.1 GB.
[2020-09-25 09:49:03,979 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.20 ms. Allocated memory is still 145.2 MB. Free memory was 122.0 MB in the beginning and 121.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 742.92 ms. Allocated memory was 145.2 MB in the beginning and 205.0 MB in the end (delta: 59.8 MB). Free memory was 102.4 MB in the beginning and 173.6 MB in the end (delta: -71.3 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 96.77 ms. Allocated memory is still 205.0 MB. Free memory was 173.6 MB in the beginning and 169.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1348.69 ms. Allocated memory was 205.0 MB in the beginning and 237.0 MB in the end (delta: 32.0 MB). Free memory was 169.6 MB in the beginning and 179.5 MB in the end (delta: -10.0 MB). Peak memory consumption was 82.3 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 16046.51 ms. Allocated memory was 237.0 MB in the beginning and 460.8 MB in the end (delta: 223.9 MB). Free memory was 179.5 MB in the beginning and 120.0 MB in the end (delta: 59.6 MB). Peak memory consumption was 283.4 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 890]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L158]              int pumpRunning  =    0;
[L159]              int systemActive  =    1;
[L306]              int waterLevel  =    1;
[L307]              int methaneLevelCritical  =    0;
[L593]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L790]              int cleanupTimeShifts  =    4;
[L863]              int retValue_acc ;
[L864]              int tmp ;
[L868]  FCALL       select_helpers()
[L869]  FCALL       select_features()
[L870]  CALL, EXPR  valid_product()
[L415]              int retValue_acc ;
[L418]              retValue_acc = 1
[L419]              return (retValue_acc);
[L870]  RET, EXPR   valid_product()
[L870]              tmp = valid_product()
[L872]  COND TRUE   \read(tmp)
[L874]  FCALL       setup()
[L875]  CALL        runTest()
[L857]  CALL        test()
[L85]               int splverifierCounter ;
[L86]               int tmp ;
[L87]               int tmp___0 ;
[L88]               int tmp___1 ;
[L89]               int tmp___2 ;
[L92]               splverifierCounter = 0
[L94]   COND TRUE   1
[L96]   COND TRUE   splverifierCounter < 4
[L102]              tmp = __VERIFIER_nondet_int()
[L104]  COND TRUE   \read(tmp)
[L106]  CALL        waterRise()
[L324]  COND TRUE   waterLevel < 2
[L325]              waterLevel = waterLevel + 1
[L106]  RET         waterRise()
[L112]              tmp___0 = __VERIFIER_nondet_int()
[L114]  COND FALSE  !(\read(tmp___0))
[L122]              tmp___2 = __VERIFIER_nondet_int()
[L124]  COND TRUE   \read(tmp___2)
[L126]  CALL        startSystem()
[L301]              systemActive = 1
[L126]  RET         startSystem()
[L141]  CALL        timeShift()
[L165]  COND FALSE  !(\read(pumpRunning))
[L172]  COND TRUE   \read(systemActive)
[L174]  FCALL       processEnvironment()
[L180]  CALL        __utac_acc__Specification3_spec__1()
[L45]               int tmp ;
[L46]               int tmp___0 ;
[L47]               int tmp___1 ;
[L51]   CALL, EXPR  isMethaneLevelCritical()
[L345]              int retValue_acc ;
[L348]              retValue_acc = methaneLevelCritical
[L349]              return (retValue_acc);
[L51]   RET, EXPR   isMethaneLevelCritical()
[L51]               tmp = isMethaneLevelCritical()
[L53]   COND FALSE  !(\read(tmp))
[L57]   CALL, EXPR  getWaterLevel()
[L377]              int retValue_acc ;
[L380]              retValue_acc = waterLevel
[L381]              return (retValue_acc);
[L57]   RET, EXPR   getWaterLevel()
[L57]               tmp___0 = getWaterLevel()
[L59]   COND TRUE   tmp___0 == 2
[L61]   CALL, EXPR  isPumpRunning()
[L238]              int retValue_acc ;
[L241]              retValue_acc = pumpRunning
[L242]              return (retValue_acc);
[L61]   RET, EXPR   isPumpRunning()
[L61]               tmp___1 = isPumpRunning()
[L63]   COND FALSE  !(\read(tmp___1))
[L67]   CALL        __automaton_fail()
[L890]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 37 procedures, 597 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 7.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 431 SDtfs, 894 SDslu, 740 SDs, 0 SdLazy, 1475 SolverSat, 295 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=463occurred 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, 224 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 7.2s InterpolantComputationTime, 500 NumberOfCodeBlocks, 500 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...