/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_product59.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 10:57:37,134 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 10:57:37,139 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 10:57:37,183 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 10:57:37,183 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 10:57:37,194 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 10:57:37,196 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 10:57:37,199 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 10:57:37,202 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 10:57:37,204 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 10:57:37,207 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 10:57:37,208 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 10:57:37,208 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 10:57:37,211 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 10:57:37,213 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 10:57:37,215 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 10:57:37,216 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 10:57:37,218 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 10:57:37,219 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 10:57:37,225 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 10:57:37,228 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 10:57:37,229 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 10:57:37,230 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 10:57:37,231 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 10:57:37,235 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 10:57:37,236 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 10:57:37,236 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 10:57:37,239 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 10:57:37,239 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 10:57:37,241 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 10:57:37,241 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 10:57:37,242 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 10:57:37,243 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 10:57:37,244 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 10:57:37,245 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 10:57:37,245 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 10:57:37,246 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 10:57:37,246 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 10:57:37,246 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 10:57:37,247 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 10:57:37,248 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 10:57:37,249 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 10:57:37,294 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 10:57:37,294 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 10:57:37,296 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 10:57:37,296 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 10:57:37,296 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 10:57:37,297 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 10:57:37,297 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 10:57:37,297 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 10:57:37,298 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 10:57:37,298 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 10:57:37,299 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 10:57:37,299 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 10:57:37,299 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 10:57:37,300 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 10:57:37,300 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 10:57:37,300 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 10:57:37,300 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 10:57:37,301 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 10:57:37,301 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 10:57:37,301 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 10:57:37,301 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 10:57:37,301 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 10:57:37,302 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 10:57:37,302 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 10:57:37,302 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 10:57:37,302 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 10:57:37,302 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 10:57:37,303 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 10:57:37,303 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 10:57:37,303 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 10:57:37,731 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 10:57:37,755 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 10:57:37,760 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 10:57:37,762 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 10:57:37,762 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 10:57:37,764 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product59.cil.c
[2020-09-25 10:57:37,852 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eb969c791/425c1b45d1644adaaccb8c38b728474a/FLAGf21b90443
[2020-09-25 10:57:38,497 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 10:57:38,498 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product59.cil.c
[2020-09-25 10:57:38,513 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eb969c791/425c1b45d1644adaaccb8c38b728474a/FLAGf21b90443
[2020-09-25 10:57:38,737 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eb969c791/425c1b45d1644adaaccb8c38b728474a
[2020-09-25 10:57:38,751 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 10:57:38,758 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 10:57:38,762 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 10:57:38,762 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 10:57:38,766 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 10:57:38,767 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:57:38" (1/1) ...
[2020-09-25 10:57:38,771 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bbc2ce6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:38, skipping insertion in model container
[2020-09-25 10:57:38,771 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:57:38" (1/1) ...
[2020-09-25 10:57:38,780 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 10:57:38,827 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 10:57:39,310 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 10:57:39,325 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 10:57:39,422 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 10:57:39,469 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 10:57:39,471 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:39 WrapperNode
[2020-09-25 10:57:39,471 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 10:57:39,472 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 10:57:39,472 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 10:57:39,473 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 10:57:39,490 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:39" (1/1) ...
[2020-09-25 10:57:39,492 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:39" (1/1) ...
[2020-09-25 10:57:39,518 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:39" (1/1) ...
[2020-09-25 10:57:39,518 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:39" (1/1) ...
[2020-09-25 10:57:39,553 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:39" (1/1) ...
[2020-09-25 10:57:39,564 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:39" (1/1) ...
[2020-09-25 10:57:39,569 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:39" (1/1) ...
[2020-09-25 10:57:39,577 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 10:57:39,577 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 10:57:39,577 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 10:57:39,578 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 10:57:39,580 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:39" (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 10:57:39,658 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 10:57:39,659 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 10:57:39,659 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 10:57:39,659 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 10:57:39,659 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 10:57:39,659 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 10:57:39,660 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 10:57:39,660 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 10:57:39,660 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 10:57:39,660 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 10:57:39,660 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 10:57:39,661 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 10:57:39,661 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 10:57:39,661 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 10:57:39,661 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 10:57:39,661 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-25 10:57:39,662 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-25 10:57:39,662 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 10:57:39,662 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 10:57:39,662 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 10:57:39,662 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 10:57:39,663 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 10:57:39,663 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 10:57:39,663 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 10:57:39,663 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 10:57:39,663 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 10:57:39,664 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 10:57:39,664 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 10:57:39,664 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 10:57:39,664 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 10:57:39,664 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 10:57:39,664 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-25 10:57:39,665 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 10:57:39,665 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor
[2020-09-25 10:57:39,665 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 10:57:39,665 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 10:57:39,665 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 10:57:39,665 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 10:57:39,665 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 10:57:39,666 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-25 10:57:39,666 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-25 10:57:39,666 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-25 10:57:39,666 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 10:57:39,666 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 10:57:39,666 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 10:57:39,666 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 10:57:39,667 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 10:57:39,667 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 10:57:39,667 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 10:57:39,667 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 10:57:39,667 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 10:57:39,667 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 10:57:39,667 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 10:57:39,668 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 10:57:39,668 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 10:57:39,668 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 10:57:39,668 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 10:57:39,668 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 10:57:39,668 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 10:57:39,669 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 10:57:39,669 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 10:57:39,669 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 10:57:39,669 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 10:57:39,669 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 10:57:39,669 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 10:57:39,670 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 10:57:39,670 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 10:57:39,670 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 10:57:39,670 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-25 10:57:39,670 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-25 10:57:39,670 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 10:57:39,670 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 10:57:39,671 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 10:57:39,671 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 10:57:39,671 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 10:57:39,671 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 10:57:39,671 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 10:57:39,671 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 10:57:39,672 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 10:57:39,672 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 10:57:39,672 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 10:57:39,672 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 10:57:39,672 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 10:57:39,672 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 10:57:39,673 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 10:57:39,673 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-25 10:57:39,673 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 10:57:39,673 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 10:57:39,673 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 10:57:39,673 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 10:57:39,673 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-25 10:57:39,674 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-25 10:57:39,674 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-25 10:57:39,674 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor
[2020-09-25 10:57:39,674 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 10:57:39,674 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 10:57:39,674 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 10:57:39,675 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 10:57:40,739 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 10:57:40,740 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 10:57:40,747 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:57:40 BoogieIcfgContainer
[2020-09-25 10:57:40,747 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 10:57:40,748 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 10:57:40,748 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 10:57:40,752 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 10:57:40,752 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:57:38" (1/3) ...
[2020-09-25 10:57:40,753 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60ad74f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:57:40, skipping insertion in model container
[2020-09-25 10:57:40,753 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:39" (2/3) ...
[2020-09-25 10:57:40,754 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60ad74f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:57:40, skipping insertion in model container
[2020-09-25 10:57:40,754 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:57:40" (3/3) ...
[2020-09-25 10:57:40,756 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product59.cil.c
[2020-09-25 10:57:40,767 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 10:57:40,778 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 10:57:40,801 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 10:57:40,833 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 10:57:40,834 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 10:57:40,834 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 10:57:40,834 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 10:57:40,834 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 10:57:40,834 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 10:57:40,835 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 10:57:40,835 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 10:57:40,865 INFO  L276                IsEmpty]: Start isEmpty. Operand 346 states.
[2020-09-25 10:57:40,885 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 10:57:40,885 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 10:57:40,887 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 10:57:40,887 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 10:57:40,894 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 10:57:40,895 INFO  L82        PathProgramCache]: Analyzing trace with hash 1122426674, now seen corresponding path program 1 times
[2020-09-25 10:57:40,906 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 10:57:40,907 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1935256890]
[2020-09-25 10:57:40,907 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 10:57:41,248 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:41,387 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:41,581 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:43,046 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:46,257 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:46,258 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 10:57:46,258 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 10:57:46,259 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4999
[2020-09-25 10:57:46,262 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:46,263 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:46,263 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 10:57:46,272 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-25 10:57:46,273 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 92
[2020-09-25 10:57:46,273 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 14
[2020-09-25 10:57:46,750 WARN  L193               SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 10:57:46,754 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 10:57:46,808 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:46,869 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:47,137 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:47,137 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 10:57:47,138 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:47,138 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 326
[2020-09-25 10:57:47,138 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:47,138 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:47,139 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:57:47,139 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:57:47,139 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-25 10:57:47,139 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:57:47,270 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 10:57:47,272 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:47,276 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:47,284 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:47,284 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:57:47,285 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:47,285 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 10:57:47,285 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:47,285 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:47,285 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:57:47,286 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:57:47,286 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:57:47,286 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:57:47,289 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 10:57:47,290 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:47,291 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:47,295 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:47,295 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:57:47,296 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:47,296 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 10:57:47,296 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:47,296 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:47,296 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:57:47,297 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:57:47,297 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:57:47,297 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:57:47,299 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 10:57:47,300 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:47,303 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:47,311 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:47,311 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:57:47,312 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:47,312 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 10:57:47,312 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:47,312 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:47,313 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:57:47,313 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:57:47,313 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:57:47,313 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:57:47,316 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 10:57:47,317 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:47,319 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:47,322 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:47,322 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:57:47,323 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:47,323 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 10:57:47,323 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:47,323 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:47,324 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:57:47,324 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:57:47,324 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:57:47,324 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:57:47,328 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 10:57:47,329 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:47,332 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:47,336 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:47,336 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:57:47,336 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:47,337 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 10:57:47,337 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:47,337 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:47,337 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:57:47,337 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:57:47,338 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:57:47,338 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:57:47,340 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 10:57:47,341 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:47,343 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:47,353 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:47,353 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:57:47,354 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:47,354 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-25 10:57:47,354 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:47,354 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:47,354 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 10:57:47,355 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:57:47,355 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:57:47,355 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:57:47,387 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 10:57:47,390 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:47,392 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:47,393 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:47,394 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:57:47,394 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:47,394 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 10:57:47,394 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:47,395 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:47,395 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:57:47,395 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:57:47,395 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:57:47,396 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:57:47,432 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 10:57:47,433 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1935256890]
[2020-09-25 10:57:47,435 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 10:57:47,436 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-25 10:57:47,441 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859908682]
[2020-09-25 10:57:47,452 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 10:57:47,453 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 10:57:47,473 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 10:57:47,475 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-25 10:57:47,478 INFO  L87              Difference]: Start difference. First operand 346 states. Second operand 8 states.
[2020-09-25 10:57:48,089 WARN  L193               SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 10:57:49,736 WARN  L193               SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:57:50,088 WARN  L193               SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 10:57:50,440 WARN  L193               SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:57:50,911 WARN  L193               SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 10:57:51,258 WARN  L193               SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:57:51,965 WARN  L193               SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 10:57:52,323 WARN  L193               SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:57:53,998 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 10:57:53,998 INFO  L93              Difference]: Finished difference Result 760 states and 942 transitions.
[2020-09-25 10:57:54,003 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-25 10:57:54,005 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-25 10:57:54,006 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 10:57:54,039 INFO  L225             Difference]: With dead ends: 760
[2020-09-25 10:57:54,039 INFO  L226             Difference]: Without dead ends: 508
[2020-09-25 10:57:54,046 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-25 10:57:54,064 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 508 states.
[2020-09-25 10:57:54,191 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 454.
[2020-09-25 10:57:54,193 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 454 states.
[2020-09-25 10:57:54,196 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 510 transitions.
[2020-09-25 10:57:54,198 INFO  L78                 Accepts]: Start accepts. Automaton has 454 states and 510 transitions. Word has length 153
[2020-09-25 10:57:54,199 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 10:57:54,200 INFO  L479      AbstractCegarLoop]: Abstraction has 454 states and 510 transitions.
[2020-09-25 10:57:54,200 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 10:57:54,200 INFO  L276                IsEmpty]: Start isEmpty. Operand 454 states and 510 transitions.
[2020-09-25 10:57:54,206 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 169
[2020-09-25 10:57:54,206 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 10:57:54,207 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 10:57:54,207 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 10:57:54,207 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 10:57:54,208 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 10:57:54,208 INFO  L82        PathProgramCache]: Analyzing trace with hash 1670043451, now seen corresponding path program 1 times
[2020-09-25 10:57:54,208 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 10:57:54,208 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1752424187]
[2020-09-25 10:57:54,209 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 10:57:54,275 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:54,339 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:55,416 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:55,416 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 201
[2020-09-25 10:57:55,416 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:55,416 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1136
[2020-09-25 10:57:55,417 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:55,417 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:55,417 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 10:57:55,417 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 82
[2020-09-25 10:57:55,417 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 73
[2020-09-25 10:57:55,417 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 10:57:55,718 WARN  L193               SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 10:57:55,720 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 10:57:55,751 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:55,829 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:56,033 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:56,033 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 10:57:56,034 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:56,034 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 281
[2020-09-25 10:57:56,034 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:56,034 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:56,034 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:57:56,035 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:57:56,035 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 78
[2020-09-25 10:57:56,035 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 10:57:56,091 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 10:57:56,092 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:56,093 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:56,096 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:56,096 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:57:56,096 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:56,096 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 10:57:56,097 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:56,097 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:56,097 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:57:56,097 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:57:56,097 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:57:56,098 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:57:56,099 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 10:57:56,100 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:56,101 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:56,103 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:56,103 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:57:56,104 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:56,104 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 10:57:56,104 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:56,104 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:56,104 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:57:56,105 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:57:56,105 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:57:56,105 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:57:56,106 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 10:57:56,107 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:56,109 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:56,116 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:56,116 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:57:56,116 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:56,116 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 10:57:56,116 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:56,117 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:56,117 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:57:56,117 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:57:56,117 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:57:56,117 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 10:57:56,119 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 10:57:56,120 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:56,122 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:56,125 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:56,125 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:57:56,125 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:56,126 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 10:57:56,126 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:56,127 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:56,127 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:57:56,127 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:57:56,127 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:57:56,128 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:57:56,139 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116
[2020-09-25 10:57:56,141 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:56,142 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:56,148 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:56,149 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 10:57:56,149 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:56,149 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 10:57:56,149 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:56,149 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:56,150 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:57:56,150 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:57:56,150 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 10:57:56,150 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:57:56,152 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136
[2020-09-25 10:57:56,153 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:56,154 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:56,156 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:56,156 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:57:56,156 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:56,156 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 10:57:56,157 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:56,157 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:56,157 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:57:56,157 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:57:56,157 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:57:56,157 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 10:57:56,159 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146
[2020-09-25 10:57:56,160 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:56,161 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:56,163 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:56,164 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:57:56,164 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:56,164 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 10:57:56,164 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:56,165 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:56,165 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:57:56,166 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:57:56,166 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:57:56,166 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:57:56,168 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156
[2020-09-25 10:57:56,169 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:57:56,170 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:57:56,172 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:57:56,172 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:57:56,173 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:57:56,173 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 10:57:56,173 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:57:56,174 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:57:56,174 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:57:56,174 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:57:56,175 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:57:56,175 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:57:56,224 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 10:57:56,225 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1752424187]
[2020-09-25 10:57:56,225 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 10:57:56,226 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 10:57:56,226 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506683956]
[2020-09-25 10:57:56,229 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 10:57:56,229 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 10:57:56,229 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 10:57:56,230 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-25 10:57:56,230 INFO  L87              Difference]: Start difference. First operand 454 states and 510 transitions. Second operand 5 states.
[2020-09-25 10:57:56,698 WARN  L193               SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 10:57:59,285 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 10:57:59,285 INFO  L93              Difference]: Finished difference Result 1288 states and 1555 transitions.
[2020-09-25 10:57:59,286 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-25 10:57:59,286 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 168
[2020-09-25 10:57:59,287 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 10:57:59,295 INFO  L225             Difference]: With dead ends: 1288
[2020-09-25 10:57:59,295 INFO  L226             Difference]: Without dead ends: 944
[2020-09-25 10:57:59,298 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-09-25 10:57:59,299 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 944 states.
[2020-09-25 10:57:59,418 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 944 to 789.
[2020-09-25 10:57:59,418 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 789 states.
[2020-09-25 10:57:59,423 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 902 transitions.
[2020-09-25 10:57:59,424 INFO  L78                 Accepts]: Start accepts. Automaton has 789 states and 902 transitions. Word has length 168
[2020-09-25 10:57:59,424 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 10:57:59,424 INFO  L479      AbstractCegarLoop]: Abstraction has 789 states and 902 transitions.
[2020-09-25 10:57:59,425 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 10:57:59,425 INFO  L276                IsEmpty]: Start isEmpty. Operand 789 states and 902 transitions.
[2020-09-25 10:57:59,430 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 178
[2020-09-25 10:57:59,430 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 10:57:59,431 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 10:57:59,431 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 10:57:59,431 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 10:57:59,431 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 10:57:59,432 INFO  L82        PathProgramCache]: Analyzing trace with hash -1697188589, now seen corresponding path program 1 times
[2020-09-25 10:57:59,432 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 10:57:59,432 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1289380710]
[2020-09-25 10:57:59,432 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 10:57:59,494 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 10:57:59,502 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 10:57:59,502 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 10:57:59,508 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 10:57:59,533 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 10:57:59 BoogieIcfgContainer
[2020-09-25 10:57:59,533 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 10:57:59,535 INFO  L168              Benchmark]: Toolchain (without parser) took 20782.05 ms. Allocated memory was 140.0 MB in the beginning and 533.7 MB in the end (delta: 393.7 MB). Free memory was 100.8 MB in the beginning and 398.5 MB in the end (delta: -297.7 MB). Peak memory consumption was 96.1 MB. Max. memory is 7.1 GB.
[2020-09-25 10:57:59,536 INFO  L168              Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-09-25 10:57:59,537 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 710.17 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 100.2 MB in the beginning and 169.6 MB in the end (delta: -69.5 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB.
[2020-09-25 10:57:59,538 INFO  L168              Benchmark]: Boogie Preprocessor took 104.67 ms. Allocated memory is still 202.9 MB. Free memory was 169.6 MB in the beginning and 165.6 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB.
[2020-09-25 10:57:59,539 INFO  L168              Benchmark]: RCFGBuilder took 1169.72 ms. Allocated memory was 202.9 MB in the beginning and 236.5 MB in the end (delta: 33.6 MB). Free memory was 165.6 MB in the beginning and 171.2 MB in the end (delta: -5.6 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB.
[2020-09-25 10:57:59,540 INFO  L168              Benchmark]: TraceAbstraction took 18785.00 ms. Allocated memory was 236.5 MB in the beginning and 533.7 MB in the end (delta: 297.3 MB). Free memory was 169.8 MB in the beginning and 398.5 MB in the end (delta: -228.7 MB). Peak memory consumption was 68.6 MB. Max. memory is 7.1 GB.
[2020-09-25 10:57:59,543 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.22 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 710.17 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 100.2 MB in the beginning and 169.6 MB in the end (delta: -69.5 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 104.67 ms. Allocated memory is still 202.9 MB. Free memory was 169.6 MB in the beginning and 165.6 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1169.72 ms. Allocated memory was 202.9 MB in the beginning and 236.5 MB in the end (delta: 33.6 MB). Free memory was 165.6 MB in the beginning and 171.2 MB in the end (delta: -5.6 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 18785.00 ms. Allocated memory was 236.5 MB in the beginning and 533.7 MB in the end (delta: 297.3 MB). Free memory was 169.8 MB in the beginning and 398.5 MB in the end (delta: -228.7 MB). Peak memory consumption was 68.6 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 694]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L209]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L414]              int waterLevel  =    1;
[L415]              int methaneLevelCritical  =    0;
[L517]              int cleanupTimeShifts  =    4;
[L769]              int pumpRunning  =    0;
[L770]              int systemActive  =    1;
[L596]              int retValue_acc ;
[L597]              int tmp ;
[L601]  FCALL       select_helpers()
[L602]  FCALL       select_features()
[L603]  CALL, EXPR  valid_product()
[L645]              int retValue_acc ;
[L648]              retValue_acc = 1
[L649]              return (retValue_acc);
[L603]  RET, EXPR   valid_product()
[L603]              tmp = valid_product()
[L605]  COND TRUE   \read(tmp)
[L607]  FCALL       setup()
[L608]  CALL        runTest()
[L587]  CALL        test()
[L701]              int splverifierCounter ;
[L702]              int tmp ;
[L703]              int tmp___0 ;
[L704]              int tmp___1 ;
[L705]              int tmp___2 ;
[L708]              splverifierCounter = 0
[L710]  COND TRUE   1
[L712]  COND TRUE   splverifierCounter < 4
[L718]              tmp = __VERIFIER_nondet_int()
[L720]  COND TRUE   \read(tmp)
[L722]  CALL        waterRise()
[L432]  COND TRUE   waterLevel < 2
[L433]              waterLevel = waterLevel + 1
[L722]  RET         waterRise()
[L728]              tmp___0 = __VERIFIER_nondet_int()
[L730]  COND FALSE  !(\read(tmp___0))
[L738]              tmp___2 = __VERIFIER_nondet_int()
[L740]  COND FALSE  !(\read(tmp___2))
[L744]              tmp___1 = __VERIFIER_nondet_int()
[L746]  COND TRUE   \read(tmp___1)
[L748]  CALL        stopSystem()
[L987]  COND FALSE  !(\read(pumpRunning))
[L994]              systemActive = 0
[L748]  RET         stopSystem()
[L755]  CALL        timeShift()
[L776]  COND FALSE  !(\read(pumpRunning))
[L783]  COND FALSE  !(\read(systemActive))
[L791]  CALL        __utac_acc__Specification3_spec__1()
[L657]              int tmp ;
[L658]              int tmp___0 ;
[L659]              int tmp___1 ;
[L663]  CALL, EXPR  isMethaneLevelCritical()
[L453]              int retValue_acc ;
[L456]              retValue_acc = methaneLevelCritical
[L457]              return (retValue_acc);
[L663]  RET, EXPR   isMethaneLevelCritical()
[L663]              tmp = isMethaneLevelCritical()
[L665]  COND FALSE  !(\read(tmp))
[L669]  CALL, EXPR  getWaterLevel()
[L485]              int retValue_acc ;
[L488]              retValue_acc = waterLevel
[L489]              return (retValue_acc);
[L669]  RET, EXPR   getWaterLevel()
[L669]              tmp___0 = getWaterLevel()
[L671]  COND TRUE   tmp___0 == 2
[L673]  CALL, EXPR  isPumpRunning()
[L901]              int retValue_acc ;
[L904]              retValue_acc = pumpRunning
[L905]              return (retValue_acc);
[L673]  RET, EXPR   isPumpRunning()
[L673]              tmp___1 = isPumpRunning()
[L675]  COND FALSE  !(\read(tmp___1))
[L679]  CALL        __automaton_fail()
[L694]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 42 procedures, 658 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 9.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 623 SDtfs, 1078 SDslu, 760 SDs, 0 SdLazy, 2118 SolverSat, 367 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=789occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 209 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 8.0s InterpolantComputationTime, 498 NumberOfCodeBlocks, 498 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 319 ConstructedInterpolants, 0 QuantifiedInterpolants, 137626 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...