/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_product21.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 09:49:01,502 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 09:49:01,506 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 09:49:01,533 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 09:49:01,533 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 09:49:01,536 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 09:49:01,538 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 09:49:01,541 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 09:49:01,543 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 09:49:01,544 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 09:49:01,545 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 09:49:01,547 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 09:49:01,547 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 09:49:01,549 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 09:49:01,550 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 09:49:01,552 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 09:49:01,553 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 09:49:01,555 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 09:49:01,557 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 09:49:01,560 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 09:49:01,563 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 09:49:01,567 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 09:49:01,571 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 09:49:01,573 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 09:49:01,578 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 09:49:01,578 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 09:49:01,578 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 09:49:01,580 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 09:49:01,580 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 09:49:01,584 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 09:49:01,585 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 09:49:01,586 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 09:49:01,587 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 09:49:01,588 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 09:49:01,589 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 09:49:01,589 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 09:49:01,590 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 09:49:01,591 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 09:49:01,591 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 09:49:01,593 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 09:49:01,595 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 09:49:01,596 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 09:49:01,661 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 09:49:01,664 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 09:49:01,669 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 09:49:01,669 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 09:49:01,669 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 09:49:01,670 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 09:49:01,671 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 09:49:01,671 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 09:49:01,671 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 09:49:01,671 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 09:49:01,671 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 09:49:01,672 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 09:49:01,672 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 09:49:01,672 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 09:49:01,672 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 09:49:01,672 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 09:49:01,673 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 09:49:01,673 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 09:49:01,673 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 09:49:01,673 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 09:49:01,673 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 09:49:01,675 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 09:49:01,675 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 09:49:01,675 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 09:49:01,676 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 09:49:01,676 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 09:49:01,676 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 09:49:01,677 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 09:49:01,677 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 09:49:01,678 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 09:49:02,139 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 09:49:02,162 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 09:49:02,167 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 09:49:02,170 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 09:49:02,173 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 09:49:02,175 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product21.cil.c
[2020-09-25 09:49:02,274 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/459a5ada2/3b751ee36b584fa0b78e8400a900b15e/FLAGc85f2a26c
[2020-09-25 09:49:02,918 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 09:49:02,919 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product21.cil.c
[2020-09-25 09:49:02,936 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/459a5ada2/3b751ee36b584fa0b78e8400a900b15e/FLAGc85f2a26c
[2020-09-25 09:49:03,193 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/459a5ada2/3b751ee36b584fa0b78e8400a900b15e
[2020-09-25 09:49:03,206 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 09:49:03,210 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 09:49:03,211 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 09:49:03,212 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 09:49:03,216 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 09:49:03,217 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:49:03" (1/1) ...
[2020-09-25 09:49:03,221 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11967da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:03, skipping insertion in model container
[2020-09-25 09:49:03,221 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:49:03" (1/1) ...
[2020-09-25 09:49:03,230 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 09:49:03,290 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 09:49:03,660 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 09:49:03,693 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 09:49:03,952 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 09:49:03,997 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 09:49:03,999 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:03 WrapperNode
[2020-09-25 09:49:03,999 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 09:49:04,000 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 09:49:04,000 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 09:49:04,000 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 09:49:04,014 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:03" (1/1) ...
[2020-09-25 09:49:04,015 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:03" (1/1) ...
[2020-09-25 09:49:04,036 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:03" (1/1) ...
[2020-09-25 09:49:04,037 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:03" (1/1) ...
[2020-09-25 09:49:04,066 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:03" (1/1) ...
[2020-09-25 09:49:04,077 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:03" (1/1) ...
[2020-09-25 09:49:04,086 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:03" (1/1) ...
[2020-09-25 09:49:04,095 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 09:49:04,096 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 09:49:04,096 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 09:49:04,097 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 09:49:04,098 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:03" (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 09:49:04,171 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 09:49:04,171 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 09:49:04,171 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 09:49:04,171 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 09:49:04,172 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 09:49:04,172 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 09:49:04,172 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 09:49:04,173 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 09:49:04,173 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 09:49:04,173 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 09:49:04,174 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 09:49:04,174 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor
[2020-09-25 09:49:04,174 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 09:49:04,174 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 09:49:04,174 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 09:49:04,175 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 09:49:04,175 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 09:49:04,176 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 09:49:04,176 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-25 09:49:04,176 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 09:49:04,177 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 09:49:04,177 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 09:49:04,178 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 09:49:04,178 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 09:49:04,179 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 09:49:04,180 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 09:49:04,180 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 09:49:04,180 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-25 09:49:04,180 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 09:49:04,181 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 09:49:04,181 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 09:49:04,181 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 09:49:04,182 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 09:49:04,182 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 09:49:04,182 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 09:49:04,182 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 09:49:04,182 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 09:49:04,182 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 09:49:04,183 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 09:49:04,183 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 09:49:04,183 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 09:49:04,183 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 09:49:04,183 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 09:49:04,183 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 09:49:04,183 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 09:49:04,184 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 09:49:04,184 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 09:49:04,184 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 09:49:04,184 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 09:49:04,184 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 09:49:04,185 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 09:49:04,185 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 09:49:04,186 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 09:49:04,186 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 09:49:04,186 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 09:49:04,186 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 09:49:04,187 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 09:49:04,187 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 09:49:04,187 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 09:49:04,187 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 09:49:04,187 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 09:49:04,187 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-25 09:49:04,188 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 09:49:04,188 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 09:49:04,188 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 09:49:04,188 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 09:49:04,188 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 09:49:04,189 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 09:49:04,189 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 09:49:04,189 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 09:49:04,189 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-25 09:49:04,189 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor
[2020-09-25 09:49:04,190 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 09:49:04,191 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 09:49:04,191 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 09:49:04,191 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 09:49:04,191 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 09:49:04,191 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 09:49:04,191 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 09:49:04,191 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 09:49:04,192 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 09:49:04,192 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 09:49:04,192 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 09:49:04,192 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 09:49:04,192 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 09:49:04,192 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 09:49:04,193 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 09:49:04,193 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 09:49:04,193 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 09:49:04,193 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 09:49:05,338 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 09:49:05,338 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 09:49:05,345 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:49:05 BoogieIcfgContainer
[2020-09-25 09:49:05,346 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 09:49:05,347 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 09:49:05,347 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 09:49:05,351 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 09:49:05,351 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:49:03" (1/3) ...
[2020-09-25 09:49:05,352 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52647cc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:49:05, skipping insertion in model container
[2020-09-25 09:49:05,352 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:03" (2/3) ...
[2020-09-25 09:49:05,353 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52647cc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:49:05, skipping insertion in model container
[2020-09-25 09:49:05,353 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:49:05" (3/3) ...
[2020-09-25 09:49:05,355 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product21.cil.c
[2020-09-25 09:49:05,367 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 09:49:05,379 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 09:49:05,401 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 09:49:05,433 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 09:49:05,433 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 09:49:05,433 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 09:49:05,433 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 09:49:05,434 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 09:49:05,434 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 09:49:05,434 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 09:49:05,434 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 09:49:05,461 INFO  L276                IsEmpty]: Start isEmpty. Operand 306 states.
[2020-09-25 09:49:05,480 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 09:49:05,481 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 09:49:05,482 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 09:49:05,483 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 09:49:05,490 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 09:49:05,491 INFO  L82        PathProgramCache]: Analyzing trace with hash 1461403982, now seen corresponding path program 1 times
[2020-09-25 09:49:05,503 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 09:49:05,503 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1522777322]
[2020-09-25 09:49:05,504 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 09:49:05,887 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:06,087 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:06,310 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:06,787 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:10,301 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:10,302 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 09:49:10,302 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 09:49:10,303 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4405
[2020-09-25 09:49:10,308 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:10,308 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:10,309 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 09:49:10,310 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 80
[2020-09-25 09:49:10,310 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 90
[2020-09-25 09:49:10,311 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 7
[2020-09-25 09:49:11,117 WARN  L193               SmtUtils]: Spent 495.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 09:49:11,124 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 09:49:11,201 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:11,260 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:11,573 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:11,582 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 09:49:11,582 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:11,584 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 368
[2020-09-25 09:49:11,584 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:11,585 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:11,585 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:11,586 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:11,586 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 76
[2020-09-25 09:49:11,587 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 09:49:11,703 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 09:49:11,704 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:11,705 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:11,709 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:11,710 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:11,710 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:11,710 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 09:49:11,711 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:11,711 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:11,711 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:11,711 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:11,712 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 09:49:11,712 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:11,714 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 09:49:11,715 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:11,716 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:11,720 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:11,720 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:11,720 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:11,721 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 09:49:11,721 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:11,721 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:11,721 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:11,722 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:11,722 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 09:49:11,722 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:11,724 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 09:49:11,725 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:11,728 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:11,737 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:11,738 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:11,738 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:11,738 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-25 09:49:11,738 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:11,739 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:11,739 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:11,739 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:11,740 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 09:49:11,740 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:11,743 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 09:49:11,744 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:11,745 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:11,749 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:11,749 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:11,749 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:11,750 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 09:49:11,750 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:11,750 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:11,751 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:11,751 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:11,751 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 09:49:11,752 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:11,754 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 09:49:11,755 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:11,757 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:11,761 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:11,761 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:11,762 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:11,762 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 09:49:11,762 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:11,763 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:11,763 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:11,763 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:11,763 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 09:49:11,764 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:11,766 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 09:49:11,767 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:11,769 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:11,778 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:11,779 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:11,779 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:11,779 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 09:49:11,779 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:11,780 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:11,780 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 09:49:11,780 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:11,780 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 09:49:11,781 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:11,810 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 09:49:11,811 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:11,813 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:11,816 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:11,816 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:11,817 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:11,817 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 09:49:11,817 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:11,817 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:11,818 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:11,818 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 09:49:11,818 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:11,818 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:11,893 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 09:49:11,894 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1522777322]
[2020-09-25 09:49:11,896 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 09:49:11,897 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-25 09:49:11,898 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954746335]
[2020-09-25 09:49:11,905 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 09:49:11,906 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 09:49:11,925 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 09:49:11,926 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-25 09:49:11,929 INFO  L87              Difference]: Start difference. First operand 306 states. Second operand 8 states.
[2020-09-25 09:49:12,549 WARN  L193               SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 09:49:14,329 WARN  L193               SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 09:49:14,753 WARN  L193               SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 09:49:15,206 WARN  L193               SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 09:49:15,595 WARN  L193               SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 09:49:15,928 WARN  L193               SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 09:49:16,298 WARN  L193               SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 09:49:16,616 WARN  L193               SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 09:49:18,012 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 09:49:18,013 INFO  L93              Difference]: Finished difference Result 634 states and 782 transitions.
[2020-09-25 09:49:18,021 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-25 09:49:18,023 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-25 09:49:18,024 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 09:49:18,059 INFO  L225             Difference]: With dead ends: 634
[2020-09-25 09:49:18,059 INFO  L226             Difference]: Without dead ends: 439
[2020-09-25 09:49:18,069 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-25 09:49:18,089 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 439 states.
[2020-09-25 09:49:18,218 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 394.
[2020-09-25 09:49:18,220 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 394 states.
[2020-09-25 09:49:18,224 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 449 transitions.
[2020-09-25 09:49:18,227 INFO  L78                 Accepts]: Start accepts. Automaton has 394 states and 449 transitions. Word has length 153
[2020-09-25 09:49:18,227 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 09:49:18,228 INFO  L479      AbstractCegarLoop]: Abstraction has 394 states and 449 transitions.
[2020-09-25 09:49:18,228 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 09:49:18,228 INFO  L276                IsEmpty]: Start isEmpty. Operand 394 states and 449 transitions.
[2020-09-25 09:49:18,236 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 160
[2020-09-25 09:49:18,236 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 09:49:18,236 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]
[2020-09-25 09:49:18,237 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 09:49:18,237 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 09:49:18,237 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 09:49:18,238 INFO  L82        PathProgramCache]: Analyzing trace with hash -1073278774, now seen corresponding path program 1 times
[2020-09-25 09:49:18,238 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 09:49:18,238 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1124871804]
[2020-09-25 09:49:18,239 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 09:49:18,295 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:18,349 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:18,450 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:18,590 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:23,342 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:23,342 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 194
[2020-09-25 09:49:23,343 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 09:49:23,343 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5044
[2020-09-25 09:49:23,343 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:23,344 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:23,344 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:23,344 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 79
[2020-09-25 09:49:23,345 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 69
[2020-09-25 09:49:23,345 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:23,730 WARN  L193               SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 09:49:23,731 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 09:49:23,775 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:23,819 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:24,050 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:24,050 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 09:49:24,050 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:24,051 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 273
[2020-09-25 09:49:24,051 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:24,051 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:24,051 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:24,051 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:24,052 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-25 09:49:24,052 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:24,101 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 09:49:24,105 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:24,107 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:24,110 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:24,110 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:24,111 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:24,111 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 09:49:24,111 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:24,112 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:24,112 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:24,112 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:24,113 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 09:49:24,113 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:24,115 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 09:49:24,115 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:24,117 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:24,120 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:24,120 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:24,121 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:24,121 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 09:49:24,121 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:24,121 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:24,122 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:24,122 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:24,122 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 09:49:24,122 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:24,124 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 09:49:24,126 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:24,128 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:24,137 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:24,137 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:24,138 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:24,138 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 09:49:24,138 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:24,138 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:24,139 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:24,139 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:24,139 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 09:49:24,161 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 22
[2020-09-25 09:49:24,167 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 09:49:24,168 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:24,170 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:24,172 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:24,173 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:24,173 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:24,173 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 09:49:24,173 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:24,174 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:24,174 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:24,174 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:24,174 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 09:49:24,174 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:24,185 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117
[2020-09-25 09:49:24,186 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:24,188 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:24,195 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:24,196 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 09:49:24,196 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:24,196 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 09:49:24,196 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:24,197 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:24,197 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:24,197 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:24,197 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 09:49:24,198 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:24,200 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127
[2020-09-25 09:49:24,200 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:24,202 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:24,204 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:24,204 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:24,204 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:24,204 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 09:49:24,205 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:24,205 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:24,205 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:24,205 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 09:49:24,205 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:24,206 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:24,207 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137
[2020-09-25 09:49:24,208 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:24,209 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:24,211 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:24,212 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:24,212 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:24,212 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 09:49:24,212 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:24,213 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:24,213 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:24,213 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 09:49:24,213 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:24,214 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:24,215 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147
[2020-09-25 09:49:24,216 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:24,217 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:24,219 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:24,219 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:24,220 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:24,220 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 09:49:24,220 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:24,220 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:24,220 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:24,221 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 09:49:24,221 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:24,221 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:24,256 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 09:49:24,256 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1124871804]
[2020-09-25 09:49:24,257 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 09:49:24,257 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 09:49:24,257 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369916741]
[2020-09-25 09:49:24,259 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 09:49:24,260 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 09:49:24,260 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 09:49:24,260 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-25 09:49:24,261 INFO  L87              Difference]: Start difference. First operand 394 states and 449 transitions. Second operand 5 states.
[2020-09-25 09:49:24,723 WARN  L193               SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 09:49:25,928 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 09:49:25,929 INFO  L93              Difference]: Finished difference Result 728 states and 884 transitions.
[2020-09-25 09:49:25,930 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-25 09:49:25,930 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 159
[2020-09-25 09:49:25,931 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 09:49:25,940 INFO  L225             Difference]: With dead ends: 728
[2020-09-25 09:49:25,940 INFO  L226             Difference]: Without dead ends: 444
[2020-09-25 09:49:25,943 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-09-25 09:49:25,946 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 444 states.
[2020-09-25 09:49:26,045 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 390.
[2020-09-25 09:49:26,045 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 390 states.
[2020-09-25 09:49:26,051 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 440 transitions.
[2020-09-25 09:49:26,052 INFO  L78                 Accepts]: Start accepts. Automaton has 390 states and 440 transitions. Word has length 159
[2020-09-25 09:49:26,053 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 09:49:26,054 INFO  L479      AbstractCegarLoop]: Abstraction has 390 states and 440 transitions.
[2020-09-25 09:49:26,054 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 09:49:26,054 INFO  L276                IsEmpty]: Start isEmpty. Operand 390 states and 440 transitions.
[2020-09-25 09:49:26,059 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 182
[2020-09-25 09:49:26,059 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 09:49:26,059 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, 1, 1, 1, 1]
[2020-09-25 09:49:26,060 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 09:49:26,060 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 09:49:26,060 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 09:49:26,060 INFO  L82        PathProgramCache]: Analyzing trace with hash -342521873, now seen corresponding path program 1 times
[2020-09-25 09:49:26,061 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 09:49:26,061 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [647840831]
[2020-09-25 09:49:26,061 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 09:49:26,141 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 09:49:26,149 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 09:49:26,150 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 09:49:26,156 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 09:49:26,198 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 09:49:26 BoogieIcfgContainer
[2020-09-25 09:49:26,198 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 09:49:26,202 INFO  L168              Benchmark]: Toolchain (without parser) took 22993.28 ms. Allocated memory was 115.9 MB in the beginning and 455.1 MB in the end (delta: 339.2 MB). Free memory was 72.9 MB in the beginning and 296.7 MB in the end (delta: -223.8 MB). Peak memory consumption was 115.4 MB. Max. memory is 7.1 GB.
[2020-09-25 09:49:26,203 INFO  L168              Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 115.9 MB. Free memory was 91.4 MB in the beginning and 91.3 MB in the end (delta: 104.9 kB). Peak memory consumption was 104.9 kB. Max. memory is 7.1 GB.
[2020-09-25 09:49:26,205 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 788.19 ms. Allocated memory was 115.9 MB in the beginning and 169.9 MB in the end (delta: 54.0 MB). Free memory was 72.3 MB in the beginning and 146.6 MB in the end (delta: -74.3 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB.
[2020-09-25 09:49:26,206 INFO  L168              Benchmark]: Boogie Preprocessor took 95.92 ms. Allocated memory is still 169.9 MB. Free memory was 146.6 MB in the beginning and 142.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB.
[2020-09-25 09:49:26,208 INFO  L168              Benchmark]: RCFGBuilder took 1249.62 ms. Allocated memory was 169.9 MB in the beginning and 186.1 MB in the end (delta: 16.3 MB). Free memory was 142.4 MB in the beginning and 107.6 MB in the end (delta: 34.8 MB). Peak memory consumption was 56.3 MB. Max. memory is 7.1 GB.
[2020-09-25 09:49:26,217 INFO  L168              Benchmark]: TraceAbstraction took 20851.53 ms. Allocated memory was 186.1 MB in the beginning and 455.1 MB in the end (delta: 269.0 MB). Free memory was 107.6 MB in the beginning and 296.7 MB in the end (delta: -189.1 MB). Peak memory consumption was 79.8 MB. Max. memory is 7.1 GB.
[2020-09-25 09:49:26,227 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.29 ms. Allocated memory is still 115.9 MB. Free memory was 91.4 MB in the beginning and 91.3 MB in the end (delta: 104.9 kB). Peak memory consumption was 104.9 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 788.19 ms. Allocated memory was 115.9 MB in the beginning and 169.9 MB in the end (delta: 54.0 MB). Free memory was 72.3 MB in the beginning and 146.6 MB in the end (delta: -74.3 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 95.92 ms. Allocated memory is still 169.9 MB. Free memory was 146.6 MB in the beginning and 142.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1249.62 ms. Allocated memory was 169.9 MB in the beginning and 186.1 MB in the end (delta: 16.3 MB). Free memory was 142.4 MB in the beginning and 107.6 MB in the end (delta: 34.8 MB). Peak memory consumption was 56.3 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 20851.53 ms. Allocated memory was 186.1 MB in the beginning and 455.1 MB in the end (delta: 269.0 MB). Free memory was 107.6 MB in the beginning and 296.7 MB in the end (delta: -189.1 MB). Peak memory consumption was 79.8 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 598]: 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;
[L415]              int pumpRunning  =    0;
[L416]              int systemActive  =    1;
[L672]              int waterLevel  =    1;
[L673]              int methaneLevelCritical  =    0;
[L761]              int cleanupTimeShifts  =    4;
[L837]              int retValue_acc ;
[L838]              int tmp ;
[L842]  FCALL       select_helpers()
[L843]  FCALL       select_features()
[L844]  CALL, EXPR  valid_product()
[L920]              int retValue_acc ;
[L923]              retValue_acc = 1
[L924]              return (retValue_acc);
[L844]  RET, EXPR   valid_product()
[L844]              tmp = valid_product()
[L846]  COND TRUE   \read(tmp)
[L848]  FCALL       setup()
[L849]  CALL        runTest()
[L828]  CALL        test()
[L607]              int splverifierCounter ;
[L608]              int tmp ;
[L609]              int tmp___0 ;
[L610]              int tmp___1 ;
[L611]              int tmp___2 ;
[L614]              splverifierCounter = 0
[L616]  COND TRUE   1
[L618]  COND TRUE   splverifierCounter < 4
[L624]              tmp = __VERIFIER_nondet_int()
[L626]  COND TRUE   \read(tmp)
[L628]  CALL        waterRise()
[L690]  COND TRUE   waterLevel < 2
[L691]              waterLevel = waterLevel + 1
[L628]  RET         waterRise()
[L634]              tmp___0 = __VERIFIER_nondet_int()
[L636]  COND FALSE  !(\read(tmp___0))
[L644]              tmp___2 = __VERIFIER_nondet_int()
[L646]  COND TRUE   \read(tmp___2)
[L659]  CALL        timeShift()
[L423]  COND FALSE  !(\read(pumpRunning))
[L430]  COND TRUE   \read(systemActive)
[L432]  CALL        processEnvironment()
[L478]              int tmp ;
[L481]  COND FALSE  !(\read(pumpRunning))
[L496]  CALL        processEnvironment__wrappee__lowWaterSensor()
[L452]              int tmp ;
[L455]  COND FALSE  !(\read(pumpRunning))
[L470]  FCALL       processEnvironment__wrappee__base()
[L496]  RET         processEnvironment__wrappee__lowWaterSensor()
[L432]  RET         processEnvironment()
[L438]  CALL        __utac_acc__Specification3_spec__1()
[L861]              int tmp ;
[L862]              int tmp___0 ;
[L863]              int tmp___1 ;
[L867]  CALL, EXPR  isMethaneLevelCritical()
[L711]              int retValue_acc ;
[L714]              retValue_acc = methaneLevelCritical
[L715]              return (retValue_acc);
[L867]  RET, EXPR   isMethaneLevelCritical()
[L867]              tmp = isMethaneLevelCritical()
[L869]  COND FALSE  !(\read(tmp))
[L873]  CALL, EXPR  getWaterLevel()
[L743]              int retValue_acc ;
[L746]              retValue_acc = waterLevel
[L747]              return (retValue_acc);
[L873]  RET, EXPR   getWaterLevel()
[L873]              tmp___0 = getWaterLevel()
[L875]  COND TRUE   tmp___0 == 2
[L877]  CALL, EXPR  isPumpRunning()
[L530]              int retValue_acc ;
[L533]              retValue_acc = pumpRunning
[L534]              return (retValue_acc);
[L877]  RET, EXPR   isPumpRunning()
[L877]              tmp___1 = isPumpRunning()
[L879]  COND FALSE  !(\read(tmp___1))
[L883]  CALL        __automaton_fail()
[L598]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 38 procedures, 621 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 20.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 7.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 494 SDtfs, 828 SDslu, 701 SDs, 0 SdLazy, 1516 SolverSat, 259 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=394occurred in iteration=1, 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, 99 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 11.8s InterpolantComputationTime, 493 NumberOfCodeBlocks, 493 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 310 ConstructedInterpolants, 0 QuantifiedInterpolants, 129830 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...