/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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product13.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 16:50:13,517 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 16:50:13,521 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 16:50:13,547 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 16:50:13,547 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 16:50:13,549 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 16:50:13,550 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 16:50:13,552 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 16:50:13,554 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 16:50:13,555 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 16:50:13,556 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 16:50:13,557 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 16:50:13,557 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 16:50:13,559 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 16:50:13,560 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 16:50:13,561 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 16:50:13,562 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 16:50:13,563 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 16:50:13,564 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 16:50:13,566 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 16:50:13,568 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 16:50:13,569 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 16:50:13,570 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 16:50:13,571 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 16:50:13,574 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 16:50:13,574 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 16:50:13,574 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 16:50:13,575 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 16:50:13,576 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 16:50:13,577 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 16:50:13,577 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 16:50:13,578 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 16:50:13,579 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 16:50:13,580 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 16:50:13,581 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 16:50:13,581 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 16:50:13,582 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 16:50:13,582 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 16:50:13,582 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 16:50:13,583 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 16:50:13,584 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 16:50:13,585 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-24 16:50:13,620 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 16:50:13,620 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 16:50:13,623 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 16:50:13,623 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 16:50:13,623 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 16:50:13,623 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 16:50:13,624 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 16:50:13,624 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 16:50:13,624 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 16:50:13,624 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 16:50:13,625 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 16:50:13,626 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 16:50:13,626 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 16:50:13,626 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 16:50:13,627 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 16:50:13,627 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 16:50:13,627 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 16:50:13,628 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 16:50:13,628 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 16:50:13,628 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 16:50:13,629 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 16:50:13,629 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:50:13,629 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 16:50:13,629 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 16:50:13,629 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 16:50:13,630 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 16:50:13,630 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 16:50:13,630 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 16:50:13,630 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 16:50:13,630 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;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;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;log-additional-information=true;
[2020-09-24 16:50:14,116 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 16:50:14,132 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 16:50:14,138 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 16:50:14,140 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 16:50:14,141 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 16:50:14,143 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product13.cil.c
[2020-09-24 16:50:14,229 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/827b51465/0e7222c8a66341018007d52a18eb2727/FLAGcd1ddf04a
[2020-09-24 16:50:14,808 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 16:50:14,809 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product13.cil.c
[2020-09-24 16:50:14,836 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/827b51465/0e7222c8a66341018007d52a18eb2727/FLAGcd1ddf04a
[2020-09-24 16:50:15,066 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/827b51465/0e7222c8a66341018007d52a18eb2727
[2020-09-24 16:50:15,082 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 16:50:15,087 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 16:50:15,090 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 16:50:15,090 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 16:50:15,095 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 16:50:15,096 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:50:15" (1/1) ...
[2020-09-24 16:50:15,101 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11a529ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:15, skipping insertion in model container
[2020-09-24 16:50:15,101 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:50:15" (1/1) ...
[2020-09-24 16:50:15,111 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 16:50:15,183 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 16:50:15,602 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:50:15,619 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 16:50:15,820 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:50:15,880 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 16:50:15,881 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:15 WrapperNode
[2020-09-24 16:50:15,881 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 16:50:15,882 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 16:50:15,882 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 16:50:15,882 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 16:50:15,896 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:15" (1/1) ...
[2020-09-24 16:50:15,896 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:15" (1/1) ...
[2020-09-24 16:50:15,918 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:15" (1/1) ...
[2020-09-24 16:50:15,918 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:15" (1/1) ...
[2020-09-24 16:50:15,966 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:15" (1/1) ...
[2020-09-24 16:50:15,982 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:15" (1/1) ...
[2020-09-24 16:50:15,988 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:15" (1/1) ...
[2020-09-24 16:50:15,996 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 16:50:15,997 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 16:50:15,997 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 16:50:15,997 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 16:50:15,999 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:15" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:50:16,078 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 16:50:16,079 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 16:50:16,079 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:50:16,079 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 16:50:16,079 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 16:50:16,080 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 16:50:16,080 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 16:50:16,080 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 16:50:16,080 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 16:50:16,080 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 16:50:16,080 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 16:50:16,081 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 16:50:16,081 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 16:50:16,081 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 16:50:16,081 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 16:50:16,081 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 16:50:16,082 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 16:50:16,082 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 16:50:16,082 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 16:50:16,082 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 16:50:16,082 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery
[2020-09-24 16:50:16,083 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 16:50:16,083 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base
[2020-09-24 16:50:16,083 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 16:50:16,083 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 16:50:16,083 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 16:50:16,084 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 16:50:16,084 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 16:50:16,084 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-24 16:50:16,084 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 16:50:16,084 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 16:50:16,084 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 16:50:16,085 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:50:16,085 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 16:50:16,085 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 16:50:16,085 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 16:50:16,085 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 16:50:16,086 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 16:50:16,086 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 16:50:16,086 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 16:50:16,086 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 16:50:16,086 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 16:50:16,087 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 16:50:16,087 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 16:50:16,087 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 16:50:16,087 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 16:50:16,087 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 16:50:16,088 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 16:50:16,088 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 16:50:16,088 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 16:50:16,088 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 16:50:16,088 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 16:50:16,088 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 16:50:16,089 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 16:50:16,089 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 16:50:16,089 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 16:50:16,089 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 16:50:16,089 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 16:50:16,090 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 16:50:16,090 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 16:50:16,090 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 16:50:16,090 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 16:50:16,090 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-24 16:50:16,090 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 16:50:16,091 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery
[2020-09-24 16:50:16,091 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 16:50:16,091 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base
[2020-09-24 16:50:16,091 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 16:50:16,091 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 16:50:16,091 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 16:50:16,092 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 16:50:16,092 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 16:50:16,092 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 16:50:16,092 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 16:50:16,092 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 16:50:16,092 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 16:50:16,093 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 16:50:16,093 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:50:16,093 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:50:16,093 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 16:50:16,093 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 16:50:16,093 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 16:50:16,094 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 16:50:16,094 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 16:50:16,094 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 16:50:16,094 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 16:50:17,300 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 16:50:17,301 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 16:50:17,308 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:50:17 BoogieIcfgContainer
[2020-09-24 16:50:17,308 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 16:50:17,309 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 16:50:17,310 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 16:50:17,313 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 16:50:17,314 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:50:15" (1/3) ...
[2020-09-24 16:50:17,314 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75af9cfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:50:17, skipping insertion in model container
[2020-09-24 16:50:17,315 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:15" (2/3) ...
[2020-09-24 16:50:17,315 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75af9cfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:50:17, skipping insertion in model container
[2020-09-24 16:50:17,315 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:50:17" (3/3) ...
[2020-09-24 16:50:17,317 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product13.cil.c
[2020-09-24 16:50:17,330 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 16:50:17,341 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 16:50:17,363 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 16:50:17,394 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 16:50:17,394 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 16:50:17,394 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 16:50:17,394 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 16:50:17,394 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 16:50:17,395 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 16:50:17,395 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 16:50:17,395 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 16:50:17,421 INFO  L276                IsEmpty]: Start isEmpty. Operand 285 states.
[2020-09-24 16:50:17,439 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-24 16:50:17,439 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:50:17,441 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 16:50:17,441 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:50:17,447 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:50:17,448 INFO  L82        PathProgramCache]: Analyzing trace with hash -1381778522, now seen corresponding path program 1 times
[2020-09-24 16:50:17,458 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:50:17,459 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1454025319]
[2020-09-24 16:50:17,459 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:50:17,780 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:17,909 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:18,153 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:18,688 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:22,044 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:22,045 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-24 16:50:22,045 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 16:50:22,045 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4254
[2020-09-24 16:50:22,048 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:22,051 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:22,057 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 81
[2020-09-24 16:50:22,057 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 59
[2020-09-24 16:50:22,058 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 11
[2020-09-24 16:50:22,559 WARN  L193               SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:50:22,562 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:50:22,609 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:22,664 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:23,014 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:23,015 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:50:23,015 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:23,015 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 404
[2020-09-24 16:50:23,015 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:23,016 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:23,016 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:23,016 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 77
[2020-09-24 16:50:23,017 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:50:23,097 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:50:23,099 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:23,101 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:23,106 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:23,106 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:50:23,106 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:23,107 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 16:50:23,107 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:23,107 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:23,108 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:23,108 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:50:23,109 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:50:23,111 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:50:23,112 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:23,114 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:23,118 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:23,119 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:50:23,119 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:23,119 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 16:50:23,119 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:23,120 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:23,120 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:23,120 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:50:23,120 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:23,122 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:50:23,124 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:23,126 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:23,136 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:23,136 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:50:23,137 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:23,137 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-24 16:50:23,138 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:23,138 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:23,138 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:23,139 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:50:23,139 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:50:23,142 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:50:23,143 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:23,144 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:23,148 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:23,149 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:50:23,149 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:23,149 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 16:50:23,150 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:23,150 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:23,151 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:23,151 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:50:23,152 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:50:23,154 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 16:50:23,155 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:23,157 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:23,159 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:23,160 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:50:23,160 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:23,161 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:50:23,161 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:23,162 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:50:23,162 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:50:23,162 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:50:23,163 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:50:23,165 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 16:50:23,166 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:23,168 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:23,171 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:23,171 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:50:23,171 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:23,172 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:50:23,172 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:23,172 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:50:23,172 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:50:23,173 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:50:23,173 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:50:23,176 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-24 16:50:23,177 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:23,179 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:23,182 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:23,182 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:50:23,183 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:23,183 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:50:23,183 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:23,184 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:50:23,184 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:50:23,185 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:50:23,185 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:50:23,231 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 16:50:23,232 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1454025319]
[2020-09-24 16:50:23,235 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:50:23,235 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-24 16:50:23,236 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182393183]
[2020-09-24 16:50:23,243 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-24 16:50:23,244 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:50:23,264 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-24 16:50:23,265 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-24 16:50:23,268 INFO  L87              Difference]: Start difference. First operand 285 states. Second operand 4 states.
[2020-09-24 16:50:23,872 WARN  L193               SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:50:24,875 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:50:24,875 INFO  L93              Difference]: Finished difference Result 413 states and 495 transitions.
[2020-09-24 16:50:24,876 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-09-24 16:50:24,878 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 153
[2020-09-24 16:50:24,879 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:50:24,898 INFO  L225             Difference]: With dead ends: 413
[2020-09-24 16:50:24,898 INFO  L226             Difference]: Without dead ends: 263
[2020-09-24 16:50:24,904 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-24 16:50:24,929 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 263 states.
[2020-09-24 16:50:25,011 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 224.
[2020-09-24 16:50:25,013 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 224 states.
[2020-09-24 16:50:25,016 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 241 transitions.
[2020-09-24 16:50:25,021 INFO  L78                 Accepts]: Start accepts. Automaton has 224 states and 241 transitions. Word has length 153
[2020-09-24 16:50:25,022 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:50:25,022 INFO  L479      AbstractCegarLoop]: Abstraction has 224 states and 241 transitions.
[2020-09-24 16:50:25,023 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-24 16:50:25,023 INFO  L276                IsEmpty]: Start isEmpty. Operand 224 states and 241 transitions.
[2020-09-24 16:50:25,032 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 163
[2020-09-24 16:50:25,035 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:50:25,035 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]
[2020-09-24 16:50:25,036 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 16:50:25,036 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:50:25,036 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:50:25,037 INFO  L82        PathProgramCache]: Analyzing trace with hash -483047781, now seen corresponding path program 1 times
[2020-09-24 16:50:25,037 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:50:25,037 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1233186735]
[2020-09-24 16:50:25,037 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:50:25,101 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:25,161 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:25,401 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:28,342 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:28,343 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 199
[2020-09-24 16:50:28,343 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 16:50:28,343 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3237
[2020-09-24 16:50:28,343 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:28,344 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 16:50:28,344 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 77
[2020-09-24 16:50:28,344 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 106
[2020-09-24 16:50:28,344 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:28,704 WARN  L193               SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:50:28,705 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:50:28,736 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:28,773 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:28,977 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:28,977 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:50:28,978 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:28,978 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 238
[2020-09-24 16:50:28,978 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:28,978 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:28,979 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:28,979 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 73
[2020-09-24 16:50:28,979 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:50:29,030 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:50:29,031 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:29,033 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:29,037 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:29,037 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:50:29,038 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:29,038 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 16:50:29,038 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:29,038 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:29,039 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:29,039 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:50:29,039 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:50:29,041 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:50:29,042 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:29,051 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:29,054 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:29,055 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:50:29,055 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:29,055 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-24 16:50:29,056 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:29,056 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:29,056 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:29,056 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:50:29,057 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:50:29,058 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:50:29,061 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:29,063 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:29,071 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:29,071 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:50:29,071 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:29,072 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 16:50:29,072 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:29,072 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:29,073 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:29,073 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:50:29,073 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:50:29,076 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:50:29,077 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:29,079 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:29,081 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:29,082 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:50:29,082 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:29,082 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:50:29,083 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:29,083 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:29,083 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:29,083 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:50:29,084 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:50:29,100 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2020-09-24 16:50:29,101 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:29,103 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:29,107 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:29,108 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-24 16:50:29,108 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:29,108 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 16:50:29,109 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:29,109 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:29,109 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:29,109 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-09-24 16:50:29,110 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:50:29,112 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 16:50:29,113 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:29,114 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:29,116 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:29,116 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:50:29,117 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:29,117 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:50:29,117 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:29,117 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:50:29,118 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:29,118 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:50:29,118 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:50:29,119 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130
[2020-09-24 16:50:29,121 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:29,122 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:29,129 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:29,129 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:50:29,129 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:29,130 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 16:50:29,130 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:29,130 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:29,131 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:29,131 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:50:29,159 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 28
[2020-09-24 16:50:29,161 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-24 16:50:29,165 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:29,167 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:29,174 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:29,174 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:50:29,174 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:29,175 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 16:50:29,175 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:29,175 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 16:50:29,175 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:29,176 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:50:29,176 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:29,219 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-24 16:50:29,220 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:29,221 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:29,223 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:29,223 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:50:29,223 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:29,223 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:50:29,224 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:29,224 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:50:29,224 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:50:29,224 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:50:29,225 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:29,259 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 16:50:29,260 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1233186735]
[2020-09-24 16:50:29,260 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:50:29,260 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2020-09-24 16:50:29,260 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721461470]
[2020-09-24 16:50:29,262 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-09-24 16:50:29,263 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:50:29,263 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-09-24 16:50:29,263 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90
[2020-09-24 16:50:29,263 INFO  L87              Difference]: Start difference. First operand 224 states and 241 transitions. Second operand 10 states.
[2020-09-24 16:50:29,836 WARN  L193               SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:50:31,603 WARN  L193               SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:50:32,280 WARN  L193               SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192
[2020-09-24 16:50:32,664 WARN  L193               SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:50:33,006 WARN  L193               SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-24 16:50:33,315 WARN  L193               SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:50:33,801 WARN  L193               SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:50:34,120 WARN  L193               SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 192
[2020-09-24 16:50:34,491 WARN  L193               SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:50:35,360 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:50:35,361 INFO  L93              Difference]: Finished difference Result 554 states and 701 transitions.
[2020-09-24 16:50:35,361 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2020-09-24 16:50:35,361 INFO  L78                 Accepts]: Start accepts. Automaton has 10 states. Word has length 162
[2020-09-24 16:50:35,363 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:50:35,370 INFO  L225             Difference]: With dead ends: 554
[2020-09-24 16:50:35,370 INFO  L226             Difference]: Without dead ends: 416
[2020-09-24 16:50:35,374 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380
[2020-09-24 16:50:35,375 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 416 states.
[2020-09-24 16:50:35,439 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 323.
[2020-09-24 16:50:35,440 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 323 states.
[2020-09-24 16:50:35,442 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 358 transitions.
[2020-09-24 16:50:35,443 INFO  L78                 Accepts]: Start accepts. Automaton has 323 states and 358 transitions. Word has length 162
[2020-09-24 16:50:35,443 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:50:35,443 INFO  L479      AbstractCegarLoop]: Abstraction has 323 states and 358 transitions.
[2020-09-24 16:50:35,443 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-09-24 16:50:35,443 INFO  L276                IsEmpty]: Start isEmpty. Operand 323 states and 358 transitions.
[2020-09-24 16:50:35,447 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 177
[2020-09-24 16:50:35,447 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:50:35,447 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]
[2020-09-24 16:50:35,448 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 16:50:35,448 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:50:35,448 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:50:35,448 INFO  L82        PathProgramCache]: Analyzing trace with hash -426197068, now seen corresponding path program 1 times
[2020-09-24 16:50:35,448 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:50:35,449 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2083047365]
[2020-09-24 16:50:35,449 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:50:35,519 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-24 16:50:35,531 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-24 16:50:35,531 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 16:50:35,538 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 16:50:35,578 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 04:50:35 BoogieIcfgContainer
[2020-09-24 16:50:35,578 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 16:50:35,581 INFO  L168              Benchmark]: Toolchain (without parser) took 20497.03 ms. Allocated memory was 146.8 MB in the beginning and 528.5 MB in the end (delta: 381.7 MB). Free memory was 102.3 MB in the beginning and 242.2 MB in the end (delta: -139.9 MB). Peak memory consumption was 241.8 MB. Max. memory is 7.1 GB.
[2020-09-24 16:50:35,583 INFO  L168              Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-24 16:50:35,584 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 791.65 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 101.7 MB in the beginning and 173.9 MB in the end (delta: -72.2 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB.
[2020-09-24 16:50:35,585 INFO  L168              Benchmark]: Boogie Preprocessor took 114.54 ms. Allocated memory is still 203.4 MB. Free memory was 173.9 MB in the beginning and 169.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB.
[2020-09-24 16:50:35,587 INFO  L168              Benchmark]: RCFGBuilder took 1311.55 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 169.7 MB in the beginning and 182.1 MB in the end (delta: -12.4 MB). Peak memory consumption was 86.2 MB. Max. memory is 7.1 GB.
[2020-09-24 16:50:35,594 INFO  L168              Benchmark]: TraceAbstraction took 18268.88 ms. Allocated memory was 236.5 MB in the beginning and 528.5 MB in the end (delta: 292.0 MB). Free memory was 182.1 MB in the beginning and 242.2 MB in the end (delta: -60.2 MB). Peak memory consumption was 231.9 MB. Max. memory is 7.1 GB.
[2020-09-24 16:50:35,605 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.25 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 791.65 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 101.7 MB in the beginning and 173.9 MB in the end (delta: -72.2 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 114.54 ms. Allocated memory is still 203.4 MB. Free memory was 173.9 MB in the beginning and 169.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1311.55 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 169.7 MB in the beginning and 182.1 MB in the end (delta: -12.4 MB). Peak memory consumption was 86.2 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 18268.88 ms. Allocated memory was 236.5 MB in the beginning and 528.5 MB in the end (delta: 292.0 MB). Free memory was 182.1 MB in the beginning and 242.2 MB in the end (delta: -60.2 MB). Peak memory consumption was 231.9 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 168]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L46]               int waterLevel  =    1;
[L47]               int methaneLevelCritical  =    0;
[L173]              int cleanupTimeShifts  =    4;
[L275]              int pumpRunning  =    0;
[L276]              int systemActive  =    1;
[L694]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L249]              int retValue_acc ;
[L250]              int tmp ;
[L254]  FCALL       select_helpers()
[L255]  FCALL       select_features()
[L256]  CALL, EXPR  valid_product()
[L155]              int retValue_acc ;
[L158]              retValue_acc = 1
[L159]              return (retValue_acc);
[L256]  RET, EXPR   valid_product()
[L256]              tmp = valid_product()
[L258]  COND TRUE   \read(tmp)
[L260]  FCALL       setup()
[L261]  CALL        runTest()
[L243]  CALL        test()
[L461]              int splverifierCounter ;
[L462]              int tmp ;
[L463]              int tmp___0 ;
[L464]              int tmp___1 ;
[L465]              int tmp___2 ;
[L468]              splverifierCounter = 0
[L470]  COND TRUE   1
[L472]  COND TRUE   splverifierCounter < 4
[L478]              tmp = __VERIFIER_nondet_int()
[L480]  COND TRUE   \read(tmp)
[L482]  CALL        waterRise()
[L64]   COND TRUE   waterLevel < 2
[L65]               waterLevel = waterLevel + 1
[L482]  RET         waterRise()
[L488]              tmp___0 = __VERIFIER_nondet_int()
[L490]  COND FALSE  !(\read(tmp___0))
[L498]              tmp___2 = __VERIFIER_nondet_int()
[L500]  COND TRUE   \read(tmp___2)
[L513]  CALL        timeShift()
[L283]  COND FALSE  !(\read(pumpRunning))
[L290]  COND TRUE   \read(systemActive)
[L292]  CALL        processEnvironment()
[L312]              int tmp ;
[L315]  COND FALSE  !(\read(pumpRunning))
[L330]  FCALL       processEnvironment__wrappee__methaneQuery()
[L292]  RET         processEnvironment()
[L298]  CALL        __utac_acc__Specification3_spec__1()
[L427]              int tmp ;
[L428]              int tmp___0 ;
[L429]              int tmp___1 ;
[L433]  CALL, EXPR  isMethaneLevelCritical()
[L85]               int retValue_acc ;
[L88]               retValue_acc = methaneLevelCritical
[L89]               return (retValue_acc);
[L433]  RET, EXPR   isMethaneLevelCritical()
[L433]              tmp = isMethaneLevelCritical()
[L435]  COND FALSE  !(\read(tmp))
[L439]  CALL, EXPR  getWaterLevel()
[L117]              int retValue_acc ;
[L120]              retValue_acc = waterLevel
[L121]              return (retValue_acc);
[L439]  RET, EXPR   getWaterLevel()
[L439]              tmp___0 = getWaterLevel()
[L441]  COND TRUE   tmp___0 == 2
[L443]  CALL, EXPR  isPumpRunning()
[L381]              int retValue_acc ;
[L384]              retValue_acc = pumpRunning
[L385]              return (retValue_acc);
[L443]  RET, EXPR   isPumpRunning()
[L443]              tmp___1 = isPumpRunning()
[L445]  COND FALSE  !(\read(tmp___1))
[L449]  CALL        __automaton_fail()
[L168]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 36 procedures, 599 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 7.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 443 SDtfs, 753 SDslu, 774 SDs, 0 SdLazy, 1499 SolverSat, 250 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=323occurred 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: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 132 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 9.5s InterpolantComputationTime, 491 NumberOfCodeBlocks, 491 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 313 ConstructedInterpolants, 0 QuantifiedInterpolants, 140397 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...