/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_product17.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 16:50:20,591 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 16:50:20,596 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 16:50:20,644 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 16:50:20,646 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 16:50:20,655 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 16:50:20,657 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 16:50:20,662 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 16:50:20,665 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 16:50:20,667 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 16:50:20,668 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 16:50:20,669 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 16:50:20,670 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 16:50:20,673 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 16:50:20,675 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 16:50:20,677 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 16:50:20,677 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 16:50:20,680 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 16:50:20,685 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 16:50:20,689 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 16:50:20,693 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 16:50:20,695 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 16:50:20,697 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 16:50:20,698 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 16:50:20,703 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 16:50:20,704 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 16:50:20,704 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 16:50:20,707 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 16:50:20,708 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 16:50:20,710 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 16:50:20,710 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 16:50:20,711 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 16:50:20,712 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 16:50:20,712 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 16:50:20,714 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 16:50:20,714 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 16:50:20,715 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 16:50:20,715 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 16:50:20,715 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 16:50:20,716 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 16:50:20,718 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 16:50:20,719 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 16:50:20,768 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 16:50:20,769 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 16:50:20,771 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 16:50:20,771 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 16:50:20,772 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 16:50:20,772 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 16:50:20,772 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 16:50:20,773 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 16:50:20,773 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 16:50:20,773 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 16:50:20,774 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 16:50:20,774 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 16:50:20,774 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 16:50:20,775 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 16:50:20,775 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 16:50:20,775 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 16:50:20,776 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 16:50:20,776 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 16:50:20,776 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 16:50:20,776 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 16:50:20,776 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 16:50:20,777 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:50:20,777 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 16:50:20,777 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 16:50:20,777 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 16:50:20,777 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 16:50:20,778 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 16:50:20,778 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 16:50:20,778 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 16:50:20,778 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 16:50:21,218 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 16:50:21,244 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 16:50:21,250 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 16:50:21,252 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 16:50:21,253 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 16:50:21,255 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product17.cil.c
[2020-09-24 16:50:21,345 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c7e836458/500c4c698ba54c2bb83bae11434c74ad/FLAG37944f5f3
[2020-09-24 16:50:21,973 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 16:50:21,974 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product17.cil.c
[2020-09-24 16:50:21,989 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c7e836458/500c4c698ba54c2bb83bae11434c74ad/FLAG37944f5f3
[2020-09-24 16:50:22,241 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c7e836458/500c4c698ba54c2bb83bae11434c74ad
[2020-09-24 16:50:22,258 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 16:50:22,266 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 16:50:22,267 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 16:50:22,267 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 16:50:22,272 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 16:50:22,273 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:50:22" (1/1) ...
[2020-09-24 16:50:22,278 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cc9c326 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:22, skipping insertion in model container
[2020-09-24 16:50:22,278 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:50:22" (1/1) ...
[2020-09-24 16:50:22,288 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 16:50:22,347 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 16:50:22,741 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:50:22,758 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 16:50:23,007 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:50:23,043 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 16:50:23,044 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:23 WrapperNode
[2020-09-24 16:50:23,044 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 16:50:23,045 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 16:50:23,045 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 16:50:23,045 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 16:50:23,062 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:23" (1/1) ...
[2020-09-24 16:50:23,062 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:23" (1/1) ...
[2020-09-24 16:50:23,083 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:23" (1/1) ...
[2020-09-24 16:50:23,084 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:23" (1/1) ...
[2020-09-24 16:50:23,116 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:23" (1/1) ...
[2020-09-24 16:50:23,136 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:23" (1/1) ...
[2020-09-24 16:50:23,145 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:23" (1/1) ...
[2020-09-24 16:50:23,163 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 16:50:23,163 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 16:50:23,163 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 16:50:23,163 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 16:50:23,168 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:23" (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 16:50:23,265 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 16:50:23,265 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 16:50:23,265 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:50:23,265 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 16:50:23,266 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 16:50:23,266 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:50:23,266 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 16:50:23,266 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 16:50:23,267 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 16:50:23,267 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 16:50:23,267 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 16:50:23,267 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 16:50:23,268 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 16:50:23,268 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 16:50:23,268 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 16:50:23,268 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-24 16:50:23,269 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 16:50:23,269 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 16:50:23,269 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 16:50:23,269 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 16:50:23,270 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 16:50:23,270 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 16:50:23,270 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 16:50:23,270 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 16:50:23,270 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 16:50:23,271 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 16:50:23,271 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-24 16:50:23,271 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 16:50:23,271 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 16:50:23,271 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 16:50:23,271 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 16:50:23,272 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 16:50:23,272 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 16:50:23,272 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 16:50:23,272 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 16:50:23,272 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 16:50:23,272 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-24 16:50:23,273 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 16:50:23,273 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 16:50:23,273 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 16:50:23,273 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 16:50:23,273 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 16:50:23,274 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 16:50:23,274 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 16:50:23,274 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 16:50:23,274 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 16:50:23,274 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 16:50:23,274 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 16:50:23,275 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 16:50:23,275 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 16:50:23,275 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:50:23,275 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:50:23,275 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 16:50:23,275 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 16:50:23,276 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 16:50:23,276 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 16:50:23,276 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 16:50:23,276 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 16:50:23,276 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 16:50:23,277 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 16:50:23,277 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 16:50:23,277 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 16:50:23,277 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 16:50:23,277 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-24 16:50:23,277 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 16:50:23,277 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 16:50:23,278 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 16:50:23,278 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 16:50:23,278 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 16:50:23,278 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 16:50:23,278 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 16:50:23,278 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 16:50:23,279 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-24 16:50:23,279 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 16:50:23,279 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 16:50:23,279 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-24 16:50:23,279 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 16:50:23,279 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 16:50:23,280 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 16:50:23,280 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 16:50:23,280 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 16:50:23,280 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 16:50:23,280 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 16:50:23,280 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 16:50:23,281 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 16:50:23,281 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 16:50:23,281 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 16:50:23,281 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 16:50:24,641 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 16:50:24,641 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 16:50:24,655 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:50:24 BoogieIcfgContainer
[2020-09-24 16:50:24,655 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 16:50:24,657 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 16:50:24,657 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 16:50:24,662 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 16:50:24,662 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:50:22" (1/3) ...
[2020-09-24 16:50:24,663 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16d01afe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:50:24, skipping insertion in model container
[2020-09-24 16:50:24,663 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:23" (2/3) ...
[2020-09-24 16:50:24,664 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16d01afe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:50:24, skipping insertion in model container
[2020-09-24 16:50:24,665 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:50:24" (3/3) ...
[2020-09-24 16:50:24,667 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product17.cil.c
[2020-09-24 16:50:24,679 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 16:50:24,695 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 16:50:24,718 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 16:50:24,748 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 16:50:24,748 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 16:50:24,748 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 16:50:24,749 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 16:50:24,749 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 16:50:24,749 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 16:50:24,749 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 16:50:24,749 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 16:50:24,780 INFO  L276                IsEmpty]: Start isEmpty. Operand 292 states.
[2020-09-24 16:50:24,799 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-24 16:50:24,800 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:50:24,801 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 16:50:24,802 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:50:24,810 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:50:24,810 INFO  L82        PathProgramCache]: Analyzing trace with hash 1231247222, now seen corresponding path program 1 times
[2020-09-24 16:50:24,820 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:50:24,821 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1875519708]
[2020-09-24 16:50:24,821 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:50:25,210 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:25,396 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:25,631 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:26,156 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:29,613 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:29,614 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-24 16:50:29,614 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 16:50:29,615 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4388
[2020-09-24 16:50:29,619 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:29,620 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:29,620 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 81
[2020-09-24 16:50:29,620 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 59
[2020-09-24 16:50:29,621 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 16:50:30,094 WARN  L193               SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:50:30,099 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:50:30,145 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:30,188 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:30,436 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:30,436 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:50:30,437 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:30,437 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 290
[2020-09-24 16:50:30,437 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:30,437 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:30,438 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:30,438 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 77
[2020-09-24 16:50:30,438 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:30,507 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:50:30,508 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:30,510 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:30,514 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:30,514 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:50:30,514 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:30,515 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 16:50:30,515 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:30,515 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:30,515 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:30,515 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:50:30,516 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:30,518 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:50:30,519 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:30,521 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:30,524 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:30,525 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:50:30,525 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:30,525 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:50:30,525 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:30,525 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:30,526 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:30,526 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:50:30,526 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:30,528 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:50:30,529 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:30,532 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:30,541 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:30,542 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:50:30,542 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:30,542 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-24 16:50:30,542 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:30,543 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:30,543 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:30,543 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:50:30,543 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:30,546 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:50:30,547 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:30,548 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:30,552 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:30,552 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:50:30,552 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:30,552 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:50:30,553 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:30,553 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:30,553 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:30,553 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:50:30,554 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:30,555 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 16:50:30,556 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:30,558 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:30,560 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:30,561 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:50:30,561 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:30,561 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:50:30,561 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:30,561 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:50:30,562 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:50:30,562 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:50:30,562 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:30,564 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 16:50:30,565 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:30,567 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:30,569 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:30,570 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:50:30,570 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:30,570 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:50:30,570 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:30,570 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:50:30,571 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:50:30,571 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:50:30,571 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:30,573 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-24 16:50:30,574 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:30,575 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:30,577 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:30,578 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:50:30,578 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:30,578 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:50:30,578 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:30,579 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:50:30,579 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:50:30,579 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:50:30,579 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:30,614 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 16:50:30,615 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1875519708]
[2020-09-24 16:50:30,618 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:50:30,618 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-24 16:50:30,619 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312523543]
[2020-09-24 16:50:30,627 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-24 16:50:30,628 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:50:30,651 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-24 16:50:30,652 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-24 16:50:30,655 INFO  L87              Difference]: Start difference. First operand 292 states. Second operand 4 states.
[2020-09-24 16:50:31,328 WARN  L193               SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:50:32,498 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:50:32,499 INFO  L93              Difference]: Finished difference Result 435 states and 517 transitions.
[2020-09-24 16:50:32,500 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-09-24 16:50:32,501 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 153
[2020-09-24 16:50:32,503 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:50:32,524 INFO  L225             Difference]: With dead ends: 435
[2020-09-24 16:50:32,524 INFO  L226             Difference]: Without dead ends: 274
[2020-09-24 16:50:32,530 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 16:50:32,555 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 274 states.
[2020-09-24 16:50:32,674 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 235.
[2020-09-24 16:50:32,676 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 235 states.
[2020-09-24 16:50:32,678 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 252 transitions.
[2020-09-24 16:50:32,680 INFO  L78                 Accepts]: Start accepts. Automaton has 235 states and 252 transitions. Word has length 153
[2020-09-24 16:50:32,681 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:50:32,682 INFO  L479      AbstractCegarLoop]: Abstraction has 235 states and 252 transitions.
[2020-09-24 16:50:32,682 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-24 16:50:32,682 INFO  L276                IsEmpty]: Start isEmpty. Operand 235 states and 252 transitions.
[2020-09-24 16:50:32,686 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 163
[2020-09-24 16:50:32,687 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:50:32,687 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 16:50:32,688 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 16:50:32,688 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:50:32,688 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:50:32,688 INFO  L82        PathProgramCache]: Analyzing trace with hash -23414697, now seen corresponding path program 1 times
[2020-09-24 16:50:32,688 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:50:32,689 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1922267816]
[2020-09-24 16:50:32,689 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:50:32,751 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:32,812 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:33,035 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:35,966 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:35,967 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 199
[2020-09-24 16:50:35,967 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 16:50:35,967 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3211
[2020-09-24 16:50:35,967 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:35,967 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 16:50:35,968 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-24 16:50:35,968 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 105
[2020-09-24 16:50:35,968 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:36,361 WARN  L193               SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:50:36,362 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:50:36,400 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:36,444 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:36,669 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:36,670 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:50:36,670 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:36,670 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 266
[2020-09-24 16:50:36,670 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:36,670 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:36,671 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:36,671 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-24 16:50:36,671 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:36,718 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:50:36,719 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:36,722 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:36,726 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:36,726 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:50:36,727 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:36,727 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 16:50:36,728 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:36,728 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:36,728 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:36,728 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:50:36,729 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:50:36,730 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:50:36,731 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:36,732 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:36,735 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:36,735 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:50:36,735 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:36,736 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:50:36,736 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:36,736 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:36,737 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:36,737 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:50:36,737 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:50:36,739 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:50:36,741 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:36,743 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:36,751 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:36,752 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:50:36,752 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:36,752 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-24 16:50:36,752 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:36,753 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:36,753 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:36,753 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:50:36,753 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:36,755 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:50:36,756 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:36,757 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:36,761 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:36,761 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:50:36,762 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:36,762 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:50:36,762 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:36,763 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:36,763 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:36,763 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:50:36,764 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:50:36,782 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2020-09-24 16:50:36,784 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:36,785 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:36,788 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:36,789 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-24 16:50:36,789 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:36,789 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:50:36,789 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:36,789 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:36,790 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:36,790 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-09-24 16:50:36,790 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:36,792 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 16:50:36,793 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:36,794 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:36,795 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:36,795 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:50:36,796 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:36,796 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:50:36,796 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:36,796 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:50:36,797 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:36,797 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:50:36,797 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:36,798 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130
[2020-09-24 16:50:36,799 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:36,801 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:36,804 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:36,804 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:50:36,805 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:36,805 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:50:36,805 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:36,805 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:36,805 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:36,806 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:50:36,806 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:36,808 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-24 16:50:36,809 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:36,811 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:36,819 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:36,820 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:50:36,820 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:36,823 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 16:50:36,823 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:36,824 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 16:50:36,824 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:36,824 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:50:36,824 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:36,869 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-24 16:50:36,870 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:36,871 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:36,873 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:36,874 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:50:36,874 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:36,874 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:50:36,874 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:36,877 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:50:36,878 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:50:36,878 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:50:36,878 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-24 16:50:36,924 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 16:50:36,925 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1922267816]
[2020-09-24 16:50:36,925 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:50:36,925 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2020-09-24 16:50:36,925 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153325127]
[2020-09-24 16:50:36,928 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-09-24 16:50:36,929 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:50:36,929 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-09-24 16:50:36,929 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90
[2020-09-24 16:50:36,929 INFO  L87              Difference]: Start difference. First operand 235 states and 252 transitions. Second operand 10 states.
[2020-09-24 16:50:37,506 WARN  L193               SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:50:39,064 WARN  L193               SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:50:39,697 WARN  L193               SmtUtils]: Spent 583.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192
[2020-09-24 16:50:40,035 WARN  L193               SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:50:40,418 WARN  L193               SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-24 16:50:40,756 WARN  L193               SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:50:41,220 WARN  L193               SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:50:41,565 WARN  L193               SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 192
[2020-09-24 16:50:42,047 WARN  L193               SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:50:43,381 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:50:43,382 INFO  L93              Difference]: Finished difference Result 587 states and 734 transitions.
[2020-09-24 16:50:43,383 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2020-09-24 16:50:43,383 INFO  L78                 Accepts]: Start accepts. Automaton has 10 states. Word has length 162
[2020-09-24 16:50:43,384 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:50:43,389 INFO  L225             Difference]: With dead ends: 587
[2020-09-24 16:50:43,390 INFO  L226             Difference]: Without dead ends: 438
[2020-09-24 16:50:43,393 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 16:50:43,395 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 438 states.
[2020-09-24 16:50:43,466 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 345.
[2020-09-24 16:50:43,466 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 345 states.
[2020-09-24 16:50:43,468 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 380 transitions.
[2020-09-24 16:50:43,469 INFO  L78                 Accepts]: Start accepts. Automaton has 345 states and 380 transitions. Word has length 162
[2020-09-24 16:50:43,469 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:50:43,470 INFO  L479      AbstractCegarLoop]: Abstraction has 345 states and 380 transitions.
[2020-09-24 16:50:43,470 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-09-24 16:50:43,470 INFO  L276                IsEmpty]: Start isEmpty. Operand 345 states and 380 transitions.
[2020-09-24 16:50:43,475 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 177
[2020-09-24 16:50:43,475 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:50:43,475 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 16:50:43,475 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 16:50:43,476 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:50:43,476 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:50:43,476 INFO  L82        PathProgramCache]: Analyzing trace with hash 558510229, now seen corresponding path program 1 times
[2020-09-24 16:50:43,476 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:50:43,477 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [746510426]
[2020-09-24 16:50:43,477 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:50:43,546 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-24 16:50:43,556 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-24 16:50:43,557 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 16:50:43,562 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 16:50:43,588 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 04:50:43 BoogieIcfgContainer
[2020-09-24 16:50:43,588 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 16:50:43,590 INFO  L168              Benchmark]: Toolchain (without parser) took 21330.89 ms. Allocated memory was 140.5 MB in the beginning and 471.9 MB in the end (delta: 331.4 MB). Free memory was 102.0 MB in the beginning and 161.0 MB in the end (delta: -59.0 MB). Peak memory consumption was 272.4 MB. Max. memory is 7.1 GB.
[2020-09-24 16:50:43,591 INFO  L168              Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-09-24 16:50:43,592 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 777.56 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 101.4 MB in the beginning and 174.7 MB in the end (delta: -73.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB.
[2020-09-24 16:50:43,593 INFO  L168              Benchmark]: Boogie Preprocessor took 117.66 ms. Allocated memory is still 204.5 MB. Free memory was 174.7 MB in the beginning and 170.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB.
[2020-09-24 16:50:43,594 INFO  L168              Benchmark]: RCFGBuilder took 1492.14 ms. Allocated memory was 204.5 MB in the beginning and 235.9 MB in the end (delta: 31.5 MB). Free memory was 170.7 MB in the beginning and 179.6 MB in the end (delta: -9.0 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB.
[2020-09-24 16:50:43,595 INFO  L168              Benchmark]: TraceAbstraction took 18931.66 ms. Allocated memory was 235.9 MB in the beginning and 471.9 MB in the end (delta: 235.9 MB). Free memory was 179.6 MB in the beginning and 161.0 MB in the end (delta: 18.6 MB). Peak memory consumption was 254.6 MB. Max. memory is 7.1 GB.
[2020-09-24 16:50:43,599 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.26 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 777.56 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 101.4 MB in the beginning and 174.7 MB in the end (delta: -73.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 117.66 ms. Allocated memory is still 204.5 MB. Free memory was 174.7 MB in the beginning and 170.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1492.14 ms. Allocated memory was 204.5 MB in the beginning and 235.9 MB in the end (delta: 31.5 MB). Free memory was 170.7 MB in the beginning and 179.6 MB in the end (delta: -9.0 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 18931.66 ms. Allocated memory was 235.9 MB in the beginning and 471.9 MB in the end (delta: 235.9 MB). Free memory was 179.6 MB in the beginning and 161.0 MB in the end (delta: 18.6 MB). Peak memory consumption was 254.6 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 506]: 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;
[L413]              int waterLevel  =    1;
[L414]              int methaneLevelCritical  =    0;
[L582]              int pumpRunning  =    0;
[L583]              int systemActive  =    1;
[L735]              int cleanupTimeShifts  =    4;
[L811]              int retValue_acc ;
[L812]              int tmp ;
[L816]  FCALL       select_helpers()
[L817]  FCALL       select_features()
[L818]  CALL, EXPR  valid_product()
[L860]              int retValue_acc ;
[L863]              retValue_acc = 1
[L864]              return (retValue_acc);
[L818]  RET, EXPR   valid_product()
[L818]              tmp = valid_product()
[L820]  COND TRUE   \read(tmp)
[L822]  FCALL       setup()
[L823]  CALL        runTest()
[L802]  CALL        test()
[L514]              int splverifierCounter ;
[L515]              int tmp ;
[L516]              int tmp___0 ;
[L517]              int tmp___1 ;
[L518]              int tmp___2 ;
[L521]              splverifierCounter = 0
[L523]  COND TRUE   1
[L525]  COND TRUE   splverifierCounter < 4
[L531]              tmp = __VERIFIER_nondet_int()
[L533]  COND TRUE   \read(tmp)
[L535]  CALL        waterRise()
[L431]  COND TRUE   waterLevel < 2
[L432]              waterLevel = waterLevel + 1
[L535]  RET         waterRise()
[L541]              tmp___0 = __VERIFIER_nondet_int()
[L543]  COND FALSE  !(\read(tmp___0))
[L551]              tmp___2 = __VERIFIER_nondet_int()
[L553]  COND TRUE   \read(tmp___2)
[L566]  CALL        timeShift()
[L590]  COND FALSE  !(\read(pumpRunning))
[L597]  COND TRUE   \read(systemActive)
[L599]  CALL        processEnvironment()
[L619]              int tmp ;
[L622]  COND FALSE  !(\read(pumpRunning))
[L637]  FCALL       processEnvironment__wrappee__base()
[L599]  RET         processEnvironment()
[L605]  CALL        __utac_acc__Specification3_spec__1()
[L870]              int tmp ;
[L871]              int tmp___0 ;
[L872]              int tmp___1 ;
[L876]  CALL, EXPR  isMethaneLevelCritical()
[L452]              int retValue_acc ;
[L455]              retValue_acc = methaneLevelCritical
[L456]              return (retValue_acc);
[L876]  RET, EXPR   isMethaneLevelCritical()
[L876]              tmp = isMethaneLevelCritical()
[L878]  COND FALSE  !(\read(tmp))
[L882]  CALL, EXPR  getWaterLevel()
[L484]              int retValue_acc ;
[L487]              retValue_acc = waterLevel
[L488]              return (retValue_acc);
[L882]  RET, EXPR   getWaterLevel()
[L882]              tmp___0 = getWaterLevel()
[L884]  COND TRUE   tmp___0 == 2
[L886]  CALL, EXPR  isPumpRunning()
[L671]              int retValue_acc ;
[L674]              retValue_acc = pumpRunning
[L675]              return (retValue_acc);
[L886]  RET, EXPR   isPumpRunning()
[L886]              tmp___1 = isPumpRunning()
[L888]  COND FALSE  !(\read(tmp___1))
[L892]  CALL        __automaton_fail()
[L506]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 37 procedures, 609 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 8.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 458 SDtfs, 818 SDslu, 756 SDs, 0 SdLazy, 1573 SolverSat, 256 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=345occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 132 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 9.4s InterpolantComputationTime, 491 NumberOfCodeBlocks, 491 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 313 ConstructedInterpolants, 0 QuantifiedInterpolants, 140075 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...