/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 SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product02.cil.c


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


This is Ultimate 0.1.25-adbd35c
[2020-10-12 17:56:20,468 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-10-12 17:56:20,471 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-10-12 17:56:20,512 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-10-12 17:56:20,513 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-10-12 17:56:20,521 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-10-12 17:56:20,523 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-10-12 17:56:20,526 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-10-12 17:56:20,529 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-10-12 17:56:20,533 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-10-12 17:56:20,534 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-10-12 17:56:20,535 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-10-12 17:56:20,535 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-10-12 17:56:20,538 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-10-12 17:56:20,540 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-10-12 17:56:20,542 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-10-12 17:56:20,543 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-10-12 17:56:20,544 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-10-12 17:56:20,546 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-10-12 17:56:20,554 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-10-12 17:56:20,556 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-10-12 17:56:20,557 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-10-12 17:56:20,558 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-10-12 17:56:20,559 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-10-12 17:56:20,571 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-10-12 17:56:20,571 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-10-12 17:56:20,571 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-10-12 17:56:20,577 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-10-12 17:56:20,578 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-10-12 17:56:20,579 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-10-12 17:56:20,579 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-10-12 17:56:20,580 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-10-12 17:56:20,584 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-10-12 17:56:20,585 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-10-12 17:56:20,586 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-10-12 17:56:20,586 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-10-12 17:56:20,587 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-10-12 17:56:20,588 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-10-12 17:56:20,589 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-10-12 17:56:20,590 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-10-12 17:56:20,590 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-10-12 17:56:20,591 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
[2020-10-12 17:56:20,626 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-10-12 17:56:20,626 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-10-12 17:56:20,627 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-10-12 17:56:20,627 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-10-12 17:56:20,628 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-10-12 17:56:20,628 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-10-12 17:56:20,628 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-10-12 17:56:20,628 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-10-12 17:56:20,628 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-10-12 17:56:20,629 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-10-12 17:56:20,629 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-10-12 17:56:20,629 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-10-12 17:56:20,629 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-10-12 17:56:20,629 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-10-12 17:56:20,630 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-10-12 17:56:20,630 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-10-12 17:56:20,630 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-10-12 17:56:20,630 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-10-12 17:56:20,630 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-10-12 17:56:20,631 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-10-12 17:56:20,631 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-10-12 17:56:20,631 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-12 17:56:20,631 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-10-12 17:56:20,631 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-10-12 17:56:20,631 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-10-12 17:56:20,632 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-10-12 17:56:20,632 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-10-12 17:56:20,632 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-10-12 17:56:20,632 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-10-12 17:56:20,632 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 -> SequenceOfStatements
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true;
[2020-10-12 17:56:20,925 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-10-12 17:56:20,946 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-10-12 17:56:20,950 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-10-12 17:56:20,952 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-10-12 17:56:20,953 INFO  L275        PluginConnector]: CDTParser initialized
[2020-10-12 17:56:20,953 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product02.cil.c
[2020-10-12 17:56:21,017 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/64d15c2d1/4dfb77252b334d1fa6c0751b6846118a/FLAG41f483a42
[2020-10-12 17:56:21,568 INFO  L306              CDTParser]: Found 1 translation units.
[2020-10-12 17:56:21,568 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product02.cil.c
[2020-10-12 17:56:21,600 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/64d15c2d1/4dfb77252b334d1fa6c0751b6846118a/FLAG41f483a42
[2020-10-12 17:56:21,854 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/64d15c2d1/4dfb77252b334d1fa6c0751b6846118a
[2020-10-12 17:56:21,863 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-10-12 17:56:21,865 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-10-12 17:56:21,866 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-10-12 17:56:21,866 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-10-12 17:56:21,869 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-10-12 17:56:21,870 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:56:21" (1/1) ...
[2020-10-12 17:56:21,873 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bcf94a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:56:21, skipping insertion in model container
[2020-10-12 17:56:21,873 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:56:21" (1/1) ...
[2020-10-12 17:56:21,881 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-10-12 17:56:21,941 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-10-12 17:56:22,397 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-12 17:56:22,413 INFO  L203         MainTranslator]: Completed pre-run
[2020-10-12 17:56:22,565 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-12 17:56:22,598 INFO  L208         MainTranslator]: Completed translation
[2020-10-12 17:56:22,599 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:56:22 WrapperNode
[2020-10-12 17:56:22,599 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-10-12 17:56:22,600 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-10-12 17:56:22,600 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-10-12 17:56:22,600 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-10-12 17:56:22,612 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:56:22" (1/1) ...
[2020-10-12 17:56:22,613 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:56:22" (1/1) ...
[2020-10-12 17:56:22,633 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:56:22" (1/1) ...
[2020-10-12 17:56:22,633 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:56:22" (1/1) ...
[2020-10-12 17:56:22,664 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:56:22" (1/1) ...
[2020-10-12 17:56:22,674 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:56:22" (1/1) ...
[2020-10-12 17:56:22,679 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:56:22" (1/1) ...
[2020-10-12 17:56:22,687 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-10-12 17:56:22,687 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-10-12 17:56:22,687 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-10-12 17:56:22,687 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-10-12 17:56:22,688 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:56:22" (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
[2020-10-12 17:56:22,751 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-10-12 17:56:22,751 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-10-12 17:56:22,751 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-10-12 17:56:22,751 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-10-12 17:56:22,751 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-10-12 17:56:22,751 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-10-12 17:56:22,752 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-10-12 17:56:22,752 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-10-12 17:56:22,752 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-10-12 17:56:22,752 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-10-12 17:56:22,752 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-10-12 17:56:22,752 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-10-12 17:56:22,753 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-10-12 17:56:22,753 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-10-12 17:56:22,753 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-10-12 17:56:22,753 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-10-12 17:56:22,753 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-10-12 17:56:22,753 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-10-12 17:56:22,753 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-10-12 17:56:22,754 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-10-12 17:56:22,754 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-10-12 17:56:22,754 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-10-12 17:56:22,754 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-10-12 17:56:22,754 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-10-12 17:56:22,754 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-10-12 17:56:22,755 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-10-12 17:56:22,755 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-10-12 17:56:22,755 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-10-12 17:56:22,755 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-10-12 17:56:22,755 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-10-12 17:56:22,755 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-10-12 17:56:22,755 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-10-12 17:56:22,756 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-10-12 17:56:22,756 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-10-12 17:56:22,756 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-10-12 17:56:22,756 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-10-12 17:56:22,756 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-10-12 17:56:22,756 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-10-12 17:56:22,757 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-10-12 17:56:22,757 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-10-12 17:56:22,757 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-10-12 17:56:22,757 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-10-12 17:56:22,757 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-10-12 17:56:22,757 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-10-12 17:56:22,757 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-10-12 17:56:22,758 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-10-12 17:56:22,758 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-10-12 17:56:22,758 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-10-12 17:56:22,758 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-10-12 17:56:22,758 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-10-12 17:56:22,758 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-10-12 17:56:22,758 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-10-12 17:56:22,759 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-10-12 17:56:22,759 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-10-12 17:56:22,759 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-10-12 17:56:22,759 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-10-12 17:56:22,759 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-10-12 17:56:22,759 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-10-12 17:56:22,760 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-10-12 17:56:22,760 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-10-12 17:56:22,760 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-10-12 17:56:22,760 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-10-12 17:56:22,760 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-10-12 17:56:22,760 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-10-12 17:56:22,760 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-10-12 17:56:22,761 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-10-12 17:56:22,761 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-10-12 17:56:22,761 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-10-12 17:56:22,761 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-10-12 17:56:22,761 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-10-12 17:56:22,762 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-10-12 17:56:22,762 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-10-12 17:56:22,762 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-10-12 17:56:22,762 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-10-12 17:56:22,762 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-10-12 17:56:22,762 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-10-12 17:56:22,762 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-10-12 17:56:22,763 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-10-12 17:56:22,763 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-10-12 17:56:22,763 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-10-12 17:56:22,763 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-10-12 17:56:22,763 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-10-12 17:56:22,763 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-10-12 17:56:22,763 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-10-12 17:56:23,769 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-10-12 17:56:23,769 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-10-12 17:56:23,774 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:56:23 BoogieIcfgContainer
[2020-10-12 17:56:23,774 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-10-12 17:56:23,775 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-10-12 17:56:23,775 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-10-12 17:56:23,779 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-10-12 17:56:23,779 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 05:56:21" (1/3) ...
[2020-10-12 17:56:23,780 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2753460b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:56:23, skipping insertion in model container
[2020-10-12 17:56:23,780 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:56:22" (2/3) ...
[2020-10-12 17:56:23,780 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2753460b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:56:23, skipping insertion in model container
[2020-10-12 17:56:23,781 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:56:23" (3/3) ...
[2020-10-12 17:56:23,782 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product02.cil.c
[2020-10-12 17:56:23,792 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-10-12 17:56:23,800 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-10-12 17:56:23,814 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-10-12 17:56:23,835 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-10-12 17:56:23,835 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-10-12 17:56:23,835 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-10-12 17:56:23,835 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-10-12 17:56:23,835 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-10-12 17:56:23,836 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-10-12 17:56:23,836 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-10-12 17:56:23,836 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-10-12 17:56:23,856 INFO  L276                IsEmpty]: Start isEmpty. Operand 137 states.
[2020-10-12 17:56:23,865 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2020-10-12 17:56:23,865 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-12 17:56:23,866 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]
[2020-10-12 17:56:23,867 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-12 17:56:23,872 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-12 17:56:23,873 INFO  L82        PathProgramCache]: Analyzing trace with hash 761454740, now seen corresponding path program 1 times
[2020-10-12 17:56:23,882 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-12 17:56:23,882 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [598814443]
[2020-10-12 17:56:23,883 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-12 17:56:24,155 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:56:24,317 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:56:24,456 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:56:25,137 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:56:26,474 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:56:26,475 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 84
[2020-10-12 17:56:26,476 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-10-12 17:56:26,476 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2313
[2020-10-12 17:56:26,481 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:56:26,485 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-10-12 17:56:26,486 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-12 17:56:26,486 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 67
[2020-10-12 17:56:26,487 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 9
[2020-10-12 17:56:26,952 WARN  L193               SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-10-12 17:56:26,953 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-12 17:56:26,975 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:56:26,993 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:56:27,090 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:56:27,091 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:56:27,091 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:56:27,092 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 114
[2020-10-12 17:56:27,092 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:56:27,092 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:56:27,093 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:56:27,093 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-10-12 17:56:27,093 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 17:56:27,131 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-10-12 17:56:27,132 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:56:27,134 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:56:27,136 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:56:27,136 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 17:56:27,137 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:56:27,137 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-12 17:56:27,137 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:56:27,138 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:56:27,138 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:56:27,139 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-12 17:56:27,139 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 17:56:27,141 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-10-12 17:56:27,142 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:56:27,143 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:56:27,145 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:56:27,146 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 17:56:27,146 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:56:27,146 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-12 17:56:27,147 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:56:27,147 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:56:27,147 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:56:27,148 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-12 17:56:27,148 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 17:56:27,150 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-10-12 17:56:27,151 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:56:27,153 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:56:27,156 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:56:27,156 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:56:27,156 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:56:27,157 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-10-12 17:56:27,157 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:56:27,158 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:56:27,158 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:56:27,158 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-12 17:56:27,159 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 17:56:27,161 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-10-12 17:56:27,162 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:56:27,163 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:56:27,165 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:56:27,166 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 17:56:27,166 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:56:27,166 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-12 17:56:27,167 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:56:27,167 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:56:27,168 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:56:27,168 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-12 17:56:27,168 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 17:56:27,170 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2020-10-12 17:56:27,171 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:56:27,172 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:56:27,175 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:56:27,175 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:56:27,175 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:56:27,176 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-12 17:56:27,176 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:56:27,176 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:56:27,176 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:56:27,177 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-12 17:56:27,177 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:56:27,179 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2020-10-12 17:56:27,180 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:56:27,182 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:56:27,188 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:56:27,189 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:56:27,189 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:56:27,189 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-10-12 17:56:27,190 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:56:27,190 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-10-12 17:56:27,190 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:56:27,190 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-12 17:56:27,191 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:56:27,210 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44
[2020-10-12 17:56:27,212 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:56:27,213 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:56:27,215 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:56:27,216 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:56:27,216 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:56:27,216 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-12 17:56:27,217 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:56:27,217 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 17:56:27,217 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-12 17:56:27,218 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 17:56:27,218 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 17:56:27,235 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-12 17:56:27,236 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [598814443]
[2020-10-12 17:56:27,239 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-12 17:56:27,239 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-10-12 17:56:27,240 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860416708]
[2020-10-12 17:56:27,247 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-10-12 17:56:27,248 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-12 17:56:27,267 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-10-12 17:56:27,268 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2020-10-12 17:56:27,270 INFO  L87              Difference]: Start difference. First operand 137 states. Second operand 8 states.
[2020-10-12 17:56:27,856 WARN  L193               SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-10-12 17:56:28,805 WARN  L193               SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-10-12 17:56:29,140 WARN  L193               SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-10-12 17:56:29,427 WARN  L193               SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-10-12 17:56:29,782 WARN  L193               SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-10-12 17:56:30,127 WARN  L193               SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-10-12 17:56:30,883 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-12 17:56:30,884 INFO  L93              Difference]: Finished difference Result 304 states and 424 transitions.
[2020-10-12 17:56:30,884 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2020-10-12 17:56:30,886 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 52
[2020-10-12 17:56:30,887 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-12 17:56:30,901 INFO  L225             Difference]: With dead ends: 304
[2020-10-12 17:56:30,901 INFO  L226             Difference]: Without dead ends: 175
[2020-10-12 17:56:30,906 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182
[2020-10-12 17:56:30,925 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 175 states.
[2020-10-12 17:56:30,996 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 147.
[2020-10-12 17:56:30,998 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 147 states.
[2020-10-12 17:56:31,000 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 176 transitions.
[2020-10-12 17:56:31,002 INFO  L78                 Accepts]: Start accepts. Automaton has 147 states and 176 transitions. Word has length 52
[2020-10-12 17:56:31,002 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-12 17:56:31,002 INFO  L479      AbstractCegarLoop]: Abstraction has 147 states and 176 transitions.
[2020-10-12 17:56:31,002 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-10-12 17:56:31,003 INFO  L276                IsEmpty]: Start isEmpty. Operand 147 states and 176 transitions.
[2020-10-12 17:56:31,007 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 63
[2020-10-12 17:56:31,007 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-12 17:56:31,007 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]
[2020-10-12 17:56:31,007 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-10-12 17:56:31,008 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-12 17:56:31,008 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-12 17:56:31,008 INFO  L82        PathProgramCache]: Analyzing trace with hash 1352407893, now seen corresponding path program 1 times
[2020-10-12 17:56:31,008 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-12 17:56:31,009 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [513381588]
[2020-10-12 17:56:31,009 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-12 17:56:31,040 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:56:31,062 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:56:31,625 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:56:31,625 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 94
[2020-10-12 17:56:31,625 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:56:31,626 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 584
[2020-10-12 17:56:31,626 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:56:31,626 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-10-12 17:56:31,626 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-12 17:56:31,626 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 57
[2020-10-12 17:56:31,627 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:56:31,854 WARN  L193               SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-10-12 17:56:31,855 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-12 17:56:31,871 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:56:31,882 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:56:31,930 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:56:31,931 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:56:31,931 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:56:31,931 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 58
[2020-10-12 17:56:31,931 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:56:31,931 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:56:31,932 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:56:31,932 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-10-12 17:56:31,932 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:56:31,948 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-10-12 17:56:31,949 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:56:31,950 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:56:31,952 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:56:31,952 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 17:56:31,952 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:56:31,952 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-12 17:56:31,952 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:56:31,953 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:56:31,953 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:56:31,953 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-12 17:56:31,953 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:56:31,954 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-10-12 17:56:31,955 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:56:31,956 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:56:31,957 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:56:31,957 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 17:56:31,958 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:56:31,958 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-12 17:56:31,958 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:56:31,958 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:56:31,958 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:56:31,959 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-12 17:56:31,959 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:56:31,960 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-10-12 17:56:31,961 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:56:31,962 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:56:31,964 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:56:31,964 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:56:31,964 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:56:31,965 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-12 17:56:31,965 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:56:31,965 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:56:31,965 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:56:31,965 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-12 17:56:31,965 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:56:31,967 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-10-12 17:56:31,967 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:56:31,968 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:56:31,969 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:56:31,970 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 17:56:31,970 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:56:31,970 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-12 17:56:31,970 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:56:31,971 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:56:31,971 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:56:31,971 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-12 17:56:31,971 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:56:31,981 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2020-10-12 17:56:31,983 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:56:31,984 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:56:31,986 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:56:31,986 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:56:31,987 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:56:31,987 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-12 17:56:31,987 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:56:31,987 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:56:31,987 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:56:31,987 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-12 17:56:31,988 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:56:31,989 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42
[2020-10-12 17:56:31,990 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:56:31,990 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:56:31,991 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:56:31,992 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:56:31,992 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:56:31,992 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-12 17:56:31,992 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:56:31,992 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 17:56:31,993 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-12 17:56:31,993 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 17:56:31,993 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:56:31,994 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48
[2020-10-12 17:56:31,995 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:56:31,995 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:56:31,996 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:56:31,996 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:56:31,997 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:56:31,997 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-12 17:56:31,997 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:56:31,997 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 17:56:31,997 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-12 17:56:31,998 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 17:56:31,998 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:56:31,999 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54
[2020-10-12 17:56:31,999 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:56:32,000 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:56:32,001 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:56:32,002 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:56:32,002 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:56:32,002 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-12 17:56:32,002 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:56:32,002 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 17:56:32,003 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-12 17:56:32,003 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 17:56:32,003 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:56:32,012 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-12 17:56:32,013 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [513381588]
[2020-10-12 17:56:32,013 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-12 17:56:32,013 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-10-12 17:56:32,013 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105945471]
[2020-10-12 17:56:32,015 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-10-12 17:56:32,015 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-12 17:56:32,016 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-10-12 17:56:32,016 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-10-12 17:56:32,016 INFO  L87              Difference]: Start difference. First operand 147 states and 176 transitions. Second operand 5 states.
[2020-10-12 17:56:32,411 WARN  L193               SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-10-12 17:56:33,089 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-12 17:56:33,090 INFO  L93              Difference]: Finished difference Result 307 states and 401 transitions.
[2020-10-12 17:56:33,090 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2020-10-12 17:56:33,090 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 62
[2020-10-12 17:56:33,091 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-12 17:56:33,097 INFO  L225             Difference]: With dead ends: 307
[2020-10-12 17:56:33,097 INFO  L226             Difference]: Without dead ends: 184
[2020-10-12 17:56:33,102 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-10-12 17:56:33,103 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 184 states.
[2020-10-12 17:56:33,142 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 147.
[2020-10-12 17:56:33,143 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 147 states.
[2020-10-12 17:56:33,144 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 173 transitions.
[2020-10-12 17:56:33,144 INFO  L78                 Accepts]: Start accepts. Automaton has 147 states and 173 transitions. Word has length 62
[2020-10-12 17:56:33,145 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-12 17:56:33,145 INFO  L479      AbstractCegarLoop]: Abstraction has 147 states and 173 transitions.
[2020-10-12 17:56:33,145 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-10-12 17:56:33,145 INFO  L276                IsEmpty]: Start isEmpty. Operand 147 states and 173 transitions.
[2020-10-12 17:56:33,148 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 66
[2020-10-12 17:56:33,148 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-12 17:56:33,148 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]
[2020-10-12 17:56:33,148 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-10-12 17:56:33,149 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-12 17:56:33,149 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-12 17:56:33,149 INFO  L82        PathProgramCache]: Analyzing trace with hash -1045725272, now seen corresponding path program 1 times
[2020-10-12 17:56:33,149 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-12 17:56:33,149 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1861022946]
[2020-10-12 17:56:33,150 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-12 17:56:33,189 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-10-12 17:56:33,191 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-10-12 17:56:33,192 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-10-12 17:56:33,196 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-10-12 17:56:33,237 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 05:56:33 BoogieIcfgContainer
[2020-10-12 17:56:33,237 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-10-12 17:56:33,239 INFO  L168              Benchmark]: Toolchain (without parser) took 11374.14 ms. Allocated memory was 141.6 MB in the beginning and 415.8 MB in the end (delta: 274.2 MB). Free memory was 103.9 MB in the beginning and 172.3 MB in the end (delta: -68.4 MB). Peak memory consumption was 205.8 MB. Max. memory is 7.1 GB.
[2020-10-12 17:56:33,240 INFO  L168              Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-10-12 17:56:33,241 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 733.49 ms. Allocated memory was 141.6 MB in the beginning and 205.5 MB in the end (delta: 64.0 MB). Free memory was 103.7 MB in the beginning and 171.2 MB in the end (delta: -67.6 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB.
[2020-10-12 17:56:33,241 INFO  L168              Benchmark]: Boogie Preprocessor took 87.13 ms. Allocated memory is still 205.5 MB. Free memory was 171.2 MB in the beginning and 166.7 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB.
[2020-10-12 17:56:33,242 INFO  L168              Benchmark]: RCFGBuilder took 1086.93 ms. Allocated memory was 205.5 MB in the beginning and 234.9 MB in the end (delta: 29.4 MB). Free memory was 166.7 MB in the beginning and 193.8 MB in the end (delta: -27.1 MB). Peak memory consumption was 77.3 MB. Max. memory is 7.1 GB.
[2020-10-12 17:56:33,243 INFO  L168              Benchmark]: TraceAbstraction took 9461.56 ms. Allocated memory was 234.9 MB in the beginning and 415.8 MB in the end (delta: 180.9 MB). Free memory was 192.4 MB in the beginning and 172.3 MB in the end (delta: 20.2 MB). Peak memory consumption was 201.1 MB. Max. memory is 7.1 GB.
[2020-10-12 17:56:33,247 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.23 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 733.49 ms. Allocated memory was 141.6 MB in the beginning and 205.5 MB in the end (delta: 64.0 MB). Free memory was 103.7 MB in the beginning and 171.2 MB in the end (delta: -67.6 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 87.13 ms. Allocated memory is still 205.5 MB. Free memory was 171.2 MB in the beginning and 166.7 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1086.93 ms. Allocated memory was 205.5 MB in the beginning and 234.9 MB in the end (delta: 29.4 MB). Free memory was 166.7 MB in the beginning and 193.8 MB in the end (delta: -27.1 MB). Peak memory consumption was 77.3 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 9461.56 ms. Allocated memory was 234.9 MB in the beginning and 415.8 MB in the end (delta: 180.9 MB). Free memory was 192.4 MB in the beginning and 172.3 MB in the end (delta: 20.2 MB). Peak memory consumption was 201.1 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 82]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L256]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L462]              int pumpRunning  =    0;
[L463]              int systemActive  =    1;
[L683]              int cleanupTimeShifts  =    4;
[L779]              int waterLevel  =    1;
[L780]              int methaneLevelCritical  =    0;
[L756]              int retValue_acc ;
[L757]              int tmp ;
[L761]  FCALL       select_helpers()
[L762]  FCALL       select_features()
[L763]  CALL, EXPR  valid_product()
[L69]               int retValue_acc ;
[L72]               retValue_acc = 1
[L73]               return (retValue_acc);
[L763]  RET, EXPR   valid_product()
[L763]              tmp = valid_product()
[L765]  COND TRUE   \read(tmp)
[L767]  FCALL       setup()
[L768]  CALL        runTest()
[L750]  CALL        test()
[L617]              int splverifierCounter ;
[L618]              int tmp ;
[L619]              int tmp___0 ;
[L620]              int tmp___1 ;
[L621]              int tmp___2 ;
[L624]              splverifierCounter = 0
[L626]  COND TRUE   1
[L628]  COND TRUE   splverifierCounter < 4
[L634]              tmp = __VERIFIER_nondet_int()
[L636]  COND TRUE   \read(tmp)
[L638]  CALL        waterRise()
[L797]  COND TRUE   waterLevel < 2
[L798]              waterLevel = waterLevel + 1
[L638]  RET         waterRise()
[L644]              tmp___0 = __VERIFIER_nondet_int()
[L646]  COND FALSE  !(\read(tmp___0))
[L654]              tmp___2 = __VERIFIER_nondet_int()
[L656]  COND FALSE  !(\read(tmp___2))
[L662]              tmp___1 = __VERIFIER_nondet_int()
[L664]  COND FALSE  !(\read(tmp___1))
[L671]  CALL        timeShift()
[L470]  COND FALSE  !(\read(pumpRunning))
[L477]  COND TRUE   \read(systemActive)
[L479]  FCALL       processEnvironment()
[L485]  CALL        __utac_acc__Specification3_spec__1()
[L580]              int tmp ;
[L581]              int tmp___0 ;
[L582]              int tmp___1 ;
[L586]  CALL, EXPR  isMethaneLevelCritical()
[L818]              int retValue_acc ;
[L821]              retValue_acc = methaneLevelCritical
[L822]              return (retValue_acc);
[L586]  RET, EXPR   isMethaneLevelCritical()
[L586]              tmp = isMethaneLevelCritical()
[L588]  COND FALSE  !(\read(tmp))
[L592]  CALL, EXPR  getWaterLevel()
[L850]              int retValue_acc ;
[L853]              retValue_acc = waterLevel
[L854]              return (retValue_acc);
[L592]  RET, EXPR   getWaterLevel()
[L592]              tmp___0 = getWaterLevel()
[L594]  COND TRUE   tmp___0 == 2
[L596]  CALL, EXPR  isPumpRunning()
[L525]              int retValue_acc ;
[L528]              retValue_acc = pumpRunning
[L529]              return (retValue_acc);
[L596]  RET, EXPR   isPumpRunning()
[L596]              tmp___1 = isPumpRunning()
[L598]  COND FALSE  !(\read(tmp___1))
[L602]  CALL        __automaton_fail()
[L82]               __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 35 procedures, 201 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 9.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 4.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 179 SDtfs, 419 SDslu, 177 SDs, 0 SdLazy, 680 SolverSat, 253 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=147occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 65 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 179 NumberOfCodeBlocks, 179 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 34651 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...