/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=LOWLEXORDER --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_product01.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 21:20:28,519 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 21:20:28,523 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 21:20:28,548 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 21:20:28,549 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 21:20:28,550 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 21:20:28,551 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 21:20:28,553 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 21:20:28,555 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 21:20:28,556 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 21:20:28,557 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 21:20:28,558 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 21:20:28,559 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 21:20:28,560 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 21:20:28,561 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 21:20:28,562 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 21:20:28,563 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 21:20:28,564 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 21:20:28,566 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 21:20:28,568 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 21:20:28,570 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 21:20:28,571 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 21:20:28,572 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 21:20:28,573 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 21:20:28,576 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 21:20:28,576 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 21:20:28,576 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 21:20:28,577 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 21:20:28,578 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 21:20:28,579 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 21:20:28,579 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 21:20:28,580 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 21:20:28,581 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 21:20:28,582 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 21:20:28,583 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 21:20:28,583 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 21:20:28,584 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 21:20:28,584 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 21:20:28,584 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 21:20:28,585 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 21:20:28,586 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 21:20:28,587 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 21:20:28,612 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 21:20:28,613 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 21:20:28,614 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 21:20:28,614 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 21:20:28,614 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 21:20:28,615 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 21:20:28,615 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 21:20:28,615 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 21:20:28,615 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 21:20:28,615 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 21:20:28,616 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 21:20:28,616 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 21:20:28,616 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 21:20:28,616 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 21:20:28,617 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 21:20:28,617 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 21:20:28,617 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 21:20:28,617 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 21:20:28,617 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 21:20:28,618 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 21:20:28,618 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 21:20:28,618 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 21:20:28,618 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 21:20:28,619 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 21:20:28,619 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 21:20:28,619 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 21:20:28,619 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 21:20:28,619 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 21:20:28,620 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 21:20:28,620 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true;
[2020-09-24 21:20:29,097 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 21:20:29,116 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 21:20:29,121 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 21:20:29,123 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 21:20:29,123 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 21:20:29,125 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c
[2020-09-24 21:20:29,221 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a00ce8766/d57f512df53c4a3d9537b0ae0aecbec2/FLAGea4186416
[2020-09-24 21:20:29,808 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 21:20:29,809 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c
[2020-09-24 21:20:29,822 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a00ce8766/d57f512df53c4a3d9537b0ae0aecbec2/FLAGea4186416
[2020-09-24 21:20:30,098 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a00ce8766/d57f512df53c4a3d9537b0ae0aecbec2
[2020-09-24 21:20:30,112 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 21:20:30,118 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 21:20:30,119 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 21:20:30,120 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 21:20:30,124 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 21:20:30,125 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:20:30" (1/1) ...
[2020-09-24 21:20:30,129 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:30, skipping insertion in model container
[2020-09-24 21:20:30,129 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:20:30" (1/1) ...
[2020-09-24 21:20:30,138 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 21:20:30,186 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 21:20:30,582 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 21:20:30,596 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 21:20:30,776 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 21:20:30,822 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 21:20:30,822 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:30 WrapperNode
[2020-09-24 21:20:30,822 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 21:20:30,823 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 21:20:30,823 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 21:20:30,823 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 21:20:30,839 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:30" (1/1) ...
[2020-09-24 21:20:30,840 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:30" (1/1) ...
[2020-09-24 21:20:30,861 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:30" (1/1) ...
[2020-09-24 21:20:30,862 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:30" (1/1) ...
[2020-09-24 21:20:30,895 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:30" (1/1) ...
[2020-09-24 21:20:30,906 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:30" (1/1) ...
[2020-09-24 21:20:30,911 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:30" (1/1) ...
[2020-09-24 21:20:30,919 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 21:20:30,919 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 21:20:30,919 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 21:20:30,920 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 21:20:30,921 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:30" (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 21:20:31,004 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 21:20:31,004 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 21:20:31,004 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 21:20:31,005 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 21:20:31,005 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 21:20:31,005 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 21:20:31,005 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 21:20:31,005 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 21:20:31,006 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 21:20:31,007 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 21:20:31,007 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 21:20:31,007 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 21:20:31,007 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 21:20:31,007 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 21:20:31,007 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 21:20:31,008 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-24 21:20:31,009 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 21:20:31,009 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 21:20:31,009 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 21:20:31,009 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 21:20:31,011 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 21:20:31,011 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 21:20:31,012 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 21:20:31,012 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 21:20:31,013 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 21:20:31,013 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 21:20:31,014 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 21:20:31,015 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 21:20:31,015 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 21:20:31,015 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 21:20:31,016 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 21:20:31,016 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 21:20:31,016 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 21:20:31,016 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 21:20:31,016 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 21:20:31,017 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 21:20:31,017 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 21:20:31,017 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 21:20:31,017 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 21:20:31,017 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 21:20:31,017 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 21:20:31,018 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 21:20:31,018 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 21:20:31,018 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 21:20:31,019 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 21:20:31,019 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-24 21:20:31,019 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 21:20:31,019 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 21:20:31,019 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 21:20:31,019 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 21:20:31,020 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 21:20:31,020 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 21:20:31,020 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 21:20:31,021 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 21:20:31,021 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 21:20:31,021 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 21:20:31,021 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 21:20:31,021 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 21:20:31,021 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 21:20:31,022 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 21:20:31,022 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 21:20:31,022 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 21:20:31,022 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 21:20:31,023 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 21:20:31,023 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 21:20:31,023 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 21:20:31,023 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 21:20:31,023 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 21:20:31,023 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 21:20:31,024 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 21:20:31,024 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 21:20:31,024 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 21:20:31,024 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 21:20:31,024 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 21:20:31,024 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 21:20:31,024 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 21:20:31,025 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 21:20:31,025 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 21:20:31,025 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 21:20:31,025 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 21:20:31,025 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 21:20:31,025 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 21:20:32,189 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 21:20:32,189 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 21:20:32,198 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:20:32 BoogieIcfgContainer
[2020-09-24 21:20:32,198 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 21:20:32,199 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 21:20:32,199 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 21:20:32,204 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 21:20:32,205 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:20:30" (1/3) ...
[2020-09-24 21:20:32,206 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50e915be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:20:32, skipping insertion in model container
[2020-09-24 21:20:32,206 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:20:30" (2/3) ...
[2020-09-24 21:20:32,206 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50e915be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:20:32, skipping insertion in model container
[2020-09-24 21:20:32,206 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:20:32" (3/3) ...
[2020-09-24 21:20:32,209 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product01.cil.c
[2020-09-24 21:20:32,222 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 21:20:32,234 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 21:20:32,258 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 21:20:32,300 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 21:20:32,300 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 21:20:32,300 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 21:20:32,300 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 21:20:32,301 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 21:20:32,301 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 21:20:32,301 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 21:20:32,301 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 21:20:32,329 INFO  L276                IsEmpty]: Start isEmpty. Operand 258 states.
[2020-09-24 21:20:32,346 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-24 21:20:32,346 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 21:20:32,348 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 21:20:32,348 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:20:32,356 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:20:32,356 INFO  L82        PathProgramCache]: Analyzing trace with hash -1134805363, now seen corresponding path program 1 times
[2020-09-24 21:20:32,366 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:20:32,367 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [24891574]
[2020-09-24 21:20:32,367 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:20:32,737 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:20:32,880 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:33,065 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:33,508 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:36,813 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:20:36,813 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-24 21:20:36,814 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 21:20:36,814 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4064
[2020-09-24 21:20:36,818 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:20:36,819 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:20:36,819 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-24 21:20:36,820 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 62
[2020-09-24 21:20:36,820 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-09-24 21:20:37,244 WARN  L193               SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 21:20:37,246 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:20:37,289 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:20:37,335 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:37,635 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:20:37,635 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 21:20:37,635 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:20:37,635 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 344
[2020-09-24 21:20:37,636 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:20:37,636 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:20:37,636 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:20:37,636 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-24 21:20:37,637 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:20:37,703 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 21:20:37,704 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:20:37,706 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:37,709 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:20:37,710 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:20:37,710 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:20:37,710 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 21:20:37,710 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:20:37,710 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:20:37,711 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:20:37,711 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:20:37,711 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:20:37,713 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 21:20:37,714 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:20:37,715 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:37,719 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:20:37,719 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:20:37,720 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:20:37,720 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 21:20:37,720 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:20:37,720 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:20:37,721 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:20:37,721 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:20:37,721 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:20:37,723 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 21:20:37,724 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:20:37,726 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:37,735 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:20:37,735 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:20:37,735 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:20:37,735 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 21:20:37,736 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:20:37,736 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:20:37,736 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:20:37,736 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:20:37,737 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:20:37,739 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 21:20:37,740 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:20:37,742 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:37,745 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:20:37,745 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:20:37,745 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:20:37,746 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 21:20:37,746 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:20:37,746 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:20:37,746 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:20:37,747 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:20:37,747 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:20:37,748 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 21:20:37,749 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:20:37,751 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:37,753 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:20:37,753 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:20:37,753 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:20:37,754 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 21:20:37,754 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:20:37,754 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:20:37,754 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 21:20:37,755 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:20:37,755 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:20:37,757 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 21:20:37,758 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:20:37,759 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:37,761 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:20:37,762 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:20:37,762 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:20:37,762 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 21:20:37,762 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:20:37,762 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:20:37,763 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 21:20:37,763 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:20:37,763 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:20:37,765 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-24 21:20:37,766 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:20:37,768 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:37,770 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:20:37,770 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:20:37,770 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:20:37,771 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 21:20:37,771 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:20:37,771 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:20:37,771 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 21:20:37,772 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:20:37,772 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:20:37,805 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 21:20:37,806 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [24891574]
[2020-09-24 21:20:37,808 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 21:20:37,809 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-24 21:20:37,810 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108436811]
[2020-09-24 21:20:37,817 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-24 21:20:37,817 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 21:20:37,835 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-24 21:20:37,836 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-24 21:20:37,839 INFO  L87              Difference]: Start difference. First operand 258 states. Second operand 4 states.
[2020-09-24 21:20:38,444 WARN  L193               SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 21:20:39,342 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 21:20:39,342 INFO  L93              Difference]: Finished difference Result 365 states and 438 transitions.
[2020-09-24 21:20:39,348 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-09-24 21:20:39,350 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 153
[2020-09-24 21:20:39,351 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 21:20:39,370 INFO  L225             Difference]: With dead ends: 365
[2020-09-24 21:20:39,370 INFO  L226             Difference]: Without dead ends: 238
[2020-09-24 21:20:39,376 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-24 21:20:39,400 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 238 states.
[2020-09-24 21:20:39,469 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 201.
[2020-09-24 21:20:39,470 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 201 states.
[2020-09-24 21:20:39,473 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 214 transitions.
[2020-09-24 21:20:39,475 INFO  L78                 Accepts]: Start accepts. Automaton has 201 states and 214 transitions. Word has length 153
[2020-09-24 21:20:39,476 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 21:20:39,476 INFO  L479      AbstractCegarLoop]: Abstraction has 201 states and 214 transitions.
[2020-09-24 21:20:39,476 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-24 21:20:39,476 INFO  L276                IsEmpty]: Start isEmpty. Operand 201 states and 214 transitions.
[2020-09-24 21:20:39,481 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 158
[2020-09-24 21:20:39,481 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 21:20:39,481 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]
[2020-09-24 21:20:39,482 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 21:20:39,482 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:20:39,482 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:20:39,482 INFO  L82        PathProgramCache]: Analyzing trace with hash -812596280, now seen corresponding path program 1 times
[2020-09-24 21:20:39,483 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:20:39,483 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1558699146]
[2020-09-24 21:20:39,483 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:20:39,537 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:20:39,595 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:39,842 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:42,728 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:20:42,729 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 192
[2020-09-24 21:20:42,729 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 21:20:42,729 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3188
[2020-09-24 21:20:42,730 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:20:42,730 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 21:20:42,730 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 80
[2020-09-24 21:20:42,730 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 96
[2020-09-24 21:20:42,730 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:20:43,062 WARN  L193               SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 21:20:43,063 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:20:43,097 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:20:43,134 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:43,368 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:20:43,369 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 21:20:43,369 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:20:43,369 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 269
[2020-09-24 21:20:43,370 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:20:43,370 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:20:43,370 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:20:43,370 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 76
[2020-09-24 21:20:43,371 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:20:43,457 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 21:20:43,465 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:20:43,468 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:43,473 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:20:43,473 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:20:43,474 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:20:43,474 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 21:20:43,475 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:20:43,475 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:20:43,475 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:20:43,475 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:20:43,476 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:20:43,477 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 21:20:43,478 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:20:43,479 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:43,482 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:20:43,482 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:20:43,482 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:20:43,482 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 21:20:43,483 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:20:43,483 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:20:43,483 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:20:43,483 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:20:43,483 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:20:43,487 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 21:20:43,488 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:20:43,490 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:43,497 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:20:43,497 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:20:43,497 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:20:43,497 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 21:20:43,498 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:20:43,498 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:20:43,498 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:20:43,498 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:20:43,498 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:20:43,500 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 21:20:43,501 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:20:43,503 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:43,509 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:20:43,509 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:20:43,509 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:20:43,509 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 21:20:43,510 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:20:43,510 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:20:43,510 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:20:43,510 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:20:43,510 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:20:43,512 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2020-09-24 21:20:43,512 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:20:43,514 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:43,525 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:20:43,526 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:20:43,526 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:20:43,526 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-24 21:20:43,526 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:20:43,527 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:20:43,527 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:20:43,527 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:20:43,527 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:20:43,529 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125
[2020-09-24 21:20:43,530 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:20:43,532 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:43,535 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:20:43,535 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:20:43,536 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:20:43,536 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 21:20:43,536 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:20:43,536 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:20:43,537 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:20:43,537 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:20:43,537 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:20:43,539 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135
[2020-09-24 21:20:43,540 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:20:43,542 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:43,549 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:20:43,550 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:20:43,550 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:20:43,550 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 21:20:43,550 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:20:43,551 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 21:20:43,551 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:20:43,551 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:20:43,551 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:20:43,621 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145
[2020-09-24 21:20:43,622 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:20:43,623 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:20:43,625 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:20:43,625 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:20:43,625 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:20:43,626 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 21:20:43,626 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:20:43,626 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:20:43,626 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 21:20:43,626 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:20:43,629 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-24 21:20:43,663 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 21:20:43,664 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1558699146]
[2020-09-24 21:20:43,665 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 21:20:43,665 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-24 21:20:43,665 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729317145]
[2020-09-24 21:20:43,669 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-24 21:20:43,669 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 21:20:43,671 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-24 21:20:43,672 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-24 21:20:43,672 INFO  L87              Difference]: Start difference. First operand 201 states and 214 transitions. Second operand 8 states.
[2020-09-24 21:20:44,221 WARN  L193               SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 21:20:45,590 WARN  L193               SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 21:20:45,969 WARN  L193               SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 192
[2020-09-24 21:20:46,322 WARN  L193               SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 21:20:46,683 WARN  L193               SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 21:20:47,021 WARN  L193               SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 21:20:47,352 WARN  L193               SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 21:20:47,668 WARN  L193               SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 21:20:48,280 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 21:20:48,280 INFO  L93              Difference]: Finished difference Result 405 states and 472 transitions.
[2020-09-24 21:20:48,281 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-24 21:20:48,281 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 157
[2020-09-24 21:20:48,283 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 21:20:48,290 INFO  L225             Difference]: With dead ends: 405
[2020-09-24 21:20:48,290 INFO  L226             Difference]: Without dead ends: 314
[2020-09-24 21:20:48,292 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-24 21:20:48,293 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 314 states.
[2020-09-24 21:20:48,348 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 282.
[2020-09-24 21:20:48,349 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 282 states.
[2020-09-24 21:20:48,353 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 314 transitions.
[2020-09-24 21:20:48,354 INFO  L78                 Accepts]: Start accepts. Automaton has 282 states and 314 transitions. Word has length 157
[2020-09-24 21:20:48,355 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 21:20:48,355 INFO  L479      AbstractCegarLoop]: Abstraction has 282 states and 314 transitions.
[2020-09-24 21:20:48,355 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-24 21:20:48,355 INFO  L276                IsEmpty]: Start isEmpty. Operand 282 states and 314 transitions.
[2020-09-24 21:20:48,364 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 172
[2020-09-24 21:20:48,364 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 21:20:48,364 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]
[2020-09-24 21:20:48,365 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 21:20:48,365 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:20:48,365 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:20:48,365 INFO  L82        PathProgramCache]: Analyzing trace with hash 1613053112, now seen corresponding path program 1 times
[2020-09-24 21:20:48,365 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:20:48,366 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1492437037]
[2020-09-24 21:20:48,366 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:20:48,428 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-24 21:20:48,436 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-24 21:20:48,437 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 21:20:48,442 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 21:20:48,469 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 09:20:48 BoogieIcfgContainer
[2020-09-24 21:20:48,469 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 21:20:48,472 INFO  L168              Benchmark]: Toolchain (without parser) took 18357.79 ms. Allocated memory was 145.8 MB in the beginning and 439.4 MB in the end (delta: 293.6 MB). Free memory was 101.1 MB in the beginning and 88.1 MB in the end (delta: 13.0 MB). Peak memory consumption was 306.6 MB. Max. memory is 7.1 GB.
[2020-09-24 21:20:48,472 INFO  L168              Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 145.8 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-24 21:20:48,473 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 703.50 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 100.5 MB in the beginning and 174.0 MB in the end (delta: -73.5 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB.
[2020-09-24 21:20:48,474 INFO  L168              Benchmark]: Boogie Preprocessor took 95.87 ms. Allocated memory is still 202.4 MB. Free memory was 174.0 MB in the beginning and 169.5 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB.
[2020-09-24 21:20:48,475 INFO  L168              Benchmark]: RCFGBuilder took 1278.86 ms. Allocated memory was 202.4 MB in the beginning and 234.9 MB in the end (delta: 32.5 MB). Free memory was 169.5 MB in the beginning and 185.3 MB in the end (delta: -15.8 MB). Peak memory consumption was 87.6 MB. Max. memory is 7.1 GB.
[2020-09-24 21:20:48,492 INFO  L168              Benchmark]: TraceAbstraction took 16269.94 ms. Allocated memory was 234.9 MB in the beginning and 439.4 MB in the end (delta: 204.5 MB). Free memory was 185.3 MB in the beginning and 88.1 MB in the end (delta: 97.1 MB). Peak memory consumption was 301.6 MB. Max. memory is 7.1 GB.
[2020-09-24 21:20:48,496 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.24 ms. Allocated memory is still 145.8 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 703.50 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 100.5 MB in the beginning and 174.0 MB in the end (delta: -73.5 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 95.87 ms. Allocated memory is still 202.4 MB. Free memory was 174.0 MB in the beginning and 169.5 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1278.86 ms. Allocated memory was 202.4 MB in the beginning and 234.9 MB in the end (delta: 32.5 MB). Free memory was 169.5 MB in the beginning and 185.3 MB in the end (delta: -15.8 MB). Peak memory consumption was 87.6 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 16269.94 ms. Allocated memory was 234.9 MB in the beginning and 439.4 MB in the end (delta: 204.5 MB). Free memory was 185.3 MB in the beginning and 88.1 MB in the end (delta: 97.1 MB). Peak memory consumption was 301.6 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 302]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L48]               int pumpRunning  =    0;
[L49]               int systemActive  =    1;
[L307]              int cleanupTimeShifts  =    4;
[L403]              int waterLevel  =    1;
[L404]              int methaneLevelCritical  =    0;
[L652]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L380]              int retValue_acc ;
[L381]              int tmp ;
[L385]  FCALL       select_helpers()
[L386]  FCALL       select_features()
[L387]  CALL, EXPR  valid_product()
[L253]              int retValue_acc ;
[L256]              retValue_acc = 1
[L257]              return (retValue_acc);
[L387]  RET, EXPR   valid_product()
[L387]              tmp = valid_product()
[L389]  COND TRUE   \read(tmp)
[L391]  FCALL       setup()
[L392]  CALL        runTest()
[L374]  CALL        test()
[L160]              int splverifierCounter ;
[L161]              int tmp ;
[L162]              int tmp___0 ;
[L163]              int tmp___1 ;
[L164]              int tmp___2 ;
[L167]              splverifierCounter = 0
[L169]  COND TRUE   1
[L171]  COND TRUE   splverifierCounter < 4
[L177]              tmp = __VERIFIER_nondet_int()
[L179]  COND TRUE   \read(tmp)
[L181]  CALL        waterRise()
[L421]  COND TRUE   waterLevel < 2
[L422]              waterLevel = waterLevel + 1
[L181]  RET         waterRise()
[L187]              tmp___0 = __VERIFIER_nondet_int()
[L189]  COND FALSE  !(\read(tmp___0))
[L197]              tmp___2 = __VERIFIER_nondet_int()
[L199]  COND TRUE   \read(tmp___2)
[L212]  CALL        timeShift()
[L56]   COND FALSE  !(\read(pumpRunning))
[L63]   COND TRUE   \read(systemActive)
[L65]   FCALL       processEnvironment()
[L71]   CALL        __utac_acc__Specification3_spec__1()
[L265]              int tmp ;
[L266]              int tmp___0 ;
[L267]              int tmp___1 ;
[L271]  CALL, EXPR  isMethaneLevelCritical()
[L442]              int retValue_acc ;
[L445]              retValue_acc = methaneLevelCritical
[L446]              return (retValue_acc);
[L271]  RET, EXPR   isMethaneLevelCritical()
[L271]              tmp = isMethaneLevelCritical()
[L273]  COND FALSE  !(\read(tmp))
[L277]  CALL, EXPR  getWaterLevel()
[L474]              int retValue_acc ;
[L477]              retValue_acc = waterLevel
[L478]              return (retValue_acc);
[L277]  RET, EXPR   getWaterLevel()
[L277]              tmp___0 = getWaterLevel()
[L279]  COND TRUE   tmp___0 == 2
[L281]  CALL, EXPR  isPumpRunning()
[L111]              int retValue_acc ;
[L114]              retValue_acc = pumpRunning
[L115]              return (retValue_acc);
[L281]  RET, EXPR   isPumpRunning()
[L281]              tmp___1 = isPumpRunning()
[L283]  COND FALSE  !(\read(tmp___1))
[L287]  CALL        __automaton_fail()
[L302]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 34 procedures, 578 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 16.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 6.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 390 SDtfs, 474 SDslu, 611 SDs, 0 SdLazy, 976 SolverSat, 141 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=282occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 69 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 9.1s InterpolantComputationTime, 481 NumberOfCodeBlocks, 481 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 308 ConstructedInterpolants, 0 QuantifiedInterpolants, 130692 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...