/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --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
[2020-09-25 14:17:51,484 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 14:17:51,488 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 14:17:51,532 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 14:17:51,533 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 14:17:51,540 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 14:17:51,541 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 14:17:51,547 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 14:17:51,549 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 14:17:51,552 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 14:17:51,553 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 14:17:51,554 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 14:17:51,554 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 14:17:51,557 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 14:17:51,559 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 14:17:51,561 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 14:17:51,565 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 14:17:51,567 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 14:17:51,569 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 14:17:51,580 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 14:17:51,582 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 14:17:51,584 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 14:17:51,585 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 14:17:51,586 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 14:17:51,608 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 14:17:51,608 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 14:17:51,608 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 14:17:51,609 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 14:17:51,613 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 14:17:51,614 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 14:17:51,614 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 14:17:51,615 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 14:17:51,616 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 14:17:51,616 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 14:17:51,617 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 14:17:51,618 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 14:17:51,618 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 14:17:51,619 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 14:17:51,619 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2020-09-25 14:17:51,624 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 14:17:51,625 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-25 14:17:51,669 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 14:17:51,669 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 14:17:51,671 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 14:17:51,671 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 14:17:51,671 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 14:17:51,672 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 14:17:51,672 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 14:17:51,672 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 14:17:51,672 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 14:17:51,672 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 14:17:51,673 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 14:17:51,673 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 14:17:51,673 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 14:17:51,673 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 14:17:51,673 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 14:17:51,674 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 14:17:51,674 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 14:17:51,674 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 14:17:51,674 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 14:17:51,675 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 14:17:51,675 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 14:17:51,675 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 14:17:51,675 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 14:17:51,675 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 14:17:51,676 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 14:17:51,676 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 14:17:51,676 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 14:17:51,676 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 14:17:51,677 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 14:17:51,677 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true;
[2020-09-25 14:17:52,171 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 14:17:52,196 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 14:17:52,201 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 14:17:52,205 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 14:17:52,206 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 14:17:52,207 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c
[2020-09-25 14:17:52,300 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/94a9056b0/d978aff50cb14ec28a621f0d6462d1a7/FLAGbd058063e
[2020-09-25 14:17:52,922 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 14:17:52,924 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c
[2020-09-25 14:17:52,944 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/94a9056b0/d978aff50cb14ec28a621f0d6462d1a7/FLAGbd058063e
[2020-09-25 14:17:53,198 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/94a9056b0/d978aff50cb14ec28a621f0d6462d1a7
[2020-09-25 14:17:53,212 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 14:17:53,217 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 14:17:53,218 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 14:17:53,218 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 14:17:53,225 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 14:17:53,226 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:17:53" (1/1) ...
[2020-09-25 14:17:53,231 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27423965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:53, skipping insertion in model container
[2020-09-25 14:17:53,231 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:17:53" (1/1) ...
[2020-09-25 14:17:53,243 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 14:17:53,296 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 14:17:53,807 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 14:17:53,822 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 14:17:53,902 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 14:17:53,936 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 14:17:53,937 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:53 WrapperNode
[2020-09-25 14:17:53,937 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 14:17:53,938 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 14:17:53,938 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 14:17:53,939 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 14:17:53,956 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:53" (1/1) ...
[2020-09-25 14:17:53,956 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:53" (1/1) ...
[2020-09-25 14:17:53,979 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:53" (1/1) ...
[2020-09-25 14:17:53,980 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:53" (1/1) ...
[2020-09-25 14:17:54,011 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:53" (1/1) ...
[2020-09-25 14:17:54,023 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:53" (1/1) ...
[2020-09-25 14:17:54,033 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:53" (1/1) ...
[2020-09-25 14:17:54,044 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 14:17:54,044 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 14:17:54,045 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 14:17:54,046 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 14:17:54,047 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:53" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 14:17:54,128 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 14:17:54,129 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 14:17:54,129 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 14:17:54,129 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 14:17:54,129 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 14:17:54,129 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 14:17:54,130 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 14:17:54,130 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 14:17:54,130 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 14:17:54,130 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 14:17:54,130 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 14:17:54,131 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 14:17:54,131 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 14:17:54,131 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 14:17:54,131 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 14:17:54,131 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 14:17:54,131 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 14:17:54,132 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 14:17:54,132 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 14:17:54,132 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 14:17:54,132 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 14:17:54,133 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 14:17:54,133 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 14:17:54,133 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 14:17:54,133 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 14:17:54,133 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 14:17:54,133 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 14:17:54,134 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 14:17:54,134 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 14:17:54,134 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 14:17:54,134 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 14:17:54,134 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 14:17:54,134 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 14:17:54,134 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 14:17:54,135 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 14:17:54,135 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 14:17:54,135 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 14:17:54,135 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 14:17:54,135 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 14:17:54,135 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 14:17:54,136 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 14:17:54,136 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 14:17:54,136 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 14:17:54,136 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 14:17:54,136 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 14:17:54,137 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 14:17:54,137 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 14:17:54,137 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 14:17:54,137 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 14:17:54,137 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 14:17:54,137 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 14:17:54,138 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 14:17:54,138 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 14:17:54,138 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 14:17:54,138 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 14:17:54,138 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 14:17:54,138 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 14:17:54,139 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 14:17:54,139 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 14:17:54,139 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 14:17:54,139 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 14:17:54,139 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 14:17:54,139 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 14:17:54,139 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 14:17:54,140 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 14:17:54,140 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 14:17:54,140 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 14:17:54,140 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 14:17:54,140 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 14:17:54,140 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 14:17:54,141 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 14:17:54,141 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 14:17:54,141 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 14:17:54,141 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 14:17:54,141 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 14:17:54,142 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 14:17:54,142 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 14:17:54,142 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 14:17:54,142 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 14:17:54,142 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 14:17:54,142 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 14:17:54,143 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 14:17:55,290 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 14:17:55,290 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 14:17:55,300 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:17:55 BoogieIcfgContainer
[2020-09-25 14:17:55,300 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 14:17:55,301 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 14:17:55,302 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 14:17:55,305 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 14:17:55,306 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:17:53" (1/3) ...
[2020-09-25 14:17:55,307 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@778d5cae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:17:55, skipping insertion in model container
[2020-09-25 14:17:55,307 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:53" (2/3) ...
[2020-09-25 14:17:55,307 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@778d5cae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:17:55, skipping insertion in model container
[2020-09-25 14:17:55,307 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:17:55" (3/3) ...
[2020-09-25 14:17:55,310 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product01.cil.c
[2020-09-25 14:17:55,321 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 14:17:55,333 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 14:17:55,354 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 14:17:55,385 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 14:17:55,385 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 14:17:55,385 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 14:17:55,385 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 14:17:55,385 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 14:17:55,386 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 14:17:55,386 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 14:17:55,386 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 14:17:55,413 INFO  L276                IsEmpty]: Start isEmpty. Operand 258 states.
[2020-09-25 14:17:55,429 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 14:17:55,430 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 14:17:55,431 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 14:17:55,432 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 14:17:55,439 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 14:17:55,439 INFO  L82        PathProgramCache]: Analyzing trace with hash -1134805363, now seen corresponding path program 1 times
[2020-09-25 14:17:55,448 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 14:17:55,449 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2072900164]
[2020-09-25 14:17:55,449 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 14:17:55,760 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:17:55,925 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:17:56,236 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:17:56,788 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:00,255 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:00,256 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 14:18:00,256 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 14:18:00,256 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4484
[2020-09-25 14:18:00,260 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:00,260 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:00,262 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:00,265 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-25 14:18:00,265 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 62
[2020-09-25 14:18:00,265 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 8
[2020-09-25 14:18:00,871 WARN  L193               SmtUtils]: Spent 419.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 14:18:00,878 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 14:18:00,948 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:01,000 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:01,286 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:01,287 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 14:18:01,287 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:01,287 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 337
[2020-09-25 14:18:01,287 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:01,288 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:01,288 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:01,288 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:01,288 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-25 14:18:01,297 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 9
[2020-09-25 14:18:01,380 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 14:18:01,382 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:01,385 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:01,390 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:01,390 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:01,391 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:01,391 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 14:18:01,391 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:01,391 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:01,392 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:01,392 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:01,392 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:01,392 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:01,397 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 14:18:01,399 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:01,400 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:01,405 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:01,406 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:01,406 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:01,407 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 14:18:01,407 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:01,407 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:01,407 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:01,408 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:01,408 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:01,408 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:01,413 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 14:18:01,415 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:01,418 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:01,427 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:01,428 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:01,428 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:01,428 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-25 14:18:01,428 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:01,429 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:01,429 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:01,429 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:01,429 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:18:01,430 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:01,435 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 14:18:01,436 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:01,438 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:01,445 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:01,445 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:01,446 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:01,446 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 14:18:01,446 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:01,446 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:01,446 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:01,447 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:01,447 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:01,447 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:01,449 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 14:18:01,450 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:01,453 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:01,455 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:01,455 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:01,456 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:01,456 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:18:01,456 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:01,456 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:01,457 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:18:01,457 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:18:01,457 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:18:01,457 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:01,463 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 14:18:01,465 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:01,466 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:01,468 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:01,469 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:01,469 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:01,469 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:18:01,470 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:01,470 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:01,471 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:18:01,471 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:18:01,472 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:18:01,472 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 14:18:01,475 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 14:18:01,478 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:01,480 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:01,482 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:01,482 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:01,483 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:01,483 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:18:01,484 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:01,484 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:01,484 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:18:01,485 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:18:01,485 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:18:01,486 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:01,528 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 14:18:01,529 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2072900164]
[2020-09-25 14:18:01,532 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 14:18:01,533 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-25 14:18:01,534 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141616293]
[2020-09-25 14:18:01,544 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-25 14:18:01,544 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 14:18:01,566 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-25 14:18:01,567 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-25 14:18:01,570 INFO  L87              Difference]: Start difference. First operand 258 states. Second operand 4 states.
[2020-09-25 14:18:02,270 WARN  L193               SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 14:18:03,069 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 14:18:03,069 INFO  L93              Difference]: Finished difference Result 365 states and 438 transitions.
[2020-09-25 14:18:03,070 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-09-25 14:18:03,071 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 153
[2020-09-25 14:18:03,073 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 14:18:03,091 INFO  L225             Difference]: With dead ends: 365
[2020-09-25 14:18:03,091 INFO  L226             Difference]: Without dead ends: 238
[2020-09-25 14:18:03,097 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-25 14:18:03,119 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 238 states.
[2020-09-25 14:18:03,192 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 201.
[2020-09-25 14:18:03,195 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 201 states.
[2020-09-25 14:18:03,198 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 214 transitions.
[2020-09-25 14:18:03,205 INFO  L78                 Accepts]: Start accepts. Automaton has 201 states and 214 transitions. Word has length 153
[2020-09-25 14:18:03,207 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 14:18:03,208 INFO  L479      AbstractCegarLoop]: Abstraction has 201 states and 214 transitions.
[2020-09-25 14:18:03,208 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-25 14:18:03,209 INFO  L276                IsEmpty]: Start isEmpty. Operand 201 states and 214 transitions.
[2020-09-25 14:18:03,217 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 158
[2020-09-25 14:18:03,218 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 14:18:03,218 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]
[2020-09-25 14:18:03,219 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 14:18:03,219 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 14:18:03,219 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 14:18:03,220 INFO  L82        PathProgramCache]: Analyzing trace with hash -812596280, now seen corresponding path program 1 times
[2020-09-25 14:18:03,221 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 14:18:03,221 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1073159629]
[2020-09-25 14:18:03,221 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 14:18:03,291 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:03,355 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:03,623 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:06,515 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:06,516 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 192
[2020-09-25 14:18:06,516 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 14:18:06,516 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3219
[2020-09-25 14:18:06,517 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:06,517 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:06,517 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 14:18:06,517 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 80
[2020-09-25 14:18:06,517 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 96
[2020-09-25 14:18:06,518 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:06,860 WARN  L193               SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 14:18:06,861 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 14:18:06,892 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:06,929 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:07,148 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:07,148 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 14:18:07,149 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:07,149 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 253
[2020-09-25 14:18:07,149 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:07,150 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:07,150 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:07,150 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:07,151 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 76
[2020-09-25 14:18:07,151 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:07,204 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 14:18:07,205 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:07,207 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:07,210 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:07,211 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:07,211 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:07,212 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 14:18:07,212 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:07,213 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:07,213 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:07,214 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:07,214 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:07,215 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 14:18:07,216 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 14:18:07,217 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:07,219 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:07,222 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:07,222 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:07,222 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:07,223 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:18:07,223 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:07,224 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:07,224 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:07,225 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:07,225 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:07,226 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 14:18:07,228 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 14:18:07,229 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:07,231 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:07,239 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:07,240 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:07,240 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:07,241 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-25 14:18:07,241 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:07,241 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:07,242 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:07,242 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:07,243 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:18:07,243 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 14:18:07,246 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 14:18:07,247 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:07,248 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:07,251 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:07,252 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:07,252 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:07,253 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 14:18:07,253 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:07,254 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:07,254 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:07,254 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:07,255 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:07,255 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 14:18:07,257 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2020-09-25 14:18:07,265 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:07,267 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:07,269 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:07,270 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:07,270 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:07,270 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:18:07,270 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:07,299 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:07,299 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:07,300 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:07,300 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:07,300 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 29
[2020-09-25 14:18:07,304 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125
[2020-09-25 14:18:07,305 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:07,307 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:07,310 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:07,310 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:07,311 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:07,311 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 14:18:07,311 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:07,311 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:07,312 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:07,312 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:07,312 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:18:07,312 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:07,314 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135
[2020-09-25 14:18:07,316 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:07,317 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:07,324 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:07,325 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:07,325 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:07,325 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 14:18:07,325 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:07,325 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:07,326 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 14:18:07,326 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:07,326 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:18:07,326 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:07,357 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145
[2020-09-25 14:18:07,358 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:07,360 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:07,361 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:07,362 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:07,362 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:07,362 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 14:18:07,362 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:07,363 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:07,363 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:18:07,363 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:18:07,363 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:18:07,364 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:07,407 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 14:18:07,408 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1073159629]
[2020-09-25 14:18:07,408 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 14:18:07,409 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-25 14:18:07,409 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724181609]
[2020-09-25 14:18:07,411 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 14:18:07,411 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 14:18:07,412 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 14:18:07,412 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-25 14:18:07,412 INFO  L87              Difference]: Start difference. First operand 201 states and 214 transitions. Second operand 8 states.
[2020-09-25 14:18:07,953 WARN  L193               SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 14:18:09,264 WARN  L193               SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 14:18:09,577 WARN  L193               SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 14:18:09,928 WARN  L193               SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 14:18:10,291 WARN  L193               SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 14:18:10,639 WARN  L193               SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 14:18:10,949 WARN  L193               SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 14:18:11,257 WARN  L193               SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 14:18:11,865 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 14:18:11,865 INFO  L93              Difference]: Finished difference Result 405 states and 472 transitions.
[2020-09-25 14:18:11,866 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-25 14:18:11,866 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 157
[2020-09-25 14:18:11,867 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 14:18:11,871 INFO  L225             Difference]: With dead ends: 405
[2020-09-25 14:18:11,871 INFO  L226             Difference]: Without dead ends: 314
[2020-09-25 14:18:11,873 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-25 14:18:11,874 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 314 states.
[2020-09-25 14:18:11,930 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 282.
[2020-09-25 14:18:11,930 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 282 states.
[2020-09-25 14:18:11,932 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 314 transitions.
[2020-09-25 14:18:11,933 INFO  L78                 Accepts]: Start accepts. Automaton has 282 states and 314 transitions. Word has length 157
[2020-09-25 14:18:11,933 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 14:18:11,933 INFO  L479      AbstractCegarLoop]: Abstraction has 282 states and 314 transitions.
[2020-09-25 14:18:11,933 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 14:18:11,934 INFO  L276                IsEmpty]: Start isEmpty. Operand 282 states and 314 transitions.
[2020-09-25 14:18:11,937 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 172
[2020-09-25 14:18:11,937 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 14:18:11,938 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]
[2020-09-25 14:18:11,938 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 14:18:11,938 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 14:18:11,938 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 14:18:11,938 INFO  L82        PathProgramCache]: Analyzing trace with hash 1613053112, now seen corresponding path program 1 times
[2020-09-25 14:18:11,939 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 14:18:11,939 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [993674997]
[2020-09-25 14:18:11,939 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 14:18:11,998 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 14:18:12,006 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 14:18:12,007 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 14:18:12,012 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 14:18:12,038 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:18:12 BoogieIcfgContainer
[2020-09-25 14:18:12,039 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 14:18:12,041 INFO  L168              Benchmark]: Toolchain (without parser) took 18827.31 ms. Allocated memory was 146.3 MB in the beginning and 449.8 MB in the end (delta: 303.6 MB). Free memory was 101.7 MB in the beginning and 130.6 MB in the end (delta: -28.9 MB). Peak memory consumption was 274.7 MB. Max. memory is 7.1 GB.
[2020-09-25 14:18:12,042 INFO  L168              Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 146.3 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 14:18:12,043 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 719.86 ms. Allocated memory was 146.3 MB in the beginning and 201.3 MB in the end (delta: 55.1 MB). Free memory was 101.0 MB in the beginning and 170.7 MB in the end (delta: -69.7 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB.
[2020-09-25 14:18:12,044 INFO  L168              Benchmark]: Boogie Preprocessor took 105.80 ms. Allocated memory is still 201.3 MB. Free memory was 170.7 MB in the beginning and 167.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB.
[2020-09-25 14:18:12,045 INFO  L168              Benchmark]: RCFGBuilder took 1256.01 ms. Allocated memory was 201.3 MB in the beginning and 234.9 MB in the end (delta: 33.6 MB). Free memory was 166.3 MB in the beginning and 182.2 MB in the end (delta: -15.9 MB). Peak memory consumption was 84.3 MB. Max. memory is 7.1 GB.
[2020-09-25 14:18:12,046 INFO  L168              Benchmark]: TraceAbstraction took 16737.24 ms. Allocated memory was 234.9 MB in the beginning and 449.8 MB in the end (delta: 215.0 MB). Free memory was 182.2 MB in the beginning and 130.6 MB in the end (delta: 51.6 MB). Peak memory consumption was 266.6 MB. Max. memory is 7.1 GB.
[2020-09-25 14:18:12,050 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.21 ms. Allocated memory is still 146.3 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 719.86 ms. Allocated memory was 146.3 MB in the beginning and 201.3 MB in the end (delta: 55.1 MB). Free memory was 101.0 MB in the beginning and 170.7 MB in the end (delta: -69.7 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 105.80 ms. Allocated memory is still 201.3 MB. Free memory was 170.7 MB in the beginning and 167.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1256.01 ms. Allocated memory was 201.3 MB in the beginning and 234.9 MB in the end (delta: 33.6 MB). Free memory was 166.3 MB in the beginning and 182.2 MB in the end (delta: -15.9 MB). Peak memory consumption was 84.3 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 16737.24 ms. Allocated memory was 234.9 MB in the beginning and 449.8 MB in the end (delta: 215.0 MB). Free memory was 182.2 MB in the beginning and 130.6 MB in the end (delta: 51.6 MB). Peak memory consumption was 266.6 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: 16.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 6.0s, 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, 2.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 3.4s 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, 9.7s InterpolantComputationTime, 481 NumberOfCodeBlocks, 481 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 308 ConstructedInterpolants, 0 QuantifiedInterpolants, 128820 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...