/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_product13.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 14:18:18,559 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 14:18:18,563 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 14:18:18,604 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 14:18:18,604 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 14:18:18,612 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 14:18:18,614 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 14:18:18,617 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 14:18:18,620 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 14:18:18,623 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 14:18:18,624 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 14:18:18,625 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 14:18:18,626 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 14:18:18,628 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 14:18:18,631 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 14:18:18,632 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 14:18:18,634 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 14:18:18,635 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 14:18:18,637 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 14:18:18,645 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 14:18:18,647 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 14:18:18,648 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 14:18:18,649 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 14:18:18,650 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 14:18:18,663 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 14:18:18,663 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 14:18:18,663 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 14:18:18,671 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 14:18:18,672 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 14:18:18,673 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 14:18:18,674 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 14:18:18,675 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 14:18:18,676 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 14:18:18,677 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 14:18:18,680 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 14:18:18,680 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 14:18:18,681 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 14:18:18,681 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 14:18:18,681 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 14:18:18,682 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 14:18:18,683 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 14:18:18,685 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 14:18:18,724 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 14:18:18,724 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 14:18:18,726 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 14:18:18,726 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 14:18:18,726 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 14:18:18,726 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 14:18:18,727 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 14:18:18,727 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 14:18:18,727 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 14:18:18,727 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 14:18:18,727 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 14:18:18,728 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 14:18:18,728 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 14:18:18,728 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 14:18:18,728 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 14:18:18,728 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 14:18:18,729 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 14:18:18,729 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 14:18:18,729 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 14:18:18,729 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 14:18:18,729 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 14:18:18,730 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 14:18:18,730 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 14:18:18,730 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 14:18:18,730 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 14:18:18,730 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 14:18:18,731 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 14:18:18,731 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 14:18:18,731 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 14:18:18,731 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 14:18:19,176 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 14:18:19,202 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 14:18:19,209 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 14:18:19,211 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 14:18:19,211 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 14:18:19,213 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product13.cil.c
[2020-09-25 14:18:19,291 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c5e54c620/8381b232bc0545eb859437f20e2822dd/FLAG92afcc603
[2020-09-25 14:18:19,831 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 14:18:19,832 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product13.cil.c
[2020-09-25 14:18:19,850 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c5e54c620/8381b232bc0545eb859437f20e2822dd/FLAG92afcc603
[2020-09-25 14:18:20,103 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c5e54c620/8381b232bc0545eb859437f20e2822dd
[2020-09-25 14:18:20,115 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 14:18:20,121 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 14:18:20,122 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 14:18:20,122 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 14:18:20,127 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 14:18:20,128 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:18:20" (1/1) ...
[2020-09-25 14:18:20,133 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4365ba2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:20, skipping insertion in model container
[2020-09-25 14:18:20,133 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:18:20" (1/1) ...
[2020-09-25 14:18:20,143 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 14:18:20,209 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 14:18:20,612 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 14:18:20,626 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 14:18:20,803 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 14:18:20,846 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 14:18:20,847 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:20 WrapperNode
[2020-09-25 14:18:20,847 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 14:18:20,848 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 14:18:20,848 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 14:18:20,848 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 14:18:20,862 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:20" (1/1) ...
[2020-09-25 14:18:20,862 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:20" (1/1) ...
[2020-09-25 14:18:20,883 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:20" (1/1) ...
[2020-09-25 14:18:20,883 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:20" (1/1) ...
[2020-09-25 14:18:20,929 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:20" (1/1) ...
[2020-09-25 14:18:20,943 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:20" (1/1) ...
[2020-09-25 14:18:20,948 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:20" (1/1) ...
[2020-09-25 14:18:20,969 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 14:18:20,969 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 14:18:20,970 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 14:18:20,970 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 14:18:20,971 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:20" (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 14:18:21,070 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 14:18:21,070 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 14:18:21,070 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 14:18:21,071 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 14:18:21,071 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 14:18:21,071 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 14:18:21,071 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 14:18:21,072 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 14:18:21,072 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 14:18:21,073 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 14:18:21,073 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 14:18:21,073 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 14:18:21,073 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 14:18:21,073 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 14:18:21,074 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 14:18:21,075 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 14:18:21,075 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 14:18:21,075 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 14:18:21,075 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 14:18:21,076 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 14:18:21,076 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery
[2020-09-25 14:18:21,076 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 14:18:21,076 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base
[2020-09-25 14:18:21,077 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 14:18:21,077 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 14:18:21,077 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 14:18:21,078 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 14:18:21,078 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 14:18:21,078 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 14:18:21,078 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 14:18:21,078 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 14:18:21,078 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 14:18:21,079 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 14:18:21,079 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 14:18:21,079 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 14:18:21,079 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 14:18:21,079 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 14:18:21,079 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 14:18:21,079 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 14:18:21,080 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 14:18:21,080 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 14:18:21,080 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 14:18:21,080 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 14:18:21,080 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 14:18:21,080 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 14:18:21,081 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 14:18:21,081 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 14:18:21,082 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 14:18:21,082 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 14:18:21,082 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 14:18:21,083 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 14:18:21,083 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 14:18:21,083 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 14:18:21,083 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 14:18:21,083 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 14:18:21,084 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 14:18:21,084 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 14:18:21,084 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 14:18:21,084 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 14:18:21,084 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 14:18:21,084 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 14:18:21,084 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 14:18:21,085 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 14:18:21,085 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 14:18:21,085 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery
[2020-09-25 14:18:21,085 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 14:18:21,085 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base
[2020-09-25 14:18:21,086 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 14:18:21,086 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 14:18:21,086 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 14:18:21,087 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 14:18:21,088 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 14:18:21,088 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 14:18:21,088 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 14:18:21,089 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 14:18:21,089 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 14:18:21,089 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 14:18:21,089 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 14:18:21,089 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 14:18:21,089 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 14:18:21,090 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 14:18:21,090 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 14:18:21,090 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 14:18:21,091 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 14:18:21,091 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 14:18:21,091 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 14:18:22,148 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 14:18:22,148 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 14:18:22,155 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:18:22 BoogieIcfgContainer
[2020-09-25 14:18:22,155 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 14:18:22,156 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 14:18:22,157 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 14:18:22,160 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 14:18:22,160 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:18:20" (1/3) ...
[2020-09-25 14:18:22,161 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d013a3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:18:22, skipping insertion in model container
[2020-09-25 14:18:22,161 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:20" (2/3) ...
[2020-09-25 14:18:22,162 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d013a3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:18:22, skipping insertion in model container
[2020-09-25 14:18:22,162 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:18:22" (3/3) ...
[2020-09-25 14:18:22,164 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product13.cil.c
[2020-09-25 14:18:22,176 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 14:18:22,187 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 14:18:22,209 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 14:18:22,241 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 14:18:22,242 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 14:18:22,242 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 14:18:22,242 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 14:18:22,242 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 14:18:22,242 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 14:18:22,242 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 14:18:22,243 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 14:18:22,267 INFO  L276                IsEmpty]: Start isEmpty. Operand 285 states.
[2020-09-25 14:18:22,284 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 14:18:22,285 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 14:18:22,286 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 14:18:22,287 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 14:18:22,295 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 14:18:22,295 INFO  L82        PathProgramCache]: Analyzing trace with hash -1381778522, now seen corresponding path program 1 times
[2020-09-25 14:18:22,306 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 14:18:22,307 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [651925176]
[2020-09-25 14:18:22,307 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 14:18:22,612 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:22,735 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:22,945 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:23,402 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:26,747 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:26,748 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 14:18:26,749 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 14:18:26,749 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4126
[2020-09-25 14:18:26,753 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:26,754 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:26,754 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:26,755 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 81
[2020-09-25 14:18:26,755 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 59
[2020-09-25 14:18:26,755 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 6
[2020-09-25 14:18:27,182 WARN  L193               SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 14:18:27,184 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 14:18:27,222 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:27,260 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:27,476 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:27,477 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 14:18:27,477 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:27,477 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 253
[2020-09-25 14:18:27,478 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:27,478 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:27,478 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:27,478 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:27,479 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 77
[2020-09-25 14:18:27,479 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:27,543 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 14:18:27,544 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:27,546 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:27,549 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:27,549 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:27,550 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:27,550 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 14:18:27,550 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:27,550 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:27,551 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:27,551 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:27,551 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:27,551 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:27,553 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 14:18:27,554 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:27,555 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:27,559 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:27,559 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:27,559 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:27,559 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 14:18:27,560 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:27,560 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:27,560 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:27,560 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:27,561 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:27,561 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:27,562 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 14:18:27,564 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:27,566 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:27,573 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:27,574 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:27,574 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:27,574 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-25 14:18:27,574 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:27,575 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:27,575 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:27,575 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:27,575 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:18:27,576 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:27,578 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 14:18:27,579 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:27,580 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:27,583 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:27,584 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:27,584 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:27,584 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 14:18:27,584 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:27,585 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:27,585 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:27,585 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:27,585 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:27,586 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:27,587 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 14:18:27,588 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:27,589 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:27,591 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:27,591 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:27,592 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:27,592 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 14:18:27,592 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:27,592 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:27,593 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:18:27,593 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:18:27,593 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:18:27,593 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:27,595 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 14:18:27,596 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:27,597 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:27,599 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:27,599 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:27,600 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:27,600 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 14:18:27,600 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:27,600 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:27,600 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:18:27,601 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:18:27,601 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:18:27,601 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:27,603 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 14:18:27,604 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:27,605 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:27,607 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:27,607 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:27,608 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:27,608 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:18:27,608 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:27,608 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:27,609 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:18:27,609 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:18:27,609 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:18:27,609 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:27,641 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 14:18:27,642 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [651925176]
[2020-09-25 14:18:27,644 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 14:18:27,644 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-25 14:18:27,645 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491816658]
[2020-09-25 14:18:27,651 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-25 14:18:27,652 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 14:18:27,669 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-25 14:18:27,670 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-25 14:18:27,673 INFO  L87              Difference]: Start difference. First operand 285 states. Second operand 4 states.
[2020-09-25 14:18:28,205 WARN  L193               SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 14:18:29,137 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 14:18:29,137 INFO  L93              Difference]: Finished difference Result 413 states and 495 transitions.
[2020-09-25 14:18:29,138 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-09-25 14:18:29,140 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 153
[2020-09-25 14:18:29,141 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 14:18:29,163 INFO  L225             Difference]: With dead ends: 413
[2020-09-25 14:18:29,163 INFO  L226             Difference]: Without dead ends: 263
[2020-09-25 14:18:29,169 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
[2020-09-25 14:18:29,191 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 263 states.
[2020-09-25 14:18:29,286 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 224.
[2020-09-25 14:18:29,287 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 224 states.
[2020-09-25 14:18:29,292 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 241 transitions.
[2020-09-25 14:18:29,295 INFO  L78                 Accepts]: Start accepts. Automaton has 224 states and 241 transitions. Word has length 153
[2020-09-25 14:18:29,297 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 14:18:29,298 INFO  L479      AbstractCegarLoop]: Abstraction has 224 states and 241 transitions.
[2020-09-25 14:18:29,299 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-25 14:18:29,299 INFO  L276                IsEmpty]: Start isEmpty. Operand 224 states and 241 transitions.
[2020-09-25 14:18:29,305 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 163
[2020-09-25 14:18:29,306 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 14:18:29,306 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 14:18:29,306 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 14:18:29,307 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 14:18:29,307 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 14:18:29,307 INFO  L82        PathProgramCache]: Analyzing trace with hash -483047781, now seen corresponding path program 1 times
[2020-09-25 14:18:29,307 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 14:18:29,308 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1120401249]
[2020-09-25 14:18:29,308 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 14:18:29,361 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:29,415 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:29,613 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:32,337 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:32,337 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 199
[2020-09-25 14:18:32,338 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 14:18:32,338 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2973
[2020-09-25 14:18:32,338 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:32,338 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:32,339 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 14:18:32,339 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 77
[2020-09-25 14:18:32,339 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 106
[2020-09-25 14:18:32,339 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:32,698 WARN  L193               SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 14:18:32,699 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 14:18:32,729 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:32,763 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:32,945 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:32,945 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 14:18:32,945 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:32,946 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 214
[2020-09-25 14:18:32,946 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:32,946 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:32,946 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:32,946 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:32,947 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 73
[2020-09-25 14:18:32,947 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:33,000 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 14:18:33,001 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:33,003 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:33,006 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:33,007 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:33,007 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:33,007 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 14:18:33,007 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:33,007 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:33,008 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:33,008 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:33,009 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:33,009 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:33,010 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 14:18:33,011 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:33,022 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:33,025 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:33,026 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:33,026 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:33,026 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 13
[2020-09-25 14:18:33,026 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:33,027 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:33,027 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:33,027 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:33,027 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:33,028 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:33,030 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 14:18:33,032 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:33,034 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:33,042 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:33,042 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:33,042 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:33,043 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-25 14:18:33,043 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:33,043 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:33,044 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:33,044 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:33,044 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:18:33,045 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:33,048 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 14:18:33,048 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:33,049 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:33,052 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:33,053 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:33,053 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:33,054 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:18:33,054 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:33,054 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:33,054 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:33,055 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:33,055 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:33,055 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:33,078 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2020-09-25 14:18:33,079 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:33,082 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:33,084 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:33,084 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-25 14:18:33,085 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:33,085 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 14:18:33,085 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:33,085 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:33,085 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:33,086 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:33,086 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-09-25 14:18:33,086 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:33,088 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 14:18:33,088 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:33,089 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:33,091 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:33,091 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:33,091 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:33,091 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 14:18:33,092 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:33,092 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:33,092 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:18:33,092 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:33,093 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:18:33,093 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:33,094 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130
[2020-09-25 14:18:33,098 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:33,099 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:33,102 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:33,103 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:33,103 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:33,103 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 14:18:33,103 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:33,104 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:33,104 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:33,104 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:33,104 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:18:33,104 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:33,106 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-25 14:18:33,107 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:33,109 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:33,117 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:33,120 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:33,120 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:33,120 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-25 14:18:33,120 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:33,121 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:33,121 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 14:18:33,121 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:33,121 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:18:33,122 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:33,157 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-25 14:18:33,158 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:33,160 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:33,163 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:33,163 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:33,163 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:33,163 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 14:18:33,164 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:33,164 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:33,164 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:18:33,164 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:18:33,165 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:18:33,165 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:33,250 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 14:18:33,251 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1120401249]
[2020-09-25 14:18:33,252 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 14:18:33,252 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2020-09-25 14:18:33,252 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267655392]
[2020-09-25 14:18:33,257 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-09-25 14:18:33,257 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 14:18:33,257 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-09-25 14:18:33,258 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90
[2020-09-25 14:18:33,258 INFO  L87              Difference]: Start difference. First operand 224 states and 241 transitions. Second operand 10 states.
[2020-09-25 14:18:33,965 WARN  L193               SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 14:18:36,169 WARN  L193               SmtUtils]: Spent 586.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188
[2020-09-25 14:18:36,871 WARN  L193               SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190
[2020-09-25 14:18:37,208 WARN  L193               SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 14:18:37,538 WARN  L193               SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-25 14:18:37,874 WARN  L193               SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 14:18:38,354 WARN  L193               SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-25 14:18:38,665 WARN  L193               SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 192
[2020-09-25 14:18:39,004 WARN  L193               SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 14:18:39,918 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 14:18:39,919 INFO  L93              Difference]: Finished difference Result 554 states and 701 transitions.
[2020-09-25 14:18:39,919 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2020-09-25 14:18:39,919 INFO  L78                 Accepts]: Start accepts. Automaton has 10 states. Word has length 162
[2020-09-25 14:18:39,921 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 14:18:39,927 INFO  L225             Difference]: With dead ends: 554
[2020-09-25 14:18:39,927 INFO  L226             Difference]: Without dead ends: 416
[2020-09-25 14:18:39,930 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380
[2020-09-25 14:18:39,931 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 416 states.
[2020-09-25 14:18:39,998 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 323.
[2020-09-25 14:18:39,998 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 323 states.
[2020-09-25 14:18:40,000 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 358 transitions.
[2020-09-25 14:18:40,001 INFO  L78                 Accepts]: Start accepts. Automaton has 323 states and 358 transitions. Word has length 162
[2020-09-25 14:18:40,001 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 14:18:40,001 INFO  L479      AbstractCegarLoop]: Abstraction has 323 states and 358 transitions.
[2020-09-25 14:18:40,001 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-09-25 14:18:40,002 INFO  L276                IsEmpty]: Start isEmpty. Operand 323 states and 358 transitions.
[2020-09-25 14:18:40,005 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 177
[2020-09-25 14:18:40,006 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 14:18:40,006 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 14:18:40,006 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 14:18:40,006 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 14:18:40,007 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 14:18:40,007 INFO  L82        PathProgramCache]: Analyzing trace with hash -426197068, now seen corresponding path program 1 times
[2020-09-25 14:18:40,007 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 14:18:40,007 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [43599718]
[2020-09-25 14:18:40,008 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 14:18:40,071 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 14:18:40,079 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 14:18:40,079 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 14:18:40,084 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 14:18:40,112 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:18:40 BoogieIcfgContainer
[2020-09-25 14:18:40,112 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 14:18:40,115 INFO  L168              Benchmark]: Toolchain (without parser) took 19997.71 ms. Allocated memory was 139.5 MB in the beginning and 500.7 MB in the end (delta: 361.2 MB). Free memory was 101.7 MB in the beginning and 354.7 MB in the end (delta: -253.0 MB). Peak memory consumption was 108.3 MB. Max. memory is 7.1 GB.
[2020-09-25 14:18:40,115 INFO  L168              Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 14:18:40,116 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 725.81 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 101.1 MB in the beginning and 173.3 MB in the end (delta: -72.2 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB.
[2020-09-25 14:18:40,117 INFO  L168              Benchmark]: Boogie Preprocessor took 121.07 ms. Allocated memory is still 203.4 MB. Free memory was 173.3 MB in the beginning and 169.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB.
[2020-09-25 14:18:40,118 INFO  L168              Benchmark]: RCFGBuilder took 1185.92 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 169.1 MB in the beginning and 182.6 MB in the end (delta: -13.4 MB). Peak memory consumption was 85.2 MB. Max. memory is 7.1 GB.
[2020-09-25 14:18:40,119 INFO  L168              Benchmark]: TraceAbstraction took 17956.17 ms. Allocated memory was 237.0 MB in the beginning and 500.7 MB in the end (delta: 263.7 MB). Free memory was 182.6 MB in the beginning and 354.7 MB in the end (delta: -172.1 MB). Peak memory consumption was 91.6 MB. Max. memory is 7.1 GB.
[2020-09-25 14:18:40,123 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.25 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 725.81 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 101.1 MB in the beginning and 173.3 MB in the end (delta: -72.2 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 121.07 ms. Allocated memory is still 203.4 MB. Free memory was 173.3 MB in the beginning and 169.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1185.92 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 169.1 MB in the beginning and 182.6 MB in the end (delta: -13.4 MB). Peak memory consumption was 85.2 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 17956.17 ms. Allocated memory was 237.0 MB in the beginning and 500.7 MB in the end (delta: 263.7 MB). Free memory was 182.6 MB in the beginning and 354.7 MB in the end (delta: -172.1 MB). Peak memory consumption was 91.6 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 168]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L46]               int waterLevel  =    1;
[L47]               int methaneLevelCritical  =    0;
[L173]              int cleanupTimeShifts  =    4;
[L275]              int pumpRunning  =    0;
[L276]              int systemActive  =    1;
[L694]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L249]              int retValue_acc ;
[L250]              int tmp ;
[L254]  FCALL       select_helpers()
[L255]  FCALL       select_features()
[L256]  CALL, EXPR  valid_product()
[L155]              int retValue_acc ;
[L158]              retValue_acc = 1
[L159]              return (retValue_acc);
[L256]  RET, EXPR   valid_product()
[L256]              tmp = valid_product()
[L258]  COND TRUE   \read(tmp)
[L260]  FCALL       setup()
[L261]  CALL        runTest()
[L243]  CALL        test()
[L461]              int splverifierCounter ;
[L462]              int tmp ;
[L463]              int tmp___0 ;
[L464]              int tmp___1 ;
[L465]              int tmp___2 ;
[L468]              splverifierCounter = 0
[L470]  COND TRUE   1
[L472]  COND TRUE   splverifierCounter < 4
[L478]              tmp = __VERIFIER_nondet_int()
[L480]  COND TRUE   \read(tmp)
[L482]  CALL        waterRise()
[L64]   COND TRUE   waterLevel < 2
[L65]               waterLevel = waterLevel + 1
[L482]  RET         waterRise()
[L488]              tmp___0 = __VERIFIER_nondet_int()
[L490]  COND FALSE  !(\read(tmp___0))
[L498]              tmp___2 = __VERIFIER_nondet_int()
[L500]  COND TRUE   \read(tmp___2)
[L513]  CALL        timeShift()
[L283]  COND FALSE  !(\read(pumpRunning))
[L290]  COND TRUE   \read(systemActive)
[L292]  CALL        processEnvironment()
[L312]              int tmp ;
[L315]  COND FALSE  !(\read(pumpRunning))
[L330]  FCALL       processEnvironment__wrappee__methaneQuery()
[L292]  RET         processEnvironment()
[L298]  CALL        __utac_acc__Specification3_spec__1()
[L427]              int tmp ;
[L428]              int tmp___0 ;
[L429]              int tmp___1 ;
[L433]  CALL, EXPR  isMethaneLevelCritical()
[L85]               int retValue_acc ;
[L88]               retValue_acc = methaneLevelCritical
[L89]               return (retValue_acc);
[L433]  RET, EXPR   isMethaneLevelCritical()
[L433]              tmp = isMethaneLevelCritical()
[L435]  COND FALSE  !(\read(tmp))
[L439]  CALL, EXPR  getWaterLevel()
[L117]              int retValue_acc ;
[L120]              retValue_acc = waterLevel
[L121]              return (retValue_acc);
[L439]  RET, EXPR   getWaterLevel()
[L439]              tmp___0 = getWaterLevel()
[L441]  COND TRUE   tmp___0 == 2
[L443]  CALL, EXPR  isPumpRunning()
[L381]              int retValue_acc ;
[L384]              retValue_acc = pumpRunning
[L385]              return (retValue_acc);
[L443]  RET, EXPR   isPumpRunning()
[L443]              tmp___1 = isPumpRunning()
[L445]  COND FALSE  !(\read(tmp___1))
[L449]  CALL        __automaton_fail()
[L168]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 36 procedures, 599 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 443 SDtfs, 753 SDslu, 762 SDs, 0 SdLazy, 1507 SolverSat, 246 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=323occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 132 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 8.8s InterpolantComputationTime, 491 NumberOfCodeBlocks, 491 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 313 ConstructedInterpolants, 0 QuantifiedInterpolants, 140719 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...