/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_product23.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 14:18:42,013 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 14:18:42,018 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 14:18:42,061 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 14:18:42,061 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 14:18:42,072 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 14:18:42,074 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 14:18:42,078 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 14:18:42,081 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 14:18:42,084 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 14:18:42,085 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 14:18:42,086 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 14:18:42,087 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 14:18:42,089 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 14:18:42,092 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 14:18:42,094 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 14:18:42,096 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 14:18:42,097 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 14:18:42,098 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 14:18:42,109 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 14:18:42,111 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 14:18:42,112 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 14:18:42,113 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 14:18:42,114 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 14:18:42,117 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 14:18:42,118 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 14:18:42,118 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 14:18:42,121 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 14:18:42,122 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 14:18:42,124 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 14:18:42,124 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 14:18:42,125 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 14:18:42,126 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 14:18:42,127 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 14:18:42,128 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 14:18:42,128 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 14:18:42,130 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 14:18:42,130 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 14:18:42,130 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 14:18:42,131 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 14:18:42,133 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 14:18:42,134 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 14:18:42,183 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 14:18:42,183 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 14:18:42,186 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 14:18:42,186 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 14:18:42,186 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 14:18:42,186 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 14:18:42,187 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 14:18:42,187 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 14:18:42,187 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 14:18:42,187 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 14:18:42,188 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 14:18:42,189 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 14:18:42,189 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 14:18:42,189 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 14:18:42,189 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 14:18:42,190 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 14:18:42,190 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 14:18:42,190 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 14:18:42,190 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 14:18:42,191 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 14:18:42,191 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 14:18:42,191 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 14:18:42,191 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 14:18:42,191 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 14:18:42,191 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 14:18:42,192 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 14:18:42,192 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 14:18:42,192 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 14:18:42,192 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 14:18:42,192 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 14:18:42,638 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 14:18:42,663 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 14:18:42,668 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 14:18:42,670 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 14:18:42,672 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 14:18:42,674 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product23.cil.c
[2020-09-25 14:18:42,751 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8752f29cf/01544246d3cd40bf9209f503ccb15886/FLAG33c3790d2
[2020-09-25 14:18:43,427 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 14:18:43,428 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product23.cil.c
[2020-09-25 14:18:43,443 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8752f29cf/01544246d3cd40bf9209f503ccb15886/FLAG33c3790d2
[2020-09-25 14:18:43,709 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8752f29cf/01544246d3cd40bf9209f503ccb15886
[2020-09-25 14:18:43,722 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 14:18:43,728 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 14:18:43,729 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 14:18:43,729 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 14:18:43,734 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 14:18:43,735 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:18:43" (1/1) ...
[2020-09-25 14:18:43,740 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47743781 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:43, skipping insertion in model container
[2020-09-25 14:18:43,740 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:18:43" (1/1) ...
[2020-09-25 14:18:43,750 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 14:18:43,799 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 14:18:44,286 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 14:18:44,305 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 14:18:44,438 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 14:18:44,479 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 14:18:44,480 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:44 WrapperNode
[2020-09-25 14:18:44,480 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 14:18:44,481 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 14:18:44,481 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 14:18:44,481 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 14:18:44,500 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:44" (1/1) ...
[2020-09-25 14:18:44,501 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:44" (1/1) ...
[2020-09-25 14:18:44,529 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:44" (1/1) ...
[2020-09-25 14:18:44,530 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:44" (1/1) ...
[2020-09-25 14:18:44,583 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:44" (1/1) ...
[2020-09-25 14:18:44,604 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:44" (1/1) ...
[2020-09-25 14:18:44,613 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:44" (1/1) ...
[2020-09-25 14:18:44,621 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 14:18:44,622 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 14:18:44,622 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 14:18:44,622 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 14:18:44,624 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:44" (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 14:18:44,715 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 14:18:44,715 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 14:18:44,715 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 14:18:44,715 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 14:18:44,716 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 14:18:44,716 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 14:18:44,716 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 14:18:44,716 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 14:18:44,716 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 14:18:44,717 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-25 14:18:44,717 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 14:18:44,717 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 14:18:44,717 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 14:18:44,717 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor
[2020-09-25 14:18:44,718 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 14:18:44,718 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 14:18:44,718 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 14:18:44,718 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 14:18:44,718 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 14:18:44,719 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 14:18:44,719 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-25 14:18:44,719 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-25 14:18:44,719 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 14:18:44,720 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 14:18:44,720 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 14:18:44,720 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 14:18:44,720 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 14:18:44,720 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 14:18:44,720 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 14:18:44,721 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 14:18:44,721 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 14:18:44,721 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 14:18:44,721 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 14:18:44,721 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 14:18:44,721 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 14:18:44,722 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 14:18:44,722 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 14:18:44,722 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 14:18:44,722 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 14:18:44,722 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 14:18:44,722 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 14:18:44,723 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 14:18:44,723 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 14:18:44,723 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 14:18:44,723 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 14:18:44,723 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 14:18:44,723 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 14:18:44,724 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 14:18:44,724 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-25 14:18:44,724 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 14:18:44,724 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 14:18:44,724 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 14:18:44,724 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 14:18:44,725 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 14:18:44,725 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 14:18:44,725 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 14:18:44,725 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 14:18:44,725 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-25 14:18:44,725 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 14:18:44,726 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 14:18:44,726 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-25 14:18:44,726 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor
[2020-09-25 14:18:44,726 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 14:18:44,726 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 14:18:44,726 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 14:18:44,726 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 14:18:44,727 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 14:18:44,727 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 14:18:44,727 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 14:18:44,727 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 14:18:44,727 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 14:18:44,728 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 14:18:44,728 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 14:18:44,728 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 14:18:44,728 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 14:18:44,728 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 14:18:44,728 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 14:18:44,729 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 14:18:44,729 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 14:18:44,729 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 14:18:44,729 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 14:18:44,729 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 14:18:44,730 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 14:18:44,730 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 14:18:44,730 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 14:18:44,730 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 14:18:44,730 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 14:18:44,730 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 14:18:44,731 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 14:18:44,731 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 14:18:44,731 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 14:18:44,731 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 14:18:46,199 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 14:18:46,199 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 14:18:46,207 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:18:46 BoogieIcfgContainer
[2020-09-25 14:18:46,207 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 14:18:46,211 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 14:18:46,211 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 14:18:46,220 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 14:18:46,220 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:18:43" (1/3) ...
[2020-09-25 14:18:46,221 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6855dd69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:18:46, skipping insertion in model container
[2020-09-25 14:18:46,222 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:44" (2/3) ...
[2020-09-25 14:18:46,222 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6855dd69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:18:46, skipping insertion in model container
[2020-09-25 14:18:46,222 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:18:46" (3/3) ...
[2020-09-25 14:18:46,225 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product23.cil.c
[2020-09-25 14:18:46,234 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 14:18:46,245 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 14:18:46,269 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 14:18:46,305 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 14:18:46,306 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 14:18:46,306 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 14:18:46,306 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 14:18:46,306 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 14:18:46,306 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 14:18:46,306 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 14:18:46,307 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 14:18:46,338 INFO  L276                IsEmpty]: Start isEmpty. Operand 312 states.
[2020-09-25 14:18:46,359 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 14:18:46,359 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 14:18:46,361 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 14:18:46,362 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 14:18:46,370 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 14:18:46,371 INFO  L82        PathProgramCache]: Analyzing trace with hash -2023786864, now seen corresponding path program 1 times
[2020-09-25 14:18:46,384 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 14:18:46,385 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [536547933]
[2020-09-25 14:18:46,386 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 14:18:46,872 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:47,070 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:47,250 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:48,707 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:51,886 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:51,886 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 14:18:51,887 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 14:18:51,887 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5000
[2020-09-25 14:18:51,891 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:51,891 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:51,891 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 14:18:51,891 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 80
[2020-09-25 14:18:51,892 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 60
[2020-09-25 14:18:51,892 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-25 14:18:52,334 WARN  L193               SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 14:18:52,339 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 14:18:52,397 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:52,453 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:52,749 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:52,749 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 14:18:52,749 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:52,750 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 342
[2020-09-25 14:18:52,750 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:52,750 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:52,750 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:52,751 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:52,751 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 76
[2020-09-25 14:18:52,751 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:52,833 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 14:18:52,834 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:52,836 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:52,840 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:52,840 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:52,840 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:52,841 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 14:18:52,841 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:52,841 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:52,841 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:52,841 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:52,842 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:52,842 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:52,844 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 14:18:52,846 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:52,847 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:52,851 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:52,852 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:52,852 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:52,852 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 14:18:52,852 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:52,853 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:52,853 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:52,853 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:52,853 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:52,854 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:52,855 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 14:18:52,857 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:52,859 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:52,869 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:52,869 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:52,869 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:52,869 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-25 14:18:52,870 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:52,870 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:52,870 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:52,870 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:52,871 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:18:52,871 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:52,873 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 14:18:52,875 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:52,876 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:52,880 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:52,880 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:18:52,880 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:52,880 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 14:18:52,881 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:52,881 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:52,882 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:18:52,882 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:18:52,882 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:18:52,882 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:52,884 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 14:18:52,885 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:52,887 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:52,889 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:52,889 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:52,890 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:52,890 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:18:52,890 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:52,891 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:52,891 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:18:52,891 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:18:52,891 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:18:52,891 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:52,893 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 14:18:52,894 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:52,896 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:52,898 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:52,898 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:52,899 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:52,899 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:18:52,899 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:52,899 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:52,899 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:18:52,900 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:18:52,900 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:18:52,900 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:52,902 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 14:18:52,903 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:52,905 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:52,907 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:52,907 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:18:52,908 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:18:52,908 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:18:52,908 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:52,908 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:52,908 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:18:52,909 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:18:52,909 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:18:52,909 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:52,941 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 14:18:52,942 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [536547933]
[2020-09-25 14:18:52,945 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 14:18:52,945 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-25 14:18:52,946 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869724011]
[2020-09-25 14:18:52,953 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-25 14:18:52,953 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 14:18:52,972 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-25 14:18:52,973 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-25 14:18:52,976 INFO  L87              Difference]: Start difference. First operand 312 states. Second operand 4 states.
[2020-09-25 14:18:53,556 WARN  L193               SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 14:18:55,947 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 14:18:55,948 INFO  L93              Difference]: Finished difference Result 674 states and 823 transitions.
[2020-09-25 14:18:55,949 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-09-25 14:18:55,950 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 153
[2020-09-25 14:18:55,951 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 14:18:55,972 INFO  L225             Difference]: With dead ends: 674
[2020-09-25 14:18:55,973 INFO  L226             Difference]: Without dead ends: 473
[2020-09-25 14:18:55,979 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 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 14:18:55,998 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 473 states.
[2020-09-25 14:18:56,169 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 406.
[2020-09-25 14:18:56,171 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 406 states.
[2020-09-25 14:18:56,174 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 457 transitions.
[2020-09-25 14:18:56,177 INFO  L78                 Accepts]: Start accepts. Automaton has 406 states and 457 transitions. Word has length 153
[2020-09-25 14:18:56,178 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 14:18:56,178 INFO  L479      AbstractCegarLoop]: Abstraction has 406 states and 457 transitions.
[2020-09-25 14:18:56,178 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-25 14:18:56,178 INFO  L276                IsEmpty]: Start isEmpty. Operand 406 states and 457 transitions.
[2020-09-25 14:18:56,185 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 168
[2020-09-25 14:18:56,185 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 14:18:56,185 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]
[2020-09-25 14:18:56,186 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 14:18:56,186 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 14:18:56,186 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 14:18:56,187 INFO  L82        PathProgramCache]: Analyzing trace with hash 558569837, now seen corresponding path program 1 times
[2020-09-25 14:18:56,187 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 14:18:56,187 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [861599679]
[2020-09-25 14:18:56,187 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 14:18:56,246 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:56,300 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:56,519 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:59,386 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:59,387 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 206
[2020-09-25 14:18:59,387 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 14:18:59,387 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3137
[2020-09-25 14:18:59,387 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:18:59,388 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:18:59,388 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 14:18:59,388 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 77
[2020-09-25 14:18:59,388 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 113
[2020-09-25 14:18:59,389 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:18:59,710 WARN  L193               SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 14:18:59,712 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 14:18:59,744 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:18:59,781 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:18:59,998 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:18:59,999 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 14:18:59,999 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:19:00,000 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 253
[2020-09-25 14:19:00,000 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:19:00,001 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:19:00,001 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:19:00,001 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:19:00,002 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 73
[2020-09-25 14:19:00,002 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 14:19:00,052 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 14:19:00,053 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:19:00,055 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:19:00,058 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:19:00,058 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:19:00,059 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:19:00,059 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 14:19:00,059 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:19:00,060 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:19:00,060 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:19:00,060 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:19:00,060 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:19:00,061 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:19:00,062 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 14:19:00,063 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:19:00,064 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:19:00,067 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:19:00,067 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:19:00,067 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:19:00,067 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:19:00,068 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:19:00,068 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:19:00,068 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:19:00,068 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:19:00,069 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:19:00,069 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:19:00,070 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 14:19:00,072 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:19:00,073 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:19:00,081 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:19:00,081 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:19:00,081 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:19:00,082 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 14:19:00,082 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:19:00,082 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:19:00,082 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:19:00,083 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:19:00,083 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:19:00,083 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:19:00,085 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 14:19:00,086 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:19:00,088 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:19:00,090 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:19:00,091 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:19:00,091 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:19:00,091 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:19:00,092 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:19:00,092 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:19:00,092 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:19:00,093 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:19:00,093 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:19:00,093 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:19:00,104 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2020-09-25 14:19:00,106 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:19:00,109 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:19:00,112 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:19:00,113 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 22
[2020-09-25 14:19:00,113 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:19:00,113 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 14:19:00,113 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:19:00,114 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:19:00,114 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:19:00,114 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:19:00,114 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 18
[2020-09-25 14:19:00,115 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:19:00,117 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 14:19:00,118 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:19:00,120 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:19:00,121 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:19:00,122 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-25 14:19:00,122 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:19:00,122 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 14:19:00,123 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:19:00,123 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:19:00,123 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:19:00,124 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:19:00,124 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:19:00,150 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 27
[2020-09-25 14:19:00,151 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 14:19:00,152 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:19:00,159 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:19:00,160 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:19:00,161 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:19:00,161 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:19:00,161 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 14:19:00,161 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:19:00,162 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:19:00,162 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:19:00,162 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:19:00,163 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:19:00,163 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 14:19:00,165 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135
[2020-09-25 14:19:00,166 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:19:00,167 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:19:00,169 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:19:00,170 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:19:00,170 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:19:00,170 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:19:00,170 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:19:00,171 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:19:00,171 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:19:00,171 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:19:00,171 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:19:00,171 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:19:00,173 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145
[2020-09-25 14:19:00,174 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:19:00,184 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:19:00,193 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:19:00,193 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:19:00,193 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:19:00,194 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 18
[2020-09-25 14:19:00,194 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:19:00,194 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:19:00,194 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 14:19:00,194 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:19:00,195 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:19:00,195 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:19:00,217 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155
[2020-09-25 14:19:00,218 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:19:00,219 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:19:00,220 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:19:00,221 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:19:00,221 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:19:00,221 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 14:19:00,221 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:19:00,221 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:19:00,222 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:19:00,222 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:19:00,222 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:19:00,222 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:19:00,254 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 14:19:00,255 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [861599679]
[2020-09-25 14:19:00,255 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 14:19:00,255 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-09-25 14:19:00,255 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962271791]
[2020-09-25 14:19:00,258 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-25 14:19:00,258 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 14:19:00,258 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-25 14:19:00,258 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-09-25 14:19:00,259 INFO  L87              Difference]: Start difference. First operand 406 states and 457 transitions. Second operand 9 states.
[2020-09-25 14:19:00,788 WARN  L193               SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 14:19:02,919 WARN  L193               SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 14:19:03,223 WARN  L193               SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 14:19:03,621 WARN  L193               SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 14:19:03,943 WARN  L193               SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 14:19:04,233 WARN  L193               SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 14:19:04,537 WARN  L193               SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 14:19:04,851 WARN  L193               SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 14:19:06,315 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 14:19:06,315 INFO  L93              Difference]: Finished difference Result 1198 states and 1544 transitions.
[2020-09-25 14:19:06,316 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2020-09-25 14:19:06,316 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 167
[2020-09-25 14:19:06,317 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 14:19:06,327 INFO  L225             Difference]: With dead ends: 1198
[2020-09-25 14:19:06,328 INFO  L226             Difference]: Without dead ends: 855
[2020-09-25 14:19:06,333 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306
[2020-09-25 14:19:06,334 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 855 states.
[2020-09-25 14:19:06,488 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 679.
[2020-09-25 14:19:06,489 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 679 states.
[2020-09-25 14:19:06,493 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 785 transitions.
[2020-09-25 14:19:06,493 INFO  L78                 Accepts]: Start accepts. Automaton has 679 states and 785 transitions. Word has length 167
[2020-09-25 14:19:06,494 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 14:19:06,494 INFO  L479      AbstractCegarLoop]: Abstraction has 679 states and 785 transitions.
[2020-09-25 14:19:06,494 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-25 14:19:06,495 INFO  L276                IsEmpty]: Start isEmpty. Operand 679 states and 785 transitions.
[2020-09-25 14:19:06,500 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 178
[2020-09-25 14:19:06,500 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 14:19:06,501 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, 1]
[2020-09-25 14:19:06,501 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 14:19:06,501 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 14:19:06,501 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 14:19:06,502 INFO  L82        PathProgramCache]: Analyzing trace with hash 95529110, now seen corresponding path program 1 times
[2020-09-25 14:19:06,502 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 14:19:06,502 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1232087605]
[2020-09-25 14:19:06,503 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 14:19:06,561 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 14:19:06,569 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 14:19:06,569 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 14:19:06,575 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 14:19:06,603 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:19:06 BoogieIcfgContainer
[2020-09-25 14:19:06,603 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 14:19:06,606 INFO  L168              Benchmark]: Toolchain (without parser) took 22881.83 ms. Allocated memory was 141.0 MB in the beginning and 530.1 MB in the end (delta: 389.0 MB). Free memory was 101.5 MB in the beginning and 244.3 MB in the end (delta: -142.8 MB). Peak memory consumption was 246.2 MB. Max. memory is 7.1 GB.
[2020-09-25 14:19:06,607 INFO  L168              Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB.
[2020-09-25 14:19:06,608 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 751.82 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 101.0 MB in the beginning and 170.8 MB in the end (delta: -69.9 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB.
[2020-09-25 14:19:06,609 INFO  L168              Benchmark]: Boogie Preprocessor took 140.22 ms. Allocated memory is still 203.9 MB. Free memory was 170.8 MB in the beginning and 166.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB.
[2020-09-25 14:19:06,610 INFO  L168              Benchmark]: RCFGBuilder took 1585.51 ms. Allocated memory was 203.9 MB in the beginning and 235.4 MB in the end (delta: 31.5 MB). Free memory was 166.2 MB in the beginning and 171.5 MB in the end (delta: -5.4 MB). Peak memory consumption was 78.9 MB. Max. memory is 7.1 GB.
[2020-09-25 14:19:06,611 INFO  L168              Benchmark]: TraceAbstraction took 20392.72 ms. Allocated memory was 235.4 MB in the beginning and 530.1 MB in the end (delta: 294.6 MB). Free memory was 171.5 MB in the beginning and 244.3 MB in the end (delta: -72.8 MB). Peak memory consumption was 221.9 MB. Max. memory is 7.1 GB.
[2020-09-25 14:19:06,616 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.28 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 751.82 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 101.0 MB in the beginning and 170.8 MB in the end (delta: -69.9 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 140.22 ms. Allocated memory is still 203.9 MB. Free memory was 170.8 MB in the beginning and 166.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1585.51 ms. Allocated memory was 203.9 MB in the beginning and 235.4 MB in the end (delta: 31.5 MB). Free memory was 166.2 MB in the beginning and 171.5 MB in the end (delta: -5.4 MB). Peak memory consumption was 78.9 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 20392.72 ms. Allocated memory was 235.4 MB in the beginning and 530.1 MB in the end (delta: 294.6 MB). Free memory was 171.5 MB in the beginning and 244.3 MB in the end (delta: -72.8 MB). Peak memory consumption was 221.9 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 541]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L47]               int waterLevel  =    1;
[L48]               int methaneLevelCritical  =    0;
[L177]              int pumpRunning  =    0;
[L178]              int systemActive  =    1;
[L438]              int cleanupTimeShifts  =    4;
[L715]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L514]              int retValue_acc ;
[L515]              int tmp ;
[L519]  FCALL       select_helpers()
[L520]  FCALL       select_features()
[L521]  CALL, EXPR  valid_product()
[L938]              int retValue_acc ;
[L941]              retValue_acc = 1
[L942]              return (retValue_acc);
[L521]  RET, EXPR   valid_product()
[L521]              tmp = valid_product()
[L523]  COND TRUE   \read(tmp)
[L525]  FCALL       setup()
[L526]  CALL        runTest()
[L505]  CALL        test()
[L372]              int splverifierCounter ;
[L373]              int tmp ;
[L374]              int tmp___0 ;
[L375]              int tmp___1 ;
[L376]              int tmp___2 ;
[L379]              splverifierCounter = 0
[L381]  COND TRUE   1
[L383]  COND TRUE   splverifierCounter < 4
[L389]              tmp = __VERIFIER_nondet_int()
[L391]  COND TRUE   \read(tmp)
[L393]  CALL        waterRise()
[L65]   COND TRUE   waterLevel < 2
[L66]               waterLevel = waterLevel + 1
[L393]  RET         waterRise()
[L399]              tmp___0 = __VERIFIER_nondet_int()
[L401]  COND FALSE  !(\read(tmp___0))
[L409]              tmp___2 = __VERIFIER_nondet_int()
[L411]  COND FALSE  !(\read(tmp___2))
[L415]              tmp___1 = __VERIFIER_nondet_int()
[L417]  COND TRUE   \read(tmp___1)
[L419]  CALL        stopSystem()
[L358]  COND FALSE  !(\read(pumpRunning))
[L365]              systemActive = 0
[L419]  RET         stopSystem()
[L426]  CALL        timeShift()
[L184]  COND FALSE  !(\read(pumpRunning))
[L191]  COND FALSE  !(\read(systemActive))
[L199]  CALL        __utac_acc__Specification3_spec__1()
[L139]              int tmp ;
[L140]              int tmp___0 ;
[L141]              int tmp___1 ;
[L145]  CALL, EXPR  isMethaneLevelCritical()
[L86]               int retValue_acc ;
[L89]               retValue_acc = methaneLevelCritical
[L90]               return (retValue_acc);
[L145]  RET, EXPR   isMethaneLevelCritical()
[L145]              tmp = isMethaneLevelCritical()
[L147]  COND FALSE  !(\read(tmp))
[L151]  CALL, EXPR  getWaterLevel()
[L118]              int retValue_acc ;
[L121]              retValue_acc = waterLevel
[L122]              return (retValue_acc);
[L151]  RET, EXPR   getWaterLevel()
[L151]              tmp___0 = getWaterLevel()
[L153]  COND TRUE   tmp___0 == 2
[L155]  CALL, EXPR  isPumpRunning()
[L291]              int retValue_acc ;
[L294]              retValue_acc = pumpRunning
[L295]              return (retValue_acc);
[L155]  RET, EXPR   isPumpRunning()
[L155]              tmp___1 = isPumpRunning()
[L157]  COND FALSE  !(\read(tmp___1))
[L161]  CALL        __automaton_fail()
[L541]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 39 procedures, 627 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 20.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 9.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 539 SDtfs, 969 SDslu, 696 SDs, 0 SdLazy, 1853 SolverSat, 338 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=679occurred 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: 0.3s AutomataMinimizationTime, 2 MinimizatonAttempts, 243 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 10.0s InterpolantComputationTime, 497 NumberOfCodeBlocks, 497 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 318 ConstructedInterpolants, 0 QuantifiedInterpolants, 135902 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...