/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=WIDEST --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_product21.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 02:58:50,634 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 02:58:50,638 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 02:58:50,665 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 02:58:50,665 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 02:58:50,667 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 02:58:50,668 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 02:58:50,670 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 02:58:50,672 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 02:58:50,674 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 02:58:50,675 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 02:58:50,676 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 02:58:50,676 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 02:58:50,677 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 02:58:50,679 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 02:58:50,680 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 02:58:50,681 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 02:58:50,682 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 02:58:50,684 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 02:58:50,686 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 02:58:50,688 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 02:58:50,689 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 02:58:50,690 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 02:58:50,692 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 02:58:50,696 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 02:58:50,696 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 02:58:50,696 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 02:58:50,699 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 02:58:50,699 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 02:58:50,703 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 02:58:50,703 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 02:58:50,704 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 02:58:50,706 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 02:58:50,707 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 02:58:50,710 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 02:58:50,710 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 02:58:50,711 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 02:58:50,711 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 02:58:50,711 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 02:58:50,712 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 02:58:50,723 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 02:58:50,724 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 02:58:50,776 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 02:58:50,776 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 02:58:50,777 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 02:58:50,778 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 02:58:50,778 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 02:58:50,779 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 02:58:50,779 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 02:58:50,779 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 02:58:50,780 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 02:58:50,780 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 02:58:50,781 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 02:58:50,781 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 02:58:50,781 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 02:58:50,782 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 02:58:50,783 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 02:58:50,783 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 02:58:50,783 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 02:58:50,783 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 02:58:50,783 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 02:58:50,784 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 02:58:50,784 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 02:58:50,784 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 02:58:50,784 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 02:58:50,784 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 02:58:50,785 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 02:58:50,785 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 02:58:50,785 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 02:58:50,785 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 02:58:50,785 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 02:58:50,786 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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;log-additional-information=true;
[2020-09-25 02:58:51,265 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 02:58:51,284 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 02:58:51,289 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 02:58:51,292 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 02:58:51,292 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 02:58:51,293 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product21.cil.c
[2020-09-25 02:58:51,372 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/13670f2d6/2cd3f6810fe542de92451cfcab63b922/FLAG3adf16ef3
[2020-09-25 02:58:52,015 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 02:58:52,016 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product21.cil.c
[2020-09-25 02:58:52,029 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/13670f2d6/2cd3f6810fe542de92451cfcab63b922/FLAG3adf16ef3
[2020-09-25 02:58:52,260 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/13670f2d6/2cd3f6810fe542de92451cfcab63b922
[2020-09-25 02:58:52,276 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 02:58:52,286 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 02:58:52,289 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 02:58:52,289 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 02:58:52,294 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 02:58:52,295 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:58:52" (1/1) ...
[2020-09-25 02:58:52,300 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:52, skipping insertion in model container
[2020-09-25 02:58:52,300 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:58:52" (1/1) ...
[2020-09-25 02:58:52,311 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 02:58:52,381 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 02:58:52,854 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 02:58:52,875 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 02:58:52,993 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 02:58:53,031 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 02:58:53,031 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:53 WrapperNode
[2020-09-25 02:58:53,032 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 02:58:53,033 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 02:58:53,033 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 02:58:53,033 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 02:58:53,051 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:53" (1/1) ...
[2020-09-25 02:58:53,052 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:53" (1/1) ...
[2020-09-25 02:58:53,074 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:53" (1/1) ...
[2020-09-25 02:58:53,075 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:53" (1/1) ...
[2020-09-25 02:58:53,108 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:53" (1/1) ...
[2020-09-25 02:58:53,119 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:53" (1/1) ...
[2020-09-25 02:58:53,125 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:53" (1/1) ...
[2020-09-25 02:58:53,134 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 02:58:53,134 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 02:58:53,134 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 02:58:53,135 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 02:58:53,136 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:53" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 02:58:53,217 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 02:58:53,217 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 02:58:53,217 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 02:58:53,217 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 02:58:53,218 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 02:58:53,218 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 02:58:53,218 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 02:58:53,218 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 02:58:53,219 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 02:58:53,219 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 02:58:53,219 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 02:58:53,219 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor
[2020-09-25 02:58:53,219 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 02:58:53,219 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 02:58:53,220 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 02:58:53,220 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 02:58:53,220 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 02:58:53,220 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 02:58:53,221 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-25 02:58:53,221 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 02:58:53,221 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 02:58:53,221 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 02:58:53,221 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 02:58:53,222 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 02:58:53,222 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 02:58:53,222 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 02:58:53,222 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 02:58:53,222 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-25 02:58:53,223 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 02:58:53,223 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 02:58:53,223 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 02:58:53,223 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 02:58:53,223 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 02:58:53,223 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 02:58:53,223 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 02:58:53,224 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 02:58:53,224 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 02:58:53,224 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 02:58:53,224 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 02:58:53,224 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 02:58:53,225 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 02:58:53,225 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 02:58:53,225 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 02:58:53,225 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 02:58:53,225 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 02:58:53,225 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 02:58:53,226 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 02:58:53,226 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 02:58:53,226 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 02:58:53,226 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 02:58:53,226 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 02:58:53,226 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 02:58:53,227 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 02:58:53,227 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 02:58:53,227 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 02:58:53,227 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 02:58:53,227 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 02:58:53,227 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 02:58:53,228 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 02:58:53,228 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 02:58:53,228 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 02:58:53,228 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-25 02:58:53,228 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 02:58:53,228 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 02:58:53,229 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 02:58:53,229 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 02:58:53,229 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 02:58:53,229 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 02:58:53,229 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 02:58:53,229 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 02:58:53,230 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-25 02:58:53,230 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor
[2020-09-25 02:58:53,230 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 02:58:53,230 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 02:58:53,230 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 02:58:53,230 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 02:58:53,231 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 02:58:53,231 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 02:58:53,231 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 02:58:53,231 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 02:58:53,231 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 02:58:53,231 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 02:58:53,232 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 02:58:53,232 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 02:58:53,232 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 02:58:53,232 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 02:58:53,232 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 02:58:53,232 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 02:58:53,233 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 02:58:53,233 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 02:58:54,462 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 02:58:54,463 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 02:58:54,470 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:58:54 BoogieIcfgContainer
[2020-09-25 02:58:54,470 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 02:58:54,471 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 02:58:54,472 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 02:58:54,475 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 02:58:54,476 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:58:52" (1/3) ...
[2020-09-25 02:58:54,476 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@175a58c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:58:54, skipping insertion in model container
[2020-09-25 02:58:54,477 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:53" (2/3) ...
[2020-09-25 02:58:54,477 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@175a58c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:58:54, skipping insertion in model container
[2020-09-25 02:58:54,477 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:58:54" (3/3) ...
[2020-09-25 02:58:54,480 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product21.cil.c
[2020-09-25 02:58:54,493 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 02:58:54,504 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 02:58:54,528 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 02:58:54,561 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 02:58:54,561 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 02:58:54,561 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 02:58:54,561 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 02:58:54,561 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 02:58:54,562 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 02:58:54,562 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 02:58:54,562 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 02:58:54,591 INFO  L276                IsEmpty]: Start isEmpty. Operand 306 states.
[2020-09-25 02:58:54,610 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 02:58:54,611 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 02:58:54,612 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 02:58:54,613 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 02:58:54,620 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 02:58:54,621 INFO  L82        PathProgramCache]: Analyzing trace with hash 1461403982, now seen corresponding path program 1 times
[2020-09-25 02:58:54,631 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 02:58:54,632 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2068832587]
[2020-09-25 02:58:54,632 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 02:58:55,012 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:55,130 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:55,340 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:55,943 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:59,224 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:59,224 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 02:58:59,225 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 02:58:59,225 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4202
[2020-09-25 02:58:59,228 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:59,228 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 02:58:59,229 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 80
[2020-09-25 02:58:59,229 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 90
[2020-09-25 02:58:59,229 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-25 02:58:59,686 WARN  L193               SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 02:58:59,688 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 02:58:59,727 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:59,767 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:59,989 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:59,990 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 02:58:59,990 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:59,990 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 261
[2020-09-25 02:58:59,990 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:59,991 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:58:59,991 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:59,991 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 76
[2020-09-25 02:58:59,991 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:59:00,058 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 02:59:00,059 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:00,060 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:00,064 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:00,064 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:59:00,065 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:00,065 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 02:59:00,065 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:00,065 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:59:00,066 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:59:00,066 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 02:59:00,066 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:59:00,067 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 02:59:00,068 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:00,070 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:00,073 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:00,073 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:59:00,073 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:00,074 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 02:59:00,074 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:00,074 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:59:00,074 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:59:00,075 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 02:59:00,075 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:59:00,076 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 02:59:00,077 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:00,079 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:00,088 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:00,088 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:59:00,088 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:00,089 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-25 02:59:00,089 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:00,089 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:59:00,089 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:59:00,090 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 02:59:00,090 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:59:00,092 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 02:59:00,093 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:00,094 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:00,097 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:00,098 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:59:00,098 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:00,098 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 02:59:00,099 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:00,099 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:59:00,099 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:59:00,099 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 02:59:00,100 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:59:00,101 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 02:59:00,103 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:00,104 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:00,108 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:00,108 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:59:00,108 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:00,109 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 02:59:00,109 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:00,109 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:59:00,109 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:59:00,110 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 02:59:00,110 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:59:00,112 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 02:59:00,113 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:00,115 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:00,124 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:00,125 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:59:00,125 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:00,125 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 02:59:00,125 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:00,126 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 02:59:00,126 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:59:00,126 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 02:59:00,126 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:59:00,164 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 02:59:00,165 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:00,166 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:00,168 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:00,169 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:59:00,169 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:00,169 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 02:59:00,169 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:00,170 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:59:00,170 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 02:59:00,170 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:59:00,170 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:59:00,206 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 02:59:00,207 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2068832587]
[2020-09-25 02:59:00,209 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 02:59:00,210 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-25 02:59:00,211 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151460689]
[2020-09-25 02:59:00,218 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 02:59:00,218 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 02:59:00,236 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 02:59:00,237 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-25 02:59:00,240 INFO  L87              Difference]: Start difference. First operand 306 states. Second operand 8 states.
[2020-09-25 02:59:00,883 WARN  L193               SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 02:59:02,329 WARN  L193               SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-25 02:59:03,107 WARN  L193               SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188
[2020-09-25 02:59:03,715 WARN  L193               SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190
[2020-09-25 02:59:04,143 WARN  L193               SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 02:59:04,560 WARN  L193               SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 02:59:04,900 WARN  L193               SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 02:59:05,278 WARN  L193               SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 02:59:06,681 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 02:59:06,682 INFO  L93              Difference]: Finished difference Result 638 states and 784 transitions.
[2020-09-25 02:59:06,684 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2020-09-25 02:59:06,686 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-25 02:59:06,687 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 02:59:06,709 INFO  L225             Difference]: With dead ends: 638
[2020-09-25 02:59:06,709 INFO  L226             Difference]: Without dead ends: 443
[2020-09-25 02:59:06,716 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272
[2020-09-25 02:59:06,743 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 443 states.
[2020-09-25 02:59:06,872 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 398.
[2020-09-25 02:59:06,874 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 398 states.
[2020-09-25 02:59:06,878 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 451 transitions.
[2020-09-25 02:59:06,880 INFO  L78                 Accepts]: Start accepts. Automaton has 398 states and 451 transitions. Word has length 153
[2020-09-25 02:59:06,881 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 02:59:06,881 INFO  L479      AbstractCegarLoop]: Abstraction has 398 states and 451 transitions.
[2020-09-25 02:59:06,881 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 02:59:06,882 INFO  L276                IsEmpty]: Start isEmpty. Operand 398 states and 451 transitions.
[2020-09-25 02:59:06,888 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 169
[2020-09-25 02:59:06,889 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 02:59:06,889 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]
[2020-09-25 02:59:06,890 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 02:59:06,890 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 02:59:06,890 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 02:59:06,891 INFO  L82        PathProgramCache]: Analyzing trace with hash -1510531889, now seen corresponding path program 1 times
[2020-09-25 02:59:06,891 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 02:59:06,891 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [801737901]
[2020-09-25 02:59:06,892 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 02:59:06,955 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:07,043 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:07,328 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:07,328 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 201
[2020-09-25 02:59:07,328 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:07,329 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 369
[2020-09-25 02:59:07,329 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:07,329 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:59:07,329 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 79
[2020-09-25 02:59:07,330 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 76
[2020-09-25 02:59:07,330 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:59:07,711 WARN  L193               SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 02:59:07,712 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 02:59:07,753 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:07,798 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:08,044 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:08,045 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 02:59:08,045 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:08,046 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 290
[2020-09-25 02:59:08,046 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:08,046 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:59:08,047 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:59:08,047 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-25 02:59:08,048 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:59:08,102 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 02:59:08,103 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:08,105 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:08,109 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:08,109 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:59:08,110 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:08,110 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 02:59:08,110 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:08,110 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:59:08,111 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:59:08,111 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 02:59:08,111 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:59:08,113 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 02:59:08,114 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:08,115 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:08,118 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:08,119 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:59:08,119 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:08,119 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 02:59:08,119 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:08,119 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:59:08,120 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:59:08,120 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 02:59:08,120 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:59:08,122 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 02:59:08,123 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:08,125 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:08,134 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:08,134 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:59:08,134 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:08,134 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 02:59:08,135 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:08,135 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:59:08,135 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:59:08,135 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 02:59:08,135 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:59:08,137 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 02:59:08,138 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:08,140 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:08,144 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:08,145 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:59:08,145 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:08,145 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 02:59:08,145 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:08,146 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:59:08,146 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:59:08,146 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 02:59:08,146 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:59:08,157 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116
[2020-09-25 02:59:08,159 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:08,161 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:08,168 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:08,169 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 02:59:08,169 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:08,169 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-25 02:59:08,170 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:08,170 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:59:08,170 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:59:08,171 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 02:59:08,171 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:59:08,173 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136
[2020-09-25 02:59:08,175 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:08,176 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:08,178 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:08,178 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:59:08,179 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:08,179 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 02:59:08,180 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:08,180 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:59:08,180 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 02:59:08,181 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:59:08,181 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:59:08,183 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146
[2020-09-25 02:59:08,183 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:08,185 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:08,187 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:08,187 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:59:08,188 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:08,188 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 02:59:08,189 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:08,189 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:59:08,189 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 02:59:08,189 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:59:08,190 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:59:08,191 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156
[2020-09-25 02:59:08,192 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:08,194 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:08,196 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:08,196 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:59:08,196 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:08,197 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 02:59:08,197 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:08,197 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:59:08,198 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 02:59:08,198 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:59:08,198 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:59:08,264 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 02:59:08,265 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [801737901]
[2020-09-25 02:59:08,265 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 02:59:08,265 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 02:59:08,266 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316890923]
[2020-09-25 02:59:08,268 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 02:59:08,269 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 02:59:08,269 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 02:59:08,270 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-25 02:59:08,270 INFO  L87              Difference]: Start difference. First operand 398 states and 451 transitions. Second operand 5 states.
[2020-09-25 02:59:08,881 WARN  L193               SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 02:59:09,995 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 02:59:09,996 INFO  L93              Difference]: Finished difference Result 738 states and 890 transitions.
[2020-09-25 02:59:09,998 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-25 02:59:09,998 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 168
[2020-09-25 02:59:09,999 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 02:59:10,012 INFO  L225             Difference]: With dead ends: 738
[2020-09-25 02:59:10,012 INFO  L226             Difference]: Without dead ends: 450
[2020-09-25 02:59:10,018 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-09-25 02:59:10,022 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 450 states.
[2020-09-25 02:59:10,103 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 394.
[2020-09-25 02:59:10,103 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 394 states.
[2020-09-25 02:59:10,106 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 442 transitions.
[2020-09-25 02:59:10,107 INFO  L78                 Accepts]: Start accepts. Automaton has 394 states and 442 transitions. Word has length 168
[2020-09-25 02:59:10,108 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 02:59:10,108 INFO  L479      AbstractCegarLoop]: Abstraction has 394 states and 442 transitions.
[2020-09-25 02:59:10,108 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 02:59:10,108 INFO  L276                IsEmpty]: Start isEmpty. Operand 394 states and 442 transitions.
[2020-09-25 02:59:10,112 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 182
[2020-09-25 02:59:10,112 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 02:59:10,113 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, 1, 1, 1, 1]
[2020-09-25 02:59:10,113 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 02:59:10,113 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 02:59:10,113 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 02:59:10,114 INFO  L82        PathProgramCache]: Analyzing trace with hash -342521873, now seen corresponding path program 1 times
[2020-09-25 02:59:10,114 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 02:59:10,114 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [953796944]
[2020-09-25 02:59:10,114 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 02:59:10,176 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 02:59:10,184 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 02:59:10,185 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 02:59:10,190 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 02:59:10,220 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:59:10 BoogieIcfgContainer
[2020-09-25 02:59:10,220 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 02:59:10,222 INFO  L168              Benchmark]: Toolchain (without parser) took 17943.49 ms. Allocated memory was 140.5 MB in the beginning and 484.4 MB in the end (delta: 343.9 MB). Free memory was 102.6 MB in the beginning and 133.8 MB in the end (delta: -31.2 MB). Peak memory consumption was 312.8 MB. Max. memory is 7.1 GB.
[2020-09-25 02:59:10,223 INFO  L168              Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 02:59:10,224 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 743.73 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 102.0 MB in the beginning and 172.9 MB in the end (delta: -70.9 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB.
[2020-09-25 02:59:10,225 INFO  L168              Benchmark]: Boogie Preprocessor took 101.19 ms. Allocated memory is still 204.5 MB. Free memory was 172.9 MB in the beginning and 168.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB.
[2020-09-25 02:59:10,226 INFO  L168              Benchmark]: RCFGBuilder took 1335.88 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 168.9 MB in the beginning and 177.6 MB in the end (delta: -8.7 MB). Peak memory consumption was 82.8 MB. Max. memory is 7.1 GB.
[2020-09-25 02:59:10,227 INFO  L168              Benchmark]: TraceAbstraction took 15748.69 ms. Allocated memory was 237.0 MB in the beginning and 484.4 MB in the end (delta: 247.5 MB). Free memory was 176.2 MB in the beginning and 133.8 MB in the end (delta: 42.4 MB). Peak memory consumption was 289.9 MB. Max. memory is 7.1 GB.
[2020-09-25 02:59:10,231 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 743.73 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 102.0 MB in the beginning and 172.9 MB in the end (delta: -70.9 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 101.19 ms. Allocated memory is still 204.5 MB. Free memory was 172.9 MB in the beginning and 168.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1335.88 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 168.9 MB in the beginning and 177.6 MB in the end (delta: -8.7 MB). Peak memory consumption was 82.8 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 15748.69 ms. Allocated memory was 237.0 MB in the beginning and 484.4 MB in the end (delta: 247.5 MB). Free memory was 176.2 MB in the beginning and 133.8 MB in the end (delta: 42.4 MB). Peak memory consumption was 289.9 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 598]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L209]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L415]              int pumpRunning  =    0;
[L416]              int systemActive  =    1;
[L672]              int waterLevel  =    1;
[L673]              int methaneLevelCritical  =    0;
[L761]              int cleanupTimeShifts  =    4;
[L837]              int retValue_acc ;
[L838]              int tmp ;
[L842]  FCALL       select_helpers()
[L843]  FCALL       select_features()
[L844]  CALL, EXPR  valid_product()
[L920]              int retValue_acc ;
[L923]              retValue_acc = 1
[L924]              return (retValue_acc);
[L844]  RET, EXPR   valid_product()
[L844]              tmp = valid_product()
[L846]  COND TRUE   \read(tmp)
[L848]  FCALL       setup()
[L849]  CALL        runTest()
[L828]  CALL        test()
[L607]              int splverifierCounter ;
[L608]              int tmp ;
[L609]              int tmp___0 ;
[L610]              int tmp___1 ;
[L611]              int tmp___2 ;
[L614]              splverifierCounter = 0
[L616]  COND TRUE   1
[L618]  COND TRUE   splverifierCounter < 4
[L624]              tmp = __VERIFIER_nondet_int()
[L626]  COND TRUE   \read(tmp)
[L628]  CALL        waterRise()
[L690]  COND TRUE   waterLevel < 2
[L691]              waterLevel = waterLevel + 1
[L628]  RET         waterRise()
[L634]              tmp___0 = __VERIFIER_nondet_int()
[L636]  COND FALSE  !(\read(tmp___0))
[L644]              tmp___2 = __VERIFIER_nondet_int()
[L646]  COND TRUE   \read(tmp___2)
[L659]  CALL        timeShift()
[L423]  COND FALSE  !(\read(pumpRunning))
[L430]  COND TRUE   \read(systemActive)
[L432]  CALL        processEnvironment()
[L478]              int tmp ;
[L481]  COND FALSE  !(\read(pumpRunning))
[L496]  CALL        processEnvironment__wrappee__lowWaterSensor()
[L452]              int tmp ;
[L455]  COND FALSE  !(\read(pumpRunning))
[L470]  FCALL       processEnvironment__wrappee__base()
[L496]  RET         processEnvironment__wrappee__lowWaterSensor()
[L432]  RET         processEnvironment()
[L438]  CALL        __utac_acc__Specification3_spec__1()
[L861]              int tmp ;
[L862]              int tmp___0 ;
[L863]              int tmp___1 ;
[L867]  CALL, EXPR  isMethaneLevelCritical()
[L711]              int retValue_acc ;
[L714]              retValue_acc = methaneLevelCritical
[L715]              return (retValue_acc);
[L867]  RET, EXPR   isMethaneLevelCritical()
[L867]              tmp = isMethaneLevelCritical()
[L869]  COND FALSE  !(\read(tmp))
[L873]  CALL, EXPR  getWaterLevel()
[L743]              int retValue_acc ;
[L746]              retValue_acc = waterLevel
[L747]              return (retValue_acc);
[L873]  RET, EXPR   getWaterLevel()
[L873]              tmp___0 = getWaterLevel()
[L875]  COND TRUE   tmp___0 == 2
[L877]  CALL, EXPR  isPumpRunning()
[L530]              int retValue_acc ;
[L533]              retValue_acc = pumpRunning
[L534]              return (retValue_acc);
[L877]  RET, EXPR   isPumpRunning()
[L877]              tmp___1 = isPumpRunning()
[L879]  COND FALSE  !(\read(tmp___1))
[L883]  CALL        __automaton_fail()
[L598]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 38 procedures, 621 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 8.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 495 SDtfs, 805 SDslu, 691 SDs, 0 SdLazy, 1527 SolverSat, 270 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=398occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 101 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 6.4s InterpolantComputationTime, 502 NumberOfCodeBlocks, 502 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 319 ConstructedInterpolants, 0 QuantifiedInterpolants, 140300 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...