/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=LOWLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product24.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 21:21:25,034 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 21:21:25,039 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 21:21:25,084 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 21:21:25,085 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 21:21:25,092 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 21:21:25,095 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 21:21:25,099 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 21:21:25,101 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 21:21:25,105 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 21:21:25,106 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 21:21:25,107 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 21:21:25,108 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 21:21:25,111 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 21:21:25,114 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 21:21:25,115 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 21:21:25,117 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 21:21:25,118 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 21:21:25,119 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 21:21:25,128 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 21:21:25,130 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 21:21:25,131 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 21:21:25,133 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 21:21:25,134 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 21:21:25,146 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 21:21:25,146 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 21:21:25,146 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 21:21:25,148 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 21:21:25,149 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 21:21:25,150 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 21:21:25,157 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 21:21:25,158 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 21:21:25,159 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 21:21:25,164 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 21:21:25,166 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 21:21:25,166 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 21:21:25,167 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 21:21:25,167 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 21:21:25,167 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 21:21:25,168 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 21:21:25,169 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 21:21:25,171 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-24 21:21:25,212 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 21:21:25,213 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 21:21:25,215 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 21:21:25,215 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 21:21:25,216 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 21:21:25,216 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 21:21:25,216 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 21:21:25,216 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 21:21:25,217 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 21:21:25,217 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 21:21:25,218 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 21:21:25,218 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 21:21:25,218 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 21:21:25,219 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 21:21:25,219 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 21:21:25,219 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 21:21:25,219 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 21:21:25,220 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 21:21:25,220 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 21:21:25,220 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 21:21:25,220 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 21:21:25,220 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 21:21:25,221 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 21:21:25,221 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 21:21:25,221 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 21:21:25,221 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 21:21:25,221 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 21:21:25,222 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 21:21:25,222 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 21:21:25,222 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true;
[2020-09-24 21:21:25,666 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 21:21:25,684 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 21:21:25,688 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 21:21:25,690 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 21:21:25,691 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 21:21:25,692 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product24.cil.c
[2020-09-24 21:21:25,795 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/49b0946d6/8277dd211b7f431f95d7330b2e09c846/FLAGc60068858
[2020-09-24 21:21:26,421 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 21:21:26,422 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product24.cil.c
[2020-09-24 21:21:26,439 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/49b0946d6/8277dd211b7f431f95d7330b2e09c846/FLAGc60068858
[2020-09-24 21:21:26,711 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/49b0946d6/8277dd211b7f431f95d7330b2e09c846
[2020-09-24 21:21:26,724 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 21:21:26,729 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 21:21:26,730 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 21:21:26,731 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 21:21:26,737 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 21:21:26,738 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:21:26" (1/1) ...
[2020-09-24 21:21:26,744 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64d90d57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:26, skipping insertion in model container
[2020-09-24 21:21:26,744 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:21:26" (1/1) ...
[2020-09-24 21:21:26,753 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 21:21:26,811 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 21:21:27,300 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 21:21:27,316 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 21:21:27,403 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 21:21:27,453 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 21:21:27,455 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:27 WrapperNode
[2020-09-24 21:21:27,455 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 21:21:27,456 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 21:21:27,457 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 21:21:27,457 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 21:21:27,472 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:27" (1/1) ...
[2020-09-24 21:21:27,472 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:27" (1/1) ...
[2020-09-24 21:21:27,496 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:27" (1/1) ...
[2020-09-24 21:21:27,496 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:27" (1/1) ...
[2020-09-24 21:21:27,555 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:27" (1/1) ...
[2020-09-24 21:21:27,569 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:27" (1/1) ...
[2020-09-24 21:21:27,575 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:27" (1/1) ...
[2020-09-24 21:21:27,600 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 21:21:27,600 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 21:21:27,600 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 21:21:27,601 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 21:21:27,607 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:27" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 21:21:27,703 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 21:21:27,704 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 21:21:27,704 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 21:21:27,704 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 21:21:27,704 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 21:21:27,705 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 21:21:27,705 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor
[2020-09-24 21:21:27,705 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 21:21:27,705 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 21:21:27,705 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 21:21:27,706 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 21:21:27,706 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 21:21:27,706 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 21:21:27,706 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-24 21:21:27,706 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-24 21:21:27,707 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-24 21:21:27,707 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 21:21:27,707 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-24 21:21:27,707 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 21:21:27,708 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 21:21:27,708 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 21:21:27,708 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 21:21:27,708 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 21:21:27,708 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 21:21:27,708 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 21:21:27,709 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 21:21:27,709 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 21:21:27,709 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 21:21:27,709 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 21:21:27,709 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 21:21:27,710 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 21:21:27,710 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 21:21:27,710 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 21:21:27,710 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 21:21:27,710 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 21:21:27,711 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-24 21:21:27,711 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 21:21:27,711 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 21:21:27,711 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 21:21:27,711 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 21:21:27,712 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 21:21:27,712 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 21:21:27,712 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 21:21:27,712 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 21:21:27,713 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 21:21:27,713 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 21:21:27,713 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 21:21:27,713 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-24 21:21:27,713 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 21:21:27,714 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 21:21:27,714 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 21:21:27,714 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 21:21:27,714 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 21:21:27,714 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-24 21:21:27,715 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-24 21:21:27,715 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-24 21:21:27,715 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 21:21:27,715 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 21:21:27,715 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-24 21:21:27,715 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor
[2020-09-24 21:21:27,716 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 21:21:27,716 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 21:21:27,716 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 21:21:27,716 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 21:21:27,716 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 21:21:27,716 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 21:21:27,717 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 21:21:27,717 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 21:21:27,717 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 21:21:27,717 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 21:21:27,717 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 21:21:27,717 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 21:21:27,718 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 21:21:27,718 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 21:21:27,718 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 21:21:27,718 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 21:21:27,718 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 21:21:27,719 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 21:21:27,719 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 21:21:27,719 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 21:21:27,719 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 21:21:27,719 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 21:21:27,719 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 21:21:27,720 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 21:21:27,720 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 21:21:27,720 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 21:21:27,720 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 21:21:27,720 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 21:21:27,720 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 21:21:27,721 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 21:21:27,721 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 21:21:27,721 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 21:21:27,721 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 21:21:27,721 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 21:21:29,014 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 21:21:29,015 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 21:21:29,025 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:21:29 BoogieIcfgContainer
[2020-09-24 21:21:29,026 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 21:21:29,027 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 21:21:29,028 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 21:21:29,032 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 21:21:29,032 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:21:26" (1/3) ...
[2020-09-24 21:21:29,033 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e763f03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:21:29, skipping insertion in model container
[2020-09-24 21:21:29,034 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:27" (2/3) ...
[2020-09-24 21:21:29,035 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e763f03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:21:29, skipping insertion in model container
[2020-09-24 21:21:29,035 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:21:29" (3/3) ...
[2020-09-24 21:21:29,038 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product24.cil.c
[2020-09-24 21:21:29,050 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 21:21:29,065 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 21:21:29,087 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 21:21:29,125 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 21:21:29,125 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 21:21:29,126 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 21:21:29,126 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 21:21:29,126 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 21:21:29,126 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 21:21:29,126 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 21:21:29,126 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 21:21:29,155 INFO  L276                IsEmpty]: Start isEmpty. Operand 316 states.
[2020-09-24 21:21:29,175 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-24 21:21:29,175 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 21:21:29,177 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 21:21:29,177 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:21:29,185 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:21:29,185 INFO  L82        PathProgramCache]: Analyzing trace with hash -1912594641, now seen corresponding path program 1 times
[2020-09-24 21:21:29,197 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:21:29,197 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1035576081]
[2020-09-24 21:21:29,198 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:21:29,543 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:29,677 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:29,918 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:31,342 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:34,597 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:34,597 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-24 21:21:34,598 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 21:21:34,598 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5044
[2020-09-24 21:21:34,602 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:34,603 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-24 21:21:34,603 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-24 21:21:34,603 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 62
[2020-09-24 21:21:34,603 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-09-24 21:21:35,085 WARN  L193               SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 21:21:35,088 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:21:35,129 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:35,171 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:35,401 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:35,402 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 21:21:35,402 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:35,402 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 271
[2020-09-24 21:21:35,402 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:35,403 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:35,403 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:35,403 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-24 21:21:35,403 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:35,479 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 21:21:35,522 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:35,528 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:35,532 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:35,532 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:35,532 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:35,533 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 21:21:35,533 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:35,533 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:35,533 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:35,533 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:21:35,534 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:35,540 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 21:21:35,541 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:35,542 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:35,548 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:35,548 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:35,549 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:35,549 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 21:21:35,549 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:35,549 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:35,550 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:35,550 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:21:35,550 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:35,552 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 21:21:35,553 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:35,555 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:35,564 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:35,564 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:35,565 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:35,565 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-24 21:21:35,565 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:35,565 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:35,566 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:35,566 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:21:35,566 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:35,568 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 21:21:35,569 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:35,570 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:35,574 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:35,574 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:35,574 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:35,575 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 21:21:35,575 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:35,575 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:35,575 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:35,575 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:21:35,576 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:35,577 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 21:21:35,578 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:35,580 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:35,582 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:35,583 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:35,583 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:35,583 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 21:21:35,583 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:35,584 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:35,584 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 21:21:35,584 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:35,584 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:35,586 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 21:21:35,587 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:35,589 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:35,591 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:35,591 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:35,592 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:35,592 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 21:21:35,592 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:35,592 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:35,592 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 21:21:35,593 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:35,593 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:35,595 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-24 21:21:35,596 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:35,597 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:35,600 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:35,600 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:35,600 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:35,600 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 21:21:35,601 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:35,601 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:35,601 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 21:21:35,601 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:35,601 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:35,632 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 21:21:35,633 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1035576081]
[2020-09-24 21:21:35,635 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 21:21:35,636 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-24 21:21:35,637 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714282944]
[2020-09-24 21:21:35,644 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-24 21:21:35,644 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 21:21:35,662 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-24 21:21:35,664 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-24 21:21:35,667 INFO  L87              Difference]: Start difference. First operand 316 states. Second operand 4 states.
[2020-09-24 21:21:36,257 WARN  L193               SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 21:21:38,709 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 21:21:38,710 INFO  L93              Difference]: Finished difference Result 687 states and 837 transitions.
[2020-09-24 21:21:38,711 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-09-24 21:21:38,713 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 153
[2020-09-24 21:21:38,714 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 21:21:38,734 INFO  L225             Difference]: With dead ends: 687
[2020-09-24 21:21:38,735 INFO  L226             Difference]: Without dead ends: 482
[2020-09-24 21:21:38,742 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-24 21:21:38,765 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 482 states.
[2020-09-24 21:21:38,920 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 410.
[2020-09-24 21:21:38,922 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 410 states.
[2020-09-24 21:21:38,926 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 461 transitions.
[2020-09-24 21:21:38,929 INFO  L78                 Accepts]: Start accepts. Automaton has 410 states and 461 transitions. Word has length 153
[2020-09-24 21:21:38,930 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 21:21:38,930 INFO  L479      AbstractCegarLoop]: Abstraction has 410 states and 461 transitions.
[2020-09-24 21:21:38,930 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-24 21:21:38,930 INFO  L276                IsEmpty]: Start isEmpty. Operand 410 states and 461 transitions.
[2020-09-24 21:21:38,937 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 168
[2020-09-24 21:21:38,937 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 21:21:38,938 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 21:21:38,938 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 21:21:38,939 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:21:38,939 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:21:38,939 INFO  L82        PathProgramCache]: Analyzing trace with hash 1190482493, now seen corresponding path program 1 times
[2020-09-24 21:21:38,940 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:21:38,940 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1524635455]
[2020-09-24 21:21:38,940 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:21:39,037 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:39,098 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:39,341 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:42,278 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:42,279 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 206
[2020-09-24 21:21:42,279 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 21:21:42,279 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3237
[2020-09-24 21:21:42,280 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:42,280 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 21:21:42,280 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 81
[2020-09-24 21:21:42,280 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 109
[2020-09-24 21:21:42,280 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:42,618 WARN  L193               SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 21:21:42,619 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:21:42,652 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:42,692 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:42,899 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:42,899 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 21:21:42,899 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:42,899 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 243
[2020-09-24 21:21:42,900 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:42,900 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:42,900 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:42,900 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 77
[2020-09-24 21:21:42,901 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:42,956 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 21:21:42,957 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:42,960 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:42,964 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:42,965 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:42,965 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:42,966 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 21:21:42,966 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:42,967 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:42,967 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:42,968 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:21:42,968 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:42,970 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 21:21:42,971 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:42,973 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:42,976 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:42,977 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:42,977 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:42,977 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 21:21:42,978 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:42,978 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:42,978 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:42,979 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:21:42,980 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 21:21:42,982 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 21:21:42,983 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:42,985 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:42,995 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:42,996 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:42,996 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:42,997 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-24 21:21:42,997 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:42,998 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:42,998 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:42,998 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:21:42,999 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:43,002 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 21:21:43,003 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:43,004 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:43,009 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:43,010 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:43,010 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:43,011 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 21:21:43,011 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:43,012 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:43,012 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:43,013 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:21:43,013 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:43,040 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2020-09-24 21:21:43,042 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:43,045 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:43,050 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:43,051 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 22
[2020-09-24 21:21:43,051 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:43,052 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 21:21:43,052 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:43,053 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:43,053 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:43,053 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 18
[2020-09-24 21:21:43,054 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:43,057 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 21:21:43,059 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:43,063 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:43,066 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:43,066 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-24 21:21:43,067 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:43,067 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 21:21:43,068 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:43,068 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:43,069 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:43,069 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:43,070 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:43,072 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 21:21:43,073 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:43,074 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:43,077 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:43,077 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:43,078 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:43,078 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 21:21:43,079 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:43,079 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:43,080 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:43,080 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:43,083 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-24 21:21:43,085 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135
[2020-09-24 21:21:43,086 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:43,088 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:43,092 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:43,092 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:43,093 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:43,093 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 21:21:43,093 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:43,094 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:43,094 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:43,095 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:21:43,095 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:43,098 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145
[2020-09-24 21:21:43,099 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:43,103 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:43,111 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:43,111 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:43,112 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:43,112 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 21:21:43,113 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:43,114 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 21:21:43,114 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:43,115 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:21:43,115 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:43,230 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155
[2020-09-24 21:21:43,233 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:43,234 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:43,235 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:43,236 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:43,236 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:43,237 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 21:21:43,237 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:43,237 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:43,238 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 21:21:43,238 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:43,238 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:43,299 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 21:21:43,300 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1524635455]
[2020-09-24 21:21:43,301 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 21:21:43,301 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-09-24 21:21:43,302 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141713252]
[2020-09-24 21:21:43,306 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-24 21:21:43,306 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 21:21:43,307 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-24 21:21:43,308 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-09-24 21:21:43,308 INFO  L87              Difference]: Start difference. First operand 410 states and 461 transitions. Second operand 9 states.
[2020-09-24 21:21:43,815 WARN  L193               SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 21:21:46,097 WARN  L193               SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 21:21:46,440 WARN  L193               SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 21:21:46,846 WARN  L193               SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 21:21:47,190 WARN  L193               SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 21:21:47,500 WARN  L193               SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 21:21:47,820 WARN  L193               SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 21:21:48,119 WARN  L193               SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 21:21:49,705 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 21:21:49,706 INFO  L93              Difference]: Finished difference Result 1213 states and 1562 transitions.
[2020-09-24 21:21:49,706 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2020-09-24 21:21:49,707 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 167
[2020-09-24 21:21:49,708 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 21:21:49,718 INFO  L225             Difference]: With dead ends: 1213
[2020-09-24 21:21:49,718 INFO  L226             Difference]: Without dead ends: 866
[2020-09-24 21:21:49,725 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306
[2020-09-24 21:21:49,727 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 866 states.
[2020-09-24 21:21:49,855 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 687.
[2020-09-24 21:21:49,855 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 687 states.
[2020-09-24 21:21:49,860 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 793 transitions.
[2020-09-24 21:21:49,860 INFO  L78                 Accepts]: Start accepts. Automaton has 687 states and 793 transitions. Word has length 167
[2020-09-24 21:21:49,861 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 21:21:49,861 INFO  L479      AbstractCegarLoop]: Abstraction has 687 states and 793 transitions.
[2020-09-24 21:21:49,861 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-24 21:21:49,861 INFO  L276                IsEmpty]: Start isEmpty. Operand 687 states and 793 transitions.
[2020-09-24 21:21:49,866 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 178
[2020-09-24 21:21:49,867 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 21:21:49,867 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]
[2020-09-24 21:21:49,867 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 21:21:49,868 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:21:49,868 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:21:49,868 INFO  L82        PathProgramCache]: Analyzing trace with hash -557067660, now seen corresponding path program 1 times
[2020-09-24 21:21:49,868 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:21:49,869 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [678978658]
[2020-09-24 21:21:49,869 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:21:49,927 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-24 21:21:49,935 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-24 21:21:49,936 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 21:21:49,941 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 21:21:49,969 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 09:21:49 BoogieIcfgContainer
[2020-09-24 21:21:49,970 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 21:21:49,972 INFO  L168              Benchmark]: Toolchain (without parser) took 23246.20 ms. Allocated memory was 140.5 MB in the beginning and 529.0 MB in the end (delta: 388.5 MB). Free memory was 101.1 MB in the beginning and 226.7 MB in the end (delta: -125.6 MB). Peak memory consumption was 262.9 MB. Max. memory is 7.1 GB.
[2020-09-24 21:21:49,973 INFO  L168              Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.4 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB.
[2020-09-24 21:21:49,974 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 725.77 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 100.6 MB in the beginning and 171.2 MB in the end (delta: -70.6 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB.
[2020-09-24 21:21:49,975 INFO  L168              Benchmark]: Boogie Preprocessor took 143.43 ms. Allocated memory is still 203.4 MB. Free memory was 171.2 MB in the beginning and 166.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB.
[2020-09-24 21:21:49,976 INFO  L168              Benchmark]: RCFGBuilder took 1425.61 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 166.3 MB in the beginning and 172.2 MB in the end (delta: -5.9 MB). Peak memory consumption was 80.1 MB. Max. memory is 7.1 GB.
[2020-09-24 21:21:49,977 INFO  L168              Benchmark]: TraceAbstraction took 20942.35 ms. Allocated memory was 234.9 MB in the beginning and 529.0 MB in the end (delta: 294.1 MB). Free memory was 170.5 MB in the beginning and 226.7 MB in the end (delta: -56.1 MB). Peak memory consumption was 238.0 MB. Max. memory is 7.1 GB.
[2020-09-24 21:21:49,981 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.20 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.4 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 725.77 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 100.6 MB in the beginning and 171.2 MB in the end (delta: -70.6 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 143.43 ms. Allocated memory is still 203.4 MB. Free memory was 171.2 MB in the beginning and 166.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1425.61 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 166.3 MB in the beginning and 172.2 MB in the end (delta: -5.9 MB). Peak memory consumption was 80.1 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 20942.35 ms. Allocated memory was 234.9 MB in the beginning and 529.0 MB in the end (delta: 294.1 MB). Free memory was 170.5 MB in the beginning and 226.7 MB in the end (delta: -56.1 MB). Peak memory consumption was 238.0 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L60]               int pumpRunning  =    0;
[L61]               int systemActive  =    1;
[L369]              int cleanupTimeShifts  =    4;
[L637]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L834]              int waterLevel  =    1;
[L835]              int methaneLevelCritical  =    0;
[L445]              int retValue_acc ;
[L446]              int tmp ;
[L450]  FCALL       select_helpers()
[L451]  FCALL       select_features()
[L452]  CALL, EXPR  valid_product()
[L949]              int retValue_acc ;
[L952]              retValue_acc = 1
[L953]              return (retValue_acc);
[L452]  RET, EXPR   valid_product()
[L452]              tmp = valid_product()
[L454]  COND TRUE   \read(tmp)
[L456]  FCALL       setup()
[L457]  CALL        runTest()
[L436]  CALL        test()
[L266]              int splverifierCounter ;
[L267]              int tmp ;
[L268]              int tmp___0 ;
[L269]              int tmp___1 ;
[L270]              int tmp___2 ;
[L273]              splverifierCounter = 0
[L275]  COND TRUE   1
[L277]  COND TRUE   splverifierCounter < 4
[L283]              tmp = __VERIFIER_nondet_int()
[L285]  COND TRUE   \read(tmp)
[L287]  CALL        waterRise()
[L852]  COND TRUE   waterLevel < 2
[L853]              waterLevel = waterLevel + 1
[L287]  RET         waterRise()
[L293]              tmp___0 = __VERIFIER_nondet_int()
[L295]  COND FALSE  !(\read(tmp___0))
[L303]              tmp___2 = __VERIFIER_nondet_int()
[L305]  COND FALSE  !(\read(tmp___2))
[L311]              tmp___1 = __VERIFIER_nondet_int()
[L313]  COND TRUE   \read(tmp___1)
[L315]  CALL        stopSystem()
[L242]  COND FALSE  !(\read(pumpRunning))
[L249]              systemActive = 0
[L315]  RET         stopSystem()
[L322]  CALL        timeShift()
[L68]   COND FALSE  !(\read(pumpRunning))
[L75]   COND FALSE  !(\read(systemActive))
[L83]   CALL        __utac_acc__Specification3_spec__1()
[L336]              int tmp ;
[L337]              int tmp___0 ;
[L338]              int tmp___1 ;
[L342]  CALL, EXPR  isMethaneLevelCritical()
[L873]              int retValue_acc ;
[L876]              retValue_acc = methaneLevelCritical
[L877]              return (retValue_acc);
[L342]  RET, EXPR   isMethaneLevelCritical()
[L342]              tmp = isMethaneLevelCritical()
[L344]  COND FALSE  !(\read(tmp))
[L348]  CALL, EXPR  getWaterLevel()
[L905]              int retValue_acc ;
[L908]              retValue_acc = waterLevel
[L909]              return (retValue_acc);
[L348]  RET, EXPR   getWaterLevel()
[L348]              tmp___0 = getWaterLevel()
[L350]  COND TRUE   tmp___0 == 2
[L352]  CALL, EXPR  isPumpRunning()
[L175]              int retValue_acc ;
[L178]              retValue_acc = pumpRunning
[L179]              return (retValue_acc);
[L352]  RET, EXPR   isPumpRunning()
[L352]              tmp___1 = isPumpRunning()
[L354]  COND FALSE  !(\read(tmp___1))
[L358]  CALL        __automaton_fail()
[L44]               __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 40 procedures, 631 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 20.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 9.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 551 SDtfs, 979 SDslu, 715 SDs, 0 SdLazy, 1902 SolverSat, 358 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=687occurred 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, 251 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 10.2s InterpolantComputationTime, 497 NumberOfCodeBlocks, 497 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 318 ConstructedInterpolants, 0 QuantifiedInterpolants, 135182 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...