/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product25.cil.c


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


This is Ultimate 0.2.0-0f64333
[2020-10-29 11:37:50,013 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-10-29 11:37:50,016 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-10-29 11:37:50,072 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-10-29 11:37:50,073 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-10-29 11:37:50,080 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-10-29 11:37:50,083 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-10-29 11:37:50,088 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-10-29 11:37:50,091 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-10-29 11:37:50,098 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-10-29 11:37:50,100 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-10-29 11:37:50,102 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-10-29 11:37:50,102 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-10-29 11:37:50,106 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-10-29 11:37:50,108 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-10-29 11:37:50,111 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-10-29 11:37:50,112 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-10-29 11:37:50,115 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-10-29 11:37:50,119 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-10-29 11:37:50,122 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-10-29 11:37:50,126 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-10-29 11:37:50,129 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-10-29 11:37:50,131 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-10-29 11:37:50,134 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-10-29 11:37:50,150 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-10-29 11:37:50,154 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-10-29 11:37:50,154 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-10-29 11:37:50,156 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-10-29 11:37:50,157 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-10-29 11:37:50,158 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-10-29 11:37:50,158 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-10-29 11:37:50,159 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-10-29 11:37:50,162 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-10-29 11:37:50,162 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-10-29 11:37:50,164 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-10-29 11:37:50,164 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-10-29 11:37:50,165 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-10-29 11:37:50,166 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-10-29 11:37:50,166 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-10-29 11:37:50,167 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-10-29 11:37:50,168 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-10-29 11:37:50,176 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
[2020-10-29 11:37:50,228 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-10-29 11:37:50,228 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-10-29 11:37:50,232 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-10-29 11:37:50,233 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-10-29 11:37:50,233 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-10-29 11:37:50,233 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-10-29 11:37:50,233 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-10-29 11:37:50,234 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-10-29 11:37:50,234 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-10-29 11:37:50,234 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-10-29 11:37:50,235 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-10-29 11:37:50,236 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-10-29 11:37:50,236 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-10-29 11:37:50,236 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-10-29 11:37:50,236 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-10-29 11:37:50,236 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-10-29 11:37:50,237 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-10-29 11:37:50,237 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-10-29 11:37:50,237 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-10-29 11:37:50,237 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-10-29 11:37:50,238 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-10-29 11:37:50,238 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-29 11:37:50,238 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-10-29 11:37:50,238 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-10-29 11:37:50,239 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-10-29 11:37:50,239 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-10-29 11:37:50,239 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-10-29 11:37:50,239 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-10-29 11:37:50,239 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-10-29 11:37:50,240 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true;
[2020-10-29 11:37:50,715 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-10-29 11:37:50,740 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-10-29 11:37:50,743 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-10-29 11:37:50,745 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-10-29 11:37:50,746 INFO  L275        PluginConnector]: CDTParser initialized
[2020-10-29 11:37:50,747 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product25.cil.c
[2020-10-29 11:37:50,846 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ffa04afe5/092d579580b84326a5b1e361bd68bead/FLAG3784e11de
[2020-10-29 11:37:51,591 INFO  L306              CDTParser]: Found 1 translation units.
[2020-10-29 11:37:51,592 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product25.cil.c
[2020-10-29 11:37:51,621 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ffa04afe5/092d579580b84326a5b1e361bd68bead/FLAG3784e11de
[2020-10-29 11:37:51,847 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ffa04afe5/092d579580b84326a5b1e361bd68bead
[2020-10-29 11:37:51,849 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-10-29 11:37:51,856 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-10-29 11:37:51,858 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-10-29 11:37:51,858 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-10-29 11:37:51,863 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-10-29 11:37:51,864 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 11:37:51" (1/1) ...
[2020-10-29 11:37:51,869 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d6d1282 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:51, skipping insertion in model container
[2020-10-29 11:37:51,869 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 11:37:51" (1/1) ...
[2020-10-29 11:37:51,878 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-10-29 11:37:51,947 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-10-29 11:37:52,316 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-29 11:37:52,328 INFO  L203         MainTranslator]: Completed pre-run
[2020-10-29 11:37:52,442 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-29 11:37:52,483 INFO  L208         MainTranslator]: Completed translation
[2020-10-29 11:37:52,484 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:52 WrapperNode
[2020-10-29 11:37:52,484 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-10-29 11:37:52,485 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-10-29 11:37:52,485 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-10-29 11:37:52,486 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-10-29 11:37:52,504 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:52" (1/1) ...
[2020-10-29 11:37:52,504 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:52" (1/1) ...
[2020-10-29 11:37:52,523 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:52" (1/1) ...
[2020-10-29 11:37:52,524 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:52" (1/1) ...
[2020-10-29 11:37:52,572 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:52" (1/1) ...
[2020-10-29 11:37:52,587 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:52" (1/1) ...
[2020-10-29 11:37:52,598 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:52" (1/1) ...
[2020-10-29 11:37:52,613 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-10-29 11:37:52,614 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-10-29 11:37:52,614 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-10-29 11:37:52,614 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-10-29 11:37:52,618 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:52" (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
[2020-10-29 11:37:52,708 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-10-29 11:37:52,708 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-10-29 11:37:52,709 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-10-29 11:37:52,709 INFO  L138     BoogieDeclarations]: Found implementation of procedure reach_error
[2020-10-29 11:37:52,709 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-10-29 11:37:52,709 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-10-29 11:37:52,709 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-10-29 11:37:52,710 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-10-29 11:37:52,710 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-10-29 11:37:52,710 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-10-29 11:37:52,710 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-10-29 11:37:52,710 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-10-29 11:37:52,711 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-10-29 11:37:52,711 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-10-29 11:37:52,711 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-10-29 11:37:52,711 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-10-29 11:37:52,712 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-10-29 11:37:52,712 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-10-29 11:37:52,712 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-10-29 11:37:52,712 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-10-29 11:37:52,712 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-10-29 11:37:52,713 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-10-29 11:37:52,713 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-10-29 11:37:52,713 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-10-29 11:37:52,713 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-10-29 11:37:52,714 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-10-29 11:37:52,714 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-10-29 11:37:52,714 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-10-29 11:37:52,714 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-10-29 11:37:52,714 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-10-29 11:37:52,715 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-10-29 11:37:52,715 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor
[2020-10-29 11:37:52,715 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-10-29 11:37:52,715 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-10-29 11:37:52,716 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-10-29 11:37:52,716 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-10-29 11:37:52,716 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-10-29 11:37:52,716 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-10-29 11:37:52,716 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-10-29 11:37:52,717 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2020-10-29 11:37:52,717 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-10-29 11:37:52,717 INFO  L130     BoogieDeclarations]: Found specification of procedure reach_error
[2020-10-29 11:37:52,717 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-10-29 11:37:52,718 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-10-29 11:37:52,718 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-10-29 11:37:52,718 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-10-29 11:37:52,718 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-10-29 11:37:52,718 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-10-29 11:37:52,719 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-10-29 11:37:52,719 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-10-29 11:37:52,719 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-10-29 11:37:52,719 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-10-29 11:37:52,719 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-10-29 11:37:52,720 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-10-29 11:37:52,720 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-10-29 11:37:52,720 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-10-29 11:37:52,720 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-10-29 11:37:52,752 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-10-29 11:37:52,752 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-10-29 11:37:52,752 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-10-29 11:37:52,753 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-10-29 11:37:52,753 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-10-29 11:37:52,753 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-10-29 11:37:52,753 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-10-29 11:37:52,753 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-10-29 11:37:52,753 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-10-29 11:37:52,754 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-10-29 11:37:52,754 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-10-29 11:37:52,755 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-10-29 11:37:52,755 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-10-29 11:37:52,755 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-10-29 11:37:52,755 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-10-29 11:37:52,755 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-10-29 11:37:52,755 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-10-29 11:37:52,755 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-10-29 11:37:52,756 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-10-29 11:37:52,756 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-10-29 11:37:52,756 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-10-29 11:37:52,756 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-10-29 11:37:52,756 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-10-29 11:37:52,756 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-10-29 11:37:52,757 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-10-29 11:37:52,757 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-10-29 11:37:52,757 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-10-29 11:37:52,757 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-10-29 11:37:52,757 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-10-29 11:37:52,757 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-10-29 11:37:52,757 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor
[2020-10-29 11:37:52,758 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-10-29 11:37:52,758 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-10-29 11:37:52,758 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-10-29 11:37:52,758 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-10-29 11:37:54,036 INFO  L293             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-10-29 11:37:54,037 INFO  L298             CfgBuilder]: Removed 5 assume(true) statements.
[2020-10-29 11:37:54,039 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 11:37:54 BoogieIcfgContainer
[2020-10-29 11:37:54,039 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-10-29 11:37:54,041 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-10-29 11:37:54,042 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-10-29 11:37:54,045 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-10-29 11:37:54,046 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 11:37:51" (1/3) ...
[2020-10-29 11:37:54,046 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f2073c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 11:37:54, skipping insertion in model container
[2020-10-29 11:37:54,047 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:52" (2/3) ...
[2020-10-29 11:37:54,047 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f2073c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 11:37:54, skipping insertion in model container
[2020-10-29 11:37:54,047 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 11:37:54" (3/3) ...
[2020-10-29 11:37:54,049 INFO  L111   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product25.cil.c
[2020-10-29 11:37:54,061 INFO  L164   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-10-29 11:37:54,067 INFO  L176   ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations.
[2020-10-29 11:37:54,081 INFO  L253      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2020-10-29 11:37:54,113 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2020-10-29 11:37:54,113 INFO  L378      AbstractCegarLoop]: Hoare is true
[2020-10-29 11:37:54,114 INFO  L379      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-10-29 11:37:54,114 INFO  L380      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-10-29 11:37:54,114 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-10-29 11:37:54,114 INFO  L382      AbstractCegarLoop]: Difference is false
[2020-10-29 11:37:54,114 INFO  L383      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-10-29 11:37:54,114 INFO  L387      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-10-29 11:37:54,138 INFO  L276                IsEmpty]: Start isEmpty. Operand 168 states.
[2020-10-29 11:37:54,148 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 54
[2020-10-29 11:37:54,148 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-29 11:37:54,149 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]
[2020-10-29 11:37:54,150 INFO  L429      AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-29 11:37:54,156 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-29 11:37:54,157 INFO  L82        PathProgramCache]: Analyzing trace with hash 702987771, now seen corresponding path program 1 times
[2020-10-29 11:37:54,167 INFO  L162   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-29 11:37:54,168 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1065100019]
[2020-10-29 11:37:54,168 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-29 11:37:54,475 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:37:54,557 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:37:54,723 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:37:54,942 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:37:57,499 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:37:57,500 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 87
[2020-10-29 11:37:57,504 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-10-29 11:37:57,504 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3018
[2020-10-29 11:37:57,507 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:37:57,508 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:37:57,508 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-29 11:37:57,509 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-29 11:37:57,510 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 47
[2020-10-29 11:37:57,511 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 6
[2020-10-29 11:37:57,979 WARN  L193               SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2020-10-29 11:37:57,981 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-29 11:37:58,017 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:37:58,041 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:37:58,162 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:37:58,163 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-29 11:37:58,163 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:37:58,163 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 144
[2020-10-29 11:37:58,163 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:37:58,164 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:37:58,164 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-29 11:37:58,164 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-29 11:37:58,164 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-10-29 11:37:58,164 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-29 11:37:58,200 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-10-29 11:37:58,205 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:37:58,207 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:37:58,210 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:37:58,210 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-29 11:37:58,210 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:37:58,210 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-10-29 11:37:58,211 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:37:58,211 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:37:58,211 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-29 11:37:58,211 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-29 11:37:58,211 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-29 11:37:58,212 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-29 11:37:58,214 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-10-29 11:37:58,217 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:37:58,219 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:37:58,221 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:37:58,221 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-29 11:37:58,221 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:37:58,221 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-29 11:37:58,222 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:37:58,222 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:37:58,222 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-29 11:37:58,222 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-29 11:37:58,222 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-29 11:37:58,222 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-29 11:37:58,225 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-10-29 11:37:58,228 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:37:58,229 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:37:58,232 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:37:58,232 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-29 11:37:58,233 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:37:58,233 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-29 11:37:58,233 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:37:58,233 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:37:58,233 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-29 11:37:58,234 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-29 11:37:58,234 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-29 11:37:58,234 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-29 11:37:58,236 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-10-29 11:37:58,237 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:37:58,239 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:37:58,242 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:37:58,242 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-29 11:37:58,242 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:37:58,243 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-10-29 11:37:58,243 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:37:58,243 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:37:58,243 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-29 11:37:58,243 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-29 11:37:58,244 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-29 11:37:58,244 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-29 11:37:58,245 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2020-10-29 11:37:58,251 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:37:58,253 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:37:58,261 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:37:58,261 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-29 11:37:58,261 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:37:58,262 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-10-29 11:37:58,262 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:37:58,262 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:37:58,262 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-29 11:37:58,262 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-29 11:37:58,263 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-29 11:37:58,263 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-29 11:37:58,264 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2020-10-29 11:37:58,267 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:37:58,268 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:37:58,272 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:37:58,272 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-29 11:37:58,272 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:37:58,272 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-29 11:37:58,273 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:37:58,273 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:37:58,273 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-29 11:37:58,273 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-29 11:37:58,273 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-29 11:37:58,273 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-29 11:37:58,276 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44
[2020-10-29 11:37:58,278 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:37:58,279 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:37:58,280 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:37:58,281 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-29 11:37:58,281 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:37:58,281 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-29 11:37:58,281 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:37:58,281 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:37:58,281 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-29 11:37:58,282 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-29 11:37:58,282 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-29 11:37:58,282 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-29 11:37:58,300 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-29 11:37:58,301 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1065100019]
[2020-10-29 11:37:58,304 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-29 11:37:58,304 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-10-29 11:37:58,305 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257519437]
[2020-10-29 11:37:58,311 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-10-29 11:37:58,312 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-29 11:37:58,326 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-10-29 11:37:58,328 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-10-29 11:37:58,330 INFO  L87              Difference]: Start difference. First operand 168 states. Second operand 4 states.
[2020-10-29 11:37:58,763 WARN  L193               SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 204
[2020-10-29 11:38:00,037 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-29 11:38:00,038 INFO  L93              Difference]: Finished difference Result 264 states and 347 transitions.
[2020-10-29 11:38:00,039 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-10-29 11:38:00,041 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 53
[2020-10-29 11:38:00,042 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-29 11:38:00,055 INFO  L225             Difference]: With dead ends: 264
[2020-10-29 11:38:00,055 INFO  L226             Difference]: Without dead ends: 141
[2020-10-29 11:38:00,060 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-10-29 11:38:00,081 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 141 states.
[2020-10-29 11:38:00,155 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 111.
[2020-10-29 11:38:00,156 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 111 states.
[2020-10-29 11:38:00,159 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 128 transitions.
[2020-10-29 11:38:00,161 INFO  L78                 Accepts]: Start accepts. Automaton has 111 states and 128 transitions. Word has length 53
[2020-10-29 11:38:00,161 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-29 11:38:00,162 INFO  L481      AbstractCegarLoop]: Abstraction has 111 states and 128 transitions.
[2020-10-29 11:38:00,162 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-10-29 11:38:00,162 INFO  L276                IsEmpty]: Start isEmpty. Operand 111 states and 128 transitions.
[2020-10-29 11:38:00,165 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 63
[2020-10-29 11:38:00,165 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-29 11:38:00,166 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]
[2020-10-29 11:38:00,166 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-10-29 11:38:00,166 INFO  L429      AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-29 11:38:00,167 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-29 11:38:00,167 INFO  L82        PathProgramCache]: Analyzing trace with hash -2024464668, now seen corresponding path program 1 times
[2020-10-29 11:38:00,167 INFO  L162   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-29 11:38:00,168 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1541142564]
[2020-10-29 11:38:00,168 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-29 11:38:00,199 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:38:00,219 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:38:00,255 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:38:02,737 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:38:02,738 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 100
[2020-10-29 11:38:02,738 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-10-29 11:38:02,738 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2536
[2020-10-29 11:38:02,738 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:38:02,739 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:38:02,739 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-10-29 11:38:02,739 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-29 11:38:02,739 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 80
[2020-10-29 11:38:02,739 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-29 11:38:03,142 WARN  L193               SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2020-10-29 11:38:03,143 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-29 11:38:03,166 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:38:03,180 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:38:03,264 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:38:03,264 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-29 11:38:03,264 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:38:03,264 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 96
[2020-10-29 11:38:03,265 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:38:03,265 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:38:03,265 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-29 11:38:03,265 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-29 11:38:03,265 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-10-29 11:38:03,266 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-29 11:38:03,285 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-10-29 11:38:03,287 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:38:03,287 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:38:03,289 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:38:03,289 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-29 11:38:03,289 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:38:03,289 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-29 11:38:03,290 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:38:03,290 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:38:03,290 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-29 11:38:03,290 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-29 11:38:03,290 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-29 11:38:03,291 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-29 11:38:03,292 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-10-29 11:38:03,293 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:38:03,294 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:38:03,295 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:38:03,295 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-29 11:38:03,296 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:38:03,296 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-29 11:38:03,296 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:38:03,296 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:38:03,296 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-29 11:38:03,297 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-29 11:38:03,297 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-29 11:38:03,297 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-29 11:38:03,298 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-10-29 11:38:03,299 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:38:03,300 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:38:03,302 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:38:03,302 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-29 11:38:03,303 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:38:03,303 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-29 11:38:03,303 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:38:03,303 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:38:03,303 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-29 11:38:03,304 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-29 11:38:03,304 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-29 11:38:03,304 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-29 11:38:03,305 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-10-29 11:38:03,307 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:38:03,307 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:38:03,309 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:38:03,309 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-29 11:38:03,309 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:38:03,309 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-29 11:38:03,310 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:38:03,310 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:38:03,310 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-29 11:38:03,310 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-29 11:38:03,310 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-29 11:38:03,311 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-29 11:38:03,323 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31
[2020-10-29 11:38:03,324 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:38:03,325 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:38:03,327 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:38:03,328 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-10-29 11:38:03,328 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:38:03,351 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-29 11:38:03,352 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:38:03,352 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:38:03,352 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-29 11:38:03,352 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-29 11:38:03,353 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-10-29 11:38:03,353 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-29 11:38:03,360 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-10-29 11:38:03,361 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:38:03,362 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:38:03,363 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:38:03,363 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-29 11:38:03,363 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:38:03,364 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-29 11:38:03,364 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:38:03,364 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:38:03,364 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-29 11:38:03,365 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-29 11:38:03,365 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-29 11:38:03,365 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-29 11:38:03,366 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41
[2020-10-29 11:38:03,368 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:38:03,369 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:38:03,371 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:38:03,371 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-29 11:38:03,372 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:38:03,372 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-29 11:38:03,372 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:38:03,372 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:38:03,373 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-29 11:38:03,373 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-29 11:38:03,373 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-29 11:38:03,373 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-29 11:38:03,375 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47
[2020-10-29 11:38:03,376 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:38:03,377 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:38:03,381 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:38:03,382 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-29 11:38:03,382 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:38:03,382 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-10-29 11:38:03,382 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:38:03,383 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:38:03,383 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-10-29 11:38:03,383 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-29 11:38:03,383 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-29 11:38:03,383 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-29 11:38:03,402 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53
[2020-10-29 11:38:03,403 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-29 11:38:03,404 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-29 11:38:03,406 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-29 11:38:03,406 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-29 11:38:03,406 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-29 11:38:03,406 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-29 11:38:03,407 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-29 11:38:03,407 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.3
[2020-10-29 11:38:03,407 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-29 11:38:03,407 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-29 11:38:03,408 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-29 11:38:03,408 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-29 11:38:03,425 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-29 11:38:03,426 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1541142564]
[2020-10-29 11:38:03,426 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-29 11:38:03,426 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-10-29 11:38:03,426 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677470717]
[2020-10-29 11:38:03,428 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-10-29 11:38:03,428 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-29 11:38:03,429 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-10-29 11:38:03,429 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2020-10-29 11:38:03,429 INFO  L87              Difference]: Start difference. First operand 111 states and 128 transitions. Second operand 8 states.
[2020-10-29 11:38:04,099 WARN  L193               SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 204
[2020-10-29 11:38:05,613 WARN  L193               SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 206
[2020-10-29 11:38:06,122 WARN  L193               SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 208
[2020-10-29 11:38:06,571 WARN  L193               SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 208
[2020-10-29 11:38:06,972 WARN  L193               SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 204
[2020-10-29 11:38:07,547 WARN  L193               SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 206
[2020-10-29 11:38:08,734 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-29 11:38:08,734 INFO  L93              Difference]: Finished difference Result 351 states and 479 transitions.
[2020-10-29 11:38:08,735 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-10-29 11:38:08,735 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 62
[2020-10-29 11:38:08,736 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-29 11:38:08,741 INFO  L225             Difference]: With dead ends: 351
[2020-10-29 11:38:08,741 INFO  L226             Difference]: Without dead ends: 264
[2020-10-29 11:38:08,744 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210
[2020-10-29 11:38:08,745 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 264 states.
[2020-10-29 11:38:08,835 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 195.
[2020-10-29 11:38:08,836 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 195 states.
[2020-10-29 11:38:08,838 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 236 transitions.
[2020-10-29 11:38:08,838 INFO  L78                 Accepts]: Start accepts. Automaton has 195 states and 236 transitions. Word has length 62
[2020-10-29 11:38:08,839 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-29 11:38:08,839 INFO  L481      AbstractCegarLoop]: Abstraction has 195 states and 236 transitions.
[2020-10-29 11:38:08,839 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-10-29 11:38:08,839 INFO  L276                IsEmpty]: Start isEmpty. Operand 195 states and 236 transitions.
[2020-10-29 11:38:08,844 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 71
[2020-10-29 11:38:08,844 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-29 11:38:08,844 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]
[2020-10-29 11:38:08,845 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-10-29 11:38:08,845 INFO  L429      AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-29 11:38:08,845 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-29 11:38:08,845 INFO  L82        PathProgramCache]: Analyzing trace with hash -2134276980, now seen corresponding path program 1 times
[2020-10-29 11:38:08,846 INFO  L162   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-29 11:38:08,846 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [280732360]
[2020-10-29 11:38:08,846 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-29 11:38:08,890 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-10-29 11:38:08,893 INFO  L173   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-10-29 11:38:08,893 INFO  L523         BasicCegarLoop]: Counterexample might be feasible
[2020-10-29 11:38:08,897 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-10-29 11:38:08,917 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 11:38:08 BoogieIcfgContainer
[2020-10-29 11:38:08,918 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-10-29 11:38:08,920 INFO  L168              Benchmark]: Toolchain (without parser) took 17068.17 ms. Allocated memory was 151.0 MB in the beginning and 396.4 MB in the end (delta: 245.4 MB). Free memory was 124.5 MB in the beginning and 246.8 MB in the end (delta: -122.3 MB). Peak memory consumption was 124.3 MB. Max. memory is 8.0 GB.
[2020-10-29 11:38:08,920 INFO  L168              Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 151.0 MB. Free memory is still 123.6 MB. There was no memory consumed. Max. memory is 8.0 GB.
[2020-10-29 11:38:08,921 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 626.75 ms. Allocated memory is still 151.0 MB. Free memory was 124.0 MB in the beginning and 102.9 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB.
[2020-10-29 11:38:08,922 INFO  L168              Benchmark]: Boogie Preprocessor took 127.57 ms. Allocated memory is still 151.0 MB. Free memory was 102.9 MB in the beginning and 98.8 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB.
[2020-10-29 11:38:08,923 INFO  L168              Benchmark]: RCFGBuilder took 1425.81 ms. Allocated memory was 151.0 MB in the beginning and 189.8 MB in the end (delta: 38.8 MB). Free memory was 98.8 MB in the beginning and 163.2 MB in the end (delta: -64.3 MB). Peak memory consumption was 46.0 MB. Max. memory is 8.0 GB.
[2020-10-29 11:38:08,924 INFO  L168              Benchmark]: TraceAbstraction took 14876.32 ms. Allocated memory was 189.8 MB in the beginning and 396.4 MB in the end (delta: 206.6 MB). Free memory was 162.6 MB in the beginning and 246.8 MB in the end (delta: -84.2 MB). Peak memory consumption was 122.4 MB. Max. memory is 8.0 GB.
[2020-10-29 11:38:08,928 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.17 ms. Allocated memory is still 151.0 MB. Free memory is still 123.6 MB. There was no memory consumed. Max. memory is 8.0 GB.
 * CACSL2BoogieTranslator took 626.75 ms. Allocated memory is still 151.0 MB. Free memory was 124.0 MB in the beginning and 102.9 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB.
 * Boogie Preprocessor took 127.57 ms. Allocated memory is still 151.0 MB. Free memory was 102.9 MB in the beginning and 98.8 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB.
 * RCFGBuilder took 1425.81 ms. Allocated memory was 151.0 MB in the beginning and 189.8 MB in the end (delta: 38.8 MB). Free memory was 98.8 MB in the beginning and 163.2 MB in the end (delta: -64.3 MB). Peak memory consumption was 46.0 MB. Max. memory is 8.0 GB.
 * TraceAbstraction took 14876.32 ms. Allocated memory was 189.8 MB in the beginning and 396.4 MB in the end (delta: 206.6 MB). Free memory was 162.6 MB in the beginning and 246.8 MB in the end (delta: -84.2 MB). Peak memory consumption was 122.4 MB. Max. memory is 8.0 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L258]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L460]              int waterLevel  =    1;
[L461]              int methaneLevelCritical  =    0;
[L587]              int cleanupTimeShifts  =    4;
[L688]              int pumpRunning  =    0;
[L689]              int systemActive  =    1;
[L663]              int retValue_acc ;
[L664]              int tmp ;
[L668]  FCALL       select_helpers()
[L669]  FCALL       select_features()
[L670]  CALL, EXPR  valid_product()
[L578]              int retValue_acc ;
[L581]              retValue_acc = 1
[L582]              return (retValue_acc);
[L670]  RET, EXPR   valid_product()
[L670]              tmp = valid_product()
[L672]  COND TRUE   \read(tmp)
[L674]  FCALL       setup()
[L675]  CALL        runTest()
[L657]  CALL        test()
[L859]              int splverifierCounter ;
[L860]              int tmp ;
[L861]              int tmp___0 ;
[L862]              int tmp___1 ;
[L863]              int tmp___2 ;
[L866]              splverifierCounter = 0
[L868]  COND TRUE   1
[L870]  COND TRUE   splverifierCounter < 4
[L876]              tmp = __VERIFIER_nondet_int()
[L878]  COND TRUE   \read(tmp)
[L880]  CALL        waterRise()
[L478]  COND TRUE   waterLevel < 2
[L479]              waterLevel = waterLevel + 1
[L880]  RET         waterRise()
[L886]              tmp___0 = __VERIFIER_nondet_int()
[L888]  COND FALSE  !(\read(tmp___0))
[L896]              tmp___2 = __VERIFIER_nondet_int()
[L898]  COND TRUE   \read(tmp___2)
[L911]  CALL        timeShift()
[L695]  COND FALSE  !(\read(pumpRunning))
[L702]  COND TRUE   \read(systemActive)
[L704]  CALL        processEnvironment()
[L724]              int tmp ;
[L727]  COND FALSE  !(\read(pumpRunning))
[L742]  FCALL       processEnvironment__wrappee__base()
[L704]  RET         processEnvironment()
[L710]  CALL        __utac_acc__Specification3_spec__1()
[L47]               int tmp ;
[L48]               int tmp___0 ;
[L49]               int tmp___1 ;
[L53]   CALL, EXPR  isMethaneLevelCritical()
[L499]              int retValue_acc ;
[L502]              retValue_acc = methaneLevelCritical
[L503]              return (retValue_acc);
[L53]   RET, EXPR   isMethaneLevelCritical()
[L53]               tmp = isMethaneLevelCritical()
[L55]   COND FALSE  !(\read(tmp))
[L59]   CALL, EXPR  getWaterLevel()
[L531]              int retValue_acc ;
[L534]              retValue_acc = waterLevel
[L535]              return (retValue_acc);
[L59]   RET, EXPR   getWaterLevel()
[L59]               tmp___0 = getWaterLevel()
[L61]   COND TRUE   tmp___0 == 2
[L63]   CALL, EXPR  isPumpRunning()
[L794]              int retValue_acc ;
[L797]              retValue_acc = pumpRunning
[L798]              return (retValue_acc);
[L63]   RET, EXPR   isPumpRunning()
[L63]               tmp___1 = isPumpRunning()
[L65]   COND FALSE  !(\read(tmp___1))
[L69]   CALL        __automaton_fail()
[L84]   CALL        reach_error()
[L3]                __assert_fail("0", "minepump_spec3_product25.cil.c", 3, "reach_error")

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 39 procedures, 236 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 14.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 7.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 209 SDtfs, 444 SDslu, 173 SDs, 0 SdLazy, 826 SolverSat, 232 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=195occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 99 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 7.0s InterpolantComputationTime, 185 NumberOfCodeBlocks, 185 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 113 ConstructedInterpolants, 0 QuantifiedInterpolants, 35140 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...