/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=SHALLOWEST --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_product22.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 23:35:22,563 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 23:35:22,567 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 23:35:22,594 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 23:35:22,595 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 23:35:22,596 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 23:35:22,598 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 23:35:22,600 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 23:35:22,602 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 23:35:22,603 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 23:35:22,604 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 23:35:22,605 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 23:35:22,606 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 23:35:22,607 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 23:35:22,608 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 23:35:22,610 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 23:35:22,611 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 23:35:22,612 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 23:35:22,614 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 23:35:22,616 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 23:35:22,622 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 23:35:22,623 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 23:35:22,627 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 23:35:22,628 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 23:35:22,631 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 23:35:22,631 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 23:35:22,631 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 23:35:22,635 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 23:35:22,636 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 23:35:22,640 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 23:35:22,641 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 23:35:22,642 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 23:35:22,643 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 23:35:22,645 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 23:35:22,646 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 23:35:22,647 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 23:35:22,647 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 23:35:22,648 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 23:35:22,648 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 23:35:22,649 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 23:35:22,651 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 23:35:22,652 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 23:35:22,716 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 23:35:22,716 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 23:35:22,720 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 23:35:22,720 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 23:35:22,720 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 23:35:22,721 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 23:35:22,721 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 23:35:22,721 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 23:35:22,721 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 23:35:22,721 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 23:35:22,722 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 23:35:22,725 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 23:35:22,726 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 23:35:22,726 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 23:35:22,726 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 23:35:22,726 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 23:35:22,726 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 23:35:22,727 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 23:35:22,727 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 23:35:22,728 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 23:35:22,728 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 23:35:22,728 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 23:35:22,728 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 23:35:22,729 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 23:35:22,729 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 23:35:22,729 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 23:35:22,729 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 23:35:22,729 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 23:35:22,730 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 23:35:22,730 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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;log-additional-information=true;
[2020-09-24 23:35:23,233 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 23:35:23,259 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 23:35:23,264 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 23:35:23,267 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 23:35:23,268 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 23:35:23,269 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product22.cil.c
[2020-09-24 23:35:23,353 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6b9e05861/90c12202a9ef4ec7b1785db442a75e3e/FLAG29696db19
[2020-09-24 23:35:23,967 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 23:35:23,968 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product22.cil.c
[2020-09-24 23:35:23,990 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6b9e05861/90c12202a9ef4ec7b1785db442a75e3e/FLAG29696db19
[2020-09-24 23:35:24,223 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6b9e05861/90c12202a9ef4ec7b1785db442a75e3e
[2020-09-24 23:35:24,237 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 23:35:24,244 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 23:35:24,245 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 23:35:24,245 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 23:35:24,252 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 23:35:24,253 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:35:24" (1/1) ...
[2020-09-24 23:35:24,258 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@437c5ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:24, skipping insertion in model container
[2020-09-24 23:35:24,258 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:35:24" (1/1) ...
[2020-09-24 23:35:24,269 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 23:35:24,354 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 23:35:24,718 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 23:35:24,827 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 23:35:24,922 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 23:35:24,962 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 23:35:24,963 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:24 WrapperNode
[2020-09-24 23:35:24,963 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 23:35:24,964 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 23:35:24,964 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 23:35:24,965 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 23:35:24,984 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:24" (1/1) ...
[2020-09-24 23:35:24,985 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:24" (1/1) ...
[2020-09-24 23:35:25,007 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:24" (1/1) ...
[2020-09-24 23:35:25,007 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:24" (1/1) ...
[2020-09-24 23:35:25,042 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:24" (1/1) ...
[2020-09-24 23:35:25,054 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:24" (1/1) ...
[2020-09-24 23:35:25,062 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:24" (1/1) ...
[2020-09-24 23:35:25,075 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 23:35:25,075 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 23:35:25,075 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 23:35:25,076 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 23:35:25,077 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:24" (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 23:35:25,162 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 23:35:25,162 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 23:35:25,162 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 23:35:25,163 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 23:35:25,163 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 23:35:25,164 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 23:35:25,164 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 23:35:25,164 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 23:35:25,165 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 23:35:25,165 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-24 23:35:25,166 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 23:35:25,166 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 23:35:25,166 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 23:35:25,166 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 23:35:25,166 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 23:35:25,167 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 23:35:25,168 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 23:35:25,168 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 23:35:25,168 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 23:35:25,168 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 23:35:25,169 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 23:35:25,169 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 23:35:25,170 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor
[2020-09-24 23:35:25,170 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 23:35:25,172 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 23:35:25,172 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 23:35:25,173 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 23:35:25,173 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 23:35:25,173 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 23:35:25,174 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-24 23:35:25,174 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-24 23:35:25,174 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 23:35:25,174 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 23:35:25,174 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 23:35:25,175 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 23:35:25,175 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 23:35:25,175 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 23:35:25,175 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 23:35:25,175 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-24 23:35:25,176 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 23:35:25,176 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 23:35:25,176 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 23:35:25,176 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 23:35:25,176 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 23:35:25,176 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 23:35:25,177 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 23:35:25,177 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 23:35:25,177 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 23:35:25,177 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-24 23:35:25,177 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 23:35:25,178 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 23:35:25,178 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 23:35:25,178 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 23:35:25,179 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 23:35:25,179 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 23:35:25,180 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 23:35:25,180 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 23:35:25,180 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 23:35:25,180 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 23:35:25,180 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 23:35:25,180 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 23:35:25,181 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 23:35:25,181 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 23:35:25,181 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 23:35:25,181 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 23:35:25,181 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 23:35:25,181 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-24 23:35:25,182 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-24 23:35:25,182 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 23:35:25,182 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 23:35:25,183 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-24 23:35:25,183 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor
[2020-09-24 23:35:25,184 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 23:35:25,185 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 23:35:25,185 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 23:35:25,185 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 23:35:25,185 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 23:35:25,185 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 23:35:25,185 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 23:35:25,186 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 23:35:25,186 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 23:35:25,186 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 23:35:25,186 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 23:35:25,186 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 23:35:25,186 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 23:35:25,186 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 23:35:25,187 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 23:35:25,188 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 23:35:25,188 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 23:35:25,188 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 23:35:25,188 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 23:35:25,188 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 23:35:26,472 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 23:35:26,472 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 23:35:26,489 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:35:26 BoogieIcfgContainer
[2020-09-24 23:35:26,489 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 23:35:26,492 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 23:35:26,492 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 23:35:26,497 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 23:35:26,498 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:35:24" (1/3) ...
[2020-09-24 23:35:26,499 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@305efca4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:35:26, skipping insertion in model container
[2020-09-24 23:35:26,499 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:24" (2/3) ...
[2020-09-24 23:35:26,500 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@305efca4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:35:26, skipping insertion in model container
[2020-09-24 23:35:26,500 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:35:26" (3/3) ...
[2020-09-24 23:35:26,503 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product22.cil.c
[2020-09-24 23:35:26,516 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 23:35:26,533 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 23:35:26,559 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 23:35:26,607 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 23:35:26,607 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 23:35:26,607 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 23:35:26,608 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 23:35:26,608 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 23:35:26,608 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 23:35:26,608 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 23:35:26,608 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 23:35:26,656 INFO  L276                IsEmpty]: Start isEmpty. Operand 310 states.
[2020-09-24 23:35:26,689 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-24 23:35:26,690 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 23:35:26,693 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 23:35:26,693 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 23:35:26,702 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 23:35:26,703 INFO  L82        PathProgramCache]: Analyzing trace with hash 1572596205, now seen corresponding path program 1 times
[2020-09-24 23:35:26,716 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 23:35:26,717 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1317319523]
[2020-09-24 23:35:26,718 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 23:35:27,104 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:27,317 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:27,481 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:29,052 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:32,155 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:32,155 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-24 23:35:32,156 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 23:35:32,156 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5038
[2020-09-24 23:35:32,160 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:32,162 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 23:35:32,162 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 77
[2020-09-24 23:35:32,162 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 93
[2020-09-24 23:35:32,163 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 6
[2020-09-24 23:35:32,637 WARN  L193               SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 23:35:32,640 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 23:35:32,679 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:32,720 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:32,959 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:32,959 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 23:35:32,959 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:32,959 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 278
[2020-09-24 23:35:32,960 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:32,960 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:35:32,960 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:32,960 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 73
[2020-09-24 23:35:32,961 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:35:33,028 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 23:35:33,029 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:33,031 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:33,035 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:33,035 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 23:35:33,035 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:33,035 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 23:35:33,036 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:33,036 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:35:33,036 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:33,036 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 23:35:33,037 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:35:33,039 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 23:35:33,040 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:33,041 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:33,046 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:33,049 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 23:35:33,049 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:33,050 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 23:35:33,050 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:33,050 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:35:33,050 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:33,051 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 23:35:33,051 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 23:35:33,053 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 23:35:33,055 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:33,058 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:33,067 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:33,068 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 23:35:33,069 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:33,069 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-24 23:35:33,069 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:33,070 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:35:33,070 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:33,070 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 23:35:33,070 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 23:35:33,073 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 23:35:33,075 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:33,077 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:33,082 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:33,082 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 23:35:33,082 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:33,083 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 23:35:33,083 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:33,083 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:35:33,083 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:33,084 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 23:35:33,084 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:35:33,087 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 23:35:33,089 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:33,090 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:33,094 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:33,095 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 23:35:33,095 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:33,095 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 23:35:33,096 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:33,096 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:35:33,096 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:33,096 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 23:35:33,097 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:35:33,099 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 23:35:33,100 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:33,102 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:33,115 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:33,115 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 23:35:33,116 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:33,116 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 14
[2020-09-24 23:35:33,116 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:33,117 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 23:35:33,117 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:33,118 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 23:35:33,118 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 23:35:33,167 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-24 23:35:33,170 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:33,172 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:33,175 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:33,176 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 23:35:33,176 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:33,177 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 23:35:33,177 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:33,177 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 23:35:33,178 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 23:35:33,178 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 23:35:33,179 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 23:35:33,235 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 23:35:33,237 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1317319523]
[2020-09-24 23:35:33,240 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 23:35:33,240 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-24 23:35:33,242 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366212963]
[2020-09-24 23:35:33,255 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-24 23:35:33,255 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 23:35:33,280 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-24 23:35:33,281 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-24 23:35:33,285 INFO  L87              Difference]: Start difference. First operand 310 states. Second operand 8 states.
[2020-09-24 23:35:34,015 WARN  L193               SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 23:35:36,067 WARN  L193               SmtUtils]: Spent 593.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188
[2020-09-24 23:35:36,718 WARN  L193               SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190
[2020-09-24 23:35:37,052 WARN  L193               SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-24 23:35:37,506 WARN  L193               SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 23:35:37,951 WARN  L193               SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 23:35:38,287 WARN  L193               SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 23:35:38,658 WARN  L193               SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 23:35:40,033 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 23:35:40,034 INFO  L93              Difference]: Finished difference Result 651 states and 798 transitions.
[2020-09-24 23:35:40,037 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2020-09-24 23:35:40,039 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-24 23:35:40,040 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 23:35:40,064 INFO  L225             Difference]: With dead ends: 651
[2020-09-24 23:35:40,064 INFO  L226             Difference]: Without dead ends: 452
[2020-09-24 23:35:40,072 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272
[2020-09-24 23:35:40,095 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 452 states.
[2020-09-24 23:35:40,255 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 406.
[2020-09-24 23:35:40,257 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 406 states.
[2020-09-24 23:35:40,261 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 459 transitions.
[2020-09-24 23:35:40,263 INFO  L78                 Accepts]: Start accepts. Automaton has 406 states and 459 transitions. Word has length 153
[2020-09-24 23:35:40,264 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 23:35:40,264 INFO  L479      AbstractCegarLoop]: Abstraction has 406 states and 459 transitions.
[2020-09-24 23:35:40,265 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-24 23:35:40,265 INFO  L276                IsEmpty]: Start isEmpty. Operand 406 states and 459 transitions.
[2020-09-24 23:35:40,270 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 173
[2020-09-24 23:35:40,270 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 23:35:40,270 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]
[2020-09-24 23:35:40,271 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 23:35:40,271 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 23:35:40,271 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 23:35:40,272 INFO  L82        PathProgramCache]: Analyzing trace with hash 666737866, now seen corresponding path program 1 times
[2020-09-24 23:35:40,272 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 23:35:40,272 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [747361451]
[2020-09-24 23:35:40,273 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 23:35:40,338 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:40,400 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:40,781 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:40,781 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 207
[2020-09-24 23:35:40,782 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:40,782 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 440
[2020-09-24 23:35:40,782 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:40,783 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:35:40,783 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 153
[2020-09-24 23:35:40,783 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-24 23:35:40,784 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 23:35:41,161 WARN  L193               SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 23:35:41,162 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 23:35:41,171 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:41,181 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:41,309 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:41,310 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 23:35:41,310 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:41,310 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 137
[2020-09-24 23:35:41,310 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:41,311 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 23:35:41,311 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:41,311 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 23:35:41,311 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:35:41,344 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 23:35:41,345 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:41,346 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:41,348 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:41,349 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 23:35:41,349 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:41,349 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 23:35:41,349 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:41,350 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 23:35:41,350 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:41,350 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 23:35:41,350 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:35:41,352 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 23:35:41,352 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:41,353 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:41,355 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:41,355 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 23:35:41,355 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:41,356 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 23:35:41,356 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:41,356 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 23:35:41,356 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:41,356 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 23:35:41,357 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:35:41,358 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 23:35:41,358 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:41,360 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:41,364 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:41,364 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 23:35:41,364 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:41,364 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 23:35:41,365 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:41,365 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 23:35:41,365 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:41,365 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 23:35:41,365 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:35:41,367 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 23:35:41,368 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:41,368 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:41,370 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:41,370 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 23:35:41,371 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:41,371 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 23:35:41,371 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:41,371 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 23:35:41,371 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:41,372 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 23:35:41,372 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:35:41,385 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116
[2020-09-24 23:35:41,386 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:41,387 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:41,389 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:41,390 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 23:35:41,390 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:41,390 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 23:35:41,390 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:41,391 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 23:35:41,391 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:41,391 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 23:35:41,391 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:35:41,400 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129
[2020-09-24 23:35:41,402 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:41,403 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:41,406 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:41,407 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 23:35:41,407 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:41,407 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 23:35:41,407 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:41,407 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:35:41,408 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:41,408 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-24 23:35:41,408 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:35:41,410 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-24 23:35:41,411 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:41,413 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:41,414 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:41,414 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 23:35:41,415 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:41,415 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 23:35:41,415 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:41,415 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 23:35:41,416 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 23:35:41,416 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 23:35:41,416 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 23:35:41,418 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-24 23:35:41,419 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:41,420 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:41,422 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:41,422 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 23:35:41,423 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:41,423 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 23:35:41,423 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:41,424 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 23:35:41,424 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 23:35:41,424 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 23:35:41,424 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 23:35:41,426 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160
[2020-09-24 23:35:41,427 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:41,429 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:41,431 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:41,431 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 23:35:41,431 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:41,431 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 23:35:41,432 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:41,432 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 23:35:41,432 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 23:35:41,432 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 23:35:41,433 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:35:41,467 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 23:35:41,467 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [747361451]
[2020-09-24 23:35:41,468 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 23:35:41,468 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-24 23:35:41,468 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378798600]
[2020-09-24 23:35:41,471 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-24 23:35:41,471 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 23:35:41,471 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-24 23:35:41,471 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-24 23:35:41,472 INFO  L87              Difference]: Start difference. First operand 406 states and 459 transitions. Second operand 6 states.
[2020-09-24 23:35:42,005 WARN  L193               SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 23:35:43,500 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 23:35:43,500 INFO  L93              Difference]: Finished difference Result 801 states and 981 transitions.
[2020-09-24 23:35:43,501 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2020-09-24 23:35:43,501 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 172
[2020-09-24 23:35:43,502 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 23:35:43,508 INFO  L225             Difference]: With dead ends: 801
[2020-09-24 23:35:43,508 INFO  L226             Difference]: Without dead ends: 505
[2020-09-24 23:35:43,512 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2020-09-24 23:35:43,520 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 505 states.
[2020-09-24 23:35:43,671 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 402.
[2020-09-24 23:35:43,671 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 402 states.
[2020-09-24 23:35:43,679 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 450 transitions.
[2020-09-24 23:35:43,680 INFO  L78                 Accepts]: Start accepts. Automaton has 402 states and 450 transitions. Word has length 172
[2020-09-24 23:35:43,681 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 23:35:43,681 INFO  L479      AbstractCegarLoop]: Abstraction has 402 states and 450 transitions.
[2020-09-24 23:35:43,682 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-24 23:35:43,682 INFO  L276                IsEmpty]: Start isEmpty. Operand 402 states and 450 transitions.
[2020-09-24 23:35:43,685 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 186
[2020-09-24 23:35:43,685 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 23:35:43,685 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 23:35:43,685 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 23:35:43,686 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 23:35:43,686 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 23:35:43,686 INFO  L82        PathProgramCache]: Analyzing trace with hash 1645650045, now seen corresponding path program 1 times
[2020-09-24 23:35:43,686 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 23:35:43,687 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1350428178]
[2020-09-24 23:35:43,687 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 23:35:43,760 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-24 23:35:43,768 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-24 23:35:43,769 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 23:35:43,774 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 23:35:43,802 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 11:35:43 BoogieIcfgContainer
[2020-09-24 23:35:43,802 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 23:35:43,804 INFO  L168              Benchmark]: Toolchain (without parser) took 19565.20 ms. Allocated memory was 146.8 MB in the beginning and 475.0 MB in the end (delta: 328.2 MB). Free memory was 101.8 MB in the beginning and 405.2 MB in the end (delta: -303.4 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB.
[2020-09-24 23:35:43,805 INFO  L168              Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 146.8 MB. Free memory was 121.5 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-09-24 23:35:43,806 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 718.66 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 101.2 MB in the beginning and 172.8 MB in the end (delta: -71.6 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB.
[2020-09-24 23:35:43,807 INFO  L168              Benchmark]: Boogie Preprocessor took 110.74 ms. Allocated memory is still 203.4 MB. Free memory was 172.8 MB in the beginning and 168.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB.
[2020-09-24 23:35:43,808 INFO  L168              Benchmark]: RCFGBuilder took 1414.31 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 168.0 MB in the beginning and 177.0 MB in the end (delta: -9.0 MB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB.
[2020-09-24 23:35:43,809 INFO  L168              Benchmark]: TraceAbstraction took 17310.18 ms. Allocated memory was 237.0 MB in the beginning and 475.0 MB in the end (delta: 238.0 MB). Free memory was 177.0 MB in the beginning and 405.2 MB in the end (delta: -228.2 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB.
[2020-09-24 23:35:43,813 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.27 ms. Allocated memory is still 146.8 MB. Free memory was 121.5 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 718.66 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 101.2 MB in the beginning and 172.8 MB in the end (delta: -71.6 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 110.74 ms. Allocated memory is still 203.4 MB. Free memory was 172.8 MB in the beginning and 168.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1414.31 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 168.0 MB in the beginning and 177.0 MB in the end (delta: -9.0 MB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 17310.18 ms. Allocated memory was 237.0 MB in the beginning and 475.0 MB in the end (delta: 238.0 MB). Free memory was 177.0 MB in the beginning and 405.2 MB in the end (delta: -228.2 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 140]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L47]               int waterLevel  =    1;
[L48]               int methaneLevelCritical  =    0;
[L145]              int cleanupTimeShifts  =    4;
[L286]              int pumpRunning  =    0;
[L287]              int systemActive  =    1;
[L709]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L224]              int retValue_acc ;
[L225]              int tmp ;
[L229]  FCALL       select_helpers()
[L230]  FCALL       select_features()
[L231]  CALL, EXPR  valid_product()
[L273]              int retValue_acc ;
[L276]              retValue_acc = 1
[L277]              return (retValue_acc);
[L231]  RET, EXPR   valid_product()
[L231]              tmp = valid_product()
[L233]  COND TRUE   \read(tmp)
[L235]  FCALL       setup()
[L236]  CALL        runTest()
[L215]  CALL        test()
[L474]              int splverifierCounter ;
[L475]              int tmp ;
[L476]              int tmp___0 ;
[L477]              int tmp___1 ;
[L478]              int tmp___2 ;
[L481]              splverifierCounter = 0
[L483]  COND TRUE   1
[L485]  COND TRUE   splverifierCounter < 4
[L491]              tmp = __VERIFIER_nondet_int()
[L493]  COND TRUE   \read(tmp)
[L495]  CALL        waterRise()
[L65]   COND TRUE   waterLevel < 2
[L66]               waterLevel = waterLevel + 1
[L495]  RET         waterRise()
[L501]              tmp___0 = __VERIFIER_nondet_int()
[L503]  COND FALSE  !(\read(tmp___0))
[L511]              tmp___2 = __VERIFIER_nondet_int()
[L513]  COND TRUE   \read(tmp___2)
[L515]  CALL        startSystem()
[L468]              systemActive = 1
[L515]  RET         startSystem()
[L528]  CALL        timeShift()
[L294]  COND FALSE  !(\read(pumpRunning))
[L301]  COND TRUE   \read(systemActive)
[L303]  CALL        processEnvironment()
[L349]              int tmp ;
[L352]  COND FALSE  !(\read(pumpRunning))
[L367]  CALL        processEnvironment__wrappee__lowWaterSensor()
[L323]              int tmp ;
[L326]  COND FALSE  !(\read(pumpRunning))
[L341]  FCALL       processEnvironment__wrappee__base()
[L367]  RET         processEnvironment__wrappee__lowWaterSensor()
[L303]  RET         processEnvironment()
[L309]  CALL        __utac_acc__Specification3_spec__1()
[L907]              int tmp ;
[L908]              int tmp___0 ;
[L909]              int tmp___1 ;
[L913]  CALL, EXPR  isMethaneLevelCritical()
[L86]               int retValue_acc ;
[L89]               retValue_acc = methaneLevelCritical
[L90]               return (retValue_acc);
[L913]  RET, EXPR   isMethaneLevelCritical()
[L913]              tmp = isMethaneLevelCritical()
[L915]  COND FALSE  !(\read(tmp))
[L919]  CALL, EXPR  getWaterLevel()
[L118]              int retValue_acc ;
[L121]              retValue_acc = waterLevel
[L122]              return (retValue_acc);
[L919]  RET, EXPR   getWaterLevel()
[L919]              tmp___0 = getWaterLevel()
[L921]  COND TRUE   tmp___0 == 2
[L923]  CALL, EXPR  isPumpRunning()
[L401]              int retValue_acc ;
[L404]              retValue_acc = pumpRunning
[L405]              return (retValue_acc);
[L923]  RET, EXPR   isPumpRunning()
[L923]              tmp___1 = isPumpRunning()
[L925]  COND FALSE  !(\read(tmp___1))
[L929]  CALL        __automaton_fail()
[L140]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 39 procedures, 625 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 8.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 501 SDtfs, 1016 SDslu, 732 SDs, 0 SdLazy, 1628 SolverSat, 354 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=406occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 2 MinimizatonAttempts, 149 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 7.1s InterpolantComputationTime, 510 NumberOfCodeBlocks, 510 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 323 ConstructedInterpolants, 0 QuantifiedInterpolants, 131328 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...