/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 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=BIGGEST --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 -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product07.cil.c


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


This is Ultimate 0.1.25-adbd35c
[2020-10-12 17:56:41,138 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-10-12 17:56:41,140 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-10-12 17:56:41,165 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-10-12 17:56:41,166 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-10-12 17:56:41,167 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-10-12 17:56:41,168 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-10-12 17:56:41,170 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-10-12 17:56:41,171 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-10-12 17:56:41,172 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-10-12 17:56:41,173 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-10-12 17:56:41,174 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-10-12 17:56:41,175 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-10-12 17:56:41,176 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-10-12 17:56:41,176 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-10-12 17:56:41,178 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-10-12 17:56:41,178 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-10-12 17:56:41,179 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-10-12 17:56:41,181 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-10-12 17:56:41,183 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-10-12 17:56:41,184 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-10-12 17:56:41,185 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-10-12 17:56:41,186 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-10-12 17:56:41,187 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-10-12 17:56:41,189 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-10-12 17:56:41,190 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-10-12 17:56:41,190 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-10-12 17:56:41,191 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-10-12 17:56:41,191 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-10-12 17:56:41,192 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-10-12 17:56:41,192 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-10-12 17:56:41,193 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-10-12 17:56:41,194 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-10-12 17:56:41,194 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-10-12 17:56:41,195 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-10-12 17:56:41,196 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-10-12 17:56:41,196 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-10-12 17:56:41,196 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-10-12 17:56:41,197 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-10-12 17:56:41,198 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-10-12 17:56:41,198 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-10-12 17:56:41,199 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
[2020-10-12 17:56:41,222 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-10-12 17:56:41,223 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-10-12 17:56:41,224 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-10-12 17:56:41,224 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-10-12 17:56:41,224 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-10-12 17:56:41,224 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-10-12 17:56:41,225 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-10-12 17:56:41,225 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-10-12 17:56:41,225 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-10-12 17:56:41,225 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-10-12 17:56:41,225 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-10-12 17:56:41,226 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-10-12 17:56:41,226 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-10-12 17:56:41,226 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-10-12 17:56:41,226 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-10-12 17:56:41,226 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-10-12 17:56:41,226 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-10-12 17:56:41,227 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-10-12 17:56:41,227 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-10-12 17:56:41,227 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-10-12 17:56:41,227 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-10-12 17:56:41,227 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-12 17:56:41,228 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-10-12 17:56:41,228 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-10-12 17:56:41,228 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-10-12 17:56:41,228 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-10-12 17:56:41,228 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-10-12 17:56:41,229 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-10-12 17:56:41,229 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-10-12 17:56:41,229 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 -> 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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=true;
[2020-10-12 17:56:41,496 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-10-12 17:56:41,510 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-10-12 17:56:41,515 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-10-12 17:56:41,516 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-10-12 17:56:41,517 INFO  L275        PluginConnector]: CDTParser initialized
[2020-10-12 17:56:41,518 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product07.cil.c
[2020-10-12 17:56:41,577 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/594b40e8a/95c774c2f13b4c56a00928c04a5b715d/FLAGc80cf6883
[2020-10-12 17:56:42,051 INFO  L306              CDTParser]: Found 1 translation units.
[2020-10-12 17:56:42,052 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product07.cil.c
[2020-10-12 17:56:42,065 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/594b40e8a/95c774c2f13b4c56a00928c04a5b715d/FLAGc80cf6883
[2020-10-12 17:56:42,331 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/594b40e8a/95c774c2f13b4c56a00928c04a5b715d
[2020-10-12 17:56:42,339 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-10-12 17:56:42,341 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-10-12 17:56:42,342 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-10-12 17:56:42,342 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-10-12 17:56:42,346 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-10-12 17:56:42,347 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:56:42" (1/1) ...
[2020-10-12 17:56:42,350 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7056cb73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:56:42, skipping insertion in model container
[2020-10-12 17:56:42,350 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:56:42" (1/1) ...
[2020-10-12 17:56:42,362 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-10-12 17:56:42,432 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-10-12 17:56:42,854 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-12 17:56:42,866 INFO  L203         MainTranslator]: Completed pre-run
[2020-10-12 17:56:42,943 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-12 17:56:42,977 INFO  L208         MainTranslator]: Completed translation
[2020-10-12 17:56:42,977 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:56:42 WrapperNode
[2020-10-12 17:56:42,978 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-10-12 17:56:42,978 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-10-12 17:56:42,978 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-10-12 17:56:42,978 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-10-12 17:56:42,992 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:56:42" (1/1) ...
[2020-10-12 17:56:42,993 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:56:42" (1/1) ...
[2020-10-12 17:56:43,019 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:56:42" (1/1) ...
[2020-10-12 17:56:43,019 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:56:42" (1/1) ...
[2020-10-12 17:56:43,059 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:56:42" (1/1) ...
[2020-10-12 17:56:43,080 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:56:42" (1/1) ...
[2020-10-12 17:56:43,084 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:56:42" (1/1) ...
[2020-10-12 17:56:43,099 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-10-12 17:56:43,100 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-10-12 17:56:43,100 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-10-12 17:56:43,100 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-10-12 17:56:43,104 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:56:42" (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
[2020-10-12 17:56:43,187 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-10-12 17:56:43,187 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-10-12 17:56:43,187 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-10-12 17:56:43,187 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-10-12 17:56:43,187 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-10-12 17:56:43,188 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-10-12 17:56:43,188 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-10-12 17:56:43,188 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-10-12 17:56:43,188 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-10-12 17:56:43,188 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-10-12 17:56:43,188 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-10-12 17:56:43,188 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-10-12 17:56:43,189 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-10-12 17:56:43,189 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-10-12 17:56:43,189 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-10-12 17:56:43,189 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-10-12 17:56:43,189 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-10-12 17:56:43,190 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-10-12 17:56:43,190 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-10-12 17:56:43,190 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-10-12 17:56:43,190 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-10-12 17:56:43,190 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-10-12 17:56:43,190 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-10-12 17:56:43,190 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-10-12 17:56:43,191 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-10-12 17:56:43,191 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-10-12 17:56:43,191 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-10-12 17:56:43,191 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-10-12 17:56:43,191 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-10-12 17:56:43,191 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-10-12 17:56:43,192 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-10-12 17:56:43,192 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-10-12 17:56:43,192 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-10-12 17:56:43,192 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-10-12 17:56:43,192 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-10-12 17:56:43,192 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-10-12 17:56:43,192 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-10-12 17:56:43,193 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-10-12 17:56:43,193 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-10-12 17:56:43,193 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-10-12 17:56:43,193 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-10-12 17:56:43,193 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-10-12 17:56:43,193 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-10-12 17:56:43,193 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-10-12 17:56:43,194 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-10-12 17:56:43,194 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-10-12 17:56:43,194 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-10-12 17:56:43,194 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-10-12 17:56:43,194 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-10-12 17:56:43,194 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-10-12 17:56:43,195 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-10-12 17:56:43,195 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-10-12 17:56:43,195 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-10-12 17:56:43,195 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-10-12 17:56:43,195 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-10-12 17:56:43,195 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-10-12 17:56:43,196 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-10-12 17:56:43,196 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-10-12 17:56:43,196 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-10-12 17:56:43,196 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-10-12 17:56:43,196 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-10-12 17:56:43,196 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-10-12 17:56:43,196 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-10-12 17:56:43,197 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-10-12 17:56:43,197 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-10-12 17:56:43,197 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-10-12 17:56:43,197 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-10-12 17:56:43,197 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-10-12 17:56:43,197 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-10-12 17:56:43,197 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-10-12 17:56:43,198 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-10-12 17:56:43,198 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-10-12 17:56:43,198 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-10-12 17:56:43,198 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-10-12 17:56:43,198 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-10-12 17:56:43,198 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-10-12 17:56:43,198 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-10-12 17:56:43,199 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-10-12 17:56:43,199 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-10-12 17:56:43,199 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-10-12 17:56:43,199 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-10-12 17:56:43,199 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-10-12 17:56:43,199 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-10-12 17:56:43,200 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-10-12 17:56:43,200 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-10-12 17:56:43,200 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-10-12 17:56:44,255 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-10-12 17:56:44,256 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-10-12 17:56:44,261 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:56:44 BoogieIcfgContainer
[2020-10-12 17:56:44,261 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-10-12 17:56:44,263 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-10-12 17:56:44,263 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-10-12 17:56:44,266 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-10-12 17:56:44,266 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 05:56:42" (1/3) ...
[2020-10-12 17:56:44,267 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4245425a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:56:44, skipping insertion in model container
[2020-10-12 17:56:44,267 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:56:42" (2/3) ...
[2020-10-12 17:56:44,268 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4245425a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:56:44, skipping insertion in model container
[2020-10-12 17:56:44,268 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:56:44" (3/3) ...
[2020-10-12 17:56:44,270 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product07.cil.c
[2020-10-12 17:56:44,280 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-10-12 17:56:44,288 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-10-12 17:56:44,302 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-10-12 17:56:44,328 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-10-12 17:56:44,328 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-10-12 17:56:44,328 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-10-12 17:56:44,329 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-10-12 17:56:44,329 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-10-12 17:56:44,329 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-10-12 17:56:44,329 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-10-12 17:56:44,330 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-10-12 17:56:44,353 INFO  L276                IsEmpty]: Start isEmpty. Operand 154 states.
[2020-10-12 17:56:44,363 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2020-10-12 17:56:44,363 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-12 17:56:44,364 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]
[2020-10-12 17:56:44,365 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-12 17:56:44,370 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-12 17:56:44,370 INFO  L82        PathProgramCache]: Analyzing trace with hash -1046284201, now seen corresponding path program 1 times
[2020-10-12 17:56:44,379 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-12 17:56:44,379 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1362548084]
[2020-10-12 17:56:44,380 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-12 17:56:44,655 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:56:44,807 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:56:44,909 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:56:45,674 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:56:47,114 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:56:47,115 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 84
[2020-10-12 17:56:47,116 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-10-12 17:56:47,122 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2452
[2020-10-12 17:56:47,127 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:56:47,127 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-10-12 17:56:47,128 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-12 17:56:47,129 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 67
[2020-10-12 17:56:47,129 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 7
[2020-10-12 17:56:47,749 WARN  L193               SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-10-12 17:56:47,750 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-12 17:56:47,773 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:56:47,788 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:56:47,901 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:56:47,902 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:56:47,902 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:56:47,902 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 126
[2020-10-12 17:56:47,902 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:56:47,903 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:56:47,908 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:56:47,908 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-10-12 17:56:47,909 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 6
[2020-10-12 17:56:47,945 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-10-12 17:56:47,947 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:56:47,948 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:56:47,952 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:56:47,952 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 17:56:47,953 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:56:47,953 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-10-12 17:56:47,953 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:56:47,954 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:56:47,954 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:56:47,955 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-12 17:56:47,955 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 17:56:47,957 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-10-12 17:56:47,959 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:56:47,960 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:56:47,963 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:56:47,964 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 17:56:47,964 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:56:47,964 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-10-12 17:56:47,965 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:56:47,965 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:56:47,966 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:56:47,966 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-12 17:56:47,966 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 17:56:47,969 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-10-12 17:56:47,971 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:56:47,973 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:56:47,978 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:56:47,978 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:56:47,979 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:56:47,979 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-10-12 17:56:47,980 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:56:47,980 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:56:47,980 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:56:47,981 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-12 17:56:47,981 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 17:56:47,984 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-10-12 17:56:47,986 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:56:47,988 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:56:47,990 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:56:47,990 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 17:56:47,990 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:56:47,990 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-12 17:56:47,992 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:56:47,992 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:56:47,992 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:56:47,993 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-12 17:56:47,993 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 17:56:47,997 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2020-10-12 17:56:47,999 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:56:48,001 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:56:48,009 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:56:48,009 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:56:48,009 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:56:48,009 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-10-12 17:56:48,010 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:56:48,010 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:56:48,010 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:56:48,010 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-12 17:56:48,010 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:56:48,018 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2020-10-12 17:56:48,020 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:56:48,021 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:56:48,030 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:56:48,030 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:56:48,031 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:56:48,031 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-10-12 17:56:48,031 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:56:48,032 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-10-12 17:56:48,032 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:56:48,032 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-12 17:56:48,033 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 17:56:48,057 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44
[2020-10-12 17:56:48,059 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:56:48,060 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:56:48,062 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:56:48,062 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:56:48,063 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:56:48,063 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-12 17:56:48,063 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:56:48,063 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 17:56:48,064 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-12 17:56:48,064 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 17:56:48,064 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-12 17:56:48,089 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-12 17:56:48,090 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1362548084]
[2020-10-12 17:56:48,093 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-12 17:56:48,093 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-10-12 17:56:48,094 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556645381]
[2020-10-12 17:56:48,102 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-10-12 17:56:48,102 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-12 17:56:48,122 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-10-12 17:56:48,124 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2020-10-12 17:56:48,127 INFO  L87              Difference]: Start difference. First operand 154 states. Second operand 8 states.
[2020-10-12 17:56:48,776 WARN  L193               SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-10-12 17:56:50,078 WARN  L193               SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-10-12 17:56:50,485 WARN  L193               SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-10-12 17:56:50,745 WARN  L193               SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-10-12 17:56:51,294 WARN  L193               SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-10-12 17:56:51,597 WARN  L193               SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-10-12 17:56:52,618 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-12 17:56:52,618 INFO  L93              Difference]: Finished difference Result 370 states and 514 transitions.
[2020-10-12 17:56:52,619 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2020-10-12 17:56:52,621 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 52
[2020-10-12 17:56:52,621 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-12 17:56:52,635 INFO  L225             Difference]: With dead ends: 370
[2020-10-12 17:56:52,636 INFO  L226             Difference]: Without dead ends: 221
[2020-10-12 17:56:52,641 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182
[2020-10-12 17:56:52,658 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 221 states.
[2020-10-12 17:56:52,747 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 182.
[2020-10-12 17:56:52,749 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 182 states.
[2020-10-12 17:56:52,751 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 220 transitions.
[2020-10-12 17:56:52,757 INFO  L78                 Accepts]: Start accepts. Automaton has 182 states and 220 transitions. Word has length 52
[2020-10-12 17:56:52,757 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-12 17:56:52,758 INFO  L479      AbstractCegarLoop]: Abstraction has 182 states and 220 transitions.
[2020-10-12 17:56:52,758 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-10-12 17:56:52,758 INFO  L276                IsEmpty]: Start isEmpty. Operand 182 states and 220 transitions.
[2020-10-12 17:56:52,762 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 62
[2020-10-12 17:56:52,762 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-12 17:56:52,763 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]
[2020-10-12 17:56:52,763 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-10-12 17:56:52,763 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-12 17:56:52,764 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-12 17:56:52,764 INFO  L82        PathProgramCache]: Analyzing trace with hash -187158361, now seen corresponding path program 1 times
[2020-10-12 17:56:52,764 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-12 17:56:52,764 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1664757561]
[2020-10-12 17:56:52,764 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-12 17:56:52,794 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:56:52,815 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:56:53,253 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:56:53,253 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 93
[2020-10-12 17:56:53,253 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:56:53,254 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 456
[2020-10-12 17:56:53,254 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:56:53,254 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-10-12 17:56:53,254 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-12 17:56:53,254 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 56
[2020-10-12 17:56:53,254 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:56:53,529 WARN  L193               SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-10-12 17:56:53,530 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-12 17:56:53,551 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:56:53,565 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:56:53,656 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:56:53,657 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:56:53,657 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:56:53,657 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 104
[2020-10-12 17:56:53,657 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:56:53,658 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:56:53,658 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:56:53,658 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-10-12 17:56:53,658 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:56:53,678 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-10-12 17:56:53,679 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:56:53,680 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:56:53,682 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:56:53,683 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 17:56:53,683 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:56:53,683 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-12 17:56:53,683 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:56:53,683 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:56:53,684 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:56:53,684 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-12 17:56:53,684 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:56:53,685 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-10-12 17:56:53,687 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:56:53,688 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:56:53,693 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:56:53,694 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 17:56:53,694 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:56:53,694 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-10-12 17:56:53,694 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:56:53,695 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:56:53,695 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:56:53,695 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-12 17:56:53,695 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:56:53,697 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-10-12 17:56:53,698 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:56:53,700 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:56:53,705 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:56:53,705 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:56:53,705 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:56:53,705 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-10-12 17:56:53,706 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:56:53,706 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:56:53,706 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:56:53,706 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-12 17:56:53,707 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:56:53,708 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2020-10-12 17:56:53,709 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:56:53,710 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:56:53,712 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:56:53,712 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-12 17:56:53,712 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:56:53,713 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-12 17:56:53,713 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:56:53,713 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:56:53,713 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:56:53,714 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-12 17:56:53,714 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:56:53,721 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2020-10-12 17:56:53,723 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:56:53,724 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:56:53,727 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:56:53,727 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:56:53,727 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:56:53,727 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-12 17:56:53,728 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:56:53,728 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-12 17:56:53,728 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-12 17:56:53,728 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-10-12 17:56:53,728 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:56:53,730 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41
[2020-10-12 17:56:53,731 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:56:53,732 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:56:53,733 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:56:53,733 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:56:53,733 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:56:53,734 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-12 17:56:53,734 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:56:53,734 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 17:56:53,734 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-12 17:56:53,735 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 17:56:53,735 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:56:53,736 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47
[2020-10-12 17:56:53,737 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:56:53,738 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:56:53,738 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:56:53,739 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:56:53,739 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:56:53,739 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-10-12 17:56:53,739 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:56:53,740 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 17:56:53,740 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-12 17:56:53,740 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 17:56:53,740 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:56:53,741 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53
[2020-10-12 17:56:53,743 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-12 17:56:53,744 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-12 17:56:53,746 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-12 17:56:53,746 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-12 17:56:53,746 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-12 17:56:53,746 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-12 17:56:53,747 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-10-12 17:56:53,747 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-12 17:56:53,747 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-12 17:56:53,747 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-12 17:56:53,747 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-12 17:56:53,756 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-12 17:56:53,757 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1664757561]
[2020-10-12 17:56:53,757 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-12 17:56:53,757 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-10-12 17:56:53,758 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368638425]
[2020-10-12 17:56:53,761 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-10-12 17:56:53,764 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-12 17:56:53,765 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-10-12 17:56:53,766 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-10-12 17:56:53,767 INFO  L87              Difference]: Start difference. First operand 182 states and 220 transitions. Second operand 5 states.
[2020-10-12 17:56:54,123 WARN  L193               SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-10-12 17:56:55,822 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-12 17:56:55,823 INFO  L93              Difference]: Finished difference Result 601 states and 798 transitions.
[2020-10-12 17:56:55,823 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-10-12 17:56:55,823 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 61
[2020-10-12 17:56:55,823 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-12 17:56:55,831 INFO  L225             Difference]: With dead ends: 601
[2020-10-12 17:56:55,831 INFO  L226             Difference]: Without dead ends: 443
[2020-10-12 17:56:55,834 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-10-12 17:56:55,835 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 443 states.
[2020-10-12 17:56:55,938 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 341.
[2020-10-12 17:56:55,938 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 341 states.
[2020-10-12 17:56:55,942 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 423 transitions.
[2020-10-12 17:56:55,942 INFO  L78                 Accepts]: Start accepts. Automaton has 341 states and 423 transitions. Word has length 61
[2020-10-12 17:56:55,942 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-12 17:56:55,943 INFO  L479      AbstractCegarLoop]: Abstraction has 341 states and 423 transitions.
[2020-10-12 17:56:55,943 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-10-12 17:56:55,943 INFO  L276                IsEmpty]: Start isEmpty. Operand 341 states and 423 transitions.
[2020-10-12 17:56:55,948 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 68
[2020-10-12 17:56:55,948 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-12 17:56:55,948 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]
[2020-10-12 17:56:55,948 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-10-12 17:56:55,948 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-12 17:56:55,949 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-12 17:56:55,949 INFO  L82        PathProgramCache]: Analyzing trace with hash -1334484666, now seen corresponding path program 1 times
[2020-10-12 17:56:55,949 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-12 17:56:55,949 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [44966911]
[2020-10-12 17:56:55,950 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-12 17:56:55,989 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-10-12 17:56:55,992 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-10-12 17:56:55,992 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-10-12 17:56:55,996 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-10-12 17:56:56,022 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 05:56:56 BoogieIcfgContainer
[2020-10-12 17:56:56,023 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-10-12 17:56:56,024 INFO  L168              Benchmark]: Toolchain (without parser) took 13683.70 ms. Allocated memory was 139.5 MB in the beginning and 410.0 MB in the end (delta: 270.5 MB). Free memory was 102.0 MB in the beginning and 251.7 MB in the end (delta: -149.7 MB). Peak memory consumption was 120.8 MB. Max. memory is 7.1 GB.
[2020-10-12 17:56:56,025 INFO  L168              Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-10-12 17:56:56,028 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 635.97 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 101.8 MB in the beginning and 170.9 MB in the end (delta: -69.1 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB.
[2020-10-12 17:56:56,029 INFO  L168              Benchmark]: Boogie Preprocessor took 121.11 ms. Allocated memory is still 202.9 MB. Free memory was 170.9 MB in the beginning and 166.4 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB.
[2020-10-12 17:56:56,031 INFO  L168              Benchmark]: RCFGBuilder took 1161.54 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 166.4 MB in the beginning and 199.0 MB in the end (delta: -32.6 MB). Peak memory consumption was 83.9 MB. Max. memory is 7.1 GB.
[2020-10-12 17:56:56,037 INFO  L168              Benchmark]: TraceAbstraction took 11760.22 ms. Allocated memory was 235.4 MB in the beginning and 410.0 MB in the end (delta: 174.6 MB). Free memory was 199.0 MB in the beginning and 251.7 MB in the end (delta: -52.7 MB). Peak memory consumption was 121.9 MB. Max. memory is 7.1 GB.
[2020-10-12 17:56:56,047 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 635.97 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 101.8 MB in the beginning and 170.9 MB in the end (delta: -69.1 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 121.11 ms. Allocated memory is still 202.9 MB. Free memory was 170.9 MB in the beginning and 166.4 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1161.54 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 166.4 MB in the beginning and 199.0 MB in the end (delta: -32.6 MB). Peak memory consumption was 83.9 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 11760.22 ms. Allocated memory was 235.4 MB in the beginning and 410.0 MB in the end (delta: 174.6 MB). Free memory was 199.0 MB in the beginning and 251.7 MB in the end (delta: -52.7 MB). Peak memory consumption was 121.9 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L87]               int cleanupTimeShifts  =    4;
[L357]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L596]              int pumpRunning  =    0;
[L597]              int systemActive  =    1;
[L811]              int waterLevel  =    1;
[L812]              int methaneLevelCritical  =    0;
[L165]              int retValue_acc ;
[L166]              int tmp ;
[L170]  FCALL       select_helpers()
[L171]  FCALL       select_features()
[L172]  CALL, EXPR  valid_product()
[L78]               int retValue_acc ;
[L81]               retValue_acc = 1
[L82]               return (retValue_acc);
[L172]  RET, EXPR   valid_product()
[L172]              tmp = valid_product()
[L174]  COND TRUE   \read(tmp)
[L176]  FCALL       setup()
[L177]  CALL        runTest()
[L159]  CALL        test()
[L745]              int splverifierCounter ;
[L746]              int tmp ;
[L747]              int tmp___0 ;
[L748]              int tmp___1 ;
[L749]              int tmp___2 ;
[L752]              splverifierCounter = 0
[L754]  COND TRUE   1
[L756]  COND TRUE   splverifierCounter < 4
[L762]              tmp = __VERIFIER_nondet_int()
[L764]  COND TRUE   \read(tmp)
[L766]  CALL        waterRise()
[L829]  COND TRUE   waterLevel < 2
[L830]              waterLevel = waterLevel + 1
[L766]  RET         waterRise()
[L772]              tmp___0 = __VERIFIER_nondet_int()
[L774]  COND FALSE  !(\read(tmp___0))
[L782]              tmp___2 = __VERIFIER_nondet_int()
[L784]  COND FALSE  !(\read(tmp___2))
[L788]              tmp___1 = __VERIFIER_nondet_int()
[L790]  COND TRUE   \read(tmp___1)
[L792]  CALL        stopSystem()
[L732]  COND FALSE  !(\read(pumpRunning))
[L739]              systemActive = 0
[L792]  RET         stopSystem()
[L799]  CALL        timeShift()
[L603]  COND FALSE  !(\read(pumpRunning))
[L610]  COND FALSE  !(\read(systemActive))
[L618]  CALL        __utac_acc__Specification3_spec__1()
[L558]              int tmp ;
[L559]              int tmp___0 ;
[L560]              int tmp___1 ;
[L564]  CALL, EXPR  isMethaneLevelCritical()
[L850]              int retValue_acc ;
[L853]              retValue_acc = methaneLevelCritical
[L854]              return (retValue_acc);
[L564]  RET, EXPR   isMethaneLevelCritical()
[L564]              tmp = isMethaneLevelCritical()
[L566]  COND FALSE  !(\read(tmp))
[L570]  CALL, EXPR  getWaterLevel()
[L882]              int retValue_acc ;
[L885]              retValue_acc = waterLevel
[L886]              return (retValue_acc);
[L570]  RET, EXPR   getWaterLevel()
[L570]              tmp___0 = getWaterLevel()
[L572]  COND TRUE   tmp___0 == 2
[L574]  CALL, EXPR  isPumpRunning()
[L684]              int retValue_acc ;
[L687]              retValue_acc = pumpRunning
[L688]              return (retValue_acc);
[L574]  RET, EXPR   isPumpRunning()
[L574]              tmp___1 = isPumpRunning()
[L576]  COND FALSE  !(\read(tmp___1))
[L580]  CALL        __automaton_fail()
[L44]               __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 36 procedures, 213 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 6.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 249 SDtfs, 570 SDslu, 228 SDs, 0 SdLazy, 993 SolverSat, 369 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=341occurred 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: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 141 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 111 ConstructedInterpolants, 0 QuantifiedInterpolants, 34173 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...