/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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_product05.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 10:55:44,874 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 10:55:44,881 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 10:55:44,925 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 10:55:44,926 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 10:55:44,934 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 10:55:44,937 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 10:55:44,941 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 10:55:44,944 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 10:55:44,947 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 10:55:44,947 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 10:55:44,948 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 10:55:44,949 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 10:55:44,951 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 10:55:44,954 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 10:55:44,957 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 10:55:44,958 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 10:55:44,959 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 10:55:44,961 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 10:55:44,969 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 10:55:44,972 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 10:55:44,973 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 10:55:44,974 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 10:55:44,975 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 10:55:44,991 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 10:55:44,991 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 10:55:44,991 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 10:55:44,992 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 10:55:44,996 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 10:55:44,997 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 10:55:44,997 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 10:55:44,998 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 10:55:45,001 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 10:55:45,002 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 10:55:45,003 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 10:55:45,004 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 10:55:45,004 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 10:55:45,005 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 10:55:45,005 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 10:55:45,006 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 10:55:45,007 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 10:55:45,007 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-25 10:55:45,032 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 10:55:45,032 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 10:55:45,033 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 10:55:45,034 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 10:55:45,034 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 10:55:45,034 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 10:55:45,034 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 10:55:45,035 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 10:55:45,035 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 10:55:45,035 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 10:55:45,035 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 10:55:45,035 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 10:55:45,035 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 10:55:45,036 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 10:55:45,036 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 10:55:45,036 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 10:55:45,036 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 10:55:45,037 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 10:55:45,037 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 10:55:45,037 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 10:55:45,037 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 10:55:45,037 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 10:55:45,038 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 10:55:45,038 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 10:55:45,038 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 10:55:45,038 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 10:55:45,038 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 10:55:45,039 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 10:55:45,039 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 10:55:45,039 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;
[2020-09-25 10:55:45,527 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 10:55:45,554 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 10:55:45,561 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 10:55:45,563 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 10:55:45,563 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 10:55:45,565 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product05.cil.c
[2020-09-25 10:55:45,659 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/402f81c61/2190f1ca7b564d28afb26e854c9c59dd/FLAG483131f19
[2020-09-25 10:55:46,250 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 10:55:46,251 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product05.cil.c
[2020-09-25 10:55:46,265 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/402f81c61/2190f1ca7b564d28afb26e854c9c59dd/FLAG483131f19
[2020-09-25 10:55:46,533 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/402f81c61/2190f1ca7b564d28afb26e854c9c59dd
[2020-09-25 10:55:46,548 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 10:55:46,554 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 10:55:46,555 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 10:55:46,555 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 10:55:46,561 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 10:55:46,562 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:55:46" (1/1) ...
[2020-09-25 10:55:46,568 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:46, skipping insertion in model container
[2020-09-25 10:55:46,568 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:55:46" (1/1) ...
[2020-09-25 10:55:46,578 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 10:55:46,627 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 10:55:46,963 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 10:55:46,979 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 10:55:47,167 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 10:55:47,214 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 10:55:47,216 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:47 WrapperNode
[2020-09-25 10:55:47,216 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 10:55:47,217 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 10:55:47,217 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 10:55:47,218 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 10:55:47,235 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:47" (1/1) ...
[2020-09-25 10:55:47,237 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:47" (1/1) ...
[2020-09-25 10:55:47,258 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:47" (1/1) ...
[2020-09-25 10:55:47,259 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:47" (1/1) ...
[2020-09-25 10:55:47,292 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:47" (1/1) ...
[2020-09-25 10:55:47,303 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:47" (1/1) ...
[2020-09-25 10:55:47,309 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:47" (1/1) ...
[2020-09-25 10:55:47,317 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 10:55:47,318 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 10:55:47,318 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 10:55:47,318 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 10:55:47,320 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:47" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 10:55:47,395 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 10:55:47,396 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 10:55:47,396 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 10:55:47,396 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 10:55:47,396 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 10:55:47,397 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 10:55:47,397 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 10:55:47,398 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 10:55:47,398 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 10:55:47,398 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 10:55:47,399 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 10:55:47,399 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 10:55:47,399 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 10:55:47,399 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 10:55:47,399 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 10:55:47,400 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 10:55:47,401 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 10:55:47,401 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 10:55:47,401 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 10:55:47,401 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 10:55:47,402 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 10:55:47,403 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 10:55:47,403 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 10:55:47,403 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 10:55:47,405 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 10:55:47,406 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 10:55:47,406 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 10:55:47,406 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 10:55:47,407 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 10:55:47,407 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 10:55:47,407 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 10:55:47,407 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 10:55:47,407 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 10:55:47,407 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 10:55:47,407 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 10:55:47,408 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 10:55:47,408 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 10:55:47,408 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 10:55:47,408 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 10:55:47,408 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 10:55:47,408 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 10:55:47,409 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 10:55:47,409 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 10:55:47,409 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 10:55:47,409 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 10:55:47,409 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 10:55:47,409 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 10:55:47,409 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 10:55:47,410 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 10:55:47,410 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 10:55:47,410 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 10:55:47,410 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 10:55:47,411 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 10:55:47,412 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 10:55:47,412 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 10:55:47,412 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 10:55:47,412 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 10:55:47,412 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 10:55:47,412 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 10:55:47,412 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 10:55:47,412 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 10:55:47,412 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 10:55:47,413 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 10:55:47,413 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 10:55:47,413 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 10:55:47,413 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 10:55:47,413 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 10:55:47,414 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 10:55:47,414 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 10:55:47,414 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 10:55:47,415 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 10:55:47,416 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 10:55:47,416 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 10:55:47,416 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 10:55:47,416 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 10:55:47,417 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 10:55:47,417 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 10:55:47,417 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 10:55:47,417 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 10:55:47,417 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 10:55:47,417 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 10:55:47,417 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 10:55:47,418 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 10:55:47,418 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 10:55:48,611 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 10:55:48,611 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 10:55:48,621 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:55:48 BoogieIcfgContainer
[2020-09-25 10:55:48,622 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 10:55:48,623 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 10:55:48,623 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 10:55:48,628 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 10:55:48,629 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:55:46" (1/3) ...
[2020-09-25 10:55:48,630 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e78294f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:55:48, skipping insertion in model container
[2020-09-25 10:55:48,630 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:47" (2/3) ...
[2020-09-25 10:55:48,631 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e78294f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:55:48, skipping insertion in model container
[2020-09-25 10:55:48,631 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:55:48" (3/3) ...
[2020-09-25 10:55:48,633 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product05.cil.c
[2020-09-25 10:55:48,645 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 10:55:48,656 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 10:55:48,677 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 10:55:48,710 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 10:55:48,710 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 10:55:48,710 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 10:55:48,710 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 10:55:48,711 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 10:55:48,711 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 10:55:48,711 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 10:55:48,711 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 10:55:48,741 INFO  L276                IsEmpty]: Start isEmpty. Operand 275 states.
[2020-09-25 10:55:48,759 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 10:55:48,759 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 10:55:48,760 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 10:55:48,761 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 10:55:48,767 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 10:55:48,768 INFO  L82        PathProgramCache]: Analyzing trace with hash 1745842468, now seen corresponding path program 1 times
[2020-09-25 10:55:48,778 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 10:55:48,778 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [964486]
[2020-09-25 10:55:48,779 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 10:55:49,080 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:55:49,254 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:55:49,491 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:55:49,955 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:55:53,443 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:55:53,444 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 10:55:53,445 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 10:55:53,445 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4353
[2020-09-25 10:55:53,451 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:55:53,456 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:55:53,456 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 10:55:53,457 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 81
[2020-09-25 10:55:53,457 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 89
[2020-09-25 10:55:53,457 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 11
[2020-09-25 10:55:54,086 WARN  L193               SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 10:55:54,094 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 10:55:54,170 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:55:54,256 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:55:54,505 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:55:54,505 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 10:55:54,506 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:55:54,506 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 332
[2020-09-25 10:55:54,506 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:55:54,507 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:55:54,507 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:55:54,507 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:55:54,507 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 77
[2020-09-25 10:55:54,508 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:55:54,582 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 10:55:54,584 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:55:54,587 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:55:54,591 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:55:54,592 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:55:54,592 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:55:54,592 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 10:55:54,593 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:55:54,593 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:55:54,593 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:55:54,594 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:55:54,594 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:55:54,594 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:55:54,596 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 10:55:54,597 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:55:54,600 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:55:54,605 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:55:54,605 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:55:54,605 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:55:54,606 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 10:55:54,606 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:55:54,606 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:55:54,606 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:55:54,607 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:55:54,607 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:55:54,607 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:55:54,610 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 10:55:54,611 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:55:54,619 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:55:54,628 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:55:54,628 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:55:54,629 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:55:54,629 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 16
[2020-09-25 10:55:54,629 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:55:54,629 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:55:54,630 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:55:54,630 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:55:54,630 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:55:54,630 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:55:54,633 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 10:55:54,634 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:55:54,635 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:55:54,642 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:55:54,642 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:55:54,642 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:55:54,643 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 10:55:54,643 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:55:54,643 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:55:54,643 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:55:54,644 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:55:54,644 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:55:54,644 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:55:54,646 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 10:55:54,647 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:55:54,649 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:55:54,654 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:55:54,655 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:55:54,656 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:55:54,656 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 10:55:54,656 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:55:54,657 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:55:54,657 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:55:54,657 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:55:54,657 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:55:54,658 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:55:54,660 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 10:55:54,662 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:55:54,664 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:55:54,678 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:55:54,679 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:55:54,679 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:55:54,679 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 16
[2020-09-25 10:55:54,680 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:55:54,680 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:55:54,680 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 10:55:54,680 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:55:54,681 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:55:54,681 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:55:54,715 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 10:55:54,716 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:55:54,718 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:55:54,720 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:55:54,721 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:55:54,721 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:55:54,721 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 10:55:54,721 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:55:54,722 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:55:54,722 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:55:54,722 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:55:54,722 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:55:54,722 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:55:54,756 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 10:55:54,757 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [964486]
[2020-09-25 10:55:54,759 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 10:55:54,759 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-25 10:55:54,760 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701647652]
[2020-09-25 10:55:54,768 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 10:55:54,768 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 10:55:54,786 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 10:55:54,788 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-25 10:55:54,790 INFO  L87              Difference]: Start difference. First operand 275 states. Second operand 8 states.
[2020-09-25 10:55:55,433 WARN  L193               SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 10:55:57,018 WARN  L193               SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:55:57,387 WARN  L193               SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 10:55:57,749 WARN  L193               SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:55:58,097 WARN  L193               SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 10:55:58,387 WARN  L193               SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 10:55:58,711 WARN  L193               SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:55:59,068 WARN  L193               SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:56:00,163 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 10:56:00,164 INFO  L93              Difference]: Finished difference Result 537 states and 668 transitions.
[2020-09-25 10:56:00,164 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-25 10:56:00,166 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-25 10:56:00,168 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 10:56:00,188 INFO  L225             Difference]: With dead ends: 537
[2020-09-25 10:56:00,188 INFO  L226             Difference]: Without dead ends: 373
[2020-09-25 10:56:00,195 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-25 10:56:00,219 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 373 states.
[2020-09-25 10:56:00,358 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 330.
[2020-09-25 10:56:00,359 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 330 states.
[2020-09-25 10:56:00,366 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 374 transitions.
[2020-09-25 10:56:00,368 INFO  L78                 Accepts]: Start accepts. Automaton has 330 states and 374 transitions. Word has length 153
[2020-09-25 10:56:00,372 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 10:56:00,372 INFO  L479      AbstractCegarLoop]: Abstraction has 330 states and 374 transitions.
[2020-09-25 10:56:00,372 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 10:56:00,380 INFO  L276                IsEmpty]: Start isEmpty. Operand 330 states and 374 transitions.
[2020-09-25 10:56:00,391 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 160
[2020-09-25 10:56:00,391 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 10:56:00,391 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]
[2020-09-25 10:56:00,392 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 10:56:00,392 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 10:56:00,392 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 10:56:00,392 INFO  L82        PathProgramCache]: Analyzing trace with hash -438576822, now seen corresponding path program 1 times
[2020-09-25 10:56:00,393 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 10:56:00,393 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [258087160]
[2020-09-25 10:56:00,393 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 10:56:00,451 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:00,535 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:00,631 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:00,773 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:05,378 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:05,519 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:05,519 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 194
[2020-09-25 10:56:05,520 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-25 10:56:05,520 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5035
[2020-09-25 10:56:05,520 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:05,521 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:05,521 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:05,521 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-25 10:56:05,522 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 70
[2020-09-25 10:56:05,522 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:05,960 WARN  L193               SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 10:56:05,961 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 10:56:05,997 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:06,035 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:06,247 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:06,248 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 10:56:06,248 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:06,248 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 249
[2020-09-25 10:56:06,248 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:06,249 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:06,249 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:06,249 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:06,249 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-25 10:56:06,250 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:06,296 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 10:56:06,297 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:06,300 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:06,302 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:06,302 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:56:06,303 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:06,303 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 10:56:06,303 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:06,303 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:06,303 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:06,304 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:06,304 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:56:06,304 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:06,306 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 10:56:06,306 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:06,308 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:06,311 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:06,311 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:56:06,311 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:06,312 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 10:56:06,312 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:06,312 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:06,312 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:06,312 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:06,313 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:56:06,313 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:06,314 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 10:56:06,315 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:06,317 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:06,323 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:06,324 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:06,324 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:06,324 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 10:56:06,324 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:06,325 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:06,325 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:06,325 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:06,325 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:56:06,326 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:06,328 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 10:56:06,329 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:06,330 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:06,333 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:06,333 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:56:06,333 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:06,334 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 10:56:06,334 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:06,334 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:06,334 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:06,334 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:06,335 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:56:06,335 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:06,346 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117
[2020-09-25 10:56:06,347 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:06,350 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:06,357 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:06,357 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 10:56:06,358 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:06,358 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-25 10:56:06,358 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:06,358 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:06,359 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:06,359 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:06,359 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 10:56:06,359 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:06,362 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127
[2020-09-25 10:56:06,363 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:06,364 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:06,366 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:06,366 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:06,366 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:06,367 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 10:56:06,367 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:06,367 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:06,367 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:56:06,367 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:56:06,368 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:56:06,368 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:06,369 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137
[2020-09-25 10:56:06,370 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:06,371 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:06,373 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:06,373 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:06,373 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:06,374 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 10:56:06,374 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:06,374 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:06,374 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:56:06,376 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:56:06,377 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:56:06,377 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-25 10:56:06,379 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147
[2020-09-25 10:56:06,380 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:06,381 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:06,383 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:06,384 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:06,384 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:06,384 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 10:56:06,384 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:06,384 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:06,385 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:56:06,385 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:56:06,385 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:56:06,385 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:06,421 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 10:56:06,421 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [258087160]
[2020-09-25 10:56:06,422 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 10:56:06,422 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 10:56:06,423 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823291033]
[2020-09-25 10:56:06,426 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 10:56:06,426 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 10:56:06,427 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 10:56:06,427 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-25 10:56:06,427 INFO  L87              Difference]: Start difference. First operand 330 states and 374 transitions. Second operand 5 states.
[2020-09-25 10:56:06,937 WARN  L193               SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 10:56:07,978 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 10:56:07,978 INFO  L93              Difference]: Finished difference Result 598 states and 731 transitions.
[2020-09-25 10:56:07,980 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-25 10:56:07,981 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 159
[2020-09-25 10:56:07,981 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 10:56:07,986 INFO  L225             Difference]: With dead ends: 598
[2020-09-25 10:56:07,986 INFO  L226             Difference]: Without dead ends: 378
[2020-09-25 10:56:07,990 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-09-25 10:56:07,991 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 378 states.
[2020-09-25 10:56:08,045 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 328.
[2020-09-25 10:56:08,045 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 328 states.
[2020-09-25 10:56:08,047 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 368 transitions.
[2020-09-25 10:56:08,048 INFO  L78                 Accepts]: Start accepts. Automaton has 328 states and 368 transitions. Word has length 159
[2020-09-25 10:56:08,049 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 10:56:08,049 INFO  L479      AbstractCegarLoop]: Abstraction has 328 states and 368 transitions.
[2020-09-25 10:56:08,049 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 10:56:08,049 INFO  L276                IsEmpty]: Start isEmpty. Operand 328 states and 368 transitions.
[2020-09-25 10:56:08,053 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 177
[2020-09-25 10:56:08,053 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 10:56:08,053 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]
[2020-09-25 10:56:08,054 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 10:56:08,054 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 10:56:08,054 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 10:56:08,054 INFO  L82        PathProgramCache]: Analyzing trace with hash -481228589, now seen corresponding path program 1 times
[2020-09-25 10:56:08,055 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 10:56:08,055 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1393000005]
[2020-09-25 10:56:08,055 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 10:56:08,117 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 10:56:08,125 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 10:56:08,125 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 10:56:08,131 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 10:56:08,158 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 10:56:08 BoogieIcfgContainer
[2020-09-25 10:56:08,158 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 10:56:08,161 INFO  L168              Benchmark]: Toolchain (without parser) took 21610.38 ms. Allocated memory was 144.2 MB in the beginning and 491.3 MB in the end (delta: 347.1 MB). Free memory was 101.2 MB in the beginning and 340.3 MB in the end (delta: -239.2 MB). Peak memory consumption was 107.9 MB. Max. memory is 7.1 GB.
[2020-09-25 10:56:08,162 INFO  L168              Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 144.2 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-09-25 10:56:08,163 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 662.17 ms. Allocated memory was 144.2 MB in the beginning and 203.4 MB in the end (delta: 59.2 MB). Free memory was 100.5 MB in the beginning and 173.9 MB in the end (delta: -73.4 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB.
[2020-09-25 10:56:08,163 INFO  L168              Benchmark]: Boogie Preprocessor took 99.98 ms. Allocated memory is still 203.4 MB. Free memory was 173.9 MB in the beginning and 169.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB.
[2020-09-25 10:56:08,164 INFO  L168              Benchmark]: RCFGBuilder took 1304.20 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 169.7 MB in the beginning and 184.1 MB in the end (delta: -14.4 MB). Peak memory consumption was 87.4 MB. Max. memory is 7.1 GB.
[2020-09-25 10:56:08,165 INFO  L168              Benchmark]: TraceAbstraction took 19535.32 ms. Allocated memory was 235.4 MB in the beginning and 491.3 MB in the end (delta: 255.9 MB). Free memory was 184.1 MB in the beginning and 340.3 MB in the end (delta: -156.2 MB). Peak memory consumption was 99.6 MB. Max. memory is 7.1 GB.
[2020-09-25 10:56:08,169 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.28 ms. Allocated memory is still 144.2 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 662.17 ms. Allocated memory was 144.2 MB in the beginning and 203.4 MB in the end (delta: 59.2 MB). Free memory was 100.5 MB in the beginning and 173.9 MB in the end (delta: -73.4 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 99.98 ms. Allocated memory is still 203.4 MB. Free memory was 173.9 MB in the beginning and 169.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1304.20 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 169.7 MB in the beginning and 184.1 MB in the end (delta: -14.4 MB). Peak memory consumption was 87.4 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 19535.32 ms. Allocated memory was 235.4 MB in the beginning and 491.3 MB in the end (delta: 255.9 MB). Free memory was 184.1 MB in the beginning and 340.3 MB in the end (delta: -156.2 MB). Peak memory consumption was 99.6 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 82]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L95]               int pumpRunning  =    0;
[L96]               int systemActive  =    1;
[L297]              int cleanupTimeShifts  =    4;
[L562]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L760]              int waterLevel  =    1;
[L761]              int methaneLevelCritical  =    0;
[L370]              int retValue_acc ;
[L371]              int tmp ;
[L375]  FCALL       select_helpers()
[L376]  FCALL       select_features()
[L377]  CALL, EXPR  valid_product()
[L69]               int retValue_acc ;
[L72]               retValue_acc = 1
[L73]               return (retValue_acc);
[L377]  RET, EXPR   valid_product()
[L377]              tmp = valid_product()
[L379]  COND TRUE   \read(tmp)
[L381]  FCALL       setup()
[L382]  CALL        runTest()
[L364]  CALL        test()
[L233]              int splverifierCounter ;
[L234]              int tmp ;
[L235]              int tmp___0 ;
[L236]              int tmp___1 ;
[L237]              int tmp___2 ;
[L240]              splverifierCounter = 0
[L242]  COND TRUE   1
[L244]  COND TRUE   splverifierCounter < 4
[L250]              tmp = __VERIFIER_nondet_int()
[L252]  COND TRUE   \read(tmp)
[L254]  CALL        waterRise()
[L778]  COND TRUE   waterLevel < 2
[L779]              waterLevel = waterLevel + 1
[L254]  RET         waterRise()
[L260]              tmp___0 = __VERIFIER_nondet_int()
[L262]  COND FALSE  !(\read(tmp___0))
[L270]              tmp___2 = __VERIFIER_nondet_int()
[L272]  COND TRUE   \read(tmp___2)
[L285]  CALL        timeShift()
[L103]  COND FALSE  !(\read(pumpRunning))
[L110]  COND TRUE   \read(systemActive)
[L112]  CALL        processEnvironment()
[L132]              int tmp ;
[L135]  COND FALSE  !(\read(pumpRunning))
[L150]  FCALL       processEnvironment__wrappee__base()
[L112]  RET         processEnvironment()
[L118]  CALL        __utac_acc__Specification3_spec__1()
[L841]              int tmp ;
[L842]              int tmp___0 ;
[L843]              int tmp___1 ;
[L847]  CALL, EXPR  isMethaneLevelCritical()
[L799]              int retValue_acc ;
[L802]              retValue_acc = methaneLevelCritical
[L803]              return (retValue_acc);
[L847]  RET, EXPR   isMethaneLevelCritical()
[L847]              tmp = isMethaneLevelCritical()
[L849]  COND FALSE  !(\read(tmp))
[L853]  CALL, EXPR  getWaterLevel()
[L831]              int retValue_acc ;
[L834]              retValue_acc = waterLevel
[L835]              return (retValue_acc);
[L853]  RET, EXPR   getWaterLevel()
[L853]              tmp___0 = getWaterLevel()
[L855]  COND TRUE   tmp___0 == 2
[L857]  CALL, EXPR  isPumpRunning()
[L184]              int retValue_acc ;
[L187]              retValue_acc = pumpRunning
[L188]              return (retValue_acc);
[L857]  RET, EXPR   isPumpRunning()
[L857]              tmp___1 = isPumpRunning()
[L859]  COND FALSE  !(\read(tmp___1))
[L863]  CALL        __automaton_fail()
[L82]               __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 35 procedures, 590 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 19.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 6.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 436 SDtfs, 694 SDslu, 688 SDs, 0 SdLazy, 1294 SolverSat, 213 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=330occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 93 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 11.5s InterpolantComputationTime, 488 NumberOfCodeBlocks, 488 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 310 ConstructedInterpolants, 0 QuantifiedInterpolants, 129842 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...