/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=WIDEST --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_product06.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 02:58:15,907 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 02:58:15,911 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 02:58:15,938 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 02:58:15,939 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 02:58:15,940 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 02:58:15,942 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 02:58:15,944 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 02:58:15,946 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 02:58:15,947 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 02:58:15,948 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 02:58:15,950 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 02:58:15,950 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 02:58:15,955 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 02:58:15,956 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 02:58:15,960 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 02:58:15,961 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 02:58:15,965 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 02:58:15,968 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 02:58:15,973 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 02:58:15,974 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 02:58:15,979 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 02:58:15,982 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 02:58:15,983 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 02:58:15,988 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 02:58:15,988 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 02:58:15,989 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 02:58:15,993 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 02:58:15,994 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 02:58:15,997 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 02:58:15,997 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 02:58:15,998 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 02:58:15,999 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 02:58:16,001 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 02:58:16,003 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 02:58:16,003 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 02:58:16,004 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 02:58:16,004 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 02:58:16,005 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 02:58:16,015 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 02:58:16,016 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 02:58:16,025 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 02:58:16,076 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 02:58:16,077 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 02:58:16,080 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 02:58:16,080 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 02:58:16,080 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 02:58:16,081 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 02:58:16,081 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 02:58:16,081 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 02:58:16,081 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 02:58:16,082 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 02:58:16,083 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 02:58:16,083 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 02:58:16,083 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 02:58:16,084 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 02:58:16,085 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 02:58:16,085 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 02:58:16,085 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 02:58:16,085 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 02:58:16,086 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 02:58:16,086 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 02:58:16,086 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 02:58:16,086 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 02:58:16,086 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 02:58:16,087 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 02:58:16,087 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 02:58:16,087 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 02:58:16,087 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 02:58:16,087 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 02:58:16,088 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 02:58:16,088 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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;log-additional-information=true;
[2020-09-25 02:58:16,544 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 02:58:16,564 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 02:58:16,568 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 02:58:16,570 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 02:58:16,571 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 02:58:16,572 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product06.cil.c
[2020-09-25 02:58:16,669 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b6d63bc07/e0f87f476fd34062b49b3862b2554cb2/FLAGd27b5ab89
[2020-09-25 02:58:17,251 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 02:58:17,252 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product06.cil.c
[2020-09-25 02:58:17,267 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b6d63bc07/e0f87f476fd34062b49b3862b2554cb2/FLAGd27b5ab89
[2020-09-25 02:58:17,532 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b6d63bc07/e0f87f476fd34062b49b3862b2554cb2
[2020-09-25 02:58:17,545 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 02:58:17,551 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 02:58:17,552 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 02:58:17,553 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 02:58:17,557 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 02:58:17,558 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:58:17" (1/1) ...
[2020-09-25 02:58:17,562 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22589b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:17, skipping insertion in model container
[2020-09-25 02:58:17,562 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:58:17" (1/1) ...
[2020-09-25 02:58:17,571 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 02:58:17,626 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 02:58:18,052 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 02:58:18,170 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 02:58:18,248 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 02:58:18,285 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 02:58:18,285 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:18 WrapperNode
[2020-09-25 02:58:18,286 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 02:58:18,286 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 02:58:18,287 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 02:58:18,287 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 02:58:18,304 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:18" (1/1) ...
[2020-09-25 02:58:18,305 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:18" (1/1) ...
[2020-09-25 02:58:18,325 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:18" (1/1) ...
[2020-09-25 02:58:18,325 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:18" (1/1) ...
[2020-09-25 02:58:18,359 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:18" (1/1) ...
[2020-09-25 02:58:18,370 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:18" (1/1) ...
[2020-09-25 02:58:18,378 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:18" (1/1) ...
[2020-09-25 02:58:18,398 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 02:58:18,398 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 02:58:18,399 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 02:58:18,399 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 02:58:18,402 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:18" (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 02:58:18,487 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 02:58:18,488 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 02:58:18,488 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 02:58:18,488 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 02:58:18,488 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 02:58:18,489 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 02:58:18,489 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 02:58:18,490 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 02:58:18,491 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 02:58:18,491 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 02:58:18,491 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 02:58:18,491 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 02:58:18,491 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 02:58:18,492 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 02:58:18,492 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 02:58:18,493 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 02:58:18,493 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-25 02:58:18,493 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 02:58:18,494 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 02:58:18,494 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 02:58:18,494 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 02:58:18,494 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 02:58:18,495 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 02:58:18,495 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 02:58:18,495 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 02:58:18,496 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 02:58:18,496 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 02:58:18,496 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 02:58:18,496 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 02:58:18,496 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 02:58:18,497 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 02:58:18,497 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 02:58:18,497 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 02:58:18,497 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 02:58:18,497 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 02:58:18,497 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 02:58:18,498 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 02:58:18,498 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 02:58:18,498 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 02:58:18,498 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 02:58:18,498 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 02:58:18,498 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 02:58:18,498 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 02:58:18,499 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 02:58:18,499 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 02:58:18,499 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 02:58:18,499 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 02:58:18,499 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 02:58:18,499 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 02:58:18,500 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 02:58:18,500 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 02:58:18,500 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 02:58:18,500 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-25 02:58:18,501 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 02:58:18,501 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 02:58:18,501 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 02:58:18,501 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 02:58:18,501 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 02:58:18,502 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 02:58:18,502 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 02:58:18,502 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 02:58:18,502 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 02:58:18,502 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 02:58:18,502 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 02:58:18,503 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 02:58:18,503 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 02:58:18,503 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 02:58:18,503 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 02:58:18,503 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 02:58:18,504 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 02:58:18,504 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 02:58:18,505 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 02:58:18,506 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 02:58:18,506 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 02:58:18,506 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 02:58:18,506 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 02:58:18,507 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 02:58:18,507 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 02:58:18,507 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 02:58:18,507 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 02:58:18,507 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 02:58:18,507 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 02:58:18,507 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 02:58:18,508 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 02:58:18,508 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 02:58:18,508 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 02:58:19,649 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 02:58:19,650 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 02:58:19,661 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:58:19 BoogieIcfgContainer
[2020-09-25 02:58:19,661 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 02:58:19,662 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 02:58:19,663 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 02:58:19,666 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 02:58:19,667 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:58:17" (1/3) ...
[2020-09-25 02:58:19,668 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@507adeb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:58:19, skipping insertion in model container
[2020-09-25 02:58:19,668 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:18" (2/3) ...
[2020-09-25 02:58:19,668 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@507adeb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:58:19, skipping insertion in model container
[2020-09-25 02:58:19,668 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:58:19" (3/3) ...
[2020-09-25 02:58:19,671 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product06.cil.c
[2020-09-25 02:58:19,682 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 02:58:19,694 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 02:58:19,716 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 02:58:19,746 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 02:58:19,746 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 02:58:19,746 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 02:58:19,746 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 02:58:19,746 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 02:58:19,746 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 02:58:19,747 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 02:58:19,747 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 02:58:19,773 INFO  L276                IsEmpty]: Start isEmpty. Operand 279 states.
[2020-09-25 02:58:19,790 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 02:58:19,790 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 02:58:19,792 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 02:58:19,792 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 02:58:19,798 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 02:58:19,799 INFO  L82        PathProgramCache]: Analyzing trace with hash 1857034691, now seen corresponding path program 1 times
[2020-09-25 02:58:19,809 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 02:58:19,809 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [781948477]
[2020-09-25 02:58:19,810 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 02:58:20,157 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:20,385 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:20,567 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:22,332 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:25,206 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:25,207 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 02:58:25,207 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 02:58:25,207 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5037
[2020-09-25 02:58:25,210 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:25,211 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 02:58:25,211 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 79
[2020-09-25 02:58:25,211 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 91
[2020-09-25 02:58:25,211 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-25 02:58:25,806 WARN  L193               SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 02:58:25,809 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 02:58:25,856 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:25,909 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:26,095 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:26,096 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 02:58:26,096 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:26,096 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 237
[2020-09-25 02:58:26,096 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:26,097 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:58:26,097 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:26,097 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-25 02:58:26,097 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:58:26,165 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 02:58:26,167 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:26,168 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:26,172 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:26,172 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:58:26,172 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:26,172 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 02:58:26,173 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:26,173 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:58:26,173 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:26,173 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 02:58:26,174 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:26,175 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 02:58:26,177 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:26,178 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:26,181 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:26,182 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:58:26,182 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:26,182 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 02:58:26,182 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:26,183 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:58:26,183 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:26,183 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 02:58:26,183 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:26,185 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 02:58:26,186 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:26,188 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:26,197 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:26,198 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:58:26,198 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:26,198 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 02:58:26,198 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:26,198 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:58:26,199 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:26,199 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 02:58:26,199 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:26,201 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 02:58:26,203 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:26,204 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:26,208 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:26,208 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:58:26,208 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:26,208 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 02:58:26,208 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:26,209 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:58:26,209 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:26,209 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 02:58:26,209 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:26,211 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 02:58:26,212 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:26,215 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:26,220 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:26,220 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:58:26,221 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:26,221 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 02:58:26,221 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:26,222 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:58:26,222 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:26,222 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 02:58:26,223 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:58:26,225 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 02:58:26,227 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:26,230 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:26,242 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:26,242 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:58:26,242 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:26,243 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 13
[2020-09-25 02:58:26,243 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:26,244 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 02:58:26,244 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:26,244 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 02:58:26,245 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:58:26,285 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 02:58:26,287 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:26,288 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:26,291 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:26,292 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:58:26,292 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:26,292 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 02:58:26,293 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:26,293 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:58:26,293 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 02:58:26,294 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:58:26,294 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:58:26,349 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 02:58:26,350 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [781948477]
[2020-09-25 02:58:26,353 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 02:58:26,353 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-25 02:58:26,355 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400379550]
[2020-09-25 02:58:26,362 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 02:58:26,363 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 02:58:26,386 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 02:58:26,387 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-25 02:58:26,391 INFO  L87              Difference]: Start difference. First operand 279 states. Second operand 8 states.
[2020-09-25 02:58:27,098 WARN  L193               SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 02:58:28,464 WARN  L193               SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 02:58:28,784 WARN  L193               SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 02:58:29,197 WARN  L193               SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 02:58:29,601 WARN  L193               SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 02:58:29,952 WARN  L193               SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 02:58:30,490 WARN  L193               SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 02:58:30,826 WARN  L193               SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 02:58:32,181 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 02:58:32,181 INFO  L93              Difference]: Finished difference Result 553 states and 690 transitions.
[2020-09-25 02:58:32,182 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-25 02:58:32,184 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-25 02:58:32,185 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 02:58:32,207 INFO  L225             Difference]: With dead ends: 553
[2020-09-25 02:58:32,207 INFO  L226             Difference]: Without dead ends: 368
[2020-09-25 02:58:32,214 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-25 02:58:32,236 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 368 states.
[2020-09-25 02:58:32,345 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 324.
[2020-09-25 02:58:32,347 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 324 states.
[2020-09-25 02:58:32,350 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 358 transitions.
[2020-09-25 02:58:32,353 INFO  L78                 Accepts]: Start accepts. Automaton has 324 states and 358 transitions. Word has length 153
[2020-09-25 02:58:32,354 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 02:58:32,354 INFO  L479      AbstractCegarLoop]: Abstraction has 324 states and 358 transitions.
[2020-09-25 02:58:32,354 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 02:58:32,354 INFO  L276                IsEmpty]: Start isEmpty. Operand 324 states and 358 transitions.
[2020-09-25 02:58:32,361 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 173
[2020-09-25 02:58:32,361 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 02:58:32,361 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 02:58:32,364 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 02:58:32,364 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 02:58:32,364 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 02:58:32,365 INFO  L82        PathProgramCache]: Analyzing trace with hash 243835995, now seen corresponding path program 1 times
[2020-09-25 02:58:32,365 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 02:58:32,365 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1412491514]
[2020-09-25 02:58:32,366 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 02:58:32,440 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:32,516 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:32,857 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:32,858 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 207
[2020-09-25 02:58:32,858 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:32,858 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 413
[2020-09-25 02:58:32,859 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:32,859 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:58:32,859 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 153
[2020-09-25 02:58:32,859 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-25 02:58:32,859 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:33,173 WARN  L193               SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 02:58:33,174 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 02:58:33,182 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:33,192 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:33,287 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:33,288 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 02:58:33,288 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:33,288 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 104
[2020-09-25 02:58:33,288 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:33,289 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:58:33,289 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:33,290 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:58:33,290 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:58:33,335 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 02:58:33,336 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:33,337 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:33,339 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:33,339 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:58:33,340 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:33,340 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 02:58:33,340 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:33,340 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:58:33,341 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:33,341 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:58:33,341 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:33,342 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 02:58:33,342 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:33,343 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:33,345 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:33,346 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:58:33,346 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:33,346 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 02:58:33,346 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:33,347 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:58:33,347 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:33,347 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:58:33,347 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:33,348 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 02:58:33,349 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:33,350 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:33,354 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:33,355 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:58:33,355 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:33,355 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 02:58:33,356 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:33,356 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:58:33,356 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:33,356 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:58:33,357 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:58:33,358 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 02:58:33,359 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:33,360 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:33,361 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:33,362 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:58:33,362 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:33,362 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 02:58:33,362 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:33,363 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:58:33,363 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:33,363 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:58:33,363 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:33,378 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116
[2020-09-25 02:58:33,379 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:33,380 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:33,383 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:33,383 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 02:58:33,383 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:33,384 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 02:58:33,384 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:33,384 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:58:33,384 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:33,384 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:58:33,385 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:33,396 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129
[2020-09-25 02:58:33,397 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:33,399 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:33,401 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:33,402 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 02:58:33,402 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:33,402 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 02:58:33,402 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:33,402 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:58:33,403 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:58:33,403 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-25 02:58:33,403 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:33,405 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-25 02:58:33,406 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:33,407 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:33,409 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:33,409 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:58:33,409 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:33,410 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 02:58:33,410 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:33,410 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:58:33,410 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 02:58:33,410 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:58:33,411 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:33,412 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-25 02:58:33,413 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:33,415 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:33,416 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:33,416 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:58:33,417 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:33,417 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 02:58:33,417 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:33,417 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:58:33,418 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 02:58:33,418 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:58:33,418 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:33,420 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160
[2020-09-25 02:58:33,420 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:33,422 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:33,423 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:58:33,423 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:58:33,424 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:58:33,424 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 02:58:33,424 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:58:33,424 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:58:33,425 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 02:58:33,425 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:58:33,425 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:58:33,458 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 02:58:33,459 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1412491514]
[2020-09-25 02:58:33,459 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 02:58:33,459 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-25 02:58:33,459 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737980500]
[2020-09-25 02:58:33,462 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-25 02:58:33,462 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 02:58:33,462 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-25 02:58:33,463 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-25 02:58:33,463 INFO  L87              Difference]: Start difference. First operand 324 states and 358 transitions. Second operand 6 states.
[2020-09-25 02:58:33,955 WARN  L193               SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 02:58:35,179 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 02:58:35,180 INFO  L93              Difference]: Finished difference Result 681 states and 837 transitions.
[2020-09-25 02:58:35,180 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2020-09-25 02:58:35,180 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 172
[2020-09-25 02:58:35,182 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 02:58:35,189 INFO  L225             Difference]: With dead ends: 681
[2020-09-25 02:58:35,189 INFO  L226             Difference]: Without dead ends: 467
[2020-09-25 02:58:35,192 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2020-09-25 02:58:35,193 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 467 states.
[2020-09-25 02:58:35,257 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 329.
[2020-09-25 02:58:35,257 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 329 states.
[2020-09-25 02:58:35,259 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 363 transitions.
[2020-09-25 02:58:35,260 INFO  L78                 Accepts]: Start accepts. Automaton has 329 states and 363 transitions. Word has length 172
[2020-09-25 02:58:35,261 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 02:58:35,261 INFO  L479      AbstractCegarLoop]: Abstraction has 329 states and 363 transitions.
[2020-09-25 02:58:35,261 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-25 02:58:35,261 INFO  L276                IsEmpty]: Start isEmpty. Operand 329 states and 363 transitions.
[2020-09-25 02:58:35,267 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 181
[2020-09-25 02:58:35,268 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 02:58:35,268 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 02:58:35,268 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 02:58:35,268 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 02:58:35,269 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 02:58:35,269 INFO  L82        PathProgramCache]: Analyzing trace with hash -1398687596, now seen corresponding path program 1 times
[2020-09-25 02:58:35,269 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 02:58:35,270 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [955095319]
[2020-09-25 02:58:35,270 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 02:58:35,335 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 02:58:35,343 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 02:58:35,343 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 02:58:35,349 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 02:58:35,375 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:58:35 BoogieIcfgContainer
[2020-09-25 02:58:35,375 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 02:58:35,377 INFO  L168              Benchmark]: Toolchain (without parser) took 17830.06 ms. Allocated memory was 137.9 MB in the beginning and 454.0 MB in the end (delta: 316.1 MB). Free memory was 100.0 MB in the beginning and 198.7 MB in the end (delta: -98.7 MB). Peak memory consumption was 217.5 MB. Max. memory is 7.1 GB.
[2020-09-25 02:58:35,378 INFO  L168              Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 02:58:35,379 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 733.74 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 99.4 MB in the beginning and 170.5 MB in the end (delta: -71.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB.
[2020-09-25 02:58:35,380 INFO  L168              Benchmark]: Boogie Preprocessor took 111.60 ms. Allocated memory is still 200.8 MB. Free memory was 170.5 MB in the beginning and 167.0 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB.
[2020-09-25 02:58:35,381 INFO  L168              Benchmark]: RCFGBuilder took 1262.91 ms. Allocated memory was 200.8 MB in the beginning and 231.2 MB in the end (delta: 30.4 MB). Free memory was 167.0 MB in the beginning and 180.1 MB in the end (delta: -13.1 MB). Peak memory consumption was 88.8 MB. Max. memory is 7.1 GB.
[2020-09-25 02:58:35,382 INFO  L168              Benchmark]: TraceAbstraction took 15712.49 ms. Allocated memory was 231.2 MB in the beginning and 454.0 MB in the end (delta: 222.8 MB). Free memory was 180.1 MB in the beginning and 198.7 MB in the end (delta: -18.6 MB). Peak memory consumption was 204.2 MB. Max. memory is 7.1 GB.
[2020-09-25 02:58:35,386 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 733.74 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 99.4 MB in the beginning and 170.5 MB in the end (delta: -71.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 111.60 ms. Allocated memory is still 200.8 MB. Free memory was 170.5 MB in the beginning and 167.0 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1262.91 ms. Allocated memory was 200.8 MB in the beginning and 231.2 MB in the end (delta: 30.4 MB). Free memory was 167.0 MB in the beginning and 180.1 MB in the end (delta: -13.1 MB). Peak memory consumption was 88.8 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 15712.49 ms. Allocated memory was 231.2 MB in the beginning and 454.0 MB in the end (delta: 222.8 MB). Free memory was 180.1 MB in the beginning and 198.7 MB in the end (delta: -18.6 MB). Peak memory consumption was 204.2 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: 
[L96]               int pumpRunning  =    0;
[L97]               int systemActive  =    1;
[L309]              int waterLevel  =    1;
[L310]              int methaneLevelCritical  =    0;
[L389]              int cleanupTimeShifts  =    4;
[L654]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L462]              int retValue_acc ;
[L463]              int tmp ;
[L467]  FCALL       select_helpers()
[L468]  FCALL       select_features()
[L469]  CALL, EXPR  valid_product()
[L78]               int retValue_acc ;
[L81]               retValue_acc = 1
[L82]               return (retValue_acc);
[L469]  RET, EXPR   valid_product()
[L469]              tmp = valid_product()
[L471]  COND TRUE   \read(tmp)
[L473]  FCALL       setup()
[L474]  CALL        runTest()
[L456]  CALL        test()
[L242]              int splverifierCounter ;
[L243]              int tmp ;
[L244]              int tmp___0 ;
[L245]              int tmp___1 ;
[L246]              int tmp___2 ;
[L249]              splverifierCounter = 0
[L251]  COND TRUE   1
[L253]  COND TRUE   splverifierCounter < 4
[L259]              tmp = __VERIFIER_nondet_int()
[L261]  COND TRUE   \read(tmp)
[L263]  CALL        waterRise()
[L327]  COND TRUE   waterLevel < 2
[L328]              waterLevel = waterLevel + 1
[L263]  RET         waterRise()
[L269]              tmp___0 = __VERIFIER_nondet_int()
[L271]  COND FALSE  !(\read(tmp___0))
[L279]              tmp___2 = __VERIFIER_nondet_int()
[L281]  COND TRUE   \read(tmp___2)
[L283]  CALL        startSystem()
[L233]              systemActive = 1
[L283]  RET         startSystem()
[L296]  CALL        timeShift()
[L104]  COND FALSE  !(\read(pumpRunning))
[L111]  COND TRUE   \read(systemActive)
[L113]  CALL        processEnvironment()
[L133]              int tmp ;
[L136]  COND FALSE  !(\read(pumpRunning))
[L151]  FCALL       processEnvironment__wrappee__base()
[L113]  RET         processEnvironment()
[L119]  CALL        __utac_acc__Specification3_spec__1()
[L852]              int tmp ;
[L853]              int tmp___0 ;
[L854]              int tmp___1 ;
[L858]  CALL, EXPR  isMethaneLevelCritical()
[L348]              int retValue_acc ;
[L351]              retValue_acc = methaneLevelCritical
[L352]              return (retValue_acc);
[L858]  RET, EXPR   isMethaneLevelCritical()
[L858]              tmp = isMethaneLevelCritical()
[L860]  COND FALSE  !(\read(tmp))
[L864]  CALL, EXPR  getWaterLevel()
[L380]              int retValue_acc ;
[L383]              retValue_acc = waterLevel
[L384]              return (retValue_acc);
[L864]  RET, EXPR   getWaterLevel()
[L864]              tmp___0 = getWaterLevel()
[L866]  COND TRUE   tmp___0 == 2
[L868]  CALL, EXPR  isPumpRunning()
[L185]              int retValue_acc ;
[L188]              retValue_acc = pumpRunning
[L189]              return (retValue_acc);
[L868]  RET, EXPR   isPumpRunning()
[L868]              tmp___1 = isPumpRunning()
[L870]  COND FALSE  !(\read(tmp___1))
[L874]  CALL        __automaton_fail()
[L44]               __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 36 procedures, 594 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 7.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 454 SDtfs, 879 SDslu, 730 SDs, 0 SdLazy, 1409 SolverSat, 298 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=329occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 182 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 7.1s InterpolantComputationTime, 505 NumberOfCodeBlocks, 505 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 323 ConstructedInterpolants, 0 QuantifiedInterpolants, 128440 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...