/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=0.4 --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_product16.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 13:11:01,921 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 13:11:01,926 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 13:11:01,972 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 13:11:01,972 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 13:11:01,984 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 13:11:01,986 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 13:11:01,990 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 13:11:01,994 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 13:11:01,996 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 13:11:01,997 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 13:11:01,998 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 13:11:01,999 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 13:11:02,000 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 13:11:02,001 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 13:11:02,002 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 13:11:02,003 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 13:11:02,004 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 13:11:02,006 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 13:11:02,007 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 13:11:02,009 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 13:11:02,010 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 13:11:02,011 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 13:11:02,012 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 13:11:02,015 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 13:11:02,015 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 13:11:02,015 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 13:11:02,017 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 13:11:02,017 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 13:11:02,018 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 13:11:02,019 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 13:11:02,020 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 13:11:02,021 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 13:11:02,022 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 13:11:02,023 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 13:11:02,023 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 13:11:02,024 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 13:11:02,025 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 13:11:02,025 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 13:11:02,026 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 13:11:02,027 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 13:11:02,028 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 13:11:02,054 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 13:11:02,054 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 13:11:02,056 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 13:11:02,056 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 13:11:02,056 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 13:11:02,056 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 13:11:02,057 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 13:11:02,057 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 13:11:02,057 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 13:11:02,057 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 13:11:02,057 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 13:11:02,058 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 13:11:02,058 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 13:11:02,058 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 13:11:02,058 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 13:11:02,058 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 13:11:02,059 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 13:11:02,059 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 13:11:02,059 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 13:11:02,059 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 13:11:02,059 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 13:11:02,060 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 13:11:02,060 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 13:11:02,060 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 13:11:02,060 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 13:11:02,060 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 13:11:02,061 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 13:11:02,061 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 13:11:02,061 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 13:11:02,061 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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;log-additional-information=true;
[2020-09-25 13:11:02,524 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 13:11:02,554 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 13:11:02,559 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 13:11:02,562 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 13:11:02,563 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 13:11:02,565 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product16.cil.c
[2020-09-25 13:11:02,661 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5b476c200/f915a165b3a74e78afd3388bcbb483e5/FLAG56d6e10cf
[2020-09-25 13:11:03,268 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 13:11:03,269 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product16.cil.c
[2020-09-25 13:11:03,284 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5b476c200/f915a165b3a74e78afd3388bcbb483e5/FLAG56d6e10cf
[2020-09-25 13:11:03,549 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5b476c200/f915a165b3a74e78afd3388bcbb483e5
[2020-09-25 13:11:03,564 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 13:11:03,570 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 13:11:03,575 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 13:11:03,575 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 13:11:03,580 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 13:11:03,582 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:11:03" (1/1) ...
[2020-09-25 13:11:03,586 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26e5903c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:03, skipping insertion in model container
[2020-09-25 13:11:03,587 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:11:03" (1/1) ...
[2020-09-25 13:11:03,596 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 13:11:03,653 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 13:11:04,074 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 13:11:04,206 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 13:11:04,331 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 13:11:04,366 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 13:11:04,366 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:04 WrapperNode
[2020-09-25 13:11:04,366 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 13:11:04,367 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 13:11:04,367 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 13:11:04,368 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 13:11:04,383 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:04" (1/1) ...
[2020-09-25 13:11:04,384 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:04" (1/1) ...
[2020-09-25 13:11:04,405 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:04" (1/1) ...
[2020-09-25 13:11:04,406 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:04" (1/1) ...
[2020-09-25 13:11:04,445 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:04" (1/1) ...
[2020-09-25 13:11:04,458 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:04" (1/1) ...
[2020-09-25 13:11:04,464 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:04" (1/1) ...
[2020-09-25 13:11:04,472 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 13:11:04,473 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 13:11:04,473 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 13:11:04,473 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 13:11:04,474 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:04" (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 13:11:04,555 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 13:11:04,556 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 13:11:04,556 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 13:11:04,556 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 13:11:04,556 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 13:11:04,557 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 13:11:04,557 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 13:11:04,557 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 13:11:04,557 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 13:11:04,557 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 13:11:04,558 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 13:11:04,558 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 13:11:04,558 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 13:11:04,558 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 13:11:04,558 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 13:11:04,559 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 13:11:04,559 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 13:11:04,559 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery
[2020-09-25 13:11:04,559 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 13:11:04,559 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base
[2020-09-25 13:11:04,560 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 13:11:04,560 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 13:11:04,560 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 13:11:04,560 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 13:11:04,560 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 13:11:04,561 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-25 13:11:04,561 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-25 13:11:04,561 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 13:11:04,561 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 13:11:04,561 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 13:11:04,561 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 13:11:04,562 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 13:11:04,562 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 13:11:04,562 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 13:11:04,562 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 13:11:04,562 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 13:11:04,562 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 13:11:04,563 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 13:11:04,563 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 13:11:04,563 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 13:11:04,563 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 13:11:04,563 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 13:11:04,563 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 13:11:04,564 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 13:11:04,564 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 13:11:04,564 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 13:11:04,564 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 13:11:04,564 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 13:11:04,564 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 13:11:04,565 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 13:11:04,565 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 13:11:04,565 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 13:11:04,565 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 13:11:04,565 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 13:11:04,565 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 13:11:04,566 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 13:11:04,566 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 13:11:04,566 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 13:11:04,566 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 13:11:04,566 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 13:11:04,566 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 13:11:04,567 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 13:11:04,567 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 13:11:04,567 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 13:11:04,567 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 13:11:04,567 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 13:11:04,567 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 13:11:04,567 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 13:11:04,568 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 13:11:04,568 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 13:11:04,568 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 13:11:04,568 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 13:11:04,568 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-25 13:11:04,568 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-25 13:11:04,569 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 13:11:04,569 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 13:11:04,569 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 13:11:04,569 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 13:11:04,569 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 13:11:04,569 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 13:11:04,570 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 13:11:04,570 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 13:11:04,570 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery
[2020-09-25 13:11:04,570 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 13:11:04,570 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base
[2020-09-25 13:11:04,570 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 13:11:04,571 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 13:11:04,571 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 13:11:04,571 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 13:11:04,571 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 13:11:05,743 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 13:11:05,743 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 13:11:05,751 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:11:05 BoogieIcfgContainer
[2020-09-25 13:11:05,751 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 13:11:05,752 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 13:11:05,753 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 13:11:05,757 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 13:11:05,757 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:11:03" (1/3) ...
[2020-09-25 13:11:05,758 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66e2e560 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:11:05, skipping insertion in model container
[2020-09-25 13:11:05,758 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:04" (2/3) ...
[2020-09-25 13:11:05,759 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66e2e560 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:11:05, skipping insertion in model container
[2020-09-25 13:11:05,759 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:11:05" (3/3) ...
[2020-09-25 13:11:05,761 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product16.cil.c
[2020-09-25 13:11:05,773 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 13:11:05,784 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 13:11:05,808 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 13:11:05,838 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 13:11:05,838 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 13:11:05,838 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 13:11:05,838 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 13:11:05,838 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 13:11:05,838 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 13:11:05,838 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 13:11:05,838 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 13:11:05,866 INFO  L276                IsEmpty]: Start isEmpty. Operand 295 states.
[2020-09-25 13:11:05,883 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 13:11:05,884 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 13:11:05,885 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 13:11:05,886 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:11:05,893 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:11:05,894 INFO  L82        PathProgramCache]: Analyzing trace with hash -2058846521, now seen corresponding path program 1 times
[2020-09-25 13:11:05,905 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:11:05,906 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2094629758]
[2020-09-25 13:11:05,906 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:11:06,254 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:06,418 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:06,607 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:08,255 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:11,263 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:11,263 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 13:11:11,264 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 13:11:11,264 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4999
[2020-09-25 13:11:11,268 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:11,268 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:11,268 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 13:11:11,268 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 80
[2020-09-25 13:11:11,269 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 60
[2020-09-25 13:11:11,270 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-09-25 13:11:11,723 WARN  L193               SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 13:11:11,727 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 13:11:11,788 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:11,832 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:12,071 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:12,080 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 13:11:12,080 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:12,080 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 281
[2020-09-25 13:11:12,080 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:12,081 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:12,082 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:12,082 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:12,082 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 76
[2020-09-25 13:11:12,082 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:12,171 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 13:11:12,173 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:12,177 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:12,181 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:12,182 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:11:12,182 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:12,182 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 13:11:12,183 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:12,183 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:12,183 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:12,183 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:12,184 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:11:12,184 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:12,188 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 13:11:12,189 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:12,191 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:12,198 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:12,198 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:11:12,198 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:12,199 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 13:11:12,199 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:12,199 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:12,199 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:12,200 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:12,200 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:11:12,200 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:12,203 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 13:11:12,204 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:12,207 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:12,216 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:12,216 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:11:12,217 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:12,217 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-25 13:11:12,217 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:12,217 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:12,217 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:12,218 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:12,218 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 13:11:12,218 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:12,221 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 13:11:12,222 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:12,223 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:12,227 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:12,227 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:11:12,227 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:12,227 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 13:11:12,228 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:12,228 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:12,228 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:12,228 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:12,229 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:11:12,229 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:12,231 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 13:11:12,232 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:12,235 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:12,239 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:12,239 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:11:12,239 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:12,239 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 13:11:12,240 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:12,240 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:12,240 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:11:12,240 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 13:11:12,241 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:11:12,241 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:12,243 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 13:11:12,244 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:12,246 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:12,247 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:12,248 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:11:12,248 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:12,248 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 13:11:12,248 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:12,249 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:12,249 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:11:12,249 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 13:11:12,249 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:11:12,249 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:12,252 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 13:11:12,286 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:12,291 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:12,297 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:12,297 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:11:12,298 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:12,298 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 13:11:12,298 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:12,298 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:12,299 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:11:12,299 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 13:11:12,299 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:11:12,299 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:12,338 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 13:11:12,339 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2094629758]
[2020-09-25 13:11:12,341 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 13:11:12,342 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-25 13:11:12,343 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601334902]
[2020-09-25 13:11:12,353 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-25 13:11:12,353 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 13:11:12,371 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-25 13:11:12,372 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-25 13:11:12,375 INFO  L87              Difference]: Start difference. First operand 295 states. Second operand 4 states.
[2020-09-25 13:11:13,014 WARN  L193               SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 13:11:15,072 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 13:11:15,072 INFO  L93              Difference]: Finished difference Result 590 states and 723 transitions.
[2020-09-25 13:11:15,074 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-09-25 13:11:15,076 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 153
[2020-09-25 13:11:15,077 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 13:11:15,097 INFO  L225             Difference]: With dead ends: 590
[2020-09-25 13:11:15,098 INFO  L226             Difference]: Without dead ends: 416
[2020-09-25 13:11:15,103 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-25 13:11:15,124 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 416 states.
[2020-09-25 13:11:15,238 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 348.
[2020-09-25 13:11:15,240 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 348 states.
[2020-09-25 13:11:15,243 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 389 transitions.
[2020-09-25 13:11:15,246 INFO  L78                 Accepts]: Start accepts. Automaton has 348 states and 389 transitions. Word has length 153
[2020-09-25 13:11:15,246 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 13:11:15,247 INFO  L479      AbstractCegarLoop]: Abstraction has 348 states and 389 transitions.
[2020-09-25 13:11:15,247 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-25 13:11:15,247 INFO  L276                IsEmpty]: Start isEmpty. Operand 348 states and 389 transitions.
[2020-09-25 13:11:15,253 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 163
[2020-09-25 13:11:15,253 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 13:11:15,253 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]
[2020-09-25 13:11:15,254 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 13:11:15,254 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:11:15,254 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:11:15,255 INFO  L82        PathProgramCache]: Analyzing trace with hash -1765446189, now seen corresponding path program 1 times
[2020-09-25 13:11:15,255 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:11:15,255 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [811159085]
[2020-09-25 13:11:15,255 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:11:15,311 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:15,366 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:15,579 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:18,538 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:18,538 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 199
[2020-09-25 13:11:18,538 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 13:11:18,539 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3223
[2020-09-25 13:11:18,539 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:18,539 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:18,540 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 13:11:18,541 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 81
[2020-09-25 13:11:18,541 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 102
[2020-09-25 13:11:18,542 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 13:11:18,840 WARN  L193               SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 13:11:18,845 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 13:11:18,880 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:18,918 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:19,130 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:19,131 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 13:11:19,131 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:19,131 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 247
[2020-09-25 13:11:19,131 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:19,132 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:19,132 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:19,132 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:19,132 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 77
[2020-09-25 13:11:19,132 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:19,183 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 13:11:19,184 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:19,186 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:19,189 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:19,190 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:11:19,190 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:19,190 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 13:11:19,190 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:19,190 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:19,191 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:19,191 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:19,191 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:11:19,192 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:19,193 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 13:11:19,194 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:19,195 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:19,197 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:19,198 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:11:19,198 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:19,198 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 13:11:19,198 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:19,199 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:19,199 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:19,199 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:19,199 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:11:19,200 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:19,201 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 13:11:19,202 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:19,204 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:19,212 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:19,212 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:11:19,212 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:19,213 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 13:11:19,213 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:19,213 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:19,213 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:19,214 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:19,214 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 13:11:19,214 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:19,216 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 13:11:19,217 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:19,218 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:19,222 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:19,223 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:11:19,223 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:19,223 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 13:11:19,223 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:19,224 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:19,224 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:19,224 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:19,224 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 13:11:19,225 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:19,235 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2020-09-25 13:11:19,237 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:19,239 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:19,242 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:19,243 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-25 13:11:19,243 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:19,243 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 13:11:19,243 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:19,244 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:19,244 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:19,244 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:19,244 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-09-25 13:11:19,245 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:19,247 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 13:11:19,248 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:19,249 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:19,251 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:19,251 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 13:11:19,251 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:19,251 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 13:11:19,252 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:19,252 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:19,252 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:11:19,255 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:19,255 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:11:19,255 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-25 13:11:19,256 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130
[2020-09-25 13:11:19,258 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:19,267 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:19,270 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:19,271 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:11:19,271 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:19,271 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-25 13:11:19,271 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:19,271 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:19,272 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:11:19,272 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:19,272 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 13:11:19,272 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:19,276 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-25 13:11:19,279 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:19,281 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:19,287 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:19,288 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:11:19,288 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:19,288 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 13:11:19,288 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:19,288 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:19,289 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 13:11:19,289 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:11:19,289 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 13:11:19,289 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:19,325 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-25 13:11:19,326 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:11:19,327 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:11:19,329 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:11:19,330 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 13:11:19,330 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:11:19,330 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 13:11:19,330 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:11:19,330 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:11:19,331 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:11:19,331 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 13:11:19,331 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:11:19,331 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:11:19,371 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 13:11:19,372 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [811159085]
[2020-09-25 13:11:19,372 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 13:11:19,372 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-09-25 13:11:19,373 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383190439]
[2020-09-25 13:11:19,375 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-25 13:11:19,376 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 13:11:19,376 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-25 13:11:19,376 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-09-25 13:11:19,377 INFO  L87              Difference]: Start difference. First operand 348 states and 389 transitions. Second operand 9 states.
[2020-09-25 13:11:19,925 WARN  L193               SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 13:11:21,560 WARN  L193               SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-25 13:11:22,519 WARN  L193               SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188
[2020-09-25 13:11:23,193 WARN  L193               SmtUtils]: Spent 615.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190
[2020-09-25 13:11:23,525 WARN  L193               SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 13:11:23,867 WARN  L193               SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 13:11:24,178 WARN  L193               SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 13:11:24,503 WARN  L193               SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 13:11:25,666 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 13:11:25,667 INFO  L93              Difference]: Finished difference Result 1003 states and 1274 transitions.
[2020-09-25 13:11:25,668 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2020-09-25 13:11:25,668 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 162
[2020-09-25 13:11:25,669 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 13:11:25,679 INFO  L225             Difference]: With dead ends: 1003
[2020-09-25 13:11:25,679 INFO  L226             Difference]: Without dead ends: 765
[2020-09-25 13:11:25,683 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342
[2020-09-25 13:11:25,685 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 765 states.
[2020-09-25 13:11:25,797 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 581.
[2020-09-25 13:11:25,798 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 581 states.
[2020-09-25 13:11:25,802 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 673 transitions.
[2020-09-25 13:11:25,803 INFO  L78                 Accepts]: Start accepts. Automaton has 581 states and 673 transitions. Word has length 162
[2020-09-25 13:11:25,804 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 13:11:25,804 INFO  L479      AbstractCegarLoop]: Abstraction has 581 states and 673 transitions.
[2020-09-25 13:11:25,804 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-25 13:11:25,804 INFO  L276                IsEmpty]: Start isEmpty. Operand 581 states and 673 transitions.
[2020-09-25 13:11:25,809 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 181
[2020-09-25 13:11:25,810 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 13:11:25,810 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 13:11:25,810 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 13:11:25,811 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:11:25,811 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:11:25,811 INFO  L82        PathProgramCache]: Analyzing trace with hash -721477650, now seen corresponding path program 1 times
[2020-09-25 13:11:25,811 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:11:25,812 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1636270130]
[2020-09-25 13:11:25,812 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:11:25,876 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 13:11:25,884 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 13:11:25,884 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 13:11:25,890 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 13:11:25,920 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:11:25 BoogieIcfgContainer
[2020-09-25 13:11:25,920 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 13:11:25,923 INFO  L168              Benchmark]: Toolchain (without parser) took 22356.87 ms. Allocated memory was 140.0 MB in the beginning and 488.1 MB in the end (delta: 348.1 MB). Free memory was 101.4 MB in the beginning and 179.4 MB in the end (delta: -78.0 MB). Peak memory consumption was 270.1 MB. Max. memory is 7.1 GB.
[2020-09-25 13:11:25,924 INFO  L168              Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 140.0 MB. Free memory was 120.3 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 13:11:25,925 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 792.10 ms. Allocated memory was 140.0 MB in the beginning and 205.0 MB in the end (delta: 65.0 MB). Free memory was 100.7 MB in the beginning and 174.7 MB in the end (delta: -74.0 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB.
[2020-09-25 13:11:25,926 INFO  L168              Benchmark]: Boogie Preprocessor took 105.12 ms. Allocated memory is still 205.0 MB. Free memory was 174.7 MB in the beginning and 170.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
[2020-09-25 13:11:25,927 INFO  L168              Benchmark]: RCFGBuilder took 1278.40 ms. Allocated memory was 205.0 MB in the beginning and 237.5 MB in the end (delta: 32.5 MB). Free memory was 170.5 MB in the beginning and 182.2 MB in the end (delta: -11.7 MB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB.
[2020-09-25 13:11:25,928 INFO  L168              Benchmark]: TraceAbstraction took 20167.96 ms. Allocated memory was 237.5 MB in the beginning and 488.1 MB in the end (delta: 250.6 MB). Free memory was 180.8 MB in the beginning and 179.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 252.0 MB. Max. memory is 7.1 GB.
[2020-09-25 13:11:25,932 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 140.0 MB. Free memory was 120.3 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 792.10 ms. Allocated memory was 140.0 MB in the beginning and 205.0 MB in the end (delta: 65.0 MB). Free memory was 100.7 MB in the beginning and 174.7 MB in the end (delta: -74.0 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 105.12 ms. Allocated memory is still 205.0 MB. Free memory was 174.7 MB in the beginning and 170.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1278.40 ms. Allocated memory was 205.0 MB in the beginning and 237.5 MB in the end (delta: 32.5 MB). Free memory was 170.5 MB in the beginning and 182.2 MB in the end (delta: -11.7 MB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 20167.96 ms. Allocated memory was 237.5 MB in the beginning and 488.1 MB in the end (delta: 250.6 MB). Free memory was 180.8 MB in the beginning and 179.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 252.0 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: 
[L49]               int cleanupTimeShifts  =    4;
[L322]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L596]              int pumpRunning  =    0;
[L597]              int systemActive  =    1;
[L806]              int waterLevel  =    1;
[L807]              int methaneLevelCritical  =    0;
[L130]              int retValue_acc ;
[L131]              int tmp ;
[L135]  FCALL       select_helpers()
[L136]  FCALL       select_features()
[L137]  CALL, EXPR  valid_product()
[L796]              int retValue_acc ;
[L799]              retValue_acc = 1
[L800]              return (retValue_acc);
[L137]  RET, EXPR   valid_product()
[L137]              tmp = valid_product()
[L139]  COND TRUE   \read(tmp)
[L141]  FCALL       setup()
[L142]  CALL        runTest()
[L121]  CALL        test()
[L522]              int splverifierCounter ;
[L523]              int tmp ;
[L524]              int tmp___0 ;
[L525]              int tmp___1 ;
[L526]              int tmp___2 ;
[L529]              splverifierCounter = 0
[L531]  COND TRUE   1
[L533]  COND TRUE   splverifierCounter < 4
[L539]              tmp = __VERIFIER_nondet_int()
[L541]  COND TRUE   \read(tmp)
[L543]  CALL        waterRise()
[L824]  COND TRUE   waterLevel < 2
[L825]              waterLevel = waterLevel + 1
[L543]  RET         waterRise()
[L549]              tmp___0 = __VERIFIER_nondet_int()
[L551]  COND FALSE  !(\read(tmp___0))
[L559]              tmp___2 = __VERIFIER_nondet_int()
[L561]  COND TRUE   \read(tmp___2)
[L563]  CALL        startSystem()
[L765]              systemActive = 1
[L563]  RET         startSystem()
[L578]  CALL        timeShift()
[L604]  COND FALSE  !(\read(pumpRunning))
[L611]  COND TRUE   \read(systemActive)
[L613]  CALL        processEnvironment()
[L633]              int tmp ;
[L636]  COND FALSE  !(\read(pumpRunning))
[L651]  FCALL       processEnvironment__wrappee__methaneQuery()
[L613]  RET         processEnvironment()
[L619]  CALL        __utac_acc__Specification3_spec__1()
[L887]              int tmp ;
[L888]              int tmp___0 ;
[L889]              int tmp___1 ;
[L893]  CALL, EXPR  isMethaneLevelCritical()
[L845]              int retValue_acc ;
[L848]              retValue_acc = methaneLevelCritical
[L849]              return (retValue_acc);
[L893]  RET, EXPR   isMethaneLevelCritical()
[L893]              tmp = isMethaneLevelCritical()
[L895]  COND FALSE  !(\read(tmp))
[L899]  CALL, EXPR  getWaterLevel()
[L877]              int retValue_acc ;
[L880]              retValue_acc = waterLevel
[L881]              return (retValue_acc);
[L899]  RET, EXPR   getWaterLevel()
[L899]              tmp___0 = getWaterLevel()
[L901]  COND TRUE   tmp___0 == 2
[L903]  CALL, EXPR  isPumpRunning()
[L702]              int retValue_acc ;
[L705]              retValue_acc = pumpRunning
[L706]              return (retValue_acc);
[L903]  RET, EXPR   isPumpRunning()
[L903]              tmp___1 = isPumpRunning()
[L905]  COND FALSE  !(\read(tmp___1))
[L909]  CALL        __automaton_fail()
[L44]               __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 38 procedures, 609 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 20.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 9.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 490 SDtfs, 812 SDslu, 708 SDs, 0 SdLazy, 1565 SolverSat, 293 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=581occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 252 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 10.0s InterpolantComputationTime, 495 NumberOfCodeBlocks, 495 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 313 ConstructedInterpolants, 0 QuantifiedInterpolants, 133617 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...