/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product28.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 23:35:37,986 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 23:35:37,990 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 23:35:38,016 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 23:35:38,017 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 23:35:38,018 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 23:35:38,019 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 23:35:38,021 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 23:35:38,023 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 23:35:38,024 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 23:35:38,025 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 23:35:38,026 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 23:35:38,027 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 23:35:38,028 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 23:35:38,029 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 23:35:38,030 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 23:35:38,031 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 23:35:38,032 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 23:35:38,034 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 23:35:38,036 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 23:35:38,037 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 23:35:38,038 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 23:35:38,040 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 23:35:38,041 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 23:35:38,046 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 23:35:38,046 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 23:35:38,046 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 23:35:38,047 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 23:35:38,048 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 23:35:38,049 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 23:35:38,049 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 23:35:38,050 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 23:35:38,051 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 23:35:38,052 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 23:35:38,053 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 23:35:38,053 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 23:35:38,054 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 23:35:38,055 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 23:35:38,055 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 23:35:38,056 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 23:35:38,057 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 23:35:38,058 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-24 23:35:38,085 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 23:35:38,085 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 23:35:38,087 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 23:35:38,087 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 23:35:38,087 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 23:35:38,087 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 23:35:38,088 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 23:35:38,088 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 23:35:38,088 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 23:35:38,088 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 23:35:38,088 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 23:35:38,088 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 23:35:38,089 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 23:35:38,089 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 23:35:38,089 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 23:35:38,089 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 23:35:38,089 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 23:35:38,090 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 23:35:38,090 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 23:35:38,090 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 23:35:38,090 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 23:35:38,091 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 23:35:38,091 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 23:35:38,091 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 23:35:38,091 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 23:35:38,091 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 23:35:38,091 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 23:35:38,092 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 23:35:38,092 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 23:35:38,092 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;
[2020-09-24 23:35:38,561 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 23:35:38,578 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 23:35:38,583 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 23:35:38,585 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 23:35:38,585 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 23:35:38,586 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product28.cil.c
[2020-09-24 23:35:38,670 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bf0bd2047/f3fab97cc7514f00850853528c1d928e/FLAGd6570118e
[2020-09-24 23:35:39,304 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 23:35:39,305 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product28.cil.c
[2020-09-24 23:35:39,322 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bf0bd2047/f3fab97cc7514f00850853528c1d928e/FLAGd6570118e
[2020-09-24 23:35:39,575 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bf0bd2047/f3fab97cc7514f00850853528c1d928e
[2020-09-24 23:35:39,589 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 23:35:39,595 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 23:35:39,598 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 23:35:39,599 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 23:35:39,604 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 23:35:39,605 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:35:39" (1/1) ...
[2020-09-24 23:35:39,610 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5db1276a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:39, skipping insertion in model container
[2020-09-24 23:35:39,610 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:35:39" (1/1) ...
[2020-09-24 23:35:39,621 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 23:35:39,705 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 23:35:40,051 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 23:35:40,073 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 23:35:40,318 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 23:35:40,370 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 23:35:40,371 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:40 WrapperNode
[2020-09-24 23:35:40,372 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 23:35:40,373 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 23:35:40,373 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 23:35:40,373 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 23:35:40,392 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:40" (1/1) ...
[2020-09-24 23:35:40,394 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:40" (1/1) ...
[2020-09-24 23:35:40,438 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:40" (1/1) ...
[2020-09-24 23:35:40,439 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:40" (1/1) ...
[2020-09-24 23:35:40,473 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:40" (1/1) ...
[2020-09-24 23:35:40,485 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:40" (1/1) ...
[2020-09-24 23:35:40,490 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:40" (1/1) ...
[2020-09-24 23:35:40,499 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 23:35:40,499 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 23:35:40,500 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 23:35:40,500 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 23:35:40,501 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:40" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 23:35:40,583 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 23:35:40,583 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 23:35:40,583 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 23:35:40,583 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 23:35:40,584 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 23:35:40,584 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 23:35:40,584 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 23:35:40,584 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 23:35:40,584 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 23:35:40,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 23:35:40,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor
[2020-09-24 23:35:40,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 23:35:40,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 23:35:40,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 23:35:40,586 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 23:35:40,586 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 23:35:40,586 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-24 23:35:40,586 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-24 23:35:40,586 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-24 23:35:40,587 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 23:35:40,587 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 23:35:40,587 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 23:35:40,587 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 23:35:40,588 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 23:35:40,588 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 23:35:40,588 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 23:35:40,588 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-24 23:35:40,588 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 23:35:40,589 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 23:35:40,589 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 23:35:40,589 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 23:35:40,589 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 23:35:40,589 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 23:35:40,589 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-24 23:35:40,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 23:35:40,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 23:35:40,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 23:35:40,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 23:35:40,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 23:35:40,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 23:35:40,591 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 23:35:40,591 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 23:35:40,591 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 23:35:40,591 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 23:35:40,591 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 23:35:40,592 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 23:35:40,592 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 23:35:40,592 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 23:35:40,592 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 23:35:40,592 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 23:35:40,592 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-24 23:35:40,593 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 23:35:40,593 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 23:35:40,593 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 23:35:40,593 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 23:35:40,593 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 23:35:40,593 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-24 23:35:40,594 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-24 23:35:40,594 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-24 23:35:40,594 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 23:35:40,594 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 23:35:40,594 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-24 23:35:40,594 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor
[2020-09-24 23:35:40,595 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 23:35:40,595 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 23:35:40,595 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 23:35:40,595 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 23:35:40,595 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 23:35:40,595 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 23:35:40,596 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 23:35:40,596 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 23:35:40,596 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 23:35:40,596 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 23:35:40,596 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 23:35:40,596 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 23:35:40,597 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 23:35:40,597 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 23:35:40,597 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 23:35:40,597 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 23:35:40,597 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 23:35:40,598 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 23:35:40,598 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 23:35:40,598 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 23:35:40,598 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 23:35:40,598 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 23:35:40,598 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 23:35:40,598 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 23:35:40,599 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 23:35:40,599 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 23:35:40,599 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 23:35:40,599 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 23:35:40,599 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 23:35:40,599 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 23:35:40,600 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 23:35:41,909 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 23:35:41,910 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 23:35:41,918 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:35:41 BoogieIcfgContainer
[2020-09-24 23:35:41,918 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 23:35:41,922 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 23:35:41,922 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 23:35:41,926 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 23:35:41,926 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:35:39" (1/3) ...
[2020-09-24 23:35:41,927 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27eb35fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:35:41, skipping insertion in model container
[2020-09-24 23:35:41,927 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:40" (2/3) ...
[2020-09-24 23:35:41,928 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27eb35fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:35:41, skipping insertion in model container
[2020-09-24 23:35:41,928 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:35:41" (3/3) ...
[2020-09-24 23:35:41,930 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product28.cil.c
[2020-09-24 23:35:41,943 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 23:35:41,956 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 23:35:41,980 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 23:35:42,024 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 23:35:42,024 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 23:35:42,025 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 23:35:42,025 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 23:35:42,025 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 23:35:42,026 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 23:35:42,026 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 23:35:42,026 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 23:35:42,056 INFO  L276                IsEmpty]: Start isEmpty. Operand 312 states.
[2020-09-24 23:35:42,074 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-24 23:35:42,074 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 23:35:42,076 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 23:35:42,077 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 23:35:42,084 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 23:35:42,085 INFO  L82        PathProgramCache]: Analyzing trace with hash 1905765184, now seen corresponding path program 1 times
[2020-09-24 23:35:42,096 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 23:35:42,096 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [202415495]
[2020-09-24 23:35:42,097 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 23:35:42,443 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:42,573 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:42,798 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:44,320 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:47,452 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:47,452 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-24 23:35:47,453 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 23:35:47,453 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4999
[2020-09-24 23:35:47,457 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:47,457 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-24 23:35:47,458 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-24 23:35:47,459 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 62
[2020-09-24 23:35:47,459 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-09-24 23:35:47,893 WARN  L193               SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 23:35:47,896 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 23:35:47,937 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:47,979 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:48,212 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:48,213 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 23:35:48,213 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:48,213 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 274
[2020-09-24 23:35:48,214 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:48,214 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:35:48,214 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:48,214 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-24 23:35:48,214 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:35:48,306 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 23:35:48,308 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:48,310 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:48,321 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:48,321 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 23:35:48,321 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:48,322 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-24 23:35:48,322 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:48,322 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:35:48,322 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:48,323 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 23:35:48,323 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:35:48,325 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 23:35:48,326 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:48,327 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:48,330 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:48,331 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 23:35:48,331 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:48,331 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 23:35:48,331 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:48,332 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:35:48,332 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:48,332 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 23:35:48,332 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:35:48,334 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 23:35:48,336 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:48,339 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:48,346 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:48,347 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 23:35:48,347 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:48,347 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 23:35:48,348 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:48,348 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:35:48,348 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:48,348 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 23:35:48,348 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:35:48,352 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 23:35:48,354 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:48,356 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:48,360 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:48,360 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 23:35:48,360 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:48,361 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 23:35:48,361 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:48,361 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:35:48,361 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:48,362 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 23:35:48,362 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:35:48,364 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 23:35:48,365 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:48,366 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:48,373 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:48,374 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 23:35:48,374 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:48,374 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 23:35:48,375 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:48,375 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 23:35:48,375 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 23:35:48,375 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 23:35:48,376 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:35:48,377 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 23:35:48,378 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:48,380 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:48,382 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:48,383 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 23:35:48,383 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:48,383 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 23:35:48,383 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:48,384 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 23:35:48,384 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 23:35:48,384 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 23:35:48,384 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 23:35:48,386 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-24 23:35:48,388 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:48,389 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:48,391 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:48,391 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 23:35:48,392 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:48,392 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 23:35:48,392 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:48,392 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 23:35:48,393 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 23:35:48,393 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 23:35:48,393 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:35:48,431 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 23:35:48,432 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [202415495]
[2020-09-24 23:35:48,434 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 23:35:48,435 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-24 23:35:48,436 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018561077]
[2020-09-24 23:35:48,444 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-24 23:35:48,444 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 23:35:48,497 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-24 23:35:48,498 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-24 23:35:48,501 INFO  L87              Difference]: Start difference. First operand 312 states. Second operand 4 states.
[2020-09-24 23:35:49,066 WARN  L193               SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 23:35:51,305 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 23:35:51,306 INFO  L93              Difference]: Finished difference Result 623 states and 756 transitions.
[2020-09-24 23:35:51,315 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-09-24 23:35:51,316 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 153
[2020-09-24 23:35:51,317 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 23:35:51,339 INFO  L225             Difference]: With dead ends: 623
[2020-09-24 23:35:51,340 INFO  L226             Difference]: Without dead ends: 438
[2020-09-24 23:35:51,347 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-24 23:35:51,372 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 438 states.
[2020-09-24 23:35:51,500 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 370.
[2020-09-24 23:35:51,502 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 370 states.
[2020-09-24 23:35:51,504 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 411 transitions.
[2020-09-24 23:35:51,507 INFO  L78                 Accepts]: Start accepts. Automaton has 370 states and 411 transitions. Word has length 153
[2020-09-24 23:35:51,508 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 23:35:51,508 INFO  L479      AbstractCegarLoop]: Abstraction has 370 states and 411 transitions.
[2020-09-24 23:35:51,508 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-24 23:35:51,509 INFO  L276                IsEmpty]: Start isEmpty. Operand 370 states and 411 transitions.
[2020-09-24 23:35:51,513 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 163
[2020-09-24 23:35:51,514 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 23:35:51,514 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]
[2020-09-24 23:35:51,514 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 23:35:51,515 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 23:35:51,515 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 23:35:51,515 INFO  L82        PathProgramCache]: Analyzing trace with hash -451969796, now seen corresponding path program 1 times
[2020-09-24 23:35:51,515 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 23:35:51,516 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1621477301]
[2020-09-24 23:35:51,516 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 23:35:51,576 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:51,635 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:51,865 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:54,713 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:54,713 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 199
[2020-09-24 23:35:54,713 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 23:35:54,714 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3134
[2020-09-24 23:35:54,714 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:54,714 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 23:35:54,714 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 79
[2020-09-24 23:35:54,714 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 104
[2020-09-24 23:35:54,715 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:35:55,091 WARN  L193               SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 23:35:55,092 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 23:35:55,126 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:55,163 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:55,373 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:55,374 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 23:35:55,374 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:55,374 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 244
[2020-09-24 23:35:55,374 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:55,374 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:35:55,375 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:55,375 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-24 23:35:55,375 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:35:55,417 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 23:35:55,418 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:55,420 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:55,423 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:55,423 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 23:35:55,424 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:55,424 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 23:35:55,424 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:55,424 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:35:55,424 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:55,425 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 23:35:55,425 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:35:55,427 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 23:35:55,428 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:55,430 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:55,432 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:55,432 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 23:35:55,432 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:55,433 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 23:35:55,433 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:55,433 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:35:55,433 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:55,434 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 23:35:55,434 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:35:55,436 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 23:35:55,437 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:55,439 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:55,446 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:55,446 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 23:35:55,447 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:55,447 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 23:35:55,447 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:55,447 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:35:55,447 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:55,448 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 23:35:55,448 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:35:55,450 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 23:35:55,451 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:55,453 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:55,457 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:55,457 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 23:35:55,457 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:55,457 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 23:35:55,458 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:55,458 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:35:55,458 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:55,458 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 23:35:55,459 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:35:55,475 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2020-09-24 23:35:55,476 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:55,478 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:55,482 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:55,483 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-24 23:35:55,483 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:55,483 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 23:35:55,484 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:55,484 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:35:55,484 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:55,484 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-09-24 23:35:55,484 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:35:55,487 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 23:35:55,487 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:55,488 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:55,489 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:55,490 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 23:35:55,490 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:55,490 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 23:35:55,490 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:55,491 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 23:35:55,491 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:55,491 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 23:35:55,491 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:35:55,493 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130
[2020-09-24 23:35:55,494 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:55,496 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:55,500 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:55,500 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 23:35:55,500 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:55,501 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 23:35:55,501 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:55,501 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:35:55,501 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:55,501 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 23:35:55,503 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 23:35:55,505 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-24 23:35:55,506 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:55,509 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:55,518 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:55,518 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 23:35:55,518 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:55,518 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-24 23:35:55,519 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:55,519 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 23:35:55,519 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:55,519 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 23:35:55,519 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:35:55,564 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-24 23:35:55,565 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:55,566 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:55,568 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:55,568 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 23:35:55,568 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:55,568 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 23:35:55,569 FATAL L256   erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:55,569 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 23:35:55,569 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 23:35:55,569 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 23:35:55,569 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:35:55,606 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 23:35:55,606 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1621477301]
[2020-09-24 23:35:55,607 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 23:35:55,607 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2020-09-24 23:35:55,607 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628646619]
[2020-09-24 23:35:55,609 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-09-24 23:35:55,610 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 23:35:55,610 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-09-24 23:35:55,610 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90
[2020-09-24 23:35:55,611 INFO  L87              Difference]: Start difference. First operand 370 states and 411 transitions. Second operand 10 states.
[2020-09-24 23:35:56,199 WARN  L193               SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 23:35:58,082 WARN  L193               SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 23:35:58,755 WARN  L193               SmtUtils]: Spent 600.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192
[2020-09-24 23:35:59,134 WARN  L193               SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 23:35:59,490 WARN  L193               SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-24 23:35:59,831 WARN  L193               SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 23:36:00,408 WARN  L193               SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 23:36:00,736 WARN  L193               SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 192
[2020-09-24 23:36:01,156 WARN  L193               SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 23:36:02,537 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 23:36:02,538 INFO  L93              Difference]: Finished difference Result 1089 states and 1408 transitions.
[2020-09-24 23:36:02,539 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2020-09-24 23:36:02,539 INFO  L78                 Accepts]: Start accepts. Automaton has 10 states. Word has length 162
[2020-09-24 23:36:02,540 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 23:36:02,549 INFO  L225             Difference]: With dead ends: 1089
[2020-09-24 23:36:02,549 INFO  L226             Difference]: Without dead ends: 782
[2020-09-24 23:36:02,555 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380
[2020-09-24 23:36:02,557 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 782 states.
[2020-09-24 23:36:02,660 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 603.
[2020-09-24 23:36:02,660 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 603 states.
[2020-09-24 23:36:02,664 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 687 transitions.
[2020-09-24 23:36:02,665 INFO  L78                 Accepts]: Start accepts. Automaton has 603 states and 687 transitions. Word has length 162
[2020-09-24 23:36:02,665 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 23:36:02,665 INFO  L479      AbstractCegarLoop]: Abstraction has 603 states and 687 transitions.
[2020-09-24 23:36:02,666 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-09-24 23:36:02,666 INFO  L276                IsEmpty]: Start isEmpty. Operand 603 states and 687 transitions.
[2020-09-24 23:36:02,670 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 178
[2020-09-24 23:36:02,670 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 23:36:02,670 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]
[2020-09-24 23:36:02,671 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 23:36:02,671 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 23:36:02,671 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 23:36:02,671 INFO  L82        PathProgramCache]: Analyzing trace with hash 525017164, now seen corresponding path program 1 times
[2020-09-24 23:36:02,672 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 23:36:02,672 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [306341737]
[2020-09-24 23:36:02,672 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 23:36:02,735 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-24 23:36:02,743 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-24 23:36:02,743 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 23:36:02,749 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 23:36:02,777 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 11:36:02 BoogieIcfgContainer
[2020-09-24 23:36:02,777 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 23:36:02,780 INFO  L168              Benchmark]: Toolchain (without parser) took 23188.65 ms. Allocated memory was 138.9 MB in the beginning and 523.2 MB in the end (delta: 384.3 MB). Free memory was 100.4 MB in the beginning and 351.7 MB in the end (delta: -251.3 MB). Peak memory consumption was 133.0 MB. Max. memory is 7.1 GB.
[2020-09-24 23:36:02,780 INFO  L168              Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 138.9 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-24 23:36:02,781 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 774.11 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 99.7 MB in the beginning and 172.2 MB in the end (delta: -72.5 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB.
[2020-09-24 23:36:02,782 INFO  L168              Benchmark]: Boogie Preprocessor took 126.33 ms. Allocated memory is still 203.4 MB. Free memory was 172.2 MB in the beginning and 168.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB.
[2020-09-24 23:36:02,783 INFO  L168              Benchmark]: RCFGBuilder took 1418.72 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 168.0 MB in the beginning and 177.8 MB in the end (delta: -9.8 MB). Peak memory consumption was 86.3 MB. Max. memory is 7.1 GB.
[2020-09-24 23:36:02,784 INFO  L168              Benchmark]: TraceAbstraction took 20855.53 ms. Allocated memory was 234.9 MB in the beginning and 523.2 MB in the end (delta: 288.4 MB). Free memory was 177.8 MB in the beginning and 351.7 MB in the end (delta: -173.9 MB). Peak memory consumption was 114.5 MB. Max. memory is 7.1 GB.
[2020-09-24 23:36:02,788 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.26 ms. Allocated memory is still 138.9 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 774.11 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 99.7 MB in the beginning and 172.2 MB in the end (delta: -72.5 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 126.33 ms. Allocated memory is still 203.4 MB. Free memory was 172.2 MB in the beginning and 168.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1418.72 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 168.0 MB in the beginning and 177.8 MB in the end (delta: -9.8 MB). Peak memory consumption was 86.3 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 20855.53 ms. Allocated memory was 234.9 MB in the beginning and 523.2 MB in the end (delta: 288.4 MB). Free memory was 177.8 MB in the beginning and 351.7 MB in the end (delta: -173.9 MB). Peak memory consumption was 114.5 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 545]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L89]               int pumpRunning  =    0;
[L90]               int systemActive  =    1;
[L356]              int waterLevel  =    1;
[L357]              int methaneLevelCritical  =    0;
[L445]              int cleanupTimeShifts  =    4;
[L753]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L518]              int retValue_acc ;
[L519]              int tmp ;
[L523]  FCALL       select_helpers()
[L524]  FCALL       select_features()
[L525]  CALL, EXPR  valid_product()
[L69]               int retValue_acc ;
[L72]               retValue_acc = 1
[L73]               return (retValue_acc);
[L525]  RET, EXPR   valid_product()
[L525]              tmp = valid_product()
[L527]  COND TRUE   \read(tmp)
[L529]  FCALL       setup()
[L530]  CALL        runTest()
[L512]  CALL        test()
[L287]              int splverifierCounter ;
[L288]              int tmp ;
[L289]              int tmp___0 ;
[L290]              int tmp___1 ;
[L291]              int tmp___2 ;
[L294]              splverifierCounter = 0
[L296]  COND TRUE   1
[L298]  COND TRUE   splverifierCounter < 4
[L304]              tmp = __VERIFIER_nondet_int()
[L306]  COND TRUE   \read(tmp)
[L308]  CALL        waterRise()
[L374]  COND TRUE   waterLevel < 2
[L375]              waterLevel = waterLevel + 1
[L308]  RET         waterRise()
[L314]              tmp___0 = __VERIFIER_nondet_int()
[L316]  COND FALSE  !(\read(tmp___0))
[L324]              tmp___2 = __VERIFIER_nondet_int()
[L326]  COND FALSE  !(\read(tmp___2))
[L332]              tmp___1 = __VERIFIER_nondet_int()
[L334]  COND TRUE   \read(tmp___1)
[L336]  CALL        stopSystem()
[L263]  COND FALSE  !(\read(pumpRunning))
[L270]              systemActive = 0
[L336]  RET         stopSystem()
[L343]  CALL        timeShift()
[L97]   COND FALSE  !(\read(pumpRunning))
[L104]  COND FALSE  !(\read(systemActive))
[L112]  CALL        __utac_acc__Specification3_spec__1()
[L551]              int tmp ;
[L552]              int tmp___0 ;
[L553]              int tmp___1 ;
[L557]  CALL, EXPR  isMethaneLevelCritical()
[L395]              int retValue_acc ;
[L398]              retValue_acc = methaneLevelCritical
[L399]              return (retValue_acc);
[L557]  RET, EXPR   isMethaneLevelCritical()
[L557]              tmp = isMethaneLevelCritical()
[L559]  COND FALSE  !(\read(tmp))
[L563]  CALL, EXPR  getWaterLevel()
[L427]              int retValue_acc ;
[L430]              retValue_acc = waterLevel
[L431]              return (retValue_acc);
[L563]  RET, EXPR   getWaterLevel()
[L563]              tmp___0 = getWaterLevel()
[L565]  COND TRUE   tmp___0 == 2
[L567]  CALL, EXPR  isPumpRunning()
[L196]              int retValue_acc ;
[L199]              retValue_acc = pumpRunning
[L200]              return (retValue_acc);
[L567]  RET, EXPR   isPumpRunning()
[L567]              tmp___1 = isPumpRunning()
[L569]  COND FALSE  !(\read(tmp___1))
[L573]  CALL        __automaton_fail()
[L545]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 40 procedures, 628 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 20.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 9.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 485 SDtfs, 948 SDslu, 814 SDs, 0 SdLazy, 1857 SolverSat, 325 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=603occurred 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, 247 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 9.9s InterpolantComputationTime, 492 NumberOfCodeBlocks, 492 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 313 ConstructedInterpolants, 0 QuantifiedInterpolants, 140665 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...