/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product24.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 02:58:54,946 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 02:58:54,951 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 02:58:54,997 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 02:58:54,998 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 02:58:55,006 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 02:58:55,009 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 02:58:55,013 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 02:58:55,016 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 02:58:55,019 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 02:58:55,020 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 02:58:55,021 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 02:58:55,021 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 02:58:55,024 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 02:58:55,027 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 02:58:55,029 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 02:58:55,031 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 02:58:55,032 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 02:58:55,035 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 02:58:55,045 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 02:58:55,047 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 02:58:55,049 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 02:58:55,050 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 02:58:55,051 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 02:58:55,063 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 02:58:55,070 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 02:58:55,070 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 02:58:55,071 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 02:58:55,072 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 02:58:55,073 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 02:58:55,073 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 02:58:55,074 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 02:58:55,075 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 02:58:55,076 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 02:58:55,077 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 02:58:55,077 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 02:58:55,078 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 02:58:55,078 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 02:58:55,078 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 02:58:55,079 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 02:58:55,080 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 02:58:55,081 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-25 02:58:55,107 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 02:58:55,107 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 02:58:55,109 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 02:58:55,109 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 02:58:55,109 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 02:58:55,110 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 02:58:55,110 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 02:58:55,110 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 02:58:55,110 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 02:58:55,110 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 02:58:55,111 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 02:58:55,111 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 02:58:55,111 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 02:58:55,111 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 02:58:55,111 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 02:58:55,112 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 02:58:55,112 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 02:58:55,112 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 02:58:55,112 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 02:58:55,113 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 02:58:55,113 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 02:58:55,113 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 02:58:55,113 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 02:58:55,113 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 02:58:55,114 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 02:58:55,114 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 02:58:55,114 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 02:58:55,114 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 02:58:55,114 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 02:58:55,115 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true;
[2020-09-25 02:58:55,614 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 02:58:55,630 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 02:58:55,635 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 02:58:55,637 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 02:58:55,637 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 02:58:55,638 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product24.cil.c
[2020-09-25 02:58:55,717 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/50e5411bd/5d304dd1e7a445beaa1fa567249c8f24/FLAGa8fed5005
[2020-09-25 02:58:56,274 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 02:58:56,275 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product24.cil.c
[2020-09-25 02:58:56,291 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/50e5411bd/5d304dd1e7a445beaa1fa567249c8f24/FLAGa8fed5005
[2020-09-25 02:58:56,547 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/50e5411bd/5d304dd1e7a445beaa1fa567249c8f24
[2020-09-25 02:58:56,560 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 02:58:56,565 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 02:58:56,566 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 02:58:56,567 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 02:58:56,572 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 02:58:56,573 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:58:56" (1/1) ...
[2020-09-25 02:58:56,578 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11cafb76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:56, skipping insertion in model container
[2020-09-25 02:58:56,578 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:58:56" (1/1) ...
[2020-09-25 02:58:56,588 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 02:58:56,663 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 02:58:57,102 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 02:58:57,120 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 02:58:57,319 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 02:58:57,360 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 02:58:57,361 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:57 WrapperNode
[2020-09-25 02:58:57,361 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 02:58:57,362 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 02:58:57,362 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 02:58:57,362 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 02:58:57,381 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:57" (1/1) ...
[2020-09-25 02:58:57,381 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:57" (1/1) ...
[2020-09-25 02:58:57,409 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:57" (1/1) ...
[2020-09-25 02:58:57,409 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:57" (1/1) ...
[2020-09-25 02:58:57,460 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:57" (1/1) ...
[2020-09-25 02:58:57,470 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:57" (1/1) ...
[2020-09-25 02:58:57,474 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:57" (1/1) ...
[2020-09-25 02:58:57,483 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 02:58:57,483 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 02:58:57,483 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 02:58:57,483 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 02:58:57,485 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:57" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 02:58:57,556 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 02:58:57,557 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 02:58:57,557 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 02:58:57,557 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 02:58:57,557 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 02:58:57,557 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 02:58:57,558 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor
[2020-09-25 02:58:57,558 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 02:58:57,558 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 02:58:57,558 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 02:58:57,558 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 02:58:57,559 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 02:58:57,559 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 02:58:57,559 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-25 02:58:57,559 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-25 02:58:57,559 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-25 02:58:57,559 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 02:58:57,560 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 02:58:57,560 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 02:58:57,560 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 02:58:57,560 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 02:58:57,560 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 02:58:57,560 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 02:58:57,561 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 02:58:57,561 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 02:58:57,561 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 02:58:57,561 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 02:58:57,561 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 02:58:57,562 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 02:58:57,562 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 02:58:57,562 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 02:58:57,562 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 02:58:57,562 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 02:58:57,562 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 02:58:57,563 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 02:58:57,563 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-25 02:58:57,563 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 02:58:57,563 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 02:58:57,563 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 02:58:57,563 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 02:58:57,563 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 02:58:57,564 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 02:58:57,564 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 02:58:57,564 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 02:58:57,564 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 02:58:57,564 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 02:58:57,564 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 02:58:57,564 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-25 02:58:57,565 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 02:58:57,565 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 02:58:57,565 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 02:58:57,565 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 02:58:57,565 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 02:58:57,565 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-25 02:58:57,566 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-25 02:58:57,566 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 02:58:57,566 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 02:58:57,566 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 02:58:57,566 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-25 02:58:57,566 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor
[2020-09-25 02:58:57,567 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 02:58:57,567 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 02:58:57,567 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 02:58:57,567 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 02:58:57,567 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 02:58:57,567 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 02:58:57,567 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 02:58:57,568 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 02:58:57,568 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 02:58:57,568 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 02:58:57,568 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 02:58:57,568 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 02:58:57,568 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 02:58:57,569 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 02:58:57,569 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 02:58:57,569 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 02:58:57,569 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 02:58:57,569 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 02:58:57,569 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 02:58:57,569 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 02:58:57,570 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 02:58:57,570 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 02:58:57,570 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 02:58:57,570 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 02:58:57,570 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 02:58:57,570 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 02:58:57,571 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 02:58:57,571 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 02:58:57,571 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 02:58:57,571 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 02:58:57,571 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 02:58:57,571 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 02:58:57,571 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 02:58:57,572 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 02:58:58,740 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 02:58:58,740 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 02:58:58,748 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:58:58 BoogieIcfgContainer
[2020-09-25 02:58:58,749 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 02:58:58,750 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 02:58:58,750 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 02:58:58,755 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 02:58:58,755 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:58:56" (1/3) ...
[2020-09-25 02:58:58,756 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc26221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:58:58, skipping insertion in model container
[2020-09-25 02:58:58,757 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:57" (2/3) ...
[2020-09-25 02:58:58,757 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc26221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:58:58, skipping insertion in model container
[2020-09-25 02:58:58,757 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:58:58" (3/3) ...
[2020-09-25 02:58:58,760 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product24.cil.c
[2020-09-25 02:58:58,774 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 02:58:58,786 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 02:58:58,811 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 02:58:58,844 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 02:58:58,845 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 02:58:58,845 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 02:58:58,845 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 02:58:58,845 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 02:58:58,845 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 02:58:58,845 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 02:58:58,845 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 02:58:58,875 INFO  L276                IsEmpty]: Start isEmpty. Operand 316 states.
[2020-09-25 02:58:58,907 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 02:58:58,908 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 02:58:58,909 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 02:58:58,910 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 02:58:58,921 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 02:58:58,921 INFO  L82        PathProgramCache]: Analyzing trace with hash -1912594641, now seen corresponding path program 1 times
[2020-09-25 02:58:58,937 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 02:58:58,937 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [719104684]
[2020-09-25 02:58:58,938 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 02:58:59,266 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:58:59,414 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:58:59,670 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:01,069 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:04,295 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:04,295 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 02:59:04,295 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 02:59:04,296 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5017
[2020-09-25 02:59:04,299 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:04,299 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 02:59:04,300 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 81
[2020-09-25 02:59:04,300 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 89
[2020-09-25 02:59:04,300 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-25 02:59:04,762 WARN  L193               SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 02:59:04,765 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 02:59:04,818 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:04,860 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:05,095 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:05,096 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 02:59:05,096 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:05,096 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 276
[2020-09-25 02:59:05,096 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:05,097 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:59:05,097 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:59:05,097 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 77
[2020-09-25 02:59:05,097 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:59:05,163 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 02:59:05,164 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:05,166 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:05,169 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:05,169 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:59:05,170 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:05,170 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 02:59:05,170 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:05,170 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:59:05,171 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:59:05,171 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 02:59:05,171 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:59:05,173 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 02:59:05,174 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:05,175 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:05,178 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:05,178 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:59:05,179 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:05,179 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 02:59:05,179 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:05,179 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:59:05,180 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:59:05,180 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 02:59:05,180 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:59:05,182 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 02:59:05,183 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:05,185 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:05,222 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:05,222 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:59:05,223 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:05,223 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 38
[2020-09-25 02:59:05,223 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:05,223 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:59:05,224 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:59:05,224 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 02:59:05,224 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:59:05,240 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 02:59:05,242 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:05,243 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:05,248 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:05,249 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:59:05,249 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:05,249 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 02:59:05,250 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:05,250 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:59:05,250 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:59:05,250 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 02:59:05,251 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:59:05,255 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 02:59:05,256 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:05,258 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:05,262 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:05,263 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:59:05,263 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:05,263 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 02:59:05,263 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:05,263 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:59:05,264 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:59:05,264 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 02:59:05,264 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:59:05,266 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 02:59:05,268 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:05,270 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:05,280 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:05,280 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:59:05,280 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:05,281 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-25 02:59:05,281 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:05,283 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 02:59:05,283 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:59:05,283 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 02:59:05,284 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 02:59:05,319 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 02:59:05,320 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:05,321 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:05,326 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:05,326 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:59:05,326 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:05,326 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 02:59:05,327 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:05,327 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:59:05,327 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 02:59:05,327 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:59:05,328 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:59:05,370 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 02:59:05,371 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [719104684]
[2020-09-25 02:59:05,374 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 02:59:05,374 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-25 02:59:05,375 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972356306]
[2020-09-25 02:59:05,385 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 02:59:05,386 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 02:59:05,405 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 02:59:05,406 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-25 02:59:05,409 INFO  L87              Difference]: Start difference. First operand 316 states. Second operand 8 states.
[2020-09-25 02:59:06,059 WARN  L193               SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 02:59:08,033 WARN  L193               SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 02:59:08,401 WARN  L193               SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 02:59:08,798 WARN  L193               SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 02:59:09,225 WARN  L193               SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 02:59:09,575 WARN  L193               SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 02:59:09,920 WARN  L193               SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 02:59:10,210 WARN  L193               SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 02:59:11,804 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 02:59:11,804 INFO  L93              Difference]: Finished difference Result 668 states and 824 transitions.
[2020-09-25 02:59:11,805 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-25 02:59:11,807 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-25 02:59:11,808 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 02:59:11,851 INFO  L225             Difference]: With dead ends: 668
[2020-09-25 02:59:11,851 INFO  L226             Difference]: Without dead ends: 463
[2020-09-25 02:59:11,865 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-25 02:59:11,890 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 463 states.
[2020-09-25 02:59:12,014 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 414.
[2020-09-25 02:59:12,017 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 414 states.
[2020-09-25 02:59:12,021 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 473 transitions.
[2020-09-25 02:59:12,023 INFO  L78                 Accepts]: Start accepts. Automaton has 414 states and 473 transitions. Word has length 153
[2020-09-25 02:59:12,024 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 02:59:12,025 INFO  L479      AbstractCegarLoop]: Abstraction has 414 states and 473 transitions.
[2020-09-25 02:59:12,025 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 02:59:12,025 INFO  L276                IsEmpty]: Start isEmpty. Operand 414 states and 473 transitions.
[2020-09-25 02:59:12,031 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 160
[2020-09-25 02:59:12,032 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 02:59:12,032 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 02:59:12,032 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 02:59:12,033 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 02:59:12,033 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 02:59:12,033 INFO  L82        PathProgramCache]: Analyzing trace with hash -499582659, now seen corresponding path program 1 times
[2020-09-25 02:59:12,033 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 02:59:12,034 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [417409858]
[2020-09-25 02:59:12,034 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 02:59:12,092 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:12,149 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:12,252 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:12,396 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:17,137 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:17,137 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 194
[2020-09-25 02:59:17,137 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 02:59:17,138 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5041
[2020-09-25 02:59:17,138 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:17,138 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 02:59:17,138 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-25 02:59:17,138 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 70
[2020-09-25 02:59:17,139 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:59:17,462 WARN  L193               SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 02:59:17,463 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 02:59:17,502 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:17,548 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:17,818 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:17,819 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 02:59:17,819 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:17,819 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 313
[2020-09-25 02:59:17,819 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:17,820 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:59:17,820 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:59:17,820 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-25 02:59:17,820 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:59:17,878 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 02:59:17,879 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:17,882 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:17,885 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:17,886 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:59:17,886 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:17,886 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 02:59:17,886 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:17,887 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:59:17,887 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:59:17,887 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 02:59:17,887 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:59:17,889 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 02:59:17,890 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:17,891 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:17,895 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:17,895 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:59:17,895 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:17,895 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 02:59:17,896 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:17,896 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:59:17,896 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:59:17,896 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 02:59:17,896 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:59:17,898 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 02:59:17,899 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:17,901 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:17,908 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:17,908 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:59:17,909 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:17,909 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 02:59:17,909 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:17,909 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:59:17,909 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:59:17,910 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 02:59:17,910 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 02:59:17,912 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 02:59:17,913 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:17,914 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:17,917 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:17,917 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 02:59:17,918 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:17,918 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 02:59:17,918 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:17,918 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:59:17,918 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:59:17,919 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 02:59:17,919 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:59:17,927 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117
[2020-09-25 02:59:17,929 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:17,930 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:17,936 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:17,936 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 02:59:17,937 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:17,937 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 02:59:17,937 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:17,937 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 02:59:17,937 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 02:59:17,938 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 02:59:17,938 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:59:17,941 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127
[2020-09-25 02:59:17,942 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:17,943 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:17,944 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:17,944 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:59:17,945 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:17,945 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 02:59:17,945 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:17,945 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:59:17,945 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 02:59:17,946 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:59:17,946 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:59:17,947 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137
[2020-09-25 02:59:17,948 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:17,949 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:17,953 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:17,953 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:59:17,953 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:17,953 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 02:59:17,954 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:17,954 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:59:17,954 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 02:59:17,954 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:59:17,954 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:59:17,956 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147
[2020-09-25 02:59:17,957 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 02:59:17,958 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 02:59:17,960 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 02:59:17,961 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 02:59:17,961 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 02:59:17,963 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 02:59:17,964 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 02:59:17,964 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 02:59:17,964 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 02:59:17,964 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 02:59:17,964 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 02:59:18,001 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 02:59:18,002 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [417409858]
[2020-09-25 02:59:18,002 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 02:59:18,002 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-25 02:59:18,002 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273354015]
[2020-09-25 02:59:18,006 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-25 02:59:18,006 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 02:59:18,006 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-25 02:59:18,007 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-25 02:59:18,007 INFO  L87              Difference]: Start difference. First operand 414 states and 473 transitions. Second operand 6 states.
[2020-09-25 02:59:18,522 WARN  L193               SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 02:59:19,498 WARN  L193               SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 02:59:22,408 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 02:59:22,409 INFO  L93              Difference]: Finished difference Result 1289 states and 1615 transitions.
[2020-09-25 02:59:22,409 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2020-09-25 02:59:22,410 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 159
[2020-09-25 02:59:22,411 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 02:59:22,419 INFO  L225             Difference]: With dead ends: 1289
[2020-09-25 02:59:22,419 INFO  L226             Difference]: Without dead ends: 985
[2020-09-25 02:59:22,422 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90
[2020-09-25 02:59:22,424 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 985 states.
[2020-09-25 02:59:22,575 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 985 to 867.
[2020-09-25 02:59:22,575 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 867 states.
[2020-09-25 02:59:22,581 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1029 transitions.
[2020-09-25 02:59:22,582 INFO  L78                 Accepts]: Start accepts. Automaton has 867 states and 1029 transitions. Word has length 159
[2020-09-25 02:59:22,583 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 02:59:22,583 INFO  L479      AbstractCegarLoop]: Abstraction has 867 states and 1029 transitions.
[2020-09-25 02:59:22,583 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-25 02:59:22,583 INFO  L276                IsEmpty]: Start isEmpty. Operand 867 states and 1029 transitions.
[2020-09-25 02:59:22,588 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 186
[2020-09-25 02:59:22,589 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 02:59:22,589 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, 1, 1, 1, 1, 1]
[2020-09-25 02:59:22,589 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 02:59:22,590 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 02:59:22,590 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 02:59:22,590 INFO  L82        PathProgramCache]: Analyzing trace with hash 144516370, now seen corresponding path program 1 times
[2020-09-25 02:59:22,590 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 02:59:22,591 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1504418903]
[2020-09-25 02:59:22,591 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 02:59:22,654 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 02:59:22,662 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 02:59:22,662 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 02:59:22,668 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 02:59:22,709 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:59:22 BoogieIcfgContainer
[2020-09-25 02:59:22,709 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 02:59:22,711 INFO  L168              Benchmark]: Toolchain (without parser) took 26149.35 ms. Allocated memory was 138.9 MB in the beginning and 533.2 MB in the end (delta: 394.3 MB). Free memory was 101.1 MB in the beginning and 276.5 MB in the end (delta: -175.4 MB). Peak memory consumption was 218.9 MB. Max. memory is 7.1 GB.
[2020-09-25 02:59:22,712 INFO  L168              Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 02:59:22,713 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 795.34 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 100.4 MB in the beginning and 172.2 MB in the end (delta: -71.8 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB.
[2020-09-25 02:59:22,714 INFO  L168              Benchmark]: Boogie Preprocessor took 120.72 ms. Allocated memory is still 202.9 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.
[2020-09-25 02:59:22,715 INFO  L168              Benchmark]: RCFGBuilder took 1265.77 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 168.0 MB in the beginning and 177.6 MB in the end (delta: -9.6 MB). Peak memory consumption was 86.3 MB. Max. memory is 7.1 GB.
[2020-09-25 02:59:22,716 INFO  L168              Benchmark]: TraceAbstraction took 23958.85 ms. Allocated memory was 234.9 MB in the beginning and 533.2 MB in the end (delta: 298.3 MB). Free memory was 176.1 MB in the beginning and 276.5 MB in the end (delta: -100.3 MB). Peak memory consumption was 198.0 MB. Max. memory is 7.1 GB.
[2020-09-25 02:59:22,720 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.29 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 795.34 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 100.4 MB in the beginning and 172.2 MB in the end (delta: -71.8 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 120.72 ms. Allocated memory is still 202.9 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 1265.77 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 168.0 MB in the beginning and 177.6 MB in the end (delta: -9.6 MB). Peak memory consumption was 86.3 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 23958.85 ms. Allocated memory was 234.9 MB in the beginning and 533.2 MB in the end (delta: 298.3 MB). Free memory was 176.1 MB in the beginning and 276.5 MB in the end (delta: -100.3 MB). Peak memory consumption was 198.0 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: 
[L60]               int pumpRunning  =    0;
[L61]               int systemActive  =    1;
[L369]              int cleanupTimeShifts  =    4;
[L637]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L834]              int waterLevel  =    1;
[L835]              int methaneLevelCritical  =    0;
[L445]              int retValue_acc ;
[L446]              int tmp ;
[L450]  FCALL       select_helpers()
[L451]  FCALL       select_features()
[L452]  CALL, EXPR  valid_product()
[L949]              int retValue_acc ;
[L952]              retValue_acc = 1
[L953]              return (retValue_acc);
[L452]  RET, EXPR   valid_product()
[L452]              tmp = valid_product()
[L454]  COND TRUE   \read(tmp)
[L456]  FCALL       setup()
[L457]  CALL        runTest()
[L436]  CALL        test()
[L266]              int splverifierCounter ;
[L267]              int tmp ;
[L268]              int tmp___0 ;
[L269]              int tmp___1 ;
[L270]              int tmp___2 ;
[L273]              splverifierCounter = 0
[L275]  COND TRUE   1
[L277]  COND TRUE   splverifierCounter < 4
[L283]              tmp = __VERIFIER_nondet_int()
[L285]  COND TRUE   \read(tmp)
[L287]  CALL        waterRise()
[L852]  COND TRUE   waterLevel < 2
[L853]              waterLevel = waterLevel + 1
[L287]  RET         waterRise()
[L293]              tmp___0 = __VERIFIER_nondet_int()
[L295]  COND FALSE  !(\read(tmp___0))
[L303]              tmp___2 = __VERIFIER_nondet_int()
[L305]  COND TRUE   \read(tmp___2)
[L307]  CALL        startSystem()
[L257]              systemActive = 1
[L307]  RET         startSystem()
[L322]  CALL        timeShift()
[L68]   COND FALSE  !(\read(pumpRunning))
[L75]   COND TRUE   \read(systemActive)
[L77]   CALL        processEnvironment()
[L123]              int tmp ;
[L126]  COND FALSE  !(\read(pumpRunning))
[L141]  CALL        processEnvironment__wrappee__lowWaterSensor()
[L97]               int tmp ;
[L100]  COND FALSE  !(\read(pumpRunning))
[L115]  FCALL       processEnvironment__wrappee__base()
[L141]  RET         processEnvironment__wrappee__lowWaterSensor()
[L77]   RET         processEnvironment()
[L83]   CALL        __utac_acc__Specification3_spec__1()
[L336]              int tmp ;
[L337]              int tmp___0 ;
[L338]              int tmp___1 ;
[L342]  CALL, EXPR  isMethaneLevelCritical()
[L873]              int retValue_acc ;
[L876]              retValue_acc = methaneLevelCritical
[L877]              return (retValue_acc);
[L342]  RET, EXPR   isMethaneLevelCritical()
[L342]              tmp = isMethaneLevelCritical()
[L344]  COND FALSE  !(\read(tmp))
[L348]  CALL, EXPR  getWaterLevel()
[L905]              int retValue_acc ;
[L908]              retValue_acc = waterLevel
[L909]              return (retValue_acc);
[L348]  RET, EXPR   getWaterLevel()
[L348]              tmp___0 = getWaterLevel()
[L350]  COND TRUE   tmp___0 == 2
[L352]  CALL, EXPR  isPumpRunning()
[L175]              int retValue_acc ;
[L178]              retValue_acc = pumpRunning
[L179]              return (retValue_acc);
[L352]  RET, EXPR   isPumpRunning()
[L352]              tmp___1 = isPumpRunning()
[L354]  COND FALSE  !(\read(tmp___1))
[L358]  CALL        __automaton_fail()
[L44]               __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 40 procedures, 631 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 23.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 10.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 565 SDtfs, 1144 SDslu, 928 SDs, 0 SdLazy, 2106 SolverSat, 430 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=867occurred 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, 167 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 11.9s InterpolantComputationTime, 497 NumberOfCodeBlocks, 497 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 310 ConstructedInterpolants, 0 QuantifiedInterpolants, 134266 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...