/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=LOWLEXORDER --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_product21.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 21:21:21,012 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 21:21:21,016 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 21:21:21,047 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 21:21:21,047 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 21:21:21,048 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 21:21:21,050 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 21:21:21,052 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 21:21:21,054 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 21:21:21,055 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 21:21:21,056 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 21:21:21,058 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 21:21:21,058 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 21:21:21,059 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 21:21:21,060 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 21:21:21,062 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 21:21:21,063 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 21:21:21,064 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 21:21:21,066 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 21:21:21,069 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 21:21:21,070 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 21:21:21,072 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 21:21:21,073 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 21:21:21,074 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 21:21:21,078 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 21:21:21,078 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 21:21:21,078 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 21:21:21,080 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 21:21:21,080 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 21:21:21,082 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 21:21:21,082 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 21:21:21,083 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 21:21:21,084 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 21:21:21,090 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 21:21:21,091 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 21:21:21,092 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 21:21:21,093 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 21:21:21,093 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 21:21:21,093 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 21:21:21,094 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 21:21:21,095 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 21:21:21,096 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 21:21:21,131 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 21:21:21,131 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 21:21:21,134 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 21:21:21,135 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 21:21:21,135 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 21:21:21,136 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 21:21:21,136 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 21:21:21,136 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 21:21:21,136 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 21:21:21,136 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 21:21:21,137 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 21:21:21,137 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 21:21:21,137 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 21:21:21,137 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 21:21:21,137 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 21:21:21,138 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 21:21:21,138 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 21:21:21,138 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 21:21:21,138 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 21:21:21,139 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 21:21:21,139 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 21:21:21,139 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 21:21:21,139 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 21:21:21,139 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 21:21:21,140 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 21:21:21,140 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 21:21:21,140 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 21:21:21,140 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 21:21:21,141 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 21:21:21,142 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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;log-additional-information=true;
[2020-09-24 21:21:21,632 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 21:21:21,650 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 21:21:21,655 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 21:21:21,657 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 21:21:21,657 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 21:21:21,658 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product21.cil.c
[2020-09-24 21:21:21,752 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7fdd7e75f/017b528262774148b27c7c775279e0ad/FLAG76ecffb07
[2020-09-24 21:21:22,387 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 21:21:22,390 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product21.cil.c
[2020-09-24 21:21:22,403 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7fdd7e75f/017b528262774148b27c7c775279e0ad/FLAG76ecffb07
[2020-09-24 21:21:22,638 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7fdd7e75f/017b528262774148b27c7c775279e0ad
[2020-09-24 21:21:22,651 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 21:21:22,656 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 21:21:22,657 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 21:21:22,657 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 21:21:22,661 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 21:21:22,663 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:21:22" (1/1) ...
[2020-09-24 21:21:22,667 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56344ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:22, skipping insertion in model container
[2020-09-24 21:21:22,668 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:21:22" (1/1) ...
[2020-09-24 21:21:22,677 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 21:21:22,742 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 21:21:23,365 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 21:21:23,383 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 21:21:23,474 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 21:21:23,509 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 21:21:23,510 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:23 WrapperNode
[2020-09-24 21:21:23,510 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 21:21:23,511 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 21:21:23,511 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 21:21:23,511 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 21:21:23,526 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:23" (1/1) ...
[2020-09-24 21:21:23,526 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:23" (1/1) ...
[2020-09-24 21:21:23,548 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:23" (1/1) ...
[2020-09-24 21:21:23,549 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:23" (1/1) ...
[2020-09-24 21:21:23,586 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:23" (1/1) ...
[2020-09-24 21:21:23,599 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:23" (1/1) ...
[2020-09-24 21:21:23,604 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:23" (1/1) ...
[2020-09-24 21:21:23,613 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 21:21:23,613 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 21:21:23,613 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 21:21:23,613 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 21:21:23,615 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:23" (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 21:21:23,696 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 21:21:23,697 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 21:21:23,697 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 21:21:23,697 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 21:21:23,697 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 21:21:23,697 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 21:21:23,698 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 21:21:23,698 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 21:21:23,699 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 21:21:23,699 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 21:21:23,699 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 21:21:23,699 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor
[2020-09-24 21:21:23,700 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 21:21:23,700 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 21:21:23,700 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 21:21:23,701 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 21:21:23,701 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 21:21:23,702 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 21:21:23,702 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-24 21:21:23,702 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 21:21:23,703 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 21:21:23,703 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 21:21:23,704 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 21:21:23,704 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 21:21:23,705 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 21:21:23,706 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 21:21:23,707 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 21:21:23,707 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-24 21:21:23,707 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 21:21:23,707 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 21:21:23,707 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 21:21:23,708 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 21:21:23,708 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 21:21:23,708 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-24 21:21:23,708 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 21:21:23,708 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 21:21:23,708 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 21:21:23,709 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 21:21:23,709 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 21:21:23,710 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 21:21:23,710 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 21:21:23,710 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 21:21:23,710 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 21:21:23,710 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 21:21:23,711 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 21:21:23,711 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 21:21:23,711 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 21:21:23,711 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 21:21:23,711 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 21:21:23,711 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 21:21:23,712 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 21:21:23,712 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 21:21:23,712 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 21:21:23,713 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 21:21:23,713 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 21:21:23,713 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 21:21:23,713 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 21:21:23,713 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 21:21:23,713 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 21:21:23,714 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 21:21:23,714 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 21:21:23,714 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-24 21:21:23,714 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 21:21:23,714 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 21:21:23,714 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 21:21:23,714 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 21:21:23,715 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 21:21:23,715 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-24 21:21:23,715 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 21:21:23,715 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 21:21:23,716 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-24 21:21:23,717 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor
[2020-09-24 21:21:23,718 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 21:21:23,718 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 21:21:23,718 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 21:21:23,718 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 21:21:23,718 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 21:21:23,718 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 21:21:23,718 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 21:21:23,719 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 21:21:23,719 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 21:21:23,719 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 21:21:23,720 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 21:21:23,720 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 21:21:23,720 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 21:21:23,720 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 21:21:23,720 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 21:21:23,721 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 21:21:23,721 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 21:21:23,721 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 21:21:24,929 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 21:21:24,929 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 21:21:24,944 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:21:24 BoogieIcfgContainer
[2020-09-24 21:21:24,944 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 21:21:24,946 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 21:21:24,946 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 21:21:24,951 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 21:21:24,951 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:21:22" (1/3) ...
[2020-09-24 21:21:24,952 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d7ca72c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:21:24, skipping insertion in model container
[2020-09-24 21:21:24,953 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:23" (2/3) ...
[2020-09-24 21:21:24,954 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d7ca72c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:21:24, skipping insertion in model container
[2020-09-24 21:21:24,954 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:21:24" (3/3) ...
[2020-09-24 21:21:24,956 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product21.cil.c
[2020-09-24 21:21:24,969 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 21:21:24,984 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 21:21:25,009 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 21:21:25,054 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 21:21:25,054 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 21:21:25,054 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 21:21:25,054 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 21:21:25,054 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 21:21:25,055 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 21:21:25,055 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 21:21:25,055 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 21:21:25,097 INFO  L276                IsEmpty]: Start isEmpty. Operand 306 states.
[2020-09-24 21:21:25,131 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-24 21:21:25,131 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 21:21:25,133 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 21:21:25,135 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:21:25,144 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:21:25,144 INFO  L82        PathProgramCache]: Analyzing trace with hash 1461403982, now seen corresponding path program 1 times
[2020-09-24 21:21:25,156 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:21:25,157 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [538084907]
[2020-09-24 21:21:25,158 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:21:25,556 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:25,700 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:25,920 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:26,378 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:29,904 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:29,905 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-24 21:21:29,905 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 21:21:29,905 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4339
[2020-09-24 21:21:29,909 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:29,909 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:29,910 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 79
[2020-09-24 21:21:29,910 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 61
[2020-09-24 21:21:29,911 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-09-24 21:21:30,339 WARN  L193               SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 21:21:30,342 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:21:30,386 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:30,427 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:30,684 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:30,684 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 21:21:30,684 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:30,685 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 296
[2020-09-24 21:21:30,685 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:30,685 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:30,686 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:30,686 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-24 21:21:30,687 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:30,776 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 21:21:30,778 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:30,781 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:30,786 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:30,786 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:30,786 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:30,787 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 21:21:30,787 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:30,787 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:30,787 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:30,788 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:21:30,788 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:30,792 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 21:21:30,794 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:30,796 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:30,802 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:30,802 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:30,803 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:30,803 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 21:21:30,804 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:30,804 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:30,805 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:30,805 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:21:30,805 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:30,810 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 21:21:30,811 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:30,817 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:30,833 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:30,833 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:30,834 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:30,834 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 20
[2020-09-24 21:21:30,835 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:30,835 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:30,836 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:30,836 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:21:30,837 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:30,855 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 21:21:30,858 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:30,862 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:30,868 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:30,869 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:30,869 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:30,869 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 21:21:30,870 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:30,870 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:30,871 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:30,871 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:21:30,871 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:30,874 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 21:21:30,876 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:30,883 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:30,887 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:30,887 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:30,888 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:30,888 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 21:21:30,888 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:30,889 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:30,889 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 21:21:30,890 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:30,890 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:30,896 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 21:21:30,898 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:30,900 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:30,904 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:30,904 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:30,905 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:30,905 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 21:21:30,906 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:30,906 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:30,906 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 21:21:30,907 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:30,907 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:30,910 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-24 21:21:30,915 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:30,917 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:30,920 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:30,921 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:30,921 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:30,921 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 21:21:30,922 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:30,922 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:30,922 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 21:21:30,923 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:30,923 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:30,993 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 21:21:30,994 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [538084907]
[2020-09-24 21:21:30,997 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 21:21:30,998 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-24 21:21:30,999 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424921556]
[2020-09-24 21:21:31,013 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-24 21:21:31,014 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 21:21:31,042 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-24 21:21:31,043 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-24 21:21:31,047 INFO  L87              Difference]: Start difference. First operand 306 states. Second operand 4 states.
[2020-09-24 21:21:31,924 WARN  L193               SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 21:21:33,107 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 21:21:33,107 INFO  L93              Difference]: Finished difference Result 477 states and 570 transitions.
[2020-09-24 21:21:33,108 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-09-24 21:21:33,110 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 153
[2020-09-24 21:21:33,111 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 21:21:33,165 INFO  L225             Difference]: With dead ends: 477
[2020-09-24 21:21:33,165 INFO  L226             Difference]: Without dead ends: 296
[2020-09-24 21:21:33,175 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-24 21:21:33,198 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 296 states.
[2020-09-24 21:21:33,288 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 255.
[2020-09-24 21:21:33,289 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 255 states.
[2020-09-24 21:21:33,297 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 277 transitions.
[2020-09-24 21:21:33,301 INFO  L78                 Accepts]: Start accepts. Automaton has 255 states and 277 transitions. Word has length 153
[2020-09-24 21:21:33,302 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 21:21:33,303 INFO  L479      AbstractCegarLoop]: Abstraction has 255 states and 277 transitions.
[2020-09-24 21:21:33,305 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-24 21:21:33,305 INFO  L276                IsEmpty]: Start isEmpty. Operand 255 states and 277 transitions.
[2020-09-24 21:21:33,310 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 177
[2020-09-24 21:21:33,311 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 21:21:33,311 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 21:21:33,311 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 21:21:33,312 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:21:33,315 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:21:33,316 INFO  L82        PathProgramCache]: Analyzing trace with hash 515182839, now seen corresponding path program 1 times
[2020-09-24 21:21:33,316 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:21:33,316 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1128392192]
[2020-09-24 21:21:33,317 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:21:33,395 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:33,456 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:35,422 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:35,423 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 213
[2020-09-24 21:21:35,423 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:35,424 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2023
[2020-09-24 21:21:35,424 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:35,424 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 14
[2020-09-24 21:21:35,425 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 80
[2020-09-24 21:21:35,425 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 117
[2020-09-24 21:21:35,426 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 21:21:35,988 WARN  L193               SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 21:21:35,989 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:21:36,035 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:36,087 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:36,376 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:36,377 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 21:21:36,377 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:36,377 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 337
[2020-09-24 21:21:36,378 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:36,378 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:36,378 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:36,379 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 76
[2020-09-24 21:21:36,379 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:36,436 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 21:21:36,437 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:36,439 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:36,443 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:36,444 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:36,444 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:36,444 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 21:21:36,445 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:36,445 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:36,445 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:36,446 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:21:36,446 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:36,448 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 21:21:36,449 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:36,450 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:36,453 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:36,453 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:36,453 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:36,454 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 21:21:36,454 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:36,454 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:36,454 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:36,455 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:21:36,455 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:36,457 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 21:21:36,459 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:36,461 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:36,469 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:36,470 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:36,470 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:36,470 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-24 21:21:36,471 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:36,471 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:36,471 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:36,471 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:21:36,471 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:36,474 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 21:21:36,475 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:36,476 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:36,488 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:36,488 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:36,489 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:36,489 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-24 21:21:36,489 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:36,490 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:36,490 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:36,490 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:21:36,490 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:36,511 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127
[2020-09-24 21:21:36,513 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:36,516 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:36,520 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:36,521 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 22
[2020-09-24 21:21:36,521 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:36,521 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 21:21:36,521 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:36,522 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:36,522 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:36,522 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 18
[2020-09-24 21:21:36,522 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:36,525 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 21:21:36,526 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:36,528 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:36,530 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:36,530 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-24 21:21:36,530 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:36,531 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 21:21:36,531 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:36,531 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:36,531 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:36,532 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:36,532 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:36,533 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 21:21:36,534 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:36,535 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:36,536 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:36,537 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:21:36,537 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:36,537 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 21:21:36,537 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:36,537 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:36,538 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:36,538 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:36,538 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:36,539 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144
[2020-09-24 21:21:36,541 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:36,542 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:36,545 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:36,547 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:36,548 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:36,548 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 21:21:36,548 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:36,548 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:21:36,549 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:36,549 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:21:36,549 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:21:36,551 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154
[2020-09-24 21:21:36,552 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:36,554 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:36,561 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:36,562 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:36,562 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:36,562 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 21:21:36,565 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:36,565 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 21:21:36,565 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:21:36,565 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 21:21:36,566 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:36,595 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164
[2020-09-24 21:21:36,596 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:21:36,598 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:21:36,600 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:21:36,600 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 21:21:36,600 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:21:36,600 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 21:21:36,601 FATAL L256   erpolLogProxyWrapper]: Heuristic: LOWLEXORDER
[2020-09-24 21:21:36,601 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:21:36,601 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 21:21:36,602 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:21:36,602 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:21:36,713 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 21:21:36,714 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1128392192]
[2020-09-24 21:21:36,714 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 21:21:36,715 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-09-24 21:21:36,715 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304080124]
[2020-09-24 21:21:36,719 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-24 21:21:36,720 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 21:21:36,720 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-24 21:21:36,720 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-09-24 21:21:36,720 INFO  L87              Difference]: Start difference. First operand 255 states and 277 transitions. Second operand 9 states.
[2020-09-24 21:21:37,262 WARN  L193               SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 21:21:39,290 WARN  L193               SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 21:21:39,755 WARN  L193               SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 21:21:40,101 WARN  L193               SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 21:21:40,445 WARN  L193               SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 21:21:40,758 WARN  L193               SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 21:21:41,292 WARN  L193               SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 21:21:41,600 WARN  L193               SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 21:21:42,507 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 21:21:42,508 INFO  L93              Difference]: Finished difference Result 649 states and 811 transitions.
[2020-09-24 21:21:42,508 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2020-09-24 21:21:42,509 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 176
[2020-09-24 21:21:42,511 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 21:21:42,518 INFO  L225             Difference]: With dead ends: 649
[2020-09-24 21:21:42,518 INFO  L226             Difference]: Without dead ends: 480
[2020-09-24 21:21:42,521 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306
[2020-09-24 21:21:42,522 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 480 states.
[2020-09-24 21:21:42,600 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 387.
[2020-09-24 21:21:42,600 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 387 states.
[2020-09-24 21:21:42,603 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 433 transitions.
[2020-09-24 21:21:42,604 INFO  L78                 Accepts]: Start accepts. Automaton has 387 states and 433 transitions. Word has length 176
[2020-09-24 21:21:42,604 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 21:21:42,605 INFO  L479      AbstractCegarLoop]: Abstraction has 387 states and 433 transitions.
[2020-09-24 21:21:42,605 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-24 21:21:42,605 INFO  L276                IsEmpty]: Start isEmpty. Operand 387 states and 433 transitions.
[2020-09-24 21:21:42,608 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 182
[2020-09-24 21:21:42,608 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 21:21:42,608 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]
[2020-09-24 21:21:42,608 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 21:21:42,609 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:21:42,609 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:21:42,609 INFO  L82        PathProgramCache]: Analyzing trace with hash -342521873, now seen corresponding path program 1 times
[2020-09-24 21:21:42,609 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:21:42,610 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1104617514]
[2020-09-24 21:21:42,610 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:21:42,677 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-24 21:21:42,685 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-24 21:21:42,686 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 21:21:42,691 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 21:21:42,719 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 09:21:42 BoogieIcfgContainer
[2020-09-24 21:21:42,719 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 21:21:42,721 INFO  L168              Benchmark]: Toolchain (without parser) took 20068.86 ms. Allocated memory was 144.2 MB in the beginning and 475.5 MB in the end (delta: 331.4 MB). Free memory was 98.1 MB in the beginning and 152.7 MB in the end (delta: -54.6 MB). Peak memory consumption was 276.8 MB. Max. memory is 7.1 GB.
[2020-09-24 21:21:42,722 INFO  L168              Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 144.2 MB. Free memory was 117.6 MB in the beginning and 117.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-24 21:21:42,723 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 853.61 ms. Allocated memory was 144.2 MB in the beginning and 202.9 MB in the end (delta: 58.7 MB). Free memory was 97.5 MB in the beginning and 169.8 MB in the end (delta: -72.4 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB.
[2020-09-24 21:21:42,724 INFO  L168              Benchmark]: Boogie Preprocessor took 101.87 ms. Allocated memory is still 202.9 MB. Free memory was 169.8 MB in the beginning and 165.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
[2020-09-24 21:21:42,725 INFO  L168              Benchmark]: RCFGBuilder took 1330.93 ms. Allocated memory was 202.9 MB in the beginning and 231.7 MB in the end (delta: 28.8 MB). Free memory was 165.7 MB in the beginning and 176.4 MB in the end (delta: -10.7 MB). Peak memory consumption was 87.1 MB. Max. memory is 7.1 GB.
[2020-09-24 21:21:42,726 INFO  L168              Benchmark]: TraceAbstraction took 17773.17 ms. Allocated memory was 231.7 MB in the beginning and 475.5 MB in the end (delta: 243.8 MB). Free memory was 176.4 MB in the beginning and 152.7 MB in the end (delta: 23.7 MB). Peak memory consumption was 267.5 MB. Max. memory is 7.1 GB.
[2020-09-24 21:21:42,730 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.28 ms. Allocated memory is still 144.2 MB. Free memory was 117.6 MB in the beginning and 117.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 853.61 ms. Allocated memory was 144.2 MB in the beginning and 202.9 MB in the end (delta: 58.7 MB). Free memory was 97.5 MB in the beginning and 169.8 MB in the end (delta: -72.4 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 101.87 ms. Allocated memory is still 202.9 MB. Free memory was 169.8 MB in the beginning and 165.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1330.93 ms. Allocated memory was 202.9 MB in the beginning and 231.7 MB in the end (delta: 28.8 MB). Free memory was 165.7 MB in the beginning and 176.4 MB in the end (delta: -10.7 MB). Peak memory consumption was 87.1 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 17773.17 ms. Allocated memory was 231.7 MB in the beginning and 475.5 MB in the end (delta: 243.8 MB). Free memory was 176.4 MB in the beginning and 152.7 MB in the end (delta: 23.7 MB). Peak memory consumption was 267.5 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 598]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L209]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L415]              int pumpRunning  =    0;
[L416]              int systemActive  =    1;
[L672]              int waterLevel  =    1;
[L673]              int methaneLevelCritical  =    0;
[L761]              int cleanupTimeShifts  =    4;
[L837]              int retValue_acc ;
[L838]              int tmp ;
[L842]  FCALL       select_helpers()
[L843]  FCALL       select_features()
[L844]  CALL, EXPR  valid_product()
[L920]              int retValue_acc ;
[L923]              retValue_acc = 1
[L924]              return (retValue_acc);
[L844]  RET, EXPR   valid_product()
[L844]              tmp = valid_product()
[L846]  COND TRUE   \read(tmp)
[L848]  FCALL       setup()
[L849]  CALL        runTest()
[L828]  CALL        test()
[L607]              int splverifierCounter ;
[L608]              int tmp ;
[L609]              int tmp___0 ;
[L610]              int tmp___1 ;
[L611]              int tmp___2 ;
[L614]              splverifierCounter = 0
[L616]  COND TRUE   1
[L618]  COND TRUE   splverifierCounter < 4
[L624]              tmp = __VERIFIER_nondet_int()
[L626]  COND TRUE   \read(tmp)
[L628]  CALL        waterRise()
[L690]  COND TRUE   waterLevel < 2
[L691]              waterLevel = waterLevel + 1
[L628]  RET         waterRise()
[L634]              tmp___0 = __VERIFIER_nondet_int()
[L636]  COND FALSE  !(\read(tmp___0))
[L644]              tmp___2 = __VERIFIER_nondet_int()
[L646]  COND TRUE   \read(tmp___2)
[L659]  CALL        timeShift()
[L423]  COND FALSE  !(\read(pumpRunning))
[L430]  COND TRUE   \read(systemActive)
[L432]  CALL        processEnvironment()
[L478]              int tmp ;
[L481]  COND FALSE  !(\read(pumpRunning))
[L496]  CALL        processEnvironment__wrappee__lowWaterSensor()
[L452]              int tmp ;
[L455]  COND FALSE  !(\read(pumpRunning))
[L470]  FCALL       processEnvironment__wrappee__base()
[L496]  RET         processEnvironment__wrappee__lowWaterSensor()
[L432]  RET         processEnvironment()
[L438]  CALL        __utac_acc__Specification3_spec__1()
[L861]              int tmp ;
[L862]              int tmp___0 ;
[L863]              int tmp___1 ;
[L867]  CALL, EXPR  isMethaneLevelCritical()
[L711]              int retValue_acc ;
[L714]              retValue_acc = methaneLevelCritical
[L715]              return (retValue_acc);
[L867]  RET, EXPR   isMethaneLevelCritical()
[L867]              tmp = isMethaneLevelCritical()
[L869]  COND FALSE  !(\read(tmp))
[L873]  CALL, EXPR  getWaterLevel()
[L743]              int retValue_acc ;
[L746]              retValue_acc = waterLevel
[L747]              return (retValue_acc);
[L873]  RET, EXPR   getWaterLevel()
[L873]              tmp___0 = getWaterLevel()
[L875]  COND TRUE   tmp___0 == 2
[L877]  CALL, EXPR  isPumpRunning()
[L530]              int retValue_acc ;
[L533]              retValue_acc = pumpRunning
[L534]              return (retValue_acc);
[L877]  RET, EXPR   isPumpRunning()
[L877]              tmp___1 = isPumpRunning()
[L879]  COND FALSE  !(\read(tmp___1))
[L883]  CALL        __automaton_fail()
[L598]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 38 procedures, 621 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 7.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 495 SDtfs, 831 SDslu, 687 SDs, 0 SdLazy, 1577 SolverSat, 281 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=387occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 134 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 8.5s InterpolantComputationTime, 510 NumberOfCodeBlocks, 510 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 327 ConstructedInterpolants, 0 QuantifiedInterpolants, 143994 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...