/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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_productSimulator.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 16:56:01,991 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 16:56:01,997 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 16:56:02,038 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 16:56:02,040 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 16:56:02,049 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 16:56:02,051 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 16:56:02,054 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 16:56:02,057 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 16:56:02,061 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 16:56:02,062 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 16:56:02,063 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 16:56:02,063 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 16:56:02,067 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 16:56:02,070 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 16:56:02,071 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 16:56:02,073 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 16:56:02,076 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 16:56:02,078 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 16:56:02,088 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 16:56:02,091 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 16:56:02,092 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 16:56:02,093 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 16:56:02,094 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 16:56:02,106 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 16:56:02,106 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 16:56:02,106 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 16:56:02,109 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 16:56:02,110 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 16:56:02,111 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 16:56:02,111 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 16:56:02,115 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 16:56:02,116 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 16:56:02,117 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 16:56:02,121 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 16:56:02,122 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 16:56:02,122 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 16:56:02,126 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 16:56:02,126 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 16:56:02,127 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 16:56:02,128 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 16:56:02,129 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 16:56:02,168 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 16:56:02,168 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 16:56:02,171 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 16:56:02,171 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 16:56:02,171 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 16:56:02,171 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 16:56:02,172 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 16:56:02,172 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 16:56:02,172 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 16:56:02,172 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 16:56:02,173 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 16:56:02,174 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 16:56:02,174 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 16:56:02,174 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 16:56:02,175 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 16:56:02,175 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 16:56:02,175 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 16:56:02,175 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 16:56:02,175 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 16:56:02,176 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 16:56:02,176 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 16:56:02,176 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:56:02,176 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 16:56:02,177 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 16:56:02,178 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 16:56:02,178 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 16:56:02,178 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 16:56:02,178 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 16:56:02,178 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 16:56:02,179 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;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;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;log-additional-information=true;
[2020-09-24 16:56:02,620 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 16:56:02,637 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 16:56:02,641 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 16:56:02,643 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 16:56:02,644 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 16:56:02,646 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_productSimulator.cil.c
[2020-09-24 16:56:02,734 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e4b9ac59c/36e05aa478b541778a7606ded367ff2b/FLAG2aec7aa0d
[2020-09-24 16:56:03,375 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 16:56:03,376 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_productSimulator.cil.c
[2020-09-24 16:56:03,391 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e4b9ac59c/36e05aa478b541778a7606ded367ff2b/FLAG2aec7aa0d
[2020-09-24 16:56:03,649 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e4b9ac59c/36e05aa478b541778a7606ded367ff2b
[2020-09-24 16:56:03,662 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 16:56:03,667 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 16:56:03,668 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 16:56:03,668 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 16:56:03,673 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 16:56:03,675 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:56:03" (1/1) ...
[2020-09-24 16:56:03,680 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22fd97d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:56:03, skipping insertion in model container
[2020-09-24 16:56:03,680 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:56:03" (1/1) ...
[2020-09-24 16:56:03,690 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 16:56:03,756 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 16:56:04,191 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:56:04,304 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 16:56:04,389 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:56:04,451 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 16:56:04,452 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:56:04 WrapperNode
[2020-09-24 16:56:04,452 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 16:56:04,453 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 16:56:04,453 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 16:56:04,453 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 16:56:04,470 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:56:04" (1/1) ...
[2020-09-24 16:56:04,470 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:56:04" (1/1) ...
[2020-09-24 16:56:04,492 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:56:04" (1/1) ...
[2020-09-24 16:56:04,493 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:56:04" (1/1) ...
[2020-09-24 16:56:04,524 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:56:04" (1/1) ...
[2020-09-24 16:56:04,536 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:56:04" (1/1) ...
[2020-09-24 16:56:04,542 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:56:04" (1/1) ...
[2020-09-24 16:56:04,551 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 16:56:04,551 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 16:56:04,552 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 16:56:04,552 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 16:56:04,553 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:56:04" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:56:04,635 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 16:56:04,635 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 16:56:04,636 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:56:04,636 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 16:56:04,636 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 16:56:04,636 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 16:56:04,636 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 16:56:04,637 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 16:56:04,637 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1
[2020-09-24 16:56:04,637 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 16:56:04,637 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__before__highWaterSensor
[2020-09-24 16:56:04,637 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__role__highWaterSensor
[2020-09-24 16:56:04,638 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__before__lowWaterSensor
[2020-09-24 16:56:04,638 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__role__lowWaterSensor
[2020-09-24 16:56:04,638 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__before__methaneAlarm
[2020-09-24 16:56:04,638 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__role__methaneAlarm
[2020-09-24 16:56:04,638 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 16:56:04,639 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__before__methaneQuery
[2020-09-24 16:56:04,639 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__role__methaneQuery
[2020-09-24 16:56:04,639 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 16:56:04,639 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 16:56:04,640 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 16:56:04,640 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 16:56:04,640 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 16:56:04,640 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-24 16:56:04,640 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-24 16:56:04,640 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-24 16:56:04,641 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-24 16:56:04,641 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 16:56:04,641 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 16:56:04,641 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 16:56:04,641 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 16:56:04,641 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:56:04,642 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 16:56:04,642 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 16:56:04,642 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 16:56:04,642 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 16:56:04,642 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 16:56:04,642 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 16:56:04,643 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 16:56:04,643 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 16:56:04,643 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 16:56:04,643 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-24 16:56:04,643 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-24 16:56:04,643 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 16:56:04,643 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 16:56:04,644 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 16:56:04,644 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 16:56:04,644 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 16:56:04,644 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 16:56:04,644 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 16:56:04,644 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 16:56:04,645 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 16:56:04,645 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 16:56:04,645 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 16:56:04,645 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 16:56:04,645 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 16:56:04,645 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 16:56:04,646 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 16:56:04,646 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 16:56:04,646 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 16:56:04,646 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 16:56:04,646 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 16:56:04,646 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 16:56:04,647 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 16:56:04,647 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 16:56:04,647 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 16:56:04,647 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1
[2020-09-24 16:56:04,647 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 16:56:04,647 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 16:56:04,647 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 16:56:04,648 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-24 16:56:04,648 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-24 16:56:04,648 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 16:56:04,648 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 16:56:04,648 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-24 16:56:04,648 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-24 16:56:04,649 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 16:56:04,649 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__before__highWaterSensor
[2020-09-24 16:56:04,649 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-24 16:56:04,649 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__role__highWaterSensor
[2020-09-24 16:56:04,649 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__before__lowWaterSensor
[2020-09-24 16:56:04,649 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-24 16:56:04,650 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__role__lowWaterSensor
[2020-09-24 16:56:04,650 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__before__methaneAlarm
[2020-09-24 16:56:04,650 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 16:56:04,650 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__role__methaneAlarm
[2020-09-24 16:56:04,650 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__before__methaneQuery
[2020-09-24 16:56:04,650 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__role__methaneQuery
[2020-09-24 16:56:04,651 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 16:56:04,651 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 16:56:04,651 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 16:56:04,651 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 16:56:04,651 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 16:56:04,651 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 16:56:04,651 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 16:56:04,652 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 16:56:04,652 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 16:56:04,652 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 16:56:04,652 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 16:56:04,652 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:56:04,652 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:56:04,652 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 16:56:04,653 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 16:56:04,653 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 16:56:04,653 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 16:56:04,653 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 16:56:04,653 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 16:56:04,653 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 16:56:04,654 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 16:56:05,946 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 16:56:05,946 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 16:56:05,955 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:56:05 BoogieIcfgContainer
[2020-09-24 16:56:05,956 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 16:56:05,957 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 16:56:05,957 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 16:56:05,961 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 16:56:05,961 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:56:03" (1/3) ...
[2020-09-24 16:56:05,962 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14e06e63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:56:05, skipping insertion in model container
[2020-09-24 16:56:05,963 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:56:04" (2/3) ...
[2020-09-24 16:56:05,963 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14e06e63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:56:05, skipping insertion in model container
[2020-09-24 16:56:05,963 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:56:05" (3/3) ...
[2020-09-24 16:56:05,966 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec4_productSimulator.cil.c
[2020-09-24 16:56:05,980 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 16:56:05,997 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 16:56:06,021 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 16:56:06,068 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 16:56:06,068 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 16:56:06,069 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 16:56:06,069 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 16:56:06,073 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 16:56:06,073 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 16:56:06,074 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 16:56:06,074 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 16:56:06,130 INFO  L276                IsEmpty]: Start isEmpty. Operand 420 states.
[2020-09-24 16:56:06,172 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 225
[2020-09-24 16:56:06,173 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:56:06,174 INFO  L422         BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:56:06,175 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:56:06,183 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:56:06,184 INFO  L82        PathProgramCache]: Analyzing trace with hash 1119932632, now seen corresponding path program 1 times
[2020-09-24 16:56:06,197 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:56:06,198 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1206805429]
[2020-09-24 16:56:06,207 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:56:06,675 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:06,842 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:07,117 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:08,916 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:10,462 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:14,460 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:29,550 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:29,550 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 267
[2020-09-24 16:56:29,551 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-24 16:56:29,551 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 22862
[2020-09-24 16:56:29,553 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:29,553 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:56:29,553 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 223
[2020-09-24 16:56:29,553 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:56:29,554 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 16:56:30,081 WARN  L193               SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 208
[2020-09-24 16:56:30,084 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:56:30,096 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:30,107 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:30,209 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:30,210 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 93
[2020-09-24 16:56:30,210 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:30,210 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 112
[2020-09-24 16:56:30,211 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:30,211 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:56:30,211 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:30,212 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:56:30,212 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:56:30,290 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91
[2020-09-24 16:56:30,291 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:30,293 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:30,296 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:30,296 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 16:56:30,297 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:30,297 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:56:30,297 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:30,298 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:56:30,298 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:30,298 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:56:30,299 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:56:30,333 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95
[2020-09-24 16:56:30,336 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:30,343 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:30,365 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:30,365 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 93
[2020-09-24 16:56:30,366 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:30,366 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 27
[2020-09-24 16:56:30,366 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:30,366 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:56:30,367 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:30,367 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:56:30,367 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:56:30,375 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-09-24 16:56:30,376 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:30,378 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:30,379 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:30,379 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 16:56:30,379 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:30,380 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:56:30,380 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:30,380 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:56:30,380 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:30,381 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:56:30,381 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:56:30,383 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13
[2020-09-24 16:56:30,383 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:30,385 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:30,386 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:30,387 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 16:56:30,387 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:30,387 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:56:30,387 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:30,388 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:56:30,388 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:30,388 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:56:30,388 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:56:30,390 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2020-09-24 16:56:30,391 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:30,392 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:30,394 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:30,394 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 16:56:30,394 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:30,394 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:56:30,395 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:30,395 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:56:30,395 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:30,395 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:56:30,396 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:56:30,398 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2020-09-24 16:56:30,399 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:30,400 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:30,402 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:30,402 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 16:56:30,402 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:30,402 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:56:30,402 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:30,403 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:56:30,403 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:30,403 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:56:30,403 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:56:30,405 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49
[2020-09-24 16:56:30,406 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:30,407 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:30,410 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:30,410 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 16:56:30,410 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:30,410 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:56:30,411 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:30,411 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:56:30,411 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:30,411 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:56:30,412 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:56:30,414 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61
[2020-09-24 16:56:30,415 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:30,416 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:30,418 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:30,418 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 16:56:30,418 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:30,419 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:56:30,419 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:30,419 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:56:30,419 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:30,420 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:56:30,420 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:56:30,426 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171
[2020-09-24 16:56:30,427 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:30,428 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:30,429 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:30,430 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:56:30,430 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:30,430 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:56:30,431 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:30,431 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:56:30,431 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:30,431 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:56:30,432 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:56:30,433 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181
[2020-09-24 16:56:30,434 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:30,435 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:30,436 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:30,437 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:56:30,437 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:30,437 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:56:30,437 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:30,438 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:56:30,438 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:30,438 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:56:30,438 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:56:30,439 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202
[2020-09-24 16:56:30,440 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:30,442 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:30,443 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:30,444 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:56:30,444 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:30,444 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:56:30,444 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:30,444 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:56:30,445 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:56:30,445 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:56:30,445 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:56:30,447 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212
[2020-09-24 16:56:30,447 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:30,449 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:30,451 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:30,451 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:56:30,451 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:30,451 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:56:30,452 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:30,452 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:56:30,452 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:56:30,452 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:56:30,453 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:56:30,509 INFO  L134       CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked.
[2020-09-24 16:56:30,510 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1206805429]
[2020-09-24 16:56:30,512 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:56:30,513 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-24 16:56:30,514 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131623132]
[2020-09-24 16:56:30,521 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-24 16:56:30,522 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:56:30,541 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-24 16:56:30,543 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-24 16:56:30,546 INFO  L87              Difference]: Start difference. First operand 420 states. Second operand 5 states.
[2020-09-24 16:56:33,459 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:56:33,459 INFO  L93              Difference]: Finished difference Result 676 states and 815 transitions.
[2020-09-24 16:56:33,460 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2020-09-24 16:56:33,462 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 224
[2020-09-24 16:56:33,463 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:56:33,486 INFO  L225             Difference]: With dead ends: 676
[2020-09-24 16:56:33,486 INFO  L226             Difference]: Without dead ends: 427
[2020-09-24 16:56:33,493 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2020-09-24 16:56:33,516 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 427 states.
[2020-09-24 16:56:33,622 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 369.
[2020-09-24 16:56:33,624 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 369 states.
[2020-09-24 16:56:33,627 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 414 transitions.
[2020-09-24 16:56:33,630 INFO  L78                 Accepts]: Start accepts. Automaton has 369 states and 414 transitions. Word has length 224
[2020-09-24 16:56:33,631 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:56:33,631 INFO  L479      AbstractCegarLoop]: Abstraction has 369 states and 414 transitions.
[2020-09-24 16:56:33,631 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-24 16:56:33,632 INFO  L276                IsEmpty]: Start isEmpty. Operand 369 states and 414 transitions.
[2020-09-24 16:56:33,637 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 226
[2020-09-24 16:56:33,638 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:56:33,638 INFO  L422         BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:56:33,639 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 16:56:33,639 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:56:33,639 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:56:33,639 INFO  L82        PathProgramCache]: Analyzing trace with hash -259914180, now seen corresponding path program 1 times
[2020-09-24 16:56:33,640 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:56:33,640 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [982959603]
[2020-09-24 16:56:33,640 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:56:33,696 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:33,763 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:33,908 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:35,431 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:35,875 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:37,488 FATAL L256   erpolLogProxyWrapper]: Now shrinking...