/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_spec5_product50.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 16:58:52,128 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 16:58:52,133 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 16:58:52,176 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 16:58:52,178 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 16:58:52,189 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 16:58:52,190 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 16:58:52,193 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 16:58:52,197 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 16:58:52,199 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 16:58:52,200 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 16:58:52,201 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 16:58:52,201 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 16:58:52,202 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 16:58:52,203 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 16:58:52,205 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 16:58:52,205 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 16:58:52,206 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 16:58:52,208 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 16:58:52,210 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 16:58:52,211 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 16:58:52,212 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 16:58:52,213 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 16:58:52,214 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 16:58:52,217 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 16:58:52,217 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 16:58:52,217 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 16:58:52,218 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 16:58:52,219 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 16:58:52,220 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 16:58:52,220 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 16:58:52,221 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 16:58:52,222 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 16:58:52,222 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 16:58:52,223 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 16:58:52,224 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 16:58:52,224 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 16:58:52,225 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 16:58:52,225 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 16:58:52,226 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 16:58:52,227 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 16:58:52,228 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 16:58:52,253 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 16:58:52,253 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 16:58:52,255 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 16:58:52,255 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 16:58:52,255 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 16:58:52,255 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 16:58:52,255 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 16:58:52,256 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 16:58:52,256 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 16:58:52,256 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 16:58:52,256 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 16:58:52,256 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 16:58:52,257 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 16:58:52,257 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 16:58:52,257 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 16:58:52,257 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 16:58:52,258 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 16:58:52,258 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 16:58:52,258 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 16:58:52,258 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 16:58:52,258 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 16:58:52,259 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:58:52,259 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 16:58:52,259 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 16:58:52,259 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 16:58:52,259 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 16:58:52,260 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 16:58:52,260 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 16:58:52,260 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 16:58:52,260 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 16:58:52,707 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 16:58:52,724 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 16:58:52,729 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 16:58:52,730 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 16:58:52,731 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 16:58:52,732 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product50.cil.c
[2020-09-24 16:58:52,810 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c7035b3af/c11bf96031d045a6b31e58948134a711/FLAG2a60432d3
[2020-09-24 16:58:53,355 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 16:58:53,356 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product50.cil.c
[2020-09-24 16:58:53,371 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c7035b3af/c11bf96031d045a6b31e58948134a711/FLAG2a60432d3
[2020-09-24 16:58:53,628 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c7035b3af/c11bf96031d045a6b31e58948134a711
[2020-09-24 16:58:53,641 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 16:58:53,647 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 16:58:53,648 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 16:58:53,648 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 16:58:53,653 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 16:58:53,654 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:58:53" (1/1) ...
[2020-09-24 16:58:53,658 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:53, skipping insertion in model container
[2020-09-24 16:58:53,658 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:58:53" (1/1) ...
[2020-09-24 16:58:53,667 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 16:58:53,717 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 16:58:54,097 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:58:54,117 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 16:58:54,296 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:58:54,346 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 16:58:54,346 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:54 WrapperNode
[2020-09-24 16:58:54,347 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 16:58:54,347 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 16:58:54,348 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 16:58:54,348 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 16:58:54,362 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:54" (1/1) ...
[2020-09-24 16:58:54,362 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:54" (1/1) ...
[2020-09-24 16:58:54,389 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:54" (1/1) ...
[2020-09-24 16:58:54,390 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:54" (1/1) ...
[2020-09-24 16:58:54,422 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:54" (1/1) ...
[2020-09-24 16:58:54,432 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:54" (1/1) ...
[2020-09-24 16:58:54,438 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:54" (1/1) ...
[2020-09-24 16:58:54,446 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 16:58:54,447 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 16:58:54,447 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 16:58:54,447 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 16:58:54,448 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:54" (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 16:58:54,523 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 16:58:54,523 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 16:58:54,523 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:58:54,524 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 16:58:54,524 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 16:58:54,524 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 16:58:54,524 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-24 16:58:54,524 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 16:58:54,524 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 16:58:54,525 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 16:58:54,525 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 16:58:54,525 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 16:58:54,525 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 16:58:54,525 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-24 16:58:54,526 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-24 16:58:54,526 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-24 16:58:54,526 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 16:58:54,526 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 16:58:54,526 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 16:58:54,527 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 16:58:54,527 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 16:58:54,527 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 16:58:54,527 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 16:58:54,527 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-24 16:58:54,528 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-24 16:58:54,528 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 16:58:54,528 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 16:58:54,528 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:58:54,528 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 16:58:54,529 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 16:58:54,529 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 16:58:54,529 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1
[2020-09-24 16:58:54,529 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2
[2020-09-24 16:58:54,529 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3
[2020-09-24 16:58:54,529 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 16:58:54,529 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 16:58:54,530 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 16:58:54,530 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 16:58:54,530 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 16:58:54,530 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 16:58:54,530 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 16:58:54,530 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 16:58:54,531 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 16:58:54,531 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 16:58:54,531 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 16:58:54,531 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 16:58:54,531 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 16:58:54,531 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 16:58:54,531 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 16:58:54,532 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 16:58:54,532 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-24 16:58:54,532 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-24 16:58:54,532 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 16:58:54,532 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 16:58:54,532 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 16:58:54,533 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 16:58:54,533 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 16:58:54,533 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-24 16:58:54,533 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2
[2020-09-24 16:58:54,533 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3
[2020-09-24 16:58:54,533 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 16:58:54,534 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 16:58:54,534 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-24 16:58:54,534 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-24 16:58:54,534 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-24 16:58:54,534 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 16:58:54,534 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 16:58:54,535 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 16:58:54,535 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 16:58:54,535 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 16:58:54,535 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 16:58:54,535 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 16:58:54,535 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 16:58:54,535 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 16:58:54,536 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 16:58:54,536 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 16:58:54,536 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 16:58:54,536 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 16:58:54,536 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 16:58:54,536 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 16:58:54,537 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 16:58:54,537 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 16:58:54,537 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:58:54,537 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:58:54,537 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 16:58:54,537 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 16:58:54,538 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 16:58:54,538 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 16:58:54,538 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1
[2020-09-24 16:58:54,538 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 16:58:54,538 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 16:58:54,538 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 16:58:54,538 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 16:58:54,539 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 16:58:54,539 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 16:58:54,539 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 16:58:54,539 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 16:58:54,539 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 16:58:54,539 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 16:58:54,539 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 16:58:55,674 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 16:58:55,675 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 16:58:55,688 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:58:55 BoogieIcfgContainer
[2020-09-24 16:58:55,688 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 16:58:55,690 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 16:58:55,691 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 16:58:55,695 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 16:58:55,695 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:58:53" (1/3) ...
[2020-09-24 16:58:55,696 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ad90c5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:58:55, skipping insertion in model container
[2020-09-24 16:58:55,696 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:54" (2/3) ...
[2020-09-24 16:58:55,697 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ad90c5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:58:55, skipping insertion in model container
[2020-09-24 16:58:55,697 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:58:55" (3/3) ...
[2020-09-24 16:58:55,700 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec5_product50.cil.c
[2020-09-24 16:58:55,712 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 16:58:55,727 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 16:58:55,752 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 16:58:55,789 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 16:58:55,789 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 16:58:55,790 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 16:58:55,791 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 16:58:55,791 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 16:58:55,791 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 16:58:55,791 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 16:58:55,792 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 16:58:55,825 INFO  L276                IsEmpty]: Start isEmpty. Operand 329 states.
[2020-09-24 16:58:55,843 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 161
[2020-09-24 16:58:55,844 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:58:55,845 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:55,846 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:58:55,853 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:58:55,854 INFO  L82        PathProgramCache]: Analyzing trace with hash -68792430, now seen corresponding path program 1 times
[2020-09-24 16:58:55,866 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:58:55,866 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [807497379]
[2020-09-24 16:58:55,867 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:58:56,233 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:56,383 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:56,593 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:58,235 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:58,423 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:59:01,270 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:59:08,707 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:59:08,707 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 197
[2020-09-24 16:59:08,707 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-24 16:59:08,716 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 12462
[2020-09-24 16:59:08,718 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:59:08,719 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 16:59:08,719 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 77
[2020-09-24 16:59:08,719 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 115
[2020-09-24 16:59:08,719 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 16:59:09,173 WARN  L193               SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 16:59:09,179 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:59:09,242 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:59:09,285 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:59:09,493 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:59:09,494 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-24 16:59:09,494 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:59:09,494 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 249
[2020-09-24 16:59:09,495 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:59:09,495 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:59:09,495 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:59:09,495 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 73
[2020-09-24 16:59:09,495 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:59:09,559 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-24 16:59:09,560 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:59:09,561 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:59:09,564 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:59:09,565 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:59:09,565 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:59:09,565 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:59:09,565 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:59:09,566 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:59:09,566 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:59:09,566 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:59:09,566 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:59:09,568 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-24 16:59:09,569 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:59:09,570 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:59:09,573 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:59:09,573 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:59:09,573 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:59:09,573 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:59:09,574 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:59:09,574 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:59:09,574 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:59:09,574 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:59:09,574 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:59:09,576 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-24 16:59:09,577 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:59:09,579 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:59:09,585 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:59:09,586 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:59:09,586 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:59:09,586 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 16:59:09,586 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:59:09,587 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:59:09,587 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:59:09,587 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:59:09,587 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:59:09,589 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-24 16:59:09,590 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:59:09,591 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:59:09,593 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:59:09,594 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:59:09,594 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:59:09,594 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:59:09,594 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:59:09,594 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:59:09,595 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:59:09,595 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:59:09,595 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:59:09,611 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-24 16:59:09,613 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:59:09,614 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:59:09,617 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:59:09,618 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 16:59:09,618 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:59:09,618 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:59:09,619 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:59:09,619 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:59:09,619 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:59:09,619 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-09-24 16:59:09,619 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:59:09,621 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2020-09-24 16:59:09,627 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:59:09,629 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:59:09,637 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:59:09,637 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 19
[2020-09-24 16:59:09,637 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:59:09,637 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 16:59:09,638 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:59:09,638 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:59:09,638 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:59:09,638 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 15
[2020-09-24 16:59:09,638 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:59:09,642 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:59:09,643 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:59:09,644 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:59:09,645 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:59:09,646 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:59:09,646 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:59:09,646 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:59:09,646 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:59:09,647 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:59:09,647 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:59:09,647 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:59:09,647 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:59:09,663 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137
[2020-09-24 16:59:09,664 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:59:09,666 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:59:09,670 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:59:09,670 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:59:09,670 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:59:09,670 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:59:09,671 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:59:09,671 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:59:09,671 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:59:09,671 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:59:09,671 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:59:09,677 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147
[2020-09-24 16:59:09,678 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:59:09,680 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:59:09,686 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:59:09,687 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:59:09,687 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:59:09,687 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 16:59:09,687 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:59:09,688 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 16:59:09,688 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:59:09,688 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:59:09,688 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:59:09,751 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-09-24 16:59:09,752 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [807497379]
[2020-09-24 16:59:09,754 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:59:09,754 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-09-24 16:59:09,755 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706396455]
[2020-09-24 16:59:09,762 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-24 16:59:09,762 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:59:09,779 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-24 16:59:09,780 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-09-24 16:59:09,783 INFO  L87              Difference]: Start difference. First operand 329 states. Second operand 9 states.
[2020-09-24 16:59:10,371 WARN  L193               SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 16:59:11,127 WARN  L193               SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-24 16:59:11,426 WARN  L193               SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-24 16:59:12,791 WARN  L193               SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 16:59:13,087 WARN  L193               SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-24 16:59:13,442 WARN  L193               SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:59:13,845 WARN  L193               SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-24 16:59:14,145 WARN  L193               SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-24 16:59:14,436 WARN  L193               SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-24 16:59:15,300 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:59:15,300 INFO  L93              Difference]: Finished difference Result 628 states and 756 transitions.
[2020-09-24 16:59:15,301 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2020-09-24 16:59:15,303 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 160
[2020-09-24 16:59:15,304 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:59:15,339 INFO  L225             Difference]: With dead ends: 628
[2020-09-24 16:59:15,339 INFO  L226             Difference]: Without dead ends: 423
[2020-09-24 16:59:15,351 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342
[2020-09-24 16:59:15,382 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 423 states.
[2020-09-24 16:59:15,555 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 375.
[2020-09-24 16:59:15,557 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 375 states.
[2020-09-24 16:59:15,563 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 419 transitions.
[2020-09-24 16:59:15,565 INFO  L78                 Accepts]: Start accepts. Automaton has 375 states and 419 transitions. Word has length 160
[2020-09-24 16:59:15,568 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:59:15,568 INFO  L479      AbstractCegarLoop]: Abstraction has 375 states and 419 transitions.
[2020-09-24 16:59:15,568 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-24 16:59:15,568 INFO  L276                IsEmpty]: Start isEmpty. Operand 375 states and 419 transitions.
[2020-09-24 16:59:15,586 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 236
[2020-09-24 16:59:15,586 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:59:15,587 INFO  L422         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:15,587 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 16:59:15,587 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:59:15,588 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:59:15,588 INFO  L82        PathProgramCache]: Analyzing trace with hash 153833492, now seen corresponding path program 1 times
[2020-09-24 16:59:15,588 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:59:15,588 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [362396814]
[2020-09-24 16:59:15,589 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:59:15,655 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:59:15,720 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:59:15,812 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:59:15,951 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:59:16,187 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:59:18,530 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:59:26,690 FATAL L256   erpolLogProxyWrapper]: Now shrinking...