/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_spec3_product30.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 16:51:02,024 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 16:51:02,029 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 16:51:02,076 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 16:51:02,077 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 16:51:02,078 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 16:51:02,079 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 16:51:02,081 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 16:51:02,083 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 16:51:02,084 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 16:51:02,085 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 16:51:02,086 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 16:51:02,087 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 16:51:02,088 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 16:51:02,089 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 16:51:02,090 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 16:51:02,091 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 16:51:02,092 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 16:51:02,094 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 16:51:02,096 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 16:51:02,098 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 16:51:02,099 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 16:51:02,101 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 16:51:02,102 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 16:51:02,104 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 16:51:02,104 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 16:51:02,105 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 16:51:02,106 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 16:51:02,106 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 16:51:02,107 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 16:51:02,108 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 16:51:02,108 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 16:51:02,109 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 16:51:02,110 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 16:51:02,111 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 16:51:02,112 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 16:51:02,112 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 16:51:02,113 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 16:51:02,113 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 16:51:02,114 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 16:51:02,115 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 16:51:02,116 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 16:51:02,142 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 16:51:02,142 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 16:51:02,144 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 16:51:02,144 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 16:51:02,144 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 16:51:02,144 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 16:51:02,145 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 16:51:02,145 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 16:51:02,145 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 16:51:02,145 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 16:51:02,145 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 16:51:02,146 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 16:51:02,146 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 16:51:02,146 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 16:51:02,146 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 16:51:02,146 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 16:51:02,147 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 16:51:02,147 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 16:51:02,147 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 16:51:02,147 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 16:51:02,148 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 16:51:02,148 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:51:02,148 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 16:51:02,148 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 16:51:02,148 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 16:51:02,149 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 16:51:02,149 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 16:51:02,149 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 16:51:02,149 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 16:51:02,149 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 16:51:02,633 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 16:51:02,651 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 16:51:02,655 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 16:51:02,657 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 16:51:02,658 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 16:51:02,659 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product30.cil.c
[2020-09-24 16:51:02,748 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d67b89e67/090b92fcb5cd413c98e22450a3b3338a/FLAGc704f75f9
[2020-09-24 16:51:03,393 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 16:51:03,394 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product30.cil.c
[2020-09-24 16:51:03,409 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d67b89e67/090b92fcb5cd413c98e22450a3b3338a/FLAGc704f75f9
[2020-09-24 16:51:03,635 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d67b89e67/090b92fcb5cd413c98e22450a3b3338a
[2020-09-24 16:51:03,649 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 16:51:03,653 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 16:51:03,655 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 16:51:03,655 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 16:51:03,659 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 16:51:03,661 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:51:03" (1/1) ...
[2020-09-24 16:51:03,664 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5db1276a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:03, skipping insertion in model container
[2020-09-24 16:51:03,665 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:51:03" (1/1) ...
[2020-09-24 16:51:03,674 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 16:51:03,731 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 16:51:04,126 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:51:04,161 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 16:51:04,383 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:51:04,421 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 16:51:04,421 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:04 WrapperNode
[2020-09-24 16:51:04,421 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 16:51:04,422 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 16:51:04,422 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 16:51:04,422 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 16:51:04,437 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:04" (1/1) ...
[2020-09-24 16:51:04,438 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:04" (1/1) ...
[2020-09-24 16:51:04,469 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:04" (1/1) ...
[2020-09-24 16:51:04,469 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:04" (1/1) ...
[2020-09-24 16:51:04,523 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:04" (1/1) ...
[2020-09-24 16:51:04,534 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:04" (1/1) ...
[2020-09-24 16:51:04,539 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:04" (1/1) ...
[2020-09-24 16:51:04,547 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 16:51:04,548 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 16:51:04,548 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 16:51:04,548 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 16:51:04,549 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:04" (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 16:51:04,625 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 16:51:04,625 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 16:51:04,625 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:51:04,625 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 16:51:04,626 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 16:51:04,626 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 16:51:04,626 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 16:51:04,626 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 16:51:04,626 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 16:51:04,627 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-24 16:51:04,627 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 16:51:04,627 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 16:51:04,627 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 16:51:04,627 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 16:51:04,627 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 16:51:04,628 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 16:51:04,628 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 16:51:04,628 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:51:04,628 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 16:51:04,629 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 16:51:04,629 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 16:51:04,629 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 16:51:04,629 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 16:51:04,629 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 16:51:04,629 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery
[2020-09-24 16:51:04,630 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 16:51:04,630 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor
[2020-09-24 16:51:04,630 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 16:51:04,630 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 16:51:04,630 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 16:51:04,630 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 16:51:04,631 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 16:51:04,631 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-24 16:51:04,631 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-24 16:51:04,631 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 16:51:04,631 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 16:51:04,631 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 16:51:04,632 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 16:51:04,632 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 16:51:04,632 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-24 16:51:04,632 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 16:51:04,632 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 16:51:04,632 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 16:51:04,633 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 16:51:04,633 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 16:51:04,633 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 16:51:04,633 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 16:51:04,633 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 16:51:04,634 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 16:51:04,634 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-24 16:51:04,634 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 16:51:04,634 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 16:51:04,634 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 16:51:04,634 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 16:51:04,635 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 16:51:04,635 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 16:51:04,635 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 16:51:04,635 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 16:51:04,635 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 16:51:04,635 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 16:51:04,636 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 16:51:04,636 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 16:51:04,636 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 16:51:04,636 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 16:51:04,636 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 16:51:04,636 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 16:51:04,636 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 16:51:04,637 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 16:51:04,637 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 16:51:04,637 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 16:51:04,637 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 16:51:04,637 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 16:51:04,638 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:51:04,638 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:51:04,638 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 16:51:04,638 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 16:51:04,638 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 16:51:04,638 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 16:51:04,639 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-24 16:51:04,639 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 16:51:04,639 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 16:51:04,639 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 16:51:04,639 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-24 16:51:04,639 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 16:51:04,640 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 16:51:04,640 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-24 16:51:04,640 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery
[2020-09-24 16:51:04,640 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 16:51:04,640 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor
[2020-09-24 16:51:04,640 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 16:51:04,640 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 16:51:04,641 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 16:51:04,641 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 16:51:04,641 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 16:51:05,809 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 16:51:05,810 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 16:51:05,822 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:51:05 BoogieIcfgContainer
[2020-09-24 16:51:05,822 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 16:51:05,823 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 16:51:05,823 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 16:51:05,828 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 16:51:05,829 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:51:03" (1/3) ...
[2020-09-24 16:51:05,830 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22270d3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:51:05, skipping insertion in model container
[2020-09-24 16:51:05,830 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:51:04" (2/3) ...
[2020-09-24 16:51:05,831 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22270d3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:51:05, skipping insertion in model container
[2020-09-24 16:51:05,831 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:51:05" (3/3) ...
[2020-09-24 16:51:05,833 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product30.cil.c
[2020-09-24 16:51:05,847 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 16:51:05,862 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 16:51:05,885 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 16:51:05,919 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 16:51:05,920 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 16:51:05,920 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 16:51:05,920 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 16:51:05,920 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 16:51:05,920 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 16:51:05,921 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 16:51:05,921 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 16:51:05,956 INFO  L276                IsEmpty]: Start isEmpty. Operand 320 states.
[2020-09-24 16:51:05,977 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-24 16:51:05,977 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:51:05,979 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 16:51:05,979 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:51:05,986 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:51:05,987 INFO  L82        PathProgramCache]: Analyzing trace with hash -2091214271, now seen corresponding path program 1 times
[2020-09-24 16:51:05,996 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:51:05,996 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1239982549]
[2020-09-24 16:51:05,997 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:51:06,303 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:06,470 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:06,706 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:08,338 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:12,231 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:12,232 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-24 16:51:12,232 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 16:51:12,232 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5915
[2020-09-24 16:51:12,235 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:12,235 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:51:12,235 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 129
[2020-09-24 16:51:12,235 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:51:12,236 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 16:51:12,832 WARN  L193               SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:51:12,838 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:51:12,886 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:12,900 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:13,047 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:13,048 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:51:13,048 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:13,048 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 158
[2020-09-24 16:51:13,048 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:13,049 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:51:13,049 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:51:13,049 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:51:13,049 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:51:13,113 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:51:13,114 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:13,115 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:13,117 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:13,118 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:51:13,118 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:13,118 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:51:13,118 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:13,119 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:51:13,119 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:51:13,119 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:51:13,119 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:51:13,121 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:51:13,122 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:13,123 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:13,125 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:13,125 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:51:13,125 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:13,126 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:51:13,126 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:13,126 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:51:13,126 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:51:13,127 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:51:13,127 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:51:13,128 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:51:13,129 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:13,131 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:13,136 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:13,136 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:51:13,137 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:13,137 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 16:51:13,137 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:13,137 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:51:13,138 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:51:13,138 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:51:13,138 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:51:13,140 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:51:13,141 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:13,142 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:13,144 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:13,144 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:51:13,145 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:13,145 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:51:13,145 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:13,145 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:51:13,146 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:51:13,146 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:51:13,146 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:51:13,148 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 16:51:13,149 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:13,151 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:13,153 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:13,154 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:51:13,154 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:13,154 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:51:13,155 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:13,155 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:51:13,155 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:51:13,155 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:51:13,156 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:51:13,157 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 16:51:13,159 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:13,160 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:13,163 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:13,163 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:51:13,164 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:13,164 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:51:13,165 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:13,165 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:51:13,165 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:51:13,165 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:51:13,166 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:51:13,168 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-24 16:51:13,169 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:13,171 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:13,173 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:13,173 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:51:13,174 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:13,174 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:51:13,174 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:13,175 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:51:13,175 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:51:13,176 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:51:13,176 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:51:13,210 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 16:51:13,212 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1239982549]
[2020-09-24 16:51:13,214 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:51:13,214 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 16:51:13,216 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286418221]
[2020-09-24 16:51:13,223 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 16:51:13,223 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:51:13,242 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 16:51:13,243 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 16:51:13,246 INFO  L87              Difference]: Start difference. First operand 320 states. Second operand 3 states.
[2020-09-24 16:51:14,680 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:51:14,680 INFO  L93              Difference]: Finished difference Result 486 states and 580 transitions.
[2020-09-24 16:51:14,682 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-09-24 16:51:14,684 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 153
[2020-09-24 16:51:14,688 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:51:14,722 INFO  L225             Difference]: With dead ends: 486
[2020-09-24 16:51:14,722 INFO  L226             Difference]: Without dead ends: 301
[2020-09-24 16:51:14,732 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 16:51:14,757 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 301 states.
[2020-09-24 16:51:14,840 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 259.
[2020-09-24 16:51:14,843 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 259 states.
[2020-09-24 16:51:14,848 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 282 transitions.
[2020-09-24 16:51:14,853 INFO  L78                 Accepts]: Start accepts. Automaton has 259 states and 282 transitions. Word has length 153
[2020-09-24 16:51:14,854 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:51:14,854 INFO  L479      AbstractCegarLoop]: Abstraction has 259 states and 282 transitions.
[2020-09-24 16:51:14,854 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 16:51:14,854 INFO  L276                IsEmpty]: Start isEmpty. Operand 259 states and 282 transitions.
[2020-09-24 16:51:14,864 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 155
[2020-09-24 16:51:14,867 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:51:14,867 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 16:51:14,867 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 16:51:14,868 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:51:14,868 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:51:14,869 INFO  L82        PathProgramCache]: Analyzing trace with hash 770712739, now seen corresponding path program 1 times
[2020-09-24 16:51:14,869 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:51:14,869 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1721705401]
[2020-09-24 16:51:14,869 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:51:14,946 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:15,009 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:15,112 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:16,781 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:22,460 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:22,460 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 187
[2020-09-24 16:51:22,461 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 16:51:22,461 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7509
[2020-09-24 16:51:22,462 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:22,462 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 16:51:22,463 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 77
[2020-09-24 16:51:22,463 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 94
[2020-09-24 16:51:22,463 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:51:22,963 WARN  L193               SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:51:22,965 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:51:22,999 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:23,035 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:23,232 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:23,232 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:51:23,233 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:23,234 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 230
[2020-09-24 16:51:23,234 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:23,234 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:51:23,234 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:51:23,234 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 73
[2020-09-24 16:51:23,235 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:51:23,275 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:51:23,276 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:23,279 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:23,282 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:23,282 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:51:23,282 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:23,283 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:51:23,283 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:23,283 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:51:23,283 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:51:23,284 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:51:23,284 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:51:23,285 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:51:23,286 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:23,287 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:23,289 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:23,290 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:51:23,290 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:23,290 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:51:23,290 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:23,290 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:51:23,291 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:51:23,291 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:51:23,291 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:51:23,293 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:51:23,294 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:23,296 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:23,302 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:23,303 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:51:23,303 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:23,303 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 16:51:23,304 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:23,304 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:51:23,304 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:51:23,304 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:51:23,305 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:51:23,307 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:51:23,308 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:23,309 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:23,312 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:23,312 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:51:23,312 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:23,312 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:51:23,313 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:23,313 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:51:23,313 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:51:23,313 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:51:23,314 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:51:23,315 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122
[2020-09-24 16:51:23,316 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:23,318 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:23,322 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:23,322 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:51:23,323 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:23,323 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 16:51:23,323 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:23,323 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:51:23,323 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:51:23,324 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:51:23,324 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:51:23,326 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132
[2020-09-24 16:51:23,328 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:23,329 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:23,337 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:23,337 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:51:23,337 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:23,337 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 16:51:23,338 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:23,338 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 16:51:23,338 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:51:23,338 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:51:23,338 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:51:23,382 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142
[2020-09-24 16:51:23,383 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:23,385 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:23,386 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:23,386 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:51:23,387 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:23,387 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:51:23,387 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:23,388 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:51:23,388 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:51:23,388 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:51:23,388 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:51:23,416 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 16:51:23,417 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1721705401]
[2020-09-24 16:51:23,417 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:51:23,418 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-24 16:51:23,418 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040495089]
[2020-09-24 16:51:23,420 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-24 16:51:23,421 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:51:23,421 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-24 16:51:23,421 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-24 16:51:23,421 INFO  L87              Difference]: Start difference. First operand 259 states and 282 transitions. Second operand 8 states.
[2020-09-24 16:51:23,908 WARN  L193               SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:51:25,634 WARN  L193               SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 16:51:26,018 WARN  L193               SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 192
[2020-09-24 16:51:26,451 WARN  L193               SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:51:26,932 WARN  L193               SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 16:51:27,254 WARN  L193               SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:51:27,590 WARN  L193               SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:51:27,881 WARN  L193               SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:51:28,930 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:51:28,930 INFO  L93              Difference]: Finished difference Result 597 states and 709 transitions.
[2020-09-24 16:51:28,931 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-24 16:51:28,931 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 154
[2020-09-24 16:51:28,932 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:51:28,937 INFO  L225             Difference]: With dead ends: 597
[2020-09-24 16:51:28,937 INFO  L226             Difference]: Without dead ends: 448
[2020-09-24 16:51:28,939 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-24 16:51:28,941 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 448 states.
[2020-09-24 16:51:29,027 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 402.
[2020-09-24 16:51:29,027 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 402 states.
[2020-09-24 16:51:29,030 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 457 transitions.
[2020-09-24 16:51:29,031 INFO  L78                 Accepts]: Start accepts. Automaton has 402 states and 457 transitions. Word has length 154
[2020-09-24 16:51:29,032 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:51:29,032 INFO  L479      AbstractCegarLoop]: Abstraction has 402 states and 457 transitions.
[2020-09-24 16:51:29,032 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-24 16:51:29,032 INFO  L276                IsEmpty]: Start isEmpty. Operand 402 states and 457 transitions.
[2020-09-24 16:51:29,036 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 160
[2020-09-24 16:51:29,036 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:51:29,036 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 16:51:29,037 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 16:51:29,037 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:51:29,037 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:51:29,037 INFO  L82        PathProgramCache]: Analyzing trace with hash -1547177997, now seen corresponding path program 1 times
[2020-09-24 16:51:29,038 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:51:29,038 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1045467890]
[2020-09-24 16:51:29,038 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:51:29,087 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:29,140 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:29,230 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:29,354 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:34,182 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:34,907 FATAL L256   erpolLogProxyWrapper]: Now shrinking...