/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product39.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 16:54:54,298 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 16:54:54,302 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 16:54:54,342 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 16:54:54,344 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 16:54:54,351 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 16:54:54,354 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 16:54:54,357 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 16:54:54,360 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 16:54:54,363 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 16:54:54,364 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 16:54:54,365 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 16:54:54,366 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 16:54:54,369 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 16:54:54,371 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 16:54:54,373 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 16:54:54,375 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 16:54:54,377 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 16:54:54,378 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 16:54:54,388 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 16:54:54,389 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 16:54:54,390 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 16:54:54,391 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 16:54:54,392 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 16:54:54,394 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 16:54:54,395 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 16:54:54,395 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 16:54:54,396 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 16:54:54,396 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 16:54:54,397 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 16:54:54,398 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 16:54:54,398 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 16:54:54,399 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 16:54:54,400 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 16:54:54,401 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 16:54:54,402 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 16:54:54,402 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 16:54:54,403 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 16:54:54,403 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 16:54:54,404 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 16:54:54,405 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 16:54:54,406 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 16:54:54,431 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 16:54:54,431 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 16:54:54,433 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 16:54:54,433 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 16:54:54,433 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 16:54:54,434 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 16:54:54,434 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 16:54:54,434 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 16:54:54,434 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 16:54:54,434 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 16:54:54,435 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 16:54:54,435 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 16:54:54,435 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 16:54:54,435 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 16:54:54,435 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 16:54:54,436 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 16:54:54,436 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 16:54:54,436 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 16:54:54,436 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 16:54:54,437 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 16:54:54,437 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 16:54:54,437 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:54:54,437 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 16:54:54,437 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 16:54:54,438 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 16:54:54,438 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 16:54:54,438 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 16:54:54,438 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 16:54:54,438 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 16:54:54,439 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 16:54:54,891 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 16:54:54,915 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 16:54:54,920 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 16:54:54,922 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 16:54:54,923 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 16:54:54,925 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product39.cil.c
[2020-09-24 16:54:55,014 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/32ff4997b/141a4a39add04c8f855ae9b9951d7c0d/FLAG19e854177
[2020-09-24 16:54:55,662 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 16:54:55,663 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product39.cil.c
[2020-09-24 16:54:55,686 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/32ff4997b/141a4a39add04c8f855ae9b9951d7c0d/FLAG19e854177
[2020-09-24 16:54:55,879 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/32ff4997b/141a4a39add04c8f855ae9b9951d7c0d
[2020-09-24 16:54:55,891 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 16:54:55,897 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 16:54:55,898 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 16:54:55,898 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 16:54:55,902 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 16:54:55,903 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:54:55" (1/1) ...
[2020-09-24 16:54:55,908 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:55, skipping insertion in model container
[2020-09-24 16:54:55,908 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:54:55" (1/1) ...
[2020-09-24 16:54:55,917 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 16:54:55,987 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 16:54:56,338 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:54:56,354 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 16:54:56,574 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:54:56,623 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 16:54:56,624 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:56 WrapperNode
[2020-09-24 16:54:56,624 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 16:54:56,625 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 16:54:56,625 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 16:54:56,625 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 16:54:56,638 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:56" (1/1) ...
[2020-09-24 16:54:56,640 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:56" (1/1) ...
[2020-09-24 16:54:56,661 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:56" (1/1) ...
[2020-09-24 16:54:56,661 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:56" (1/1) ...
[2020-09-24 16:54:56,691 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:56" (1/1) ...
[2020-09-24 16:54:56,702 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:56" (1/1) ...
[2020-09-24 16:54:56,708 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:56" (1/1) ...
[2020-09-24 16:54:56,719 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 16:54:56,720 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 16:54:56,720 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 16:54:56,720 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 16:54:56,721 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:56" (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 16:54:56,804 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 16:54:56,805 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 16:54:56,806 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:54:56,806 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 16:54:56,806 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 16:54:56,807 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 16:54:56,807 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 16:54:56,807 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 16:54:56,807 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 16:54:56,808 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:54:56,808 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 16:54:56,808 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 16:54:56,809 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 16:54:56,809 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 16:54:56,809 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 16:54:56,810 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 16:54:56,810 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-24 16:54:56,810 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 16:54:56,810 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 16:54:56,811 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 16:54:56,812 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 16:54:56,812 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 16:54:56,812 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 16:54:56,812 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-24 16:54:56,814 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-24 16:54:56,815 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 16:54:56,815 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 16:54:56,815 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 16:54:56,815 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 16:54:56,815 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 16:54:56,815 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 16:54:56,816 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 16:54:56,816 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-24 16:54:56,816 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 16:54:56,816 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 16:54:56,817 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 16:54:56,817 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 16:54:56,817 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 16:54:56,817 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1
[2020-09-24 16:54:56,817 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 16:54:56,817 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 16:54:56,818 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 16:54:56,818 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 16:54:56,818 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 16:54:56,818 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 16:54:56,818 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 16:54:56,818 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 16:54:56,818 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 16:54:56,819 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 16:54:56,819 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 16:54:56,819 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 16:54:56,819 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 16:54:56,819 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 16:54:56,820 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 16:54:56,820 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 16:54:56,820 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 16:54:56,821 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:54:56,821 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:54:56,821 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 16:54:56,821 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 16:54:56,821 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 16:54:56,821 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 16:54:56,822 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 16:54:56,822 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 16:54:56,822 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 16:54:56,822 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-24 16:54:56,822 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 16:54:56,822 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 16:54:56,822 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 16:54:56,823 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 16:54:56,823 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 16:54:56,824 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 16:54:56,824 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-24 16:54:56,824 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 16:54:56,825 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 16:54:56,825 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 16:54:56,826 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 16:54:56,826 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1
[2020-09-24 16:54:56,826 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 16:54:56,826 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 16:54:56,826 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-24 16:54:56,826 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-24 16:54:56,827 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 16:54:56,827 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 16:54:56,828 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 16:54:56,828 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 16:54:56,828 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 16:54:56,828 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 16:54:56,828 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 16:54:56,828 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 16:54:56,829 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 16:54:56,829 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 16:54:57,932 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 16:54:57,933 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 16:54:57,940 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:54:57 BoogieIcfgContainer
[2020-09-24 16:54:57,940 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 16:54:57,942 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 16:54:57,942 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 16:54:57,945 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 16:54:57,946 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:54:55" (1/3) ...
[2020-09-24 16:54:57,947 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16780e3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:54:57, skipping insertion in model container
[2020-09-24 16:54:57,947 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:54:56" (2/3) ...
[2020-09-24 16:54:57,947 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16780e3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:54:57, skipping insertion in model container
[2020-09-24 16:54:57,947 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:54:57" (3/3) ...
[2020-09-24 16:54:57,950 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec4_product39.cil.c
[2020-09-24 16:54:57,961 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 16:54:57,973 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 16:54:57,998 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 16:54:58,029 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 16:54:58,029 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 16:54:58,029 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 16:54:58,030 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 16:54:58,030 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 16:54:58,030 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 16:54:58,030 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 16:54:58,030 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 16:54:58,063 INFO  L276                IsEmpty]: Start isEmpty. Operand 312 states.
[2020-09-24 16:54:58,080 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 143
[2020-09-24 16:54:58,080 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:54:58,082 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]
[2020-09-24 16:54:58,082 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:54:58,090 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:54:58,090 INFO  L82        PathProgramCache]: Analyzing trace with hash 1206638140, now seen corresponding path program 1 times
[2020-09-24 16:54:58,102 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:54:58,102 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [155108702]
[2020-09-24 16:54:58,103 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:54:58,401 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:54:58,629 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:54:58,854 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:00,428 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:01,519 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:05,748 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:18,644 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:55:18,644 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 173
[2020-09-24 16:55:18,644 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-24 16:55:18,645 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 20231
[2020-09-24 16:55:18,646 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:55:18,646 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 16:55:18,646 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 80
[2020-09-24 16:55:18,647 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 77
[2020-09-24 16:55:18,647 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:55:19,100 WARN  L193               SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:55:19,105 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:55:19,187 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:55:19,227 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:19,423 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:55:19,424 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:55:19,424 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:55:19,424 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 235
[2020-09-24 16:55:19,424 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:55:19,425 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:55:19,425 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:55:19,425 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 76
[2020-09-24 16:55:19,425 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:55:19,506 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:55:19,508 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:55:19,510 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:19,513 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:55:19,514 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:55:19,514 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:55:19,514 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:55:19,515 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:55:19,515 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:55:19,515 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:55:19,515 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:55:19,516 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:55:19,518 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:55:19,523 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:55:19,525 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:19,529 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:55:19,529 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:55:19,530 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:55:19,530 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 16:55:19,530 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:55:19,530 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:55:19,531 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:55:19,531 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:55:19,531 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:55:19,534 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:55:19,535 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:55:19,538 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:19,559 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:55:19,559 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:55:19,560 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:55:19,560 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 22
[2020-09-24 16:55:19,560 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:55:19,561 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:55:19,561 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:55:19,561 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:55:19,561 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:55:19,565 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:55:19,566 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:55:19,568 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:19,571 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:55:19,571 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:55:19,572 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:55:19,572 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:55:19,572 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:55:19,572 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:55:19,573 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:55:19,573 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:55:19,573 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:55:19,577 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2020-09-24 16:55:19,578 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:55:19,581 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:19,588 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:55:19,589 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:55:19,589 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:55:19,589 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 16:55:19,589 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:55:19,590 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 16:55:19,590 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:55:19,590 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:55:19,590 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:55:19,641 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130
[2020-09-24 16:55:19,642 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:55:19,644 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:19,652 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:55:19,653 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:55:19,653 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:55:19,653 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 16:55:19,654 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:55:19,654 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:55:19,654 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:55:19,655 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:55:19,655 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:55:19,700 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 16:55:19,701 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [155108702]
[2020-09-24 16:55:19,704 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:55:19,704 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-09-24 16:55:19,706 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93693017]
[2020-09-24 16:55:19,715 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-24 16:55:19,716 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:55:19,735 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-24 16:55:19,738 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-09-24 16:55:19,742 INFO  L87              Difference]: Start difference. First operand 312 states. Second operand 9 states.
[2020-09-24 16:55:20,538 WARN  L193               SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:55:21,889 WARN  L193               SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:55:22,677 WARN  L193               SmtUtils]: Spent 695.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192
[2020-09-24 16:55:23,153 WARN  L193               SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:55:23,562 WARN  L193               SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-24 16:55:23,935 WARN  L193               SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:55:24,252 WARN  L193               SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:55:24,532 WARN  L193               SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 192
[2020-09-24 16:55:25,194 WARN  L193               SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:55:27,159 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:55:27,160 INFO  L93              Difference]: Finished difference Result 654 states and 822 transitions.
[2020-09-24 16:55:27,166 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2020-09-24 16:55:27,168 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 142
[2020-09-24 16:55:27,169 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:55:27,191 INFO  L225             Difference]: With dead ends: 654
[2020-09-24 16:55:27,191 INFO  L226             Difference]: Without dead ends: 453
[2020-09-24 16:55:27,198 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306
[2020-09-24 16:55:27,222 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 453 states.
[2020-09-24 16:55:27,347 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 407.
[2020-09-24 16:55:27,349 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 407 states.
[2020-09-24 16:55:27,352 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 472 transitions.
[2020-09-24 16:55:27,355 INFO  L78                 Accepts]: Start accepts. Automaton has 407 states and 472 transitions. Word has length 142
[2020-09-24 16:55:27,356 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:55:27,356 INFO  L479      AbstractCegarLoop]: Abstraction has 407 states and 472 transitions.
[2020-09-24 16:55:27,356 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-24 16:55:27,356 INFO  L276                IsEmpty]: Start isEmpty. Operand 407 states and 472 transitions.
[2020-09-24 16:55:27,363 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 149
[2020-09-24 16:55:27,363 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:55:27,363 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]
[2020-09-24 16:55:27,364 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 16:55:27,364 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:55:27,364 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:55:27,364 INFO  L82        PathProgramCache]: Analyzing trace with hash -2132152883, now seen corresponding path program 1 times
[2020-09-24 16:55:27,365 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:55:27,365 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1890871362]
[2020-09-24 16:55:27,365 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:55:27,419 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:55:27,472 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:27,556 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:28,446 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:32,456 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:35,395 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:55:35,395 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 181
[2020-09-24 16:55:35,396 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-24 16:55:35,396 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7973
[2020-09-24 16:55:35,396 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:55:35,396 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 16:55:35,396 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-24 16:55:35,396 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 99
[2020-09-24 16:55:35,396 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:55:35,735 WARN  L193               SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:55:35,737 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:55:35,764 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:55:35,797 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:35,999 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:55:35,999 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:55:35,999 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:55:36,000 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 233
[2020-09-24 16:55:36,000 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:55:36,000 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:55:36,000 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:55:36,001 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-24 16:55:36,001 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:55:36,036 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:55:36,037 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:55:36,039 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:36,041 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:55:36,041 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:55:36,041 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:55:36,042 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:55:36,042 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:55:36,042 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:55:36,042 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:55:36,042 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:55:36,043 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:55:36,048 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:55:36,049 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:55:36,051 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:36,053 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:55:36,053 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:55:36,053 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:55:36,054 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:55:36,054 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:55:36,054 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:55:36,054 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:55:36,054 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:55:36,055 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:55:36,057 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:55:36,059 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:55:36,061 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:36,067 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:55:36,068 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:55:36,068 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:55:36,068 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 16:55:36,069 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:55:36,069 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:55:36,069 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:55:36,069 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:55:36,069 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:55:36,072 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:55:36,073 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:55:36,074 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:36,076 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:55:36,076 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:55:36,076 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:55:36,077 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:55:36,077 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:55:36,077 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:55:36,077 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:55:36,077 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:55:36,078 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:55:36,093 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117
[2020-09-24 16:55:36,094 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:55:36,095 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:36,102 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:55:36,102 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 16:55:36,102 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:55:36,103 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 16:55:36,103 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:55:36,103 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:55:36,103 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:55:36,104 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 16:55:36,104 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:55:36,106 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126
[2020-09-24 16:55:36,106 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:55:36,108 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:36,110 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:55:36,110 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:55:36,111 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:55:36,111 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:55:36,111 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:55:36,111 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:55:36,111 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:55:36,112 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:55:36,112 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:55:36,117 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136
[2020-09-24 16:55:36,118 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:55:36,120 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:36,126 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:55:36,127 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:55:36,127 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:55:36,128 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 16:55:36,128 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:55:36,128 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 16:55:36,129 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:55:36,129 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:55:36,129 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:55:36,227 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 16:55:36,227 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1890871362]
[2020-09-24 16:55:36,233 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:55:36,233 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-09-24 16:55:36,233 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340165941]
[2020-09-24 16:55:36,238 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-24 16:55:36,239 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:55:36,240 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-24 16:55:36,240 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-09-24 16:55:36,241 INFO  L87              Difference]: Start difference. First operand 407 states and 472 transitions. Second operand 9 states.
[2020-09-24 16:55:36,916 WARN  L193               SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:55:38,727 WARN  L193               SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:55:39,082 WARN  L193               SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:55:39,472 WARN  L193               SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 16:55:40,062 WARN  L193               SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:55:40,375 WARN  L193               SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:55:40,685 WARN  L193               SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:55:41,004 WARN  L193               SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:55:41,300 WARN  L193               SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:55:42,359 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:55:42,359 INFO  L93              Difference]: Finished difference Result 964 states and 1319 transitions.
[2020-09-24 16:55:42,360 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2020-09-24 16:55:42,360 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 148
[2020-09-24 16:55:42,361 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:55:42,368 INFO  L225             Difference]: With dead ends: 964
[2020-09-24 16:55:42,368 INFO  L226             Difference]: Without dead ends: 667
[2020-09-24 16:55:42,372 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342
[2020-09-24 16:55:42,373 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 667 states.
[2020-09-24 16:55:42,470 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 551.
[2020-09-24 16:55:42,470 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 551 states.
[2020-09-24 16:55:42,474 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 687 transitions.
[2020-09-24 16:55:42,475 INFO  L78                 Accepts]: Start accepts. Automaton has 551 states and 687 transitions. Word has length 148
[2020-09-24 16:55:42,476 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:55:42,476 INFO  L479      AbstractCegarLoop]: Abstraction has 551 states and 687 transitions.
[2020-09-24 16:55:42,476 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-24 16:55:42,476 INFO  L276                IsEmpty]: Start isEmpty. Operand 551 states and 687 transitions.
[2020-09-24 16:55:42,481 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 221
[2020-09-24 16:55:42,481 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:55:42,482 INFO  L422         BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 16:55:42,482 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 16:55:42,482 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:55:42,482 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:55:42,482 INFO  L82        PathProgramCache]: Analyzing trace with hash 949099646, now seen corresponding path program 1 times
[2020-09-24 16:55:42,483 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:55:42,483 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [332740699]
[2020-09-24 16:55:42,483 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:55:42,528 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:55:42,575 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:42,665 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:42,788 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:42,977 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:43,078 FATAL L256   erpolLogProxyWrapper]: Now shrinking...