/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_product28.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 16:50:49,179 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 16:50:49,184 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 16:50:49,226 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 16:50:49,228 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 16:50:49,240 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 16:50:49,241 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 16:50:49,245 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 16:50:49,248 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 16:50:49,251 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 16:50:49,253 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 16:50:49,255 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 16:50:49,255 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 16:50:49,258 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 16:50:49,261 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 16:50:49,263 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 16:50:49,265 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 16:50:49,266 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 16:50:49,268 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 16:50:49,277 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 16:50:49,280 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 16:50:49,281 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 16:50:49,282 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 16:50:49,283 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 16:50:49,286 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 16:50:49,286 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 16:50:49,286 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 16:50:49,290 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 16:50:49,291 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 16:50:49,293 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 16:50:49,293 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 16:50:49,294 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 16:50:49,296 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 16:50:49,296 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 16:50:49,298 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 16:50:49,299 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 16:50:49,300 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 16:50:49,300 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 16:50:49,300 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 16:50:49,301 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 16:50:49,303 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 16:50:49,304 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 16:50:49,351 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 16:50:49,351 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 16:50:49,354 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 16:50:49,354 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 16:50:49,355 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 16:50:49,355 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 16:50:49,355 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 16:50:49,355 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 16:50:49,355 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 16:50:49,356 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 16:50:49,357 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 16:50:49,357 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 16:50:49,357 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 16:50:49,358 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 16:50:49,358 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 16:50:49,358 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 16:50:49,359 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 16:50:49,359 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 16:50:49,359 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 16:50:49,359 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 16:50:49,359 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 16:50:49,360 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:50:49,360 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 16:50:49,360 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 16:50:49,360 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 16:50:49,360 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 16:50:49,361 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 16:50:49,361 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 16:50:49,361 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 16:50:49,361 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 16:50:49,801 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 16:50:49,828 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 16:50:49,835 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 16:50:49,837 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 16:50:49,837 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 16:50:49,839 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product28.cil.c
[2020-09-24 16:50:49,910 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/38184ba99/cebf5f85d03e4c42a31ccda08b7c0c80/FLAGca7c31be0
[2020-09-24 16:50:50,486 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 16:50:50,487 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product28.cil.c
[2020-09-24 16:50:50,505 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/38184ba99/cebf5f85d03e4c42a31ccda08b7c0c80/FLAGca7c31be0
[2020-09-24 16:50:50,752 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/38184ba99/cebf5f85d03e4c42a31ccda08b7c0c80
[2020-09-24 16:50:50,769 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 16:50:50,777 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 16:50:50,781 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 16:50:50,781 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 16:50:50,786 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 16:50:50,787 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:50:50" (1/1) ...
[2020-09-24 16:50:50,792 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27030054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:50, skipping insertion in model container
[2020-09-24 16:50:50,793 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:50:50" (1/1) ...
[2020-09-24 16:50:50,803 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 16:50:50,876 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 16:50:51,320 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:50:51,439 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 16:50:51,599 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:50:51,641 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 16:50:51,642 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:51 WrapperNode
[2020-09-24 16:50:51,642 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 16:50:51,643 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 16:50:51,643 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 16:50:51,643 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 16:50:51,659 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:51" (1/1) ...
[2020-09-24 16:50:51,659 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:51" (1/1) ...
[2020-09-24 16:50:51,680 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:51" (1/1) ...
[2020-09-24 16:50:51,681 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:51" (1/1) ...
[2020-09-24 16:50:51,715 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:51" (1/1) ...
[2020-09-24 16:50:51,726 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:51" (1/1) ...
[2020-09-24 16:50:51,732 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:51" (1/1) ...
[2020-09-24 16:50:51,739 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 16:50:51,740 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 16:50:51,740 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 16:50:51,740 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 16:50:51,742 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:51" (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 16:50:51,820 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 16:50:51,821 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 16:50:51,822 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:50:51,823 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 16:50:51,823 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 16:50:51,823 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 16:50:51,823 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 16:50:51,823 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 16:50:51,824 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 16:50:51,825 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 16:50:51,825 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor
[2020-09-24 16:50:51,825 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 16:50:51,825 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 16:50:51,825 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 16:50:51,826 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 16:50:51,827 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 16:50:51,827 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-24 16:50:51,827 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-24 16:50:51,827 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-24 16:50:51,828 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 16:50:51,828 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 16:50:51,829 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 16:50:51,829 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 16:50:51,829 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 16:50:51,831 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 16:50:51,832 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 16:50:51,832 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-24 16:50:51,832 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 16:50:51,832 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 16:50:51,833 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 16:50:51,833 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 16:50:51,833 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 16:50:51,833 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 16:50:51,833 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-24 16:50:51,833 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 16:50:51,834 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 16:50:51,834 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:50:51,834 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 16:50:51,834 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 16:50:51,834 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 16:50:51,834 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 16:50:51,835 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 16:50:51,835 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 16:50:51,835 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 16:50:51,835 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 16:50:51,836 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 16:50:51,837 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 16:50:51,837 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 16:50:51,837 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 16:50:51,837 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 16:50:51,837 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-24 16:50:51,837 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 16:50:51,838 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 16:50:51,838 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 16:50:51,838 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 16:50:51,838 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 16:50:51,839 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-24 16:50:51,839 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-24 16:50:51,839 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-24 16:50:51,839 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 16:50:51,839 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 16:50:51,839 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-24 16:50:51,840 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor
[2020-09-24 16:50:51,840 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 16:50:51,840 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 16:50:51,840 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 16:50:51,840 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 16:50:51,840 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 16:50:51,840 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 16:50:51,841 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 16:50:51,841 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 16:50:51,842 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 16:50:51,842 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 16:50:51,843 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 16:50:51,843 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 16:50:51,844 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 16:50:51,844 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 16:50:51,844 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 16:50:51,844 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 16:50:51,844 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 16:50:51,844 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 16:50:51,845 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 16:50:51,845 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 16:50:51,845 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 16:50:51,845 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 16:50:51,845 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:50:51,845 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:50:51,846 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 16:50:51,846 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 16:50:51,846 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 16:50:51,846 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 16:50:51,846 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 16:50:51,846 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 16:50:51,846 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 16:50:53,026 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 16:50:53,026 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 16:50:53,042 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:50:53 BoogieIcfgContainer
[2020-09-24 16:50:53,043 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 16:50:53,045 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 16:50:53,045 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 16:50:53,049 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 16:50:53,050 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:50:50" (1/3) ...
[2020-09-24 16:50:53,051 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eec10c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:50:53, skipping insertion in model container
[2020-09-24 16:50:53,051 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:51" (2/3) ...
[2020-09-24 16:50:53,052 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eec10c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:50:53, skipping insertion in model container
[2020-09-24 16:50:53,052 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:50:53" (3/3) ...
[2020-09-24 16:50:53,054 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product28.cil.c
[2020-09-24 16:50:53,066 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 16:50:53,076 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 16:50:53,099 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 16:50:53,130 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 16:50:53,130 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 16:50:53,130 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 16:50:53,131 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 16:50:53,131 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 16:50:53,131 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 16:50:53,131 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 16:50:53,131 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 16:50:53,159 INFO  L276                IsEmpty]: Start isEmpty. Operand 312 states.
[2020-09-24 16:50:53,178 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-24 16:50:53,178 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:50:53,180 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 16:50:53,180 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:50:53,188 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:50:53,188 INFO  L82        PathProgramCache]: Analyzing trace with hash 1905765184, now seen corresponding path program 1 times
[2020-09-24 16:50:53,200 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:50:53,200 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2137797035]
[2020-09-24 16:50:53,200 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:50:53,555 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:53,684 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:53,890 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:55,377 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:59,401 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:59,402 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-24 16:50:59,402 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 16:50:59,402 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5836
[2020-09-24 16:50:59,404 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:59,405 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:50:59,405 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 129
[2020-09-24 16:50:59,405 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:50:59,405 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 16:50:59,832 WARN  L193               SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:50:59,838 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:50:59,868 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:59,883 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:00,024 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:00,025 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:51:00,025 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:00,025 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 155
[2020-09-24 16:51:00,026 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:00,026 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:51:00,027 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:51:00,027 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:51:00,027 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:51:00,113 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:51:00,114 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:00,116 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:00,118 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:00,118 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:51:00,119 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:00,119 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:51:00,119 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:00,119 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:51:00,120 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:51:00,120 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:51:00,121 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:51:00,124 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:51:00,124 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:00,126 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:00,128 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:00,128 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:51:00,129 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:00,129 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:51:00,129 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:00,130 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:51:00,130 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:51:00,131 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:51:00,131 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:51:00,134 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:51:00,135 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:00,137 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:00,143 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:00,143 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:51:00,144 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:00,144 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 16:51:00,145 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:00,145 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:51:00,146 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:51:00,146 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:51:00,146 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:51:00,149 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:51:00,150 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:00,152 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:00,154 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:00,154 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:51:00,154 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:00,154 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:51:00,155 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:00,155 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:51:00,155 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:51:00,155 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:51:00,156 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:51:00,158 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 16:51:00,159 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:00,161 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:00,163 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:00,164 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:51:00,164 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:00,164 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:51:00,164 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:00,165 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:51:00,165 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:51:00,165 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:51:00,165 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:51:00,168 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 16:51:00,171 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:00,172 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:00,176 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:00,176 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:51:00,176 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:00,176 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:51:00,177 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:00,177 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:51:00,177 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:51:00,177 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:51:00,178 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:51:00,180 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-24 16:51:00,183 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:00,185 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:00,189 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:00,189 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:51:00,189 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:00,190 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:51:00,190 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:00,190 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:51:00,190 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:51:00,190 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:51:00,191 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:51:00,227 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 16:51:00,228 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2137797035]
[2020-09-24 16:51:00,230 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:51:00,230 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 16:51:00,232 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635984487]
[2020-09-24 16:51:00,241 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 16:51:00,242 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:51:00,260 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 16:51:00,261 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 16:51:00,263 INFO  L87              Difference]: Start difference. First operand 312 states. Second operand 3 states.
[2020-09-24 16:51:01,792 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:51:01,792 INFO  L93              Difference]: Finished difference Result 458 states and 546 transitions.
[2020-09-24 16:51:01,793 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-09-24 16:51:01,794 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 153
[2020-09-24 16:51:01,796 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:51:01,816 INFO  L225             Difference]: With dead ends: 458
[2020-09-24 16:51:01,816 INFO  L226             Difference]: Without dead ends: 287
[2020-09-24 16:51:01,822 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 16:51:01,848 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 287 states.
[2020-09-24 16:51:01,970 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 245.
[2020-09-24 16:51:01,976 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 245 states.
[2020-09-24 16:51:01,979 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 265 transitions.
[2020-09-24 16:51:01,982 INFO  L78                 Accepts]: Start accepts. Automaton has 245 states and 265 transitions. Word has length 153
[2020-09-24 16:51:01,985 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:51:01,985 INFO  L479      AbstractCegarLoop]: Abstraction has 245 states and 265 transitions.
[2020-09-24 16:51:01,985 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 16:51:01,986 INFO  L276                IsEmpty]: Start isEmpty. Operand 245 states and 265 transitions.
[2020-09-24 16:51:02,000 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 155
[2020-09-24 16:51:02,000 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:51:02,001 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 16:51:02,002 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 16:51:02,002 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:51:02,002 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:51:02,008 INFO  L82        PathProgramCache]: Analyzing trace with hash 319840535, now seen corresponding path program 1 times
[2020-09-24 16:51:02,008 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:51:02,011 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [276752735]
[2020-09-24 16:51:02,011 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:51:02,069 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:02,143 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:02,250 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:03,886 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:09,694 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:09,694 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 187
[2020-09-24 16:51:09,695 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 16:51:09,695 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7620
[2020-09-24 16:51:09,695 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:09,695 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 16:51:09,696 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 79
[2020-09-24 16:51:09,696 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 92
[2020-09-24 16:51:09,696 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:51:10,049 WARN  L193               SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:51:10,051 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:51:10,082 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:10,116 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:10,306 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:10,306 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:51:10,306 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:10,307 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 222
[2020-09-24 16:51:10,307 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:10,307 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:51:10,307 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:51:10,308 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-24 16:51:10,308 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:51:10,345 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:51:10,346 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:10,348 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:10,350 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:10,350 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:51:10,350 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:10,351 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:51:10,351 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:10,351 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:51:10,351 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:51:10,352 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:51:10,352 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:51:10,353 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:51:10,354 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:10,355 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:10,357 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:10,357 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:51:10,357 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:10,358 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:51:10,358 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:10,358 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:51:10,358 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:51:10,359 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:51:10,359 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:51:10,360 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:51:10,361 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:10,363 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:10,369 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:10,370 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:51:10,370 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:10,370 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 16:51:10,370 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:10,370 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:51:10,371 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:51:10,371 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:51:10,371 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:51:10,373 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:51:10,374 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:10,375 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:10,377 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:10,377 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:51:10,377 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:10,378 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:51:10,378 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:10,378 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:51:10,378 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:51:10,379 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:51:10,379 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:51:10,380 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122
[2020-09-24 16:51:10,381 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:10,383 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:10,386 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:10,386 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:51:10,386 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:10,386 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:51:10,387 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:10,387 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:51:10,387 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:51:10,387 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:51:10,387 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:51:10,389 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132
[2020-09-24 16:51:10,390 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:10,392 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:10,398 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:10,398 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:51:10,398 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:10,398 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 16:51:10,399 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:10,399 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 16:51:10,399 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:51:10,399 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:51:10,400 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:51:10,425 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142
[2020-09-24 16:51:10,426 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:10,428 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:10,429 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:51:10,430 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:51:10,430 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:51:10,430 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:51:10,430 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:51:10,430 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:51:10,431 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:51:10,431 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:51:10,431 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:51:10,466 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 16:51:10,466 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [276752735]
[2020-09-24 16:51:10,467 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:51:10,467 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-24 16:51:10,467 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802872813]
[2020-09-24 16:51:10,469 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-24 16:51:10,470 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:51:10,470 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-24 16:51:10,470 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-24 16:51:10,470 INFO  L87              Difference]: Start difference. First operand 245 states and 265 transitions. Second operand 8 states.
[2020-09-24 16:51:10,958 WARN  L193               SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:51:12,533 WARN  L193               SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:51:12,903 WARN  L193               SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:51:13,323 WARN  L193               SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:51:13,701 WARN  L193               SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:51:14,034 WARN  L193               SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:51:14,366 WARN  L193               SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:51:14,687 WARN  L193               SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:51:15,549 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:51:15,550 INFO  L93              Difference]: Finished difference Result 554 states and 656 transitions.
[2020-09-24 16:51:15,550 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-24 16:51:15,551 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 154
[2020-09-24 16:51:15,552 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:51:15,557 INFO  L225             Difference]: With dead ends: 554
[2020-09-24 16:51:15,557 INFO  L226             Difference]: Without dead ends: 419
[2020-09-24 16:51:15,563 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-24 16:51:15,565 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 419 states.
[2020-09-24 16:51:15,634 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 372.
[2020-09-24 16:51:15,634 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 372 states.
[2020-09-24 16:51:15,637 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 420 transitions.
[2020-09-24 16:51:15,637 INFO  L78                 Accepts]: Start accepts. Automaton has 372 states and 420 transitions. Word has length 154
[2020-09-24 16:51:15,638 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:51:15,638 INFO  L479      AbstractCegarLoop]: Abstraction has 372 states and 420 transitions.
[2020-09-24 16:51:15,638 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-24 16:51:15,638 INFO  L276                IsEmpty]: Start isEmpty. Operand 372 states and 420 transitions.
[2020-09-24 16:51:15,641 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 160
[2020-09-24 16:51:15,641 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:51:15,641 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 16:51:15,641 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 16:51:15,642 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:51:15,642 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:51:15,642 INFO  L82        PathProgramCache]: Analyzing trace with hash -1786732939, now seen corresponding path program 1 times
[2020-09-24 16:51:15,642 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:51:15,643 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [494004929]
[2020-09-24 16:51:15,643 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:51:15,688 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:51:15,739 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:15,825 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:15,944 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:21,163 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:51:21,902 FATAL L256   erpolLogProxyWrapper]: Now shrinking...