/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_product51.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 16:55:44,838 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 16:55:44,842 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 16:55:44,882 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 16:55:44,883 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 16:55:44,891 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 16:55:44,894 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 16:55:44,897 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 16:55:44,900 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 16:55:44,903 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 16:55:44,904 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 16:55:44,905 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 16:55:44,905 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 16:55:44,908 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 16:55:44,911 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 16:55:44,912 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 16:55:44,914 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 16:55:44,917 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 16:55:44,918 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 16:55:44,928 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 16:55:44,931 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 16:55:44,932 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 16:55:44,933 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 16:55:44,934 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 16:55:44,951 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 16:55:44,952 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 16:55:44,952 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 16:55:44,953 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 16:55:44,953 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 16:55:44,954 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 16:55:44,954 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 16:55:44,955 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 16:55:44,959 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 16:55:44,960 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 16:55:44,961 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 16:55:44,961 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 16:55:44,965 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 16:55:44,966 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 16:55:44,966 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 16:55:44,967 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 16:55:44,968 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 16:55:44,969 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 16:55:45,014 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 16:55:45,015 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 16:55:45,016 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 16:55:45,017 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 16:55:45,017 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 16:55:45,017 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 16:55:45,018 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 16:55:45,018 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 16:55:45,018 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 16:55:45,018 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 16:55:45,019 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 16:55:45,019 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 16:55:45,020 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 16:55:45,020 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 16:55:45,021 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 16:55:45,021 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 16:55:45,021 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 16:55:45,021 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 16:55:45,022 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 16:55:45,022 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 16:55:45,022 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 16:55:45,023 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:55:45,023 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 16:55:45,023 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 16:55:45,023 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 16:55:45,023 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 16:55:45,024 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 16:55:45,024 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 16:55:45,024 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 16:55:45,024 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 16:55:45,482 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 16:55:45,503 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 16:55:45,507 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 16:55:45,509 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 16:55:45,510 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 16:55:45,511 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product51.cil.c
[2020-09-24 16:55:45,608 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8a37c5b30/da59aa2d23e4482a8bafefcd2552aec0/FLAGf23858217
[2020-09-24 16:55:46,227 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 16:55:46,228 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product51.cil.c
[2020-09-24 16:55:46,247 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8a37c5b30/da59aa2d23e4482a8bafefcd2552aec0/FLAGf23858217
[2020-09-24 16:55:46,514 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8a37c5b30/da59aa2d23e4482a8bafefcd2552aec0
[2020-09-24 16:55:46,528 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 16:55:46,534 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 16:55:46,535 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 16:55:46,535 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 16:55:46,541 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 16:55:46,543 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:55:46" (1/1) ...
[2020-09-24 16:55:46,548 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4550a7af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:46, skipping insertion in model container
[2020-09-24 16:55:46,548 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:55:46" (1/1) ...
[2020-09-24 16:55:46,559 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 16:55:46,614 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 16:55:47,147 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:55:47,163 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 16:55:47,248 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:55:47,290 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 16:55:47,291 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:47 WrapperNode
[2020-09-24 16:55:47,291 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 16:55:47,292 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 16:55:47,292 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 16:55:47,292 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 16:55:47,309 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:47" (1/1) ...
[2020-09-24 16:55:47,309 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:47" (1/1) ...
[2020-09-24 16:55:47,329 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:47" (1/1) ...
[2020-09-24 16:55:47,330 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:47" (1/1) ...
[2020-09-24 16:55:47,370 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:47" (1/1) ...
[2020-09-24 16:55:47,382 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:47" (1/1) ...
[2020-09-24 16:55:47,388 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:47" (1/1) ...
[2020-09-24 16:55:47,396 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 16:55:47,397 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 16:55:47,397 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 16:55:47,397 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 16:55:47,399 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:47" (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 16:55:47,502 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 16:55:47,503 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 16:55:47,503 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:55:47,503 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 16:55:47,503 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 16:55:47,504 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 16:55:47,504 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 16:55:47,504 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 16:55:47,504 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1
[2020-09-24 16:55:47,504 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 16:55:47,505 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 16:55:47,505 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 16:55:47,505 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 16:55:47,505 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 16:55:47,505 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 16:55:47,506 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-24 16:55:47,506 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-24 16:55:47,506 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 16:55:47,506 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 16:55:47,507 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 16:55:47,507 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 16:55:47,507 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 16:55:47,507 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 16:55:47,507 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-24 16:55:47,508 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 16:55:47,509 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 16:55:47,509 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 16:55:47,509 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 16:55:47,510 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 16:55:47,510 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 16:55:47,510 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-24 16:55:47,510 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-24 16:55:47,510 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-24 16:55:47,510 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 16:55:47,511 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 16:55:47,511 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 16:55:47,511 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 16:55:47,511 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:55:47,511 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 16:55:47,511 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 16:55:47,512 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 16:55:47,512 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 16:55:47,512 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 16:55:47,512 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 16:55:47,512 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 16:55:47,512 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 16:55:47,513 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 16:55:47,513 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 16:55:47,513 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 16:55:47,513 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 16:55:47,513 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 16:55:47,513 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 16:55:47,514 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 16:55:47,514 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 16:55:47,514 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 16:55:47,515 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 16:55:47,515 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 16:55:47,515 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 16:55:47,515 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 16:55:47,515 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 16:55:47,516 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1
[2020-09-24 16:55:47,516 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 16:55:47,516 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 16:55:47,516 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 16:55:47,516 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-24 16:55:47,517 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-24 16:55:47,517 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 16:55:47,517 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 16:55:47,517 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 16:55:47,517 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 16:55:47,518 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-24 16:55:47,519 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 16:55:47,519 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 16:55:47,520 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-24 16:55:47,521 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-24 16:55:47,521 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-24 16:55:47,521 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 16:55:47,521 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 16:55:47,521 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 16:55:47,521 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 16:55:47,521 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 16:55:47,522 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 16:55:47,523 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 16:55:47,523 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 16:55:47,523 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 16:55:47,523 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 16:55:47,523 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 16:55:47,524 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:55:47,524 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:55:47,524 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 16:55:47,524 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 16:55:47,524 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 16:55:47,524 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 16:55:47,524 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 16:55:47,525 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 16:55:47,525 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 16:55:48,774 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 16:55:48,775 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 16:55:48,783 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:55:48 BoogieIcfgContainer
[2020-09-24 16:55:48,783 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 16:55:48,784 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 16:55:48,784 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 16:55:48,788 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 16:55:48,788 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:55:46" (1/3) ...
[2020-09-24 16:55:48,789 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cd10751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:55:48, skipping insertion in model container
[2020-09-24 16:55:48,790 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:47" (2/3) ...
[2020-09-24 16:55:48,790 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cd10751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:55:48, skipping insertion in model container
[2020-09-24 16:55:48,790 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:55:48" (3/3) ...
[2020-09-24 16:55:48,793 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec4_product51.cil.c
[2020-09-24 16:55:48,805 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 16:55:48,817 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 16:55:48,841 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 16:55:48,877 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 16:55:48,877 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 16:55:48,877 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 16:55:48,878 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 16:55:48,878 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 16:55:48,878 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 16:55:48,878 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 16:55:48,878 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 16:55:48,910 INFO  L276                IsEmpty]: Start isEmpty. Operand 318 states.
[2020-09-24 16:55:48,929 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 143
[2020-09-24 16:55:48,929 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:55:48,930 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 16:55:48,931 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:55:48,938 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:55:48,938 INFO  L82        PathProgramCache]: Analyzing trace with hash -2089318466, now seen corresponding path program 1 times
[2020-09-24 16:55:48,950 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:55:48,950 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1607046525]
[2020-09-24 16:55:48,951 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:55:49,302 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:55:49,472 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:49,667 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:50,966 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:51,937 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:01,252 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:03,217 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:03,218 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 173
[2020-09-24 16:56:03,219 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-24 16:56:03,219 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 13904
[2020-09-24 16:56:03,221 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:03,222 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 16:56:03,222 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-24 16:56:03,231 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 79
[2020-09-24 16:56:03,232 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 11
[2020-09-24 16:56:03,791 WARN  L193               SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:56:03,797 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:56:03,884 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:03,927 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:04,134 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:04,135 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:56:04,135 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:04,135 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 249
[2020-09-24 16:56:04,136 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:04,136 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:56:04,136 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:04,136 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-24 16:56:04,137 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:56:04,199 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:56:04,201 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:04,202 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:04,204 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:04,205 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:56:04,205 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:04,205 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:56:04,205 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:04,206 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:56:04,206 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:04,206 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:56:04,206 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:56:04,208 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:56:04,209 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:04,210 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:04,213 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:04,213 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:56:04,213 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:04,213 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:56:04,213 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:04,214 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:56:04,214 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:04,214 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:56:04,214 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:56:04,216 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:56:04,217 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:04,219 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:04,226 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:04,226 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:56:04,227 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:04,227 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 16:56:04,227 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:04,228 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:56:04,228 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:04,228 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:56:04,228 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:56:04,230 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:56:04,231 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:04,233 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:04,235 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:04,235 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:56:04,235 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:04,236 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:56:04,236 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:04,236 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:56:04,236 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:04,237 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:56:04,237 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:56:04,240 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2020-09-24 16:56:04,241 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:04,243 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:04,249 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:04,249 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:56:04,250 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:04,250 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 16:56:04,250 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:04,251 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 16:56:04,251 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:04,251 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:56:04,252 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:56:04,285 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130
[2020-09-24 16:56:04,286 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:04,288 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:04,291 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:04,291 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:56:04,292 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:04,292 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:56:04,293 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:04,293 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:56:04,294 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:56:04,294 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:56:04,295 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:56:04,381 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 16:56:04,382 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1607046525]
[2020-09-24 16:56:04,385 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:56:04,386 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-24 16:56:04,387 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99532852]
[2020-09-24 16:56:04,402 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-24 16:56:04,403 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:56:04,426 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-24 16:56:04,428 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-24 16:56:04,433 INFO  L87              Difference]: Start difference. First operand 318 states. Second operand 8 states.
[2020-09-24 16:56:05,116 WARN  L193               SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:56:06,056 WARN  L193               SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:56:06,382 WARN  L193               SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:56:06,824 WARN  L193               SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:56:07,183 WARN  L193               SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:56:07,522 WARN  L193               SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:56:07,925 WARN  L193               SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:56:08,239 WARN  L193               SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:56:10,502 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:56:10,502 INFO  L93              Difference]: Finished difference Result 669 states and 825 transitions.
[2020-09-24 16:56:10,504 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-24 16:56:10,506 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 142
[2020-09-24 16:56:10,508 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:56:10,547 INFO  L225             Difference]: With dead ends: 669
[2020-09-24 16:56:10,547 INFO  L226             Difference]: Without dead ends: 462
[2020-09-24 16:56:10,560 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-24 16:56:10,581 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 462 states.
[2020-09-24 16:56:10,728 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 416.
[2020-09-24 16:56:10,730 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 416 states.
[2020-09-24 16:56:10,733 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 472 transitions.
[2020-09-24 16:56:10,736 INFO  L78                 Accepts]: Start accepts. Automaton has 416 states and 472 transitions. Word has length 142
[2020-09-24 16:56:10,737 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:56:10,738 INFO  L479      AbstractCegarLoop]: Abstraction has 416 states and 472 transitions.
[2020-09-24 16:56:10,738 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-24 16:56:10,738 INFO  L276                IsEmpty]: Start isEmpty. Operand 416 states and 472 transitions.
[2020-09-24 16:56:10,745 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 149
[2020-09-24 16:56:10,745 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:56:10,745 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 16:56:10,746 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 16:56:10,746 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:56:10,746 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:56:10,747 INFO  L82        PathProgramCache]: Analyzing trace with hash -719575793, now seen corresponding path program 1 times
[2020-09-24 16:56:10,747 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:56:10,747 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [958417134]
[2020-09-24 16:56:10,748 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:56:10,805 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:10,857 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:10,948 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:11,850 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:16,025 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:19,133 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:19,134 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 181
[2020-09-24 16:56:19,134 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-24 16:56:19,134 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8324
[2020-09-24 16:56:19,134 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:19,134 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-24 16:56:19,134 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 81
[2020-09-24 16:56:19,135 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 67
[2020-09-24 16:56:19,135 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:56:19,440 WARN  L193               SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:56:19,441 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:56:19,471 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:19,503 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:19,682 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:19,682 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:56:19,683 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:19,683 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 210
[2020-09-24 16:56:19,683 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:19,683 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:56:19,684 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:19,684 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 77
[2020-09-24 16:56:19,684 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:56:19,725 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:56:19,726 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:19,728 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:19,730 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:19,730 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:56:19,730 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:19,731 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:56:19,731 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:19,731 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:56:19,731 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:19,732 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:56:19,732 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:56:19,733 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:56:19,734 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:19,735 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:19,737 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:19,737 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:56:19,738 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:19,738 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:56:19,738 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:19,738 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:56:19,739 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:19,739 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:56:19,739 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:56:19,740 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:56:19,741 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:19,743 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:19,750 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:19,750 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:56:19,750 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:19,751 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 16:56:19,751 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:19,751 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:56:19,751 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:19,752 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:56:19,752 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:56:19,754 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:56:19,754 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:19,756 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:19,758 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:19,758 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:56:19,758 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:19,758 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:56:19,759 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:19,759 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:56:19,759 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:19,759 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:56:19,759 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:56:19,768 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117
[2020-09-24 16:56:19,769 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:19,770 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:19,775 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:19,775 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 16:56:19,776 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:19,776 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 16:56:19,776 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:19,776 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:56:19,776 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:19,777 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 16:56:19,777 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:56:19,778 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126
[2020-09-24 16:56:19,779 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:19,780 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:19,781 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:19,782 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:56:19,782 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:19,782 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:56:19,782 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:19,783 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:56:19,783 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:56:19,783 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:56:19,783 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:56:19,785 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136
[2020-09-24 16:56:19,786 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:19,787 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:19,789 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:19,789 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:56:19,790 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:19,790 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:56:19,790 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:19,791 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:56:19,791 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:56:19,791 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:56:19,792 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:56:19,831 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 16:56:19,832 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [958417134]
[2020-09-24 16:56:19,832 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:56:19,833 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-24 16:56:19,833 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963977250]
[2020-09-24 16:56:19,835 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-24 16:56:19,835 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:56:19,836 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-24 16:56:19,836 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-24 16:56:19,836 INFO  L87              Difference]: Start difference. First operand 416 states and 472 transitions. Second operand 5 states.
[2020-09-24 16:56:20,392 WARN  L193               SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:56:23,202 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:56:23,202 INFO  L93              Difference]: Finished difference Result 1107 states and 1340 transitions.
[2020-09-24 16:56:23,205 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-24 16:56:23,206 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 148
[2020-09-24 16:56:23,207 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:56:23,220 INFO  L225             Difference]: With dead ends: 1107
[2020-09-24 16:56:23,221 INFO  L226             Difference]: Without dead ends: 801
[2020-09-24 16:56:23,223 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-09-24 16:56:23,225 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 801 states.
[2020-09-24 16:56:23,337 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 705.
[2020-09-24 16:56:23,338 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 705 states.
[2020-09-24 16:56:23,342 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 813 transitions.
[2020-09-24 16:56:23,343 INFO  L78                 Accepts]: Start accepts. Automaton has 705 states and 813 transitions. Word has length 148
[2020-09-24 16:56:23,344 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:56:23,344 INFO  L479      AbstractCegarLoop]: Abstraction has 705 states and 813 transitions.
[2020-09-24 16:56:23,344 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-24 16:56:23,344 INFO  L276                IsEmpty]: Start isEmpty. Operand 705 states and 813 transitions.
[2020-09-24 16:56:23,349 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 171
[2020-09-24 16:56:23,349 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:56:23,349 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 16:56:23,350 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 16:56:23,350 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:56:23,350 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:56:23,350 INFO  L82        PathProgramCache]: Analyzing trace with hash -505298140, now seen corresponding path program 1 times
[2020-09-24 16:56:23,351 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:56:23,351 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [871018871]
[2020-09-24 16:56:23,351 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:56:23,392 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:23,439 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:23,613 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:23,928 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:24,712 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:26,373 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:26,714 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:27,035 FATAL L256   erpolLogProxyWrapper]: Now shrinking...