/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product40.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 16:58:07,756 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 16:58:07,761 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 16:58:07,802 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 16:58:07,803 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 16:58:07,812 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 16:58:07,814 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 16:58:07,818 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 16:58:07,820 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 16:58:07,823 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 16:58:07,824 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 16:58:07,825 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 16:58:07,825 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 16:58:07,828 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 16:58:07,830 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 16:58:07,832 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 16:58:07,834 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 16:58:07,835 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 16:58:07,836 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 16:58:07,845 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 16:58:07,847 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 16:58:07,848 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 16:58:07,849 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 16:58:07,850 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 16:58:07,866 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 16:58:07,866 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 16:58:07,867 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 16:58:07,867 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 16:58:07,871 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 16:58:07,872 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 16:58:07,872 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 16:58:07,873 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 16:58:07,874 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 16:58:07,877 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 16:58:07,877 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 16:58:07,881 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 16:58:07,881 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 16:58:07,882 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 16:58:07,883 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 16:58:07,884 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 16:58:07,884 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 16:58:07,885 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-24 16:58:07,908 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 16:58:07,909 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 16:58:07,910 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 16:58:07,910 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 16:58:07,910 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 16:58:07,911 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 16:58:07,911 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 16:58:07,911 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 16:58:07,911 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 16:58:07,911 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 16:58:07,912 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 16:58:07,912 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 16:58:07,912 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 16:58:07,912 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 16:58:07,912 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 16:58:07,913 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 16:58:07,913 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 16:58:07,913 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 16:58:07,913 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 16:58:07,913 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 16:58:07,914 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 16:58:07,914 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:58:07,914 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 16:58:07,914 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 16:58:07,914 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 16:58:07,915 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 16:58:07,915 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 16:58:07,915 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 16:58:07,915 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 16:58:07,915 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true;
[2020-09-24 16:58:08,357 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 16:58:08,384 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 16:58:08,388 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 16:58:08,390 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 16:58:08,391 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 16:58:08,393 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product40.cil.c
[2020-09-24 16:58:08,489 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/30ae3fa5f/a3e48b67f3cc4d92b78854547417d6fa/FLAG47a1ce7b5
[2020-09-24 16:58:09,091 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 16:58:09,092 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product40.cil.c
[2020-09-24 16:58:09,105 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/30ae3fa5f/a3e48b67f3cc4d92b78854547417d6fa/FLAG47a1ce7b5
[2020-09-24 16:58:09,367 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/30ae3fa5f/a3e48b67f3cc4d92b78854547417d6fa
[2020-09-24 16:58:09,380 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 16:58:09,386 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 16:58:09,387 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 16:58:09,387 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 16:58:09,392 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 16:58:09,393 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:58:09" (1/1) ...
[2020-09-24 16:58:09,397 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11967da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:09, skipping insertion in model container
[2020-09-24 16:58:09,398 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:58:09" (1/1) ...
[2020-09-24 16:58:09,409 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 16:58:09,460 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 16:58:09,935 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:58:09,951 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 16:58:10,041 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:58:10,083 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 16:58:10,083 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:10 WrapperNode
[2020-09-24 16:58:10,084 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 16:58:10,084 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 16:58:10,085 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 16:58:10,085 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 16:58:10,100 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:10" (1/1) ...
[2020-09-24 16:58:10,101 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:10" (1/1) ...
[2020-09-24 16:58:10,123 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:10" (1/1) ...
[2020-09-24 16:58:10,124 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:10" (1/1) ...
[2020-09-24 16:58:10,157 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:10" (1/1) ...
[2020-09-24 16:58:10,169 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:10" (1/1) ...
[2020-09-24 16:58:10,175 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:10" (1/1) ...
[2020-09-24 16:58:10,183 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 16:58:10,184 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 16:58:10,184 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 16:58:10,185 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 16:58:10,186 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:10" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:58:10,282 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 16:58:10,282 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 16:58:10,282 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:58:10,283 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 16:58:10,283 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 16:58:10,283 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-24 16:58:10,283 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 16:58:10,284 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 16:58:10,284 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 16:58:10,284 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 16:58:10,284 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 16:58:10,284 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 16:58:10,285 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-24 16:58:10,285 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-24 16:58:10,285 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-24 16:58:10,285 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 16:58:10,285 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 16:58:10,286 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 16:58:10,286 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:58:10,286 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 16:58:10,286 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 16:58:10,286 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 16:58:10,287 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1
[2020-09-24 16:58:10,287 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2
[2020-09-24 16:58:10,287 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3
[2020-09-24 16:58:10,287 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 16:58:10,287 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 16:58:10,288 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 16:58:10,288 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 16:58:10,288 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 16:58:10,288 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 16:58:10,288 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 16:58:10,288 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 16:58:10,288 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 16:58:10,289 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 16:58:10,289 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 16:58:10,289 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 16:58:10,289 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 16:58:10,289 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 16:58:10,289 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 16:58:10,290 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 16:58:10,290 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-24 16:58:10,290 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 16:58:10,290 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 16:58:10,290 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 16:58:10,290 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 16:58:10,291 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 16:58:10,291 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 16:58:10,291 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-24 16:58:10,291 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 16:58:10,291 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 16:58:10,291 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 16:58:10,292 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 16:58:10,292 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 16:58:10,292 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-24 16:58:10,292 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-24 16:58:10,292 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2
[2020-09-24 16:58:10,292 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3
[2020-09-24 16:58:10,293 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 16:58:10,293 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 16:58:10,293 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-24 16:58:10,293 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-24 16:58:10,293 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 16:58:10,293 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 16:58:10,293 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 16:58:10,294 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 16:58:10,294 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 16:58:10,294 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 16:58:10,294 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 16:58:10,294 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 16:58:10,294 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 16:58:10,295 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 16:58:10,295 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 16:58:10,295 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 16:58:10,295 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 16:58:10,295 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 16:58:10,295 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 16:58:10,296 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 16:58:10,296 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:58:10,296 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:58:10,296 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 16:58:10,296 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 16:58:10,296 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 16:58:10,296 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 16:58:10,297 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 16:58:10,297 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 16:58:10,297 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1
[2020-09-24 16:58:10,297 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 16:58:10,297 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 16:58:10,297 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 16:58:10,298 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 16:58:10,298 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 16:58:10,298 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 16:58:10,298 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 16:58:10,298 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 16:58:10,298 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 16:58:10,299 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 16:58:10,299 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 16:58:11,507 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 16:58:11,507 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 16:58:11,515 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:58:11 BoogieIcfgContainer
[2020-09-24 16:58:11,515 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 16:58:11,516 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 16:58:11,516 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 16:58:11,520 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 16:58:11,520 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:58:09" (1/3) ...
[2020-09-24 16:58:11,521 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@727107f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:58:11, skipping insertion in model container
[2020-09-24 16:58:11,521 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:10" (2/3) ...
[2020-09-24 16:58:11,522 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@727107f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:58:11, skipping insertion in model container
[2020-09-24 16:58:11,522 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:58:11" (3/3) ...
[2020-09-24 16:58:11,524 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec5_product40.cil.c
[2020-09-24 16:58:11,536 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 16:58:11,548 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 16:58:11,571 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 16:58:11,605 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 16:58:11,606 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 16:58:11,606 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 16:58:11,606 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 16:58:11,606 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 16:58:11,606 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 16:58:11,606 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 16:58:11,607 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 16:58:11,638 INFO  L276                IsEmpty]: Start isEmpty. Operand 329 states.
[2020-09-24 16:58:11,658 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 161
[2020-09-24 16:58:11,659 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:58:11,660 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 16:58:11,661 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:58:11,669 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:58:11,669 INFO  L82        PathProgramCache]: Analyzing trace with hash -1626360374, now seen corresponding path program 1 times
[2020-09-24 16:58:11,681 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:58:11,681 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1950578556]
[2020-09-24 16:58:11,682 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:58:11,980 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:12,158 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:12,403 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:13,938 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:14,166 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:17,379 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:25,027 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:25,027 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 197
[2020-09-24 16:58:25,028 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-24 16:58:25,028 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 13037
[2020-09-24 16:58:25,030 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:25,040 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 16:58:25,040 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 77
[2020-09-24 16:58:25,041 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 115
[2020-09-24 16:58:25,041 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 12
[2020-09-24 16:58:25,664 WARN  L193               SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 16:58:25,673 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:58:25,740 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:25,789 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:26,028 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:26,029 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-24 16:58:26,029 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:26,029 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 285
[2020-09-24 16:58:26,029 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:26,030 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:58:26,030 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:26,030 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 73
[2020-09-24 16:58:26,030 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:26,137 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-24 16:58:26,138 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:26,140 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:26,144 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:26,144 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:58:26,144 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:26,145 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 16:58:26,145 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:26,146 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:58:26,146 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:26,146 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:58:26,147 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:58:26,149 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-24 16:58:26,151 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:26,153 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:26,156 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:26,156 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:58:26,157 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:26,157 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:58:26,157 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:26,157 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:58:26,157 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:26,158 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:58:26,158 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:26,160 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-24 16:58:26,161 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:26,163 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:26,170 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:26,171 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:58:26,171 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:26,171 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 16:58:26,172 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:26,172 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:58:26,172 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:26,172 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:58:26,173 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:58:26,175 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-24 16:58:26,176 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:26,178 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:26,181 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:26,182 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:58:26,182 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:26,182 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:58:26,182 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:26,183 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:58:26,183 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:26,183 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:58:26,183 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:26,198 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-24 16:58:26,199 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:26,201 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:26,204 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:26,205 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 16:58:26,205 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:26,205 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:58:26,205 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:26,206 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:58:26,206 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:26,206 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-09-24 16:58:26,206 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:58:26,208 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2020-09-24 16:58:26,214 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:26,217 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:26,224 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:26,225 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 19
[2020-09-24 16:58:26,225 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:26,225 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 16:58:26,225 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:26,226 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:58:26,226 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:26,226 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 15
[2020-09-24 16:58:26,226 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:26,230 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:58:26,231 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:26,233 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:26,234 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:26,234 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:58:26,235 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:26,235 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:58:26,235 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:26,235 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:58:26,235 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:26,236 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:58:26,236 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:26,238 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137
[2020-09-24 16:58:26,242 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:26,244 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:26,247 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:26,248 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:58:26,248 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:26,248 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:58:26,248 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:26,249 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:58:26,249 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:26,249 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:58:26,249 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:26,251 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147
[2020-09-24 16:58:26,253 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:26,257 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:26,265 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:26,265 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:58:26,265 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:26,266 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 16:58:26,266 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:26,266 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 16:58:26,266 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:26,266 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:58:26,267 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:26,344 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-09-24 16:58:26,345 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1950578556]
[2020-09-24 16:58:26,348 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:58:26,351 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-09-24 16:58:26,353 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858382460]
[2020-09-24 16:58:26,364 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-24 16:58:26,364 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:58:26,383 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-24 16:58:26,384 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-09-24 16:58:26,387 INFO  L87              Difference]: Start difference. First operand 329 states. Second operand 9 states.
[2020-09-24 16:58:27,106 WARN  L193               SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 16:58:27,929 WARN  L193               SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-24 16:58:28,272 WARN  L193               SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-24 16:58:29,715 WARN  L193               SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 16:58:30,025 WARN  L193               SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-24 16:58:30,359 WARN  L193               SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:58:30,848 WARN  L193               SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-24 16:58:31,167 WARN  L193               SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-24 16:58:31,478 WARN  L193               SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-24 16:58:32,381 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:58:32,382 INFO  L93              Difference]: Finished difference Result 633 states and 770 transitions.
[2020-09-24 16:58:32,382 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2020-09-24 16:58:32,384 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 160
[2020-09-24 16:58:32,385 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:58:32,407 INFO  L225             Difference]: With dead ends: 633
[2020-09-24 16:58:32,407 INFO  L226             Difference]: Without dead ends: 428
[2020-09-24 16:58:32,414 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342
[2020-09-24 16:58:32,434 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 428 states.
[2020-09-24 16:58:32,545 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 377.
[2020-09-24 16:58:32,547 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 377 states.
[2020-09-24 16:58:32,551 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 423 transitions.
[2020-09-24 16:58:32,553 INFO  L78                 Accepts]: Start accepts. Automaton has 377 states and 423 transitions. Word has length 160
[2020-09-24 16:58:32,554 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:58:32,555 INFO  L479      AbstractCegarLoop]: Abstraction has 377 states and 423 transitions.
[2020-09-24 16:58:32,555 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-24 16:58:32,555 INFO  L276                IsEmpty]: Start isEmpty. Operand 377 states and 423 transitions.
[2020-09-24 16:58:32,562 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 236
[2020-09-24 16:58:32,562 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:58:32,563 INFO  L422         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 16:58:32,563 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 16:58:32,563 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:58:32,564 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:58:32,564 INFO  L82        PathProgramCache]: Analyzing trace with hash -1395814845, now seen corresponding path program 1 times
[2020-09-24 16:58:32,564 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:58:32,565 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [95398443]
[2020-09-24 16:58:32,565 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:58:32,625 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:32,689 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:32,788 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:32,932 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:33,161 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:35,609 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:44,316 FATAL L256   erpolLogProxyWrapper]: Now shrinking...