/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product18.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 16:50:26,836 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 16:50:26,840 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 16:50:26,868 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 16:50:26,869 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 16:50:26,870 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 16:50:26,871 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 16:50:26,873 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 16:50:26,875 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 16:50:26,876 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 16:50:26,877 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 16:50:26,878 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 16:50:26,878 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 16:50:26,879 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 16:50:26,880 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 16:50:26,881 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 16:50:26,882 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 16:50:26,883 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 16:50:26,885 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 16:50:26,887 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 16:50:26,888 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 16:50:26,889 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 16:50:26,891 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 16:50:26,892 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 16:50:26,894 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 16:50:26,895 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 16:50:26,895 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 16:50:26,896 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 16:50:26,896 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 16:50:26,897 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 16:50:26,898 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 16:50:26,898 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 16:50:26,899 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 16:50:26,900 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 16:50:26,901 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 16:50:26,901 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 16:50:26,902 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 16:50:26,902 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 16:50:26,902 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 16:50:26,903 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 16:50:26,904 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 16:50:26,905 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-24 16:50:26,929 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 16:50:26,930 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 16:50:26,931 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 16:50:26,931 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 16:50:26,931 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 16:50:26,931 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 16:50:26,932 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 16:50:26,932 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 16:50:26,932 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 16:50:26,932 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 16:50:26,932 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 16:50:26,933 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 16:50:26,933 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 16:50:26,933 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 16:50:26,933 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 16:50:26,933 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 16:50:26,934 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 16:50:26,934 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 16:50:26,934 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 16:50:26,934 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 16:50:26,934 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 16:50:26,935 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:50:26,935 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 16:50:26,935 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 16:50:26,935 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 16:50:26,935 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 16:50:26,936 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 16:50:26,936 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 16:50:26,936 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 16:50:26,936 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true;
[2020-09-24 16:50:27,404 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 16:50:27,420 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 16:50:27,424 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 16:50:27,425 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 16:50:27,427 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 16:50:27,429 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product18.cil.c
[2020-09-24 16:50:27,521 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9748d5000/4e13ef5725ea4f73873f9dd8ff4dc1c1/FLAG197b61f29
[2020-09-24 16:50:28,129 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 16:50:28,130 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product18.cil.c
[2020-09-24 16:50:28,142 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9748d5000/4e13ef5725ea4f73873f9dd8ff4dc1c1/FLAG197b61f29
[2020-09-24 16:50:28,414 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9748d5000/4e13ef5725ea4f73873f9dd8ff4dc1c1
[2020-09-24 16:50:28,426 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 16:50:28,432 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 16:50:28,433 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 16:50:28,433 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 16:50:28,437 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 16:50:28,438 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:50:28" (1/1) ...
[2020-09-24 16:50:28,443 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fa7080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:28, skipping insertion in model container
[2020-09-24 16:50:28,446 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:50:28" (1/1) ...
[2020-09-24 16:50:28,456 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 16:50:28,507 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 16:50:28,924 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:50:28,943 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 16:50:29,051 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:50:29,088 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 16:50:29,089 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:29 WrapperNode
[2020-09-24 16:50:29,089 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 16:50:29,090 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 16:50:29,090 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 16:50:29,090 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 16:50:29,104 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:29" (1/1) ...
[2020-09-24 16:50:29,104 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:29" (1/1) ...
[2020-09-24 16:50:29,125 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:29" (1/1) ...
[2020-09-24 16:50:29,125 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:29" (1/1) ...
[2020-09-24 16:50:29,158 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:29" (1/1) ...
[2020-09-24 16:50:29,169 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:29" (1/1) ...
[2020-09-24 16:50:29,174 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:29" (1/1) ...
[2020-09-24 16:50:29,181 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 16:50:29,182 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 16:50:29,182 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 16:50:29,182 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 16:50:29,183 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:29" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:50:29,277 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 16:50:29,277 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 16:50:29,278 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:50:29,278 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 16:50:29,279 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 16:50:29,280 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 16:50:29,280 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 16:50:29,280 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 16:50:29,280 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 16:50:29,281 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 16:50:29,282 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 16:50:29,282 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 16:50:29,282 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 16:50:29,282 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 16:50:29,283 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-24 16:50:29,284 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 16:50:29,284 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 16:50:29,284 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:50:29,284 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 16:50:29,284 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 16:50:29,285 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 16:50:29,285 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 16:50:29,285 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 16:50:29,285 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 16:50:29,286 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 16:50:29,286 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 16:50:29,287 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 16:50:29,287 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 16:50:29,287 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 16:50:29,287 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-24 16:50:29,287 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-24 16:50:29,288 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 16:50:29,288 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 16:50:29,288 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 16:50:29,288 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 16:50:29,288 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 16:50:29,289 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-24 16:50:29,289 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 16:50:29,289 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 16:50:29,289 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 16:50:29,289 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 16:50:29,289 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 16:50:29,290 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 16:50:29,290 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 16:50:29,290 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 16:50:29,291 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 16:50:29,291 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 16:50:29,291 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 16:50:29,292 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 16:50:29,292 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 16:50:29,292 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 16:50:29,292 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 16:50:29,292 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 16:50:29,293 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 16:50:29,293 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 16:50:29,293 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 16:50:29,293 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 16:50:29,294 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 16:50:29,294 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-24 16:50:29,294 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 16:50:29,294 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 16:50:29,294 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 16:50:29,295 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 16:50:29,295 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 16:50:29,295 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 16:50:29,295 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 16:50:29,295 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 16:50:29,295 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 16:50:29,296 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 16:50:29,296 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 16:50:29,296 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:50:29,297 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:50:29,298 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 16:50:29,298 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 16:50:29,299 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 16:50:29,299 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 16:50:29,299 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 16:50:29,299 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 16:50:29,299 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 16:50:29,300 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-24 16:50:29,300 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-24 16:50:29,300 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 16:50:29,301 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 16:50:29,301 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-24 16:50:29,301 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 16:50:29,301 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 16:50:29,302 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 16:50:29,302 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 16:50:29,302 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 16:50:29,302 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 16:50:30,426 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 16:50:30,427 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 16:50:30,434 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:50:30 BoogieIcfgContainer
[2020-09-24 16:50:30,434 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 16:50:30,436 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 16:50:30,436 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 16:50:30,440 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 16:50:30,440 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:50:28" (1/3) ...
[2020-09-24 16:50:30,441 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fda0106 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:50:30, skipping insertion in model container
[2020-09-24 16:50:30,441 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:50:29" (2/3) ...
[2020-09-24 16:50:30,441 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fda0106 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:50:30, skipping insertion in model container
[2020-09-24 16:50:30,442 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:50:30" (3/3) ...
[2020-09-24 16:50:30,444 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product18.cil.c
[2020-09-24 16:50:30,456 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 16:50:30,468 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 16:50:30,492 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 16:50:30,526 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 16:50:30,527 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 16:50:30,527 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 16:50:30,527 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 16:50:30,527 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 16:50:30,527 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 16:50:30,528 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 16:50:30,528 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 16:50:30,558 INFO  L276                IsEmpty]: Start isEmpty. Operand 296 states.
[2020-09-24 16:50:30,578 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-24 16:50:30,578 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:50:30,580 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 16:50:30,580 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:50:30,588 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:50:30,588 INFO  L82        PathProgramCache]: Analyzing trace with hash -255597227, now seen corresponding path program 1 times
[2020-09-24 16:50:30,601 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:50:30,602 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [951117820]
[2020-09-24 16:50:30,603 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:50:31,001 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:31,160 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:31,359 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:32,906 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:36,820 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:36,821 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-24 16:50:36,825 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 16:50:36,825 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5808
[2020-09-24 16:50:36,826 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:36,827 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:50:36,827 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 129
[2020-09-24 16:50:36,827 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:50:36,828 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 16:50:37,232 WARN  L193               SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:50:37,238 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:50:37,266 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:37,277 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:37,383 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:37,383 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:50:37,383 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:37,384 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 115
[2020-09-24 16:50:37,384 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:37,384 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:50:37,384 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:37,385 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:50:37,385 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:50:37,452 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:50:37,453 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:37,455 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:37,457 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:37,458 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:50:37,458 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:37,458 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:50:37,459 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:37,459 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:50:37,460 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:37,460 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:50:37,460 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:50:37,462 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:50:37,463 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:37,464 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:37,466 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:37,467 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:50:37,467 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:37,468 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:50:37,468 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:37,468 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:50:37,469 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:37,469 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:50:37,469 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:50:37,471 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:50:37,472 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:37,473 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:37,478 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:37,479 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:50:37,479 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:37,479 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 16:50:37,479 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:37,480 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:50:37,480 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:37,481 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:50:37,481 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:50:37,483 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:50:37,484 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:37,485 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:37,488 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:37,488 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:50:37,488 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:37,489 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:50:37,489 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:37,489 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:50:37,490 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:37,490 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:50:37,491 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:50:37,492 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 16:50:37,493 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:37,495 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:37,498 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:37,498 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:50:37,499 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:37,499 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:50:37,499 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:37,500 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:50:37,500 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:50:37,500 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:50:37,501 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:50:37,502 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 16:50:37,503 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:37,508 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:37,510 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:37,511 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:50:37,511 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:37,512 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:50:37,512 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:37,512 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:50:37,513 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:50:37,513 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:50:37,514 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:50:37,516 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-24 16:50:37,517 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:37,518 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:37,521 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:37,521 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:50:37,521 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:37,522 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:50:37,522 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:37,522 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:50:37,523 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:50:37,523 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:50:37,524 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:50:37,621 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 16:50:37,622 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [951117820]
[2020-09-24 16:50:37,625 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:50:37,625 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 16:50:37,627 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522294787]
[2020-09-24 16:50:37,635 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 16:50:37,635 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:50:37,658 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 16:50:37,659 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 16:50:37,663 INFO  L87              Difference]: Start difference. First operand 296 states. Second operand 3 states.
[2020-09-24 16:50:38,988 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:50:38,988 INFO  L93              Difference]: Finished difference Result 444 states and 527 transitions.
[2020-09-24 16:50:38,989 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-09-24 16:50:38,991 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 153
[2020-09-24 16:50:38,992 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:50:39,010 INFO  L225             Difference]: With dead ends: 444
[2020-09-24 16:50:39,010 INFO  L226             Difference]: Without dead ends: 279
[2020-09-24 16:50:39,016 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 16:50:39,037 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 279 states.
[2020-09-24 16:50:39,112 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 239.
[2020-09-24 16:50:39,115 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 239 states.
[2020-09-24 16:50:39,119 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 257 transitions.
[2020-09-24 16:50:39,122 INFO  L78                 Accepts]: Start accepts. Automaton has 239 states and 257 transitions. Word has length 153
[2020-09-24 16:50:39,126 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:50:39,126 INFO  L479      AbstractCegarLoop]: Abstraction has 239 states and 257 transitions.
[2020-09-24 16:50:39,126 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 16:50:39,126 INFO  L276                IsEmpty]: Start isEmpty. Operand 239 states and 257 transitions.
[2020-09-24 16:50:39,135 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 155
[2020-09-24 16:50:39,135 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:50:39,135 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 16:50:39,138 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 16:50:39,139 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:50:39,139 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:50:39,139 INFO  L82        PathProgramCache]: Analyzing trace with hash 73238065, now seen corresponding path program 1 times
[2020-09-24 16:50:39,139 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:50:39,140 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1839225084]
[2020-09-24 16:50:39,140 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:50:39,208 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:39,286 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:39,385 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:40,994 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:46,462 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:46,462 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 187
[2020-09-24 16:50:46,463 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 16:50:46,463 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7250
[2020-09-24 16:50:46,463 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:46,463 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 16:50:46,463 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-24 16:50:46,464 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 93
[2020-09-24 16:50:46,464 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:46,781 WARN  L193               SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:50:46,782 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:50:46,813 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:46,849 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:47,070 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:47,070 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:50:47,070 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:47,071 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 254
[2020-09-24 16:50:47,071 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:47,071 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:47,071 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:47,072 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-24 16:50:47,072 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:47,117 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:50:47,118 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:47,121 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:47,123 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:47,123 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:50:47,124 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:47,124 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:50:47,124 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:47,124 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:47,124 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:47,125 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:50:47,125 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:47,126 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:50:47,127 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:47,128 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:47,130 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:47,131 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:50:47,131 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:47,131 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:50:47,131 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:47,132 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:47,132 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:47,132 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:50:47,132 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:47,134 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:50:47,135 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:47,136 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:47,143 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:47,143 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:50:47,143 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:47,144 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 16:50:47,144 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:47,144 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:47,144 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:47,144 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:50:47,145 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:47,147 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:50:47,147 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:47,149 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:47,151 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:47,151 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:50:47,151 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:47,151 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:50:47,152 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:47,152 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:47,152 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:47,152 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:50:47,152 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:47,153 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122
[2020-09-24 16:50:47,154 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:47,156 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:47,158 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:47,159 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:50:47,159 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:47,159 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:50:47,159 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:47,159 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:47,160 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:47,160 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:50:47,160 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:47,162 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132
[2020-09-24 16:50:47,164 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:47,165 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:47,172 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:47,173 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:50:47,173 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:47,173 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 16:50:47,173 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:47,173 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 16:50:47,174 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:47,174 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:50:47,174 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:47,219 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142
[2020-09-24 16:50:47,220 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:47,222 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:47,223 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:47,223 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:50:47,223 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:47,224 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:50:47,224 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:47,224 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:50:47,224 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:50:47,224 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:50:47,225 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:47,261 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 16:50:47,263 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1839225084]
[2020-09-24 16:50:47,263 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:50:47,263 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-24 16:50:47,263 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378629133]
[2020-09-24 16:50:47,269 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-24 16:50:47,269 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:50:47,270 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-24 16:50:47,270 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-24 16:50:47,270 INFO  L87              Difference]: Start difference. First operand 239 states and 257 transitions. Second operand 8 states.
[2020-09-24 16:50:47,778 WARN  L193               SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:50:49,162 WARN  L193               SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 16:50:49,561 WARN  L193               SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 192
[2020-09-24 16:50:49,911 WARN  L193               SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:50:50,278 WARN  L193               SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 16:50:50,600 WARN  L193               SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:50:50,940 WARN  L193               SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:50:51,231 WARN  L193               SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:50:52,074 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:50:52,074 INFO  L93              Difference]: Finished difference Result 533 states and 628 transitions.
[2020-09-24 16:50:52,075 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-24 16:50:52,075 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 154
[2020-09-24 16:50:52,076 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:50:52,080 INFO  L225             Difference]: With dead ends: 533
[2020-09-24 16:50:52,080 INFO  L226             Difference]: Without dead ends: 404
[2020-09-24 16:50:52,083 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-24 16:50:52,084 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 404 states.
[2020-09-24 16:50:52,171 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 360.
[2020-09-24 16:50:52,171 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 360 states.
[2020-09-24 16:50:52,174 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 404 transitions.
[2020-09-24 16:50:52,174 INFO  L78                 Accepts]: Start accepts. Automaton has 360 states and 404 transitions. Word has length 154
[2020-09-24 16:50:52,175 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:50:52,175 INFO  L479      AbstractCegarLoop]: Abstraction has 360 states and 404 transitions.
[2020-09-24 16:50:52,176 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-24 16:50:52,176 INFO  L276                IsEmpty]: Start isEmpty. Operand 360 states and 404 transitions.
[2020-09-24 16:50:52,181 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 160
[2020-09-24 16:50:52,182 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:50:52,182 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 16:50:52,182 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 16:50:52,183 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:50:52,183 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:50:52,183 INFO  L82        PathProgramCache]: Analyzing trace with hash 1933032044, now seen corresponding path program 1 times
[2020-09-24 16:50:52,183 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:50:52,185 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [181909979]
[2020-09-24 16:50:52,185 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:50:52,238 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:52,292 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:52,381 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:52,501 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:57,630 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:58,492 FATAL L256   erpolLogProxyWrapper]: Now shrinking...