/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_product33.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 16:57:45,760 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 16:57:45,765 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 16:57:45,806 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 16:57:45,808 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 16:57:45,816 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 16:57:45,819 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 16:57:45,822 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 16:57:45,826 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 16:57:45,830 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 16:57:45,831 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 16:57:45,832 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 16:57:45,832 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 16:57:45,835 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 16:57:45,838 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 16:57:45,839 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 16:57:45,841 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 16:57:45,842 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 16:57:45,844 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 16:57:45,852 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 16:57:45,855 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 16:57:45,856 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 16:57:45,857 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 16:57:45,858 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 16:57:45,870 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 16:57:45,870 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 16:57:45,870 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 16:57:45,876 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 16:57:45,877 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 16:57:45,878 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 16:57:45,878 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 16:57:45,884 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 16:57:45,885 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 16:57:45,886 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 16:57:45,887 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 16:57:45,887 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 16:57:45,889 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 16:57:45,889 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 16:57:45,889 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 16:57:45,890 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 16:57:45,891 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 16:57:45,892 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 16:57:45,930 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 16:57:45,930 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 16:57:45,933 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 16:57:45,933 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 16:57:45,933 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 16:57:45,934 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 16:57:45,934 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 16:57:45,934 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 16:57:45,934 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 16:57:45,935 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 16:57:45,936 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 16:57:45,936 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 16:57:45,936 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 16:57:45,937 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 16:57:45,937 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 16:57:45,937 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 16:57:45,937 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 16:57:45,937 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 16:57:45,938 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 16:57:45,938 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 16:57:45,938 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 16:57:45,938 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:57:45,938 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 16:57:45,939 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 16:57:45,939 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 16:57:45,939 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 16:57:45,939 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 16:57:45,939 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 16:57:45,939 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 16:57:45,940 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 16:57:46,389 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 16:57:46,418 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 16:57:46,423 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 16:57:46,425 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 16:57:46,426 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 16:57:46,427 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product33.cil.c
[2020-09-24 16:57:46,519 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a7560c65b/e62eb274eda247e4af5a490fb223c25e/FLAG542c5d2ca
[2020-09-24 16:57:47,129 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 16:57:47,130 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product33.cil.c
[2020-09-24 16:57:47,156 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a7560c65b/e62eb274eda247e4af5a490fb223c25e/FLAG542c5d2ca
[2020-09-24 16:57:47,394 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a7560c65b/e62eb274eda247e4af5a490fb223c25e
[2020-09-24 16:57:47,408 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 16:57:47,414 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 16:57:47,415 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 16:57:47,415 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 16:57:47,419 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 16:57:47,420 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:57:47" (1/1) ...
[2020-09-24 16:57:47,424 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@742dacf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:57:47, skipping insertion in model container
[2020-09-24 16:57:47,425 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:57:47" (1/1) ...
[2020-09-24 16:57:47,434 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 16:57:47,510 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 16:57:47,863 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:57:47,880 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 16:57:48,077 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:57:48,121 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 16:57:48,121 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:57:48 WrapperNode
[2020-09-24 16:57:48,121 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 16:57:48,122 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 16:57:48,123 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 16:57:48,123 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 16:57:48,142 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:57:48" (1/1) ...
[2020-09-24 16:57:48,142 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:57:48" (1/1) ...
[2020-09-24 16:57:48,165 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:57:48" (1/1) ...
[2020-09-24 16:57:48,165 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:57:48" (1/1) ...
[2020-09-24 16:57:48,214 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:57:48" (1/1) ...
[2020-09-24 16:57:48,230 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:57:48" (1/1) ...
[2020-09-24 16:57:48,244 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:57:48" (1/1) ...
[2020-09-24 16:57:48,263 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 16:57:48,264 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 16:57:48,264 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 16:57:48,264 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 16:57:48,266 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:57:48" (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 16:57:48,376 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 16:57:48,377 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 16:57:48,378 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:57:48,378 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 16:57:48,378 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 16:57:48,378 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:57:48,379 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 16:57:48,379 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 16:57:48,379 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 16:57:48,380 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 16:57:48,380 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 16:57:48,380 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 16:57:48,381 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 16:57:48,381 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 16:57:48,381 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 16:57:48,382 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 16:57:48,382 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 16:57:48,382 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 16:57:48,382 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-24 16:57:48,383 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 16:57:48,383 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 16:57:48,383 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 16:57:48,383 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 16:57:48,383 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 16:57:48,384 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 16:57:48,385 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 16:57:48,385 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 16:57:48,385 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 16:57:48,385 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 16:57:48,385 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 16:57:48,386 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 16:57:48,386 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 16:57:48,386 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 16:57:48,386 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 16:57:48,386 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 16:57:48,386 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-24 16:57:48,386 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1
[2020-09-24 16:57:48,387 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2
[2020-09-24 16:57:48,387 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3
[2020-09-24 16:57:48,387 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 16:57:48,387 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 16:57:48,387 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 16:57:48,387 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 16:57:48,388 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 16:57:48,388 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 16:57:48,388 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 16:57:48,388 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 16:57:48,388 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 16:57:48,388 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 16:57:48,388 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 16:57:48,389 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 16:57:48,389 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 16:57:48,389 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:57:48,389 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:57:48,390 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 16:57:48,390 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 16:57:48,390 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 16:57:48,390 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 16:57:48,391 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 16:57:48,391 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 16:57:48,391 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 16:57:48,391 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 16:57:48,391 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 16:57:48,391 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 16:57:48,391 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 16:57:48,392 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 16:57:48,392 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 16:57:48,392 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-24 16:57:48,392 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 16:57:48,392 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 16:57:48,392 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 16:57:48,393 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 16:57:48,394 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2
[2020-09-24 16:57:48,394 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3
[2020-09-24 16:57:48,395 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 16:57:48,395 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 16:57:48,396 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-24 16:57:48,396 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 16:57:48,396 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 16:57:48,396 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 16:57:48,396 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 16:57:48,396 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 16:57:48,398 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 16:57:48,398 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 16:57:48,398 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1
[2020-09-24 16:57:48,398 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 16:57:48,398 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 16:57:48,398 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 16:57:48,399 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 16:57:48,399 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 16:57:48,399 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 16:57:48,399 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 16:57:49,653 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 16:57:49,654 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 16:57:49,665 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:57:49 BoogieIcfgContainer
[2020-09-24 16:57:49,666 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 16:57:49,668 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 16:57:49,669 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 16:57:49,673 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 16:57:49,673 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:57:47" (1/3) ...
[2020-09-24 16:57:49,674 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e329993 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:57:49, skipping insertion in model container
[2020-09-24 16:57:49,674 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:57:48" (2/3) ...
[2020-09-24 16:57:49,675 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e329993 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:57:49, skipping insertion in model container
[2020-09-24 16:57:49,675 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:57:49" (3/3) ...
[2020-09-24 16:57:49,677 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec5_product33.cil.c
[2020-09-24 16:57:49,689 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 16:57:49,701 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 16:57:49,723 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 16:57:49,752 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 16:57:49,753 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 16:57:49,753 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 16:57:49,753 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 16:57:49,753 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 16:57:49,753 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 16:57:49,753 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 16:57:49,753 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 16:57:49,779 INFO  L276                IsEmpty]: Start isEmpty. Operand 291 states.
[2020-09-24 16:57:49,797 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 161
[2020-09-24 16:57:49,797 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:57:49,798 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 16:57:49,799 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:57:49,805 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:57:49,805 INFO  L82        PathProgramCache]: Analyzing trace with hash -1855283270, now seen corresponding path program 1 times
[2020-09-24 16:57:49,816 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:57:49,816 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1113534168]
[2020-09-24 16:57:49,817 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:57:50,147 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:57:50,328 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:57:50,528 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:57:51,055 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:57:51,314 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:57:53,123 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:03,134 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:03,135 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 197
[2020-09-24 16:58:03,136 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-24 16:58:03,136 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 12975
[2020-09-24 16:58:03,139 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:03,139 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:58:03,139 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 79
[2020-09-24 16:58:03,139 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 84
[2020-09-24 16:58:03,140 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 16:58:03,679 WARN  L193               SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 16:58:03,683 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:58:03,757 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:03,800 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:04,021 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:04,021 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-24 16:58:04,022 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:04,022 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 263
[2020-09-24 16:58:04,022 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:04,023 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:58:04,023 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:04,024 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-24 16:58:04,024 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:58:04,156 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-24 16:58:04,157 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:04,159 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:04,164 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:04,165 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:58:04,165 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:04,166 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 16:58:04,166 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:04,166 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:58:04,167 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:04,167 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:58:04,167 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:58:04,171 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-24 16:58:04,172 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:04,174 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:04,183 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:04,184 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:58:04,184 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:04,184 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-24 16:58:04,184 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:04,184 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:58:04,185 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:04,185 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:58:04,185 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:04,189 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-24 16:58:04,190 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:04,193 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:04,212 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:04,212 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:58:04,212 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:04,213 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 20
[2020-09-24 16:58:04,213 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:04,214 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:58:04,214 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:04,214 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:58:04,215 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:58:04,218 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-24 16:58:04,219 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:04,221 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:04,225 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:04,225 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:58:04,226 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:04,226 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:58:04,226 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:04,227 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:58:04,227 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:04,227 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:58:04,228 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:58:04,247 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-24 16:58:04,249 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:04,251 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:04,255 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:04,256 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 16:58:04,256 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:04,257 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 16:58:04,257 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:04,257 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:58:04,258 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:04,258 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-09-24 16:58:04,259 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:58:04,264 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2020-09-24 16:58:04,270 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:04,273 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:04,278 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:04,279 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 19
[2020-09-24 16:58:04,279 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:04,279 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 16:58:04,280 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:04,280 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:58:04,281 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:04,281 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 15
[2020-09-24 16:58:04,281 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:58:04,288 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:58:04,288 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:04,290 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:04,291 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:04,292 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:58:04,292 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:04,293 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:58:04,293 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:04,293 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:58:04,293 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:04,294 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:58:04,294 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:58:04,296 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137
[2020-09-24 16:58:04,298 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:04,300 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:04,301 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:04,302 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:58:04,302 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:04,302 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:58:04,302 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:04,304 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:58:04,304 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:58:04,304 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:58:04,304 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:58:04,306 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147
[2020-09-24 16:58:04,307 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:04,309 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:04,311 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:04,311 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:58:04,312 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:04,314 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:58:04,320 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:04,320 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:58:04,321 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:58:04,321 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:58:04,321 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:58:04,391 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2020-09-24 16:58:04,393 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1113534168]
[2020-09-24 16:58:04,396 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:58:04,397 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-24 16:58:04,398 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644025814]
[2020-09-24 16:58:04,414 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-24 16:58:04,414 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:58:04,437 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-24 16:58:04,438 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-24 16:58:04,453 INFO  L87              Difference]: Start difference. First operand 291 states. Second operand 5 states.
[2020-09-24 16:58:05,259 WARN  L193               SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 16:58:06,199 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:58:06,199 INFO  L93              Difference]: Finished difference Result 437 states and 514 transitions.
[2020-09-24 16:58:06,200 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-24 16:58:06,201 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 160
[2020-09-24 16:58:06,202 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:58:06,225 INFO  L225             Difference]: With dead ends: 437
[2020-09-24 16:58:06,225 INFO  L226             Difference]: Without dead ends: 282
[2020-09-24 16:58:06,231 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-09-24 16:58:06,253 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 282 states.
[2020-09-24 16:58:06,342 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 240.
[2020-09-24 16:58:06,344 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 240 states.
[2020-09-24 16:58:06,346 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 259 transitions.
[2020-09-24 16:58:06,349 INFO  L78                 Accepts]: Start accepts. Automaton has 240 states and 259 transitions. Word has length 160
[2020-09-24 16:58:06,349 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:58:06,350 INFO  L479      AbstractCegarLoop]: Abstraction has 240 states and 259 transitions.
[2020-09-24 16:58:06,350 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-24 16:58:06,350 INFO  L276                IsEmpty]: Start isEmpty. Operand 240 states and 259 transitions.
[2020-09-24 16:58:06,355 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 170
[2020-09-24 16:58:06,355 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:58:06,356 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, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 16:58:06,356 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 16:58:06,356 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:58:06,357 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:58:06,357 INFO  L82        PathProgramCache]: Analyzing trace with hash -229787215, now seen corresponding path program 1 times
[2020-09-24 16:58:06,357 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:58:06,357 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1779139405]
[2020-09-24 16:58:06,358 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:58:06,415 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:06,468 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:06,560 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:06,702 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:09,517 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:09,681 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:11,899 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:12,242 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:23,013 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:23,014 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 210
[2020-09-24 16:58:23,014 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 7
[2020-09-24 16:58:23,014 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 16594
[2020-09-24 16:58:23,014 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:23,015 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 14
[2020-09-24 16:58:23,015 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-24 16:58:23,015 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 91
[2020-09-24 16:58:23,015 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:23,318 WARN  L193               SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 16:58:23,319 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:58:23,352 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:23,387 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:23,599 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:23,599 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-24 16:58:23,600 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:23,600 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 246
[2020-09-24 16:58:23,600 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:23,601 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:58:23,601 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:23,601 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-24 16:58:23,602 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:58:23,645 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-24 16:58:23,646 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:23,647 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:23,650 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:23,650 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:58:23,650 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:23,650 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:58:23,650 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:23,651 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:58:23,651 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:23,651 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:58:23,652 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:58:23,653 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-24 16:58:23,654 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:23,655 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:23,659 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:23,659 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:58:23,659 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:23,660 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:58:23,660 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:23,660 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:58:23,661 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:23,661 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:58:23,661 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:58:23,662 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-24 16:58:23,664 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:23,665 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:23,671 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:23,672 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:58:23,672 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:23,672 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 16:58:23,672 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:23,673 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:58:23,673 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:23,673 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:58:23,673 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:23,675 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-24 16:58:23,676 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:23,678 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:23,681 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:23,681 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:58:23,681 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:23,682 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:58:23,682 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:23,682 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:58:23,683 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:23,683 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:58:23,683 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:58:23,692 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-24 16:58:23,694 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:23,695 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:23,697 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:23,698 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 16:58:23,698 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:23,699 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:58:23,699 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:23,699 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:58:23,700 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:23,700 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-09-24 16:58:23,700 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:58:23,702 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 16:58:23,704 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:23,707 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:23,714 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:23,714 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 19
[2020-09-24 16:58:23,714 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:23,715 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 16:58:23,715 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:23,715 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:58:23,715 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:23,716 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 15
[2020-09-24 16:58:23,716 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:23,718 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:58:23,719 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:23,720 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:23,721 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:23,721 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:58:23,721 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:23,722 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:58:23,722 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:23,723 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:58:23,723 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:23,723 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:58:23,724 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:58:23,736 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135
[2020-09-24 16:58:23,737 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:23,739 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:23,744 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:23,744 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-24 16:58:23,745 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:23,745 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 16:58:23,745 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:23,745 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-24 16:58:23,746 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-09-24 16:58:23,746 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 14
[2020-09-24 16:58:23,746 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:58:23,759 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 16:58:23,760 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:23,761 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:23,764 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:23,764 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:58:23,765 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:23,765 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:58:23,765 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:23,766 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:58:23,766 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:58:23,766 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:58:23,767 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:58:23,768 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146
[2020-09-24 16:58:23,769 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:23,771 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:23,772 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:23,773 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:58:23,773 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:23,773 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:58:23,774 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:23,774 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:58:23,774 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:58:23,775 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:58:23,775 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:58:23,776 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156
[2020-09-24 16:58:23,777 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:23,778 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:23,780 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:58:23,780 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:58:23,780 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:58:23,781 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:58:23,781 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:58:23,781 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:58:23,781 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:58:23,781 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:58:23,782 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:58:23,828 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2020-09-24 16:58:23,829 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1779139405]
[2020-09-24 16:58:23,829 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:58:23,830 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-09-24 16:58:23,830 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511566826]
[2020-09-24 16:58:23,833 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-09-24 16:58:23,833 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:58:23,833 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-09-24 16:58:23,834 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2020-09-24 16:58:23,834 INFO  L87              Difference]: Start difference. First operand 240 states and 259 transitions. Second operand 7 states.
[2020-09-24 16:58:24,302 WARN  L193               SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 16:58:26,067 WARN  L193               SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:58:26,621 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:58:26,622 INFO  L93              Difference]: Finished difference Result 568 states and 673 transitions.
[2020-09-24 16:58:26,623 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2020-09-24 16:58:26,623 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 169
[2020-09-24 16:58:26,627 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:58:26,638 INFO  L225             Difference]: With dead ends: 568
[2020-09-24 16:58:26,638 INFO  L226             Difference]: Without dead ends: 443
[2020-09-24 16:58:26,641 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210
[2020-09-24 16:58:26,645 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 443 states.
[2020-09-24 16:58:26,726 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 368.
[2020-09-24 16:58:26,727 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 368 states.
[2020-09-24 16:58:26,729 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 411 transitions.
[2020-09-24 16:58:26,729 INFO  L78                 Accepts]: Start accepts. Automaton has 368 states and 411 transitions. Word has length 169
[2020-09-24 16:58:26,730 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:58:26,730 INFO  L479      AbstractCegarLoop]: Abstraction has 368 states and 411 transitions.
[2020-09-24 16:58:26,730 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-09-24 16:58:26,731 INFO  L276                IsEmpty]: Start isEmpty. Operand 368 states and 411 transitions.
[2020-09-24 16:58:26,734 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 194
[2020-09-24 16:58:26,734 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:58:26,734 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:26,735 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 16:58:26,735 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:58:26,735 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:58:26,735 INFO  L82        PathProgramCache]: Analyzing trace with hash 1468379311, now seen corresponding path program 1 times
[2020-09-24 16:58:26,735 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:58:26,736 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [274727887]
[2020-09-24 16:58:26,736 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:58:26,778 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:58:26,827 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:26,914 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:27,267 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:30,314 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:30,453 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:30,537 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:58:34,385 FATAL L256   erpolLogProxyWrapper]: Now shrinking...