/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 enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --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_spec1_product44.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 14:13:29,875 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 14:13:29,879 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 14:13:29,917 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 14:13:29,918 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 14:13:29,926 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 14:13:29,929 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 14:13:29,933 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 14:13:29,937 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 14:13:29,941 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 14:13:29,942 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 14:13:29,944 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 14:13:29,944 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 14:13:29,947 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 14:13:29,950 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 14:13:29,952 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 14:13:29,953 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 14:13:29,955 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 14:13:29,956 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 14:13:29,967 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 14:13:29,969 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 14:13:29,970 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 14:13:29,971 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 14:13:29,972 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 14:13:29,984 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 14:13:29,988 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 14:13:29,988 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 14:13:29,989 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 14:13:29,990 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 14:13:29,993 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 14:13:29,993 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
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[2020-09-25 14:13:29,995 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 14:13:29,996 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 14:13:30,002 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 14:13:30,002 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
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[2020-09-25 14:13:30,004 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 14:13:30,004 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 14:13:30,005 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 14:13:30,007 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
[2020-09-25 14:13:30,058 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 14:13:30,058 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 14:13:30,060 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 14:13:30,060 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 14:13:30,060 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 14:13:30,060 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 14:13:30,061 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 14:13:30,062 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 14:13:30,062 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 14:13:30,062 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 14:13:30,063 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 14:13:30,064 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 14:13:30,064 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 14:13:30,064 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 14:13:30,065 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 14:13:30,065 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 14:13:30,065 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 14:13:30,065 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 14:13:30,065 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 14:13:30,067 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 14:13:30,067 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 14:13:30,069 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 14:13:30,069 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 14:13:30,072 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 14:13:30,072 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 14:13:30,072 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 14:13:30,072 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 14:13:30,072 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 14:13:30,073 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 14:13:30,073 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;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;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;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;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;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;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;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;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;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;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;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true;
[2020-09-25 14:13:30,519 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 14:13:30,543 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 14:13:30,547 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 14:13:30,548 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 14:13:30,549 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 14:13:30,550 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product44.cil.c
[2020-09-25 14:13:30,643 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/66b468033/ce56f0b3b6014c0fad8fe8766dc7b574/FLAG676fe84a3
[2020-09-25 14:13:31,245 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 14:13:31,247 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product44.cil.c
[2020-09-25 14:13:31,261 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/66b468033/ce56f0b3b6014c0fad8fe8766dc7b574/FLAG676fe84a3
[2020-09-25 14:13:31,515 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/66b468033/ce56f0b3b6014c0fad8fe8766dc7b574
[2020-09-25 14:13:31,528 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 14:13:31,534 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 14:13:31,535 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 14:13:31,536 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 14:13:31,540 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 14:13:31,541 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:13:31" (1/1) ...
[2020-09-25 14:13:31,545 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5341aa08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:31, skipping insertion in model container
[2020-09-25 14:13:31,545 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:13:31" (1/1) ...
[2020-09-25 14:13:31,553 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 14:13:31,600 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 14:13:32,111 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 14:13:32,138 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 14:13:32,243 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 14:13:32,288 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 14:13:32,289 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:32 WrapperNode
[2020-09-25 14:13:32,289 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 14:13:32,290 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 14:13:32,290 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 14:13:32,291 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 14:13:32,305 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:32" (1/1) ...
[2020-09-25 14:13:32,306 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:32" (1/1) ...
[2020-09-25 14:13:32,328 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:32" (1/1) ...
[2020-09-25 14:13:32,329 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:32" (1/1) ...
[2020-09-25 14:13:32,361 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:32" (1/1) ...
[2020-09-25 14:13:32,373 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:32" (1/1) ...
[2020-09-25 14:13:32,379 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:32" (1/1) ...
[2020-09-25 14:13:32,387 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 14:13:32,387 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 14:13:32,388 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 14:13:32,388 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 14:13:32,391 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:32" (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
[2020-09-25 14:13:32,485 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 14:13:32,486 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 14:13:32,486 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 14:13:32,486 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 14:13:32,486 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 14:13:32,487 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 14:13:32,487 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 14:13:32,487 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 14:13:32,487 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 14:13:32,487 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 14:13:32,488 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 14:13:32,488 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 14:13:32,488 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 14:13:32,488 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 14:13:32,488 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor
[2020-09-25 14:13:32,488 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 14:13:32,489 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 14:13:32,489 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 14:13:32,489 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 14:13:32,489 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 14:13:32,490 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-25 14:13:32,490 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-25 14:13:32,490 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-25 14:13:32,490 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 14:13:32,490 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 14:13:32,491 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 14:13:32,491 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 14:13:32,491 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 14:13:32,491 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 14:13:32,491 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-25 14:13:32,491 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1
[2020-09-25 14:13:32,492 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 14:13:32,492 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 14:13:32,492 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 14:13:32,492 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 14:13:32,492 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 14:13:32,492 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 14:13:32,493 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 14:13:32,493 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 14:13:32,493 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 14:13:32,493 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 14:13:32,493 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 14:13:32,493 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 14:13:32,493 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 14:13:32,494 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 14:13:32,494 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 14:13:32,494 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 14:13:32,494 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 14:13:32,494 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 14:13:32,494 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 14:13:32,495 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 14:13:32,495 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 14:13:32,495 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 14:13:32,495 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 14:13:32,495 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 14:13:32,496 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 14:13:32,496 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 14:13:32,496 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 14:13:32,496 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 14:13:32,496 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 14:13:32,496 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 14:13:32,496 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 14:13:32,497 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 14:13:32,497 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-25 14:13:32,497 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-25 14:13:32,497 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 14:13:32,497 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 14:13:32,497 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 14:13:32,498 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 14:13:32,498 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 14:13:32,498 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 14:13:32,498 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-25 14:13:32,498 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 14:13:32,498 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 14:13:32,499 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 14:13:32,499 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 14:13:32,499 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1
[2020-09-25 14:13:32,499 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 14:13:32,499 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 14:13:32,499 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-25 14:13:32,500 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor
[2020-09-25 14:13:32,500 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 14:13:32,500 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 14:13:32,500 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 14:13:32,500 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 14:13:32,500 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 14:13:32,501 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 14:13:32,501 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 14:13:32,501 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 14:13:32,501 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 14:13:32,501 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 14:13:32,501 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 14:13:32,502 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 14:13:32,502 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 14:13:33,765 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 14:13:33,765 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 14:13:33,773 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:13:33 BoogieIcfgContainer
[2020-09-25 14:13:33,773 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 14:13:33,774 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 14:13:33,774 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 14:13:33,778 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 14:13:33,778 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:13:31" (1/3) ...
[2020-09-25 14:13:33,779 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bc2d81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:13:33, skipping insertion in model container
[2020-09-25 14:13:33,780 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:32" (2/3) ...
[2020-09-25 14:13:33,780 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bc2d81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:13:33, skipping insertion in model container
[2020-09-25 14:13:33,780 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:13:33" (3/3) ...
[2020-09-25 14:13:33,783 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec1_product44.cil.c
[2020-09-25 14:13:33,794 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 14:13:33,806 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 14:13:33,831 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 14:13:33,867 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 14:13:33,867 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 14:13:33,868 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 14:13:33,868 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 14:13:33,868 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 14:13:33,868 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 14:13:33,868 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 14:13:33,869 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 14:13:33,901 INFO  L276                IsEmpty]: Start isEmpty. Operand 308 states.
[2020-09-25 14:13:33,919 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 143
[2020-09-25 14:13:33,919 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 14:13:33,921 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 14:13:33,921 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 14:13:33,930 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 14:13:33,930 INFO  L82        PathProgramCache]: Analyzing trace with hash -382402386, now seen corresponding path program 1 times
[2020-09-25 14:13:33,942 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 14:13:33,943 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2053293932]
[2020-09-25 14:13:33,943 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 14:13:34,296 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:13:34,445 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:13:34,736 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:13:36,475 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:13:37,569 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:13:38,895 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:13:39,328 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:13:39,328 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 173
[2020-09-25 14:13:39,330 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-25 14:13:39,330 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5017
[2020-09-25 14:13:39,335 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:13:39,336 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:13:39,336 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 14:13:39,337 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 79
[2020-09-25 14:13:39,337 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 61
[2020-09-25 14:13:39,346 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 15
[2020-09-25 14:13:39,933 WARN  L193               SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 14:13:39,942 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 14:13:40,015 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:13:40,092 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:13:40,388 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:13:40,388 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 14:13:40,389 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:13:40,389 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 370
[2020-09-25 14:13:40,389 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:13:40,390 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:13:40,390 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:13:40,391 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:13:40,391 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-25 14:13:40,391 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 14:13:40,486 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 14:13:40,488 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:13:40,490 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:13:40,495 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:13:40,495 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:13:40,495 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:13:40,495 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 14:13:40,496 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:13:40,496 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:13:40,497 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:13:40,497 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:13:40,498 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:13:40,498 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 14:13:40,501 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 14:13:40,502 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:13:40,504 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:13:40,509 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:13:40,509 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:13:40,510 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:13:40,510 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 14:13:40,510 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:13:40,511 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:13:40,511 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:13:40,512 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:13:40,512 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:13:40,512 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:13:40,514 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 14:13:40,516 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:13:40,519 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:13:40,531 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:13:40,531 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:13:40,531 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:13:40,532 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 13
[2020-09-25 14:13:40,532 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:13:40,533 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:13:40,533 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:13:40,534 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:13:40,534 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:13:40,534 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 14:13:40,537 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 14:13:40,539 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:13:40,541 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:13:40,546 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:13:40,547 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:13:40,547 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:13:40,547 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 14:13:40,548 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:13:40,548 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:13:40,549 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:13:40,549 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:13:40,549 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:13:40,550 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 14:13:40,552 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2020-09-25 14:13:40,553 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:13:40,555 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:13:40,557 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:13:40,558 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:13:40,558 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:13:40,558 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:13:40,558 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:13:40,559 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:13:40,559 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:13:40,560 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:13:40,560 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:13:40,560 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 14:13:40,563 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130
[2020-09-25 14:13:40,564 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:13:40,566 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:13:40,569 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:13:40,569 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:13:40,570 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:13:40,570 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 14:13:40,570 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:13:40,571 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:13:40,571 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:13:40,572 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:13:40,603 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:13:40,603 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 32
[2020-09-25 14:13:40,691 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 14:13:40,693 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2053293932]
[2020-09-25 14:13:40,696 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 14:13:40,696 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-25 14:13:40,698 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646183598]
[2020-09-25 14:13:40,710 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-25 14:13:40,710 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 14:13:40,738 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-25 14:13:40,739 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-25 14:13:40,743 INFO  L87              Difference]: Start difference. First operand 308 states. Second operand 4 states.
[2020-09-25 14:13:41,434 WARN  L193               SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 14:13:43,517 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 14:13:43,517 INFO  L93              Difference]: Finished difference Result 663 states and 799 transitions.
[2020-09-25 14:13:43,518 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-09-25 14:13:43,520 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 142
[2020-09-25 14:13:43,521 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 14:13:43,543 INFO  L225             Difference]: With dead ends: 663
[2020-09-25 14:13:43,543 INFO  L226             Difference]: Without dead ends: 466
[2020-09-25 14:13:43,550 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-25 14:13:43,574 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 466 states.
[2020-09-25 14:13:43,725 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 388.
[2020-09-25 14:13:43,729 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 388 states.
[2020-09-25 14:13:43,733 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 429 transitions.
[2020-09-25 14:13:43,735 INFO  L78                 Accepts]: Start accepts. Automaton has 388 states and 429 transitions. Word has length 142
[2020-09-25 14:13:43,737 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 14:13:43,737 INFO  L479      AbstractCegarLoop]: Abstraction has 388 states and 429 transitions.
[2020-09-25 14:13:43,737 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-25 14:13:43,737 INFO  L276                IsEmpty]: Start isEmpty. Operand 388 states and 429 transitions.
[2020-09-25 14:13:43,748 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 152
[2020-09-25 14:13:43,751 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 14:13:43,751 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]
[2020-09-25 14:13:43,752 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 14:13:43,752 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 14:13:43,752 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 14:13:43,753 INFO  L82        PathProgramCache]: Analyzing trace with hash 998179730, now seen corresponding path program 1 times
[2020-09-25 14:13:43,753 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 14:13:43,753 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [916106978]
[2020-09-25 14:13:43,753 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 14:13:43,815 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:13:43,876 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:13:43,998 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:13:44,171 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:13:47,681 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:13:48,474 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:13:48,665 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:13:48,860 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:13:48,861 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 14:13:48,861 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 6
[2020-09-25 14:13:48,861 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5041
[2020-09-25 14:13:48,861 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:13:48,862 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:13:48,862 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 12
[2020-09-25 14:13:48,862 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 81
[2020-09-25 14:13:48,862 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 89
[2020-09-25 14:13:48,863 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:13:49,211 WARN  L193               SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 14:13:49,213 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 14:13:49,264 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:13:49,304 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:13:49,555 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:13:49,556 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 14:13:49,556 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:13:49,556 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 288
[2020-09-25 14:13:49,557 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:13:49,557 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:13:49,558 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:13:49,558 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:13:49,558 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 77
[2020-09-25 14:13:49,559 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:13:49,605 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 14:13:49,606 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:13:49,607 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:13:49,610 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:13:49,610 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:13:49,611 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:13:49,611 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:13:49,611 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:13:49,611 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:13:49,612 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:13:49,612 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:13:49,612 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:13:49,612 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:13:49,618 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 14:13:49,618 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:13:49,620 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:13:49,624 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:13:49,624 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:13:49,624 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:13:49,625 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 14:13:49,625 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:13:49,625 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:13:49,625 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:13:49,625 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:13:49,626 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:13:49,626 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:13:49,627 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 14:13:49,628 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:13:49,632 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:13:49,641 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:13:49,642 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:13:49,642 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:13:49,642 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-25 14:13:49,642 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:13:49,642 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:13:49,643 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:13:49,643 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:13:49,643 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:13:49,643 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:13:49,645 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 14:13:49,646 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:13:49,647 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:13:49,651 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:13:49,651 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:13:49,651 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:13:49,651 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 14:13:49,651 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:13:49,652 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:13:49,652 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:13:49,652 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:13:49,652 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:13:49,653 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:13:49,667 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2020-09-25 14:13:49,668 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:13:49,670 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:13:49,676 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:13:49,677 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-25 14:13:49,677 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:13:49,677 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 14:13:49,677 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:13:49,677 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:13:49,678 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:13:49,678 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:13:49,678 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-09-25 14:13:49,678 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:13:49,681 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 14:13:49,682 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:13:49,683 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:13:49,685 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:13:49,686 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:13:49,686 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:13:49,686 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:13:49,686 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:13:49,686 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:13:49,687 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:13:49,687 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:13:49,687 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:13:49,687 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:13:49,691 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129
[2020-09-25 14:13:49,693 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:13:49,694 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:13:49,703 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:13:49,703 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:13:49,703 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:13:49,703 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-25 14:13:49,704 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:13:49,704 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:13:49,704 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 14:13:49,704 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:13:49,705 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:13:49,705 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:13:49,775 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139
[2020-09-25 14:13:49,777 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:13:49,778 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:13:49,780 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:13:49,780 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:13:49,780 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:13:49,781 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 14:13:49,781 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:13:49,781 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:13:49,781 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:13:49,781 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:13:49,782 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:13:49,782 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:13:49,813 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 14:13:49,814 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [916106978]
[2020-09-25 14:13:49,814 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 14:13:49,815 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-09-25 14:13:49,815 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316975005]
[2020-09-25 14:13:49,819 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-25 14:13:49,819 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 14:13:49,820 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-25 14:13:49,820 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-09-25 14:13:49,820 INFO  L87              Difference]: Start difference. First operand 388 states and 429 transitions. Second operand 9 states.
[2020-09-25 14:13:50,389 WARN  L193               SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 14:13:52,007 WARN  L193               SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 188
[2020-09-25 14:13:52,728 WARN  L193               SmtUtils]: Spent 629.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 190
[2020-09-25 14:13:53,066 WARN  L193               SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 14:13:53,468 WARN  L193               SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-25 14:13:53,827 WARN  L193               SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-25 14:13:54,478 WARN  L193               SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-25 14:13:54,841 WARN  L193               SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 200
[2020-09-25 14:13:55,263 WARN  L193               SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 14:13:55,929 WARN  L193               SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 192
[2020-09-25 14:13:57,186 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 14:13:57,186 INFO  L93              Difference]: Finished difference Result 1155 states and 1431 transitions.
[2020-09-25 14:13:57,190 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. 
[2020-09-25 14:13:57,191 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 151
[2020-09-25 14:13:57,192 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 14:13:57,203 INFO  L225             Difference]: With dead ends: 1155
[2020-09-25 14:13:57,203 INFO  L226             Difference]: Without dead ends: 830
[2020-09-25 14:13:57,208 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420
[2020-09-25 14:13:57,209 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 830 states.
[2020-09-25 14:13:57,328 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 619.
[2020-09-25 14:13:57,328 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 619 states.
[2020-09-25 14:13:57,332 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 692 transitions.
[2020-09-25 14:13:57,333 INFO  L78                 Accepts]: Start accepts. Automaton has 619 states and 692 transitions. Word has length 151
[2020-09-25 14:13:57,334 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 14:13:57,334 INFO  L479      AbstractCegarLoop]: Abstraction has 619 states and 692 transitions.
[2020-09-25 14:13:57,334 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-25 14:13:57,334 INFO  L276                IsEmpty]: Start isEmpty. Operand 619 states and 692 transitions.
[2020-09-25 14:13:57,337 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 167
[2020-09-25 14:13:57,337 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 14:13:57,337 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 14:13:57,337 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 14:13:57,338 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 14:13:57,338 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 14:13:57,338 INFO  L82        PathProgramCache]: Analyzing trace with hash 1400803721, now seen corresponding path program 1 times
[2020-09-25 14:13:57,338 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 14:13:57,339 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [100210149]
[2020-09-25 14:13:57,339 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 14:13:57,389 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:13:57,443 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:13:57,713 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:13:58,279 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:14:01,201 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:14:01,202 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 199
[2020-09-25 14:14:01,202 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 14:14:01,202 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3809
[2020-09-25 14:14:01,202 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:14:01,203 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:14:01,203 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 14:14:01,203 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-25 14:14:01,203 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 117
[2020-09-25 14:14:01,203 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 14:14:01,706 WARN  L193               SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 14:14:01,707 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 14:14:01,749 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:14:01,793 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:14:02,030 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:14:02,031 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 14:14:02,031 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:14:02,032 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 280
[2020-09-25 14:14:02,032 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:14:02,032 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:14:02,032 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:14:02,033 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:14:02,033 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-25 14:14:02,033 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:14:02,083 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 14:14:02,084 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:14:02,085 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:14:02,087 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:14:02,087 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:14:02,088 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:14:02,088 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:14:02,088 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:14:02,088 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:14:02,088 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:14:02,089 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:14:02,089 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:14:02,089 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 14:14:02,090 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 14:14:02,091 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:14:02,092 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:14:02,096 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:14:02,097 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:14:02,097 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:14:02,097 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 14:14:02,097 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:14:02,097 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:14:02,097 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:14:02,098 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:14:02,098 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:14:02,098 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 14:14:02,099 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 14:14:02,100 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:14:02,102 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:14:02,112 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:14:02,114 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:14:02,114 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:14:02,114 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-25 14:14:02,114 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:14:02,115 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:14:02,115 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:14:02,115 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:14:02,115 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:14:02,115 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:14:02,118 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 14:14:02,118 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:14:02,120 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:14:02,123 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:14:02,123 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:14:02,123 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:14:02,123 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:14:02,124 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:14:02,124 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:14:02,124 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:14:02,124 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:14:02,124 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 14:14:02,125 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 14:14:02,136 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2020-09-25 14:14:02,141 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:14:02,143 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:14:02,150 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:14:02,150 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 14:14:02,150 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:14:02,151 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 14:14:02,151 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:14:02,151 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:14:02,151 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:14:02,152 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:14:02,152 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 14:14:02,152 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:14:02,170 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133
[2020-09-25 14:14:02,172 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:14:02,173 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:14:02,187 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:14:02,192 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:14:02,193 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 14:14:02,193 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 14:14:02,193 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 20
[2020-09-25 14:14:02,193 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:14:02,194 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:14:02,194 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-25 14:14:02,194 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-09-25 14:14:02,194 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 14:14:02,195 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:14:02,214 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144
[2020-09-25 14:14:02,216 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:14:02,217 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:14:02,220 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:14:02,221 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:14:02,221 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:14:02,221 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 14:14:02,221 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:14:02,221 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:14:02,222 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:14:02,222 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:14:02,222 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:14:02,222 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:14:02,224 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154
[2020-09-25 14:14:02,226 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:14:02,228 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:14:02,250 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:14:02,250 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:14:02,250 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:14:02,250 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 23
[2020-09-25 14:14:02,251 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:14:02,251 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:14:02,251 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 14:14:02,251 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:14:02,251 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 14:14:02,252 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 14:14:02,356 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 14:14:02,357 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [100210149]
[2020-09-25 14:14:02,357 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 14:14:02,357 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2020-09-25 14:14:02,357 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357222507]
[2020-09-25 14:14:02,360 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 11 states
[2020-09-25 14:14:02,360 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 14:14:02,360 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2020-09-25 14:14:02,361 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110
[2020-09-25 14:14:02,362 INFO  L87              Difference]: Start difference. First operand 619 states and 692 transitions. Second operand 11 states.
[2020-09-25 14:14:02,887 WARN  L193               SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 14:14:04,312 WARN  L193               SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-25 14:14:04,669 WARN  L193               SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-25 14:14:05,050 WARN  L193               SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 14:14:05,442 WARN  L193               SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-25 14:14:05,775 WARN  L193               SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 14:14:06,541 WARN  L193               SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 14:14:06,848 WARN  L193               SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 14:14:07,276 WARN  L193               SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 14:14:09,017 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 14:14:09,017 INFO  L93              Difference]: Finished difference Result 1859 states and 2354 transitions.
[2020-09-25 14:14:09,018 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2020-09-25 14:14:09,018 INFO  L78                 Accepts]: Start accepts. Automaton has 11 states. Word has length 166
[2020-09-25 14:14:09,019 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 14:14:09,028 INFO  L225             Difference]: With dead ends: 1859
[2020-09-25 14:14:09,028 INFO  L226             Difference]: Without dead ends: 1350
[2020-09-25 14:14:09,032 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=202, Invalid=500, Unknown=0, NotChecked=0, Total=702
[2020-09-25 14:14:09,035 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1350 states.
[2020-09-25 14:14:09,210 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1350 to 953.
[2020-09-25 14:14:09,210 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 953 states.
[2020-09-25 14:14:09,217 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 953 states to 953 states and 1112 transitions.
[2020-09-25 14:14:09,219 INFO  L78                 Accepts]: Start accepts. Automaton has 953 states and 1112 transitions. Word has length 166
[2020-09-25 14:14:09,220 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 14:14:09,221 INFO  L479      AbstractCegarLoop]: Abstraction has 953 states and 1112 transitions.
[2020-09-25 14:14:09,221 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 11 states.
[2020-09-25 14:14:09,221 INFO  L276                IsEmpty]: Start isEmpty. Operand 953 states and 1112 transitions.
[2020-09-25 14:14:09,231 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 217
[2020-09-25 14:14:09,232 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 14:14:09,232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 14:14:09,233 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 14:14:09,233 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 14:14:09,233 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 14:14:09,234 INFO  L82        PathProgramCache]: Analyzing trace with hash -1314188149, now seen corresponding path program 1 times
[2020-09-25 14:14:09,234 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 14:14:09,234 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [485653]
[2020-09-25 14:14:09,235 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 14:14:09,300 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:14:09,358 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:14:09,513 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:14:13,784 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:14:14,338 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:14:14,338 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 263
[2020-09-25 14:14:14,338 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 14:14:14,338 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5034
[2020-09-25 14:14:14,340 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:14:14,340 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:14:14,340 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-09-25 14:14:14,341 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 143
[2020-09-25 14:14:14,341 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 77
[2020-09-25 14:14:14,341 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 14:14:14,654 WARN  L193               SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 14:14:14,655 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 14:14:14,664 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:14:14,673 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:14:14,759 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:14:14,760 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 14:14:14,760 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:14:14,760 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 94
[2020-09-25 14:14:14,760 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:14:14,760 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:14:14,761 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:14:14,761 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:14:14,761 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:14:14,761 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 14:14:14,792 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 14:14:14,793 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:14:14,794 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:14:14,795 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:14:14,795 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:14:14,796 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:14:14,796 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 14:14:14,796 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:14:14,796 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:14:14,796 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:14:14,797 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:14:14,797 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:14:14,797 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:14:14,798 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 14:14:14,799 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:14:14,800 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:14:14,801 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:14:14,802 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:14:14,802 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:14:14,802 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 14:14:14,802 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:14:14,803 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:14:14,803 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:14:14,803 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:14:14,803 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:14:14,803 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:14:14,804 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 14:14:14,805 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:14:14,806 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:14:14,809 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:14:14,809 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:14:14,810 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:14:14,810 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:14:14,810 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:14:14,810 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:14:14,811 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:14:14,811 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:14:14,811 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:14:14,811 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:14:14,813 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 14:14:14,813 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:14:14,814 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:14:14,816 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:14:14,816 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 14:14:14,816 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:14:14,816 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 14:14:14,817 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:14:14,817 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:14:14,817 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:14:14,817 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:14:14,817 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:14:14,818 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:14:14,825 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2020-09-25 14:14:14,826 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:14:14,828 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:14:14,830 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:14:14,830 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 14:14:14,830 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:14:14,831 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 14:14:14,831 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:14:14,831 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:14:14,831 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:14:14,831 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:14:14,832 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 3
[2020-09-25 14:14:14,832 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:14:14,846 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129
[2020-09-25 14:14:14,847 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:14:14,848 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:14:14,852 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:14:14,852 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 14:14:14,852 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:14:14,852 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 14:14:14,852 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:14:14,853 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:14:14,853 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:14:14,853 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:14:14,853 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-09-25 14:14:14,853 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 14:14:14,864 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136
[2020-09-25 14:14:14,870 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:14:14,877 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:14:14,930 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:14:15,352 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:14:15,353 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 72
[2020-09-25 14:14:15,353 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 14:14:15,353 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 480
[2020-09-25 14:14:15,353 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:14:15,354 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:14:15,354 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-09-25 14:14:15,354 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 45
[2020-09-25 14:14:15,354 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 25
[2020-09-25 14:14:15,354 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:14:15,370 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 14:14:15,371 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:14:15,373 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:14:15,379 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:14:15,380 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 27
[2020-09-25 14:14:15,380 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:14:15,380 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 14:14:15,380 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:14:15,381 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:14:15,381 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:14:15,381 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:14:15,381 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:14:15,382 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:14:15,384 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 14:14:15,385 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:14:15,386 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:14:15,390 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:14:15,390 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 14:14:15,391 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:14:15,391 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 14:14:15,391 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:14:15,391 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:14:15,392 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:14:15,392 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:14:15,392 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:14:15,392 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:14:15,394 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26
[2020-09-25 14:14:15,396 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:14:15,401 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:14:15,469 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:14:15,469 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 37
[2020-09-25 14:14:15,469 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:14:15,469 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 71
[2020-09-25 14:14:15,470 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:14:15,470 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:14:15,470 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-09-25 14:14:15,470 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:14:15,471 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 24
[2020-09-25 14:14:15,471 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:14:15,533 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-09-25 14:14:15,535 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:14:15,538 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:14:15,548 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:14:15,548 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 21
[2020-09-25 14:14:15,548 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:14:15,548 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-25 14:14:15,549 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:14:15,549 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:14:15,549 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-25 14:14:15,549 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:14:15,550 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 16
[2020-09-25 14:14:15,550 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:14:15,593 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-09-25 14:14:15,595 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:14:15,596 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:14:15,601 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:14:15,601 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:14:15,601 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:14:15,601 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 14:14:15,602 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:14:15,602 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:14:15,602 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-25 14:14:15,603 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:14:15,603 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 14:14:15,603 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:14:15,637 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19
[2020-09-25 14:14:15,638 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:14:15,640 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:14:15,644 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:14:15,644 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 14:14:15,644 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:14:15,645 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 14:14:15,645 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:14:15,645 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:14:15,645 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:14:15,645 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:14:15,646 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-09-25 14:14:15,646 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:14:15,651 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194
[2020-09-25 14:14:15,652 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:14:15,653 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:14:15,654 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:14:15,655 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:14:15,655 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:14:15,655 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 14:14:15,655 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:14:15,656 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:14:15,656 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:14:15,656 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:14:15,656 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:14:15,656 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 14:14:15,658 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204
[2020-09-25 14:14:15,658 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:14:15,660 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:14:15,661 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:14:15,661 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 14:14:15,661 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:14:15,662 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 14:14:15,662 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:14:15,662 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:14:15,662 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:14:15,663 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 14:14:15,663 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:14:15,663 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:14:15,752 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-09-25 14:14:15,752 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [485653]
[2020-09-25 14:14:15,753 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 14:14:15,753 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16
[2020-09-25 14:14:15,753 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293462206]
[2020-09-25 14:14:15,754 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 16 states
[2020-09-25 14:14:15,755 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 14:14:15,755 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-09-25 14:14:15,756 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240
[2020-09-25 14:14:15,756 INFO  L87              Difference]: Start difference. First operand 953 states and 1112 transitions. Second operand 16 states.
[2020-09-25 14:14:16,501 WARN  L193               SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 14:14:17,664 WARN  L193               SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 14:14:18,404 WARN  L193               SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 14:14:18,749 WARN  L193               SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 14:14:19,186 WARN  L193               SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188