/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product54.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 16:52:08,386 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 16:52:08,389 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 16:52:08,420 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 16:52:08,421 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 16:52:08,422 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 16:52:08,423 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 16:52:08,425 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 16:52:08,427 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 16:52:08,428 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 16:52:08,429 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 16:52:08,430 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 16:52:08,431 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 16:52:08,432 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 16:52:08,433 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 16:52:08,435 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 16:52:08,435 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 16:52:08,437 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 16:52:08,438 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 16:52:08,440 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 16:52:08,442 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 16:52:08,443 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 16:52:08,445 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 16:52:08,446 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 16:52:08,448 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 16:52:08,448 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 16:52:08,449 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 16:52:08,450 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 16:52:08,450 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 16:52:08,452 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 16:52:08,452 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 16:52:08,454 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 16:52:08,455 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 16:52:08,456 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 16:52:08,457 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 16:52:08,457 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 16:52:08,458 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 16:52:08,459 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 16:52:08,459 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 16:52:08,460 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 16:52:08,461 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 16:52:08,461 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-24 16:52:08,489 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 16:52:08,489 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 16:52:08,491 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 16:52:08,491 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 16:52:08,491 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 16:52:08,491 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 16:52:08,492 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 16:52:08,492 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 16:52:08,492 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 16:52:08,492 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 16:52:08,492 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 16:52:08,493 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 16:52:08,493 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 16:52:08,493 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 16:52:08,493 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 16:52:08,493 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 16:52:08,494 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 16:52:08,494 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 16:52:08,494 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 16:52:08,494 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 16:52:08,494 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 16:52:08,495 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:52:08,495 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 16:52:08,495 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 16:52:08,495 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 16:52:08,495 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 16:52:08,496 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 16:52:08,496 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 16:52:08,496 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 16:52:08,496 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true;
[2020-09-24 16:52:08,932 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 16:52:08,949 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 16:52:08,954 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 16:52:08,956 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 16:52:08,956 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 16:52:08,958 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product54.cil.c
[2020-09-24 16:52:09,047 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bc601c849/54c7916eb0204c249a5acb18e39c9037/FLAG0826a010a
[2020-09-24 16:52:09,705 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 16:52:09,706 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product54.cil.c
[2020-09-24 16:52:09,722 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bc601c849/54c7916eb0204c249a5acb18e39c9037/FLAG0826a010a
[2020-09-24 16:52:09,924 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bc601c849/54c7916eb0204c249a5acb18e39c9037
[2020-09-24 16:52:09,937 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 16:52:09,943 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 16:52:09,944 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 16:52:09,944 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 16:52:09,948 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 16:52:09,950 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:52:09" (1/1) ...
[2020-09-24 16:52:09,954 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:52:09, skipping insertion in model container
[2020-09-24 16:52:09,954 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:52:09" (1/1) ...
[2020-09-24 16:52:09,963 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 16:52:10,016 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 16:52:10,429 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:52:10,443 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 16:52:10,611 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:52:10,650 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 16:52:10,650 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:52:10 WrapperNode
[2020-09-24 16:52:10,651 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 16:52:10,652 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 16:52:10,652 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 16:52:10,652 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 16:52:10,666 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:52:10" (1/1) ...
[2020-09-24 16:52:10,667 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:52:10" (1/1) ...
[2020-09-24 16:52:10,687 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:52:10" (1/1) ...
[2020-09-24 16:52:10,687 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:52:10" (1/1) ...
[2020-09-24 16:52:10,720 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:52:10" (1/1) ...
[2020-09-24 16:52:10,732 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:52:10" (1/1) ...
[2020-09-24 16:52:10,737 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:52:10" (1/1) ...
[2020-09-24 16:52:10,746 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 16:52:10,746 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 16:52:10,746 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 16:52:10,747 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 16:52:10,748 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:52:10" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:52:10,838 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 16:52:10,839 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 16:52:10,839 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:52:10,839 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 16:52:10,839 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 16:52:10,840 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 16:52:10,840 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 16:52:10,840 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 16:52:10,840 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 16:52:10,840 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-24 16:52:10,841 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-24 16:52:10,841 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 16:52:10,841 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 16:52:10,841 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 16:52:10,841 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 16:52:10,842 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 16:52:10,842 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 16:52:10,842 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-24 16:52:10,842 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 16:52:10,843 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 16:52:10,843 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 16:52:10,843 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 16:52:10,843 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 16:52:10,844 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 16:52:10,844 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:52:10,844 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 16:52:10,844 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 16:52:10,844 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 16:52:10,845 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 16:52:10,845 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 16:52:10,845 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 16:52:10,845 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-24 16:52:10,845 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor
[2020-09-24 16:52:10,845 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 16:52:10,846 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 16:52:10,846 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 16:52:10,846 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 16:52:10,846 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 16:52:10,846 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 16:52:10,846 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-24 16:52:10,847 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-24 16:52:10,847 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-24 16:52:10,847 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 16:52:10,847 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 16:52:10,847 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 16:52:10,847 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 16:52:10,848 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 16:52:10,848 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 16:52:10,848 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 16:52:10,848 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 16:52:10,848 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 16:52:10,848 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-24 16:52:10,849 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-24 16:52:10,849 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 16:52:10,849 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 16:52:10,849 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 16:52:10,849 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 16:52:10,849 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 16:52:10,850 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 16:52:10,850 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 16:52:10,850 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 16:52:10,850 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 16:52:10,850 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 16:52:10,850 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 16:52:10,850 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 16:52:10,851 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 16:52:10,851 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 16:52:10,851 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-24 16:52:10,851 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 16:52:10,851 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 16:52:10,851 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 16:52:10,852 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 16:52:10,852 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 16:52:10,852 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 16:52:10,852 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 16:52:10,852 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 16:52:10,852 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 16:52:10,853 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 16:52:10,853 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 16:52:10,853 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:52:10,853 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:52:10,853 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 16:52:10,853 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 16:52:10,854 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 16:52:10,854 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 16:52:10,854 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-24 16:52:10,854 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 16:52:10,854 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 16:52:10,854 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 16:52:10,854 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 16:52:10,855 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-24 16:52:10,855 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-24 16:52:10,855 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-24 16:52:10,855 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor
[2020-09-24 16:52:10,855 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 16:52:10,855 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 16:52:10,855 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 16:52:10,856 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 16:52:12,116 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 16:52:12,116 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 16:52:12,124 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:52:12 BoogieIcfgContainer
[2020-09-24 16:52:12,124 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 16:52:12,125 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 16:52:12,125 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 16:52:12,129 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 16:52:12,129 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:52:09" (1/3) ...
[2020-09-24 16:52:12,130 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28de33ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:52:12, skipping insertion in model container
[2020-09-24 16:52:12,130 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:52:10" (2/3) ...
[2020-09-24 16:52:12,131 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28de33ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:52:12, skipping insertion in model container
[2020-09-24 16:52:12,131 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:52:12" (3/3) ...
[2020-09-24 16:52:12,133 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product54.cil.c
[2020-09-24 16:52:12,145 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 16:52:12,157 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 16:52:12,179 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 16:52:12,213 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 16:52:12,213 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 16:52:12,213 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 16:52:12,214 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 16:52:12,214 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 16:52:12,214 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 16:52:12,214 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 16:52:12,214 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 16:52:12,244 INFO  L276                IsEmpty]: Start isEmpty. Operand 347 states.
[2020-09-24 16:52:12,263 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-24 16:52:12,263 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:52:12,265 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 16:52:12,265 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:52:12,271 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:52:12,272 INFO  L82        PathProgramCache]: Analyzing trace with hash 900449918, now seen corresponding path program 1 times
[2020-09-24 16:52:12,282 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:52:12,283 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1399769883]
[2020-09-24 16:52:12,283 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:52:12,627 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:12,745 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:12,987 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:14,639 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:18,424 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:18,424 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-24 16:52:18,425 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 16:52:18,425 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5787
[2020-09-24 16:52:18,427 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:18,427 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:52:18,427 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 129
[2020-09-24 16:52:18,436 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:52:18,437 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 11
[2020-09-24 16:52:18,812 WARN  L193               SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:52:18,815 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:52:18,842 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:18,856 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:19,001 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:19,002 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:52:19,002 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:19,002 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 157
[2020-09-24 16:52:19,002 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:19,003 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:52:19,003 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:52:19,003 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:52:19,003 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:52:19,058 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:52:19,059 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:19,060 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:19,062 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:19,062 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:52:19,063 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:19,063 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:52:19,063 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:19,063 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:52:19,064 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:52:19,064 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:52:19,064 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:52:19,065 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:52:19,066 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:19,067 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:19,069 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:19,069 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:52:19,069 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:19,070 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:52:19,070 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:19,070 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:52:19,070 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:52:19,070 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:52:19,071 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:52:19,072 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:52:19,073 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:19,074 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:19,079 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:19,079 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:52:19,080 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:19,080 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 16:52:19,080 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:19,080 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:52:19,080 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:52:19,081 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:52:19,081 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:52:19,083 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:52:19,083 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:19,084 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:19,086 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:19,087 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:52:19,087 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:19,087 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:52:19,087 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:19,088 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:52:19,088 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:52:19,088 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:52:19,088 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:52:19,089 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 16:52:19,090 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:19,092 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:19,094 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:19,094 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:52:19,094 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:19,095 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:52:19,095 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:19,095 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:52:19,095 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:52:19,123 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:52:19,123 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 28
[2020-09-24 16:52:19,126 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 16:52:19,129 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:19,131 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:19,134 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:19,134 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:52:19,134 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:19,135 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:52:19,135 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:19,135 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:52:19,136 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:52:19,136 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:52:19,136 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:52:19,139 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-24 16:52:19,143 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:19,144 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:19,147 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:19,147 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:52:19,147 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:19,147 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:52:19,148 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:19,148 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:52:19,148 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:52:19,148 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:52:19,149 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:52:19,183 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 16:52:19,184 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1399769883]
[2020-09-24 16:52:19,186 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:52:19,187 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 16:52:19,187 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315123595]
[2020-09-24 16:52:19,197 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 16:52:19,197 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:52:19,215 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 16:52:19,216 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 16:52:19,219 INFO  L87              Difference]: Start difference. First operand 347 states. Second operand 3 states.
[2020-09-24 16:52:20,745 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:52:20,746 INFO  L93              Difference]: Finished difference Result 562 states and 667 transitions.
[2020-09-24 16:52:20,746 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-09-24 16:52:20,748 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 153
[2020-09-24 16:52:20,749 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:52:20,769 INFO  L225             Difference]: With dead ends: 562
[2020-09-24 16:52:20,769 INFO  L226             Difference]: Without dead ends: 340
[2020-09-24 16:52:20,776 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 16:52:20,799 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 340 states.
[2020-09-24 16:52:20,887 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 296.
[2020-09-24 16:52:20,889 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 296 states.
[2020-09-24 16:52:20,892 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 324 transitions.
[2020-09-24 16:52:20,894 INFO  L78                 Accepts]: Start accepts. Automaton has 296 states and 324 transitions. Word has length 153
[2020-09-24 16:52:20,895 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:52:20,895 INFO  L479      AbstractCegarLoop]: Abstraction has 296 states and 324 transitions.
[2020-09-24 16:52:20,895 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 16:52:20,895 INFO  L276                IsEmpty]: Start isEmpty. Operand 296 states and 324 transitions.
[2020-09-24 16:52:20,901 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 155
[2020-09-24 16:52:20,901 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:52:20,901 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 16:52:20,902 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 16:52:20,902 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:52:20,902 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:52:20,902 INFO  L82        PathProgramCache]: Analyzing trace with hash 773490884, now seen corresponding path program 1 times
[2020-09-24 16:52:20,903 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:52:20,903 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1058042659]
[2020-09-24 16:52:20,903 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:52:20,953 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:21,006 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:21,098 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:22,651 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:27,886 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:27,886 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 187
[2020-09-24 16:52:27,886 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 16:52:27,886 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6929
[2020-09-24 16:52:27,887 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:27,887 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 16:52:27,887 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 77
[2020-09-24 16:52:27,887 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 94
[2020-09-24 16:52:27,887 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:52:28,280 WARN  L193               SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:52:28,282 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:52:28,319 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:28,358 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:28,593 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:28,593 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:52:28,594 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:28,594 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 272
[2020-09-24 16:52:28,594 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:28,594 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:52:28,595 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:52:28,595 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 73
[2020-09-24 16:52:28,595 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:52:28,636 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:52:28,637 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:28,639 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:28,643 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:28,643 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:52:28,643 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:28,643 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:52:28,643 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:28,643 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:52:28,644 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:52:28,646 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:52:28,646 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 16:52:28,648 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:52:28,649 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:28,650 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:28,652 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:28,653 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:52:28,653 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:28,653 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:52:28,653 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:28,654 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:52:28,654 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:52:28,654 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:52:28,654 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:52:28,656 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:52:28,657 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:28,659 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:28,666 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:28,667 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:52:28,667 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:28,667 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 16:52:28,668 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:28,668 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:52:28,668 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:52:28,668 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:52:28,668 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:52:28,670 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:52:28,671 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:28,673 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:28,675 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:28,676 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:52:28,676 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:28,676 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:52:28,676 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:28,677 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:52:28,677 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:52:28,677 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:52:28,677 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:52:28,679 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122
[2020-09-24 16:52:28,680 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:28,681 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:28,684 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:28,685 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:52:28,685 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:28,685 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:52:28,685 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:28,685 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:52:28,686 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:52:28,686 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:52:28,686 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:52:28,688 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132
[2020-09-24 16:52:28,689 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:28,691 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:28,698 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:28,698 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:52:28,698 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:28,699 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 16:52:28,699 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:28,699 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 16:52:28,699 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:52:28,700 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:52:28,700 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:52:28,740 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142
[2020-09-24 16:52:28,741 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:28,742 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:28,744 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:28,744 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:52:28,744 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:28,745 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:52:28,745 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:28,745 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:52:28,745 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:52:28,746 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:52:28,746 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:52:28,777 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 16:52:28,778 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1058042659]
[2020-09-24 16:52:28,778 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:52:28,778 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-24 16:52:28,778 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567370439]
[2020-09-24 16:52:28,780 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-24 16:52:28,781 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:52:28,781 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-24 16:52:28,781 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-24 16:52:28,782 INFO  L87              Difference]: Start difference. First operand 296 states and 324 transitions. Second operand 8 states.
[2020-09-24 16:52:29,341 WARN  L193               SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:52:31,189 WARN  L193               SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 16:52:31,579 WARN  L193               SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 192
[2020-09-24 16:52:32,053 WARN  L193               SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:52:32,513 WARN  L193               SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 16:52:32,883 WARN  L193               SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:52:33,225 WARN  L193               SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:52:33,538 WARN  L193               SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:52:35,260 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:52:35,260 INFO  L93              Difference]: Finished difference Result 710 states and 846 transitions.
[2020-09-24 16:52:35,261 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-24 16:52:35,261 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 154
[2020-09-24 16:52:35,263 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:52:35,270 INFO  L225             Difference]: With dead ends: 710
[2020-09-24 16:52:35,270 INFO  L226             Difference]: Without dead ends: 524
[2020-09-24 16:52:35,274 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-24 16:52:35,275 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 524 states.
[2020-09-24 16:52:35,362 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 476.
[2020-09-24 16:52:35,362 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 476 states.
[2020-09-24 16:52:35,366 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 541 transitions.
[2020-09-24 16:52:35,367 INFO  L78                 Accepts]: Start accepts. Automaton has 476 states and 541 transitions. Word has length 154
[2020-09-24 16:52:35,367 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:52:35,367 INFO  L479      AbstractCegarLoop]: Abstraction has 476 states and 541 transitions.
[2020-09-24 16:52:35,367 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-24 16:52:35,368 INFO  L276                IsEmpty]: Start isEmpty. Operand 476 states and 541 transitions.
[2020-09-24 16:52:35,372 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 173
[2020-09-24 16:52:35,372 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:52:35,372 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 16:52:35,373 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 16:52:35,373 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:52:35,373 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:52:35,373 INFO  L82        PathProgramCache]: Analyzing trace with hash 2133128237, now seen corresponding path program 1 times
[2020-09-24 16:52:35,373 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:52:35,374 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2124810615]
[2020-09-24 16:52:35,374 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:52:35,426 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:35,483 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:35,769 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:35,770 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 207
[2020-09-24 16:52:35,770 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:35,770 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 340
[2020-09-24 16:52:35,771 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:35,771 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:52:35,771 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 153
[2020-09-24 16:52:35,771 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-24 16:52:35,771 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:52:36,066 WARN  L193               SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:52:36,067 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:52:36,081 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:36,091 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:36,202 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:36,203 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:52:36,203 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:36,203 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 120
[2020-09-24 16:52:36,203 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:36,204 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:52:36,204 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:52:36,204 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:52:36,204 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:52:36,241 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:52:36,242 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:36,243 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:36,245 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:36,245 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:52:36,246 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:36,246 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:52:36,246 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:36,246 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:52:36,247 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:52:36,247 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:52:36,247 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:52:36,248 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:52:36,249 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:36,250 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:36,252 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:36,252 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:52:36,253 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:36,253 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:52:36,253 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:36,253 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:52:36,253 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:52:36,254 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:52:36,254 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:52:36,255 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:52:36,256 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:36,257 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:36,261 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:36,261 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:52:36,262 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:36,262 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:52:36,262 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:36,262 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:52:36,263 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:52:36,263 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:52:36,263 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:52:36,264 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:52:36,265 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:36,266 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:36,268 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:36,268 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:52:36,268 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:36,268 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:52:36,269 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:36,269 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:52:36,269 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:52:36,269 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:52:36,270 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:52:36,280 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116
[2020-09-24 16:52:36,281 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:36,282 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:36,285 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:36,285 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 16:52:36,285 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:36,286 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:52:36,286 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:36,286 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:52:36,286 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:52:36,287 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:52:36,287 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:52:36,296 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129
[2020-09-24 16:52:36,297 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:36,299 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:36,303 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:36,303 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 16:52:36,303 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:36,303 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:52:36,304 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:36,304 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:52:36,304 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:52:36,304 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-24 16:52:36,304 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:52:36,307 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-24 16:52:36,308 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:36,310 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:36,311 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:36,312 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:52:36,312 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:36,312 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:52:36,312 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:36,313 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:52:36,313 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:52:36,313 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:52:36,313 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:52:36,315 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-24 16:52:36,316 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:36,317 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:36,319 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:36,319 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:52:36,319 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:36,319 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:52:36,320 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:36,320 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:52:36,320 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:52:36,320 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:52:36,321 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:52:36,322 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160
[2020-09-24 16:52:36,323 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:36,324 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:36,326 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:52:36,326 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:52:36,326 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:52:36,326 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:52:36,326 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:52:36,327 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:52:36,327 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:52:36,327 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:52:36,327 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:52:36,362 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 16:52:36,363 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2124810615]
[2020-09-24 16:52:36,363 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:52:36,363 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-24 16:52:36,364 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378443845]
[2020-09-24 16:52:36,365 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-24 16:52:36,365 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:52:36,365 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-24 16:52:36,365 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-24 16:52:36,366 INFO  L87              Difference]: Start difference. First operand 476 states and 541 transitions. Second operand 6 states.
[2020-09-24 16:52:36,880 WARN  L193               SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:52:38,663 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:52:38,663 INFO  L93              Difference]: Finished difference Result 941 states and 1146 transitions.
[2020-09-24 16:52:38,664 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2020-09-24 16:52:38,664 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 172
[2020-09-24 16:52:38,665 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:52:38,670 INFO  L225             Difference]: With dead ends: 941
[2020-09-24 16:52:38,670 INFO  L226             Difference]: Without dead ends: 575
[2020-09-24 16:52:38,673 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2020-09-24 16:52:38,674 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 575 states.
[2020-09-24 16:52:38,750 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 470.
[2020-09-24 16:52:38,750 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 470 states.
[2020-09-24 16:52:38,753 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 529 transitions.
[2020-09-24 16:52:38,754 INFO  L78                 Accepts]: Start accepts. Automaton has 470 states and 529 transitions. Word has length 172
[2020-09-24 16:52:38,754 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:52:38,755 INFO  L479      AbstractCegarLoop]: Abstraction has 470 states and 529 transitions.
[2020-09-24 16:52:38,755 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-24 16:52:38,755 INFO  L276                IsEmpty]: Start isEmpty. Operand 470 states and 529 transitions.
[2020-09-24 16:52:38,758 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 178
[2020-09-24 16:52:38,758 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:52:38,759 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 16:52:38,759 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 16:52:38,759 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:52:38,759 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:52:38,759 INFO  L82        PathProgramCache]: Analyzing trace with hash -129074068, now seen corresponding path program 1 times
[2020-09-24 16:52:38,760 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:52:38,760 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [465908080]
[2020-09-24 16:52:38,760 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:52:38,807 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:52:38,859 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:38,951 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:39,086 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:39,273 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:39,978 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:42,740 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:52:44,353 FATAL L256   erpolLogProxyWrapper]: Now shrinking...