/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 --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_spec2_product19.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 08:38:00,248 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 08:38:00,253 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 08:38:00,294 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 08:38:00,295 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 08:38:00,302 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 08:38:00,305 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 08:38:00,308 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 08:38:00,311 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 08:38:00,314 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 08:38:00,315 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 08:38:00,316 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 08:38:00,317 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 08:38:00,320 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 08:38:00,322 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 08:38:00,324 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 08:38:00,326 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 08:38:00,327 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 08:38:00,328 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 08:38:00,337 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 08:38:00,339 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 08:38:00,340 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 08:38:00,341 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 08:38:00,342 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 08:38:00,360 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 08:38:00,360 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 08:38:00,361 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 08:38:00,365 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 08:38:00,365 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 08:38:00,367 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 08:38:00,367 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 08:38:00,368 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 08:38:00,371 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 08:38:00,372 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 08:38:00,373 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 08:38:00,374 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 08:38:00,375 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 08:38:00,375 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 08:38:00,375 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 08:38:00,376 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 08:38:00,377 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 08:38:00,378 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 08:38:00,423 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 08:38:00,424 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 08:38:00,426 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 08:38:00,426 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 08:38:00,426 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 08:38:00,427 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 08:38:00,427 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 08:38:00,427 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 08:38:00,427 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 08:38:00,428 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 08:38:00,428 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 08:38:00,429 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 08:38:00,429 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 08:38:00,429 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 08:38:00,430 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 08:38:00,430 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 08:38:00,430 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 08:38:00,430 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 08:38:00,431 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 08:38:00,431 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 08:38:00,431 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 08:38:00,431 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 08:38:00,431 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 08:38:00,432 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 08:38:00,432 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 08:38:00,432 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 08:38:00,432 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 08:38:00,432 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 08:38:00,433 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 08:38:00,433 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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true;
[2020-09-25 08:38:00,911 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 08:38:00,929 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 08:38:00,933 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 08:38:00,935 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 08:38:00,936 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 08:38:00,937 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product19.cil.c
[2020-09-25 08:38:01,023 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f35bf9b44/e88a31cf2d8f474d9349f0f82ceccf3c/FLAG425932056
[2020-09-25 08:38:01,678 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 08:38:01,680 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product19.cil.c
[2020-09-25 08:38:01,697 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f35bf9b44/e88a31cf2d8f474d9349f0f82ceccf3c/FLAG425932056
[2020-09-25 08:38:01,882 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f35bf9b44/e88a31cf2d8f474d9349f0f82ceccf3c
[2020-09-25 08:38:01,897 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 08:38:01,904 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 08:38:01,905 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 08:38:01,905 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 08:38:01,909 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 08:38:01,911 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:38:01" (1/1) ...
[2020-09-25 08:38:01,916 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:01, skipping insertion in model container
[2020-09-25 08:38:01,916 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:38:01" (1/1) ...
[2020-09-25 08:38:01,926 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 08:38:01,999 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 08:38:02,377 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 08:38:02,407 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 08:38:02,604 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 08:38:02,643 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 08:38:02,644 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:02 WrapperNode
[2020-09-25 08:38:02,644 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 08:38:02,645 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 08:38:02,645 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 08:38:02,646 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 08:38:02,664 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:02" (1/1) ...
[2020-09-25 08:38:02,664 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:02" (1/1) ...
[2020-09-25 08:38:02,686 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:02" (1/1) ...
[2020-09-25 08:38:02,686 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:02" (1/1) ...
[2020-09-25 08:38:02,718 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:02" (1/1) ...
[2020-09-25 08:38:02,729 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:02" (1/1) ...
[2020-09-25 08:38:02,735 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:02" (1/1) ...
[2020-09-25 08:38:02,744 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 08:38:02,745 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 08:38:02,745 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 08:38:02,745 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 08:38:02,747 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:02" (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 08:38:02,826 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 08:38:02,826 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 08:38:02,826 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 08:38:02,827 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 08:38:02,827 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 08:38:02,827 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 08:38:02,827 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 08:38:02,827 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 08:38:02,828 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 08:38:02,828 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 08:38:02,828 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 08:38:02,828 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 08:38:02,828 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 08:38:02,829 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 08:38:02,829 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 08:38:02,829 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 08:38:02,829 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-25 08:38:02,829 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 08:38:02,830 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 08:38:02,830 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 08:38:02,830 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 08:38:02,831 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 08:38:02,831 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1
[2020-09-25 08:38:02,831 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2
[2020-09-25 08:38:02,831 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 08:38:02,831 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 08:38:02,831 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 08:38:02,832 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 08:38:02,832 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 08:38:02,832 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 08:38:02,832 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 08:38:02,832 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 08:38:02,833 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-25 08:38:02,833 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-25 08:38:02,833 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 08:38:02,833 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 08:38:02,833 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 08:38:02,833 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 08:38:02,834 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 08:38:02,834 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 08:38:02,834 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 08:38:02,834 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 08:38:02,834 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 08:38:02,834 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 08:38:02,835 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 08:38:02,835 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 08:38:02,835 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 08:38:02,835 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 08:38:02,835 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 08:38:02,835 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 08:38:02,836 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 08:38:02,836 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 08:38:02,836 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 08:38:02,836 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 08:38:02,836 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 08:38:02,836 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 08:38:02,836 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 08:38:02,837 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 08:38:02,837 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 08:38:02,837 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 08:38:02,837 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 08:38:02,837 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 08:38:02,838 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 08:38:02,838 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 08:38:02,838 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 08:38:02,838 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 08:38:02,838 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-25 08:38:02,838 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 08:38:02,838 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 08:38:02,839 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 08:38:02,839 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 08:38:02,839 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 08:38:02,839 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1
[2020-09-25 08:38:02,839 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 08:38:02,839 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 08:38:02,840 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 08:38:02,840 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 08:38:02,840 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 08:38:02,840 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 08:38:02,840 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 08:38:02,841 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2
[2020-09-25 08:38:02,841 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 08:38:02,841 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 08:38:02,841 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-25 08:38:02,841 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 08:38:02,841 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 08:38:02,841 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-25 08:38:02,842 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 08:38:02,842 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 08:38:02,842 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 08:38:02,842 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 08:38:02,842 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 08:38:04,116 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 08:38:04,116 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 08:38:04,124 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:38:04 BoogieIcfgContainer
[2020-09-25 08:38:04,124 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 08:38:04,126 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 08:38:04,126 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 08:38:04,130 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 08:38:04,130 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:38:01" (1/3) ...
[2020-09-25 08:38:04,131 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@188aaac2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:38:04, skipping insertion in model container
[2020-09-25 08:38:04,131 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:02" (2/3) ...
[2020-09-25 08:38:04,132 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@188aaac2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:38:04, skipping insertion in model container
[2020-09-25 08:38:04,132 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:38:04" (3/3) ...
[2020-09-25 08:38:04,135 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec2_product19.cil.c
[2020-09-25 08:38:04,147 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 08:38:04,159 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 08:38:04,182 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 08:38:04,217 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 08:38:04,218 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 08:38:04,218 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 08:38:04,218 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 08:38:04,218 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 08:38:04,218 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 08:38:04,219 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 08:38:04,219 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 08:38:04,246 INFO  L276                IsEmpty]: Start isEmpty. Operand 296 states.
[2020-09-25 08:38:04,264 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 149
[2020-09-25 08:38:04,264 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 08:38:04,266 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]
[2020-09-25 08:38:04,266 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:38:04,272 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:38:04,273 INFO  L82        PathProgramCache]: Analyzing trace with hash -362400732, now seen corresponding path program 1 times
[2020-09-25 08:38:04,285 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:38:04,285 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1678688103]
[2020-09-25 08:38:04,286 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:38:04,704 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:04,832 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:05,046 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:06,474 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:07,464 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:08,315 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:09,768 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:09,769 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 181
[2020-09-25 08:38:09,770 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-25 08:38:09,770 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5052
[2020-09-25 08:38:09,776 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:09,777 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:09,777 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:09,778 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 136
[2020-09-25 08:38:09,779 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:09,780 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 8
[2020-09-25 08:38:10,283 WARN  L193               SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 08:38:10,291 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 08:38:10,315 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:10,326 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:10,446 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:10,446 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-25 08:38:10,447 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:10,447 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 130
[2020-09-25 08:38:10,447 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:10,447 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:10,448 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:10,448 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:10,448 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:10,449 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:10,531 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-25 08:38:10,534 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:10,536 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:10,538 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:10,538 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:38:10,539 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:10,539 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:38:10,539 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:10,539 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:10,540 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:10,540 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:10,540 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:10,540 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:10,543 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-25 08:38:10,544 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:10,546 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:10,548 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:10,548 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:38:10,548 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:10,548 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:38:10,549 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:10,549 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:10,549 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:10,549 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:10,550 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:10,550 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:10,552 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-25 08:38:10,553 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:10,555 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:10,570 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:10,571 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:38:10,571 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:10,571 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 17
[2020-09-25 08:38:10,572 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:10,572 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:10,572 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:10,572 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:10,573 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:10,573 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:10,575 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-25 08:38:10,576 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:10,577 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:10,579 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:10,580 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:38:10,580 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:10,580 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:38:10,580 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:10,581 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:10,581 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:10,581 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:10,581 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:10,581 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:10,593 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-25 08:38:10,594 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:10,595 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:10,597 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:10,598 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 08:38:10,598 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:10,598 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:38:10,599 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:10,599 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:10,600 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:10,600 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:10,601 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:10,601 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 08:38:10,604 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125
[2020-09-25 08:38:10,608 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:10,610 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:10,613 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:10,614 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:38:10,614 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:10,614 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 08:38:10,615 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:10,615 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:10,616 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:10,616 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 08:38:10,617 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:10,617 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 08:38:10,621 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135
[2020-09-25 08:38:10,622 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:10,628 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:10,630 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:10,631 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:38:10,631 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:10,632 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 08:38:10,632 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:10,633 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:10,633 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:10,633 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 08:38:10,634 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:10,635 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 08:38:10,698 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 08:38:10,699 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1678688103]
[2020-09-25 08:38:10,702 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 08:38:10,703 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-25 08:38:10,704 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585612772]
[2020-09-25 08:38:10,720 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-25 08:38:10,720 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 08:38:10,741 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-25 08:38:10,747 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2020-09-25 08:38:10,751 INFO  L87              Difference]: Start difference. First operand 296 states. Second operand 4 states.
[2020-09-25 08:38:12,617 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 08:38:12,618 INFO  L93              Difference]: Finished difference Result 441 states and 525 transitions.
[2020-09-25 08:38:12,619 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2020-09-25 08:38:12,621 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 148
[2020-09-25 08:38:12,622 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 08:38:12,654 INFO  L225             Difference]: With dead ends: 441
[2020-09-25 08:38:12,655 INFO  L226             Difference]: Without dead ends: 287
[2020-09-25 08:38:12,663 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2020-09-25 08:38:12,687 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 287 states.
[2020-09-25 08:38:12,846 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 239.
[2020-09-25 08:38:12,848 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 239 states.
[2020-09-25 08:38:12,851 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 259 transitions.
[2020-09-25 08:38:12,854 INFO  L78                 Accepts]: Start accepts. Automaton has 239 states and 259 transitions. Word has length 148
[2020-09-25 08:38:12,857 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 08:38:12,865 INFO  L479      AbstractCegarLoop]: Abstraction has 239 states and 259 transitions.
[2020-09-25 08:38:12,865 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-25 08:38:12,866 INFO  L276                IsEmpty]: Start isEmpty. Operand 239 states and 259 transitions.
[2020-09-25 08:38:12,874 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 150
[2020-09-25 08:38:12,874 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 08:38:12,875 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]
[2020-09-25 08:38:12,875 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 08:38:12,875 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:38:12,876 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:38:12,876 INFO  L82        PathProgramCache]: Analyzing trace with hash -2100826349, now seen corresponding path program 1 times
[2020-09-25 08:38:12,876 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:38:12,876 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2063092100]
[2020-09-25 08:38:12,877 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:38:12,946 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:13,048 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:13,156 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:14,833 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:15,649 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:16,303 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:18,002 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:18,003 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 182
[2020-09-25 08:38:18,003 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-25 08:38:18,003 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5051
[2020-09-25 08:38:18,004 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:18,004 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:18,004 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:38:18,004 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 135
[2020-09-25 08:38:18,004 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 3
[2020-09-25 08:38:18,005 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:18,289 WARN  L193               SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 08:38:18,290 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 08:38:18,300 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:18,310 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:18,402 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:18,402 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-25 08:38:18,402 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:18,403 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 100
[2020-09-25 08:38:18,403 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:18,403 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:18,403 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:18,404 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:18,404 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:18,404 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:18,441 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-25 08:38:18,442 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:18,443 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:18,445 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:18,445 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:38:18,445 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:18,445 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:38:18,446 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:18,446 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:18,446 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:18,446 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:18,447 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:18,447 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:18,448 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-25 08:38:18,449 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:18,450 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:18,451 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:18,452 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:38:18,452 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:18,452 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:38:18,452 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:18,452 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:18,453 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:18,453 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:18,453 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:18,453 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:18,454 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-25 08:38:18,455 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:18,456 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:18,459 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:18,460 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:38:18,460 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:18,460 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 08:38:18,460 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:18,461 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:18,461 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:18,461 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:18,461 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:18,462 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:18,463 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-25 08:38:18,464 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:18,465 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:18,467 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:18,468 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:38:18,468 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:18,469 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:38:18,469 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:18,469 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:18,470 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:18,470 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:18,470 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:18,470 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:18,482 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-25 08:38:18,483 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:18,484 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:18,486 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:18,486 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 08:38:18,486 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:18,486 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:38:18,487 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:18,487 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:18,487 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:18,487 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:18,487 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:18,488 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:18,489 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126
[2020-09-25 08:38:18,490 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:18,491 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:18,492 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:18,493 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:38:18,493 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:18,493 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:38:18,493 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:18,494 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:18,494 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:18,494 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 08:38:18,494 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:18,494 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:18,496 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136
[2020-09-25 08:38:18,497 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:18,499 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:18,500 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:18,500 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:38:18,501 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:18,501 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:38:18,501 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:18,501 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:18,502 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:18,502 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 08:38:18,502 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:18,502 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:18,527 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 08:38:18,528 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2063092100]
[2020-09-25 08:38:18,528 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 08:38:18,528 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 08:38:18,529 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280576749]
[2020-09-25 08:38:18,531 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 08:38:18,531 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 08:38:18,531 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 08:38:18,531 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-25 08:38:18,532 INFO  L87              Difference]: Start difference. First operand 239 states and 259 transitions. Second operand 5 states.
[2020-09-25 08:38:19,249 WARN  L193               SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 08:38:20,168 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 08:38:20,168 INFO  L93              Difference]: Finished difference Result 364 states and 412 transitions.
[2020-09-25 08:38:20,169 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-25 08:38:20,169 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 149
[2020-09-25 08:38:20,170 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 08:38:20,174 INFO  L225             Difference]: With dead ends: 364
[2020-09-25 08:38:20,174 INFO  L226             Difference]: Without dead ends: 276
[2020-09-25 08:38:20,176 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-09-25 08:38:20,177 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 276 states.
[2020-09-25 08:38:20,216 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 229.
[2020-09-25 08:38:20,217 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 229 states.
[2020-09-25 08:38:20,218 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 246 transitions.
[2020-09-25 08:38:20,219 INFO  L78                 Accepts]: Start accepts. Automaton has 229 states and 246 transitions. Word has length 149
[2020-09-25 08:38:20,219 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 08:38:20,220 INFO  L479      AbstractCegarLoop]: Abstraction has 229 states and 246 transitions.
[2020-09-25 08:38:20,220 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 08:38:20,220 INFO  L276                IsEmpty]: Start isEmpty. Operand 229 states and 246 transitions.
[2020-09-25 08:38:20,223 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 159
[2020-09-25 08:38:20,223 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 08:38:20,223 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]
[2020-09-25 08:38:20,223 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 08:38:20,224 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:38:20,224 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:38:20,224 INFO  L82        PathProgramCache]: Analyzing trace with hash 444624650, now seen corresponding path program 1 times
[2020-09-25 08:38:20,224 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:38:20,225 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1941928838]
[2020-09-25 08:38:20,225 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:38:20,273 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:20,327 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:20,941 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:21,772 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:22,995 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:23,969 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:25,288 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:25,288 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 189
[2020-09-25 08:38:25,289 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-25 08:38:25,289 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5012
[2020-09-25 08:38:25,289 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:25,289 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:25,290 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 12
[2020-09-25 08:38:25,290 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 79
[2020-09-25 08:38:25,290 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 93
[2020-09-25 08:38:25,290 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:25,682 WARN  L193               SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 08:38:25,684 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 08:38:25,727 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:25,822 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:26,020 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:26,021 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-25 08:38:26,021 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:26,021 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 291
[2020-09-25 08:38:26,021 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:26,022 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:26,022 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:38:26,022 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:26,022 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-25 08:38:26,022 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:26,068 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-25 08:38:26,069 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:26,071 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:26,073 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:26,074 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:38:26,074 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:26,074 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:38:26,074 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:26,075 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:26,075 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:38:26,075 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:26,075 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 08:38:26,075 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:26,077 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-25 08:38:26,077 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:26,079 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:26,081 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:26,081 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:38:26,082 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:26,082 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:38:26,082 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:26,082 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:26,083 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:38:26,083 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:26,083 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 08:38:26,083 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:26,084 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-25 08:38:26,086 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:26,087 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:26,094 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:26,095 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:38:26,095 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:26,095 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 08:38:26,095 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:26,096 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:26,096 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:38:26,096 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:26,096 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 08:38:26,097 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:26,099 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-25 08:38:26,100 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:26,102 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:26,104 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:26,104 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:38:26,104 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:26,104 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:38:26,105 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:26,105 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:26,105 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:38:26,105 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:26,106 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 08:38:26,106 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:26,118 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-25 08:38:26,120 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:26,121 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:26,123 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:26,124 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 08:38:26,124 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:26,124 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:38:26,124 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:26,125 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:26,125 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:38:26,125 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:26,125 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-09-25 08:38:26,125 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:26,127 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135
[2020-09-25 08:38:26,128 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:26,129 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:26,135 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:26,136 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:38:26,136 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:26,136 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 08:38:26,136 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:26,137 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:26,137 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 08:38:26,137 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:26,137 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 08:38:26,137 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:26,159 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145
[2020-09-25 08:38:26,160 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:26,162 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:26,163 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:26,163 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:38:26,163 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:26,163 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:38:26,164 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:26,164 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:26,164 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:26,164 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 08:38:26,165 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:26,165 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:26,193 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 08:38:26,194 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1941928838]
[2020-09-25 08:38:26,195 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 08:38:26,195 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-09-25 08:38:26,195 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388751326]
[2020-09-25 08:38:26,197 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-25 08:38:26,197 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 08:38:26,197 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-25 08:38:26,199 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-09-25 08:38:26,199 INFO  L87              Difference]: Start difference. First operand 229 states and 246 transitions. Second operand 9 states.
[2020-09-25 08:38:26,792 WARN  L193               SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-25 08:38:27,956 WARN  L193               SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-25 08:38:28,336 WARN  L193               SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-25 08:38:28,781 WARN  L193               SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-25 08:38:29,115 WARN  L193               SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-25 08:38:29,474 WARN  L193               SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-25 08:38:29,778 WARN  L193               SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-25 08:38:30,110 WARN  L193               SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-25 08:38:30,617 WARN  L193               SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 08:38:31,392 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 08:38:31,393 INFO  L93              Difference]: Finished difference Result 508 states and 595 transitions.
[2020-09-25 08:38:31,394 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. 
[2020-09-25 08:38:31,394 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 158
[2020-09-25 08:38:31,395 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 08:38:31,398 INFO  L225             Difference]: With dead ends: 508
[2020-09-25 08:38:31,398 INFO  L226             Difference]: Without dead ends: 394
[2020-09-25 08:38:31,400 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380
[2020-09-25 08:38:31,401 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 394 states.
[2020-09-25 08:38:31,447 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 325.
[2020-09-25 08:38:31,448 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 325 states.
[2020-09-25 08:38:31,450 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 357 transitions.
[2020-09-25 08:38:31,450 INFO  L78                 Accepts]: Start accepts. Automaton has 325 states and 357 transitions. Word has length 158
[2020-09-25 08:38:31,450 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 08:38:31,451 INFO  L479      AbstractCegarLoop]: Abstraction has 325 states and 357 transitions.
[2020-09-25 08:38:31,451 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-25 08:38:31,451 INFO  L276                IsEmpty]: Start isEmpty. Operand 325 states and 357 transitions.
[2020-09-25 08:38:31,454 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 164
[2020-09-25 08:38:31,454 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 08:38:31,454 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]
[2020-09-25 08:38:31,454 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 08:38:31,454 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:38:31,455 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:38:31,455 INFO  L82        PathProgramCache]: Analyzing trace with hash 132604718, now seen corresponding path program 1 times
[2020-09-25 08:38:31,455 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:38:31,455 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1399541038]
[2020-09-25 08:38:31,456 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:38:31,500 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:31,549 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:32,101 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:32,560 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:33,049 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:36,535 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:36,535 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 196
[2020-09-25 08:38:36,535 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-25 08:38:36,535 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5033
[2020-09-25 08:38:36,535 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:36,536 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:36,536 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 08:38:36,536 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 83
[2020-09-25 08:38:36,536 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 79
[2020-09-25 08:38:36,536 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 08:38:36,901 WARN  L193               SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 08:38:36,902 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 08:38:36,934 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:36,971 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:37,184 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:37,185 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-25 08:38:37,185 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:37,185 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 249
[2020-09-25 08:38:37,186 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:37,186 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:37,186 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:38:37,187 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:37,187 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 79
[2020-09-25 08:38:37,187 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:37,244 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-25 08:38:37,245 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:37,246 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:37,249 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:37,249 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:38:37,249 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:37,250 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:38:37,250 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:37,250 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:37,251 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:38:37,251 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:37,251 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 08:38:37,252 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:37,254 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-25 08:38:37,256 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:37,257 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:37,260 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:37,260 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:38:37,260 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:37,261 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:38:37,261 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:37,261 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:37,262 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:38:37,262 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:37,262 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 08:38:37,263 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:37,264 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-25 08:38:37,265 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:37,267 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:37,274 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:37,274 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:38:37,275 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:37,275 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 08:38:37,275 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:37,276 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:37,276 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:38:37,276 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:37,276 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 08:38:37,276 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:37,279 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-25 08:38:37,280 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:37,281 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:37,284 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:37,284 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:38:37,285 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:37,285 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:38:37,285 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:37,286 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:37,286 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:38:37,286 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:37,287 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 08:38:37,287 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:37,299 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-25 08:38:37,300 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:37,302 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:37,304 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:37,305 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 08:38:37,305 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:37,305 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:38:37,306 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:37,306 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:37,306 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:38:37,307 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:37,307 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-09-25 08:38:37,307 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:37,321 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125
[2020-09-25 08:38:37,322 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:37,324 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:37,330 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:37,330 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 08:38:37,331 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:37,331 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 08:38:37,331 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:37,332 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:37,332 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:38:37,332 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:37,333 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 08:38:37,333 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:37,335 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-25 08:38:37,336 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:37,337 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:37,339 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:37,339 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:38:37,339 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:37,340 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:38:37,340 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:37,340 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:37,341 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:37,341 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 08:38:37,341 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:37,341 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:37,343 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-25 08:38:37,344 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:37,345 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:37,347 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:37,347 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:38:37,347 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:37,348 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:38:37,348 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:37,348 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:37,349 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:37,349 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 08:38:37,349 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:37,350 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:37,401 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 08:38:37,401 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1399541038]
[2020-09-25 08:38:37,401 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 08:38:37,402 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-25 08:38:37,402 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911250291]
[2020-09-25 08:38:37,402 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-25 08:38:37,403 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 08:38:37,403 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-25 08:38:37,403 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-25 08:38:37,403 INFO  L87              Difference]: Start difference. First operand 325 states and 357 transitions. Second operand 6 states.
[2020-09-25 08:38:38,099 WARN  L193               SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-25 08:38:39,938 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 08:38:39,938 INFO  L93              Difference]: Finished difference Result 874 states and 1033 transitions.
[2020-09-25 08:38:39,939 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2020-09-25 08:38:39,939 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 163
[2020-09-25 08:38:39,940 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 08:38:39,946 INFO  L225             Difference]: With dead ends: 874
[2020-09-25 08:38:39,946 INFO  L226             Difference]: Without dead ends: 664
[2020-09-25 08:38:39,948 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2020-09-25 08:38:39,949 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 664 states.
[2020-09-25 08:38:40,030 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 526.
[2020-09-25 08:38:40,030 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 526 states.
[2020-09-25 08:38:40,033 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 591 transitions.
[2020-09-25 08:38:40,034 INFO  L78                 Accepts]: Start accepts. Automaton has 526 states and 591 transitions. Word has length 163
[2020-09-25 08:38:40,034 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 08:38:40,034 INFO  L479      AbstractCegarLoop]: Abstraction has 526 states and 591 transitions.
[2020-09-25 08:38:40,035 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-25 08:38:40,035 INFO  L276                IsEmpty]: Start isEmpty. Operand 526 states and 591 transitions.
[2020-09-25 08:38:40,038 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 172
[2020-09-25 08:38:40,038 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 08:38:40,038 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]
[2020-09-25 08:38:40,039 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-25 08:38:40,039 INFO  L427      AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:38:40,039 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:38:40,039 INFO  L82        PathProgramCache]: Analyzing trace with hash -492594407, now seen corresponding path program 1 times
[2020-09-25 08:38:40,039 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:38:40,040 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [759091680]
[2020-09-25 08:38:40,040 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:38:40,084 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:40,130 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:40,258 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:40,690 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:42,456 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:45,091 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:45,091 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 208
[2020-09-25 08:38:45,091 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-25 08:38:45,092 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5005
[2020-09-25 08:38:45,092 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:45,092 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:45,092 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 08:38:45,093 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 124
[2020-09-25 08:38:45,093 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 80
[2020-09-25 08:38:45,093 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:45,410 WARN  L193               SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 08:38:45,411 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 08:38:45,418 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:45,427 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:45,511 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:45,511 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-25 08:38:45,512 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:45,512 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 92
[2020-09-25 08:38:45,512 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:45,512 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:45,513 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:45,513 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:45,513 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:45,513 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:45,543 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-25 08:38:45,543 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:45,544 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:45,545 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:45,546 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:38:45,546 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:45,546 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 08:38:45,546 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:45,546 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:45,547 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:45,547 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:45,547 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:45,547 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:45,548 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-25 08:38:45,549 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:45,550 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:45,551 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:45,551 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:38:45,552 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:45,552 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:38:45,552 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:45,552 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:45,552 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:45,553 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:45,553 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:45,553 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 08:38:45,554 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-25 08:38:45,554 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:45,555 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:45,558 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:45,558 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:38:45,559 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:45,559 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:38:45,559 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:45,559 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:45,559 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:45,560 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:45,560 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:45,560 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 08:38:45,561 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-25 08:38:45,562 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:45,563 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:45,564 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:45,564 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:38:45,564 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:45,565 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 08:38:45,565 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:45,565 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:45,565 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:45,566 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:45,566 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:45,566 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:45,576 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-25 08:38:45,577 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:45,578 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:45,581 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:45,581 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 08:38:45,581 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:45,581 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:38:45,581 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:45,582 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:45,582 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:38:45,582 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:45,582 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-25 08:38:45,583 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:45,592 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125
[2020-09-25 08:38:45,593 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:45,595 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:45,600 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:45,600 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 08:38:45,600 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:45,601 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 08:38:45,601 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:45,601 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:45,601 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:38:45,601 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:45,602 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 08:38:45,602 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 08:38:45,611 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137
[2020-09-25 08:38:45,613 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:45,614 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:45,616 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:45,616 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-25 08:38:45,616 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:45,617 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:38:45,617 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:45,617 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:45,617 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:38:45,617 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:45,618 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-09-25 08:38:45,618 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 08:38:45,619 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 08:38:45,620 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:45,621 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:45,622 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:45,622 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:38:45,622 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:45,622 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 08:38:45,622 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:45,623 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:45,623 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:38:45,623 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:45,623 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:38:45,623 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 08:38:45,624 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148
[2020-09-25 08:38:45,625 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:45,626 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:45,629 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:45,629 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:38:45,629 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:45,630 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:38:45,630 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:45,630 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:45,630 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:38:45,630 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:45,631 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 08:38:45,631 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 08:38:45,633 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158
[2020-09-25 08:38:45,634 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:45,635 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:45,637 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:38:45,637 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:38:45,637 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:38:45,638 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:38:45,638 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:38:45,638 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:38:45,638 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:38:45,638 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:38:45,639 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 08:38:45,639 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:38:45,673 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 08:38:45,674 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [759091680]
[2020-09-25 08:38:45,674 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 08:38:45,674 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-09-25 08:38:45,675 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877197337]
[2020-09-25 08:38:45,675 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-09-25 08:38:45,675 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 08:38:45,677 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-09-25 08:38:45,677 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2020-09-25 08:38:45,678 INFO  L87              Difference]: Start difference. First operand 526 states and 591 transitions. Second operand 7 states.
[2020-09-25 08:38:46,252 WARN  L193               SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-25 08:38:48,703 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 08:38:48,704 INFO  L93              Difference]: Finished difference Result 1463 states and 1901 transitions.
[2020-09-25 08:38:48,704 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. 
[2020-09-25 08:38:48,704 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 171
[2020-09-25 08:38:48,705 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 08:38:48,715 INFO  L225             Difference]: With dead ends: 1463
[2020-09-25 08:38:48,715 INFO  L226             Difference]: Without dead ends: 1460
[2020-09-25 08:38:48,717 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342
[2020-09-25 08:38:48,719 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1460 states.
[2020-09-25 08:38:48,851 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1460 to 755.
[2020-09-25 08:38:48,851 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 755 states.
[2020-09-25 08:38:48,855 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 858 transitions.
[2020-09-25 08:38:48,856 INFO  L78                 Accepts]: Start accepts. Automaton has 755 states and 858 transitions. Word has length 171
[2020-09-25 08:38:48,856 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 08:38:48,856 INFO  L479      AbstractCegarLoop]: Abstraction has 755 states and 858 transitions.
[2020-09-25 08:38:48,856 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-09-25 08:38:48,857 INFO  L276                IsEmpty]: Start isEmpty. Operand 755 states and 858 transitions.
[2020-09-25 08:38:48,861 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 219
[2020-09-25 08:38:48,861 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 08:38:48,862 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 08:38:48,862 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-09-25 08:38:48,862 INFO  L427      AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:38:48,863 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:38:48,863 INFO  L82        PathProgramCache]: Analyzing trace with hash -269712063, now seen corresponding path program 1 times
[2020-09-25 08:38:48,863 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:38:48,863 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1180697025]
[2020-09-25 08:38:48,863 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:38:48,909 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:38:48,956 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:49,085 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:38:49,219 FATAL L256   erpolLogProxyWrapper]: Now shrinking...