/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=0.8 --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_product50.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 07:30:36,940 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 07:30:36,944 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 07:30:36,990 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 07:30:36,990 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 07:30:36,998 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 07:30:37,001 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 07:30:37,005 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 07:30:37,008 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 07:30:37,011 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 07:30:37,012 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 07:30:37,013 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 07:30:37,013 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 07:30:37,016 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 07:30:37,019 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 07:30:37,021 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 07:30:37,022 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 07:30:37,023 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 07:30:37,025 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 07:30:37,033 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 07:30:37,036 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 07:30:37,037 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 07:30:37,038 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 07:30:37,039 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 07:30:37,051 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 07:30:37,051 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 07:30:37,051 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 07:30:37,054 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 07:30:37,055 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 07:30:37,057 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 07:30:37,057 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 07:30:37,058 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 07:30:37,060 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 07:30:37,061 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 07:30:37,063 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 07:30:37,063 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 07:30:37,064 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 07:30:37,064 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 07:30:37,064 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 07:30:37,065 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 07:30:37,067 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 07:30:37,067 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 07:30:37,112 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 07:30:37,112 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 07:30:37,115 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 07:30:37,116 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 07:30:37,116 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 07:30:37,116 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 07:30:37,117 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 07:30:37,117 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 07:30:37,117 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 07:30:37,117 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 07:30:37,118 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 07:30:37,119 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 07:30:37,119 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 07:30:37,119 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 07:30:37,119 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 07:30:37,120 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 07:30:37,120 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 07:30:37,120 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 07:30:37,120 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 07:30:37,122 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 07:30:37,122 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 07:30:37,123 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 07:30:37,124 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 07:30:37,125 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 07:30:37,126 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 07:30:37,126 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 07:30:37,126 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 07:30:37,126 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 07:30:37,127 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 07:30:37,127 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=0.8;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=0.8;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=0.8;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=0.8;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=0.8;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=0.8;log-additional-information=true;
[2020-09-25 07:30:37,558 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 07:30:37,585 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 07:30:37,590 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 07:30:37,592 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 07:30:37,593 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 07:30:37,594 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product50.cil.c
[2020-09-25 07:30:37,690 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c0bd364c5/da080794a1f64f90b009e04328dcb976/FLAG5b1e3d60f
[2020-09-25 07:30:38,294 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 07:30:38,295 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product50.cil.c
[2020-09-25 07:30:38,310 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c0bd364c5/da080794a1f64f90b009e04328dcb976/FLAG5b1e3d60f
[2020-09-25 07:30:38,580 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c0bd364c5/da080794a1f64f90b009e04328dcb976
[2020-09-25 07:30:38,593 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 07:30:38,598 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 07:30:38,599 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 07:30:38,599 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 07:30:38,603 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 07:30:38,605 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:30:38" (1/1) ...
[2020-09-25 07:30:38,609 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27030054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:38, skipping insertion in model container
[2020-09-25 07:30:38,609 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:30:38" (1/1) ...
[2020-09-25 07:30:38,618 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 07:30:38,670 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 07:30:39,233 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 07:30:39,251 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 07:30:39,332 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 07:30:39,373 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 07:30:39,374 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:39 WrapperNode
[2020-09-25 07:30:39,374 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 07:30:39,375 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 07:30:39,375 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 07:30:39,375 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 07:30:39,394 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:39" (1/1) ...
[2020-09-25 07:30:39,395 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:39" (1/1) ...
[2020-09-25 07:30:39,417 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:39" (1/1) ...
[2020-09-25 07:30:39,418 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:39" (1/1) ...
[2020-09-25 07:30:39,464 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:39" (1/1) ...
[2020-09-25 07:30:39,475 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:39" (1/1) ...
[2020-09-25 07:30:39,481 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:39" (1/1) ...
[2020-09-25 07:30:39,489 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 07:30:39,490 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 07:30:39,490 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 07:30:39,490 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 07:30:39,491 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:39" (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 07:30:39,573 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 07:30:39,573 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 07:30:39,573 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 07:30:39,574 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 07:30:39,574 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 07:30:39,574 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 07:30:39,574 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 07:30:39,574 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 07:30:39,575 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 07:30:39,575 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 07:30:39,575 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 07:30:39,575 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 07:30:39,575 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1
[2020-09-25 07:30:39,576 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2
[2020-09-25 07:30:39,576 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 07:30:39,576 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 07:30:39,576 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 07:30:39,577 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 07:30:39,577 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 07:30:39,579 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 07:30:39,579 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-25 07:30:39,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-25 07:30:39,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 07:30:39,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 07:30:39,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-25 07:30:39,581 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 07:30:39,581 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 07:30:39,581 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 07:30:39,582 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 07:30:39,582 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 07:30:39,582 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 07:30:39,582 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-25 07:30:39,582 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-25 07:30:39,583 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-25 07:30:39,583 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 07:30:39,583 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 07:30:39,583 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 07:30:39,584 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 07:30:39,584 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 07:30:39,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 07:30:39,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 07:30:39,586 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 07:30:39,586 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 07:30:39,586 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 07:30:39,586 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 07:30:39,586 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 07:30:39,586 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 07:30:39,587 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 07:30:39,587 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 07:30:39,587 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 07:30:39,587 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 07:30:39,588 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 07:30:39,588 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 07:30:39,588 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 07:30:39,588 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 07:30:39,589 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 07:30:39,589 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1
[2020-09-25 07:30:39,589 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 07:30:39,589 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 07:30:39,589 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 07:30:39,589 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 07:30:39,589 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 07:30:39,590 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 07:30:39,590 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2
[2020-09-25 07:30:39,590 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 07:30:39,590 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 07:30:39,591 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 07:30:39,591 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-25 07:30:39,591 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-25 07:30:39,592 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 07:30:39,592 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 07:30:39,593 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 07:30:39,594 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-25 07:30:39,594 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 07:30:39,594 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 07:30:39,594 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-25 07:30:39,594 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-25 07:30:39,594 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-25 07:30:39,595 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 07:30:39,595 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 07:30:39,595 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 07:30:39,595 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 07:30:39,596 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 07:30:39,596 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 07:30:39,596 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 07:30:39,596 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 07:30:39,596 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 07:30:39,596 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 07:30:39,596 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 07:30:39,597 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 07:30:39,597 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 07:30:39,597 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 07:30:39,597 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 07:30:39,597 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 07:30:39,597 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 07:30:39,597 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 07:30:39,598 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 07:30:39,598 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 07:30:40,899 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 07:30:40,899 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 07:30:40,915 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:30:40 BoogieIcfgContainer
[2020-09-25 07:30:40,916 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 07:30:40,918 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 07:30:40,918 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 07:30:40,922 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 07:30:40,923 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:30:38" (1/3) ...
[2020-09-25 07:30:40,924 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c916c93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:30:40, skipping insertion in model container
[2020-09-25 07:30:40,924 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:39" (2/3) ...
[2020-09-25 07:30:40,925 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c916c93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:30:40, skipping insertion in model container
[2020-09-25 07:30:40,925 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:30:40" (3/3) ...
[2020-09-25 07:30:40,928 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec2_product50.cil.c
[2020-09-25 07:30:40,943 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 07:30:40,956 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 07:30:40,979 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 07:30:41,025 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 07:30:41,026 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 07:30:41,026 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 07:30:41,026 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 07:30:41,027 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 07:30:41,027 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 07:30:41,028 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 07:30:41,028 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 07:30:41,076 INFO  L276                IsEmpty]: Start isEmpty. Operand 331 states.
[2020-09-25 07:30:41,110 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 149
[2020-09-25 07:30:41,110 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 07:30:41,112 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 07:30:41,112 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:30:41,121 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:30:41,122 INFO  L82        PathProgramCache]: Analyzing trace with hash -207772039, now seen corresponding path program 1 times
[2020-09-25 07:30:41,133 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:30:41,134 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1387565261]
[2020-09-25 07:30:41,134 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:30:41,455 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:41,635 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:41,850 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:43,263 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:44,253 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:45,474 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:46,490 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:46,490 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 181
[2020-09-25 07:30:46,490 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-25 07:30:46,491 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5025
[2020-09-25 07:30:46,495 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:46,503 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:46,503 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:46,504 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 136
[2020-09-25 07:30:46,504 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:46,504 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 13
[2020-09-25 07:30:47,026 WARN  L193               SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 07:30:47,029 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 07:30:47,040 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:47,050 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:47,159 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:47,160 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-25 07:30:47,160 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:47,160 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 117
[2020-09-25 07:30:47,160 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:47,161 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:47,161 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:47,161 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:30:47,162 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:47,162 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:47,222 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-25 07:30:47,223 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:47,224 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:47,226 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:47,226 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:30:47,227 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:47,227 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:30:47,227 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:47,227 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:47,228 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:47,228 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:30:47,228 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:47,228 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:47,230 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-25 07:30:47,231 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:47,232 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:47,234 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:47,234 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:30:47,234 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:47,235 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:30:47,235 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:47,235 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:47,235 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:47,235 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:30:47,236 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:47,236 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:47,237 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-25 07:30:47,238 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:47,239 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:47,242 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:47,242 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:30:47,242 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:47,242 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 07:30:47,243 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:47,243 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:47,243 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:47,243 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:30:47,243 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:47,244 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:47,246 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-25 07:30:47,247 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:47,248 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:47,249 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:47,250 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:30:47,250 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:47,250 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:30:47,250 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:47,251 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:47,251 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:47,251 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:30:47,251 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:47,251 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:47,261 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-25 07:30:47,262 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:47,263 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:47,265 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:47,266 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 07:30:47,266 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:47,266 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:30:47,266 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:47,267 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:47,267 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:47,267 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:30:47,267 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:47,268 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:47,269 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125
[2020-09-25 07:30:47,270 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:47,272 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:47,274 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:47,274 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:30:47,274 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:47,275 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 07:30:47,275 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:47,275 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:47,275 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:47,276 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 07:30:47,276 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:47,276 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:47,279 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135
[2020-09-25 07:30:47,280 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:47,281 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:47,283 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:47,283 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:30:47,283 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:47,284 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:30:47,284 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:47,284 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:47,284 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:47,285 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 07:30:47,285 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:47,285 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:47,312 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 07:30:47,313 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1387565261]
[2020-09-25 07:30:47,315 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 07:30:47,316 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-25 07:30:47,317 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067406903]
[2020-09-25 07:30:47,323 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-25 07:30:47,324 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 07:30:47,341 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-25 07:30:47,343 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2020-09-25 07:30:47,345 INFO  L87              Difference]: Start difference. First operand 331 states. Second operand 4 states.
[2020-09-25 07:30:48,824 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 07:30:48,824 INFO  L93              Difference]: Finished difference Result 512 states and 603 transitions.
[2020-09-25 07:30:48,825 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2020-09-25 07:30:48,827 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 148
[2020-09-25 07:30:48,828 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 07:30:48,848 INFO  L225             Difference]: With dead ends: 512
[2020-09-25 07:30:48,848 INFO  L226             Difference]: Without dead ends: 323
[2020-09-25 07:30:48,854 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2020-09-25 07:30:48,878 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 323 states.
[2020-09-25 07:30:48,971 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 274.
[2020-09-25 07:30:48,976 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 274 states.
[2020-09-25 07:30:48,980 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 297 transitions.
[2020-09-25 07:30:48,983 INFO  L78                 Accepts]: Start accepts. Automaton has 274 states and 297 transitions. Word has length 148
[2020-09-25 07:30:48,984 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 07:30:48,985 INFO  L479      AbstractCegarLoop]: Abstraction has 274 states and 297 transitions.
[2020-09-25 07:30:48,985 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-25 07:30:48,985 INFO  L276                IsEmpty]: Start isEmpty. Operand 274 states and 297 transitions.
[2020-09-25 07:30:48,994 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 150
[2020-09-25 07:30:48,994 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 07:30:48,994 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 07:30:48,996 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 07:30:48,996 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:30:48,997 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:30:48,997 INFO  L82        PathProgramCache]: Analyzing trace with hash -617336203, now seen corresponding path program 1 times
[2020-09-25 07:30:48,997 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:30:48,997 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1059850306]
[2020-09-25 07:30:48,998 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:30:49,062 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:49,157 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:49,256 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:50,673 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:51,522 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:52,357 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:53,732 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:54,073 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:54,073 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 182
[2020-09-25 07:30:54,073 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 6
[2020-09-25 07:30:54,074 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5006
[2020-09-25 07:30:54,074 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:54,075 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:54,075 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 07:30:54,075 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 135
[2020-09-25 07:30:54,076 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 3
[2020-09-25 07:30:54,076 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:54,509 WARN  L193               SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 07:30:54,511 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 07:30:54,522 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:54,535 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:54,641 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:54,641 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-25 07:30:54,641 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:54,642 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 115
[2020-09-25 07:30:54,642 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:54,642 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:54,642 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:54,643 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:30:54,643 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:54,643 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:54,687 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-25 07:30:54,687 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:54,689 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:54,690 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:54,691 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:30:54,691 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:54,691 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:30:54,691 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:54,692 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:54,692 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:54,692 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:30:54,692 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:54,693 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:54,694 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-25 07:30:54,696 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:54,699 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:54,701 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:54,701 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:30:54,702 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:54,702 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 07:30:54,702 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:54,702 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:54,702 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:54,703 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:30:54,703 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:54,703 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:54,704 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-25 07:30:54,705 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:54,706 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:54,710 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:54,710 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:30:54,711 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:54,711 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 07:30:54,711 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:54,711 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:54,711 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:54,712 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:30:54,712 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:54,712 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:54,714 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-25 07:30:54,714 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:54,715 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:54,716 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:54,717 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:30:54,717 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:54,717 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 07:30:54,717 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:54,717 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:54,718 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:54,718 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:30:54,718 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:54,718 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:54,732 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-25 07:30:54,733 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:54,734 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:54,736 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:54,736 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 07:30:54,736 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:54,737 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:30:54,737 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:54,737 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:54,737 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:54,738 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:30:54,740 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:54,740 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-25 07:30:54,744 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126
[2020-09-25 07:30:54,744 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:54,746 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:54,747 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:54,748 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:30:54,748 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:54,748 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:30:54,748 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:54,748 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:54,749 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:54,749 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 07:30:54,749 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:54,749 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:54,751 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136
[2020-09-25 07:30:54,752 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:54,753 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:54,754 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:30:54,755 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:30:54,755 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:30:54,755 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:30:54,755 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:30:54,756 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:30:54,756 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:30:54,756 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 07:30:54,756 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:30:54,756 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:30:54,792 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 07:30:54,793 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1059850306]
[2020-09-25 07:30:54,793 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 07:30:54,793 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 07:30:54,793 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741278227]
[2020-09-25 07:30:54,797 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 07:30:54,798 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 07:30:54,798 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 07:30:54,798 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-25 07:30:54,799 INFO  L87              Difference]: Start difference. First operand 274 states and 297 transitions. Second operand 5 states.
[2020-09-25 07:30:55,528 WARN  L193               SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 07:30:56,547 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 07:30:56,548 INFO  L93              Difference]: Finished difference Result 437 states and 494 transitions.
[2020-09-25 07:30:56,548 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-25 07:30:56,548 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 149
[2020-09-25 07:30:56,549 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 07:30:56,552 INFO  L225             Difference]: With dead ends: 437
[2020-09-25 07:30:56,553 INFO  L226             Difference]: Without dead ends: 312
[2020-09-25 07:30:56,554 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-09-25 07:30:56,556 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 312 states.
[2020-09-25 07:30:56,603 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 264.
[2020-09-25 07:30:56,603 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 264 states.
[2020-09-25 07:30:56,605 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 284 transitions.
[2020-09-25 07:30:56,605 INFO  L78                 Accepts]: Start accepts. Automaton has 264 states and 284 transitions. Word has length 149
[2020-09-25 07:30:56,606 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 07:30:56,606 INFO  L479      AbstractCegarLoop]: Abstraction has 264 states and 284 transitions.
[2020-09-25 07:30:56,606 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 07:30:56,606 INFO  L276                IsEmpty]: Start isEmpty. Operand 264 states and 284 transitions.
[2020-09-25 07:30:56,608 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 163
[2020-09-25 07:30:56,608 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 07:30:56,608 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]
[2020-09-25 07:30:56,608 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 07:30:56,609 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:30:56,609 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:30:56,609 INFO  L82        PathProgramCache]: Analyzing trace with hash 335251812, now seen corresponding path program 1 times
[2020-09-25 07:30:56,609 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:30:56,609 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1750439262]
[2020-09-25 07:30:56,610 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:30:56,668 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:30:56,732 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:57,046 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:57,809 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:58,064 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:30:59,331 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:01,696 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:01,697 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 195
[2020-09-25 07:31:01,697 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-25 07:31:01,697 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5025
[2020-09-25 07:31:01,697 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:01,698 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:01,698 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 07:31:01,698 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 153
[2020-09-25 07:31:01,698 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-25 07:31:01,698 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:31:02,039 WARN  L193               SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 07:31:02,040 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 07:31:02,049 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:02,058 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:02,154 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:02,155 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-25 07:31:02,155 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:02,156 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 105
[2020-09-25 07:31:02,156 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:02,157 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:02,157 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:31:02,158 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:31:02,158 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:31:02,158 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 07:31:02,239 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-25 07:31:02,240 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:02,241 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:02,243 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:02,243 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:31:02,244 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:02,244 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:31:02,244 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:02,245 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:02,245 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:31:02,245 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:31:02,246 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:31:02,246 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:31:02,247 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-25 07:31:02,248 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:02,249 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:02,251 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:02,251 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:31:02,251 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:02,252 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:31:02,252 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:02,252 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:02,253 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:31:02,253 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:31:02,253 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:31:02,254 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:31:02,255 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-25 07:31:02,256 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:02,257 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:02,261 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:02,261 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:31:02,261 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:02,262 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 07:31:02,262 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:02,263 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:02,263 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:31:02,263 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:31:02,264 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:31:02,264 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:31:02,266 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-25 07:31:02,266 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:02,267 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:02,269 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:02,269 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:31:02,270 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:02,270 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:31:02,270 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:02,271 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:02,271 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:31:02,271 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:31:02,272 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:31:02,272 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:31:02,284 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-25 07:31:02,285 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:02,286 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:02,288 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:02,288 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 07:31:02,289 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:02,289 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:31:02,289 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:02,289 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:02,290 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:31:02,290 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:31:02,290 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:31:02,291 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:31:02,301 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129
[2020-09-25 07:31:02,303 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:02,304 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:02,307 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:02,307 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 07:31:02,308 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:02,308 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 07:31:02,308 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:02,309 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:02,309 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 07:31:02,309 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:31:02,310 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-25 07:31:02,310 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:31:02,313 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139
[2020-09-25 07:31:02,314 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:02,315 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:02,317 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:02,318 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:31:02,318 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:02,318 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 07:31:02,318 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:02,319 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:02,319 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:31:02,319 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 07:31:02,319 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:31:02,319 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:31:02,321 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149
[2020-09-25 07:31:02,321 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:02,323 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:02,324 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:02,324 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:31:02,324 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:02,325 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:31:02,325 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:02,325 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:02,325 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:31:02,325 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 07:31:02,326 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:31:02,326 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:31:02,378 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 07:31:02,379 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1750439262]
[2020-09-25 07:31:02,379 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 07:31:02,379 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-25 07:31:02,380 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104904241]
[2020-09-25 07:31:02,381 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-25 07:31:02,381 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 07:31:02,382 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-25 07:31:02,384 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-25 07:31:02,384 INFO  L87              Difference]: Start difference. First operand 264 states and 284 transitions. Second operand 6 states.
[2020-09-25 07:31:03,008 WARN  L193               SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-25 07:31:04,020 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 07:31:04,021 INFO  L93              Difference]: Finished difference Result 484 states and 559 transitions.
[2020-09-25 07:31:04,021 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2020-09-25 07:31:04,021 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 162
[2020-09-25 07:31:04,023 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 07:31:04,027 INFO  L225             Difference]: With dead ends: 484
[2020-09-25 07:31:04,027 INFO  L226             Difference]: Without dead ends: 335
[2020-09-25 07:31:04,029 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2020-09-25 07:31:04,030 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 335 states.
[2020-09-25 07:31:04,066 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 264.
[2020-09-25 07:31:04,066 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 264 states.
[2020-09-25 07:31:04,068 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 283 transitions.
[2020-09-25 07:31:04,068 INFO  L78                 Accepts]: Start accepts. Automaton has 264 states and 283 transitions. Word has length 162
[2020-09-25 07:31:04,069 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 07:31:04,069 INFO  L479      AbstractCegarLoop]: Abstraction has 264 states and 283 transitions.
[2020-09-25 07:31:04,069 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-25 07:31:04,069 INFO  L276                IsEmpty]: Start isEmpty. Operand 264 states and 283 transitions.
[2020-09-25 07:31:04,071 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 176
[2020-09-25 07:31:04,071 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 07:31:04,071 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 07:31:04,072 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 07:31:04,072 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:31:04,072 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:31:04,072 INFO  L82        PathProgramCache]: Analyzing trace with hash 1327937855, now seen corresponding path program 1 times
[2020-09-25 07:31:04,073 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:31:04,073 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [417473602]
[2020-09-25 07:31:04,073 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:31:04,121 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:04,207 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:04,342 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:04,498 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:06,089 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:06,820 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:07,283 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:07,424 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:07,579 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:09,157 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:09,157 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 214
[2020-09-25 07:31:09,157 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 8
[2020-09-25 07:31:09,157 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5033
[2020-09-25 07:31:09,158 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:09,158 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:09,158 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-25 07:31:09,158 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 159
[2020-09-25 07:31:09,159 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 12
[2020-09-25 07:31:09,159 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:31:09,500 WARN  L193               SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 07:31:09,502 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 07:31:09,512 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:09,524 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:09,632 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:09,632 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-25 07:31:09,633 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:09,633 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 118
[2020-09-25 07:31:09,633 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:09,634 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:09,634 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:31:09,634 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:31:09,635 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:31:09,635 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:31:09,678 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-25 07:31:09,678 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:09,680 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:09,681 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:09,681 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:31:09,682 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:09,682 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:31:09,682 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:09,683 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:09,683 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:31:09,683 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:31:09,684 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:31:09,684 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:31:09,685 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-25 07:31:09,686 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:09,687 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:09,688 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:09,689 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:31:09,689 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:09,689 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 07:31:09,689 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:09,690 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:09,690 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:31:09,691 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:31:09,691 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:31:09,691 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:31:09,692 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-25 07:31:09,693 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:09,694 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:09,698 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:09,698 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:31:09,698 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:09,698 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 07:31:09,699 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:09,699 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:09,699 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:31:09,699 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:31:09,699 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:31:09,699 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:31:09,701 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-25 07:31:09,701 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:09,703 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:09,704 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:09,705 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:31:09,705 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:09,705 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:31:09,706 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:09,706 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:09,706 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:31:09,707 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:31:09,707 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:31:09,707 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:31:09,719 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-25 07:31:09,720 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:09,721 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:09,723 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:09,723 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 07:31:09,724 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:09,724 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:31:09,724 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:09,725 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:09,725 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:31:09,725 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:31:09,726 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:31:09,726 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:31:09,740 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129
[2020-09-25 07:31:09,740 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:09,742 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:09,745 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:09,746 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 07:31:09,746 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:09,746 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 07:31:09,747 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:09,747 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:09,747 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:31:09,748 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:31:09,748 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:31:09,748 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:31:09,765 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136
[2020-09-25 07:31:09,767 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:09,770 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:09,779 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:09,785 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:09,785 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 22
[2020-09-25 07:31:09,786 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 07:31:09,786 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 16
[2020-09-25 07:31:09,786 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:09,787 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:09,787 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-25 07:31:09,787 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-09-25 07:31:09,788 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 21
[2020-09-25 07:31:09,788 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:31:09,806 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 07:31:09,809 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:09,812 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:09,820 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:09,820 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-25 07:31:09,821 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:09,821 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 07:31:09,821 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:09,822 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:09,822 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 07:31:09,823 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-09-25 07:31:09,823 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 14
[2020-09-25 07:31:09,823 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:31:09,830 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 07:31:09,831 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:09,832 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:09,836 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:09,836 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:31:09,836 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:09,837 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 07:31:09,837 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:09,838 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:09,838 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 07:31:09,838 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:31:09,839 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 07:31:09,839 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:31:09,841 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152
[2020-09-25 07:31:09,842 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:09,844 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:09,845 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:09,845 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:31:09,846 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:09,846 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:31:09,846 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:09,847 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:09,847 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:31:09,847 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 07:31:09,848 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:31:09,848 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:31:09,850 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162
[2020-09-25 07:31:09,851 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:09,852 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:09,854 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:09,854 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:31:09,854 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:09,855 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:31:09,855 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:09,855 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:09,856 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:31:09,856 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 07:31:09,856 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:31:09,857 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:31:09,915 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 07:31:09,916 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [417473602]
[2020-09-25 07:31:09,916 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 07:31:09,916 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-25 07:31:09,917 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769167180]
[2020-09-25 07:31:09,919 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 07:31:09,919 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 07:31:09,919 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 07:31:09,920 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2020-09-25 07:31:09,921 INFO  L87              Difference]: Start difference. First operand 264 states and 283 transitions. Second operand 8 states.
[2020-09-25 07:31:10,720 WARN  L193               SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-25 07:31:12,446 WARN  L193               SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 07:31:13,633 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 07:31:13,633 INFO  L93              Difference]: Finished difference Result 672 states and 802 transitions.
[2020-09-25 07:31:13,634 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. 
[2020-09-25 07:31:13,634 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 175
[2020-09-25 07:31:13,635 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 07:31:13,640 INFO  L225             Difference]: With dead ends: 672
[2020-09-25 07:31:13,640 INFO  L226             Difference]: Without dead ends: 523
[2020-09-25 07:31:13,642 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506
[2020-09-25 07:31:13,643 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 523 states.
[2020-09-25 07:31:13,695 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 382.
[2020-09-25 07:31:13,695 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 382 states.
[2020-09-25 07:31:13,699 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 412 transitions.
[2020-09-25 07:31:13,699 INFO  L78                 Accepts]: Start accepts. Automaton has 382 states and 412 transitions. Word has length 175
[2020-09-25 07:31:13,700 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 07:31:13,700 INFO  L479      AbstractCegarLoop]: Abstraction has 382 states and 412 transitions.
[2020-09-25 07:31:13,700 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 07:31:13,700 INFO  L276                IsEmpty]: Start isEmpty. Operand 382 states and 412 transitions.
[2020-09-25 07:31:13,706 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 200
[2020-09-25 07:31:13,706 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 07:31:13,707 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:31:13,707 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-25 07:31:13,707 INFO  L427      AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:31:13,707 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:31:13,707 INFO  L82        PathProgramCache]: Analyzing trace with hash 552835031, now seen corresponding path program 1 times
[2020-09-25 07:31:13,708 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:31:13,708 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1077894586]
[2020-09-25 07:31:13,708 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:31:13,753 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:13,805 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:14,530 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:14,807 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:14,929 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:16,969 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:18,784 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:18,784 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 242
[2020-09-25 07:31:18,784 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-25 07:31:18,784 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5028
[2020-09-25 07:31:18,785 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:18,785 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:18,785 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 07:31:18,785 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 124
[2020-09-25 07:31:18,785 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 114
[2020-09-25 07:31:18,785 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:31:19,153 WARN  L193               SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 07:31:19,154 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 07:31:19,162 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:19,172 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:19,275 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:19,275 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-25 07:31:19,275 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:19,276 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 111
[2020-09-25 07:31:19,276 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:19,276 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:19,276 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:31:19,276 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:31:19,277 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:31:19,277 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:31:19,317 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-25 07:31:19,317 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:19,319 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:19,321 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:19,321 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:31:19,321 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:19,321 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:31:19,322 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:19,322 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:19,322 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:31:19,322 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:31:19,322 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:31:19,323 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:31:19,324 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-25 07:31:19,324 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:19,326 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:19,327 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:19,328 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:31:19,328 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:19,328 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:31:19,328 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:19,328 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:19,329 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:31:19,329 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:31:19,329 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:31:19,329 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:31:19,330 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-25 07:31:19,331 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:19,332 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:19,335 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:19,335 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:31:19,335 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:19,336 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 07:31:19,336 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:19,336 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:19,336 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:31:19,336 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:31:19,337 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:31:19,337 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:31:19,338 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-25 07:31:19,339 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:19,341 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:19,346 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:19,346 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:31:19,346 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:19,347 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 07:31:19,347 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:19,347 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:19,347 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:31:19,348 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:31:19,348 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:31:19,348 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:31:19,363 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-25 07:31:19,364 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:19,366 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:19,368 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:19,368 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 07:31:19,368 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:19,368 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 07:31:19,369 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:19,369 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:19,369 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 07:31:19,369 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:31:19,369 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-25 07:31:19,370 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:31:19,379 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129
[2020-09-25 07:31:19,383 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:19,385 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:19,390 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:19,390 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 07:31:19,390 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:19,391 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 07:31:19,391 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:19,391 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:19,391 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 07:31:19,392 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:31:19,392 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-09-25 07:31:19,392 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:31:19,407 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136
[2020-09-25 07:31:19,410 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:19,417 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:19,438 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:19,438 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 50
[2020-09-25 07:31:19,438 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:19,438 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 26
[2020-09-25 07:31:19,439 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:19,439 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:19,439 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 07:31:19,439 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:31:19,440 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 46
[2020-09-25 07:31:19,440 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:31:19,444 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 07:31:19,445 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:19,448 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:19,460 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:19,460 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 43
[2020-09-25 07:31:19,460 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:19,460 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 13
[2020-09-25 07:31:19,461 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:19,461 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:19,461 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:31:19,461 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:31:19,461 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:31:19,462 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:31:19,465 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 07:31:19,466 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:19,468 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:19,470 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:19,471 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 27
[2020-09-25 07:31:19,471 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:19,471 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 07:31:19,471 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:19,472 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:19,472 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:31:19,472 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:31:19,472 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:31:19,473 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:31:19,475 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:31:19,477 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:19,478 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:19,479 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:19,480 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 07:31:19,480 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:19,480 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:31:19,480 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:19,481 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:19,481 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:31:19,481 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:31:19,481 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:31:19,482 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:31:19,484 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26
[2020-09-25 07:31:19,484 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:19,485 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:19,486 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:19,487 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:31:19,487 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:19,487 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 07:31:19,487 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:19,488 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:19,488 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:31:19,488 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:31:19,488 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:31:19,489 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:31:19,492 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176
[2020-09-25 07:31:19,493 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:19,494 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:19,496 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:19,497 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:31:19,497 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:19,497 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 07:31:19,497 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:19,498 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:19,498 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 07:31:19,498 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:31:19,498 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 07:31:19,498 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:31:19,500 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186
[2020-09-25 07:31:19,501 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:19,502 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:19,504 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:31:19,505 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:31:19,505 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:31:19,505 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:31:19,505 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:31:19,505 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:31:19,506 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 07:31:19,506 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:31:19,506 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 07:31:19,506 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:31:19,569 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 07:31:19,570 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1077894586]
[2020-09-25 07:31:19,570 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 07:31:19,571 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-09-25 07:31:19,571 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755665107]
[2020-09-25 07:31:19,572 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-09-25 07:31:19,572 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 07:31:19,572 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-09-25 07:31:19,573 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2020-09-25 07:31:19,573 INFO  L87              Difference]: Start difference. First operand 382 states and 412 transitions. Second operand 7 states.
[2020-09-25 07:31:20,207 WARN  L193               SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-25 07:31:23,326 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 07:31:23,326 INFO  L93              Difference]: Finished difference Result 1010 states and 1290 transitions.
[2020-09-25 07:31:23,327 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. 
[2020-09-25 07:31:23,327 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 199
[2020-09-25 07:31:23,328 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 07:31:23,339 INFO  L225             Difference]: With dead ends: 1010
[2020-09-25 07:31:23,339 INFO  L226             Difference]: Without dead ends: 1007
[2020-09-25 07:31:23,340 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342
[2020-09-25 07:31:23,342 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1007 states.
[2020-09-25 07:31:23,474 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1007 to 657.
[2020-09-25 07:31:23,474 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 657 states.
[2020-09-25 07:31:23,479 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 728 transitions.
[2020-09-25 07:31:23,480 INFO  L78                 Accepts]: Start accepts. Automaton has 657 states and 728 transitions. Word has length 199
[2020-09-25 07:31:23,481 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 07:31:23,481 INFO  L479      AbstractCegarLoop]: Abstraction has 657 states and 728 transitions.
[2020-09-25 07:31:23,481 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-09-25 07:31:23,481 INFO  L276                IsEmpty]: Start isEmpty. Operand 657 states and 728 transitions.
[2020-09-25 07:31:23,487 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 288
[2020-09-25 07:31:23,487 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 07:31:23,488 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, 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, 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]
[2020-09-25 07:31:23,488 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-09-25 07:31:23,488 INFO  L427      AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:31:23,488 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:31:23,489 INFO  L82        PathProgramCache]: Analyzing trace with hash -1021507498, now seen corresponding path program 1 times
[2020-09-25 07:31:23,489 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:31:23,489 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1881121980]
[2020-09-25 07:31:23,490 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:31:23,544 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:31:23,613 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:23,724 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:23,871 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:24,106 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:25,169 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:25,634 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:31:26,636 FATAL L256   erpolLogProxyWrapper]: Now shrinking...