/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product42.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 08:39:33,536 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 08:39:33,540 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 08:39:33,567 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 08:39:33,567 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 08:39:33,569 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 08:39:33,571 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 08:39:33,573 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 08:39:33,575 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 08:39:33,576 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 08:39:33,577 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 08:39:33,578 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 08:39:33,579 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 08:39:33,580 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 08:39:33,581 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 08:39:33,586 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 08:39:33,587 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 08:39:33,590 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 08:39:33,593 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 08:39:33,596 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 08:39:33,599 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 08:39:33,602 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 08:39:33,603 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 08:39:33,604 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 08:39:33,611 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 08:39:33,611 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 08:39:33,611 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 08:39:33,616 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 08:39:33,617 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 08:39:33,620 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 08:39:33,620 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 08:39:33,622 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 08:39:33,623 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 08:39:33,624 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 08:39:33,625 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 08:39:33,626 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 08:39:33,626 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 08:39:33,627 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 08:39:33,627 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 08:39:33,628 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 08:39:33,639 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 08:39:33,640 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-25 08:39:33,669 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 08:39:33,669 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 08:39:33,670 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 08:39:33,671 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 08:39:33,671 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 08:39:33,671 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 08:39:33,672 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 08:39:33,672 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 08:39:33,672 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 08:39:33,672 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 08:39:33,672 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 08:39:33,673 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 08:39:33,673 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 08:39:33,673 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 08:39:33,673 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 08:39:33,674 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 08:39:33,674 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 08:39:33,674 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 08:39:33,674 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 08:39:33,675 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 08:39:33,675 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 08:39:33,675 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 08:39:33,675 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 08:39:33,675 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 08:39:33,676 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 08:39:33,676 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 08:39:33,676 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 08:39:33,676 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 08:39:33,677 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 08:39:33,677 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true;
[2020-09-25 08:39:34,192 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 08:39:34,220 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 08:39:34,226 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 08:39:34,227 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 08:39:34,229 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 08:39:34,230 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product42.cil.c
[2020-09-25 08:39:34,304 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/735327acf/605336c141c7468f97aba09ab760239a/FLAGb95ec05cd
[2020-09-25 08:39:34,915 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 08:39:34,916 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product42.cil.c
[2020-09-25 08:39:34,939 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/735327acf/605336c141c7468f97aba09ab760239a/FLAGb95ec05cd
[2020-09-25 08:39:35,166 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/735327acf/605336c141c7468f97aba09ab760239a
[2020-09-25 08:39:35,178 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 08:39:35,184 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 08:39:35,186 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 08:39:35,186 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 08:39:35,190 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 08:39:35,192 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:39:35" (1/1) ...
[2020-09-25 08:39:35,195 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18108b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:35, skipping insertion in model container
[2020-09-25 08:39:35,196 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:39:35" (1/1) ...
[2020-09-25 08:39:35,205 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 08:39:35,266 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 08:39:35,787 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 08:39:35,805 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 08:39:35,885 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 08:39:35,923 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 08:39:35,924 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:35 WrapperNode
[2020-09-25 08:39:35,924 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 08:39:35,925 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 08:39:35,925 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 08:39:35,925 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 08:39:35,941 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:35" (1/1) ...
[2020-09-25 08:39:35,942 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:35" (1/1) ...
[2020-09-25 08:39:35,962 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:35" (1/1) ...
[2020-09-25 08:39:35,963 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:35" (1/1) ...
[2020-09-25 08:39:35,996 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:35" (1/1) ...
[2020-09-25 08:39:36,008 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:35" (1/1) ...
[2020-09-25 08:39:36,014 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:35" (1/1) ...
[2020-09-25 08:39:36,023 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 08:39:36,023 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 08:39:36,023 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 08:39:36,024 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 08:39:36,026 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:35" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 08:39:36,107 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 08:39:36,108 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 08:39:36,108 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 08:39:36,108 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 08:39:36,108 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 08:39:36,108 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 08:39:36,109 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 08:39:36,110 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 08:39:36,110 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 08:39:36,110 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 08:39:36,110 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 08:39:36,110 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 08:39:36,111 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 08:39:36,111 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor
[2020-09-25 08:39:36,111 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 08:39:36,112 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 08:39:36,112 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 08:39:36,112 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 08:39:36,112 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 08:39:36,113 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-25 08:39:36,114 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-25 08:39:36,114 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1
[2020-09-25 08:39:36,114 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2
[2020-09-25 08:39:36,114 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 08:39:36,116 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 08:39:36,116 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 08:39:36,117 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 08:39:36,117 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 08:39:36,117 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 08:39:36,118 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 08:39:36,118 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 08:39:36,118 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 08:39:36,118 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 08:39:36,118 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 08:39:36,118 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 08:39:36,119 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 08:39:36,119 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 08:39:36,119 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 08:39:36,119 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 08:39:36,119 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-25 08:39:36,120 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 08:39:36,120 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 08:39:36,120 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 08:39:36,120 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 08:39:36,120 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 08:39:36,120 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 08:39:36,120 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 08:39:36,121 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 08:39:36,121 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 08:39:36,121 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 08:39:36,121 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 08:39:36,122 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 08:39:36,122 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 08:39:36,123 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 08:39:36,123 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 08:39:36,123 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 08:39:36,123 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 08:39:36,123 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 08:39:36,124 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 08:39:36,124 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 08:39:36,124 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 08:39:36,124 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 08:39:36,125 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-25 08:39:36,125 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 08:39:36,125 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 08:39:36,125 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 08:39:36,125 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 08:39:36,125 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 08:39:36,125 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 08:39:36,126 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-25 08:39:36,127 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 08:39:36,128 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 08:39:36,128 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 08:39:36,129 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 08:39:36,129 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2
[2020-09-25 08:39:36,129 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 08:39:36,129 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 08:39:36,129 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-25 08:39:36,129 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor
[2020-09-25 08:39:36,130 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 08:39:36,130 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 08:39:36,130 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1
[2020-09-25 08:39:36,130 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 08:39:36,130 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 08:39:36,130 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 08:39:36,131 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 08:39:36,132 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 08:39:36,132 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 08:39:36,132 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 08:39:36,132 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 08:39:36,132 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 08:39:36,132 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 08:39:36,132 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 08:39:36,133 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 08:39:37,479 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 08:39:37,479 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 08:39:37,487 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:39:37 BoogieIcfgContainer
[2020-09-25 08:39:37,487 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 08:39:37,488 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 08:39:37,488 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 08:39:37,492 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 08:39:37,492 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:39:35" (1/3) ...
[2020-09-25 08:39:37,493 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60babdbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:39:37, skipping insertion in model container
[2020-09-25 08:39:37,494 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:35" (2/3) ...
[2020-09-25 08:39:37,494 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60babdbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:39:37, skipping insertion in model container
[2020-09-25 08:39:37,494 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:39:37" (3/3) ...
[2020-09-25 08:39:37,497 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec2_product42.cil.c
[2020-09-25 08:39:37,509 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 08:39:37,520 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 08:39:37,543 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 08:39:37,581 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 08:39:37,581 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 08:39:37,581 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 08:39:37,581 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 08:39:37,582 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 08:39:37,582 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 08:39:37,582 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 08:39:37,582 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 08:39:37,616 INFO  L276                IsEmpty]: Start isEmpty. Operand 308 states.
[2020-09-25 08:39:37,634 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 149
[2020-09-25 08:39:37,635 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 08:39:37,637 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 08:39:37,637 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:39:37,646 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:39:37,647 INFO  L82        PathProgramCache]: Analyzing trace with hash 769335885, now seen corresponding path program 1 times
[2020-09-25 08:39:37,659 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:39:37,660 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1732395476]
[2020-09-25 08:39:37,660 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:39:37,989 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:38,241 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:38,423 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:39,770 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:40,735 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:41,496 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:43,008 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:43,008 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 181
[2020-09-25 08:39:43,009 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-25 08:39:43,009 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4999
[2020-09-25 08:39:43,013 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:43,013 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:43,013 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:43,039 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 136
[2020-09-25 08:39:43,040 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:43,040 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 30
[2020-09-25 08:39:43,449 WARN  L193               SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 08:39:43,452 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 08:39:43,468 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:43,480 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:43,588 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:43,588 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-25 08:39:43,588 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:43,589 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 119
[2020-09-25 08:39:43,589 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:43,589 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:43,590 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:43,590 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:43,590 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:43,590 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:43,654 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-25 08:39:43,656 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:43,657 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:43,659 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:43,659 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:39:43,659 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:43,660 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:39:43,660 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:43,660 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:43,660 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:43,661 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:43,661 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:43,661 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:43,663 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-25 08:39:43,665 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:43,666 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:43,670 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:43,670 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:39:43,670 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:43,671 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 08:39:43,671 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:43,671 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:43,672 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:43,672 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:43,672 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:43,672 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:43,675 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-25 08:39:43,676 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:43,678 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:43,696 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:43,697 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:39:43,697 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:43,697 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 19
[2020-09-25 08:39:43,698 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:43,698 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:43,698 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:43,698 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:43,699 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:43,699 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:43,701 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-25 08:39:43,701 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:43,703 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:43,705 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:43,705 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:39:43,705 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:43,706 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:39:43,706 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:43,706 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:43,706 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:43,707 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:43,707 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:43,707 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:43,716 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-25 08:39:43,717 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:43,718 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:43,720 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:43,721 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 08:39:43,721 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:43,721 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:39:43,722 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:43,722 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:43,722 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:43,722 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:43,723 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:43,723 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:43,725 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125
[2020-09-25 08:39:43,728 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:43,730 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:43,732 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:43,732 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:39:43,733 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:43,733 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:39:43,733 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:43,733 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:43,734 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:43,734 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 08:39:43,734 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:43,734 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:43,738 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135
[2020-09-25 08:39:43,739 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:43,740 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:43,743 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:43,744 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:39:43,744 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:43,744 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 08:39:43,745 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:43,745 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:43,745 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:43,745 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 08:39:43,746 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:43,746 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:43,785 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 08:39:43,786 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1732395476]
[2020-09-25 08:39:43,789 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 08:39:43,789 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-25 08:39:43,790 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550254607]
[2020-09-25 08:39:43,800 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-25 08:39:43,802 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 08:39:43,820 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-25 08:39:43,821 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2020-09-25 08:39:43,824 INFO  L87              Difference]: Start difference. First operand 308 states. Second operand 4 states.
[2020-09-25 08:39:45,236 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 08:39:45,237 INFO  L93              Difference]: Finished difference Result 478 states and 564 transitions.
[2020-09-25 08:39:45,237 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2020-09-25 08:39:45,239 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 148
[2020-09-25 08:39:45,241 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 08:39:45,262 INFO  L225             Difference]: With dead ends: 478
[2020-09-25 08:39:45,262 INFO  L226             Difference]: Without dead ends: 306
[2020-09-25 08:39:45,271 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2020-09-25 08:39:45,297 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 306 states.
[2020-09-25 08:39:45,467 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 257.
[2020-09-25 08:39:45,469 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 257 states.
[2020-09-25 08:39:45,473 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 278 transitions.
[2020-09-25 08:39:45,482 INFO  L78                 Accepts]: Start accepts. Automaton has 257 states and 278 transitions. Word has length 148
[2020-09-25 08:39:45,486 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 08:39:45,486 INFO  L479      AbstractCegarLoop]: Abstraction has 257 states and 278 transitions.
[2020-09-25 08:39:45,486 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-25 08:39:45,487 INFO  L276                IsEmpty]: Start isEmpty. Operand 257 states and 278 transitions.
[2020-09-25 08:39:45,498 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 150
[2020-09-25 08:39:45,498 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 08:39:45,499 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 08:39:45,499 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 08:39:45,500 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:39:45,500 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:39:45,500 INFO  L82        PathProgramCache]: Analyzing trace with hash 1712592355, now seen corresponding path program 1 times
[2020-09-25 08:39:45,501 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:39:45,501 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [435162022]
[2020-09-25 08:39:45,502 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:39:45,604 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:45,672 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:45,769 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:47,320 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:48,263 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:49,188 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:49,960 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:50,649 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:50,650 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 182
[2020-09-25 08:39:50,650 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 6
[2020-09-25 08:39:50,651 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5041
[2020-09-25 08:39:50,651 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:50,652 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:50,656 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:39:50,656 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 135
[2020-09-25 08:39:50,657 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 3
[2020-09-25 08:39:50,657 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-09-25 08:39:51,095 WARN  L193               SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 08:39:51,097 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 08:39:51,115 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:51,128 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:51,254 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:51,254 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-25 08:39:51,255 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:51,255 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 135
[2020-09-25 08:39:51,255 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:51,256 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:51,256 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:51,257 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:51,257 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:51,257 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 08:39:51,317 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-25 08:39:51,318 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:51,320 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:51,322 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:51,322 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:39:51,322 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:51,323 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:39:51,323 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:51,324 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:51,324 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:51,325 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:51,325 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:51,325 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 08:39:51,327 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-25 08:39:51,328 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:51,330 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:51,333 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:51,333 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:39:51,334 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:51,334 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 08:39:51,335 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:51,335 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:51,335 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:51,336 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:51,336 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:51,337 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:51,338 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-25 08:39:51,339 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:51,340 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:51,346 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:51,346 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:39:51,347 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:51,347 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 08:39:51,347 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:51,348 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:51,348 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:51,349 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:51,349 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:51,349 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:51,351 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-25 08:39:51,354 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:51,355 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:51,357 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:51,358 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:39:51,358 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:51,358 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:39:51,359 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:51,359 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:51,360 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:51,360 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:51,360 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:51,361 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:51,374 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-25 08:39:51,375 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:51,377 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:51,379 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:51,380 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 08:39:51,380 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:51,380 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:39:51,381 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:51,381 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:51,382 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:51,382 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:51,382 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:51,383 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:51,393 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126
[2020-09-25 08:39:51,394 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:51,396 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:51,398 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:51,398 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:39:51,399 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:51,399 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:39:51,399 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:51,400 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:51,400 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:51,401 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 08:39:51,401 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:51,401 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:51,403 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136
[2020-09-25 08:39:51,404 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:51,406 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:51,410 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:51,417 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:39:51,418 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:51,418 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 08:39:51,418 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:51,419 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:51,419 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:51,420 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 08:39:51,420 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:51,420 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:51,475 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 08:39:51,476 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [435162022]
[2020-09-25 08:39:51,476 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 08:39:51,476 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 08:39:51,477 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513003333]
[2020-09-25 08:39:51,481 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 08:39:51,481 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 08:39:51,482 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 08:39:51,482 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-25 08:39:51,482 INFO  L87              Difference]: Start difference. First operand 257 states and 278 transitions. Second operand 5 states.
[2020-09-25 08:39:52,264 WARN  L193               SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 08:39:53,255 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 08:39:53,255 INFO  L93              Difference]: Finished difference Result 403 states and 455 transitions.
[2020-09-25 08:39:53,256 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-25 08:39:53,256 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 149
[2020-09-25 08:39:53,257 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 08:39:53,266 INFO  L225             Difference]: With dead ends: 403
[2020-09-25 08:39:53,266 INFO  L226             Difference]: Without dead ends: 295
[2020-09-25 08:39:53,269 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 08:39:53,271 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 295 states.
[2020-09-25 08:39:53,334 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 247.
[2020-09-25 08:39:53,335 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 247 states.
[2020-09-25 08:39:53,337 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 265 transitions.
[2020-09-25 08:39:53,337 INFO  L78                 Accepts]: Start accepts. Automaton has 247 states and 265 transitions. Word has length 149
[2020-09-25 08:39:53,339 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 08:39:53,339 INFO  L479      AbstractCegarLoop]: Abstraction has 247 states and 265 transitions.
[2020-09-25 08:39:53,339 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 08:39:53,339 INFO  L276                IsEmpty]: Start isEmpty. Operand 247 states and 265 transitions.
[2020-09-25 08:39:53,342 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 163
[2020-09-25 08:39:53,342 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 08:39:53,343 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 08:39:53,343 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 08:39:53,343 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:39:53,343 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:39:53,344 INFO  L82        PathProgramCache]: Analyzing trace with hash -1803359450, now seen corresponding path program 1 times
[2020-09-25 08:39:53,344 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:39:53,344 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1746891550]
[2020-09-25 08:39:53,344 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:39:53,399 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:53,453 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:53,670 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:54,521 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:54,801 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:56,143 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:58,433 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:58,434 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 195
[2020-09-25 08:39:58,434 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-25 08:39:58,435 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5031
[2020-09-25 08:39:58,435 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:58,435 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:58,435 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:39:58,436 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 153
[2020-09-25 08:39:58,436 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-25 08:39:58,436 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:58,725 WARN  L193               SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 08:39:58,726 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 08:39:58,734 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:58,743 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:58,833 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:58,833 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-25 08:39:58,834 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:58,834 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 98
[2020-09-25 08:39:58,834 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:58,834 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:58,835 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:58,835 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:58,835 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:58,835 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:58,868 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-25 08:39:58,869 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:58,870 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:58,871 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:58,872 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:39:58,872 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:58,872 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:39:58,872 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:58,873 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:58,873 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:58,873 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:58,873 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:58,874 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:58,875 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-25 08:39:58,875 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:58,876 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:58,878 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:58,878 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:39:58,878 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:58,879 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:39:58,879 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:58,879 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:58,879 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:58,879 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:58,880 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:58,880 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:58,881 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-25 08:39:58,882 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:58,883 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:58,886 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:58,887 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:39:58,887 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:58,887 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 08:39:58,887 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:58,888 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:58,888 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:58,888 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:58,888 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:58,888 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:58,890 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-25 08:39:58,891 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:58,892 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:58,893 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:58,893 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:39:58,894 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:58,894 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:39:58,894 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:58,894 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:58,894 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:58,895 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:58,895 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:58,895 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:58,905 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-25 08:39:58,905 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:58,907 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:58,908 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:58,908 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 08:39:58,908 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:58,909 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:39:58,909 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:58,909 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:58,909 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:58,910 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:58,910 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:58,910 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:58,920 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129
[2020-09-25 08:39:58,921 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:58,923 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:58,925 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:58,926 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 08:39:58,926 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:58,926 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:39:58,926 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:58,926 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:58,927 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:39:58,927 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:39:58,927 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-25 08:39:58,927 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:58,930 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139
[2020-09-25 08:39:58,931 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:58,932 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:58,934 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:58,934 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:39:58,935 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:58,935 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:39:58,935 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:58,935 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:58,936 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:58,936 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 08:39:58,937 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:58,937 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:58,939 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149
[2020-09-25 08:39:58,940 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:39:58,941 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:39:58,944 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:39:58,944 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:39:58,944 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:39:58,945 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:39:58,945 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:39:58,946 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:39:58,946 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:39:58,946 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 08:39:58,947 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:39:58,947 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:39:59,000 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 08:39:59,001 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1746891550]
[2020-09-25 08:39:59,001 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 08:39:59,001 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-25 08:39:59,002 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303070186]
[2020-09-25 08:39:59,002 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-25 08:39:59,003 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 08:39:59,003 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-25 08:39:59,003 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-25 08:39:59,003 INFO  L87              Difference]: Start difference. First operand 247 states and 265 transitions. Second operand 6 states.
[2020-09-25 08:39:59,757 WARN  L193               SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-25 08:40:00,789 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 08:40:00,790 INFO  L93              Difference]: Finished difference Result 450 states and 520 transitions.
[2020-09-25 08:40:00,790 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2020-09-25 08:40:00,790 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 162
[2020-09-25 08:40:00,791 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 08:40:00,794 INFO  L225             Difference]: With dead ends: 450
[2020-09-25 08:40:00,794 INFO  L226             Difference]: Without dead ends: 318
[2020-09-25 08:40:00,795 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2020-09-25 08:40:00,796 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 318 states.
[2020-09-25 08:40:00,836 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 247.
[2020-09-25 08:40:00,836 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 247 states.
[2020-09-25 08:40:00,838 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 264 transitions.
[2020-09-25 08:40:00,838 INFO  L78                 Accepts]: Start accepts. Automaton has 247 states and 264 transitions. Word has length 162
[2020-09-25 08:40:00,839 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 08:40:00,839 INFO  L479      AbstractCegarLoop]: Abstraction has 247 states and 264 transitions.
[2020-09-25 08:40:00,839 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-25 08:40:00,839 INFO  L276                IsEmpty]: Start isEmpty. Operand 247 states and 264 transitions.
[2020-09-25 08:40:00,841 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 171
[2020-09-25 08:40:00,841 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 08:40:00,841 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]
[2020-09-25 08:40:00,842 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 08:40:00,842 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:40:00,842 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:40:00,842 INFO  L82        PathProgramCache]: Analyzing trace with hash 1365821347, now seen corresponding path program 1 times
[2020-09-25 08:40:00,843 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:40:00,843 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [451111264]
[2020-09-25 08:40:00,843 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:40:00,893 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:40:00,949 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:01,195 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:02,033 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:02,938 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:03,131 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:04,885 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:05,899 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:40:05,900 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 207
[2020-09-25 08:40:05,900 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 6
[2020-09-25 08:40:05,900 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5003
[2020-09-25 08:40:05,901 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:40:05,901 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:40:05,901 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 08:40:05,901 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 124
[2020-09-25 08:40:05,901 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 79
[2020-09-25 08:40:05,902 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:40:06,311 WARN  L193               SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 08:40:06,312 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 08:40:06,319 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:40:06,328 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:06,409 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:40:06,409 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-25 08:40:06,410 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:40:06,410 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 88
[2020-09-25 08:40:06,410 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:40:06,410 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:40:06,411 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:40:06,411 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:40:06,411 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:40:06,411 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:40:06,440 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-25 08:40:06,440 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:40:06,441 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:06,443 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:40:06,443 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:40:06,443 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:40:06,444 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:40:06,444 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:40:06,444 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:40:06,444 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:40:06,444 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:40:06,445 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:40:06,445 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:40:06,446 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-25 08:40:06,446 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:40:06,447 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:06,448 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:40:06,448 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:40:06,449 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:40:06,449 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 08:40:06,449 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:40:06,449 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:40:06,450 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:40:06,450 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:40:06,450 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:40:06,450 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:40:06,451 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-25 08:40:06,452 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:40:06,453 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:06,456 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:40:06,457 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:40:06,457 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:40:06,457 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 08:40:06,457 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:40:06,458 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:40:06,458 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:40:06,458 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:40:06,458 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:40:06,458 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:40:06,460 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-25 08:40:06,461 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:40:06,461 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:06,463 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:40:06,463 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:40:06,464 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:40:06,464 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 08:40:06,464 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:40:06,464 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:40:06,464 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:40:06,465 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:40:06,465 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:40:06,465 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:40:06,473 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-25 08:40:06,475 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:40:06,476 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:06,479 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:40:06,480 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 08:40:06,480 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:40:06,480 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 08:40:06,480 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:40:06,481 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:40:06,481 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:40:06,481 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:40:06,481 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-25 08:40:06,481 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:40:06,505 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129
[2020-09-25 08:40:06,506 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:40:06,508 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:06,520 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:40:06,520 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 08:40:06,521 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:40:06,521 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 13
[2020-09-25 08:40:06,521 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:40:06,521 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:40:06,522 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:40:06,524 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:40:06,524 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-09-25 08:40:06,524 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-25 08:40:06,540 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136
[2020-09-25 08:40:06,541 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:40:06,544 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:06,549 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:40:06,549 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-25 08:40:06,550 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:40:06,550 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 08:40:06,550 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:40:06,550 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:40:06,551 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:40:06,551 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:40:06,551 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-09-25 08:40:06,551 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:40:06,553 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 08:40:06,555 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:40:06,556 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:06,557 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:40:06,557 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:40:06,558 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:40:06,558 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 08:40:06,558 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:40:06,558 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:40:06,559 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:40:06,559 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:40:06,559 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:40:06,559 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:40:06,560 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147
[2020-09-25 08:40:06,561 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:40:06,563 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:06,565 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:40:06,566 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:40:06,566 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:40:06,566 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:40:06,566 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:40:06,567 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:40:06,567 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:40:06,567 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:40:06,567 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 08:40:06,567 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 08:40:06,569 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157
[2020-09-25 08:40:06,571 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:40:06,574 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:06,577 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:40:06,578 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:40:06,578 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:40:06,578 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 08:40:06,579 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:40:06,579 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:40:06,579 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:40:06,580 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:40:06,580 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 08:40:06,580 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:40:06,641 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 08:40:06,644 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [451111264]
[2020-09-25 08:40:06,644 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 08:40:06,645 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-09-25 08:40:06,646 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195338420]
[2020-09-25 08:40:06,647 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-09-25 08:40:06,647 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 08:40:06,648 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-09-25 08:40:06,650 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2020-09-25 08:40:06,650 INFO  L87              Difference]: Start difference. First operand 247 states and 264 transitions. Second operand 7 states.
[2020-09-25 08:40:07,203 WARN  L193               SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 08:40:09,709 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 08:40:09,709 INFO  L93              Difference]: Finished difference Result 656 states and 845 transitions.
[2020-09-25 08:40:09,710 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2020-09-25 08:40:09,710 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 170
[2020-09-25 08:40:09,711 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 08:40:09,716 INFO  L225             Difference]: With dead ends: 656
[2020-09-25 08:40:09,717 INFO  L226             Difference]: Without dead ends: 653
[2020-09-25 08:40:09,718 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342
[2020-09-25 08:40:09,719 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 653 states.
[2020-09-25 08:40:09,791 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 379.
[2020-09-25 08:40:09,791 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 379 states.
[2020-09-25 08:40:09,793 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 415 transitions.
[2020-09-25 08:40:09,793 INFO  L78                 Accepts]: Start accepts. Automaton has 379 states and 415 transitions. Word has length 170
[2020-09-25 08:40:09,794 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 08:40:09,794 INFO  L479      AbstractCegarLoop]: Abstraction has 379 states and 415 transitions.
[2020-09-25 08:40:09,794 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-09-25 08:40:09,794 INFO  L276                IsEmpty]: Start isEmpty. Operand 379 states and 415 transitions.
[2020-09-25 08:40:09,798 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 229
[2020-09-25 08:40:09,798 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 08:40:09,798 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 08:40:09,799 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-25 08:40:09,799 INFO  L427      AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:40:09,799 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:40:09,799 INFO  L82        PathProgramCache]: Analyzing trace with hash 506560584, now seen corresponding path program 1 times
[2020-09-25 08:40:09,800 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:40:09,800 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [800355634]
[2020-09-25 08:40:09,800 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:40:09,854 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:40:09,917 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:10,055 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:10,369 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:11,095 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:11,875 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:12,202 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:12,952 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:13,553 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:14,857 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:40:14,857 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 279
[2020-09-25 08:40:14,858 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 8
[2020-09-25 08:40:14,858 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5000
[2020-09-25 08:40:14,858 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:40:14,858 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:40:14,858 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 08:40:14,859 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 159
[2020-09-25 08:40:14,859 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 79
[2020-09-25 08:40:14,859 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:40:15,167 WARN  L193               SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 08:40:15,168 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 08:40:15,174 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:40:15,184 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:15,270 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:40:15,271 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-25 08:40:15,271 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:40:15,271 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 94
[2020-09-25 08:40:15,271 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:40:15,271 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:40:15,272 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:40:15,272 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:40:15,272 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:40:15,272 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:40:15,300 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-25 08:40:15,301 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:40:15,302 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:15,303 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:40:15,303 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:40:15,303 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:40:15,303 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 08:40:15,304 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:40:15,304 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:40:15,304 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:40:15,304 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:40:15,305 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:40:15,305 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:40:15,306 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-25 08:40:15,307 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:40:15,308 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:15,309 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:40:15,309 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:40:15,309 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:40:15,310 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 08:40:15,310 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:40:15,310 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:40:15,310 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:40:15,310 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:40:15,311 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:40:15,311 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:40:15,312 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-25 08:40:15,312 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:40:15,314 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:15,318 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:40:15,318 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:40:15,318 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:40:15,319 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 08:40:15,319 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:40:15,319 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:40:15,319 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:40:15,319 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:40:15,320 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:40:15,320 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:40:15,321 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-25 08:40:15,325 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:40:15,327 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:15,328 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:40:15,328 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:40:15,329 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:40:15,329 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 08:40:15,329 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:40:15,329 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:40:15,330 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:40:15,330 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:40:15,330 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:40:15,330 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:40:15,340 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-25 08:40:15,341 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:40:15,342 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:15,343 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:40:15,343 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 08:40:15,343 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:40:15,345 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:40:15,345 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:40:15,345 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:40:15,345 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:40:15,346 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:40:15,346 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:40:15,346 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:40:15,355 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129
[2020-09-25 08:40:15,356 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:40:15,357 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:15,360 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:40:15,360 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 08:40:15,360 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:40:15,361 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:40:15,361 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:40:15,361 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:40:15,361 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:40:15,361 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:40:15,362 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:40:15,362 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:40:15,377 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133
[2020-09-25 08:40:15,382 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:40:15,388 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:15,411 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:15,434 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:15,601 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:40:15,601 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 55
[2020-09-25 08:40:15,601 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 08:40:15,601 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 217
[2020-09-25 08:40:15,602 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:40:15,602 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:40:15,603 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 08:40:15,603 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-25 08:40:15,603 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 43
[2020-09-25 08:40:15,603 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:40:15,632 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 08:40:15,633 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:40:15,635 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:15,647 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:15,649 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:40:15,649 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-25 08:40:15,649 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 08:40:15,650 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 15
[2020-09-25 08:40:15,650 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:40:15,650 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:40:15,650 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-25 08:40:15,650 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-09-25 08:40:15,651 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 14
[2020-09-25 08:40:15,651 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:40:15,667 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 08:40:15,668 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:40:15,669 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:15,671 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:40:15,672 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:40:15,672 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:40:15,672 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:40:15,672 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:40:15,673 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:40:15,673 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:40:15,673 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:40:15,673 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 08:40:15,674 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:40:15,675 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2020-09-25 08:40:15,678 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:40:15,682 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:15,728 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:40:15,729 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 36
[2020-09-25 08:40:15,729 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:40:15,729 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 49
[2020-09-25 08:40:15,729 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:40:15,730 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:40:15,730 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-25 08:40:15,730 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 21
[2020-09-25 08:40:15,730 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 13
[2020-09-25 08:40:15,730 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:40:15,772 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 08:40:15,773 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:40:15,775 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:15,777 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:40:15,777 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:40:15,777 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:40:15,777 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:40:15,777 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:40:15,778 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:40:15,778 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:40:15,778 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:40:15,778 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:40:15,779 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:40:15,780 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-09-25 08:40:15,781 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:40:15,782 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:15,787 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:40:15,787 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:40:15,787 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:40:15,787 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 08:40:15,788 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:40:15,788 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:40:15,788 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-25 08:40:15,788 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:40:15,788 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 08:40:15,789 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:40:15,818 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187
[2020-09-25 08:40:15,819 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:40:15,820 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:15,824 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:40:15,825 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 08:40:15,825 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:40:15,825 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 08:40:15,825 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:40:15,825 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:40:15,826 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:40:15,826 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:40:15,826 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-09-25 08:40:15,826 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:40:15,828 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194
[2020-09-25 08:40:15,829 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:40:15,830 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:15,837 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:40:15,838 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-25 08:40:15,838 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:40:15,838 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 08:40:15,838 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:40:15,839 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:40:15,839 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-25 08:40:15,839 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-09-25 08:40:15,839 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 14
[2020-09-25 08:40:15,839 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 08:40:15,912 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 08:40:15,913 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:40:15,915 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:15,916 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:40:15,917 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:40:15,917 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:40:15,917 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:40:15,917 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:40:15,918 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:40:15,918 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:40:15,918 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:40:15,918 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 08:40:15,918 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:40:15,920 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205
[2020-09-25 08:40:15,921 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:40:15,922 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:15,923 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:40:15,923 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:40:15,924 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:40:15,924 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:40:15,924 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:40:15,924 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:40:15,924 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:40:15,925 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 08:40:15,925 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:40:15,925 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:40:15,927 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215
[2020-09-25 08:40:15,927 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:40:15,929 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:40:15,930 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:40:15,930 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:40:15,930 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:40:15,930 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:40:15,931 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:40:15,931 FATAL L256   erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:40:15,931 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:40:15,931 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 08:40:15,931 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:40:15,932 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 08:40:15,992 INFO  L134       CoverageAnalysis]: Checked inductivity of 53 backedges. 30 proven. 5 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2020-09-25 08:40:15,993 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [800355634]
[2020-09-25 08:40:15,993 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 08:40:15,993 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15
[2020-09-25 08:40:15,993 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314831601]
[2020-09-25 08:40:15,994 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 15 states
[2020-09-25 08:40:15,994 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 08:40:15,994 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2020-09-25 08:40:15,995 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210
[2020-09-25 08:40:15,995 INFO  L87              Difference]: Start difference. First operand 379 states and 415 transitions. Second operand 15 states.
[2020-09-25 08:40:16,632 WARN  L193               SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-25 08:40:18,757 WARN  L193               SmtUtils]: Spent 549.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190