/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=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--ti--wlcore--wlcore_spi.ko-entry_point.cil.out.i


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 21:11:34,919 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 21:11:34,923 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 21:11:34,969 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 21:11:34,970 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 21:11:34,977 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 21:11:34,980 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 21:11:34,983 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 21:11:34,986 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 21:11:34,989 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 21:11:34,990 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 21:11:34,991 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 21:11:34,991 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 21:11:34,994 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 21:11:34,997 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 21:11:34,998 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 21:11:35,000 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 21:11:35,001 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 21:11:35,003 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 21:11:35,011 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 21:11:35,013 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 21:11:35,014 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 21:11:35,015 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 21:11:35,016 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 21:11:35,028 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 21:11:35,029 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 21:11:35,029 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 21:11:35,038 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 21:11:35,039 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 21:11:35,040 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 21:11:35,040 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 21:11:35,041 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 21:11:35,044 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 21:11:35,045 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 21:11:35,046 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 21:11:35,046 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 21:11:35,047 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
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[2020-09-24 21:11:35,047 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 21:11:35,049 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 21:11:35,049 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 21:11:35,051 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf
[2020-09-24 21:11:35,095 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 21:11:35,095 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 21:11:35,098 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 21:11:35,098 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 21:11:35,098 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 21:11:35,099 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 21:11:35,099 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 21:11:35,099 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 21:11:35,099 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 21:11:35,099 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 21:11:35,100 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 21:11:35,101 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 21:11:35,101 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 21:11:35,101 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 21:11:35,102 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 21:11:35,102 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 21:11:35,102 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 21:11:35,102 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 21:11:35,102 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 21:11:35,103 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 21:11:35,103 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 21:11:35,103 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 21:11:35,103 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 21:11:35,103 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 21:11:35,104 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 21:11:35,104 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 21:11:35,104 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2020-09-24 21:11:35,104 INFO  L138        SettingsManager]:  * To the following directory=dump/
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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;
[2020-09-24 21:11:35,571 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 21:11:35,590 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 21:11:35,595 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 21:11:35,597 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 21:11:35,598 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 21:11:35,599 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--ti--wlcore--wlcore_spi.ko-entry_point.cil.out.i
[2020-09-24 21:11:35,690 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1fb3a3129/a8dd7d4925ea466395fefc25f4ef6a21/FLAG5f6fe0156
[2020-09-24 21:11:36,597 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 21:11:36,598 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--ti--wlcore--wlcore_spi.ko-entry_point.cil.out.i
[2020-09-24 21:11:36,645 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1fb3a3129/a8dd7d4925ea466395fefc25f4ef6a21/FLAG5f6fe0156
[2020-09-24 21:11:37,082 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1fb3a3129/a8dd7d4925ea466395fefc25f4ef6a21
[2020-09-24 21:11:37,095 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 21:11:37,099 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 21:11:37,103 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 21:11:37,103 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 21:11:37,107 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 21:11:37,109 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:11:37" (1/1) ...
[2020-09-24 21:11:37,114 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ccce517 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:37, skipping insertion in model container
[2020-09-24 21:11:37,114 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:11:37" (1/1) ...
[2020-09-24 21:11:37,124 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 21:11:37,263 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 21:11:38,620 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 21:11:38,656 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 21:11:39,121 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 21:11:39,202 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 21:11:39,203 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:39 WrapperNode
[2020-09-24 21:11:39,203 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 21:11:39,204 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 21:11:39,205 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 21:11:39,205 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 21:11:39,227 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:39" (1/1) ...
[2020-09-24 21:11:39,227 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:39" (1/1) ...
[2020-09-24 21:11:39,268 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:39" (1/1) ...
[2020-09-24 21:11:39,269 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:39" (1/1) ...
[2020-09-24 21:11:39,353 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:39" (1/1) ...
[2020-09-24 21:11:39,372 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:39" (1/1) ...
[2020-09-24 21:11:39,383 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:39" (1/1) ...
[2020-09-24 21:11:39,400 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 21:11:39,401 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 21:11:39,401 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 21:11:39,401 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 21:11:39,403 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:39" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 21:11:39,508 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 21:11:39,509 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 21:11:39,510 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID
[2020-09-24 21:11:39,510 INFO  L138     BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD
[2020-09-24 21:11:39,510 INFO  L138     BoogieDeclarations]: Found implementation of procedure list_add_tail
[2020-09-24 21:11:39,511 INFO  L138     BoogieDeclarations]: Found implementation of procedure __kmalloc
[2020-09-24 21:11:39,512 INFO  L138     BoogieDeclarations]: Found implementation of procedure kmalloc
[2020-09-24 21:11:39,512 INFO  L138     BoogieDeclarations]: Found implementation of procedure kzalloc
[2020-09-24 21:11:39,512 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2020-09-24 21:11:39,513 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_malloc
[2020-09-24 21:11:39,514 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_zalloc
[2020-09-24 21:11:39,514 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_undef_int
[2020-09-24 21:11:39,515 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong
[2020-09-24 21:11:39,515 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_error
[2020-09-24 21:11:39,515 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_stop
[2020-09-24 21:11:39,515 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect
[2020-09-24 21:11:39,516 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap
[2020-09-24 21:11:39,519 INFO  L138     BoogieDeclarations]: Found implementation of procedure to_spi_device
[2020-09-24 21:11:39,519 INFO  L138     BoogieDeclarations]: Found implementation of procedure spi_set_drvdata
[2020-09-24 21:11:39,520 INFO  L138     BoogieDeclarations]: Found implementation of procedure spi_get_drvdata
[2020-09-24 21:11:39,520 INFO  L138     BoogieDeclarations]: Found implementation of procedure spi_unregister_driver
[2020-09-24 21:11:39,520 INFO  L138     BoogieDeclarations]: Found implementation of procedure spi_message_init
[2020-09-24 21:11:39,520 INFO  L138     BoogieDeclarations]: Found implementation of procedure spi_message_add_tail
[2020-09-24 21:11:39,520 INFO  L138     BoogieDeclarations]: Found implementation of procedure wl12xx_spi_reset
[2020-09-24 21:11:39,521 INFO  L138     BoogieDeclarations]: Found implementation of procedure wl12xx_spi_init
[2020-09-24 21:11:39,521 INFO  L138     BoogieDeclarations]: Found implementation of procedure wl12xx_spi_read_busy
[2020-09-24 21:11:39,521 INFO  L138     BoogieDeclarations]: Found implementation of procedure wl12xx_spi_raw_read
[2020-09-24 21:11:39,522 INFO  L138     BoogieDeclarations]: Found implementation of procedure wl12xx_spi_raw_write
[2020-09-24 21:11:39,522 INFO  L138     BoogieDeclarations]: Found implementation of procedure wl1271_probe
[2020-09-24 21:11:39,522 INFO  L138     BoogieDeclarations]: Found implementation of procedure wl1271_remove
[2020-09-24 21:11:39,522 INFO  L138     BoogieDeclarations]: Found implementation of procedure wl1271_spi_driver_init
[2020-09-24 21:11:39,522 INFO  L138     BoogieDeclarations]: Found implementation of procedure wl1271_spi_driver_exit
[2020-09-24 21:11:39,523 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_initialize_wl1271_if_operations_2
[2020-09-24 21:11:39,523 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_initialize_spi_driver_1
[2020-09-24 21:11:39,523 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 21:11:39,523 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_stop___0
[2020-09-24 21:11:39,523 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata
[2020-09-24 21:11:39,524 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata
[2020-09-24 21:11:39,524 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf
[2020-09-24 21:11:39,524 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_free_urb
[2020-09-24 21:11:39,524 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb
[2020-09-24 21:11:39,524 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb
[2020-09-24 21:11:39,524 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_submit_urb
[2020-09-24 21:11:39,525 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_get_dev
[2020-09-24 21:11:39,525 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_put_dev
[2020-09-24 21:11:39,525 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_get_interface
[2020-09-24 21:11:39,525 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_put_interface
[2020-09-24 21:11:39,525 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_serial_register
[2020-09-24 21:11:39,526 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister
[2020-09-24 21:11:39,526 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_check_final_state
[2020-09-24 21:11:39,526 INFO  L138     BoogieDeclarations]: Found implementation of procedure __list_add
[2020-09-24 21:11:39,526 INFO  L138     BoogieDeclarations]: Found implementation of procedure crc7
[2020-09-24 21:11:39,527 INFO  L138     BoogieDeclarations]: Found implementation of procedure dev_err
[2020-09-24 21:11:39,527 INFO  L138     BoogieDeclarations]: Found implementation of procedure dev_get_drvdata
[2020-09-24 21:11:39,527 INFO  L138     BoogieDeclarations]: Found implementation of procedure dev_set_drvdata
[2020-09-24 21:11:39,528 INFO  L138     BoogieDeclarations]: Found implementation of procedure driver_unregister
[2020-09-24 21:11:39,528 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_initialize
[2020-09-24 21:11:39,528 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_release_2
[2020-09-24 21:11:39,529 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_setup_2
[2020-09-24 21:11:39,529 INFO  L138     BoogieDeclarations]: Found implementation of procedure platform_device_add
[2020-09-24 21:11:39,529 INFO  L138     BoogieDeclarations]: Found implementation of procedure platform_device_add_data
[2020-09-24 21:11:39,529 INFO  L138     BoogieDeclarations]: Found implementation of procedure platform_device_add_resources
[2020-09-24 21:11:39,529 INFO  L138     BoogieDeclarations]: Found implementation of procedure platform_device_alloc
[2020-09-24 21:11:39,530 INFO  L138     BoogieDeclarations]: Found implementation of procedure platform_device_put
[2020-09-24 21:11:39,530 INFO  L138     BoogieDeclarations]: Found implementation of procedure platform_device_unregister
[2020-09-24 21:11:39,530 INFO  L138     BoogieDeclarations]: Found implementation of procedure spi_register_driver
[2020-09-24 21:11:39,530 INFO  L138     BoogieDeclarations]: Found implementation of procedure spi_setup
[2020-09-24 21:11:39,530 INFO  L138     BoogieDeclarations]: Found implementation of procedure spi_sync
[2020-09-24 21:11:39,530 INFO  L138     BoogieDeclarations]: Found implementation of procedure warn_slowpath_null
[2020-09-24 21:11:39,531 INFO  L138     BoogieDeclarations]: Found implementation of procedure kfree
[2020-09-24 21:11:39,531 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset
[2020-09-24 21:11:39,531 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit
[2020-09-24 21:11:39,589 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 21:11:39,589 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv__builtin_expect
[2020-09-24 21:11:39,589 INFO  L130     BoogieDeclarations]: Found specification of procedure memset
[2020-09-24 21:11:39,589 INFO  L130     BoogieDeclarations]: Found specification of procedure warn_slowpath_null
[2020-09-24 21:11:39,589 INFO  L130     BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD
[2020-09-24 21:11:39,589 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 21:11:39,590 INFO  L130     BoogieDeclarations]: Found specification of procedure __list_add
[2020-09-24 21:11:39,590 INFO  L130     BoogieDeclarations]: Found specification of procedure list_add_tail
[2020-09-24 21:11:39,590 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 21:11:39,590 INFO  L130     BoogieDeclarations]: Found specification of procedure driver_unregister
[2020-09-24 21:11:39,590 INFO  L130     BoogieDeclarations]: Found specification of procedure dev_get_drvdata
[2020-09-24 21:11:39,590 INFO  L130     BoogieDeclarations]: Found specification of procedure dev_set_drvdata
[2020-09-24 21:11:39,590 INFO  L130     BoogieDeclarations]: Found specification of procedure dev_err
[2020-09-24 21:11:39,591 INFO  L130     BoogieDeclarations]: Found specification of procedure kfree
[2020-09-24 21:11:39,593 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_malloc
[2020-09-24 21:11:39,593 INFO  L130     BoogieDeclarations]: Found specification of procedure __kmalloc
[2020-09-24 21:11:39,593 INFO  L130     BoogieDeclarations]: Found specification of procedure kmalloc
[2020-09-24 21:11:39,594 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_zalloc
[2020-09-24 21:11:39,594 INFO  L130     BoogieDeclarations]: Found specification of procedure kzalloc
[2020-09-24 21:11:39,594 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 21:11:39,594 INFO  L130     BoogieDeclarations]: Found specification of procedure calloc
[2020-09-24 21:11:39,594 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 21:11:39,595 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_size_t
[2020-09-24 21:11:39,595 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong
[2020-09-24 21:11:39,595 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2020-09-24 21:11:39,595 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2020-09-24 21:11:39,595 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 21:11:39,596 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.meminit
[2020-09-24 21:11:39,596 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_undef_int
[2020-09-24 21:11:39,596 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_undef_ulong
[2020-09-24 21:11:39,596 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_error
[2020-09-24 21:11:39,596 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_stop
[2020-09-24 21:11:39,597 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv__builtin_trap
[2020-09-24 21:11:39,597 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_initialize_wl1271_if_operations_2
[2020-09-24 21:11:39,597 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_initialize_spi_driver_1
[2020-09-24 21:11:39,597 INFO  L130     BoogieDeclarations]: Found specification of procedure crc7
[2020-09-24 21:11:39,597 INFO  L130     BoogieDeclarations]: Found specification of procedure to_spi_device
[2020-09-24 21:11:39,598 INFO  L130     BoogieDeclarations]: Found specification of procedure spi_set_drvdata
[2020-09-24 21:11:39,598 INFO  L130     BoogieDeclarations]: Found specification of procedure spi_get_drvdata
[2020-09-24 21:11:39,598 INFO  L130     BoogieDeclarations]: Found specification of procedure spi_register_driver
[2020-09-24 21:11:39,598 INFO  L130     BoogieDeclarations]: Found specification of procedure spi_unregister_driver
[2020-09-24 21:11:39,598 INFO  L130     BoogieDeclarations]: Found specification of procedure spi_message_init
[2020-09-24 21:11:39,598 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset
[2020-09-24 21:11:39,599 INFO  L130     BoogieDeclarations]: Found specification of procedure spi_message_add_tail
[2020-09-24 21:11:39,600 INFO  L130     BoogieDeclarations]: Found specification of procedure spi_setup
[2020-09-24 21:11:39,600 INFO  L130     BoogieDeclarations]: Found specification of procedure spi_sync
[2020-09-24 21:11:39,600 INFO  L130     BoogieDeclarations]: Found specification of procedure platform_device_unregister
[2020-09-24 21:11:39,600 INFO  L130     BoogieDeclarations]: Found specification of procedure platform_device_alloc
[2020-09-24 21:11:39,603 INFO  L130     BoogieDeclarations]: Found specification of procedure platform_device_add_resources
[2020-09-24 21:11:39,604 INFO  L130     BoogieDeclarations]: Found specification of procedure platform_device_add_data
[2020-09-24 21:11:39,604 INFO  L130     BoogieDeclarations]: Found specification of procedure platform_device_add
[2020-09-24 21:11:39,605 INFO  L130     BoogieDeclarations]: Found specification of procedure platform_device_put
[2020-09-24 21:11:39,605 INFO  L130     BoogieDeclarations]: Found specification of procedure wl12xx_spi_reset
[2020-09-24 21:11:39,606 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 21:11:39,607 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 21:11:39,607 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 21:11:39,608 INFO  L130     BoogieDeclarations]: Found specification of procedure wl12xx_spi_init
[2020-09-24 21:11:39,609 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 21:11:39,609 INFO  L130     BoogieDeclarations]: Found specification of procedure wl12xx_spi_read_busy
[2020-09-24 21:11:39,609 INFO  L130     BoogieDeclarations]: Found specification of procedure wl12xx_spi_raw_read
[2020-09-24 21:11:39,609 INFO  L130     BoogieDeclarations]: Found specification of procedure wl12xx_spi_raw_write
[2020-09-24 21:11:39,609 INFO  L130     BoogieDeclarations]: Found specification of procedure wl1271_probe
[2020-09-24 21:11:39,610 INFO  L130     BoogieDeclarations]: Found specification of procedure wl1271_remove
[2020-09-24 21:11:39,610 INFO  L130     BoogieDeclarations]: Found specification of procedure wl1271_spi_driver_init
[2020-09-24 21:11:39,610 INFO  L130     BoogieDeclarations]: Found specification of procedure wl1271_spi_driver_exit
[2020-09-24 21:11:39,610 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_initialize
[2020-09-24 21:11:39,610 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_release_2
[2020-09-24 21:11:39,611 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_check_final_state
[2020-09-24 21:11:39,614 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_setup_2
[2020-09-24 21:11:39,614 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 21:11:39,614 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_stop___0
[2020-09-24 21:11:39,614 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata
[2020-09-24 21:11:39,614 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata
[2020-09-24 21:11:39,615 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf
[2020-09-24 21:11:39,616 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_free_urb
[2020-09-24 21:11:39,616 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb
[2020-09-24 21:11:39,616 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb
[2020-09-24 21:11:39,616 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_submit_urb
[2020-09-24 21:11:39,616 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID
[2020-09-24 21:11:39,617 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_get_dev
[2020-09-24 21:11:39,617 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_put_dev
[2020-09-24 21:11:39,617 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_get_interface
[2020-09-24 21:11:39,617 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_put_interface
[2020-09-24 21:11:39,617 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_serial_register
[2020-09-24 21:11:39,617 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_serial_deregister
[2020-09-24 21:11:39,617 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar
[2020-09-24 21:11:39,617 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 21:11:39,617 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 21:11:39,617 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 21:11:39,618 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$
[2020-09-24 21:11:39,618 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 21:11:40,726 INFO  L732   $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true;
[2020-09-24 21:11:41,497 INFO  L732   $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true;
[2020-09-24 21:11:41,804 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 21:11:41,805 INFO  L295             CfgBuilder]: Removed 0 assume(true) statements.
[2020-09-24 21:11:41,815 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:11:41 BoogieIcfgContainer
[2020-09-24 21:11:41,816 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 21:11:41,817 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 21:11:41,817 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 21:11:41,821 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 21:11:41,821 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:11:37" (1/3) ...
[2020-09-24 21:11:41,822 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32b58d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:11:41, skipping insertion in model container
[2020-09-24 21:11:41,822 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:39" (2/3) ...
[2020-09-24 21:11:41,822 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32b58d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:11:41, skipping insertion in model container
[2020-09-24 21:11:41,823 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:11:41" (3/3) ...
[2020-09-24 21:11:41,825 INFO  L109   eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--ti--wlcore--wlcore_spi.ko-entry_point.cil.out.i
[2020-09-24 21:11:41,836 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 21:11:41,848 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 21:11:41,870 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 21:11:41,904 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 21:11:41,905 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 21:11:41,905 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 21:11:41,905 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 21:11:41,905 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 21:11:41,905 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 21:11:41,905 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 21:11:41,906 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 21:11:41,949 INFO  L276                IsEmpty]: Start isEmpty. Operand 1099 states.
[2020-09-24 21:11:41,969 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 191
[2020-09-24 21:11:41,969 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 21:11:41,971 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 21:11:41,971 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:11:41,979 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:11:41,980 INFO  L82        PathProgramCache]: Analyzing trace with hash -126969232, now seen corresponding path program 1 times
[2020-09-24 21:11:41,992 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:11:41,992 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1985111983]
[2020-09-24 21:11:41,993 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:11:42,591 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:11:42,848 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:11:43,120 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:11:43,585 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:11:45,706 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:11:47,679 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:11:47,679 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 215
[2020-09-24 21:11:47,680 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-24 21:11:47,680 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5078
[2020-09-24 21:11:47,683 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 21:11:47,684 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-24 21:11:47,684 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 169
[2020-09-24 21:11:47,684 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:11:47,685 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-24 21:11:48,139 WARN  L193               SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 21:11:48,141 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:11:48,155 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:11:48,188 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:11:48,349 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:11:48,350 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 84
[2020-09-24 21:11:48,350 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:11:48,350 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 193
[2020-09-24 21:11:48,351 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 21:11:48,351 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:11:48,351 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:11:48,351 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:11:48,352 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:11:48,446 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102
[2020-09-24 21:11:48,449 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:11:48,462 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:11:48,506 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:11:48,506 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 17
[2020-09-24 21:11:48,506 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:11:48,507 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 56
[2020-09-24 21:11:48,507 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 21:11:48,507 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:11:48,507 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:11:48,508 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:11:48,508 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:11:48,536 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 21:11:48,538 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:11:48,551 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:11:48,568 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:11:48,569 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 17
[2020-09-24 21:11:48,569 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:11:48,569 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 29
[2020-09-24 21:11:48,569 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 21:11:48,570 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:11:48,570 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:11:48,570 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:11:48,570 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:11:48,599 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144
[2020-09-24 21:11:48,600 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:11:48,612 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:11:48,662 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:11:48,663 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:11:48,663 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:11:48,663 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 62
[2020-09-24 21:11:48,663 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 21:11:48,664 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:11:48,664 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:11:48,664 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:11:48,664 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:11:48,697 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147
[2020-09-24 21:11:48,699 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:11:48,712 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:11:48,734 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:11:48,818 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:11:48,818 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 21:11:48,819 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 21:11:48,819 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 118
[2020-09-24 21:11:48,819 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 21:11:48,819 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-24 21:11:48,820 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-24 21:11:48,820 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 21:11:48,820 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:11:48,864 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153
[2020-09-24 21:11:48,869 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:11:48,883 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:11:48,969 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:11:48,969 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 21:11:48,969 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:11:48,969 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 98
[2020-09-24 21:11:48,970 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 21:11:48,970 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-24 21:11:48,970 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-24 21:11:48,970 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 21:11:48,971 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:11:48,998 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177
[2020-09-24 21:11:49,001 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:11:49,017 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:11:49,058 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:11:49,058 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-24 21:11:49,058 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:11:49,058 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 56
[2020-09-24 21:11:49,059 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 21:11:49,059 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:11:49,059 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 12
[2020-09-24 21:11:49,059 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:11:49,060 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:11:49,073 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:11:49,074 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:11:49,086 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:11:49,123 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:11:49,123 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 21:11:49,124 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:11:49,124 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 48
[2020-09-24 21:11:49,124 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 21:11:49,124 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:11:49,124 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:11:49,125 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:11:49,125 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:11:49,192 INFO  L134       CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2020-09-24 21:11:49,193 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1985111983]
[2020-09-24 21:11:49,195 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 21:11:49,195 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-09-24 21:11:49,197 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216270484]
[2020-09-24 21:11:49,205 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-09-24 21:11:49,205 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 21:11:49,223 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-09-24 21:11:49,225 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2020-09-24 21:11:49,228 INFO  L87              Difference]: Start difference. First operand 1099 states. Second operand 7 states.
[2020-09-24 21:11:49,560 WARN  L193               SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2020-09-24 21:11:50,770 WARN  L193               SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 199
[2020-09-24 21:11:51,125 WARN  L193               SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 201
[2020-09-24 21:11:51,455 WARN  L193               SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-24 21:11:51,781 WARN  L193               SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 21:11:57,802 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 21:11:57,802 INFO  L93              Difference]: Finished difference Result 2166 states and 2514 transitions.
[2020-09-24 21:11:57,803 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2020-09-24 21:11:57,805 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 190
[2020-09-24 21:11:57,807 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 21:11:57,835 INFO  L225             Difference]: With dead ends: 2166
[2020-09-24 21:11:57,836 INFO  L226             Difference]: Without dead ends: 1174
[2020-09-24 21:11:57,854 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156
[2020-09-24 21:11:57,882 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1174 states.
[2020-09-24 21:11:58,024 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1174 to 1062.
[2020-09-24 21:11:58,026 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1062 states.
[2020-09-24 21:11:58,033 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1184 transitions.
[2020-09-24 21:11:58,036 INFO  L78                 Accepts]: Start accepts. Automaton has 1062 states and 1184 transitions. Word has length 190
[2020-09-24 21:11:58,038 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 21:11:58,038 INFO  L479      AbstractCegarLoop]: Abstraction has 1062 states and 1184 transitions.
[2020-09-24 21:11:58,038 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-09-24 21:11:58,038 INFO  L276                IsEmpty]: Start isEmpty. Operand 1062 states and 1184 transitions.
[2020-09-24 21:11:58,052 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 199
[2020-09-24 21:11:58,052 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 21:11:58,053 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 21:11:58,053 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 21:11:58,053 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:11:58,056 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:11:58,056 INFO  L82        PathProgramCache]: Analyzing trace with hash -1971199252, now seen corresponding path program 1 times
[2020-09-24 21:11:58,057 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:11:58,057 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2033263802]
[2020-09-24 21:11:58,057 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:11:58,189 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:11:58,302 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:11:58,731 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:11:59,358 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:11:59,358 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 223
[2020-09-24 21:11:59,359 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 21:11:59,359 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1163
[2020-09-24 21:11:59,359 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 21:11:59,359 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:11:59,360 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 75
[2020-09-24 21:11:59,360 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 144
[2020-09-24 21:11:59,360 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:12:00,223 WARN  L193               SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 21:12:00,225 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:12:00,280 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:12:00,342 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:12:00,602 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:12:00,602 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 84
[2020-09-24 21:12:00,602 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:12:00,603 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 321
[2020-09-24 21:12:00,603 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 21:12:00,603 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:12:00,603 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:12:00,604 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 71
[2020-09-24 21:12:00,604 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:12:00,773 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102
[2020-09-24 21:12:00,779 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:12:00,795 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:12:00,867 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:12:00,867 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 17
[2020-09-24 21:12:00,868 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:12:00,868 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 87
[2020-09-24 21:12:00,868 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 21:12:00,874 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:12:00,874 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:12:00,874 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 13
[2020-09-24 21:12:00,875 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 6
[2020-09-24 21:12:00,906 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 21:12:00,913 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:12:00,932 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:12:01,010 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:12:01,010 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 17
[2020-09-24 21:12:01,011 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:12:01,011 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 96
[2020-09-24 21:12:01,011 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 21:12:01,011 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:12:01,011 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:12:01,012 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 13
[2020-09-24 21:12:01,014 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-24 21:12:01,045 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144
[2020-09-24 21:12:01,049 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:12:01,062 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:12:01,099 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:12:01,099 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:12:01,099 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:12:01,099 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 48
[2020-09-24 21:12:01,100 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 21:12:01,100 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:12:01,100 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:12:01,100 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:12:01,101 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:12:01,136 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147
[2020-09-24 21:12:01,146 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:12:01,162 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:12:01,241 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:12:01,241 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 21:12:01,242 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:12:01,242 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 94
[2020-09-24 21:12:01,242 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 21:12:01,242 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:12:01,243 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:12:01,243 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 10
[2020-09-24 21:12:01,243 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:12:01,273 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157
[2020-09-24 21:12:01,280 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:12:01,298 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:12:01,380 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:12:01,380 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 21:12:01,380 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:12:01,381 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 98
[2020-09-24 21:12:01,381 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 21:12:01,381 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:12:01,381 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:12:01,381 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 10
[2020-09-24 21:12:01,382 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:12:01,413 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185
[2020-09-24 21:12:01,418 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:12:01,432 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:12:01,492 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:12:01,493 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-24 21:12:01,493 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:12:01,494 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 73
[2020-09-24 21:12:01,494 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 21:12:01,494 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:12:01,495 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:12:01,495 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-09-24 21:12:01,495 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:12:01,514 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:12:01,515 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:12:01,528 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:12:01,569 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:12:01,570 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 21:12:01,570 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:12:01,571 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 53
[2020-09-24 21:12:01,571 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 21:12:01,571 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:12:01,572 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:12:01,572 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:12:01,573 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:12:01,700 INFO  L134       CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked.
[2020-09-24 21:12:01,701 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2033263802]
[2020-09-24 21:12:01,701 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 21:12:01,701 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-09-24 21:12:01,701 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796555169]
[2020-09-24 21:12:01,705 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-09-24 21:12:01,705 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 21:12:01,705 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-09-24 21:12:01,705 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2020-09-24 21:12:01,706 INFO  L87              Difference]: Start difference. First operand 1062 states and 1184 transitions. Second operand 7 states.
[2020-09-24 21:12:01,957 WARN  L193               SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2020-09-24 21:12:02,718 WARN  L193               SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 200
[2020-09-24 21:12:03,063 WARN  L193               SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-24 21:12:03,533 WARN  L193               SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 194
[2020-09-24 21:12:08,539 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 21:12:08,539 INFO  L93              Difference]: Finished difference Result 1175 states and 1323 transitions.
[2020-09-24 21:12:08,540 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2020-09-24 21:12:08,540 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 198
[2020-09-24 21:12:08,541 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 21:12:08,549 INFO  L225             Difference]: With dead ends: 1175
[2020-09-24 21:12:08,549 INFO  L226             Difference]: Without dead ends: 1172
[2020-09-24 21:12:08,551 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182
[2020-09-24 21:12:08,554 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1172 states.
[2020-09-24 21:12:08,632 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1172 to 1061.
[2020-09-24 21:12:08,632 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1061 states.
[2020-09-24 21:12:08,638 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1182 transitions.
[2020-09-24 21:12:08,638 INFO  L78                 Accepts]: Start accepts. Automaton has 1061 states and 1182 transitions. Word has length 198
[2020-09-24 21:12:08,639 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 21:12:08,639 INFO  L479      AbstractCegarLoop]: Abstraction has 1061 states and 1182 transitions.
[2020-09-24 21:12:08,640 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-09-24 21:12:08,640 INFO  L276                IsEmpty]: Start isEmpty. Operand 1061 states and 1182 transitions.
[2020-09-24 21:12:08,643 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 200
[2020-09-24 21:12:08,643 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 21:12:08,644 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 21:12:08,644 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 21:12:08,644 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:12:08,644 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:12:08,644 INFO  L82        PathProgramCache]: Analyzing trace with hash -978144985, now seen corresponding path program 1 times
[2020-09-24 21:12:08,645 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:12:08,645 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1383106045]
[2020-09-24 21:12:08,645 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:12:08,747 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:12:08,874 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:12:09,249 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:12:09,792 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:12:09,793 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 224
[2020-09-24 21:12:09,793 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 21:12:09,793 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1042
[2020-09-24 21:12:09,793 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 21:12:09,794 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:12:09,794 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 76
[2020-09-24 21:12:09,794 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 144
[2020-09-24 21:12:09,794 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:12:10,540 WARN  L193               SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 21:12:10,541 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:12:10,589 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:12:10,690 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:12:10,940 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:12:10,940 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 84
[2020-09-24 21:12:10,940 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:12:10,941 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 349
[2020-09-24 21:12:10,941 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 21:12:10,941 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:12:10,941 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:12:10,941 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 72
[2020-09-24 21:12:10,941 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:12:11,093 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102
[2020-09-24 21:12:11,099 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:12:11,115 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:12:11,184 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:12:11,184 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 17
[2020-09-24 21:12:11,185 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:12:11,185 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 84
[2020-09-24 21:12:11,185 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 21:12:11,186 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:12:11,186 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:12:11,186 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 13
[2020-09-24 21:12:11,187 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:12:11,213 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 21:12:11,218 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:12:11,232 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:12:11,296 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:12:11,297 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 17
[2020-09-24 21:12:11,297 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:12:11,297 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 77
[2020-09-24 21:12:11,297 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 21:12:11,298 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:12:11,298 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:12:11,298 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 13
[2020-09-24 21:12:11,298 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:12:11,323 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144
[2020-09-24 21:12:11,327 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:12:11,336 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:12:11,371 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:12:11,371 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:12:11,372 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:12:11,372 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 44
[2020-09-24 21:12:11,372 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 21:12:11,372 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:12:11,372 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:12:11,373 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:12:11,373 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:12:11,409 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147
[2020-09-24 21:12:11,415 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:12:11,431 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:12:11,512 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:12:11,512 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 21:12:11,513 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:12:11,513 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 96
[2020-09-24 21:12:11,513 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 21:12:11,513 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:12:11,513 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:12:11,514 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 10
[2020-09-24 21:12:11,514 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:12:11,543 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157
[2020-09-24 21:12:11,550 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:12:11,578 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:12:11,650 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:12:11,651 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 21:12:11,651 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:12:11,651 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 99
[2020-09-24 21:12:11,651 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 21:12:11,651 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:12:11,652 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:12:11,652 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 10
[2020-09-24 21:12:11,656 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:12:11,685 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185
[2020-09-24 21:12:11,689 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:12:11,702 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:12:11,761 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:12:11,761 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-24 21:12:11,761 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:12:11,761 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 71
[2020-09-24 21:12:11,762 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 21:12:11,762 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:12:11,762 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:12:11,762 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-09-24 21:12:11,762 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:12:11,778 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:12:11,779 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:12:11,789 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:12:11,822 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:12:11,822 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 21:12:11,822 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:12:11,822 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 42
[2020-09-24 21:12:11,823 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 21:12:11,823 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:12:11,823 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:12:11,823 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:12:11,823 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:12:11,930 INFO  L134       CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked.
[2020-09-24 21:12:11,931 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1383106045]
[2020-09-24 21:12:11,931 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 21:12:11,931 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-09-24 21:12:11,933 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641820368]
[2020-09-24 21:12:11,937 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-09-24 21:12:11,937 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 21:12:11,937 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-09-24 21:12:11,937 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2020-09-24 21:12:11,938 INFO  L87              Difference]: Start difference. First operand 1061 states and 1182 transitions. Second operand 7 states.
[2020-09-24 21:12:12,231 WARN  L193               SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2020-09-24 21:12:13,081 WARN  L193               SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 200
[2020-09-24 21:12:13,488 WARN  L193               SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-24 21:12:14,099 WARN  L193               SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 194
[2020-09-24 21:12:19,234 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 21:12:19,234 INFO  L93              Difference]: Finished difference Result 1174 states and 1321 transitions.
[2020-09-24 21:12:19,235 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2020-09-24 21:12:19,235 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 199
[2020-09-24 21:12:19,236 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 21:12:19,242 INFO  L225             Difference]: With dead ends: 1174
[2020-09-24 21:12:19,243 INFO  L226             Difference]: Without dead ends: 1171
[2020-09-24 21:12:19,243 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182
[2020-09-24 21:12:19,246 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1171 states.
[2020-09-24 21:12:19,318 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1171 to 1060.
[2020-09-24 21:12:19,318 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1060 states.
[2020-09-24 21:12:19,324 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1060 states to 1060 states and 1180 transitions.
[2020-09-24 21:12:19,324 INFO  L78                 Accepts]: Start accepts. Automaton has 1060 states and 1180 transitions. Word has length 199
[2020-09-24 21:12:19,325 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 21:12:19,325 INFO  L479      AbstractCegarLoop]: Abstraction has 1060 states and 1180 transitions.
[2020-09-24 21:12:19,325 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-09-24 21:12:19,325 INFO  L276                IsEmpty]: Start isEmpty. Operand 1060 states and 1180 transitions.
[2020-09-24 21:12:19,328 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 201
[2020-09-24 21:12:19,328 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 21:12:19,328 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 21:12:19,328 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 21:12:19,329 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 21:12:19,329 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 21:12:19,329 INFO  L82        PathProgramCache]: Analyzing trace with hash -258228913, now seen corresponding path program 1 times
[2020-09-24 21:12:19,329 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 21:12:19,330 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1757494360]
[2020-09-24 21:12:19,330 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 21:12:19,417 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:12:19,504 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:12:19,821 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:12:20,376 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:12:20,376 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 225
[2020-09-24 21:12:20,376 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 21:12:20,376 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 956
[2020-09-24 21:12:20,377 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 21:12:20,377 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:12:20,377 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 77
[2020-09-24 21:12:20,377 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 144
[2020-09-24 21:12:20,377 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:12:20,927 WARN  L193               SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 21:12:20,935 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:12:20,994 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:12:21,042 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:12:21,302 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:12:21,303 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 84
[2020-09-24 21:12:21,303 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:12:21,303 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 307
[2020-09-24 21:12:21,303 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 21:12:21,303 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:12:21,304 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:12:21,304 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 73
[2020-09-24 21:12:21,304 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:12:21,400 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102
[2020-09-24 21:12:21,405 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:12:21,416 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:12:21,459 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:12:21,459 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 17
[2020-09-24 21:12:21,459 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:12:21,459 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 52
[2020-09-24 21:12:21,459 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 21:12:21,460 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:12:21,460 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:12:21,460 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 13
[2020-09-24 21:12:21,460 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:12:21,484 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 21:12:21,489 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:12:21,500 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:12:21,550 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:12:21,551 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 17
[2020-09-24 21:12:21,551 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:12:21,551 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 60
[2020-09-24 21:12:21,551 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 21:12:21,551 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:12:21,552 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:12:21,552 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 13
[2020-09-24 21:12:21,552 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:12:21,575 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144
[2020-09-24 21:12:21,578 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:12:21,588 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:12:21,607 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:12:21,607 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 21:12:21,607 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:12:21,608 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 28
[2020-09-24 21:12:21,608 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 21:12:21,608 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:12:21,608 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:12:21,608 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 21:12:21,609 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:12:21,633 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147
[2020-09-24 21:12:21,639 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:12:21,652 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:12:21,718 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:12:21,719 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 21:12:21,719 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:12:21,719 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 79
[2020-09-24 21:12:21,719 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 21:12:21,719 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:12:21,720 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:12:21,720 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 10
[2020-09-24 21:12:21,720 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:12:21,744 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157
[2020-09-24 21:12:21,749 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:12:21,760 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:12:21,823 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:12:21,823 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 21:12:21,824 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:12:21,824 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 73
[2020-09-24 21:12:21,824 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 21:12:21,824 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:12:21,824 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:12:21,824 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 10
[2020-09-24 21:12:21,825 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 21:12:21,849 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185
[2020-09-24 21:12:21,852 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:12:21,863 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:12:21,909 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:12:21,910 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-24 21:12:21,910 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:12:21,910 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 56
[2020-09-24 21:12:21,910 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 21:12:21,911 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 21:12:21,911 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:12:21,911 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-09-24 21:12:21,912 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:12:21,928 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 21:12:21,929 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 21:12:21,940 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 21:12:21,972 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 21:12:21,973 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 21:12:21,973 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 21:12:21,973 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 42
[2020-09-24 21:12:21,974 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 21:12:21,974 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 21:12:21,974 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 21:12:21,975 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 21:12:21,975 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 21:12:22,063 INFO  L134       CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked.
[2020-09-24 21:12:22,064 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1757494360]
[2020-09-24 21:12:22,065 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 21:12:22,066 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-24 21:12:22,066 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188212349]
[2020-09-24 21:12:22,066 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-24 21:12:22,067 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 21:12:22,067 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-24 21:12:22,067 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2020-09-24 21:12:22,068 INFO  L87              Difference]: Start difference. First operand 1060 states and 1180 transitions. Second operand 6 states.
[2020-09-24 21:12:22,309 WARN  L193               SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2020-09-24 21:12:22,907 WARN  L193               SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 198
[2020-09-24 21:12:23,215 WARN  L193               SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 21:12:23,798 WARN  L193               SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 192