/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 interpolation-heuristic=FIRST --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-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 16:39:30,799 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 16:39:30,803 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 16:39:30,846 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 16:39:30,847 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 16:39:30,855 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 16:39:30,857 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 16:39:30,861 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 16:39:30,864 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 16:39:30,867 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 16:39:30,868 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 16:39:30,869 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 16:39:30,869 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 16:39:30,872 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 16:39:30,875 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 16:39:30,877 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 16:39:30,879 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 16:39:30,880 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 16:39:30,881 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 16:39:30,890 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 16:39:30,892 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 16:39:30,893 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 16:39:30,895 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 16:39:30,896 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 16:39:30,908 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 16:39:30,913 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 16:39:30,913 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 16:39:30,914 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 16:39:30,918 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 16:39:30,919 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 16:39:30,919 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 16:39:30,923 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 16:39:30,924 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 16:39:30,924 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 16:39:30,926 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 16:39:30,926 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 16:39:30,927 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 16:39:30,927 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 16:39:30,927 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 16:39:30,928 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 16:39:30,929 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 16:39:30,930 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 16:39:30,966 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 16:39:30,966 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 16:39:30,967 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 16:39:30,968 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 16:39:30,968 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 16:39:30,968 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 16:39:30,968 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 16:39:30,968 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 16:39:30,969 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 16:39:30,969 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 16:39:30,969 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 16:39:30,969 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 16:39:30,969 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 16:39:30,970 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 16:39:30,970 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 16:39:30,970 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 16:39:30,970 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 16:39:30,970 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 16:39:30,971 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:39:30,971 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 16:39:30,971 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 16:39:30,971 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 16:39:30,971 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 16:39:30,972 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 16:39:30,972 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 16:39:30,972 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 16:39:30,972 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2020-09-24 16:39:30,972 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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true;
[2020-09-24 16:39:31,466 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 16:39:31,484 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 16:39:31,488 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 16:39:31,490 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 16:39:31,491 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 16:39:31,492 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i
[2020-09-24 16:39:31,580 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f30f70d5/fa1a42ce9471469ca3029baa1a226327/FLAGe0c949a72
[2020-09-24 16:39:32,549 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 16:39:32,550 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i
[2020-09-24 16:39:32,584 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f30f70d5/fa1a42ce9471469ca3029baa1a226327/FLAGe0c949a72
[2020-09-24 16:39:33,012 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f30f70d5/fa1a42ce9471469ca3029baa1a226327
[2020-09-24 16:39:33,026 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 16:39:33,032 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 16:39:33,033 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 16:39:33,033 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 16:39:33,038 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 16:39:33,039 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:39:33" (1/1) ...
[2020-09-24 16:39:33,043 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f71ec06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:33, skipping insertion in model container
[2020-09-24 16:39:33,044 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:39:33" (1/1) ...
[2020-09-24 16:39:33,053 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 16:39:33,166 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 16:39:34,758 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:39:34,801 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 16:39:35,074 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:39:35,184 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 16:39:35,186 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:35 WrapperNode
[2020-09-24 16:39:35,186 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 16:39:35,188 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 16:39:35,188 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 16:39:35,188 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 16:39:35,208 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:35" (1/1) ...
[2020-09-24 16:39:35,208 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:35" (1/1) ...
[2020-09-24 16:39:35,282 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:35" (1/1) ...
[2020-09-24 16:39:35,283 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:35" (1/1) ...
[2020-09-24 16:39:35,367 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:35" (1/1) ...
[2020-09-24 16:39:35,380 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:35" (1/1) ...
[2020-09-24 16:39:35,393 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:35" (1/1) ...
[2020-09-24 16:39:35,410 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 16:39:35,411 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 16:39:35,411 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 16:39:35,411 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 16:39:35,412 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:35" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:39:35,490 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 16:39:35,491 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 16:39:35,491 INFO  L138     BoogieDeclarations]: Found implementation of procedure __arch_swab32
[2020-09-24 16:39:35,491 INFO  L138     BoogieDeclarations]: Found implementation of procedure __fswab32
[2020-09-24 16:39:35,491 INFO  L138     BoogieDeclarations]: Found implementation of procedure __swab32p
[2020-09-24 16:39:35,492 INFO  L138     BoogieDeclarations]: Found implementation of procedure __le32_to_cpup
[2020-09-24 16:39:35,492 INFO  L138     BoogieDeclarations]: Found implementation of procedure __le16_to_cpup
[2020-09-24 16:39:35,492 INFO  L138     BoogieDeclarations]: Found implementation of procedure __be32_to_cpup
[2020-09-24 16:39:35,492 INFO  L138     BoogieDeclarations]: Found implementation of procedure atomic_read
[2020-09-24 16:39:35,493 INFO  L138     BoogieDeclarations]: Found implementation of procedure dev_set_drvdata
[2020-09-24 16:39:35,493 INFO  L138     BoogieDeclarations]: Found implementation of procedure skb_end_pointer
[2020-09-24 16:39:35,493 INFO  L138     BoogieDeclarations]: Found implementation of procedure skb_cloned
[2020-09-24 16:39:35,493 INFO  L138     BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear
[2020-09-24 16:39:35,494 INFO  L138     BoogieDeclarations]: Found implementation of procedure skb_reset_tail_pointer
[2020-09-24 16:39:35,494 INFO  L138     BoogieDeclarations]: Found implementation of procedure skb_set_tail_pointer
[2020-09-24 16:39:35,494 INFO  L138     BoogieDeclarations]: Found implementation of procedure skb_headroom
[2020-09-24 16:39:35,494 INFO  L138     BoogieDeclarations]: Found implementation of procedure skb_tailroom
[2020-09-24 16:39:35,494 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2020-09-24 16:39:35,495 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_malloc
[2020-09-24 16:39:35,495 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_zalloc
[2020-09-24 16:39:35,495 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_undef_int
[2020-09-24 16:39:35,495 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong
[2020-09-24 16:39:35,495 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_error
[2020-09-24 16:39:35,496 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_stop
[2020-09-24 16:39:35,496 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect
[2020-09-24 16:39:35,496 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap
[2020-09-24 16:39:35,496 INFO  L138     BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any
[2020-09-24 16:39:35,496 INFO  L138     BoogieDeclarations]: Found implementation of procedure get_unaligned_le16
[2020-09-24 16:39:35,496 INFO  L138     BoogieDeclarations]: Found implementation of procedure get_unaligned_le32
[2020-09-24 16:39:35,497 INFO  L138     BoogieDeclarations]: Found implementation of procedure get_unaligned_be32
[2020-09-24 16:39:35,497 INFO  L138     BoogieDeclarations]: Found implementation of procedure put_unaligned_le16
[2020-09-24 16:39:35,497 INFO  L138     BoogieDeclarations]: Found implementation of procedure put_unaligned_le32
[2020-09-24 16:39:35,497 INFO  L138     BoogieDeclarations]: Found implementation of procedure usb_set_intfdata
[2020-09-24 16:39:35,497 INFO  L138     BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb
[2020-09-24 16:39:35,498 INFO  L138     BoogieDeclarations]: Found implementation of procedure driver_of
[2020-09-24 16:39:35,498 INFO  L138     BoogieDeclarations]: Found implementation of procedure eem_linkcmd_complete
[2020-09-24 16:39:35,498 INFO  L138     BoogieDeclarations]: Found implementation of procedure eem_linkcmd
[2020-09-24 16:39:35,498 INFO  L138     BoogieDeclarations]: Found implementation of procedure eem_bind
[2020-09-24 16:39:35,498 INFO  L138     BoogieDeclarations]: Found implementation of procedure eem_tx_fixup
[2020-09-24 16:39:35,498 INFO  L138     BoogieDeclarations]: Found implementation of procedure eem_rx_fixup
[2020-09-24 16:39:35,499 INFO  L138     BoogieDeclarations]: Found implementation of procedure eem_driver_init
[2020-09-24 16:39:35,499 INFO  L138     BoogieDeclarations]: Found implementation of procedure eem_driver_exit
[2020-09-24 16:39:35,499 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_initialize_driver_info_2
[2020-09-24 16:39:35,499 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1
[2020-09-24 16:39:35,499 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 16:39:35,500 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5
[2020-09-24 16:39:35,500 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6
[2020-09-24 16:39:35,500 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7
[2020-09-24 16:39:35,500 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8
[2020-09-24 16:39:35,500 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11
[2020-09-24 16:39:35,501 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_12
[2020-09-24 16:39:35,501 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_13
[2020-09-24 16:39:35,501 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_set_init
[2020-09-24 16:39:35,501 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_set_add
[2020-09-24 16:39:35,501 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_set_remove
[2020-09-24 16:39:35,501 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_set_contains
[2020-09-24 16:39:35,502 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty
[2020-09-24 16:39:35,502 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_is_err
[2020-09-24 16:39:35,502 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_err_ptr
[2020-09-24 16:39:35,502 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_ptr_err
[2020-09-24 16:39:35,502 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null
[2020-09-24 16:39:35,503 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc
[2020-09-24 16:39:35,503 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_initialize
[2020-09-24 16:39:35,503 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_skb_free
[2020-09-24 16:39:35,503 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int
[2020-09-24 16:39:35,503 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb
[2020-09-24 16:39:35,503 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb
[2020-09-24 16:39:35,504 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_skb_current
[2020-09-24 16:39:35,504 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_check_final_state
[2020-09-24 16:39:35,504 INFO  L138     BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any
[2020-09-24 16:39:35,504 INFO  L138     BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg
[2020-09-24 16:39:35,504 INFO  L138     BoogieDeclarations]: Found implementation of procedure crc32_le
[2020-09-24 16:39:35,505 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_release_2
[2020-09-24 16:39:35,505 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_reset_resume_1
[2020-09-24 16:39:35,505 INFO  L138     BoogieDeclarations]: Found implementation of procedure netdev_warn
[2020-09-24 16:39:35,505 INFO  L138     BoogieDeclarations]: Found implementation of procedure skb_clone
[2020-09-24 16:39:35,505 INFO  L138     BoogieDeclarations]: Found implementation of procedure skb_copy_expand
[2020-09-24 16:39:35,506 INFO  L138     BoogieDeclarations]: Found implementation of procedure skb_pull
[2020-09-24 16:39:35,506 INFO  L138     BoogieDeclarations]: Found implementation of procedure skb_push
[2020-09-24 16:39:35,506 INFO  L138     BoogieDeclarations]: Found implementation of procedure skb_put
[2020-09-24 16:39:35,506 INFO  L138     BoogieDeclarations]: Found implementation of procedure skb_trim
[2020-09-24 16:39:35,506 INFO  L138     BoogieDeclarations]: Found implementation of procedure usb_alloc_urb
[2020-09-24 16:39:35,507 INFO  L138     BoogieDeclarations]: Found implementation of procedure usb_deregister
[2020-09-24 16:39:35,507 INFO  L138     BoogieDeclarations]: Found implementation of procedure usb_driver_release_interface
[2020-09-24 16:39:35,507 INFO  L138     BoogieDeclarations]: Found implementation of procedure usb_free_urb
[2020-09-24 16:39:35,507 INFO  L138     BoogieDeclarations]: Found implementation of procedure usb_register_driver
[2020-09-24 16:39:35,507 INFO  L138     BoogieDeclarations]: Found implementation of procedure usb_submit_urb
[2020-09-24 16:39:35,507 INFO  L138     BoogieDeclarations]: Found implementation of procedure usbnet_device_suggests_idle
[2020-09-24 16:39:35,508 INFO  L138     BoogieDeclarations]: Found implementation of procedure usbnet_disconnect
[2020-09-24 16:39:35,508 INFO  L138     BoogieDeclarations]: Found implementation of procedure usbnet_get_endpoints
[2020-09-24 16:39:35,508 INFO  L138     BoogieDeclarations]: Found implementation of procedure usbnet_probe
[2020-09-24 16:39:35,508 INFO  L138     BoogieDeclarations]: Found implementation of procedure usbnet_resume
[2020-09-24 16:39:35,509 INFO  L138     BoogieDeclarations]: Found implementation of procedure usbnet_skb_return
[2020-09-24 16:39:35,509 INFO  L138     BoogieDeclarations]: Found implementation of procedure usbnet_suspend
[2020-09-24 16:39:35,509 INFO  L138     BoogieDeclarations]: Found implementation of procedure kfree
[2020-09-24 16:39:35,509 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset
[2020-09-24 16:39:35,509 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit
[2020-09-24 16:39:35,510 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove
[2020-09-24 16:39:35,510 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 16:39:35,510 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv__builtin_expect
[2020-09-24 16:39:35,510 INFO  L130     BoogieDeclarations]: Found specification of procedure __arch_swab32
[2020-09-24 16:39:35,510 INFO  L130     BoogieDeclarations]: Found specification of procedure __fswab32
[2020-09-24 16:39:35,511 INFO  L130     BoogieDeclarations]: Found specification of procedure __swab32p
[2020-09-24 16:39:35,511 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 16:39:35,511 INFO  L130     BoogieDeclarations]: Found specification of procedure __le32_to_cpup
[2020-09-24 16:39:35,511 INFO  L130     BoogieDeclarations]: Found specification of procedure __le16_to_cpup
[2020-09-24 16:39:35,511 INFO  L130     BoogieDeclarations]: Found specification of procedure __be32_to_cpup
[2020-09-24 16:39:35,512 INFO  L130     BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg
[2020-09-24 16:39:35,512 INFO  L130     BoogieDeclarations]: Found specification of procedure memset
[2020-09-24 16:39:35,512 INFO  L130     BoogieDeclarations]: Found specification of procedure memmove
[2020-09-24 16:39:35,512 INFO  L130     BoogieDeclarations]: Found specification of procedure atomic_read
[2020-09-24 16:39:35,512 INFO  L130     BoogieDeclarations]: Found specification of procedure dev_set_drvdata
[2020-09-24 16:39:35,513 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 16:39:35,513 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6
[2020-09-24 16:39:35,513 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7
[2020-09-24 16:39:35,513 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8
[2020-09-24 16:39:35,513 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11
[2020-09-24 16:39:35,514 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5
[2020-09-24 16:39:35,514 INFO  L130     BoogieDeclarations]: Found specification of procedure skb_clone
[2020-09-24 16:39:35,514 INFO  L130     BoogieDeclarations]: Found specification of procedure skb_copy_expand
[2020-09-24 16:39:35,514 INFO  L130     BoogieDeclarations]: Found specification of procedure skb_end_pointer
[2020-09-24 16:39:35,514 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 16:39:35,515 INFO  L130     BoogieDeclarations]: Found specification of procedure skb_cloned
[2020-09-24 16:39:35,515 INFO  L130     BoogieDeclarations]: Found specification of procedure skb_is_nonlinear
[2020-09-24 16:39:35,515 INFO  L130     BoogieDeclarations]: Found specification of procedure skb_reset_tail_pointer
[2020-09-24 16:39:35,515 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 16:39:35,515 INFO  L130     BoogieDeclarations]: Found specification of procedure skb_set_tail_pointer
[2020-09-24 16:39:35,516 INFO  L130     BoogieDeclarations]: Found specification of procedure skb_put
[2020-09-24 16:39:35,516 INFO  L130     BoogieDeclarations]: Found specification of procedure skb_push
[2020-09-24 16:39:35,516 INFO  L130     BoogieDeclarations]: Found specification of procedure skb_pull
[2020-09-24 16:39:35,516 INFO  L130     BoogieDeclarations]: Found specification of procedure skb_headroom
[2020-09-24 16:39:35,516 INFO  L130     BoogieDeclarations]: Found specification of procedure skb_tailroom
[2020-09-24 16:39:35,517 INFO  L130     BoogieDeclarations]: Found specification of procedure skb_trim
[2020-09-24 16:39:35,517 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_skb_free
[2020-09-24 16:39:35,517 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 16:39:35,517 INFO  L130     BoogieDeclarations]: Found specification of procedure calloc
[2020-09-24 16:39:35,517 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 16:39:35,517 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong
[2020-09-24 16:39:35,518 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2020-09-24 16:39:35,518 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2020-09-24 16:39:35,518 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_malloc
[2020-09-24 16:39:35,518 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 16:39:35,518 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_zalloc
[2020-09-24 16:39:35,519 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.meminit
[2020-09-24 16:39:35,519 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_undef_int
[2020-09-24 16:39:35,519 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_undef_ulong
[2020-09-24 16:39:35,519 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_error
[2020-09-24 16:39:35,519 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_stop
[2020-09-24 16:39:35,520 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv__builtin_trap
[2020-09-24 16:39:35,520 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_initialize_driver_info_2
[2020-09-24 16:39:35,520 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1
[2020-09-24 16:39:35,521 INFO  L130     BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any
[2020-09-24 16:39:35,521 INFO  L130     BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any
[2020-09-24 16:39:35,521 INFO  L130     BoogieDeclarations]: Found specification of procedure netdev_warn
[2020-09-24 16:39:35,521 INFO  L130     BoogieDeclarations]: Found specification of procedure get_unaligned_le16
[2020-09-24 16:39:35,521 INFO  L130     BoogieDeclarations]: Found specification of procedure get_unaligned_le32
[2020-09-24 16:39:35,522 INFO  L130     BoogieDeclarations]: Found specification of procedure get_unaligned_be32
[2020-09-24 16:39:35,522 INFO  L130     BoogieDeclarations]: Found specification of procedure put_unaligned_le16
[2020-09-24 16:39:35,522 INFO  L130     BoogieDeclarations]: Found specification of procedure put_unaligned_le32
[2020-09-24 16:39:35,522 INFO  L130     BoogieDeclarations]: Found specification of procedure usb_set_intfdata
[2020-09-24 16:39:35,522 INFO  L130     BoogieDeclarations]: Found specification of procedure usb_driver_release_interface
[2020-09-24 16:39:35,522 INFO  L130     BoogieDeclarations]: Found specification of procedure usb_register_driver
[2020-09-24 16:39:35,522 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_12
[2020-09-24 16:39:35,522 INFO  L130     BoogieDeclarations]: Found specification of procedure usb_deregister
[2020-09-24 16:39:35,523 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_13
[2020-09-24 16:39:35,523 INFO  L130     BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb
[2020-09-24 16:39:35,523 INFO  L130     BoogieDeclarations]: Found specification of procedure usb_alloc_urb
[2020-09-24 16:39:35,523 INFO  L130     BoogieDeclarations]: Found specification of procedure usb_free_urb
[2020-09-24 16:39:35,523 INFO  L130     BoogieDeclarations]: Found specification of procedure usb_submit_urb
[2020-09-24 16:39:35,523 INFO  L130     BoogieDeclarations]: Found specification of procedure crc32_le
[2020-09-24 16:39:35,523 INFO  L130     BoogieDeclarations]: Found specification of procedure driver_of
[2020-09-24 16:39:35,524 INFO  L130     BoogieDeclarations]: Found specification of procedure usbnet_probe
[2020-09-24 16:39:35,527 INFO  L130     BoogieDeclarations]: Found specification of procedure usbnet_suspend
[2020-09-24 16:39:35,527 INFO  L130     BoogieDeclarations]: Found specification of procedure usbnet_resume
[2020-09-24 16:39:35,527 INFO  L130     BoogieDeclarations]: Found specification of procedure usbnet_disconnect
[2020-09-24 16:39:35,527 INFO  L130     BoogieDeclarations]: Found specification of procedure usbnet_device_suggests_idle
[2020-09-24 16:39:35,528 INFO  L130     BoogieDeclarations]: Found specification of procedure usbnet_get_endpoints
[2020-09-24 16:39:35,528 INFO  L130     BoogieDeclarations]: Found specification of procedure usbnet_skb_return
[2020-09-24 16:39:35,528 INFO  L130     BoogieDeclarations]: Found specification of procedure eem_linkcmd_complete
[2020-09-24 16:39:35,528 INFO  L130     BoogieDeclarations]: Found specification of procedure eem_linkcmd
[2020-09-24 16:39:35,528 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 16:39:35,528 INFO  L130     BoogieDeclarations]: Found specification of procedure eem_bind
[2020-09-24 16:39:35,529 INFO  L130     BoogieDeclarations]: Found specification of procedure eem_tx_fixup
[2020-09-24 16:39:35,529 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove
[2020-09-24 16:39:35,529 INFO  L130     BoogieDeclarations]: Found specification of procedure eem_rx_fixup
[2020-09-24 16:39:35,529 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 16:39:35,529 INFO  L130     BoogieDeclarations]: Found specification of procedure eem_driver_init
[2020-09-24 16:39:35,530 INFO  L130     BoogieDeclarations]: Found specification of procedure eem_driver_exit
[2020-09-24 16:39:35,530 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_reset_resume_1
[2020-09-24 16:39:35,530 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_release_2
[2020-09-24 16:39:35,530 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_initialize
[2020-09-24 16:39:35,530 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_check_final_state
[2020-09-24 16:39:35,531 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 16:39:35,531 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset
[2020-09-24 16:39:35,531 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_set_init
[2020-09-24 16:39:35,531 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_set_add
[2020-09-24 16:39:35,531 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_set_remove
[2020-09-24 16:39:35,531 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_set_contains
[2020-09-24 16:39:35,532 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_set_is_empty
[2020-09-24 16:39:35,532 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_is_err
[2020-09-24 16:39:35,532 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_err_ptr
[2020-09-24 16:39:35,532 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_ptr_err
[2020-09-24 16:39:35,532 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null
[2020-09-24 16:39:35,532 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_skb_alloc
[2020-09-24 16:39:35,533 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_skb_free_int
[2020-09-24 16:39:35,533 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb
[2020-09-24 16:39:35,533 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb
[2020-09-24 16:39:35,533 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_skb_current
[2020-09-24 16:39:35,533 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint
[2020-09-24 16:39:35,534 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 16:39:35,534 INFO  L130     BoogieDeclarations]: Found specification of procedure kfree
[2020-09-24 16:39:35,534 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 16:39:35,534 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$
[2020-09-24 16:39:35,534 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 16:39:35,535 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int
[2020-09-24 16:39:35,535 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 16:39:35,535 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$
[2020-09-24 16:39:35,535 INFO  L130     BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$
[2020-09-24 16:39:35,535 INFO  L130     BoogieDeclarations]: Found specification of procedure read~unchecked~int
[2020-09-24 16:39:36,208 INFO  L732   $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true;
[2020-09-24 16:39:37,562 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 16:39:37,563 INFO  L295             CfgBuilder]: Removed 4 assume(true) statements.
[2020-09-24 16:39:37,579 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:39:37 BoogieIcfgContainer
[2020-09-24 16:39:37,579 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 16:39:37,582 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 16:39:37,582 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 16:39:37,586 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 16:39:37,586 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:39:33" (1/3) ...
[2020-09-24 16:39:37,587 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29149990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:39:37, skipping insertion in model container
[2020-09-24 16:39:37,588 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:35" (2/3) ...
[2020-09-24 16:39:37,588 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29149990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:39:37, skipping insertion in model container
[2020-09-24 16:39:37,589 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:39:37" (3/3) ...
[2020-09-24 16:39:37,590 INFO  L109   eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i
[2020-09-24 16:39:37,599 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 16:39:37,611 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 16:39:37,633 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 16:39:37,670 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 16:39:37,670 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 16:39:37,670 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 16:39:37,670 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 16:39:37,670 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 16:39:37,671 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 16:39:37,671 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 16:39:37,671 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 16:39:37,712 INFO  L276                IsEmpty]: Start isEmpty. Operand 1198 states.
[2020-09-24 16:39:37,733 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 231
[2020-09-24 16:39:37,733 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:39:37,735 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 16:39:37,735 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:39:37,743 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:39:37,744 INFO  L82        PathProgramCache]: Analyzing trace with hash -410682460, now seen corresponding path program 1 times
[2020-09-24 16:39:37,755 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:39:37,755 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1038130916]
[2020-09-24 16:39:37,756 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:39:38,409 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:39:38,450 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:39:38,450 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:39:38,450 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:39:38,451 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:39:38,455 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 261
[2020-09-24 16:39:38,455 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:39:38,455 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 28
[2020-09-24 16:39:38,456 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:39:38,456 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-24 16:39:38,456 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 190
[2020-09-24 16:39:38,456 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:39:38,456 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:39:39,040 WARN  L193               SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 208
[2020-09-24 16:39:39,043 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:39:39,066 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:39:39,069 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:39:39,069 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:39:39,069 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:39:39,076 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:39:39,076 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 129
[2020-09-24 16:39:39,076 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:39:39,076 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 16:39:39,077 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:39:39,077 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:39:39,077 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:39:39,077 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:39:39,077 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:39:39,248 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135
[2020-09-24 16:39:39,250 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:39:39,252 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:39:39,252 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:39:39,252 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:39:39,252 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:39:39,253 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 17
[2020-09-24 16:39:39,253 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:39:39,253 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:39:39,253 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:39:39,253 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:39:39,254 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:39:39,254 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:39:39,254 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:39:39,274 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-24 16:39:39,276 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:39:39,277 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:39:39,278 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:39:39,278 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:39:39,278 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:39:39,278 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 17
[2020-09-24 16:39:39,279 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:39:39,279 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:39:39,279 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:39:39,280 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:39:39,280 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:39:39,280 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:39:39,280 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:39:39,307 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165
[2020-09-24 16:39:39,309 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:39:39,310 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:39:39,310 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:39:39,310 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:39:39,310 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:39:39,311 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 16
[2020-09-24 16:39:39,311 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:39:39,311 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:39:39,311 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:39:39,312 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:39:39,312 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:39:39,312 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:39:39,312 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:39:39,323 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:39:39,324 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:39:39,325 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:39:39,326 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:39:39,326 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:39:39,326 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:39:39,326 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:39:39,327 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:39:39,327 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:39:39,327 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:39:39,328 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:39:39,328 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:39:39,328 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:39:39,328 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:39:39,360 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174
[2020-09-24 16:39:39,365 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:39:39,369 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:39:39,369 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:39:39,369 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:39:39,370 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:39:39,370 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 16:39:39,370 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:39:39,371 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:39:39,371 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:39:39,371 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-24 16:39:39,371 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-24 16:39:39,372 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 16:39:39,372 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:39:39,411 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180
[2020-09-24 16:39:39,414 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:39:39,415 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:39:39,415 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:39:39,416 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:39:39,416 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:39:39,416 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 16:39:39,473 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:39:39,473 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:39:39,473 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:39:39,474 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:39:39,476 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 7
[2020-09-24 16:39:39,476 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:39:39,476 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 16:39:39,518 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204
[2020-09-24 16:39:39,522 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:39:39,524 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:39:39,524 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:39:39,524 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:39:39,524 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:39:39,525 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 21
[2020-09-24 16:39:39,525 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:39:39,525 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:39:39,525 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:39:39,525 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:39:39,526 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 18
[2020-09-24 16:39:39,526 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:39:39,526 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:39:39,544 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:39:39,546 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:39:39,547 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:39:39,547 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:39:39,547 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:39:39,549 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:39:39,551 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 16
[2020-09-24 16:39:39,551 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:39:39,551 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:39:39,551 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:39:39,552 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:39:39,552 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:39:39,552 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:39:39,552 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:39:39,566 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-09-24 16:39:39,567 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:39:39,570 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:39:39,570 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:39:39,570 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:39:39,571 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:39:39,571 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 16:39:39,572 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:39:39,572 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:39:39,574 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:39:39,574 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:39:39,574 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:39:39,574 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:39:39,575 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:39:39,587 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219
[2020-09-24 16:39:39,589 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:39:39,590 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:39:39,590 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:39:39,591 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:39:39,591 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:39:39,591 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 16:39:39,591 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:39:39,592 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:39:39,592 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:39:39,592 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:39:39,592 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 7
[2020-09-24 16:39:39,592 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:39:39,593 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:39:39,678 INFO  L134       CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2020-09-24 16:39:39,679 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1038130916]
[2020-09-24 16:39:39,681 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-24 16:39:39,681 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9
[2020-09-24 16:39:39,682 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488825326]
[2020-09-24 16:39:39,689 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-24 16:39:39,689 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:39:39,707 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-24 16:39:39,708 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72
[2020-09-24 16:39:39,710 INFO  L87              Difference]: Start difference. First operand 1198 states. Second operand 9 states.
[2020-09-24 16:39:41,380 WARN  L193               SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 211
[2020-09-24 16:39:41,738 WARN  L193               SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 213
[2020-09-24 16:39:51,240 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:39:51,241 INFO  L93              Difference]: Finished difference Result 2585 states and 3000 transitions.
[2020-09-24 16:39:51,242 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. 
[2020-09-24 16:39:51,243 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 230
[2020-09-24 16:39:51,245 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:39:51,274 INFO  L225             Difference]: With dead ends: 2585
[2020-09-24 16:39:51,274 INFO  L226             Difference]: Without dead ends: 1559
[2020-09-24 16:39:51,287 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=120, Invalid=260, Unknown=0, NotChecked=0, Total=380
[2020-09-24 16:39:51,310 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1559 states.
[2020-09-24 16:39:51,484 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1559 to 1125.
[2020-09-24 16:39:51,486 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1125 states.
[2020-09-24 16:39:51,493 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1125 states to 1125 states and 1230 transitions.
[2020-09-24 16:39:51,496 INFO  L78                 Accepts]: Start accepts. Automaton has 1125 states and 1230 transitions. Word has length 230
[2020-09-24 16:39:51,497 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:39:51,497 INFO  L479      AbstractCegarLoop]: Abstraction has 1125 states and 1230 transitions.
[2020-09-24 16:39:51,497 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-24 16:39:51,498 INFO  L276                IsEmpty]: Start isEmpty. Operand 1125 states and 1230 transitions.
[2020-09-24 16:39:51,503 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 239
[2020-09-24 16:39:51,504 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:39:51,504 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 16:39:51,505 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 16:39:51,505 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:39:51,505 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:39:51,506 INFO  L82        PathProgramCache]: Analyzing trace with hash -1201488600, now seen corresponding path program 1 times
[2020-09-24 16:39:51,506 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:39:51,506 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1627132629]
[2020-09-24 16:39:51,506 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:39:51,625 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:39:51,635 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:39:51,635 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:39:51,635 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:39:51,635 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:39:51,636 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 269
[2020-09-24 16:39:51,636 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:39:51,636 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 16:39:51,636 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:39:51,636 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-24 16:39:51,636 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 190
[2020-09-24 16:39:51,637 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-24 16:39:51,637 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:39:52,042 WARN  L193               SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 208
[2020-09-24 16:39:52,043 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:39:52,054 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:39:52,055 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:39:52,056 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:39:52,056 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:39:52,056 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:39:52,057 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 129
[2020-09-24 16:39:52,057 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:39:52,057 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:39:52,057 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:39:52,057 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:39:52,057 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:39:52,058 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:39:52,058 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:39:52,195 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135
[2020-09-24 16:39:52,198 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:39:52,199 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:39:52,199 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:39:52,200 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:39:52,200 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:39:52,200 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 17
[2020-09-24 16:39:52,200 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:39:52,200 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:39:52,201 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:39:52,201 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:39:52,201 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:39:52,201 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:39:52,202 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:39:52,221 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-24 16:39:52,222 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:39:52,223 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:39:52,223 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:39:52,224 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:39:52,224 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:39:52,224 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 17
[2020-09-24 16:39:52,224 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:39:52,224 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:39:52,225 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:39:52,225 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:39:52,225 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:39:52,225 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:39:52,225 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:39:52,255 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165
[2020-09-24 16:39:52,257 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:39:52,258 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:39:52,258 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:39:52,259 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:39:52,259 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:39:52,259 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 16
[2020-09-24 16:39:52,260 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:39:52,260 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:39:52,260 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:39:52,261 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:39:52,261 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:39:52,261 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:39:52,261 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:39:52,281 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:39:52,282 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:39:52,284 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:39:52,285 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:39:52,286 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:39:52,286 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:39:52,287 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:39:52,290 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:39:52,291 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:39:52,292 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:39:52,292 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:39:52,293 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:39:52,293 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:39:52,296 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-24 16:39:52,329 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174
[2020-09-24 16:39:52,337 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:39:52,342 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:39:52,343 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:39:52,343 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:39:52,344 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:39:52,344 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 16:39:52,344 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:39:52,345 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 16:39:52,345 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:39:52,345 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-24 16:39:52,346 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-24 16:39:52,346 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 10
[2020-09-24 16:39:52,346 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:39:52,427 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184
[2020-09-24 16:39:52,431 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:39:52,432 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:39:52,433 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:39:52,433 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:39:52,433 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:39:52,434 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-24 16:39:52,434 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:39:52,434 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:39:52,435 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:39:52,435 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:39:52,435 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-24 16:39:52,436 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:39:52,436 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:39:52,472 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212
[2020-09-24 16:39:52,474 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:39:52,476 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:39:52,476 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:39:52,476 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:39:52,477 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:39:52,477 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 21
[2020-09-24 16:39:52,477 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:39:52,478 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:39:52,478 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:39:52,478 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:39:52,479 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 18
[2020-09-24 16:39:52,479 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:39:52,479 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:39:52,494 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:39:52,495 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:39:52,496 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:39:52,497 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:39:52,497 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:39:52,497 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:39:52,498 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 16
[2020-09-24 16:39:52,498 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:39:52,498 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:39:52,498 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:39:52,499 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:39:52,499 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:39:52,499 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:39:52,500 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:39:52,519 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-09-24 16:39:52,520 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:39:52,522 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:39:52,522 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:39:52,523 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:39:52,523 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:39:52,524 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 16:39:52,524 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:39:52,524 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:39:52,525 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:39:52,525 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:39:52,525 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:39:52,526 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:39:52,526 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:39:52,558 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227
[2020-09-24 16:39:52,560 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:39:52,562 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:39:52,563 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:39:52,563 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:39:52,563 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:39:52,564 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 16:39:52,564 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:39:52,564 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:39:52,565 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:39:52,565 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:39:52,565 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 7
[2020-09-24 16:39:52,566 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:39:52,566 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:39:52,666 INFO  L134       CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked.
[2020-09-24 16:39:52,666 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1627132629]
[2020-09-24 16:39:52,666 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-24 16:39:52,667 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10
[2020-09-24 16:39:52,667 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130779290]
[2020-09-24 16:39:52,671 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-09-24 16:39:52,671 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:39:52,671 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-09-24 16:39:52,672 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90
[2020-09-24 16:39:52,672 INFO  L87              Difference]: Start difference. First operand 1125 states and 1230 transitions. Second operand 10 states.
[2020-09-24 16:39:53,885 WARN  L193               SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 211
[2020-09-24 16:40:02,437 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:40:02,437 INFO  L93              Difference]: Finished difference Result 2537 states and 2880 transitions.
[2020-09-24 16:40:02,438 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. 
[2020-09-24 16:40:02,438 INFO  L78                 Accepts]: Start accepts. Automaton has 10 states. Word has length 238
[2020-09-24 16:40:02,440 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:40:02,450 INFO  L225             Difference]: With dead ends: 2537
[2020-09-24 16:40:02,450 INFO  L226             Difference]: Without dead ends: 1563
[2020-09-24 16:40:02,454 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462
[2020-09-24 16:40:02,457 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1563 states.
[2020-09-24 16:40:02,553 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1563 to 1129.
[2020-09-24 16:40:02,553 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1129 states.
[2020-09-24 16:40:02,558 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 1234 transitions.
[2020-09-24 16:40:02,558 INFO  L78                 Accepts]: Start accepts. Automaton has 1129 states and 1234 transitions. Word has length 238
[2020-09-24 16:40:02,560 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:40:02,560 INFO  L479      AbstractCegarLoop]: Abstraction has 1129 states and 1234 transitions.
[2020-09-24 16:40:02,560 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-09-24 16:40:02,561 INFO  L276                IsEmpty]: Start isEmpty. Operand 1129 states and 1234 transitions.
[2020-09-24 16:40:02,566 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 247
[2020-09-24 16:40:02,566 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:40:02,567 INFO  L422         BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 16:40:02,567 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 16:40:02,567 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:40:02,567 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:40:02,568 INFO  L82        PathProgramCache]: Analyzing trace with hash 1936210604, now seen corresponding path program 2 times
[2020-09-24 16:40:02,568 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:40:02,569 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [389381803]
[2020-09-24 16:40:02,569 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:40:02,691 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:40:02,703 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:40:02,703 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:40:02,703 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:40:02,704 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:40:02,704 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 277
[2020-09-24 16:40:02,704 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:40:02,704 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 16:40:02,705 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:40:02,705 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 16:40:02,705 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 190
[2020-09-24 16:40:02,705 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 12
[2020-09-24 16:40:02,706 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:40:03,149 WARN  L193               SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 208
[2020-09-24 16:40:03,151 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:40:03,165 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:40:03,166 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:40:03,167 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:40:03,167 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:40:03,167 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:40:03,168 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 129
[2020-09-24 16:40:03,168 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:40:03,168 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:40:03,168 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:40:03,168 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:40:03,168 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:40:03,169 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:40:03,169 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:40:03,305 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135
[2020-09-24 16:40:03,308 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:40:03,309 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:40:03,309 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:40:03,313 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:40:03,313 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:40:03,314 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 17
[2020-09-24 16:40:03,314 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:40:03,314 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:40:03,314 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:40:03,314 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:40:03,315 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:40:03,315 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:40:03,315 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:40:03,334 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-24 16:40:03,335 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:40:03,336 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:40:03,336 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:40:03,336 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:40:03,337 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:40:03,337 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 17
[2020-09-24 16:40:03,337 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:40:03,337 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:40:03,337 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:40:03,338 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:40:03,338 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:40:03,338 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:40:03,338 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:40:03,366 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165
[2020-09-24 16:40:03,368 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:40:03,368 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:40:03,369 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:40:03,369 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:40:03,369 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:40:03,369 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 16
[2020-09-24 16:40:03,370 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:40:03,370 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:40:03,370 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:40:03,370 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:40:03,370 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:40:03,371 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:40:03,371 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:40:03,379 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:40:03,380 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:40:03,381 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:40:03,381 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:40:03,382 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:40:03,382 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:40:03,382 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:40:03,383 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:40:03,383 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:40:03,383 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:40:03,384 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:40:03,384 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:40:03,384 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:40:03,385 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:40:03,423 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174
[2020-09-24 16:40:03,436 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:40:03,445 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:40:03,445 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:40:03,445 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:40:03,445 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:40:03,446 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 18
[2020-09-24 16:40:03,446 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:40:03,446 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 16:40:03,446 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:40:03,446 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 16:40:03,447 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-24 16:40:03,447 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 14
[2020-09-24 16:40:03,447 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:40:03,551 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188
[2020-09-24 16:40:03,556 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:40:03,557 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:40:03,558 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:40:03,558 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:40:03,558 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:40:03,559 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 18
[2020-09-24 16:40:03,559 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:40:03,559 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:40:03,560 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:40:03,560 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:40:03,560 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 15
[2020-09-24 16:40:03,561 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:40:03,561 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:40:03,605 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220
[2020-09-24 16:40:03,608 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:40:03,609 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:40:03,615 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:40:03,615 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:40:03,615 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:40:03,616 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 21
[2020-09-24 16:40:03,616 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:40:03,616 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 16:40:03,617 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:40:03,617 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:40:03,617 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 18
[2020-09-24 16:40:03,618 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:40:03,618 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:40:03,639 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:40:03,640 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:40:03,641 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:40:03,642 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:40:03,642 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:40:03,642 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:40:03,642 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 16
[2020-09-24 16:40:03,643 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:40:03,643 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:40:03,643 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:40:03,643 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:40:03,643 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:40:03,644 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:40:03,644 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:40:03,658 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-09-24 16:40:03,661 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:40:03,662 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:40:03,662 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:40:03,663 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:40:03,663 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:40:03,663 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 16:40:03,664 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:40:03,664 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:40:03,664 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:40:03,665 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:40:03,665 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:40:03,665 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:40:03,666 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:40:03,681 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235
[2020-09-24 16:40:03,683 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:40:03,685 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:40:03,685 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:40:03,685 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:40:03,685 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:40:03,686 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 16:40:03,686 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:40:03,687 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:40:03,687 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:40:03,687 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:40:03,688 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 7
[2020-09-24 16:40:03,688 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:40:03,688 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:40:03,779 INFO  L134       CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2020-09-24 16:40:03,779 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [389381803]
[2020-09-24 16:40:03,779 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-24 16:40:03,780 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11
[2020-09-24 16:40:03,781 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038450719]
[2020-09-24 16:40:03,781 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 11 states
[2020-09-24 16:40:03,782 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:40:03,782 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2020-09-24 16:40:03,782 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2020-09-24 16:40:03,782 INFO  L87              Difference]: Start difference. First operand 1129 states and 1234 transitions. Second operand 11 states.
[2020-09-24 16:40:04,992 WARN  L193               SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 211
[2020-09-24 16:40:14,019 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:40:14,019 INFO  L93              Difference]: Finished difference Result 2545 states and 2888 transitions.
[2020-09-24 16:40:14,020 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. 
[2020-09-24 16:40:14,020 INFO  L78                 Accepts]: Start accepts. Automaton has 11 states. Word has length 246
[2020-09-24 16:40:14,021 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:40:14,030 INFO  L225             Difference]: With dead ends: 2545
[2020-09-24 16:40:14,030 INFO  L226             Difference]: Without dead ends: 1567
[2020-09-24 16:40:14,034 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=142, Invalid=410, Unknown=0, NotChecked=0, Total=552
[2020-09-24 16:40:14,037 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1567 states.
[2020-09-24 16:40:14,112 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1567 to 1133.
[2020-09-24 16:40:14,113 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1133 states.
[2020-09-24 16:40:14,116 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1133 states to 1133 states and 1238 transitions.
[2020-09-24 16:40:14,117 INFO  L78                 Accepts]: Start accepts. Automaton has 1133 states and 1238 transitions. Word has length 246
[2020-09-24 16:40:14,117 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:40:14,117 INFO  L479      AbstractCegarLoop]: Abstraction has 1133 states and 1238 transitions.
[2020-09-24 16:40:14,117 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 11 states.
[2020-09-24 16:40:14,118 INFO  L276                IsEmpty]: Start isEmpty. Operand 1133 states and 1238 transitions.
[2020-09-24 16:40:14,121 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 255
[2020-09-24 16:40:14,121 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:40:14,121 INFO  L422         BasicCegarLoop]: trace histogram [6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 16:40:14,122 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 16:40:14,122 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:40:14,122 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:40:14,122 INFO  L82        PathProgramCache]: Analyzing trace with hash 580514864, now seen corresponding path program 3 times
[2020-09-24 16:40:14,123 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:40:14,123 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [392882077]
[2020-09-24 16:40:14,123 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:40:14,226 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:40:14,236 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:40:14,237 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:40:14,237 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:40:14,237 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:40:14,237 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 285
[2020-09-24 16:40:14,237 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:40:14,237 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 16:40:14,238 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:40:14,238 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-24 16:40:14,238 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 190
[2020-09-24 16:40:14,238 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 16
[2020-09-24 16:40:14,238 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:40:14,726 WARN  L193               SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 208
[2020-09-24 16:40:14,727 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:40:14,741 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:40:14,743 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:40:14,744 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:40:14,744 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:40:14,745 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:40:14,745 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 129
[2020-09-24 16:40:14,745 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:40:14,745 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:40:14,746 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:40:14,746 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:40:14,746 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:40:14,747 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:40:14,747 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:40:14,864 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135
[2020-09-24 16:40:14,866 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:40:14,867 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:40:14,868 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:40:14,868 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:40:14,868 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:40:14,869 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 17
[2020-09-24 16:40:14,869 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:40:14,869 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:40:14,870 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:40:14,870 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:40:14,870 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:40:14,871 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:40:14,871 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:40:14,893 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-24 16:40:14,894 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:40:14,895 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:40:14,896 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:40:14,896 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:40:14,896 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:40:14,897 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 17
[2020-09-24 16:40:14,897 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:40:14,897 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:40:14,898 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:40:14,898 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:40:14,898 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:40:14,899 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:40:14,899 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:40:14,933 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165
[2020-09-24 16:40:14,934 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:40:14,935 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:40:14,936 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:40:14,936 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:40:14,936 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:40:14,937 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 16
[2020-09-24 16:40:14,937 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:40:14,937 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:40:14,938 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:40:14,938 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:40:14,938 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:40:14,939 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:40:14,939 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:40:14,969 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:40:14,970 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:40:14,972 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:40:14,972 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:40:14,973 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:40:14,973 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:40:14,974 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:40:14,974 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:40:14,974 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:40:14,975 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:40:14,975 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:40:14,975 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:40:14,976 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:40:14,976 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:40:15,013 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174
[2020-09-24 16:40:15,023 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:40:15,041 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:40:15,042 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:40:15,042 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:40:15,043 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:40:15,043 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 22
[2020-09-24 16:40:15,043 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:40:15,044 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 18
[2020-09-24 16:40:15,044 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:40:15,044 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-24 16:40:15,045 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-24 16:40:15,045 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 18
[2020-09-24 16:40:15,045 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:40:15,189 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192
[2020-09-24 16:40:15,195 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:40:15,196 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:40:15,197 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:40:15,197 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:40:15,197 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:40:15,198 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 22
[2020-09-24 16:40:15,198 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:40:15,198 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:40:15,199 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:40:15,199 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:40:15,199 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 19
[2020-09-24 16:40:15,200 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:40:15,200 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:40:15,246 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228
[2020-09-24 16:40:15,248 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:40:15,249 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:40:15,250 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:40:15,250 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:40:15,250 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:40:15,250 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 21
[2020-09-24 16:40:15,251 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:40:15,251 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:40:15,251 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:40:15,252 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:40:15,252 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 18
[2020-09-24 16:40:15,252 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:40:15,253 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:40:15,264 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:40:15,265 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:40:15,267 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:40:15,268 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:40:15,268 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:40:15,269 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:40:15,269 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 16
[2020-09-24 16:40:15,269 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:40:15,270 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:40:15,270 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:40:15,271 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:40:15,271 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:40:15,271 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:40:15,272 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:40:15,287 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-09-24 16:40:15,288 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:40:15,289 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:40:15,289 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:40:15,290 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:40:15,290 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:40:15,290 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 16:40:15,291 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:40:15,291 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:40:15,291 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:40:15,292 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:40:15,292 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:40:15,293 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:40:15,293 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:40:15,307 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243
[2020-09-24 16:40:15,309 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:40:15,310 FATAL L256   erpolLogProxyWrapper]: Difference in size: 0
[2020-09-24 16:40:15,310 FATAL L256   erpolLogProxyWrapper]: Difference in depth: 0
[2020-09-24 16:40:15,310 FATAL L256   erpolLogProxyWrapper]: Difference in width: 0
[2020-09-24 16:40:15,311 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:40:15,311 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 16:40:15,312 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:40:15,312 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 16:40:15,312 FATAL L256   erpolLogProxyWrapper]: Heuristic: FIRST
[2020-09-24 16:40:15,313 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:40:15,313 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 7
[2020-09-24 16:40:15,313 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:40:15,314 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:40:15,429 INFO  L134       CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked.
[2020-09-24 16:40:15,432 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [392882077]
[2020-09-24 16:40:15,432 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-24 16:40:15,432 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12
[2020-09-24 16:40:15,433 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424752684]
[2020-09-24 16:40:15,434 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 12 states
[2020-09-24 16:40:15,434 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:40:15,434 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2020-09-24 16:40:15,435 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132
[2020-09-24 16:40:15,435 INFO  L87              Difference]: Start difference. First operand 1133 states and 1238 transitions. Second operand 12 states.
[2020-09-24 16:40:16,759 WARN  L193               SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 211
[2020-09-24 16:40:27,403 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:40:27,404 INFO  L93              Difference]: Finished difference Result 2553 states and 2896 transitions.
[2020-09-24 16:40:27,404 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2020-09-24 16:40:27,405 INFO  L78                 Accepts]: Start accepts. Automaton has 12 states. Word has length 254
[2020-09-24 16:40:27,405 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:40:27,413 INFO  L225             Difference]: With dead ends: 2553
[2020-09-24 16:40:27,414 INFO  L226             Difference]: Without dead ends: 1571
[2020-09-24 16:40:27,417 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=163, Invalid=487, Unknown=0, NotChecked=0, Total=650
[2020-09-24 16:40:27,420 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1571 states.
[2020-09-24 16:40:27,494 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1571 to 1137.
[2020-09-24 16:40:27,495 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1137 states.
[2020-09-24 16:40:27,498 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1137 states to 1137 states and 1242 transitions.
[2020-09-24 16:40:27,499 INFO  L78                 Accepts]: Start accepts. Automaton has 1137 states and 1242 transitions. Word has length 254
[2020-09-24 16:40:27,499 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:40:27,499 INFO  L479      AbstractCegarLoop]: Abstraction has 1137 states and 1242 transitions.
[2020-09-24 16:40:27,499 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 12 states.
[2020-09-24 16:40:27,500 INFO  L276                IsEmpty]: Start isEmpty. Operand 1137 states and 1242 transitions.
[2020-09-24 16:40:27,503 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 263
[2020-09-24 16:40:27,503 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:40:27,504 INFO  L422         BasicCegarLoop]: trace histogram [8, 8, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 16:40:27,504 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-24 16:40:27,504 INFO  L427      AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:40:27,504 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:40:27,505 INFO  L82        PathProgramCache]: Analyzing trace with hash -1946424908, now seen corresponding path program 4 times
[2020-09-24 16:40:27,505 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:40:27,505 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1870791474]
[2020-09-24 16:40:27,505 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY