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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i


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


This is Ultimate 0.1.24-f4eb214f-m
[2019-10-13 18:32:09,162 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2019-10-13 18:32:09,166 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2019-10-13 18:32:09,185 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-10-13 18:32:09,186 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-10-13 18:32:09,188 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-10-13 18:32:09,190 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-10-13 18:32:09,199 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2019-10-13 18:32:09,204 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-10-13 18:32:09,205 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-10-13 18:32:09,206 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2019-10-13 18:32:09,208 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-10-13 18:32:09,209 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-10-13 18:32:09,212 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-10-13 18:32:09,215 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-10-13 18:32:09,216 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-10-13 18:32:09,217 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-10-13 18:32:09,218 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-10-13 18:32:09,220 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-10-13 18:32:09,225 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2019-10-13 18:32:09,230 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-10-13 18:32:09,233 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-10-13 18:32:09,235 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2019-10-13 18:32:09,236 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-10-13 18:32:09,238 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-10-13 18:32:09,238 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-10-13 18:32:09,239 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-10-13 18:32:09,240 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2019-10-13 18:32:09,241 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2019-10-13 18:32:09,242 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2019-10-13 18:32:09,243 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2019-10-13 18:32:09,244 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2019-10-13 18:32:09,245 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2019-10-13 18:32:09,246 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2019-10-13 18:32:09,247 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-10-13 18:32:09,248 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2019-10-13 18:32:09,248 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2019-10-13 18:32:09,249 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2019-10-13 18:32:09,249 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2019-10-13 18:32:09,250 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2019-10-13 18:32:09,251 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2019-10-13 18:32:09,252 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2019-10-13 18:32:09,278 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-10-13 18:32:09,279 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-10-13 18:32:09,281 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-10-13 18:32:09,281 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-10-13 18:32:09,281 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-10-13 18:32:09,282 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-10-13 18:32:09,282 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-10-13 18:32:09,282 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-10-13 18:32:09,283 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-10-13 18:32:09,283 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-10-13 18:32:09,284 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-10-13 18:32:09,284 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-10-13 18:32:09,284 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-10-13 18:32:09,285 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-10-13 18:32:09,285 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-10-13 18:32:09,285 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-10-13 18:32:09,285 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-10-13 18:32:09,286 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-10-13 18:32:09,286 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-10-13 18:32:09,286 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-10-13 18:32:09,286 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-10-13 18:32:09,286 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-10-13 18:32:09,287 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-10-13 18:32:09,287 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-10-13 18:32:09,287 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-10-13 18:32:09,287 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-10-13 18:32:09,287 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-10-13 18:32:09,288 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-10-13 18:32:09,288 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2019-10-13 18:32:09,568 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-10-13 18:32:09,582 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-10-13 18:32:09,586 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-10-13 18:32:09,588 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-10-13 18:32:09,588 INFO  L275        PluginConnector]: CDTParser initialized
[2019-10-13 18:32:09,589 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i
[2019-10-13 18:32:09,650 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27685da2d/41a5cf86ab634cc4b0d89420446a8470/FLAGc8e6a31c8
[2019-10-13 18:32:10,395 INFO  L306              CDTParser]: Found 1 translation units.
[2019-10-13 18:32:10,396 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i
[2019-10-13 18:32:10,439 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27685da2d/41a5cf86ab634cc4b0d89420446a8470/FLAGc8e6a31c8
[2019-10-13 18:32:10,483 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27685da2d/41a5cf86ab634cc4b0d89420446a8470
[2019-10-13 18:32:10,495 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-10-13 18:32:10,498 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-10-13 18:32:10,502 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-10-13 18:32:10,503 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-10-13 18:32:10,506 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-10-13 18:32:10,508 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:32:10" (1/1) ...
[2019-10-13 18:32:10,511 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63604d45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:32:10, skipping insertion in model container
[2019-10-13 18:32:10,511 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:32:10" (1/1) ...
[2019-10-13 18:32:10,521 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-10-13 18:32:10,646 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-10-13 18:32:12,060 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-10-13 18:32:12,101 INFO  L188         MainTranslator]: Completed pre-run
[2019-10-13 18:32:12,345 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-10-13 18:32:12,461 INFO  L192         MainTranslator]: Completed translation
[2019-10-13 18:32:12,462 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:32:12 WrapperNode
[2019-10-13 18:32:12,463 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-10-13 18:32:12,464 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-10-13 18:32:12,465 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-10-13 18:32:12,465 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-10-13 18:32:12,487 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:32:12" (1/1) ...
[2019-10-13 18:32:12,488 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:32:12" (1/1) ...
[2019-10-13 18:32:12,574 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:32:12" (1/1) ...
[2019-10-13 18:32:12,575 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:32:12" (1/1) ...
[2019-10-13 18:32:12,690 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:32:12" (1/1) ...
[2019-10-13 18:32:12,715 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:32:12" (1/1) ...
[2019-10-13 18:32:12,825 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:32:12" (1/1) ...
[2019-10-13 18:32:12,848 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-10-13 18:32:12,852 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-10-13 18:32:12,852 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-10-13 18:32:12,852 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-10-13 18:32:12,853 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:32:12" (1/1) ...
No working directory specified, using /storage/repos/ultimate/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
[2019-10-13 18:32:12,927 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-10-13 18:32:12,927 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-10-13 18:32:12,928 INFO  L138     BoogieDeclarations]: Found implementation of procedure atomic_read
[2019-10-13 18:32:12,928 INFO  L138     BoogieDeclarations]: Found implementation of procedure skb_end_pointer
[2019-10-13 18:32:12,928 INFO  L138     BoogieDeclarations]: Found implementation of procedure skb_cloned
[2019-10-13 18:32:12,929 INFO  L138     BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear
[2019-10-13 18:32:12,930 INFO  L138     BoogieDeclarations]: Found implementation of procedure skb_reset_tail_pointer
[2019-10-13 18:32:12,930 INFO  L138     BoogieDeclarations]: Found implementation of procedure skb_set_tail_pointer
[2019-10-13 18:32:12,930 INFO  L138     BoogieDeclarations]: Found implementation of procedure skb_headroom
[2019-10-13 18:32:12,930 INFO  L138     BoogieDeclarations]: Found implementation of procedure skb_tailroom
[2019-10-13 18:32:12,930 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_malloc
[2019-10-13 18:32:12,931 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_zalloc
[2019-10-13 18:32:12,932 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_undef_int
[2019-10-13 18:32:12,932 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr
[2019-10-13 18:32:12,934 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong
[2019-10-13 18:32:12,934 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_error
[2019-10-13 18:32:12,938 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_stop
[2019-10-13 18:32:12,938 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect
[2019-10-13 18:32:12,938 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap
[2019-10-13 18:32:12,939 INFO  L138     BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any
[2019-10-13 18:32:12,939 INFO  L138     BoogieDeclarations]: Found implementation of procedure __create_pipe
[2019-10-13 18:32:12,939 INFO  L138     BoogieDeclarations]: Found implementation of procedure genelink_rx_fixup
[2019-10-13 18:32:12,939 INFO  L138     BoogieDeclarations]: Found implementation of procedure genelink_tx_fixup
[2019-10-13 18:32:12,939 INFO  L138     BoogieDeclarations]: Found implementation of procedure genelink_bind
[2019-10-13 18:32:12,940 INFO  L138     BoogieDeclarations]: Found implementation of procedure gl620a_driver_init
[2019-10-13 18:32:12,940 INFO  L138     BoogieDeclarations]: Found implementation of procedure gl620a_driver_exit
[2019-10-13 18:32:12,940 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_initialize_driver_info_2
[2019-10-13 18:32:12,941 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1
[2019-10-13 18:32:12,941 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-10-13 18:32:12,941 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5
[2019-10-13 18:32:12,941 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6
[2019-10-13 18:32:12,941 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7
[2019-10-13 18:32:12,942 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8
[2019-10-13 18:32:12,943 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11
[2019-10-13 18:32:12,943 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_alloc_skb_12
[2019-10-13 18:32:12,943 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_13
[2019-10-13 18:32:12,943 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_14
[2019-10-13 18:32:12,943 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_set_init
[2019-10-13 18:32:12,943 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_set_add
[2019-10-13 18:32:12,943 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_set_remove
[2019-10-13 18:32:12,944 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_set_contains
[2019-10-13 18:32:12,944 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty
[2019-10-13 18:32:12,944 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_is_err
[2019-10-13 18:32:12,944 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_err_ptr
[2019-10-13 18:32:12,944 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_ptr_err
[2019-10-13 18:32:12,944 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null
[2019-10-13 18:32:12,944 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc
[2019-10-13 18:32:12,944 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_initialize
[2019-10-13 18:32:12,945 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_skb_free
[2019-10-13 18:32:12,945 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int
[2019-10-13 18:32:12,945 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb
[2019-10-13 18:32:12,945 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb
[2019-10-13 18:32:12,945 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_skb_current
[2019-10-13 18:32:12,945 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_check_final_state
[2019-10-13 18:32:12,945 INFO  L138     BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any
[2019-10-13 18:32:12,946 INFO  L138     BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg
[2019-10-13 18:32:12,946 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_release_2
[2019-10-13 18:32:12,946 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_reset_resume_1
[2019-10-13 18:32:12,947 INFO  L138     BoogieDeclarations]: Found implementation of procedure skb_copy_expand
[2019-10-13 18:32:12,948 INFO  L138     BoogieDeclarations]: Found implementation of procedure skb_pull
[2019-10-13 18:32:12,948 INFO  L138     BoogieDeclarations]: Found implementation of procedure skb_push
[2019-10-13 18:32:12,948 INFO  L138     BoogieDeclarations]: Found implementation of procedure skb_put
[2019-10-13 18:32:12,948 INFO  L138     BoogieDeclarations]: Found implementation of procedure usb_deregister
[2019-10-13 18:32:12,949 INFO  L138     BoogieDeclarations]: Found implementation of procedure usb_register_driver
[2019-10-13 18:32:12,949 INFO  L138     BoogieDeclarations]: Found implementation of procedure usbnet_disconnect
[2019-10-13 18:32:12,949 INFO  L138     BoogieDeclarations]: Found implementation of procedure usbnet_probe
[2019-10-13 18:32:12,949 INFO  L138     BoogieDeclarations]: Found implementation of procedure usbnet_resume
[2019-10-13 18:32:12,950 INFO  L138     BoogieDeclarations]: Found implementation of procedure usbnet_skb_return
[2019-10-13 18:32:12,950 INFO  L138     BoogieDeclarations]: Found implementation of procedure usbnet_suspend
[2019-10-13 18:32:12,950 INFO  L138     BoogieDeclarations]: Found implementation of procedure external_alloc
[2019-10-13 18:32:12,950 INFO  L138     BoogieDeclarations]: Found implementation of procedure kfree
[2019-10-13 18:32:12,951 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset
[2019-10-13 18:32:12,951 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit
[2019-10-13 18:32:12,951 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy
[2019-10-13 18:32:12,952 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove
[2019-10-13 18:32:12,952 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-10-13 18:32:12,952 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv__builtin_expect
[2019-10-13 18:32:12,952 INFO  L130     BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg
[2019-10-13 18:32:12,952 INFO  L130     BoogieDeclarations]: Found specification of procedure memset
[2019-10-13 18:32:12,952 INFO  L130     BoogieDeclarations]: Found specification of procedure memmove
[2019-10-13 18:32:12,953 INFO  L130     BoogieDeclarations]: Found specification of procedure atomic_read
[2019-10-13 18:32:12,953 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2019-10-13 18:32:12,953 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6
[2019-10-13 18:32:12,954 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7
[2019-10-13 18:32:12,954 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8
[2019-10-13 18:32:12,954 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11
[2019-10-13 18:32:12,954 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5
[2019-10-13 18:32:12,954 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_alloc_skb_12
[2019-10-13 18:32:12,955 INFO  L130     BoogieDeclarations]: Found specification of procedure skb_copy_expand
[2019-10-13 18:32:12,955 INFO  L130     BoogieDeclarations]: Found specification of procedure skb_end_pointer
[2019-10-13 18:32:12,955 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2019-10-13 18:32:12,956 INFO  L130     BoogieDeclarations]: Found specification of procedure skb_cloned
[2019-10-13 18:32:12,956 INFO  L130     BoogieDeclarations]: Found specification of procedure skb_is_nonlinear
[2019-10-13 18:32:12,956 INFO  L130     BoogieDeclarations]: Found specification of procedure skb_reset_tail_pointer
[2019-10-13 18:32:12,956 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2019-10-13 18:32:12,956 INFO  L130     BoogieDeclarations]: Found specification of procedure skb_set_tail_pointer
[2019-10-13 18:32:12,956 INFO  L130     BoogieDeclarations]: Found specification of procedure skb_put
[2019-10-13 18:32:12,956 INFO  L130     BoogieDeclarations]: Found specification of procedure skb_push
[2019-10-13 18:32:12,957 INFO  L130     BoogieDeclarations]: Found specification of procedure skb_pull
[2019-10-13 18:32:12,957 INFO  L130     BoogieDeclarations]: Found specification of procedure skb_headroom
[2019-10-13 18:32:12,957 INFO  L130     BoogieDeclarations]: Found specification of procedure skb_tailroom
[2019-10-13 18:32:12,957 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_skb_alloc
[2019-10-13 18:32:12,957 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_skb_free
[2019-10-13 18:32:12,957 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2019-10-13 18:32:12,957 INFO  L130     BoogieDeclarations]: Found specification of procedure calloc
[2019-10-13 18:32:12,957 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-10-13 18:32:12,958 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong
[2019-10-13 18:32:12,958 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer
[2019-10-13 18:32:12,958 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assume
[2019-10-13 18:32:12,958 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_malloc
[2019-10-13 18:32:12,958 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2019-10-13 18:32:12,958 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_zalloc
[2019-10-13 18:32:12,958 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.meminit
[2019-10-13 18:32:12,959 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_undef_int
[2019-10-13 18:32:12,959 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_undef_ptr
[2019-10-13 18:32:12,959 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_undef_ulong
[2019-10-13 18:32:12,959 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_error
[2019-10-13 18:32:12,960 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_stop
[2019-10-13 18:32:12,960 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv__builtin_trap
[2019-10-13 18:32:12,960 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_initialize_driver_info_2
[2019-10-13 18:32:12,960 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1
[2019-10-13 18:32:12,960 INFO  L130     BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any
[2019-10-13 18:32:12,961 INFO  L130     BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any
[2019-10-13 18:32:12,961 INFO  L130     BoogieDeclarations]: Found specification of procedure usb_register_driver
[2019-10-13 18:32:12,962 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_13
[2019-10-13 18:32:12,962 INFO  L130     BoogieDeclarations]: Found specification of procedure usb_deregister
[2019-10-13 18:32:12,962 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_14
[2019-10-13 18:32:12,962 INFO  L130     BoogieDeclarations]: Found specification of procedure __create_pipe
[2019-10-13 18:32:12,963 INFO  L130     BoogieDeclarations]: Found specification of procedure memcpy
[2019-10-13 18:32:12,963 INFO  L130     BoogieDeclarations]: Found specification of procedure usbnet_probe
[2019-10-13 18:32:12,963 INFO  L130     BoogieDeclarations]: Found specification of procedure usbnet_suspend
[2019-10-13 18:32:12,963 INFO  L130     BoogieDeclarations]: Found specification of procedure usbnet_resume
[2019-10-13 18:32:12,963 INFO  L130     BoogieDeclarations]: Found specification of procedure usbnet_disconnect
[2019-10-13 18:32:12,964 INFO  L130     BoogieDeclarations]: Found specification of procedure usbnet_skb_return
[2019-10-13 18:32:12,964 INFO  L130     BoogieDeclarations]: Found specification of procedure genelink_rx_fixup
[2019-10-13 18:32:12,964 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2019-10-13 18:32:12,964 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy
[2019-10-13 18:32:12,964 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2019-10-13 18:32:12,964 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2019-10-13 18:32:12,965 INFO  L130     BoogieDeclarations]: Found specification of procedure genelink_tx_fixup
[2019-10-13 18:32:12,968 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove
[2019-10-13 18:32:12,969 INFO  L130     BoogieDeclarations]: Found specification of procedure genelink_bind
[2019-10-13 18:32:12,969 INFO  L130     BoogieDeclarations]: Found specification of procedure gl620a_driver_init
[2019-10-13 18:32:12,970 INFO  L130     BoogieDeclarations]: Found specification of procedure gl620a_driver_exit
[2019-10-13 18:32:12,976 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_reset_resume_1
[2019-10-13 18:32:12,976 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_release_2
[2019-10-13 18:32:12,976 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_initialize
[2019-10-13 18:32:12,976 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_check_final_state
[2019-10-13 18:32:12,976 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-10-13 18:32:12,976 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset
[2019-10-13 18:32:12,977 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_set_init
[2019-10-13 18:32:12,977 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_set_add
[2019-10-13 18:32:12,977 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_set_remove
[2019-10-13 18:32:12,977 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_set_contains
[2019-10-13 18:32:12,977 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_set_is_empty
[2019-10-13 18:32:12,978 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_is_err
[2019-10-13 18:32:12,979 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_err_ptr
[2019-10-13 18:32:12,979 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_ptr_err
[2019-10-13 18:32:12,979 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null
[2019-10-13 18:32:12,979 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_skb_free_int
[2019-10-13 18:32:12,979 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb
[2019-10-13 18:32:12,979 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb
[2019-10-13 18:32:12,980 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_skb_current
[2019-10-13 18:32:12,980 INFO  L130     BoogieDeclarations]: Found specification of procedure external_alloc
[2019-10-13 18:32:12,980 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2019-10-13 18:32:12,980 INFO  L130     BoogieDeclarations]: Found specification of procedure kfree
[2019-10-13 18:32:12,980 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-10-13 18:32:12,980 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2019-10-13 18:32:12,980 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$
[2019-10-13 18:32:12,980 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int
[2019-10-13 18:32:12,981 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-10-13 18:32:12,981 INFO  L130     BoogieDeclarations]: Found specification of procedure read~unchecked~int
[2019-10-13 18:32:12,981 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$
[2019-10-13 18:32:12,981 INFO  L130     BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$
[2019-10-13 18:32:13,596 INFO  L685   $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true;
[2019-10-13 18:32:15,996 INFO  L279             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-10-13 18:32:15,997 INFO  L284             CfgBuilder]: Removed 4 assume(true) statements.
[2019-10-13 18:32:15,999 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:32:15 BoogieIcfgContainer
[2019-10-13 18:32:15,999 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-10-13 18:32:16,002 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-10-13 18:32:16,002 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-10-13 18:32:16,006 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-10-13 18:32:16,007 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:32:10" (1/3) ...
[2019-10-13 18:32:16,007 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@221bef6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:32:16, skipping insertion in model container
[2019-10-13 18:32:16,008 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:32:12" (2/3) ...
[2019-10-13 18:32:16,008 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@221bef6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:32:16, skipping insertion in model container
[2019-10-13 18:32:16,008 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:32:15" (3/3) ...
[2019-10-13 18:32:16,010 INFO  L109   eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i
[2019-10-13 18:32:16,025 INFO  L152   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-10-13 18:32:16,037 INFO  L164   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-10-13 18:32:16,055 INFO  L249      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-10-13 18:32:16,090 INFO  L373      AbstractCegarLoop]: Interprodecural is true
[2019-10-13 18:32:16,091 INFO  L374      AbstractCegarLoop]: Hoare is true
[2019-10-13 18:32:16,091 INFO  L375      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-10-13 18:32:16,091 INFO  L376      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-10-13 18:32:16,091 INFO  L377      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-10-13 18:32:16,092 INFO  L378      AbstractCegarLoop]: Difference is false
[2019-10-13 18:32:16,092 INFO  L379      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-10-13 18:32:16,092 INFO  L383      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-10-13 18:32:16,127 INFO  L276                IsEmpty]: Start isEmpty. Operand 375 states.
[2019-10-13 18:32:16,142 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 67
[2019-10-13 18:32:16,143 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 18:32:16,144 INFO  L380         BasicCegarLoop]: trace histogram [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]
[2019-10-13 18:32:16,147 INFO  L410      AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 18:32:16,155 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 18:32:16,156 INFO  L82        PathProgramCache]: Analyzing trace with hash -770013367, now seen corresponding path program 1 times
[2019-10-13 18:32:16,170 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-13 18:32:16,170 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058291792]
[2019-10-13 18:32:16,170 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 18:32:16,171 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 18:32:16,171 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 18:32:16,535 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:17,446 WARN  L191               SmtUtils]: Spent 675.00 ms on a formula simplification that was a NOOP. DAG size: 256
[2019-10-13 18:32:17,457 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:17,535 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:17,548 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:17,579 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:17,589 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:17,623 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:17,633 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:17,666 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:17,676 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:17,687 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:17,704 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:17,734 INFO  L134       CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2019-10-13 18:32:17,735 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058291792]
[2019-10-13 18:32:17,736 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 18:32:17,736 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2019-10-13 18:32:17,736 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780245910]
[2019-10-13 18:32:17,742 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 8 states
[2019-10-13 18:32:17,742 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-13 18:32:17,757 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2019-10-13 18:32:17,758 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2019-10-13 18:32:17,761 INFO  L87              Difference]: Start difference. First operand 375 states. Second operand 8 states.
[2019-10-13 18:32:22,415 WARN  L191               SmtUtils]: Spent 471.00 ms on a formula simplification that was a NOOP. DAG size: 258
[2019-10-13 18:32:30,299 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 18:32:30,299 INFO  L93              Difference]: Finished difference Result 1320 states and 1816 transitions.
[2019-10-13 18:32:30,300 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. 
[2019-10-13 18:32:30,301 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 66
[2019-10-13 18:32:30,302 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 18:32:30,325 INFO  L225             Difference]: With dead ends: 1320
[2019-10-13 18:32:30,326 INFO  L226             Difference]: Without dead ends: 950
[2019-10-13 18:32:30,334 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462
[2019-10-13 18:32:30,355 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 950 states.
[2019-10-13 18:32:30,528 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 626.
[2019-10-13 18:32:30,530 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 626 states.
[2019-10-13 18:32:30,535 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 778 transitions.
[2019-10-13 18:32:30,537 INFO  L78                 Accepts]: Start accepts. Automaton has 626 states and 778 transitions. Word has length 66
[2019-10-13 18:32:30,538 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-13 18:32:30,538 INFO  L462      AbstractCegarLoop]: Abstraction has 626 states and 778 transitions.
[2019-10-13 18:32:30,538 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2019-10-13 18:32:30,538 INFO  L276                IsEmpty]: Start isEmpty. Operand 626 states and 778 transitions.
[2019-10-13 18:32:30,544 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 83
[2019-10-13 18:32:30,544 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 18:32:30,545 INFO  L380         BasicCegarLoop]: trace histogram [3, 3, 3, 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]
[2019-10-13 18:32:30,545 INFO  L410      AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 18:32:30,545 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 18:32:30,546 INFO  L82        PathProgramCache]: Analyzing trace with hash 179693087, now seen corresponding path program 1 times
[2019-10-13 18:32:30,546 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-13 18:32:30,546 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724063406]
[2019-10-13 18:32:30,546 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 18:32:30,546 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 18:32:30,547 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 18:32:30,619 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:31,362 WARN  L191               SmtUtils]: Spent 512.00 ms on a formula simplification that was a NOOP. DAG size: 256
[2019-10-13 18:32:31,369 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:31,418 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:31,424 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:31,447 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:31,455 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:31,485 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:31,493 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:31,537 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:31,549 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:31,557 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:31,590 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:31,596 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:31,603 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:31,659 INFO  L134       CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked.
[2019-10-13 18:32:31,659 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724063406]
[2019-10-13 18:32:31,660 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 18:32:31,660 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12
[2019-10-13 18:32:31,660 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480783462]
[2019-10-13 18:32:31,662 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 12 states
[2019-10-13 18:32:31,662 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-13 18:32:31,662 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2019-10-13 18:32:31,662 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2019-10-13 18:32:31,663 INFO  L87              Difference]: Start difference. First operand 626 states and 778 transitions. Second operand 12 states.
[2019-10-13 18:32:36,410 WARN  L191               SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 258
[2019-10-13 18:32:39,395 WARN  L191               SmtUtils]: Spent 851.00 ms on a formula simplification. DAG size of input: 266 DAG size of output: 261
[2019-10-13 18:32:40,103 WARN  L191               SmtUtils]: Spent 473.00 ms on a formula simplification that was a NOOP. DAG size: 261
[2019-10-13 18:32:40,626 WARN  L191               SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 261
[2019-10-13 18:32:44,968 WARN  L191               SmtUtils]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 266
[2019-10-13 18:32:46,208 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 18:32:46,209 INFO  L93              Difference]: Finished difference Result 2249 states and 2986 transitions.
[2019-10-13 18:32:46,211 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2019-10-13 18:32:46,211 INFO  L78                 Accepts]: Start accepts. Automaton has 12 states. Word has length 82
[2019-10-13 18:32:46,212 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 18:32:46,236 INFO  L225             Difference]: With dead ends: 2249
[2019-10-13 18:32:46,237 INFO  L226             Difference]: Without dead ends: 1624
[2019-10-13 18:32:46,241 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=203, Invalid=447, Unknown=0, NotChecked=0, Total=650
[2019-10-13 18:32:46,245 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1624 states.
[2019-10-13 18:32:46,493 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1624 to 1273.
[2019-10-13 18:32:46,493 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1273 states.
[2019-10-13 18:32:46,502 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1273 states to 1273 states and 1611 transitions.
[2019-10-13 18:32:46,503 INFO  L78                 Accepts]: Start accepts. Automaton has 1273 states and 1611 transitions. Word has length 82
[2019-10-13 18:32:46,503 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-13 18:32:46,503 INFO  L462      AbstractCegarLoop]: Abstraction has 1273 states and 1611 transitions.
[2019-10-13 18:32:46,504 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 12 states.
[2019-10-13 18:32:46,504 INFO  L276                IsEmpty]: Start isEmpty. Operand 1273 states and 1611 transitions.
[2019-10-13 18:32:46,512 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 160
[2019-10-13 18:32:46,512 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 18:32:46,513 INFO  L380         BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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]
[2019-10-13 18:32:46,513 INFO  L410      AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 18:32:46,513 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 18:32:46,514 INFO  L82        PathProgramCache]: Analyzing trace with hash -2036601842, now seen corresponding path program 1 times
[2019-10-13 18:32:46,514 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-13 18:32:46,514 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85831443]
[2019-10-13 18:32:46,514 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 18:32:46,514 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 18:32:46,515 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 18:32:46,556 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:47,070 WARN  L191               SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 256
[2019-10-13 18:32:47,079 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:47,142 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:47,148 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:47,171 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:47,177 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:47,199 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:47,204 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:47,244 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:47,267 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:47,280 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:47,306 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:47,342 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:47,441 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:47,510 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:47,517 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:47,522 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:47,530 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:47,537 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:47,597 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:47,610 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:47,619 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:47,655 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:47,662 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:47,670 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:47,728 INFO  L134       CoverageAnalysis]: Checked inductivity of 56 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked.
[2019-10-13 18:32:47,728 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85831443]
[2019-10-13 18:32:47,728 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142339716]
[2019-10-13 18:32:47,729 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2019-10-13 18:32:48,114 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 18:32:48,120 INFO  L256         TraceCheckSpWp]: Trace formula consists of 1680 conjuncts, 3 conjunts are in the unsatisfiable core
[2019-10-13 18:32:48,131 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2019-10-13 18:32:48,204 INFO  L134       CoverageAnalysis]: Checked inductivity of 56 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked.
[2019-10-13 18:32:48,205 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2019-10-13 18:32:48,205 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [14] total 14
[2019-10-13 18:32:48,206 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886555197]
[2019-10-13 18:32:48,206 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-10-13 18:32:48,207 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-13 18:32:48,207 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-10-13 18:32:48,207 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182
[2019-10-13 18:32:48,207 INFO  L87              Difference]: Start difference. First operand 1273 states and 1611 transitions. Second operand 3 states.