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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--arc-rawmode.ko-entry_point.cil.out.i
--------------------------------------------------------------------------------
This is Ultimate 0.1.24-f4eb214f-m
[2019-10-13 22:17:47,318 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2019-10-13 22:17:47,320 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2019-10-13 22:17:47,332 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-10-13 22:17:47,333 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-10-13 22:17:47,334 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-10-13 22:17:47,336 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-10-13 22:17:47,339 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2019-10-13 22:17:47,341 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-10-13 22:17:47,342 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-10-13 22:17:47,343 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2019-10-13 22:17:47,350 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-10-13 22:17:47,351 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-10-13 22:17:47,353 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-10-13 22:17:47,354 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-10-13 22:17:47,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-10-13 22:17:47,360 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-10-13 22:17:47,361 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-10-13 22:17:47,362 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-10-13 22:17:47,366 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2019-10-13 22:17:47,367 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-10-13 22:17:47,370 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-10-13 22:17:47,371 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2019-10-13 22:17:47,372 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-10-13 22:17:47,375 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-10-13 22:17:47,376 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-10-13 22:17:47,376 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-10-13 22:17:47,377 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2019-10-13 22:17:47,377 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2019-10-13 22:17:47,379 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2019-10-13 22:17:47,379 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2019-10-13 22:17:47,380 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2019-10-13 22:17:47,381 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2019-10-13 22:17:47,382 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2019-10-13 22:17:47,385 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-10-13 22:17:47,386 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2019-10-13 22:17:47,386 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2019-10-13 22:17:47,386 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2019-10-13 22:17:47,386 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2019-10-13 22:17:47,387 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2019-10-13 22:17:47,390 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2019-10-13 22:17:47,391 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 22:17:47,424 INFO L113 SettingsManager]: Loading preferences was successful
[2019-10-13 22:17:47,425 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2019-10-13 22:17:47,426 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-10-13 22:17:47,426 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2019-10-13 22:17:47,429 INFO L138 SettingsManager]: * Use SBE=true
[2019-10-13 22:17:47,429 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-10-13 22:17:47,430 INFO L138 SettingsManager]: * sizeof long=4
[2019-10-13 22:17:47,430 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2019-10-13 22:17:47,430 INFO L138 SettingsManager]: * sizeof POINTER=4
[2019-10-13 22:17:47,430 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2019-10-13 22:17:47,430 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2019-10-13 22:17:47,430 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-10-13 22:17:47,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2019-10-13 22:17:47,431 INFO L138 SettingsManager]: * sizeof long double=12
[2019-10-13 22:17:47,431 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2019-10-13 22:17:47,431 INFO L138 SettingsManager]: * Use constant arrays=true
[2019-10-13 22:17:47,431 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2019-10-13 22:17:47,432 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-10-13 22:17:47,432 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2019-10-13 22:17:47,432 INFO L138 SettingsManager]: * To the following directory=./dump/
[2019-10-13 22:17:47,435 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2019-10-13 22:17:47,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-10-13 22:17:47,435 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-10-13 22:17:47,435 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2019-10-13 22:17:47,435 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-10-13 22:17:47,436 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2019-10-13 22:17:47,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-10-13 22:17:47,436 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-10-13 22:17:47,436 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK
[2019-10-13 22:17:47,696 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2019-10-13 22:17:47,716 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-10-13 22:17:47,719 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-10-13 22:17:47,720 INFO L271 PluginConnector]: Initializing CDTParser...
[2019-10-13 22:17:47,721 INFO L275 PluginConnector]: CDTParser initialized
[2019-10-13 22:17:47,721 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--arc-rawmode.ko-entry_point.cil.out.i
[2019-10-13 22:17:47,795 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5476857ab/8891a4a8476044efa045ad87cf44138a/FLAG00308d8f3
[2019-10-13 22:17:48,509 INFO L306 CDTParser]: Found 1 translation units.
[2019-10-13 22:17:48,510 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--arc-rawmode.ko-entry_point.cil.out.i
[2019-10-13 22:17:48,538 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5476857ab/8891a4a8476044efa045ad87cf44138a/FLAG00308d8f3
[2019-10-13 22:17:48,637 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5476857ab/8891a4a8476044efa045ad87cf44138a
[2019-10-13 22:17:48,649 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-10-13 22:17:48,651 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2019-10-13 22:17:48,655 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-10-13 22:17:48,655 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-10-13 22:17:48,659 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2019-10-13 22:17:48,660 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:17:48" (1/1) ...
[2019-10-13 22:17:48,663 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cdc7067 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:17:48, skipping insertion in model container
[2019-10-13 22:17:48,663 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:17:48" (1/1) ...
[2019-10-13 22:17:48,672 INFO L142 MainTranslator]: Starting translation in SV-COMP mode
[2019-10-13 22:17:48,795 INFO L173 MainTranslator]: Built tables and reachable declarations
[2019-10-13 22:17:49,738 INFO L206 PostProcessor]: Analyzing one entry point: main
[2019-10-13 22:17:49,756 INFO L188 MainTranslator]: Completed pre-run
[2019-10-13 22:17:49,952 INFO L206 PostProcessor]: Analyzing one entry point: main
[2019-10-13 22:17:50,013 INFO L192 MainTranslator]: Completed translation
[2019-10-13 22:17:50,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:17:50 WrapperNode
[2019-10-13 22:17:50,014 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-10-13 22:17:50,015 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-10-13 22:17:50,015 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2019-10-13 22:17:50,015 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2019-10-13 22:17:50,034 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:17:50" (1/1) ...
[2019-10-13 22:17:50,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:17:50" (1/1) ...
[2019-10-13 22:17:50,060 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:17:50" (1/1) ...
[2019-10-13 22:17:50,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:17:50" (1/1) ...
[2019-10-13 22:17:50,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:17:50" (1/1) ...
[2019-10-13 22:17:50,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:17:50" (1/1) ...
[2019-10-13 22:17:50,113 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:17:50" (1/1) ...
[2019-10-13 22:17:50,129 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-10-13 22:17:50,130 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-10-13 22:17:50,130 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2019-10-13 22:17:50,131 INFO L275 PluginConnector]: RCFGBuilder initialized
[2019-10-13 22:17:50,134 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:17:50" (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 22:17:50,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-10-13 22:17:50,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-10-13 22:17:50,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~X~$Pointer$~X~int~TO~VOID
[2019-10-13 22:17:50,205 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header
[2019-10-13 22:17:50,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc
[2019-10-13 22:17:50,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc
[2019-10-13 22:17:50,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int
[2019-10-13 22:17:50,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr
[2019-10-13 22:17:50,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong
[2019-10-13 22:17:50,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error
[2019-10-13 22:17:50,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop
[2019-10-13 22:17:50,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect
[2019-10-13 22:17:50,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap
[2019-10-13 22:17:50,210 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv
[2019-10-13 22:17:50,210 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_raw_init
[2019-10-13 22:17:50,210 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_raw_exit
[2019-10-13 22:17:50,212 INFO L138 BoogieDeclarations]: Found implementation of procedure rx
[2019-10-13 22:17:50,212 INFO L138 BoogieDeclarations]: Found implementation of procedure build_header
[2019-10-13 22:17:50,212 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_tx
[2019-10-13 22:17:50,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_ArcProto_1
[2019-10-13 22:17:50,213 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2019-10-13 22:17:50,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5
[2019-10-13 22:17:50,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6
[2019-10-13 22:17:50,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7
[2019-10-13 22:17:50,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8
[2019-10-13 22:17:50,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11
[2019-10-13 22:17:50,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_13
[2019-10-13 22:17:50,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_skb_14
[2019-10-13 22:17:50,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_15
[2019-10-13 22:17:50,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init
[2019-10-13 22:17:50,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add
[2019-10-13 22:17:50,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove
[2019-10-13 22:17:50,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains
[2019-10-13 22:17:50,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty
[2019-10-13 22:17:50,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err
[2019-10-13 22:17:50,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr
[2019-10-13 22:17:50,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err
[2019-10-13 22:17:50,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null
[2019-10-13 22:17:50,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc
[2019-10-13 22:17:50,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize
[2019-10-13 22:17:50,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free
[2019-10-13 22:17:50,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int
[2019-10-13 22:17:50,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb
[2019-10-13 22:17:50,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb
[2019-10-13 22:17:50,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current
[2019-10-13 22:17:50,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state
[2019-10-13 22:17:50,219 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_unregister_proto
[2019-10-13 22:17:50,220 INFO L138 BoogieDeclarations]: Found implementation of procedure printk
[2019-10-13 22:17:50,221 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull
[2019-10-13 22:17:50,221 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push
[2019-10-13 22:17:50,221 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put
[2019-10-13 22:17:50,221 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc
[2019-10-13 22:17:50,221 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree
[2019-10-13 22:17:50,222 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset
[2019-10-13 22:17:50,222 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit
[2019-10-13 22:17:50,222 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy
[2019-10-13 22:17:50,222 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-10-13 22:17:50,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect
[2019-10-13 22:17:50,223 INFO L130 BoogieDeclarations]: Found specification of procedure printk
[2019-10-13 22:17:50,223 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy
[2019-10-13 22:17:50,224 INFO L130 BoogieDeclarations]: Found specification of procedure memset
[2019-10-13 22:17:50,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6
[2019-10-13 22:17:50,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7
[2019-10-13 22:17:50,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8
[2019-10-13 22:17:50,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11
[2019-10-13 22:17:50,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_13
[2019-10-13 22:17:50,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5
[2019-10-13 22:17:50,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_skb_14
[2019-10-13 22:17:50,225 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put
[2019-10-13 22:17:50,225 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push
[2019-10-13 22:17:50,225 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull
[2019-10-13 22:17:50,225 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header
[2019-10-13 22:17:50,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2019-10-13 22:17:50,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2019-10-13 22:17:50,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc
[2019-10-13 22:17:50,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free
[2019-10-13 22:17:50,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int
[2019-10-13 22:17:50,264 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2019-10-13 22:17:50,264 INFO L130 BoogieDeclarations]: Found specification of procedure calloc
[2019-10-13 22:17:50,264 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-10-13 22:17:50,264 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort
[2019-10-13 22:17:50,265 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong
[2019-10-13 22:17:50,265 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer
[2019-10-13 22:17:50,265 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume
[2019-10-13 22:17:50,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc
[2019-10-13 22:17:50,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2019-10-13 22:17:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc
[2019-10-13 22:17:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit
[2019-10-13 22:17:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int
[2019-10-13 22:17:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr
[2019-10-13 22:17:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong
[2019-10-13 22:17:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error
[2019-10-13 22:17:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop
[2019-10-13 22:17:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap
[2019-10-13 22:17:50,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_ArcProto_1
[2019-10-13 22:17:50,267 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv
[2019-10-13 22:17:50,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_15
[2019-10-13 22:17:50,268 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_unregister_proto
[2019-10-13 22:17:50,268 INFO L130 BoogieDeclarations]: Found specification of procedure rx
[2019-10-13 22:17:50,268 INFO L130 BoogieDeclarations]: Found specification of procedure build_header
[2019-10-13 22:17:50,268 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_tx
[2019-10-13 22:17:50,268 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_raw_init
[2019-10-13 22:17:50,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2019-10-13 22:17:50,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2019-10-13 22:17:50,269 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_raw_exit
[2019-10-13 22:17:50,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy
[2019-10-13 22:17:50,269 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~X~$Pointer$~X~int~TO~VOID
[2019-10-13 22:17:50,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2019-10-13 22:17:50,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize
[2019-10-13 22:17:50,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state
[2019-10-13 22:17:50,270 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2019-10-13 22:17:50,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset
[2019-10-13 22:17:50,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2019-10-13 22:17:50,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init
[2019-10-13 22:17:50,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add
[2019-10-13 22:17:50,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove
[2019-10-13 22:17:50,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains
[2019-10-13 22:17:50,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty
[2019-10-13 22:17:50,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err
[2019-10-13 22:17:50,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr
[2019-10-13 22:17:50,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err
[2019-10-13 22:17:50,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null
[2019-10-13 22:17:50,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb
[2019-10-13 22:17:50,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb
[2019-10-13 22:17:50,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current
[2019-10-13 22:17:50,273 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc
[2019-10-13 22:17:50,273 INFO L130 BoogieDeclarations]: Found specification of procedure free
[2019-10-13 22:17:50,273 INFO L130 BoogieDeclarations]: Found specification of procedure kfree
[2019-10-13 22:17:50,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-10-13 22:17:50,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2019-10-13 22:17:50,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$
[2019-10-13 22:17:50,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-10-13 22:17:50,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$
[2019-10-13 22:17:50,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$
[2019-10-13 22:17:50,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int
[2019-10-13 22:17:50,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int
[2019-10-13 22:17:51,075 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true;
[2019-10-13 22:17:52,138 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-10-13 22:17:52,138 INFO L284 CfgBuilder]: Removed 4 assume(true) statements.
[2019-10-13 22:17:52,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:17:52 BoogieIcfgContainer
[2019-10-13 22:17:52,140 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-10-13 22:17:52,141 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-10-13 22:17:52,141 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2019-10-13 22:17:52,145 INFO L275 PluginConnector]: TraceAbstraction initialized
[2019-10-13 22:17:52,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:17:48" (1/3) ...
[2019-10-13 22:17:52,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c0655f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:17:52, skipping insertion in model container
[2019-10-13 22:17:52,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:17:50" (2/3) ...
[2019-10-13 22:17:52,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c0655f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:17:52, skipping insertion in model container
[2019-10-13 22:17:52,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:17:52" (3/3) ...
[2019-10-13 22:17:52,148 INFO L109 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--arc-rawmode.ko-entry_point.cil.out.i
[2019-10-13 22:17:52,158 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-10-13 22:17:52,167 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-10-13 22:17:52,180 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-10-13 22:17:52,206 INFO L373 AbstractCegarLoop]: Interprodecural is true
[2019-10-13 22:17:52,206 INFO L374 AbstractCegarLoop]: Hoare is true
[2019-10-13 22:17:52,206 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-10-13 22:17:52,206 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-10-13 22:17:52,206 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-10-13 22:17:52,207 INFO L378 AbstractCegarLoop]: Difference is false
[2019-10-13 22:17:52,207 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-10-13 22:17:52,207 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-10-13 22:17:52,233 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states.
[2019-10-13 22:17:52,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45
[2019-10-13 22:17:52,242 INFO L372 BasicCegarLoop]: Found error trace
[2019-10-13 22:17:52,243 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-13 22:17:52,245 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 22:17:52,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 22:17:52,251 INFO L82 PathProgramCache]: Analyzing trace with hash -689591432, now seen corresponding path program 1 times
[2019-10-13 22:17:52,260 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-10-13 22:17:52,261 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503716773]
[2019-10-13 22:17:52,261 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 22:17:52,261 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 22:17:52,261 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 22:17:52,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 22:17:52,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 22:17:52,663 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503716773]
[2019-10-13 22:17:52,664 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 22:17:52,664 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-10-13 22:17:52,664 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542619480]
[2019-10-13 22:17:52,669 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-10-13 22:17:52,669 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-10-13 22:17:52,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-10-13 22:17:52,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-10-13 22:17:52,686 INFO L87 Difference]: Start difference. First operand 212 states. Second operand 3 states.
[2019-10-13 22:17:52,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 22:17:52,846 INFO L93 Difference]: Finished difference Result 502 states and 648 transitions.
[2019-10-13 22:17:52,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2019-10-13 22:17:52,848 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44
[2019-10-13 22:17:52,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 22:17:52,863 INFO L225 Difference]: With dead ends: 502
[2019-10-13 22:17:52,863 INFO L226 Difference]: Without dead ends: 314
[2019-10-13 22:17:52,869 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-10-13 22:17:52,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states.
[2019-10-13 22:17:52,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314.
[2019-10-13 22:17:52,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 314 states.
[2019-10-13 22:17:52,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 384 transitions.
[2019-10-13 22:17:52,976 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 384 transitions. Word has length 44
[2019-10-13 22:17:52,976 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-10-13 22:17:52,977 INFO L462 AbstractCegarLoop]: Abstraction has 314 states and 384 transitions.
[2019-10-13 22:17:52,977 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-10-13 22:17:52,977 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 384 transitions.
[2019-10-13 22:17:52,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2019-10-13 22:17:52,982 INFO L372 BasicCegarLoop]: Found error trace
[2019-10-13 22:17:52,983 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-13 22:17:52,983 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 22:17:52,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 22:17:52,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1799100232, now seen corresponding path program 1 times
[2019-10-13 22:17:52,986 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-10-13 22:17:52,986 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389502560]
[2019-10-13 22:17:52,987 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 22:17:52,987 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 22:17:52,987 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 22:17:53,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 22:17:53,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 22:17:53,124 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389502560]
[2019-10-13 22:17:53,124 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 22:17:53,124 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-10-13 22:17:53,124 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732646692]
[2019-10-13 22:17:53,126 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-10-13 22:17:53,127 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-10-13 22:17:53,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-10-13 22:17:53,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-10-13 22:17:53,127 INFO L87 Difference]: Start difference. First operand 314 states and 384 transitions. Second operand 3 states.
[2019-10-13 22:17:53,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 22:17:53,177 INFO L93 Difference]: Finished difference Result 611 states and 751 transitions.
[2019-10-13 22:17:53,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2019-10-13 22:17:53,178 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45
[2019-10-13 22:17:53,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 22:17:53,182 INFO L225 Difference]: With dead ends: 611
[2019-10-13 22:17:53,182 INFO L226 Difference]: Without dead ends: 315
[2019-10-13 22:17:53,185 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-10-13 22:17:53,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states.
[2019-10-13 22:17:53,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315.
[2019-10-13 22:17:53,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states.
[2019-10-13 22:17:53,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 385 transitions.
[2019-10-13 22:17:53,217 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 385 transitions. Word has length 45
[2019-10-13 22:17:53,217 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-10-13 22:17:53,217 INFO L462 AbstractCegarLoop]: Abstraction has 315 states and 385 transitions.
[2019-10-13 22:17:53,218 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-10-13 22:17:53,218 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 385 transitions.
[2019-10-13 22:17:53,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47
[2019-10-13 22:17:53,221 INFO L372 BasicCegarLoop]: Found error trace
[2019-10-13 22:17:53,221 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-13 22:17:53,221 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 22:17:53,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 22:17:53,222 INFO L82 PathProgramCache]: Analyzing trace with hash -1042078497, now seen corresponding path program 1 times
[2019-10-13 22:17:53,222 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-10-13 22:17:53,222 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110817339]
[2019-10-13 22:17:53,222 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 22:17:53,222 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 22:17:53,223 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 22:17:53,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 22:17:53,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2019-10-13 22:17:53,339 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110817339]
[2019-10-13 22:17:53,340 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 22:17:53,340 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-10-13 22:17:53,341 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487716883]
[2019-10-13 22:17:53,342 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-10-13 22:17:53,342 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-10-13 22:17:53,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-10-13 22:17:53,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-10-13 22:17:53,343 INFO L87 Difference]: Start difference. First operand 315 states and 385 transitions. Second operand 5 states.
[2019-10-13 22:17:53,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 22:17:53,419 INFO L93 Difference]: Finished difference Result 611 states and 748 transitions.
[2019-10-13 22:17:53,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2019-10-13 22:17:53,419 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 46
[2019-10-13 22:17:53,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 22:17:53,422 INFO L225 Difference]: With dead ends: 611
[2019-10-13 22:17:53,422 INFO L226 Difference]: Without dead ends: 314
[2019-10-13 22:17:53,424 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2019-10-13 22:17:53,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states.
[2019-10-13 22:17:53,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314.
[2019-10-13 22:17:53,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 314 states.
[2019-10-13 22:17:53,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 381 transitions.
[2019-10-13 22:17:53,461 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 381 transitions. Word has length 46
[2019-10-13 22:17:53,461 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-10-13 22:17:53,461 INFO L462 AbstractCegarLoop]: Abstraction has 314 states and 381 transitions.
[2019-10-13 22:17:53,461 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-10-13 22:17:53,462 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 381 transitions.
[2019-10-13 22:17:53,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75
[2019-10-13 22:17:53,465 INFO L372 BasicCegarLoop]: Found error trace
[2019-10-13 22:17:53,465 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 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]
[2019-10-13 22:17:53,466 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 22:17:53,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 22:17:53,466 INFO L82 PathProgramCache]: Analyzing trace with hash -1264666465, now seen corresponding path program 1 times
[2019-10-13 22:17:53,466 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-10-13 22:17:53,466 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586112360]
[2019-10-13 22:17:53,467 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 22:17:53,467 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 22:17:53,467 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 22:17:53,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 22:17:53,650 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2019-10-13 22:17:53,651 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586112360]
[2019-10-13 22:17:53,651 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 22:17:53,651 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2019-10-13 22:17:53,651 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282345881]
[2019-10-13 22:17:53,652 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-10-13 22:17:53,652 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-10-13 22:17:53,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-10-13 22:17:53,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2019-10-13 22:17:53,653 INFO L87 Difference]: Start difference. First operand 314 states and 381 transitions. Second operand 6 states.
[2019-10-13 22:17:53,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 22:17:53,999 INFO L93 Difference]: Finished difference Result 618 states and 760 transitions.
[2019-10-13 22:17:53,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2019-10-13 22:17:53,999 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 74
[2019-10-13 22:17:54,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 22:17:54,010 INFO L225 Difference]: With dead ends: 618
[2019-10-13 22:17:54,010 INFO L226 Difference]: Without dead ends: 601
[2019-10-13 22:17:54,011 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2019-10-13 22:17:54,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states.
[2019-10-13 22:17:54,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601.
[2019-10-13 22:17:54,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states.
[2019-10-13 22:17:54,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 743 transitions.
[2019-10-13 22:17:54,077 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 743 transitions. Word has length 74
[2019-10-13 22:17:54,077 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-10-13 22:17:54,077 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 743 transitions.
[2019-10-13 22:17:54,078 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-10-13 22:17:54,078 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 743 transitions.
[2019-10-13 22:17:54,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116
[2019-10-13 22:17:54,085 INFO L372 BasicCegarLoop]: Found error trace
[2019-10-13 22:17:54,085 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 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 22:17:54,086 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 22:17:54,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 22:17:54,086 INFO L82 PathProgramCache]: Analyzing trace with hash -756196454, now seen corresponding path program 1 times
[2019-10-13 22:17:54,086 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-10-13 22:17:54,087 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459175389]
[2019-10-13 22:17:54,087 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 22:17:54,087 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 22:17:54,087 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 22:17:54,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 22:17:54,211 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked.
[2019-10-13 22:17:54,211 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459175389]
[2019-10-13 22:17:54,211 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 22:17:54,211 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-10-13 22:17:54,212 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879007558]
[2019-10-13 22:17:54,213 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-10-13 22:17:54,214 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-10-13 22:17:54,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-10-13 22:17:54,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-10-13 22:17:54,215 INFO L87 Difference]: Start difference. First operand 601 states and 743 transitions. Second operand 3 states.
[2019-10-13 22:17:54,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 22:17:54,262 INFO L93 Difference]: Finished difference Result 994 states and 1232 transitions.
[2019-10-13 22:17:54,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2019-10-13 22:17:54,263 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115
[2019-10-13 22:17:54,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 22:17:54,267 INFO L225 Difference]: With dead ends: 994
[2019-10-13 22:17:54,268 INFO L226 Difference]: Without dead ends: 411
[2019-10-13 22:17:54,270 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-10-13 22:17:54,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states.
[2019-10-13 22:17:54,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 380.
[2019-10-13 22:17:54,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states.
[2019-10-13 22:17:54,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 474 transitions.
[2019-10-13 22:17:54,299 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 474 transitions. Word has length 115
[2019-10-13 22:17:54,300 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-10-13 22:17:54,300 INFO L462 AbstractCegarLoop]: Abstraction has 380 states and 474 transitions.
[2019-10-13 22:17:54,300 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-10-13 22:17:54,300 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 474 transitions.
[2019-10-13 22:17:54,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116
[2019-10-13 22:17:54,307 INFO L372 BasicCegarLoop]: Found error trace
[2019-10-13 22:17:54,307 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 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 22:17:54,308 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 22:17:54,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 22:17:54,308 INFO L82 PathProgramCache]: Analyzing trace with hash 1792266860, now seen corresponding path program 2 times
[2019-10-13 22:17:54,308 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-10-13 22:17:54,309 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116093028]
[2019-10-13 22:17:54,309 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 22:17:54,309 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 22:17:54,309 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 22:17:54,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 22:17:54,488 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked.
[2019-10-13 22:17:54,488 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116093028]
[2019-10-13 22:17:54,488 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 22:17:54,488 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-10-13 22:17:54,489 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513437703]
[2019-10-13 22:17:54,489 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-10-13 22:17:54,489 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-10-13 22:17:54,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-10-13 22:17:54,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-10-13 22:17:54,490 INFO L87 Difference]: Start difference. First operand 380 states and 474 transitions. Second operand 5 states.
[2019-10-13 22:17:54,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 22:17:54,525 INFO L93 Difference]: Finished difference Result 735 states and 932 transitions.
[2019-10-13 22:17:54,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2019-10-13 22:17:54,526 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 115
[2019-10-13 22:17:54,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 22:17:54,529 INFO L225 Difference]: With dead ends: 735
[2019-10-13 22:17:54,529 INFO L226 Difference]: Without dead ends: 394
[2019-10-13 22:17:54,530 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-10-13 22:17:54,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states.
[2019-10-13 22:17:54,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 390.
[2019-10-13 22:17:54,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 390 states.
[2019-10-13 22:17:54,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 488 transitions.
[2019-10-13 22:17:54,550 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 488 transitions. Word has length 115
[2019-10-13 22:17:54,551 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-10-13 22:17:54,551 INFO L462 AbstractCegarLoop]: Abstraction has 390 states and 488 transitions.
[2019-10-13 22:17:54,551 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-10-13 22:17:54,551 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 488 transitions.
[2019-10-13 22:17:54,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120
[2019-10-13 22:17:54,553 INFO L372 BasicCegarLoop]: Found error trace
[2019-10-13 22:17:54,553 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:17:54,554 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 22:17:54,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 22:17:54,554 INFO L82 PathProgramCache]: Analyzing trace with hash 444222310, now seen corresponding path program 1 times
[2019-10-13 22:17:54,554 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-10-13 22:17:54,555 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054577328]
[2019-10-13 22:17:54,555 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 22:17:54,555 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 22:17:54,555 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 22:17:54,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 22:17:54,651 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked.
[2019-10-13 22:17:54,651 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054577328]
[2019-10-13 22:17:54,652 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 22:17:54,652 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-13 22:17:54,652 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640591089]
[2019-10-13 22:17:54,652 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-13 22:17:54,653 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-10-13 22:17:54,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-13 22:17:54,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-13 22:17:54,653 INFO L87 Difference]: Start difference. First operand 390 states and 488 transitions. Second operand 4 states.
[2019-10-13 22:17:54,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 22:17:54,687 INFO L93 Difference]: Finished difference Result 757 states and 952 transitions.
[2019-10-13 22:17:54,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2019-10-13 22:17:54,689 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 119
[2019-10-13 22:17:54,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 22:17:54,694 INFO L225 Difference]: With dead ends: 757
[2019-10-13 22:17:54,694 INFO L226 Difference]: Without dead ends: 391
[2019-10-13 22:17:54,696 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2019-10-13 22:17:54,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states.
[2019-10-13 22:17:54,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 391.
[2019-10-13 22:17:54,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states.
[2019-10-13 22:17:54,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 489 transitions.
[2019-10-13 22:17:54,716 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 489 transitions. Word has length 119
[2019-10-13 22:17:54,717 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-10-13 22:17:54,717 INFO L462 AbstractCegarLoop]: Abstraction has 391 states and 489 transitions.
[2019-10-13 22:17:54,717 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-13 22:17:54,717 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 489 transitions.
[2019-10-13 22:17:54,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121
[2019-10-13 22:17:54,719 INFO L372 BasicCegarLoop]: Found error trace
[2019-10-13 22:17:54,719 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:17:54,720 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 22:17:54,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 22:17:54,720 INFO L82 PathProgramCache]: Analyzing trace with hash 671415591, now seen corresponding path program 1 times
[2019-10-13 22:17:54,720 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-10-13 22:17:54,720 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179236575]
[2019-10-13 22:17:54,721 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 22:17:54,721 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 22:17:54,721 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 22:17:54,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 22:17:54,833 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked.
[2019-10-13 22:17:54,833 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179236575]
[2019-10-13 22:17:54,833 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [184697912]
[2019-10-13 22:17:54,834 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 22:17:55,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 22:17:55,186 INFO L256 TraceCheckSpWp]: Trace formula consists of 905 conjuncts, 3 conjunts are in the unsatisfiable core
[2019-10-13 22:17:55,205 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2019-10-13 22:17:55,266 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2019-10-13 22:17:55,267 INFO L321 TraceCheckSpWp]: Computing backward predicates...
[2019-10-13 22:17:55,467 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked.
[2019-10-13 22:17:55,468 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [298659034]
[2019-10-13 22:17:55,505 INFO L162 IcfgInterpreter]: Started Sifa with 100 locations of interest
[2019-10-13 22:17:55,505 INFO L169 IcfgInterpreter]: Building call graph
[2019-10-13 22:17:55,512 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start]
[2019-10-13 22:17:55,521 INFO L179 IcfgInterpreter]: Starting interpretation
[2019-10-13 22:17:55,521 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs
[2019-10-13 22:17:56,677 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 97 for LOIs
[2019-10-13 22:17:56,763 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 255 for LOIs
[2019-10-13 22:17:57,468 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 83
[2019-10-13 22:17:57,895 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2019-10-13 22:17:57,896 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception:
java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:307)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:184)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:174)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.<init>(TraceAbstractionRefinementEngine.java:85)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.<init>(TraceAbstractionStarter.java:122)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε
at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97)
at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135)
at java.lang.Iterable.forEach(Iterable.java:75)
at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080)
at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135)
at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104)
at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78)
at java.util.HashMap.computeIfAbsent(HashMap.java:1127)
at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67)
at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230)
at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214)
at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197)
at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166)
at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130)
at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139)
at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.<init>(SifaRunner.java:102)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:299)
... 21 more
[2019-10-13 22:17:57,903 INFO L168 Benchmark]: Toolchain (without parser) took 9252.27 ms. Allocated memory was 139.5 MB in the beginning and 361.2 MB in the end (delta: 221.8 MB). Free memory was 96.5 MB in the beginning and 85.3 MB in the end (delta: 11.2 MB). Peak memory consumption was 232.9 MB. Max. memory is 7.1 GB.
[2019-10-13 22:17:57,903 INFO L168 Benchmark]: CDTParser took 1.25 ms. Allocated memory is still 139.5 MB. Free memory is still 122.3 MB. There was no memory consumed. Max. memory is 7.1 GB.
[2019-10-13 22:17:57,904 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1359.82 ms. Allocated memory was 139.5 MB in the beginning and 208.7 MB in the end (delta: 69.2 MB). Free memory was 96.1 MB in the beginning and 109.7 MB in the end (delta: -13.6 MB). Peak memory consumption was 60.8 MB. Max. memory is 7.1 GB.
[2019-10-13 22:17:57,905 INFO L168 Benchmark]: Boogie Preprocessor took 115.03 ms. Allocated memory is still 208.7 MB. Free memory was 109.7 MB in the beginning and 103.4 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 7.1 GB.
[2019-10-13 22:17:57,906 INFO L168 Benchmark]: RCFGBuilder took 2009.56 ms. Allocated memory was 208.7 MB in the beginning and 262.7 MB in the end (delta: 54.0 MB). Free memory was 103.4 MB in the beginning and 193.9 MB in the end (delta: -90.5 MB). Peak memory consumption was 68.1 MB. Max. memory is 7.1 GB.
[2019-10-13 22:17:57,907 INFO L168 Benchmark]: TraceAbstraction took 5759.32 ms. Allocated memory was 262.7 MB in the beginning and 361.2 MB in the end (delta: 98.6 MB). Free memory was 193.9 MB in the beginning and 85.3 MB in the end (delta: 108.5 MB). Peak memory consumption was 207.1 MB. Max. memory is 7.1 GB.
[2019-10-13 22:17:57,914 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 1.25 ms. Allocated memory is still 139.5 MB. Free memory is still 122.3 MB. There was no memory consumed. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 1359.82 ms. Allocated memory was 139.5 MB in the beginning and 208.7 MB in the end (delta: 69.2 MB). Free memory was 96.1 MB in the beginning and 109.7 MB in the end (delta: -13.6 MB). Peak memory consumption was 60.8 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 115.03 ms. Allocated memory is still 208.7 MB. Free memory was 109.7 MB in the beginning and 103.4 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 2009.56 ms. Allocated memory was 208.7 MB in the beginning and 262.7 MB in the end (delta: 54.0 MB). Free memory was 103.4 MB in the beginning and 193.9 MB in the end (delta: -90.5 MB). Peak memory consumption was 68.1 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 5759.32 ms. Allocated memory was 262.7 MB in the beginning and 361.2 MB in the end (delta: 98.6 MB). Free memory was 193.9 MB in the beginning and 85.3 MB in the end (delta: 108.5 MB). Peak memory consumption was 207.1 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε
de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:307)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
Received shutdown request...