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_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--can--can-dev.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 08:57:45,263 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 08:57:45,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 08:57:45,287 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 08:57:45,288 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 08:57:45,290 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 08:57:45,293 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 08:57:45,303 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 08:57:45,307 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 08:57:45,307 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 08:57:45,308 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 08:57:45,309 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 08:57:45,310 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 08:57:45,311 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 08:57:45,312 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 08:57:45,313 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 08:57:45,314 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 08:57:45,315 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 08:57:45,317 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 08:57:45,319 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 08:57:45,320 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 08:57:45,321 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 08:57:45,323 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 08:57:45,323 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 08:57:45,325 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 08:57:45,325 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 08:57:45,326 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 08:57:45,327 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 08:57:45,327 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 08:57:45,328 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 08:57:45,328 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 08:57:45,329 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 08:57:45,330 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 08:57:45,331 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 08:57:45,332 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 08:57:45,332 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 08:57:45,333 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 08:57:45,333 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 08:57:45,333 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 08:57:45,334 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 08:57:45,335 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 08:57:45,335 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 [2019-10-07 08:57:45,367 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 08:57:45,367 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 08:57:45,370 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 08:57:45,370 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 08:57:45,370 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 08:57:45,371 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 08:57:45,371 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 08:57:45,371 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 08:57:45,372 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 08:57:45,372 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 08:57:45,373 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 08:57:45,373 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 08:57:45,373 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 08:57:45,373 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 08:57:45,373 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 08:57:45,374 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 08:57:45,374 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 08:57:45,374 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 08:57:45,375 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 08:57:45,376 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 08:57:45,376 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 08:57:45,376 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 08:57:45,377 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 08:57:45,377 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 08:57:45,377 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 08:57:45,377 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 08:57:45,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 08:57:45,378 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 08:57:45,378 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 [2019-10-07 08:57:45,676 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 08:57:45,699 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 08:57:45,703 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 08:57:45,704 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 08:57:45,705 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 08:57:45,706 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--can--can-dev.ko-entry_point.cil.out.i [2019-10-07 08:57:45,771 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6a4bfc10/abe5f4968fce4babbbec29a3c7def02b/FLAGa0097cfd5 [2019-10-07 08:57:46,608 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 08:57:46,608 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--can--can-dev.ko-entry_point.cil.out.i [2019-10-07 08:57:46,650 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6a4bfc10/abe5f4968fce4babbbec29a3c7def02b/FLAGa0097cfd5 [2019-10-07 08:57:47,119 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6a4bfc10/abe5f4968fce4babbbec29a3c7def02b [2019-10-07 08:57:47,130 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 08:57:47,132 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 08:57:47,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 08:57:47,133 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 08:57:47,136 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 08:57:47,137 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 08:57:47" (1/1) ... [2019-10-07 08:57:47,141 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76bd308c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 08:57:47, skipping insertion in model container [2019-10-07 08:57:47,141 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 08:57:47" (1/1) ... [2019-10-07 08:57:47,148 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 08:57:47,308 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 08:57:49,413 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 08:57:49,471 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 08:57:49,859 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 08:57:50,299 INFO L192 MainTranslator]: Completed translation [2019-10-07 08:57:50,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 08:57:50 WrapperNode [2019-10-07 08:57:50,300 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 08:57:50,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 08:57:50,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 08:57:50,301 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 08:57:50,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 08:57:50" (1/1) ... [2019-10-07 08:57:50,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 08:57:50" (1/1) ... [2019-10-07 08:57:50,430 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 08:57:50" (1/1) ... [2019-10-07 08:57:50,431 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 08:57:50" (1/1) ... [2019-10-07 08:57:50,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 08:57:50" (1/1) ... [2019-10-07 08:57:50,559 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 08:57:50" (1/1) ... [2019-10-07 08:57:50,611 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 08:57:50" (1/1) ... [2019-10-07 08:57:50,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 08:57:50,644 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 08:57:50,644 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 08:57:50,644 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 08:57:50,645 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 08:57:50" (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 [2019-10-07 08:57:50,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 08:57:50,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 08:57:50,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2019-10-07 08:57:50,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2019-10-07 08:57:50,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-10-07 08:57:50,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2019-10-07 08:57:50,718 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-10-07 08:57:50,719 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2019-10-07 08:57:50,719 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2019-10-07 08:57:50,719 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2019-10-07 08:57:50,719 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_shared [2019-10-07 08:57:50,720 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2019-10-07 08:57:50,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-07 08:57:50,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-07 08:57:50,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-07 08:57:50,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-07 08:57:50,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-07 08:57:50,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-07 08:57:50,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-07 08:57:50,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-07 08:57:50,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-07 08:57:50,724 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2019-10-07 08:57:50,724 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2019-10-07 08:57:50,724 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_attr_size [2019-10-07 08:57:50,724 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_total_size [2019-10-07 08:57:50,725 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_data [2019-10-07 08:57:50,725 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_put_u32 [2019-10-07 08:57:50,725 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_get_u32 [2019-10-07 08:57:50,725 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_hold [2019-10-07 08:57:50,725 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_put [2019-10-07 08:57:50,725 INFO L138 BoogieDeclarations]: Found implementation of procedure can_skb_prv [2019-10-07 08:57:50,725 INFO L138 BoogieDeclarations]: Found implementation of procedure can_skb_reserve [2019-10-07 08:57:50,726 INFO L138 BoogieDeclarations]: Found implementation of procedure can_skb_destructor [2019-10-07 08:57:50,726 INFO L138 BoogieDeclarations]: Found implementation of procedure can_skb_set_owner [2019-10-07 08:57:50,727 INFO L138 BoogieDeclarations]: Found implementation of procedure can_create_echo_skb [2019-10-07 08:57:50,727 INFO L138 BoogieDeclarations]: Found implementation of procedure can_dlc2len [2019-10-07 08:57:50,727 INFO L138 BoogieDeclarations]: Found implementation of procedure can_len2dlc [2019-10-07 08:57:50,727 INFO L138 BoogieDeclarations]: Found implementation of procedure can_update_spt [2019-10-07 08:57:50,727 INFO L138 BoogieDeclarations]: Found implementation of procedure can_calc_bittiming [2019-10-07 08:57:50,728 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fixup_bittiming [2019-10-07 08:57:50,728 INFO L138 BoogieDeclarations]: Found implementation of procedure can_get_bittiming [2019-10-07 08:57:50,728 INFO L138 BoogieDeclarations]: Found implementation of procedure can_flush_echo_skb [2019-10-07 08:57:50,728 INFO L138 BoogieDeclarations]: Found implementation of procedure can_put_echo_skb [2019-10-07 08:57:50,728 INFO L138 BoogieDeclarations]: Found implementation of procedure can_get_echo_skb [2019-10-07 08:57:50,728 INFO L138 BoogieDeclarations]: Found implementation of procedure can_free_echo_skb [2019-10-07 08:57:50,728 INFO L138 BoogieDeclarations]: Found implementation of procedure can_restart [2019-10-07 08:57:50,729 INFO L138 BoogieDeclarations]: Found implementation of procedure can_restart_now [2019-10-07 08:57:50,729 INFO L138 BoogieDeclarations]: Found implementation of procedure can_bus_off [2019-10-07 08:57:50,729 INFO L138 BoogieDeclarations]: Found implementation of procedure can_setup [2019-10-07 08:57:50,729 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_can_skb [2019-10-07 08:57:50,729 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_canfd_skb [2019-10-07 08:57:50,729 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_can_err_skb [2019-10-07 08:57:50,729 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_candev [2019-10-07 08:57:50,730 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2019-10-07 08:57:50,730 INFO L138 BoogieDeclarations]: Found implementation of procedure can_change_mtu [2019-10-07 08:57:50,731 INFO L138 BoogieDeclarations]: Found implementation of procedure open_candev [2019-10-07 08:57:50,731 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2019-10-07 08:57:50,731 INFO L138 BoogieDeclarations]: Found implementation of procedure can_changelink [2019-10-07 08:57:50,731 INFO L138 BoogieDeclarations]: Found implementation of procedure can_get_size [2019-10-07 08:57:50,731 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fill_info [2019-10-07 08:57:50,732 INFO L138 BoogieDeclarations]: Found implementation of procedure can_get_xstats_size [2019-10-07 08:57:50,732 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fill_xstats [2019-10-07 08:57:50,732 INFO L138 BoogieDeclarations]: Found implementation of procedure can_newlink [2019-10-07 08:57:50,733 INFO L138 BoogieDeclarations]: Found implementation of procedure register_candev [2019-10-07 08:57:50,733 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_candev [2019-10-07 08:57:50,733 INFO L138 BoogieDeclarations]: Found implementation of procedure safe_candev_priv [2019-10-07 08:57:50,733 INFO L138 BoogieDeclarations]: Found implementation of procedure can_dev_init [2019-10-07 08:57:50,733 INFO L138 BoogieDeclarations]: Found implementation of procedure can_dev_exit [2019-10-07 08:57:50,733 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_init_1 [2019-10-07 08:57:50,733 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2019-10-07 08:57:50,734 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_2 [2019-10-07 08:57:50,734 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2019-10-07 08:57:50,734 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_2 [2019-10-07 08:57:50,735 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_2 [2019-10-07 08:57:50,735 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2019-10-07 08:57:50,735 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2019-10-07 08:57:50,736 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2019-10-07 08:57:50,736 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_1 [2019-10-07 08:57:50,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2019-10-07 08:57:50,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_rtnl_link_ops_4 [2019-10-07 08:57:50,738 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 08:57:50,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2019-10-07 08:57:50,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2019-10-07 08:57:50,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2019-10-07 08:57:50,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2019-10-07 08:57:50,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2019-10-07 08:57:50,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_12 [2019-10-07 08:57:50,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_14 [2019-10-07 08:57:50,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_15 [2019-10-07 08:57:50,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_16 [2019-10-07 08:57:50,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_17 [2019-10-07 08:57:50,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_18 [2019-10-07 08:57:50,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_19 [2019-10-07 08:57:50,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_20 [2019-10-07 08:57:50,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_21 [2019-10-07 08:57:50,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_22 [2019-10-07 08:57:50,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_23 [2019-10-07 08:57:50,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_24 [2019-10-07 08:57:50,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb_25 [2019-10-07 08:57:50,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_27 [2019-10-07 08:57:50,742 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_notifier_info_to_dev [2019-10-07 08:57:50,742 INFO L138 BoogieDeclarations]: Found implementation of procedure can_led_event [2019-10-07 08:57:50,742 INFO L138 BoogieDeclarations]: Found implementation of procedure can_led_release [2019-10-07 08:57:50,742 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_can_led_init [2019-10-07 08:57:50,742 INFO L138 BoogieDeclarations]: Found implementation of procedure can_led_notifier [2019-10-07 08:57:50,743 INFO L138 BoogieDeclarations]: Found implementation of procedure can_led_notifier_init [2019-10-07 08:57:50,743 INFO L138 BoogieDeclarations]: Found implementation of procedure can_led_notifier_exit [2019-10-07 08:57:50,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_main_exported_3 [2019-10-07 08:57:50,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_35 [2019-10-07 08:57:50,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_36 [2019-10-07 08:57:50,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_37 [2019-10-07 08:57:50,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_38 [2019-10-07 08:57:50,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_41 [2019-10-07 08:57:50,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_42 [2019-10-07 08:57:50,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2019-10-07 08:57:50,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2019-10-07 08:57:50,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2019-10-07 08:57:50,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2019-10-07 08:57:50,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2019-10-07 08:57:50,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-07 08:57:50,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-07 08:57:50,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-07 08:57:50,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-07 08:57:50,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2019-10-07 08:57:50,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-07 08:57:50,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2019-10-07 08:57:50,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2019-10-07 08:57:50,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2019-10-07 08:57:50,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2019-10-07 08:57:50,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2019-10-07 08:57:50,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-07 08:57:50,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __devres_alloc [2019-10-07 08:57:50,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2019-10-07 08:57:50,750 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_netdev_mqs [2019-10-07 08:57:50,753 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2019-10-07 08:57:50,753 INFO L138 BoogieDeclarations]: Found implementation of procedure devres_add [2019-10-07 08:57:50,753 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2019-10-07 08:57:50,754 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2019-10-07 08:57:50,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_4 [2019-10-07 08:57:50,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2019-10-07 08:57:50,755 INFO L138 BoogieDeclarations]: Found implementation of procedure led_trigger_blink_oneshot [2019-10-07 08:57:50,755 INFO L138 BoogieDeclarations]: Found implementation of procedure led_trigger_event [2019-10-07 08:57:50,755 INFO L138 BoogieDeclarations]: Found implementation of procedure led_trigger_register_simple [2019-10-07 08:57:50,755 INFO L138 BoogieDeclarations]: Found implementation of procedure led_trigger_rename_static [2019-10-07 08:57:50,762 INFO L138 BoogieDeclarations]: Found implementation of procedure led_trigger_unregister_simple [2019-10-07 08:57:50,762 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2019-10-07 08:57:50,762 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2019-10-07 08:57:50,762 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2019-10-07 08:57:50,763 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2019-10-07 08:57:50,763 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2019-10-07 08:57:50,763 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_put [2019-10-07 08:57:50,763 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-07 08:57:50,764 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2019-10-07 08:57:50,764 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdevice_notifier [2019-10-07 08:57:50,764 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_is_locked [2019-10-07 08:57:50,764 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_link_register [2019-10-07 08:57:50,764 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_link_unregister [2019-10-07 08:57:50,764 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_free [2019-10-07 08:57:50,764 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_clone [2019-10-07 08:57:50,765 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-10-07 08:57:50,765 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2019-10-07 08:57:50,765 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdevice_notifier [2019-10-07 08:57:50,765 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-07 08:57:50,765 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-07 08:57:50,765 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-07 08:57:50,765 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-07 08:57:50,766 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-07 08:57:50,766 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 08:57:50,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-07 08:57:50,766 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-10-07 08:57:50,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 08:57:50,766 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-07 08:57:50,766 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2019-10-07 08:57:50,767 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2019-10-07 08:57:50,767 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-07 08:57:50,767 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-07 08:57:50,767 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2019-10-07 08:57:50,767 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2019-10-07 08:57:50,767 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2019-10-07 08:57:50,767 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2019-10-07 08:57:50,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_23 [2019-10-07 08:57:50,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_24 [2019-10-07 08:57:50,768 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2019-10-07 08:57:50,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_27 [2019-10-07 08:57:50,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2019-10-07 08:57:50,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2019-10-07 08:57:50,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2019-10-07 08:57:50,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2019-10-07 08:57:50,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_12 [2019-10-07 08:57:50,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_14 [2019-10-07 08:57:50,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_16 [2019-10-07 08:57:50,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_17 [2019-10-07 08:57:50,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_18 [2019-10-07 08:57:50,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_19 [2019-10-07 08:57:50,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_21 [2019-10-07 08:57:50,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2019-10-07 08:57:50,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_15 [2019-10-07 08:57:50,770 INFO L130 BoogieDeclarations]: Found specification of procedure skb_clone [2019-10-07 08:57:50,770 INFO L130 BoogieDeclarations]: Found specification of procedure skb_shared [2019-10-07 08:57:50,770 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-10-07 08:57:50,770 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2019-10-07 08:57:50,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 08:57:50,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 08:57:50,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 08:57:50,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb_25 [2019-10-07 08:57:50,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2019-10-07 08:57:50,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2019-10-07 08:57:50,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2019-10-07 08:57:50,771 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 08:57:50,771 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-07 08:57:50,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 08:57:50,772 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-07 08:57:50,772 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-07 08:57:50,772 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-07 08:57:50,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-07 08:57:50,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 08:57:50,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-07 08:57:50,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-07 08:57:50,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-07 08:57:50,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-07 08:57:50,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-07 08:57:50,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-07 08:57:50,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-07 08:57:50,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-07 08:57:50,773 INFO L130 BoogieDeclarations]: Found specification of procedure timer_init_1 [2019-10-07 08:57:50,773 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2019-10-07 08:57:50,773 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_2 [2019-10-07 08:57:50,773 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2019-10-07 08:57:50,774 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_2 [2019-10-07 08:57:50,774 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_2 [2019-10-07 08:57:50,774 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2019-10-07 08:57:50,774 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2019-10-07 08:57:50,774 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2019-10-07 08:57:50,774 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_1 [2019-10-07 08:57:50,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2019-10-07 08:57:50,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_rtnl_link_ops_4 [2019-10-07 08:57:50,775 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2019-10-07 08:57:50,775 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2019-10-07 08:57:50,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_20 [2019-10-07 08:57:50,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_22 [2019-10-07 08:57:50,775 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2019-10-07 08:57:50,775 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2019-10-07 08:57:50,775 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2019-10-07 08:57:50,775 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_netdev_mqs [2019-10-07 08:57:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2019-10-07 08:57:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2019-10-07 08:57:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2019-10-07 08:57:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2019-10-07 08:57:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure can_led_notifier_init [2019-10-07 08:57:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure can_led_notifier_exit [2019-10-07 08:57:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure can_dlc2len [2019-10-07 08:57:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure can_len2dlc [2019-10-07 08:57:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_candev [2019-10-07 08:57:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2019-10-07 08:57:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure safe_candev_priv [2019-10-07 08:57:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure open_candev [2019-10-07 08:57:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2019-10-07 08:57:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure can_change_mtu [2019-10-07 08:57:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure register_candev [2019-10-07 08:57:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_candev [2019-10-07 08:57:50,778 INFO L130 BoogieDeclarations]: Found specification of procedure can_restart_now [2019-10-07 08:57:50,782 INFO L130 BoogieDeclarations]: Found specification of procedure can_bus_off [2019-10-07 08:57:50,782 INFO L130 BoogieDeclarations]: Found specification of procedure can_put_echo_skb [2019-10-07 08:57:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure can_get_echo_skb [2019-10-07 08:57:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure can_free_echo_skb [2019-10-07 08:57:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_can_skb [2019-10-07 08:57:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_canfd_skb [2019-10-07 08:57:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_can_err_skb [2019-10-07 08:57:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_is_locked [2019-10-07 08:57:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure nla_put [2019-10-07 08:57:50,784 INFO L130 BoogieDeclarations]: Found specification of procedure nla_attr_size [2019-10-07 08:57:50,784 INFO L130 BoogieDeclarations]: Found specification of procedure nla_total_size [2019-10-07 08:57:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure nla_data [2019-10-07 08:57:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure nla_put_u32 [2019-10-07 08:57:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 08:57:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 08:57:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure nla_get_u32 [2019-10-07 08:57:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_link_register [2019-10-07 08:57:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_link_unregister [2019-10-07 08:57:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure sock_hold [2019-10-07 08:57:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure sk_free [2019-10-07 08:57:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure sock_put [2019-10-07 08:57:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure can_skb_prv [2019-10-07 08:57:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure can_skb_reserve [2019-10-07 08:57:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure can_skb_destructor [2019-10-07 08:57:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure can_skb_set_owner [2019-10-07 08:57:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure can_create_echo_skb [2019-10-07 08:57:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure can_update_spt [2019-10-07 08:57:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure can_calc_bittiming [2019-10-07 08:57:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure can_fixup_bittiming [2019-10-07 08:57:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure can_get_bittiming [2019-10-07 08:57:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure can_flush_echo_skb [2019-10-07 08:57:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure can_restart [2019-10-07 08:57:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2019-10-07 08:57:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure can_setup [2019-10-07 08:57:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-07 08:57:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure can_changelink [2019-10-07 08:57:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-07 08:57:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2019-10-07 08:57:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure can_get_size [2019-10-07 08:57:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure can_fill_info [2019-10-07 08:57:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-10-07 08:57:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure can_get_xstats_size [2019-10-07 08:57:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure can_fill_xstats [2019-10-07 08:57:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure can_newlink [2019-10-07 08:57:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure can_dev_init [2019-10-07 08:57:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure can_dev_exit [2019-10-07 08:57:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2019-10-07 08:57:50,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-07 08:57:50,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-07 08:57:50,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_4 [2019-10-07 08:57:50,791 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2019-10-07 08:57:50,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_main_exported_3 [2019-10-07 08:57:50,791 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 08:57:50,791 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-10-07 08:57:50,791 INFO L130 BoogieDeclarations]: Found specification of procedure __devres_alloc [2019-10-07 08:57:50,791 INFO L130 BoogieDeclarations]: Found specification of procedure devres_add [2019-10-07 08:57:50,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_36 [2019-10-07 08:57:50,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_37 [2019-10-07 08:57:50,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_38 [2019-10-07 08:57:50,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_41 [2019-10-07 08:57:50,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_42 [2019-10-07 08:57:50,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_35 [2019-10-07 08:57:50,792 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdevice_notifier [2019-10-07 08:57:50,792 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdevice_notifier [2019-10-07 08:57:50,792 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_notifier_info_to_dev [2019-10-07 08:57:50,793 INFO L130 BoogieDeclarations]: Found specification of procedure led_trigger_register_simple [2019-10-07 08:57:50,793 INFO L130 BoogieDeclarations]: Found specification of procedure led_trigger_unregister_simple [2019-10-07 08:57:50,793 INFO L130 BoogieDeclarations]: Found specification of procedure led_trigger_event [2019-10-07 08:57:50,793 INFO L130 BoogieDeclarations]: Found specification of procedure led_trigger_blink_oneshot [2019-10-07 08:57:50,793 INFO L130 BoogieDeclarations]: Found specification of procedure led_trigger_rename_static [2019-10-07 08:57:50,793 INFO L130 BoogieDeclarations]: Found specification of procedure can_led_event [2019-10-07 08:57:50,793 INFO L130 BoogieDeclarations]: Found specification of procedure devm_can_led_init [2019-10-07 08:57:50,793 INFO L130 BoogieDeclarations]: Found specification of procedure can_led_release [2019-10-07 08:57:50,793 INFO L130 BoogieDeclarations]: Found specification of procedure can_led_notifier [2019-10-07 08:57:50,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2019-10-07 08:57:50,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2019-10-07 08:57:50,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2019-10-07 08:57:50,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2019-10-07 08:57:50,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2019-10-07 08:57:50,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-07 08:57:50,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-07 08:57:50,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-07 08:57:50,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-07 08:57:50,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2019-10-07 08:57:50,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2019-10-07 08:57:50,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2019-10-07 08:57:50,795 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-07 08:57:50,795 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 08:57:50,795 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-07 08:57:50,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 08:57:50,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 08:57:50,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-07 08:57:50,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 08:57:50,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-07 08:57:50,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-07 08:57:50,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-07 08:57:50,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-07 08:57:51,956 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-07 08:58:13,591 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 08:58:13,591 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 08:58:13,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 08:58:13 BoogieIcfgContainer [2019-10-07 08:58:13,595 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 08:58:13,596 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 08:58:13,596 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 08:58:13,599 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 08:58:13,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 08:57:47" (1/3) ... [2019-10-07 08:58:13,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f44380d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 08:58:13, skipping insertion in model container [2019-10-07 08:58:13,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 08:57:50" (2/3) ... [2019-10-07 08:58:13,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f44380d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 08:58:13, skipping insertion in model container [2019-10-07 08:58:13,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 08:58:13" (3/3) ... [2019-10-07 08:58:13,609 INFO L109 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--can--can-dev.ko-entry_point.cil.out.i [2019-10-07 08:58:13,619 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 08:58:13,634 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 08:58:13,645 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 08:58:13,688 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 08:58:13,689 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 08:58:13,689 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 08:58:13,689 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 08:58:13,689 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 08:58:13,689 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 08:58:13,689 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 08:58:13,689 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 08:58:13,728 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states. [2019-10-07 08:58:13,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-07 08:58:13,746 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 08:58:13,747 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 08:58:13,749 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 08:58:13,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 08:58:13,755 INFO L82 PathProgramCache]: Analyzing trace with hash -307523480, now seen corresponding path program 1 times [2019-10-07 08:58:13,764 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 08:58:13,765 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 08:58:13,765 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 08:58:13,765 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 08:58:13,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 08:58:14,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 08:58:14,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 08:58:14,438 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 08:58:14,438 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 08:58:14,439 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 08:58:14,445 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 08:58:14,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 08:58:14,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 08:58:14,463 INFO L87 Difference]: Start difference. First operand 962 states. Second operand 3 states. [2019-10-07 08:58:15,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 08:58:15,084 INFO L93 Difference]: Finished difference Result 2105 states and 2890 transitions. [2019-10-07 08:58:15,085 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 08:58:15,086 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2019-10-07 08:58:15,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 08:58:15,131 INFO L225 Difference]: With dead ends: 2105 [2019-10-07 08:58:15,131 INFO L226 Difference]: Without dead ends: 1367 [2019-10-07 08:58:15,142 INFO L606 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 [2019-10-07 08:58:15,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2019-10-07 08:58:15,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1367. [2019-10-07 08:58:15,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1367 states. [2019-10-07 08:58:15,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 1830 transitions. [2019-10-07 08:58:15,351 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 1830 transitions. Word has length 51 [2019-10-07 08:58:15,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 08:58:15,352 INFO L462 AbstractCegarLoop]: Abstraction has 1367 states and 1830 transitions. [2019-10-07 08:58:15,352 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 08:58:15,353 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 1830 transitions. [2019-10-07 08:58:15,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-07 08:58:15,367 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 08:58:15,368 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 08:58:15,368 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 08:58:15,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 08:58:15,368 INFO L82 PathProgramCache]: Analyzing trace with hash -451845281, now seen corresponding path program 1 times [2019-10-07 08:58:15,369 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 08:58:15,369 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 08:58:15,369 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 08:58:15,369 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 08:58:15,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 08:58:15,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 08:58:15,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 08:58:15,806 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 08:58:15,807 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 08:58:15,807 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-07 08:58:15,809 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 08:58:15,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 08:58:15,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-07 08:58:15,810 INFO L87 Difference]: Start difference. First operand 1367 states and 1830 transitions. Second operand 6 states. [2019-10-07 08:58:17,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 08:58:17,359 INFO L93 Difference]: Finished difference Result 2724 states and 3695 transitions. [2019-10-07 08:58:17,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 08:58:17,359 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2019-10-07 08:58:17,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 08:58:17,387 INFO L225 Difference]: With dead ends: 2724 [2019-10-07 08:58:17,387 INFO L226 Difference]: Without dead ends: 2701 [2019-10-07 08:58:17,390 INFO L606 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 [2019-10-07 08:58:17,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2701 states. [2019-10-07 08:58:17,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2701 to 2701. [2019-10-07 08:58:17,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2701 states. [2019-10-07 08:58:17,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2701 states to 2701 states and 3670 transitions. [2019-10-07 08:58:17,556 INFO L78 Accepts]: Start accepts. Automaton has 2701 states and 3670 transitions. Word has length 57 [2019-10-07 08:58:17,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 08:58:17,556 INFO L462 AbstractCegarLoop]: Abstraction has 2701 states and 3670 transitions. [2019-10-07 08:58:17,557 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 08:58:17,557 INFO L276 IsEmpty]: Start isEmpty. Operand 2701 states and 3670 transitions. [2019-10-07 08:58:17,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2019-10-07 08:58:17,571 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 08:58:17,572 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 08:58:17,573 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 08:58:17,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 08:58:17,573 INFO L82 PathProgramCache]: Analyzing trace with hash 875537593, now seen corresponding path program 1 times [2019-10-07 08:58:17,573 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 08:58:17,574 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 08:58:17,574 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 08:58:17,574 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 08:58:17,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 08:58:17,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 08:58:17,975 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 08:58:17,975 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 08:58:17,975 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 08:58:17,976 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 08:58:17,978 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 08:58:17,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 08:58:17,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 08:58:17,979 INFO L87 Difference]: Start difference. First operand 2701 states and 3670 transitions. Second operand 5 states. [2019-10-07 08:58:18,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 08:58:18,134 INFO L93 Difference]: Finished difference Result 5408 states and 7446 transitions. [2019-10-07 08:58:18,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 08:58:18,134 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 169 [2019-10-07 08:58:18,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 08:58:18,156 INFO L225 Difference]: With dead ends: 5408 [2019-10-07 08:58:18,156 INFO L226 Difference]: Without dead ends: 2725 [2019-10-07 08:58:18,169 INFO L606 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 [2019-10-07 08:58:18,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2725 states. [2019-10-07 08:58:18,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2725 to 2721. [2019-10-07 08:58:18,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2721 states. [2019-10-07 08:58:18,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2721 states to 2721 states and 3709 transitions. [2019-10-07 08:58:18,416 INFO L78 Accepts]: Start accepts. Automaton has 2721 states and 3709 transitions. Word has length 169 [2019-10-07 08:58:18,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 08:58:18,417 INFO L462 AbstractCegarLoop]: Abstraction has 2721 states and 3709 transitions. [2019-10-07 08:58:18,417 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 08:58:18,417 INFO L276 IsEmpty]: Start isEmpty. Operand 2721 states and 3709 transitions. [2019-10-07 08:58:18,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2019-10-07 08:58:18,429 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 08:58:18,429 INFO L385 BasicCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 08:58:18,430 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 08:58:18,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 08:58:18,430 INFO L82 PathProgramCache]: Analyzing trace with hash -77491320, now seen corresponding path program 1 times [2019-10-07 08:58:18,430 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 08:58:18,431 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 08:58:18,431 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 08:58:18,431 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 08:58:18,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 08:58:18,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 08:58:18,681 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-07 08:58:18,681 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 08:58:18,681 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 08:58:18,681 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 08:58:18,682 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 08:58:18,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 08:58:18,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-10-07 08:58:18,683 INFO L87 Difference]: Start difference. First operand 2721 states and 3709 transitions. Second operand 7 states. [2019-10-07 08:58:40,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 08:58:40,129 INFO L93 Difference]: Finished difference Result 11080 states and 15251 transitions. [2019-10-07 08:58:40,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-07 08:58:40,130 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 172 [2019-10-07 08:58:40,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 08:58:40,196 INFO L225 Difference]: With dead ends: 11080 [2019-10-07 08:58:40,203 INFO L226 Difference]: Without dead ends: 8377 [2019-10-07 08:58:40,221 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-10-07 08:58:40,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8377 states. [2019-10-07 08:58:40,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8377 to 8301. [2019-10-07 08:58:40,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8301 states. [2019-10-07 08:58:40,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8301 states to 8301 states and 11448 transitions. [2019-10-07 08:58:40,652 INFO L78 Accepts]: Start accepts. Automaton has 8301 states and 11448 transitions. Word has length 172 [2019-10-07 08:58:40,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 08:58:40,653 INFO L462 AbstractCegarLoop]: Abstraction has 8301 states and 11448 transitions. [2019-10-07 08:58:40,653 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 08:58:40,653 INFO L276 IsEmpty]: Start isEmpty. Operand 8301 states and 11448 transitions. [2019-10-07 08:58:40,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-07 08:58:40,682 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 08:58:40,682 INFO L385 BasicCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 08:58:40,682 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 08:58:40,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 08:58:40,683 INFO L82 PathProgramCache]: Analyzing trace with hash 1177870860, now seen corresponding path program 1 times [2019-10-07 08:58:40,684 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 08:58:40,684 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 08:58:40,684 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 08:58:40,684 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 08:58:40,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 08:58:40,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 08:58:41,020 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-07 08:58:41,022 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 08:58:41,022 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 08:58:41,022 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 08:58:41,023 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 08:58:41,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 08:58:41,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-10-07 08:58:41,024 INFO L87 Difference]: Start difference. First operand 8301 states and 11448 transitions. Second operand 7 states. [2019-10-07 08:59:01,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 08:59:01,427 INFO L93 Difference]: Finished difference Result 33526 states and 46713 transitions. [2019-10-07 08:59:01,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-07 08:59:01,428 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 174 [2019-10-07 08:59:01,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 08:59:01,607 INFO L225 Difference]: With dead ends: 33526 [2019-10-07 08:59:01,608 INFO L226 Difference]: Without dead ends: 25251 [2019-10-07 08:59:01,653 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-10-07 08:59:01,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25251 states. [2019-10-07 08:59:03,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25251 to 25181. [2019-10-07 08:59:03,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25181 states. [2019-10-07 08:59:04,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25181 states to 25181 states and 35140 transitions. [2019-10-07 08:59:04,040 INFO L78 Accepts]: Start accepts. Automaton has 25181 states and 35140 transitions. Word has length 174 [2019-10-07 08:59:04,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 08:59:04,040 INFO L462 AbstractCegarLoop]: Abstraction has 25181 states and 35140 transitions. [2019-10-07 08:59:04,040 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 08:59:04,041 INFO L276 IsEmpty]: Start isEmpty. Operand 25181 states and 35140 transitions. [2019-10-07 08:59:04,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2019-10-07 08:59:04,089 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 08:59:04,090 INFO L385 BasicCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 08:59:04,090 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 08:59:04,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 08:59:04,091 INFO L82 PathProgramCache]: Analyzing trace with hash -1688692695, now seen corresponding path program 1 times [2019-10-07 08:59:04,091 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 08:59:04,091 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 08:59:04,091 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 08:59:04,091 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 08:59:04,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 08:59:04,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 08:59:05,367 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-07 08:59:05,368 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 08:59:05,368 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 08:59:05,368 INFO L95 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 [2019-10-07 08:59:06,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 08:59:06,686 INFO L256 TraceCheckSpWp]: Trace formula consists of 3319 conjuncts, 58 conjunts are in the unsatisfiable core [2019-10-07 08:59:06,704 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 08:59:07,107 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 08:59:07,144 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-07 08:59:07,145 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 08:59:08,851 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 08:59:08,868 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 08:59:09,527 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-07 08:59:09,528 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 08:59:09,528 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [13, 13] total 23 [2019-10-07 08:59:09,529 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-07 08:59:09,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-07 08:59:09,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=454, Unknown=0, NotChecked=0, Total=506 [2019-10-07 08:59:09,530 INFO L87 Difference]: Start difference. First operand 25181 states and 35140 transitions. Second operand 14 states. [2019-10-07 08:59:10,096 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2019-10-07 08:59:10,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 08:59:10,798 INFO L93 Difference]: Finished difference Result 50986 states and 71749 transitions. [2019-10-07 08:59:10,798 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-07 08:59:10,798 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 173 [2019-10-07 08:59:10,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 08:59:10,965 INFO L225 Difference]: With dead ends: 50986 [2019-10-07 08:59:10,965 INFO L226 Difference]: Without dead ends: 25831 [2019-10-07 08:59:11,140 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 334 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=73, Invalid=629, Unknown=0, NotChecked=0, Total=702 [2019-10-07 08:59:11,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25831 states. [2019-10-07 08:59:12,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25831 to 25595. [2019-10-07 08:59:12,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25595 states. [2019-10-07 08:59:12,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25595 states to 25595 states and 35626 transitions. [2019-10-07 08:59:12,792 INFO L78 Accepts]: Start accepts. Automaton has 25595 states and 35626 transitions. Word has length 173 [2019-10-07 08:59:12,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 08:59:12,793 INFO L462 AbstractCegarLoop]: Abstraction has 25595 states and 35626 transitions. [2019-10-07 08:59:12,793 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-07 08:59:12,793 INFO L276 IsEmpty]: Start isEmpty. Operand 25595 states and 35626 transitions. [2019-10-07 08:59:12,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2019-10-07 08:59:12,842 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 08:59:12,842 INFO L385 BasicCegarLoop]: trace histogram [5, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 08:59:13,055 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 08:59:13,055 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 08:59:13,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 08:59:13,056 INFO L82 PathProgramCache]: Analyzing trace with hash -394778376, now seen corresponding path program 1 times [2019-10-07 08:59:13,056 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 08:59:13,056 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 08:59:13,056 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 08:59:13,056 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 08:59:13,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 08:59:13,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 08:59:13,323 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-07 08:59:13,324 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 08:59:13,326 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 08:59:13,326 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 08:59:13,327 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 08:59:13,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 08:59:13,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 08:59:13,328 INFO L87 Difference]: Start difference. First operand 25595 states and 35626 transitions. Second operand 3 states. [2019-10-07 08:59:13,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 08:59:13,880 INFO L93 Difference]: Finished difference Result 38598 states and 54242 transitions. [2019-10-07 08:59:13,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 08:59:13,880 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 185 [2019-10-07 08:59:13,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 08:59:15,218 INFO L225 Difference]: With dead ends: 38598 [2019-10-07 08:59:15,219 INFO L226 Difference]: Without dead ends: 25667 [2019-10-07 08:59:15,252 INFO L606 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 [2019-10-07 08:59:15,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25667 states. [2019-10-07 08:59:16,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25667 to 25631. [2019-10-07 08:59:16,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25631 states. [2019-10-07 08:59:16,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25631 states to 25631 states and 35662 transitions. [2019-10-07 08:59:16,384 INFO L78 Accepts]: Start accepts. Automaton has 25631 states and 35662 transitions. Word has length 185 [2019-10-07 08:59:16,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 08:59:16,395 INFO L462 AbstractCegarLoop]: Abstraction has 25631 states and 35662 transitions. [2019-10-07 08:59:16,395 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 08:59:16,395 INFO L276 IsEmpty]: Start isEmpty. Operand 25631 states and 35662 transitions. [2019-10-07 08:59:16,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2019-10-07 08:59:16,455 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 08:59:16,455 INFO L385 BasicCegarLoop]: trace histogram [5, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 08:59:16,456 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 08:59:16,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 08:59:16,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1501255404, now seen corresponding path program 1 times [2019-10-07 08:59:16,457 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 08:59:16,457 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 08:59:16,457 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 08:59:16,457 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 08:59:16,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 08:59:16,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 08:59:17,234 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-07 08:59:17,235 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 08:59:17,235 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 08:59:17,235 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-07 08:59:17,236 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 08:59:17,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 08:59:17,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2019-10-07 08:59:17,237 INFO L87 Difference]: Start difference. First operand 25631 states and 35662 transitions. Second operand 9 states. [2019-10-07 08:59:40,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 08:59:40,865 INFO L93 Difference]: Finished difference Result 56528 states and 78851 transitions. [2019-10-07 08:59:40,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 08:59:40,865 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 186 [2019-10-07 08:59:40,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 08:59:40,990 INFO L225 Difference]: With dead ends: 56528 [2019-10-07 08:59:40,991 INFO L226 Difference]: Without dead ends: 30923 [2019-10-07 08:59:41,055 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2019-10-07 08:59:41,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30923 states. [2019-10-07 08:59:42,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30923 to 30109. [2019-10-07 08:59:42,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30109 states. [2019-10-07 08:59:42,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30109 states to 30109 states and 41364 transitions. [2019-10-07 08:59:42,459 INFO L78 Accepts]: Start accepts. Automaton has 30109 states and 41364 transitions. Word has length 186 [2019-10-07 08:59:42,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 08:59:42,460 INFO L462 AbstractCegarLoop]: Abstraction has 30109 states and 41364 transitions. [2019-10-07 08:59:42,460 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 08:59:42,460 INFO L276 IsEmpty]: Start isEmpty. Operand 30109 states and 41364 transitions. [2019-10-07 08:59:42,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-10-07 08:59:42,506 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 08:59:42,506 INFO L385 BasicCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 08:59:42,507 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 08:59:42,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 08:59:42,507 INFO L82 PathProgramCache]: Analyzing trace with hash 894500523, now seen corresponding path program 1 times [2019-10-07 08:59:42,508 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 08:59:42,508 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 08:59:42,508 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 08:59:42,508 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 08:59:42,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 08:59:42,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 08:59:42,866 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-07 08:59:42,867 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 08:59:42,867 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 08:59:42,867 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 08:59:42,869 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 08:59:42,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 08:59:42,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 08:59:42,870 INFO L87 Difference]: Start difference. First operand 30109 states and 41364 transitions. Second operand 4 states. [2019-10-07 08:59:43,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 08:59:43,737 INFO L93 Difference]: Finished difference Result 60300 states and 83813 transitions. [2019-10-07 08:59:43,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-07 08:59:43,738 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 197 [2019-10-07 08:59:43,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 08:59:43,892 INFO L225 Difference]: With dead ends: 60300 [2019-10-07 08:59:43,892 INFO L226 Difference]: Without dead ends: 30163 [2019-10-07 08:59:44,000 INFO L606 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 [2019-10-07 08:59:44,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30163 states. [2019-10-07 08:59:45,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30163 to 30163. [2019-10-07 08:59:45,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30163 states. [2019-10-07 08:59:45,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30163 states to 30163 states and 41418 transitions. [2019-10-07 08:59:45,272 INFO L78 Accepts]: Start accepts. Automaton has 30163 states and 41418 transitions. Word has length 197 [2019-10-07 08:59:45,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 08:59:45,272 INFO L462 AbstractCegarLoop]: Abstraction has 30163 states and 41418 transitions. [2019-10-07 08:59:45,272 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 08:59:45,273 INFO L276 IsEmpty]: Start isEmpty. Operand 30163 states and 41418 transitions. [2019-10-07 08:59:45,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-07 08:59:45,309 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 08:59:45,309 INFO L385 BasicCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 08:59:45,309 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 08:59:45,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 08:59:45,310 INFO L82 PathProgramCache]: Analyzing trace with hash -333152633, now seen corresponding path program 1 times [2019-10-07 08:59:45,310 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 08:59:45,311 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 08:59:45,311 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 08:59:45,311 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 08:59:45,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 08:59:45,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 08:59:45,520 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-10-07 08:59:45,520 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 08:59:45,521 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 08:59:45,521 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 08:59:45,522 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 08:59:45,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 08:59:45,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-10-07 08:59:45,523 INFO L87 Difference]: Start difference. First operand 30163 states and 41418 transitions. Second operand 7 states. [2019-10-07 09:00:03,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 09:00:03,980 INFO L93 Difference]: Finished difference Result 121162 states and 166989 transitions. [2019-10-07 09:00:03,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-07 09:00:03,981 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 198 [2019-10-07 09:00:03,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 09:00:04,339 INFO L225 Difference]: With dead ends: 121162 [2019-10-07 09:00:04,339 INFO L226 Difference]: Without dead ends: 91025 [2019-10-07 09:00:04,409 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-10-07 09:00:04,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91025 states. [2019-10-07 09:00:06,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91025 to 90935. [2019-10-07 09:00:06,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90935 states. [2019-10-07 09:00:07,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90935 states to 90935 states and 125242 transitions. [2019-10-07 09:00:07,150 INFO L78 Accepts]: Start accepts. Automaton has 90935 states and 125242 transitions. Word has length 198 [2019-10-07 09:00:07,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 09:00:07,151 INFO L462 AbstractCegarLoop]: Abstraction has 90935 states and 125242 transitions. [2019-10-07 09:00:07,151 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 09:00:07,151 INFO L276 IsEmpty]: Start isEmpty. Operand 90935 states and 125242 transitions. [2019-10-07 09:00:07,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-07 09:00:07,216 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 09:00:07,216 INFO L385 BasicCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 09:00:07,217 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 09:00:07,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 09:00:07,217 INFO L82 PathProgramCache]: Analyzing trace with hash 250151291, now seen corresponding path program 1 times [2019-10-07 09:00:07,217 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 09:00:07,217 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:00:07,217 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:00:07,218 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:00:07,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 09:00:07,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:00:07,947 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-10-07 09:00:07,947 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:00:07,947 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 09:00:07,948 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 09:00:07,948 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 09:00:07,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 09:00:07,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-10-07 09:00:07,949 INFO L87 Difference]: Start difference. First operand 90935 states and 125242 transitions. Second operand 7 states. [2019-10-07 09:00:36,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 09:00:36,469 INFO L93 Difference]: Finished difference Result 364978 states and 505331 transitions. [2019-10-07 09:00:36,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-07 09:00:36,469 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 200 [2019-10-07 09:00:36,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 09:00:37,566 INFO L225 Difference]: With dead ends: 364978 [2019-10-07 09:00:37,566 INFO L226 Difference]: Without dead ends: 274069 [2019-10-07 09:00:37,781 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-10-07 09:00:38,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274069 states. [2019-10-07 09:00:53,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274069 to 273183. [2019-10-07 09:00:53,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273183 states. [2019-10-07 09:00:53,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273183 states to 273183 states and 378002 transitions. [2019-10-07 09:00:53,938 INFO L78 Accepts]: Start accepts. Automaton has 273183 states and 378002 transitions. Word has length 200 [2019-10-07 09:00:53,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 09:00:53,938 INFO L462 AbstractCegarLoop]: Abstraction has 273183 states and 378002 transitions. [2019-10-07 09:00:53,939 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 09:00:53,939 INFO L276 IsEmpty]: Start isEmpty. Operand 273183 states and 378002 transitions. [2019-10-07 09:00:54,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-07 09:00:54,018 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 09:00:54,019 INFO L385 BasicCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 09:00:54,019 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 09:00:54,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 09:00:54,019 INFO L82 PathProgramCache]: Analyzing trace with hash -14694472, now seen corresponding path program 1 times [2019-10-07 09:00:54,020 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 09:00:54,020 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:00:54,020 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:00:54,020 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:00:54,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 09:00:54,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:00:59,455 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-07 09:00:59,456 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:00:59,456 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 09:00:59,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 09:01:00,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:01:00,301 INFO L256 TraceCheckSpWp]: Trace formula consists of 3466 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-07 09:01:00,310 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 09:01:00,377 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-07 09:01:00,377 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 09:01:00,992 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-07 09:01:00,992 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 09:01:01,040 INFO L162 IcfgInterpreter]: Started Sifa with 180 locations of interest [2019-10-07 09:01:01,040 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 09:01:01,050 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 09:01:01,060 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 09:01:01,060 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs