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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--realtek--atp.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 12:15:14,102 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 12:15:14,107 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 12:15:14,120 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 12:15:14,121 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 12:15:14,122 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 12:15:14,123 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 12:15:14,125 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 12:15:14,127 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 12:15:14,128 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 12:15:14,129 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 12:15:14,130 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 12:15:14,131 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 12:15:14,132 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 12:15:14,136 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 12:15:14,139 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 12:15:14,140 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 12:15:14,141 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 12:15:14,145 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 12:15:14,150 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 12:15:14,151 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 12:15:14,156 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 12:15:14,159 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 12:15:14,160 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 12:15:14,163 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 12:15:14,163 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 12:15:14,163 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 12:15:14,167 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 12:15:14,168 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 12:15:14,171 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 12:15:14,171 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 12:15:14,172 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 12:15:14,173 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 12:15:14,173 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 12:15:14,178 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 12:15:14,179 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 12:15:14,179 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 12:15:14,180 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 12:15:14,180 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 12:15:14,181 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 12:15:14,184 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 12:15:14,185 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 12:15:14,208 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 12:15:14,208 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 12:15:14,209 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 12:15:14,210 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 12:15:14,210 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 12:15:14,210 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 12:15:14,210 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 12:15:14,211 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 12:15:14,211 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 12:15:14,211 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 12:15:14,211 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 12:15:14,211 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 12:15:14,211 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 12:15:14,212 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 12:15:14,212 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 12:15:14,212 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 12:15:14,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 12:15:14,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 12:15:14,213 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 12:15:14,213 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 12:15:14,213 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 12:15:14,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 12:15:14,214 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 12:15:14,214 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 12:15:14,214 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 12:15:14,214 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 12:15:14,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 12:15:14,215 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 12:15:14,215 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 12:15:14,485 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 12:15:14,504 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 12:15:14,512 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 12:15:14,513 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 12:15:14,514 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 12:15:14,515 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--realtek--atp.ko-entry_point.cil.out.i [2019-10-07 12:15:14,593 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f72a1f323/bb1aa6dd86f84554b365efa3d44f2b47/FLAG9b45b9a97 [2019-10-07 12:15:15,473 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 12:15:15,474 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--realtek--atp.ko-entry_point.cil.out.i [2019-10-07 12:15:15,509 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f72a1f323/bb1aa6dd86f84554b365efa3d44f2b47/FLAG9b45b9a97 [2019-10-07 12:15:15,959 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f72a1f323/bb1aa6dd86f84554b365efa3d44f2b47 [2019-10-07 12:15:15,969 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 12:15:15,971 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 12:15:15,972 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 12:15:15,972 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 12:15:15,976 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 12:15:15,977 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 12:15:15" (1/1) ... [2019-10-07 12:15:15,980 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59d9d827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:15:15, skipping insertion in model container [2019-10-07 12:15:15,980 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 12:15:15" (1/1) ... [2019-10-07 12:15:15,988 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 12:15:16,117 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 12:15:17,801 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 12:15:17,862 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 12:15:18,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 12:15:18,565 INFO L192 MainTranslator]: Completed translation [2019-10-07 12:15:18,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:15:18 WrapperNode [2019-10-07 12:15:18,566 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 12:15:18,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 12:15:18,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 12:15:18,568 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 12:15:18,590 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:15:18" (1/1) ... [2019-10-07 12:15:18,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:15:18" (1/1) ... [2019-10-07 12:15:18,692 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:15:18" (1/1) ... [2019-10-07 12:15:18,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:15:18" (1/1) ... [2019-10-07 12:15:18,828 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:15:18" (1/1) ... [2019-10-07 12:15:18,856 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:15:18" (1/1) ... [2019-10-07 12:15:18,887 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:15:18" (1/1) ... [2019-10-07 12:15:18,904 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 12:15:18,905 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 12:15:18,905 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 12:15:18,905 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 12:15:18,907 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:15:18" (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 12:15:18,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 12:15:18,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 12:15:18,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2019-10-07 12:15:18,982 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-10-07 12:15:18,982 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2019-10-07 12:15:18,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2019-10-07 12:15:18,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-07 12:15:18,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-07 12:15:18,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-07 12:15:18,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-07 12:15:18,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-07 12:15:18,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-07 12:15:18,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-07 12:15:18,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-07 12:15:18,984 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-07 12:15:18,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_5 [2019-10-07 12:15:18,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_9 [2019-10-07 12:15:18,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_12 [2019-10-07 12:15:18,985 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2019-10-07 12:15:18,986 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2019-10-07 12:15:18,986 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2019-10-07 12:15:18,986 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2019-10-07 12:15:18,986 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2019-10-07 12:15:18,986 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2019-10-07 12:15:18,987 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2019-10-07 12:15:18,987 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2019-10-07 12:15:18,987 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2019-10-07 12:15:18,987 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2019-10-07 12:15:18,987 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2019-10-07 12:15:18,987 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2019-10-07 12:15:18,988 INFO L138 BoogieDeclarations]: Found implementation of procedure inbyte [2019-10-07 12:15:18,988 INFO L138 BoogieDeclarations]: Found implementation of procedure read_nibble [2019-10-07 12:15:18,988 INFO L138 BoogieDeclarations]: Found implementation of procedure read_byte_mode0 [2019-10-07 12:15:18,988 INFO L138 BoogieDeclarations]: Found implementation of procedure read_byte_mode2 [2019-10-07 12:15:18,988 INFO L138 BoogieDeclarations]: Found implementation of procedure read_byte_mode4 [2019-10-07 12:15:18,988 INFO L138 BoogieDeclarations]: Found implementation of procedure read_byte_mode6 [2019-10-07 12:15:18,989 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2019-10-07 12:15:18,989 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg_high [2019-10-07 12:15:18,989 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg_byte [2019-10-07 12:15:18,989 INFO L138 BoogieDeclarations]: Found implementation of procedure write_byte_mode0 [2019-10-07 12:15:18,989 INFO L138 BoogieDeclarations]: Found implementation of procedure write_byte_mode1 [2019-10-07 12:15:18,989 INFO L138 BoogieDeclarations]: Found implementation of procedure atp_init [2019-10-07 12:15:18,990 INFO L138 BoogieDeclarations]: Found implementation of procedure atp_probe1 [2019-10-07 12:15:18,990 INFO L138 BoogieDeclarations]: Found implementation of procedure get_node_ID [2019-10-07 12:15:18,990 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_op [2019-10-07 12:15:18,990 INFO L138 BoogieDeclarations]: Found implementation of procedure net_open [2019-10-07 12:15:18,990 INFO L138 BoogieDeclarations]: Found implementation of procedure hardware_init [2019-10-07 12:15:18,990 INFO L138 BoogieDeclarations]: Found implementation of procedure trigger_send [2019-10-07 12:15:18,991 INFO L138 BoogieDeclarations]: Found implementation of procedure write_packet [2019-10-07 12:15:18,991 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_timeout [2019-10-07 12:15:18,991 INFO L138 BoogieDeclarations]: Found implementation of procedure atp_send_packet [2019-10-07 12:15:18,991 INFO L138 BoogieDeclarations]: Found implementation of procedure atp_interrupt [2019-10-07 12:15:18,991 INFO L138 BoogieDeclarations]: Found implementation of procedure atp_timed_checker [2019-10-07 12:15:18,991 INFO L138 BoogieDeclarations]: Found implementation of procedure net_rx [2019-10-07 12:15:18,991 INFO L138 BoogieDeclarations]: Found implementation of procedure read_block [2019-10-07 12:15:18,992 INFO L138 BoogieDeclarations]: Found implementation of procedure net_close [2019-10-07 12:15:18,992 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2019-10-07 12:15:18,992 INFO L138 BoogieDeclarations]: Found implementation of procedure atp_init_module [2019-10-07 12:15:18,992 INFO L138 BoogieDeclarations]: Found implementation of procedure atp_cleanup_module [2019-10-07 12:15:18,992 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_2 [2019-10-07 12:15:18,993 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2019-10-07 12:15:18,993 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_2 [2019-10-07 12:15:18,993 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_2 [2019-10-07 12:15:18,993 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2019-10-07 12:15:18,993 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2019-10-07 12:15:18,993 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2019-10-07 12:15:18,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2019-10-07 12:15:18,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_3 [2019-10-07 12:15:18,994 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2019-10-07 12:15:18,994 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 12:15:18,994 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-10-07 12:15:18,994 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-10-07 12:15:18,995 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-07 12:15:18,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmem_cache_alloc_20 [2019-10-07 12:15:18,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pskb_expand_head_26 [2019-10-07 12:15:18,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_clone_28 [2019-10-07 12:15:18,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_copy_30 [2019-10-07 12:15:18,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___netdev_alloc_skb_31 [2019-10-07 12:15:18,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___netdev_alloc_skb_32 [2019-10-07 12:15:18,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___netdev_alloc_skb_33 [2019-10-07 12:15:18,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pskb_expand_head_34 [2019-10-07 12:15:18,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pskb_expand_head_35 [2019-10-07 12:15:18,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_clone_36 [2019-10-07 12:15:18,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_37 [2019-10-07 12:15:18,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev_38 [2019-10-07 12:15:18,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_39 [2019-10-07 12:15:18,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_40 [2019-10-07 12:15:18,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_41 [2019-10-07 12:15:18,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_42 [2019-10-07 12:15:18,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev_43 [2019-10-07 12:15:18,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-07 12:15:18,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-07 12:15:18,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-07 12:15:18,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-07 12:15:18,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-07 12:15:18,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2019-10-07 12:15:18,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2019-10-07 12:15:18,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2019-10-07 12:15:18,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2019-10-07 12:15:18,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2019-10-07 12:15:18,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2019-10-07 12:15:18,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-07 12:15:18,999 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-10-07 12:15:18,999 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-10-07 12:15:18,999 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-07 12:15:19,000 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2019-10-07 12:15:19,000 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_etherdev_mqs [2019-10-07 12:15:19,000 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2019-10-07 12:15:19,000 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2019-10-07 12:15:19,000 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2019-10-07 12:15:19,000 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2019-10-07 12:15:19,000 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2019-10-07 12:15:19,001 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2019-10-07 12:15:19,001 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2019-10-07 12:15:19,001 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2019-10-07 12:15:19,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-07 12:15:19,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-07 12:15:19,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_init_3 [2019-10-07 12:15:19,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_uninit_3 [2019-10-07 12:15:19,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2019-10-07 12:15:19,002 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2019-10-07 12:15:19,002 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2019-10-07 12:15:19,002 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-07 12:15:19,002 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2019-10-07 12:15:19,002 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2019-10-07 12:15:19,003 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-10-07 12:15:19,003 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2019-10-07 12:15:19,003 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-07 12:15:19,003 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-07 12:15:19,003 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-07 12:15:19,003 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-07 12:15:19,004 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 12:15:19,004 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-10-07 12:15:19,004 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2019-10-07 12:15:19,004 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2019-10-07 12:15:19,004 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-07 12:15:19,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2019-10-07 12:15:19,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2019-10-07 12:15:19,005 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 12:15:19,005 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-07 12:15:19,005 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-07 12:15:19,005 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 12:15:19,005 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-07 12:15:19,006 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-07 12:15:19,006 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-07 12:15:19,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-07 12:15:19,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 12:15:19,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-07 12:15:19,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-07 12:15:19,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-07 12:15:19,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-07 12:15:19,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-07 12:15:19,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-07 12:15:19,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-07 12:15:19,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-07 12:15:19,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-07 12:15:19,007 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-07 12:15:19,008 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-10-07 12:15:19,008 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-10-07 12:15:19,008 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-07 12:15:19,008 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-07 12:15:19,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_5 [2019-10-07 12:15:19,008 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-10-07 12:15:19,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_9 [2019-10-07 12:15:19,009 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-10-07 12:15:19,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_12 [2019-10-07 12:15:19,009 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-07 12:15:19,009 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2019-10-07 12:15:19,009 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2019-10-07 12:15:19,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_40 [2019-10-07 12:15:19,009 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2019-10-07 12:15:19,010 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2019-10-07 12:15:19,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmem_cache_alloc_20 [2019-10-07 12:15:19,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2019-10-07 12:15:19,010 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_2 [2019-10-07 12:15:19,010 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2019-10-07 12:15:19,010 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_2 [2019-10-07 12:15:19,010 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_2 [2019-10-07 12:15:19,011 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2019-10-07 12:15:19,011 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2019-10-07 12:15:19,011 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2019-10-07 12:15:19,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2019-10-07 12:15:19,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_3 [2019-10-07 12:15:19,011 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2019-10-07 12:15:19,011 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2019-10-07 12:15:19,012 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2019-10-07 12:15:19,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_39 [2019-10-07 12:15:19,012 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2019-10-07 12:15:19,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_41 [2019-10-07 12:15:19,013 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2019-10-07 12:15:19,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_clone_28 [2019-10-07 12:15:19,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_clone_36 [2019-10-07 12:15:19,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_copy_30 [2019-10-07 12:15:19,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pskb_expand_head_26 [2019-10-07 12:15:19,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pskb_expand_head_34 [2019-10-07 12:15:19,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pskb_expand_head_35 [2019-10-07 12:15:19,014 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-10-07 12:15:19,014 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2019-10-07 12:15:19,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 12:15:19,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 12:15:19,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 12:15:19,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 12:15:19,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___netdev_alloc_skb_31 [2019-10-07 12:15:19,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___netdev_alloc_skb_32 [2019-10-07 12:15:19,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___netdev_alloc_skb_33 [2019-10-07 12:15:19,016 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2019-10-07 12:15:19,016 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2019-10-07 12:15:19,017 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2019-10-07 12:15:19,017 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2019-10-07 12:15:19,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev_38 [2019-10-07 12:15:19,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev_43 [2019-10-07 12:15:19,020 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2019-10-07 12:15:19,020 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2019-10-07 12:15:19,020 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2019-10-07 12:15:19,020 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2019-10-07 12:15:19,020 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2019-10-07 12:15:19,021 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2019-10-07 12:15:19,021 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2019-10-07 12:15:19,021 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2019-10-07 12:15:19,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_37 [2019-10-07 12:15:19,021 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2019-10-07 12:15:19,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_42 [2019-10-07 12:15:19,021 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2019-10-07 12:15:19,022 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2019-10-07 12:15:19,022 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2019-10-07 12:15:19,022 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2019-10-07 12:15:19,022 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_etherdev_mqs [2019-10-07 12:15:19,022 INFO L130 BoogieDeclarations]: Found specification of procedure inbyte [2019-10-07 12:15:19,022 INFO L130 BoogieDeclarations]: Found specification of procedure read_nibble [2019-10-07 12:15:19,022 INFO L130 BoogieDeclarations]: Found specification of procedure read_byte_mode0 [2019-10-07 12:15:19,023 INFO L130 BoogieDeclarations]: Found specification of procedure read_byte_mode2 [2019-10-07 12:15:19,023 INFO L130 BoogieDeclarations]: Found specification of procedure read_byte_mode4 [2019-10-07 12:15:19,023 INFO L130 BoogieDeclarations]: Found specification of procedure read_byte_mode6 [2019-10-07 12:15:19,023 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2019-10-07 12:15:19,023 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg_high [2019-10-07 12:15:19,023 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg_byte [2019-10-07 12:15:19,023 INFO L130 BoogieDeclarations]: Found specification of procedure write_byte_mode0 [2019-10-07 12:15:19,024 INFO L130 BoogieDeclarations]: Found specification of procedure write_byte_mode1 [2019-10-07 12:15:19,024 INFO L130 BoogieDeclarations]: Found specification of procedure atp_timed_checker [2019-10-07 12:15:19,024 INFO L130 BoogieDeclarations]: Found specification of procedure atp_probe1 [2019-10-07 12:15:19,024 INFO L130 BoogieDeclarations]: Found specification of procedure get_node_ID [2019-10-07 12:15:19,024 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_op [2019-10-07 12:15:19,024 INFO L130 BoogieDeclarations]: Found specification of procedure net_open [2019-10-07 12:15:19,024 INFO L130 BoogieDeclarations]: Found specification of procedure hardware_init [2019-10-07 12:15:19,024 INFO L130 BoogieDeclarations]: Found specification of procedure write_packet [2019-10-07 12:15:19,025 INFO L130 BoogieDeclarations]: Found specification of procedure trigger_send [2019-10-07 12:15:19,025 INFO L130 BoogieDeclarations]: Found specification of procedure atp_send_packet [2019-10-07 12:15:19,025 INFO L130 BoogieDeclarations]: Found specification of procedure atp_interrupt [2019-10-07 12:15:19,025 INFO L130 BoogieDeclarations]: Found specification of procedure net_rx [2019-10-07 12:15:19,025 INFO L130 BoogieDeclarations]: Found specification of procedure read_block [2019-10-07 12:15:19,025 INFO L130 BoogieDeclarations]: Found specification of procedure net_close [2019-10-07 12:15:19,025 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2019-10-07 12:15:19,026 INFO L130 BoogieDeclarations]: Found specification of procedure tx_timeout [2019-10-07 12:15:19,026 INFO L130 BoogieDeclarations]: Found specification of procedure atp_init [2019-10-07 12:15:19,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 12:15:19,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 12:15:19,026 INFO L130 BoogieDeclarations]: Found specification of procedure atp_init_module [2019-10-07 12:15:19,026 INFO L130 BoogieDeclarations]: Found specification of procedure atp_cleanup_module [2019-10-07 12:15:19,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_uninit_3 [2019-10-07 12:15:19,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-07 12:15:19,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-07 12:15:19,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_init_3 [2019-10-07 12:15:19,030 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2019-10-07 12:15:19,031 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 12:15:19,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-07 12:15:19,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-07 12:15:19,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-07 12:15:19,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-07 12:15:19,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-07 12:15:19,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2019-10-07 12:15:19,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2019-10-07 12:15:19,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2019-10-07 12:15:19,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2019-10-07 12:15:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-07 12:15:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2019-10-07 12:15:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 12:15:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-07 12:15:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 12:15:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 12:15:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-07 12:15:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 12:15:20,242 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-07 12:15:23,047 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 12:15:23,047 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-07 12:15:23,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 12:15:23 BoogieIcfgContainer [2019-10-07 12:15:23,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 12:15:23,051 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 12:15:23,051 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 12:15:23,055 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 12:15:23,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 12:15:15" (1/3) ... [2019-10-07 12:15:23,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61db88be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 12:15:23, skipping insertion in model container [2019-10-07 12:15:23,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:15:18" (2/3) ... [2019-10-07 12:15:23,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61db88be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 12:15:23, skipping insertion in model container [2019-10-07 12:15:23,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 12:15:23" (3/3) ... [2019-10-07 12:15:23,059 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--realtek--atp.ko-entry_point.cil.out.i [2019-10-07 12:15:23,069 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 12:15:23,080 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 12:15:23,093 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 12:15:23,128 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 12:15:23,129 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 12:15:23,129 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 12:15:23,129 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 12:15:23,129 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 12:15:23,129 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 12:15:23,129 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 12:15:23,130 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 12:15:23,170 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states. [2019-10-07 12:15:23,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2019-10-07 12:15:23,289 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:15:23,291 INFO L385 BasicCegarLoop]: trace histogram [40, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 12:15:23,294 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:15:23,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:15:23,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1779509212, now seen corresponding path program 1 times [2019-10-07 12:15:23,309 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:15:23,309 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:15:23,309 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:15:23,309 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:15:23,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:15:23,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:15:24,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1647 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1647 trivial. 0 not checked. [2019-10-07 12:15:24,236 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:15:24,237 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 12:15:24,237 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 12:15:24,244 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 12:15:24,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 12:15:24,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 12:15:24,261 INFO L87 Difference]: Start difference. First operand 879 states. Second operand 5 states. [2019-10-07 12:15:24,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 12:15:24,591 INFO L93 Difference]: Finished difference Result 2480 states and 3374 transitions. [2019-10-07 12:15:24,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 12:15:24,593 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 281 [2019-10-07 12:15:24,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 12:15:24,626 INFO L225 Difference]: With dead ends: 2480 [2019-10-07 12:15:24,626 INFO L226 Difference]: Without dead ends: 1597 [2019-10-07 12:15:24,638 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-07 12:15:24,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1597 states. [2019-10-07 12:15:24,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1597 to 1582. [2019-10-07 12:15:24,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1582 states. [2019-10-07 12:15:24,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 2140 transitions. [2019-10-07 12:15:24,952 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 2140 transitions. Word has length 281 [2019-10-07 12:15:24,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 12:15:24,953 INFO L462 AbstractCegarLoop]: Abstraction has 1582 states and 2140 transitions. [2019-10-07 12:15:24,953 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 12:15:24,953 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 2140 transitions. [2019-10-07 12:15:24,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2019-10-07 12:15:24,970 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:15:24,971 INFO L385 BasicCegarLoop]: trace histogram [40, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 12:15:24,971 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:15:24,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:15:24,972 INFO L82 PathProgramCache]: Analyzing trace with hash -710408608, now seen corresponding path program 1 times [2019-10-07 12:15:24,972 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:15:24,972 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:15:24,973 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:15:24,973 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:15:24,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:15:25,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:15:25,411 INFO L134 CoverageAnalysis]: Checked inductivity of 1647 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1647 trivial. 0 not checked. [2019-10-07 12:15:25,411 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:15:25,412 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 12:15:25,412 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 12:15:25,415 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 12:15:25,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 12:15:25,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 12:15:25,416 INFO L87 Difference]: Start difference. First operand 1582 states and 2140 transitions. Second operand 5 states. [2019-10-07 12:15:25,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 12:15:25,628 INFO L93 Difference]: Finished difference Result 3484 states and 4724 transitions. [2019-10-07 12:15:25,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 12:15:25,628 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 282 [2019-10-07 12:15:25,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 12:15:25,665 INFO L225 Difference]: With dead ends: 3484 [2019-10-07 12:15:25,665 INFO L226 Difference]: Without dead ends: 2383 [2019-10-07 12:15:25,675 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-07 12:15:25,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2383 states. [2019-10-07 12:15:25,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2383 to 2363. [2019-10-07 12:15:25,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2363 states. [2019-10-07 12:15:25,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2363 states to 2363 states and 3198 transitions. [2019-10-07 12:15:25,870 INFO L78 Accepts]: Start accepts. Automaton has 2363 states and 3198 transitions. Word has length 282 [2019-10-07 12:15:25,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 12:15:25,871 INFO L462 AbstractCegarLoop]: Abstraction has 2363 states and 3198 transitions. [2019-10-07 12:15:25,871 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 12:15:25,871 INFO L276 IsEmpty]: Start isEmpty. Operand 2363 states and 3198 transitions. [2019-10-07 12:15:25,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2019-10-07 12:15:25,885 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:15:25,885 INFO L385 BasicCegarLoop]: trace histogram [33, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 12:15:25,886 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:15:25,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:15:25,886 INFO L82 PathProgramCache]: Analyzing trace with hash -870227043, now seen corresponding path program 1 times [2019-10-07 12:15:25,886 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:15:25,886 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:15:25,889 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:15:25,889 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:15:25,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:15:25,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:15:26,273 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1143 trivial. 0 not checked. [2019-10-07 12:15:26,274 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:15:26,274 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 12:15:26,274 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 12:15:26,275 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 12:15:26,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 12:15:26,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 12:15:26,277 INFO L87 Difference]: Start difference. First operand 2363 states and 3198 transitions. Second operand 5 states. [2019-10-07 12:15:26,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 12:15:26,540 INFO L93 Difference]: Finished difference Result 4270 states and 5784 transitions. [2019-10-07 12:15:26,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 12:15:26,540 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 256 [2019-10-07 12:15:26,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 12:15:26,563 INFO L225 Difference]: With dead ends: 4270 [2019-10-07 12:15:26,563 INFO L226 Difference]: Without dead ends: 2387 [2019-10-07 12:15:26,577 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-07 12:15:26,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2387 states. [2019-10-07 12:15:26,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2387 to 2367. [2019-10-07 12:15:26,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2367 states. [2019-10-07 12:15:26,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2367 states to 2367 states and 3200 transitions. [2019-10-07 12:15:26,749 INFO L78 Accepts]: Start accepts. Automaton has 2367 states and 3200 transitions. Word has length 256 [2019-10-07 12:15:26,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 12:15:26,750 INFO L462 AbstractCegarLoop]: Abstraction has 2367 states and 3200 transitions. [2019-10-07 12:15:26,750 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 12:15:26,750 INFO L276 IsEmpty]: Start isEmpty. Operand 2367 states and 3200 transitions. [2019-10-07 12:15:26,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2019-10-07 12:15:26,774 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:15:26,775 INFO L385 BasicCegarLoop]: trace histogram [33, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 12:15:26,775 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:15:26,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:15:26,775 INFO L82 PathProgramCache]: Analyzing trace with hash 815494201, now seen corresponding path program 1 times [2019-10-07 12:15:26,776 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:15:26,776 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:15:26,776 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:15:26,776 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:15:26,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:15:26,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:15:27,092 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1143 trivial. 0 not checked. [2019-10-07 12:15:27,092 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:15:27,093 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 12:15:27,093 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 12:15:27,094 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 12:15:27,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 12:15:27,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 12:15:27,095 INFO L87 Difference]: Start difference. First operand 2367 states and 3200 transitions. Second operand 5 states. [2019-10-07 12:15:27,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 12:15:27,304 INFO L93 Difference]: Finished difference Result 4079 states and 5503 transitions. [2019-10-07 12:15:27,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 12:15:27,304 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 257 [2019-10-07 12:15:27,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 12:15:27,322 INFO L225 Difference]: With dead ends: 4079 [2019-10-07 12:15:27,322 INFO L226 Difference]: Without dead ends: 2191 [2019-10-07 12:15:27,333 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-07 12:15:27,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2191 states. [2019-10-07 12:15:27,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2191 to 2174. [2019-10-07 12:15:27,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2174 states. [2019-10-07 12:15:27,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2174 states to 2174 states and 2919 transitions. [2019-10-07 12:15:27,476 INFO L78 Accepts]: Start accepts. Automaton has 2174 states and 2919 transitions. Word has length 257 [2019-10-07 12:15:27,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 12:15:27,477 INFO L462 AbstractCegarLoop]: Abstraction has 2174 states and 2919 transitions. [2019-10-07 12:15:27,477 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 12:15:27,477 INFO L276 IsEmpty]: Start isEmpty. Operand 2174 states and 2919 transitions. [2019-10-07 12:15:27,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2019-10-07 12:15:27,493 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:15:27,493 INFO L385 BasicCegarLoop]: trace histogram [40, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 12:15:27,493 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:15:27,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:15:27,494 INFO L82 PathProgramCache]: Analyzing trace with hash 1641323317, now seen corresponding path program 1 times [2019-10-07 12:15:27,494 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:15:27,494 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:15:27,494 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:15:27,495 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:15:27,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:15:27,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:15:27,873 INFO L134 CoverageAnalysis]: Checked inductivity of 1656 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1651 trivial. 0 not checked. [2019-10-07 12:15:27,873 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:15:27,874 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 12:15:27,874 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 12:15:29,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:15:29,070 INFO L256 TraceCheckSpWp]: Trace formula consists of 2513 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-07 12:15:29,091 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 12:15:29,309 INFO L134 CoverageAnalysis]: Checked inductivity of 1656 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1647 trivial. 0 not checked. [2019-10-07 12:15:29,309 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 12:15:29,858 INFO L134 CoverageAnalysis]: Checked inductivity of 1656 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1647 trivial. 0 not checked. [2019-10-07 12:15:29,859 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 12:15:29,859 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [9] total 14 [2019-10-07 12:15:29,860 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 12:15:29,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 12:15:29,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2019-10-07 12:15:29,861 INFO L87 Difference]: Start difference. First operand 2174 states and 2919 transitions. Second operand 7 states. [2019-10-07 12:15:30,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 12:15:30,218 INFO L93 Difference]: Finished difference Result 5155 states and 6939 transitions. [2019-10-07 12:15:30,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 12:15:30,219 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 296 [2019-10-07 12:15:30,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 12:15:30,249 INFO L225 Difference]: With dead ends: 5155 [2019-10-07 12:15:30,249 INFO L226 Difference]: Without dead ends: 3580 [2019-10-07 12:15:30,260 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 612 GetRequests, 586 SyntacticMatches, 7 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2019-10-07 12:15:30,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3580 states. [2019-10-07 12:15:30,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3580 to 3546. [2019-10-07 12:15:30,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3546 states. [2019-10-07 12:15:30,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3546 states to 3546 states and 4770 transitions. [2019-10-07 12:15:30,476 INFO L78 Accepts]: Start accepts. Automaton has 3546 states and 4770 transitions. Word has length 296 [2019-10-07 12:15:30,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 12:15:30,477 INFO L462 AbstractCegarLoop]: Abstraction has 3546 states and 4770 transitions. [2019-10-07 12:15:30,477 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 12:15:30,477 INFO L276 IsEmpty]: Start isEmpty. Operand 3546 states and 4770 transitions. [2019-10-07 12:15:30,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2019-10-07 12:15:30,500 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:15:30,501 INFO L385 BasicCegarLoop]: trace histogram [40, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 12:15:30,717 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 12:15:30,718 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:15:30,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:15:30,719 INFO L82 PathProgramCache]: Analyzing trace with hash 1670683702, now seen corresponding path program 1 times [2019-10-07 12:15:30,719 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:15:30,720 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:15:30,720 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:15:30,720 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:15:30,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:15:30,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:15:31,015 INFO L134 CoverageAnalysis]: Checked inductivity of 1655 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 1647 trivial. 0 not checked. [2019-10-07 12:15:31,016 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:15:31,016 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 12:15:31,016 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 12:15:31,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:15:31,607 INFO L256 TraceCheckSpWp]: Trace formula consists of 2515 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-07 12:15:31,616 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 12:15:31,754 INFO L134 CoverageAnalysis]: Checked inductivity of 1655 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1647 trivial. 0 not checked. [2019-10-07 12:15:31,754 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 12:15:32,222 INFO L134 CoverageAnalysis]: Checked inductivity of 1655 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1647 trivial. 0 not checked. [2019-10-07 12:15:32,222 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 12:15:32,223 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [10] total 15 [2019-10-07 12:15:32,224 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 12:15:32,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 12:15:32,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2019-10-07 12:15:32,225 INFO L87 Difference]: Start difference. First operand 3546 states and 4770 transitions. Second operand 7 states. [2019-10-07 12:15:32,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 12:15:32,690 INFO L93 Difference]: Finished difference Result 7910 states and 10654 transitions. [2019-10-07 12:15:32,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 12:15:32,690 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 297 [2019-10-07 12:15:32,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 12:15:32,728 INFO L225 Difference]: With dead ends: 7910 [2019-10-07 12:15:32,729 INFO L226 Difference]: Without dead ends: 4963 [2019-10-07 12:15:32,743 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 613 GetRequests, 586 SyntacticMatches, 7 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2019-10-07 12:15:32,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4963 states. [2019-10-07 12:15:33,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4963 to 4923. [2019-10-07 12:15:33,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4923 states. [2019-10-07 12:15:33,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4923 states to 4923 states and 6631 transitions. [2019-10-07 12:15:33,098 INFO L78 Accepts]: Start accepts. Automaton has 4923 states and 6631 transitions. Word has length 297 [2019-10-07 12:15:33,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 12:15:33,099 INFO L462 AbstractCegarLoop]: Abstraction has 4923 states and 6631 transitions. [2019-10-07 12:15:33,099 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 12:15:33,099 INFO L276 IsEmpty]: Start isEmpty. Operand 4923 states and 6631 transitions. [2019-10-07 12:15:33,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2019-10-07 12:15:33,141 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:15:33,142 INFO L385 BasicCegarLoop]: trace histogram [40, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 12:15:33,361 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 12:15:33,362 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:15:33,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:15:33,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1559268188, now seen corresponding path program 1 times [2019-10-07 12:15:33,363 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:15:33,363 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:15:33,363 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:15:33,370 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:15:33,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:15:33,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:15:33,714 INFO L134 CoverageAnalysis]: Checked inductivity of 1655 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 1647 trivial. 0 not checked. [2019-10-07 12:15:33,714 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:15:33,714 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 12:15:33,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 12:15:34,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:15:34,375 INFO L256 TraceCheckSpWp]: Trace formula consists of 2517 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-07 12:15:34,393 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 12:15:34,660 INFO L134 CoverageAnalysis]: Checked inductivity of 1655 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1647 trivial. 0 not checked. [2019-10-07 12:15:34,660 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 12:15:35,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1655 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1647 trivial. 0 not checked. [2019-10-07 12:15:35,235 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 12:15:35,235 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [10] total 15 [2019-10-07 12:15:35,236 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 12:15:35,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 12:15:35,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2019-10-07 12:15:35,237 INFO L87 Difference]: Start difference. First operand 4923 states and 6631 transitions. Second operand 7 states. [2019-10-07 12:15:35,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 12:15:35,700 INFO L93 Difference]: Finished difference Result 10662 states and 14375 transitions. [2019-10-07 12:15:35,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 12:15:35,700 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 298 [2019-10-07 12:15:35,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 12:15:35,755 INFO L225 Difference]: With dead ends: 10662 [2019-10-07 12:15:35,755 INFO L226 Difference]: Without dead ends: 6338 [2019-10-07 12:15:35,779 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 615 GetRequests, 588 SyntacticMatches, 7 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2019-10-07 12:15:35,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6338 states. [2019-10-07 12:15:36,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6338 to 4924. [2019-10-07 12:15:36,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4924 states. [2019-10-07 12:15:36,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4924 states to 4924 states and 6632 transitions. [2019-10-07 12:15:36,068 INFO L78 Accepts]: Start accepts. Automaton has 4924 states and 6632 transitions. Word has length 298 [2019-10-07 12:15:36,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 12:15:36,069 INFO L462 AbstractCegarLoop]: Abstraction has 4924 states and 6632 transitions. [2019-10-07 12:15:36,069 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 12:15:36,069 INFO L276 IsEmpty]: Start isEmpty. Operand 4924 states and 6632 transitions. [2019-10-07 12:15:36,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2019-10-07 12:15:36,097 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:15:36,098 INFO L385 BasicCegarLoop]: trace histogram [40, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 12:15:36,312 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 12:15:36,312 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:15:36,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:15:36,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1378767101, now seen corresponding path program 1 times [2019-10-07 12:15:36,313 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:15:36,313 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:15:36,313 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:15:36,313 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:15:36,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:15:36,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:15:36,700 INFO L134 CoverageAnalysis]: Checked inductivity of 1655 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 1647 trivial. 0 not checked. [2019-10-07 12:15:36,700 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:15:36,701 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 12:15:36,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 12:15:37,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:15:37,353 INFO L256 TraceCheckSpWp]: Trace formula consists of 2519 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-07 12:15:37,377 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 12:15:37,544 INFO L134 CoverageAnalysis]: Checked inductivity of 1655 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1647 trivial. 0 not checked. [2019-10-07 12:15:37,545 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 12:15:38,190 INFO L134 CoverageAnalysis]: Checked inductivity of 1655 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1647 trivial. 0 not checked. [2019-10-07 12:15:38,190 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 12:15:38,191 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [10] total 15 [2019-10-07 12:15:38,193 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 12:15:38,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 12:15:38,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2019-10-07 12:15:38,195 INFO L87 Difference]: Start difference. First operand 4924 states and 6632 transitions. Second operand 7 states. [2019-10-07 12:15:38,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 12:15:38,683 INFO L93 Difference]: Finished difference Result 10665 states and 14376 transitions. [2019-10-07 12:15:38,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 12:15:38,684 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 299 [2019-10-07 12:15:38,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 12:15:38,756 INFO L225 Difference]: With dead ends: 10665 [2019-10-07 12:15:38,756 INFO L226 Difference]: Without dead ends: 6340 [2019-10-07 12:15:38,777 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 617 GetRequests, 590 SyntacticMatches, 7 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2019-10-07 12:15:38,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6340 states. [2019-10-07 12:15:39,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6340 to 4925. [2019-10-07 12:15:39,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4925 states. [2019-10-07 12:15:39,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4925 states to 4925 states and 6631 transitions. [2019-10-07 12:15:39,062 INFO L78 Accepts]: Start accepts. Automaton has 4925 states and 6631 transitions. Word has length 299 [2019-10-07 12:15:39,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 12:15:39,062 INFO L462 AbstractCegarLoop]: Abstraction has 4925 states and 6631 transitions. [2019-10-07 12:15:39,062 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 12:15:39,063 INFO L276 IsEmpty]: Start isEmpty. Operand 4925 states and 6631 transitions. [2019-10-07 12:15:39,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2019-10-07 12:15:39,176 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:15:39,176 INFO L385 BasicCegarLoop]: trace histogram [33, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 12:15:39,384 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 12:15:39,385 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:15:39,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:15:39,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1802326449, now seen corresponding path program 1 times [2019-10-07 12:15:39,386 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:15:39,386 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:15:39,386 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:15:39,386 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:15:39,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:15:39,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:15:39,744 INFO L134 CoverageAnalysis]: Checked inductivity of 1175 backedges. 21 proven. 9 refuted. 0 times theorem prover too weak. 1145 trivial. 0 not checked. [2019-10-07 12:15:39,744 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:15:39,744 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 12:15:39,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 12:15:40,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:15:40,479 INFO L256 TraceCheckSpWp]: Trace formula consists of 2512 conjuncts, 16 conjunts are in the unsatisfiable core [2019-10-07 12:15:40,489 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 12:15:40,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1175 backedges. 16 proven. 11 refuted. 0 times theorem prover too weak. 1148 trivial. 0 not checked. [2019-10-07 12:15:40,767 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 12:15:41,271 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 12:15:41,540 INFO L134 CoverageAnalysis]: Checked inductivity of 1175 backedges. 22 proven. 5 refuted. 0 times theorem prover too weak. 1148 trivial. 0 not checked. [2019-10-07 12:15:41,541 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 12:15:41,570 INFO L162 IcfgInterpreter]: Started Sifa with 146 locations of interest [2019-10-07 12:15:41,570 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 12:15:41,577 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 12:15:41,584 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 12:15:41,585 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 12:16:02,686 WARN L191 SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 1173 [2019-10-07 12:16:05,654 WARN L191 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 133 [2019-10-07 12:16:06,127 WARN L191 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 1181 [2019-10-07 12:16:06,529 WARN L191 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 1181 [2019-10-07 12:16:06,811 WARN L191 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 1181 [2019-10-07 12:16:07,349 WARN L191 SmtUtils]: Spent 501.00 ms on a formula simplification that was a NOOP. DAG size: 1313 [2019-10-07 12:16:07,872 WARN L191 SmtUtils]: Spent 510.00 ms on a formula simplification that was a NOOP. DAG size: 1313 [2019-10-07 12:16:08,342 WARN L191 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 1313 [2019-10-07 12:16:08,885 WARN L191 SmtUtils]: Spent 501.00 ms on a formula simplification that was a NOOP. DAG size: 1313 [2019-10-07 12:16:09,780 WARN L191 SmtUtils]: Spent 871.00 ms on a formula simplification. DAG size of input: 1315 DAG size of output: 1313 [2019-10-07 12:16:10,261 WARN L191 SmtUtils]: Spent 477.00 ms on a formula simplification that was a NOOP. DAG size: 1313 [2019-10-07 12:16:10,778 WARN L191 SmtUtils]: Spent 477.00 ms on a formula simplification that was a NOOP. DAG size: 1313 [2019-10-07 12:16:11,253 WARN L191 SmtUtils]: Spent 471.00 ms on a formula simplification that was a NOOP. DAG size: 1313 [2019-10-07 12:16:11,769 WARN L191 SmtUtils]: Spent 513.00 ms on a formula simplification that was a NOOP. DAG size: 1313 [2019-10-07 12:16:12,253 WARN L191 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 1313 [2019-10-07 12:16:12,278 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 292 for LOIs [2019-10-07 12:16:12,602 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 12:16:12,812 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 12:16:13,229 WARN L191 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 1278 [2019-10-07 12:16:13,230 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1359 for LOIs [2019-10-07 12:16:13,694 WARN L191 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 1359 [2019-10-07 12:16:14,161 WARN L191 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 1359 [2019-10-07 12:16:14,928 WARN L191 SmtUtils]: Spent 672.00 ms on a formula simplification that was a NOOP. DAG size: 1463 [2019-10-07 12:16:15,449 WARN L191 SmtUtils]: Spent 480.00 ms on a formula simplification that was a NOOP. DAG size: 1369 [2019-10-07 12:16:15,922 WARN L191 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 1369 [2019-10-07 12:16:16,661 WARN L191 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 1475 [2019-10-07 12:16:27,511 WARN L191 SmtUtils]: Spent 8.79 s on a formula simplification that was a NOOP. DAG size: 1443 [2019-10-07 12:16:29,253 WARN L191 SmtUtils]: Spent 1.66 s on a formula simplification that was a NOOP. DAG size: 2525 [2019-10-07 12:16:34,108 WARN L191 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 2526 DAG size of output: 2524 [2019-10-07 12:16:34,382 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 12:16:34,383 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 12:16:34,394 INFO L168 Benchmark]: Toolchain (without parser) took 78421.53 ms. Allocated memory was 143.1 MB in the beginning and 1.5 GB in the end (delta: 1.4 GB). Free memory was 93.7 MB in the beginning and 566.5 MB in the end (delta: -472.7 MB). Peak memory consumption was 910.3 MB. Max. memory is 7.1 GB. [2019-10-07 12:16:34,395 INFO L168 Benchmark]: CDTParser took 1.44 ms. Allocated memory is still 143.1 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 12:16:34,396 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2594.49 ms. Allocated memory was 143.1 MB in the beginning and 253.8 MB in the end (delta: 110.6 MB). Free memory was 93.5 MB in the beginning and 197.8 MB in the end (delta: -104.3 MB). Peak memory consumption was 117.0 MB. Max. memory is 7.1 GB. [2019-10-07 12:16:34,397 INFO L168 Benchmark]: Boogie Preprocessor took 337.10 ms. Allocated memory is still 253.8 MB. Free memory was 197.8 MB in the beginning and 184.6 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. [2019-10-07 12:16:34,398 INFO L168 Benchmark]: RCFGBuilder took 4145.39 ms. Allocated memory was 253.8 MB in the beginning and 332.4 MB in the end (delta: 78.6 MB). Free memory was 184.6 MB in the beginning and 87.0 MB in the end (delta: 97.6 MB). Peak memory consumption was 176.3 MB. Max. memory is 7.1 GB. [2019-10-07 12:16:34,398 INFO L168 Benchmark]: TraceAbstraction took 71339.35 ms. Allocated memory was 332.4 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 87.0 MB in the beginning and 566.5 MB in the end (delta: -479.5 MB). Peak memory consumption was 714.3 MB. Max. memory is 7.1 GB. [2019-10-07 12:16:34,405 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.44 ms. Allocated memory is still 143.1 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2594.49 ms. Allocated memory was 143.1 MB in the beginning and 253.8 MB in the end (delta: 110.6 MB). Free memory was 93.5 MB in the beginning and 197.8 MB in the end (delta: -104.3 MB). Peak memory consumption was 117.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 337.10 ms. Allocated memory is still 253.8 MB. Free memory was 197.8 MB in the beginning and 184.6 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4145.39 ms. Allocated memory was 253.8 MB in the beginning and 332.4 MB in the end (delta: 78.6 MB). Free memory was 184.6 MB in the beginning and 87.0 MB in the end (delta: 97.6 MB). Peak memory consumption was 176.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 71339.35 ms. Allocated memory was 332.4 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 87.0 MB in the beginning and 566.5 MB in the end (delta: -479.5 MB). Peak memory consumption was 714.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...