/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -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-fb55353 [2019-11-07 03:45:46,566 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 03:45:46,569 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 03:45:46,589 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 03:45:46,589 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 03:45:46,591 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 03:45:46,593 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 03:45:46,603 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 03:45:46,608 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 03:45:46,611 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 03:45:46,612 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 03:45:46,613 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 03:45:46,614 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 03:45:46,615 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 03:45:46,618 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 03:45:46,620 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 03:45:46,622 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 03:45:46,623 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 03:45:46,624 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 03:45:46,629 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 03:45:46,633 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 03:45:46,635 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 03:45:46,638 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 03:45:46,638 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 03:45:46,640 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 03:45:46,641 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 03:45:46,641 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 03:45:46,643 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 03:45:46,643 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 03:45:46,645 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 03:45:46,645 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 03:45:46,646 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 03:45:46,647 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 03:45:46,647 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 03:45:46,649 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 03:45:46,649 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 03:45:46,650 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 03:45:46,650 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 03:45:46,651 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 03:45:46,651 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 03:45:46,652 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 03:45:46,653 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 [2019-11-07 03:45:46,685 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 03:45:46,685 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 03:45:46,688 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 03:45:46,688 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 03:45:46,688 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 03:45:46,688 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 03:45:46,688 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 03:45:46,689 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 03:45:46,689 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 03:45:46,689 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 03:45:46,689 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 03:45:46,689 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 03:45:46,690 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 03:45:46,693 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 03:45:46,693 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 03:45:46,693 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 03:45:46,694 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 03:45:46,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 03:45:46,694 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 03:45:46,694 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 03:45:46,694 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 03:45:46,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 03:45:46,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 03:45:46,695 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 03:45:46,695 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 03:45:46,695 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 03:45:46,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 03:45:46,700 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 03:45:46,700 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 [2019-11-07 03:45:46,967 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 03:45:46,983 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 03:45:46,986 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 03:45:46,988 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 03:45:46,988 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 03:45:46,989 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--realtek--atp.ko-entry_point.cil.out.i [2019-11-07 03:45:47,062 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fb7f41be/8535d77a0f6b4c72ab3fc72742771ff7/FLAG61cf52f78 [2019-11-07 03:45:47,910 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 03:45:47,912 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--realtek--atp.ko-entry_point.cil.out.i [2019-11-07 03:45:47,969 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fb7f41be/8535d77a0f6b4c72ab3fc72742771ff7/FLAG61cf52f78 [2019-11-07 03:45:48,451 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fb7f41be/8535d77a0f6b4c72ab3fc72742771ff7 [2019-11-07 03:45:48,460 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 03:45:48,461 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 03:45:48,462 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 03:45:48,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 03:45:48,466 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 03:45:48,467 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:45:48" (1/1) ... [2019-11-07 03:45:48,470 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f907bf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:45:48, skipping insertion in model container [2019-11-07 03:45:48,470 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:45:48" (1/1) ... [2019-11-07 03:45:48,478 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 03:45:48,599 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 03:45:50,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 03:45:50,337 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 03:45:50,607 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 03:45:50,989 INFO L192 MainTranslator]: Completed translation [2019-11-07 03:45:50,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:45:50 WrapperNode [2019-11-07 03:45:50,990 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 03:45:50,990 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 03:45:50,991 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 03:45:50,991 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 03:45:51,005 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:45:50" (1/1) ... [2019-11-07 03:45:51,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:45:50" (1/1) ... [2019-11-07 03:45:51,056 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:45:50" (1/1) ... [2019-11-07 03:45:51,057 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:45:50" (1/1) ... [2019-11-07 03:45:51,147 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:45:50" (1/1) ... [2019-11-07 03:45:51,170 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:45:50" (1/1) ... [2019-11-07 03:45:51,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:45:50" (1/1) ... [2019-11-07 03:45:51,221 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 03:45:51,222 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 03:45:51,222 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 03:45:51,222 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 03:45:51,224 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:45:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 03:45:51,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 03:45:51,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 03:45:51,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2019-11-07 03:45:51,289 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-11-07 03:45:51,289 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2019-11-07 03:45:51,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2019-11-07 03:45:51,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-07 03:45:51,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-07 03:45:51,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-11-07 03:45:51,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-11-07 03:45:51,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-11-07 03:45:51,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-11-07 03:45:51,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-11-07 03:45:51,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-11-07 03:45:51,291 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-11-07 03:45:51,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_5 [2019-11-07 03:45:51,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_9 [2019-11-07 03:45:51,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_12 [2019-11-07 03:45:51,292 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2019-11-07 03:45:51,293 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2019-11-07 03:45:51,293 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2019-11-07 03:45:51,293 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2019-11-07 03:45:51,293 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2019-11-07 03:45:51,294 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2019-11-07 03:45:51,294 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2019-11-07 03:45:51,294 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2019-11-07 03:45:51,294 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2019-11-07 03:45:51,294 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2019-11-07 03:45:51,294 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2019-11-07 03:45:51,295 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2019-11-07 03:45:51,296 INFO L138 BoogieDeclarations]: Found implementation of procedure inbyte [2019-11-07 03:45:51,296 INFO L138 BoogieDeclarations]: Found implementation of procedure read_nibble [2019-11-07 03:45:51,296 INFO L138 BoogieDeclarations]: Found implementation of procedure read_byte_mode0 [2019-11-07 03:45:51,297 INFO L138 BoogieDeclarations]: Found implementation of procedure read_byte_mode2 [2019-11-07 03:45:51,298 INFO L138 BoogieDeclarations]: Found implementation of procedure read_byte_mode4 [2019-11-07 03:45:51,298 INFO L138 BoogieDeclarations]: Found implementation of procedure read_byte_mode6 [2019-11-07 03:45:51,298 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2019-11-07 03:45:51,298 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg_high [2019-11-07 03:45:51,298 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg_byte [2019-11-07 03:45:51,298 INFO L138 BoogieDeclarations]: Found implementation of procedure write_byte_mode0 [2019-11-07 03:45:51,299 INFO L138 BoogieDeclarations]: Found implementation of procedure write_byte_mode1 [2019-11-07 03:45:51,299 INFO L138 BoogieDeclarations]: Found implementation of procedure atp_init [2019-11-07 03:45:51,299 INFO L138 BoogieDeclarations]: Found implementation of procedure atp_probe1 [2019-11-07 03:45:51,299 INFO L138 BoogieDeclarations]: Found implementation of procedure get_node_ID [2019-11-07 03:45:51,299 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_op [2019-11-07 03:45:51,299 INFO L138 BoogieDeclarations]: Found implementation of procedure net_open [2019-11-07 03:45:51,300 INFO L138 BoogieDeclarations]: Found implementation of procedure hardware_init [2019-11-07 03:45:51,300 INFO L138 BoogieDeclarations]: Found implementation of procedure trigger_send [2019-11-07 03:45:51,300 INFO L138 BoogieDeclarations]: Found implementation of procedure write_packet [2019-11-07 03:45:51,300 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_timeout [2019-11-07 03:45:51,300 INFO L138 BoogieDeclarations]: Found implementation of procedure atp_send_packet [2019-11-07 03:45:51,300 INFO L138 BoogieDeclarations]: Found implementation of procedure atp_interrupt [2019-11-07 03:45:51,300 INFO L138 BoogieDeclarations]: Found implementation of procedure atp_timed_checker [2019-11-07 03:45:51,301 INFO L138 BoogieDeclarations]: Found implementation of procedure net_rx [2019-11-07 03:45:51,301 INFO L138 BoogieDeclarations]: Found implementation of procedure read_block [2019-11-07 03:45:51,301 INFO L138 BoogieDeclarations]: Found implementation of procedure net_close [2019-11-07 03:45:51,301 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2019-11-07 03:45:51,301 INFO L138 BoogieDeclarations]: Found implementation of procedure atp_init_module [2019-11-07 03:45:51,302 INFO L138 BoogieDeclarations]: Found implementation of procedure atp_cleanup_module [2019-11-07 03:45:51,303 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_2 [2019-11-07 03:45:51,303 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2019-11-07 03:45:51,303 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_2 [2019-11-07 03:45:51,303 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_2 [2019-11-07 03:45:51,303 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2019-11-07 03:45:51,303 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2019-11-07 03:45:51,304 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2019-11-07 03:45:51,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2019-11-07 03:45:51,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_3 [2019-11-07 03:45:51,304 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2019-11-07 03:45:51,304 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 03:45:51,305 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-11-07 03:45:51,305 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-11-07 03:45:51,305 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-11-07 03:45:51,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmem_cache_alloc_20 [2019-11-07 03:45:51,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pskb_expand_head_26 [2019-11-07 03:45:51,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_clone_28 [2019-11-07 03:45:51,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_copy_30 [2019-11-07 03:45:51,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___netdev_alloc_skb_31 [2019-11-07 03:45:51,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___netdev_alloc_skb_32 [2019-11-07 03:45:51,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___netdev_alloc_skb_33 [2019-11-07 03:45:51,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pskb_expand_head_34 [2019-11-07 03:45:51,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pskb_expand_head_35 [2019-11-07 03:45:51,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_clone_36 [2019-11-07 03:45:51,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_37 [2019-11-07 03:45:51,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev_38 [2019-11-07 03:45:51,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_39 [2019-11-07 03:45:51,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_40 [2019-11-07 03:45:51,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_41 [2019-11-07 03:45:51,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_42 [2019-11-07 03:45:51,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev_43 [2019-11-07 03:45:51,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-11-07 03:45:51,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-11-07 03:45:51,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-11-07 03:45:51,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-11-07 03:45:51,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-11-07 03:45:51,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2019-11-07 03:45:51,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2019-11-07 03:45:51,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2019-11-07 03:45:51,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2019-11-07 03:45:51,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2019-11-07 03:45:51,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2019-11-07 03:45:51,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-11-07 03:45:51,316 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-11-07 03:45:51,316 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-11-07 03:45:51,316 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-11-07 03:45:51,316 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2019-11-07 03:45:51,317 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_etherdev_mqs [2019-11-07 03:45:51,317 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2019-11-07 03:45:51,317 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2019-11-07 03:45:51,317 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2019-11-07 03:45:51,317 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2019-11-07 03:45:51,317 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2019-11-07 03:45:51,317 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2019-11-07 03:45:51,318 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2019-11-07 03:45:51,318 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2019-11-07 03:45:51,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-11-07 03:45:51,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-11-07 03:45:51,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_init_3 [2019-11-07 03:45:51,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_uninit_3 [2019-11-07 03:45:51,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2019-11-07 03:45:51,319 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2019-11-07 03:45:51,319 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2019-11-07 03:45:51,320 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-11-07 03:45:51,320 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2019-11-07 03:45:51,321 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2019-11-07 03:45:51,321 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-11-07 03:45:51,321 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2019-11-07 03:45:51,321 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-11-07 03:45:51,321 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-11-07 03:45:51,322 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-07 03:45:51,322 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-07 03:45:51,322 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 03:45:51,322 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-11-07 03:45:51,323 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2019-11-07 03:45:51,327 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2019-11-07 03:45:51,327 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-11-07 03:45:51,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2019-11-07 03:45:51,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2019-11-07 03:45:51,327 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 03:45:51,328 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-07 03:45:51,329 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-07 03:45:51,329 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 03:45:51,329 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-11-07 03:45:51,329 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-07 03:45:51,336 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-07 03:45:51,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-07 03:45:51,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 03:45:51,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-07 03:45:51,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-07 03:45:51,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-11-07 03:45:51,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-11-07 03:45:51,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-07 03:45:51,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-11-07 03:45:51,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-11-07 03:45:51,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-11-07 03:45:51,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-11-07 03:45:51,339 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-11-07 03:45:51,339 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-11-07 03:45:51,339 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-11-07 03:45:51,339 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-11-07 03:45:51,339 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-11-07 03:45:51,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_5 [2019-11-07 03:45:51,340 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-11-07 03:45:51,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_9 [2019-11-07 03:45:51,340 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-11-07 03:45:51,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_12 [2019-11-07 03:45:51,340 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-11-07 03:45:51,340 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2019-11-07 03:45:51,340 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2019-11-07 03:45:51,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_40 [2019-11-07 03:45:51,341 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2019-11-07 03:45:51,341 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2019-11-07 03:45:51,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmem_cache_alloc_20 [2019-11-07 03:45:51,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2019-11-07 03:45:51,341 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_2 [2019-11-07 03:45:51,342 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2019-11-07 03:45:51,342 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_2 [2019-11-07 03:45:51,342 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_2 [2019-11-07 03:45:51,342 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2019-11-07 03:45:51,342 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2019-11-07 03:45:51,342 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2019-11-07 03:45:51,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2019-11-07 03:45:51,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_3 [2019-11-07 03:45:51,343 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2019-11-07 03:45:51,343 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2019-11-07 03:45:51,343 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2019-11-07 03:45:51,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_39 [2019-11-07 03:45:51,343 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2019-11-07 03:45:51,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_41 [2019-11-07 03:45:51,343 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2019-11-07 03:45:51,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_clone_28 [2019-11-07 03:45:51,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_clone_36 [2019-11-07 03:45:51,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_copy_30 [2019-11-07 03:45:51,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pskb_expand_head_26 [2019-11-07 03:45:51,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pskb_expand_head_34 [2019-11-07 03:45:51,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pskb_expand_head_35 [2019-11-07 03:45:51,344 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-11-07 03:45:51,345 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2019-11-07 03:45:51,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 03:45:51,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 03:45:51,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 03:45:51,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 03:45:51,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___netdev_alloc_skb_31 [2019-11-07 03:45:51,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___netdev_alloc_skb_32 [2019-11-07 03:45:51,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___netdev_alloc_skb_33 [2019-11-07 03:45:51,346 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2019-11-07 03:45:51,346 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2019-11-07 03:45:51,346 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2019-11-07 03:45:51,347 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2019-11-07 03:45:51,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev_38 [2019-11-07 03:45:51,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev_43 [2019-11-07 03:45:51,348 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2019-11-07 03:45:51,348 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2019-11-07 03:45:51,348 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2019-11-07 03:45:51,348 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2019-11-07 03:45:51,349 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2019-11-07 03:45:51,349 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2019-11-07 03:45:51,349 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2019-11-07 03:45:51,350 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2019-11-07 03:45:51,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_37 [2019-11-07 03:45:51,350 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2019-11-07 03:45:51,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_42 [2019-11-07 03:45:51,350 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2019-11-07 03:45:51,350 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2019-11-07 03:45:51,350 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2019-11-07 03:45:51,351 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2019-11-07 03:45:51,351 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_etherdev_mqs [2019-11-07 03:45:51,351 INFO L130 BoogieDeclarations]: Found specification of procedure inbyte [2019-11-07 03:45:51,351 INFO L130 BoogieDeclarations]: Found specification of procedure read_nibble [2019-11-07 03:45:51,351 INFO L130 BoogieDeclarations]: Found specification of procedure read_byte_mode0 [2019-11-07 03:45:51,351 INFO L130 BoogieDeclarations]: Found specification of procedure read_byte_mode2 [2019-11-07 03:45:51,351 INFO L130 BoogieDeclarations]: Found specification of procedure read_byte_mode4 [2019-11-07 03:45:51,351 INFO L130 BoogieDeclarations]: Found specification of procedure read_byte_mode6 [2019-11-07 03:45:51,352 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2019-11-07 03:45:51,352 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg_high [2019-11-07 03:45:51,352 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg_byte [2019-11-07 03:45:51,352 INFO L130 BoogieDeclarations]: Found specification of procedure write_byte_mode0 [2019-11-07 03:45:51,352 INFO L130 BoogieDeclarations]: Found specification of procedure write_byte_mode1 [2019-11-07 03:45:51,352 INFO L130 BoogieDeclarations]: Found specification of procedure atp_timed_checker [2019-11-07 03:45:51,352 INFO L130 BoogieDeclarations]: Found specification of procedure atp_probe1 [2019-11-07 03:45:51,352 INFO L130 BoogieDeclarations]: Found specification of procedure get_node_ID [2019-11-07 03:45:51,353 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_op [2019-11-07 03:45:51,353 INFO L130 BoogieDeclarations]: Found specification of procedure net_open [2019-11-07 03:45:51,353 INFO L130 BoogieDeclarations]: Found specification of procedure hardware_init [2019-11-07 03:45:51,353 INFO L130 BoogieDeclarations]: Found specification of procedure write_packet [2019-11-07 03:45:51,353 INFO L130 BoogieDeclarations]: Found specification of procedure trigger_send [2019-11-07 03:45:51,353 INFO L130 BoogieDeclarations]: Found specification of procedure atp_send_packet [2019-11-07 03:45:51,353 INFO L130 BoogieDeclarations]: Found specification of procedure atp_interrupt [2019-11-07 03:45:51,353 INFO L130 BoogieDeclarations]: Found specification of procedure net_rx [2019-11-07 03:45:51,354 INFO L130 BoogieDeclarations]: Found specification of procedure read_block [2019-11-07 03:45:51,354 INFO L130 BoogieDeclarations]: Found specification of procedure net_close [2019-11-07 03:45:51,354 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2019-11-07 03:45:51,354 INFO L130 BoogieDeclarations]: Found specification of procedure tx_timeout [2019-11-07 03:45:51,354 INFO L130 BoogieDeclarations]: Found specification of procedure atp_init [2019-11-07 03:45:51,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 03:45:51,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 03:45:51,354 INFO L130 BoogieDeclarations]: Found specification of procedure atp_init_module [2019-11-07 03:45:51,355 INFO L130 BoogieDeclarations]: Found specification of procedure atp_cleanup_module [2019-11-07 03:45:51,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_uninit_3 [2019-11-07 03:45:51,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-11-07 03:45:51,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-11-07 03:45:51,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_init_3 [2019-11-07 03:45:51,361 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2019-11-07 03:45:51,361 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 03:45:51,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-11-07 03:45:51,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-11-07 03:45:51,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-11-07 03:45:51,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-11-07 03:45:51,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-11-07 03:45:51,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2019-11-07 03:45:51,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2019-11-07 03:45:51,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2019-11-07 03:45:51,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2019-11-07 03:45:51,365 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-11-07 03:45:51,365 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2019-11-07 03:45:51,365 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 03:45:51,365 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-07 03:45:51,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 03:45:51,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 03:45:51,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-07 03:45:51,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 03:45:52,505 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-11-07 03:45:55,161 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 03:45:55,161 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-11-07 03:45:55,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:45:55 BoogieIcfgContainer [2019-11-07 03:45:55,164 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 03:45:55,165 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 03:45:55,165 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 03:45:55,169 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 03:45:55,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:45:48" (1/3) ... [2019-11-07 03:45:55,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13c5e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:45:55, skipping insertion in model container [2019-11-07 03:45:55,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:45:50" (2/3) ... [2019-11-07 03:45:55,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13c5e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:45:55, skipping insertion in model container [2019-11-07 03:45:55,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:45:55" (3/3) ... [2019-11-07 03:45:55,175 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--realtek--atp.ko-entry_point.cil.out.i [2019-11-07 03:45:55,187 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 03:45:55,200 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 03:45:55,213 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 03:45:55,254 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 03:45:55,254 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 03:45:55,254 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 03:45:55,254 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 03:45:55,255 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 03:45:55,255 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 03:45:55,255 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 03:45:55,255 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 03:45:55,317 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states. [2019-11-07 03:45:55,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2019-11-07 03:45:55,452 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:45:55,454 INFO L410 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] [2019-11-07 03:45:55,456 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:45:55,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:45:55,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1779509212, now seen corresponding path program 1 times [2019-11-07 03:45:55,475 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:45:55,475 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195137729] [2019-11-07 03:45:55,476 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:45:55,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:45:56,474 INFO L134 CoverageAnalysis]: Checked inductivity of 1647 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1647 trivial. 0 not checked. [2019-11-07 03:45:56,475 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195137729] [2019-11-07 03:45:56,476 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:45:56,476 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 03:45:56,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173612293] [2019-11-07 03:45:56,487 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 03:45:56,487 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:45:56,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 03:45:56,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 03:45:56,504 INFO L87 Difference]: Start difference. First operand 879 states. Second operand 5 states. [2019-11-07 03:45:56,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:45:56,878 INFO L93 Difference]: Finished difference Result 2480 states and 3374 transitions. [2019-11-07 03:45:56,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 03:45:56,880 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 281 [2019-11-07 03:45:56,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:45:56,926 INFO L225 Difference]: With dead ends: 2480 [2019-11-07 03:45:56,927 INFO L226 Difference]: Without dead ends: 1597 [2019-11-07 03:45:56,941 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-07 03:45:56,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1597 states. [2019-11-07 03:45:57,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1597 to 1582. [2019-11-07 03:45:57,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1582 states. [2019-11-07 03:45:57,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 2140 transitions. [2019-11-07 03:45:57,319 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 2140 transitions. Word has length 281 [2019-11-07 03:45:57,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:45:57,322 INFO L462 AbstractCegarLoop]: Abstraction has 1582 states and 2140 transitions. [2019-11-07 03:45:57,322 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 03:45:57,322 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 2140 transitions. [2019-11-07 03:45:57,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2019-11-07 03:45:57,343 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:45:57,343 INFO L410 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] [2019-11-07 03:45:57,344 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:45:57,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:45:57,344 INFO L82 PathProgramCache]: Analyzing trace with hash 941138748, now seen corresponding path program 1 times [2019-11-07 03:45:57,344 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:45:57,345 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517109664] [2019-11-07 03:45:57,345 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:45:57,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:45:57,632 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1143 trivial. 0 not checked. [2019-11-07 03:45:57,633 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517109664] [2019-11-07 03:45:57,633 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:45:57,633 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 03:45:57,633 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148388987] [2019-11-07 03:45:57,635 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 03:45:57,635 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:45:57,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 03:45:57,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 03:45:57,636 INFO L87 Difference]: Start difference. First operand 1582 states and 2140 transitions. Second operand 5 states. [2019-11-07 03:45:57,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:45:57,882 INFO L93 Difference]: Finished difference Result 3484 states and 4724 transitions. [2019-11-07 03:45:57,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 03:45:57,883 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 255 [2019-11-07 03:45:57,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:45:57,915 INFO L225 Difference]: With dead ends: 3484 [2019-11-07 03:45:57,915 INFO L226 Difference]: Without dead ends: 2383 [2019-11-07 03:45:57,924 INFO L630 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 [2019-11-07 03:45:57,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2383 states. [2019-11-07 03:45:58,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2383 to 2363. [2019-11-07 03:45:58,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2363 states. [2019-11-07 03:45:58,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2363 states to 2363 states and 3198 transitions. [2019-11-07 03:45:58,084 INFO L78 Accepts]: Start accepts. Automaton has 2363 states and 3198 transitions. Word has length 255 [2019-11-07 03:45:58,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:45:58,085 INFO L462 AbstractCegarLoop]: Abstraction has 2363 states and 3198 transitions. [2019-11-07 03:45:58,085 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 03:45:58,085 INFO L276 IsEmpty]: Start isEmpty. Operand 2363 states and 3198 transitions. [2019-11-07 03:45:58,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2019-11-07 03:45:58,102 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:45:58,102 INFO L410 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] [2019-11-07 03:45:58,102 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:45:58,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:45:58,103 INFO L82 PathProgramCache]: Analyzing trace with hash -870227043, now seen corresponding path program 1 times [2019-11-07 03:45:58,104 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:45:58,104 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786513747] [2019-11-07 03:45:58,104 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:45:58,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:45:58,469 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1143 trivial. 0 not checked. [2019-11-07 03:45:58,470 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786513747] [2019-11-07 03:45:58,470 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:45:58,470 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 03:45:58,470 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810912088] [2019-11-07 03:45:58,471 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 03:45:58,471 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:45:58,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 03:45:58,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 03:45:58,473 INFO L87 Difference]: Start difference. First operand 2363 states and 3198 transitions. Second operand 5 states. [2019-11-07 03:45:58,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:45:58,738 INFO L93 Difference]: Finished difference Result 4270 states and 5784 transitions. [2019-11-07 03:45:58,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 03:45:58,738 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 256 [2019-11-07 03:45:58,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:45:58,761 INFO L225 Difference]: With dead ends: 4270 [2019-11-07 03:45:58,761 INFO L226 Difference]: Without dead ends: 2387 [2019-11-07 03:45:58,775 INFO L630 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 [2019-11-07 03:45:58,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2387 states. [2019-11-07 03:45:58,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2387 to 2367. [2019-11-07 03:45:58,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2367 states. [2019-11-07 03:45:58,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2367 states to 2367 states and 3200 transitions. [2019-11-07 03:45:58,959 INFO L78 Accepts]: Start accepts. Automaton has 2367 states and 3200 transitions. Word has length 256 [2019-11-07 03:45:58,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:45:58,960 INFO L462 AbstractCegarLoop]: Abstraction has 2367 states and 3200 transitions. [2019-11-07 03:45:58,960 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 03:45:58,960 INFO L276 IsEmpty]: Start isEmpty. Operand 2367 states and 3200 transitions. [2019-11-07 03:45:58,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2019-11-07 03:45:58,976 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:45:58,976 INFO L410 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] [2019-11-07 03:45:58,977 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:45:58,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:45:58,977 INFO L82 PathProgramCache]: Analyzing trace with hash 815494201, now seen corresponding path program 1 times [2019-11-07 03:45:58,978 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:45:58,978 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206209599] [2019-11-07 03:45:58,978 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:45:59,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:45:59,256 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1143 trivial. 0 not checked. [2019-11-07 03:45:59,257 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206209599] [2019-11-07 03:45:59,258 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:45:59,258 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 03:45:59,258 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974079475] [2019-11-07 03:45:59,259 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 03:45:59,260 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:45:59,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 03:45:59,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 03:45:59,261 INFO L87 Difference]: Start difference. First operand 2367 states and 3200 transitions. Second operand 5 states. [2019-11-07 03:45:59,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:45:59,456 INFO L93 Difference]: Finished difference Result 4079 states and 5503 transitions. [2019-11-07 03:45:59,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 03:45:59,457 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 257 [2019-11-07 03:45:59,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:45:59,473 INFO L225 Difference]: With dead ends: 4079 [2019-11-07 03:45:59,473 INFO L226 Difference]: Without dead ends: 2191 [2019-11-07 03:45:59,483 INFO L630 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 [2019-11-07 03:45:59,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2191 states. [2019-11-07 03:45:59,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2191 to 2174. [2019-11-07 03:45:59,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2174 states. [2019-11-07 03:45:59,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2174 states to 2174 states and 2919 transitions. [2019-11-07 03:45:59,605 INFO L78 Accepts]: Start accepts. Automaton has 2174 states and 2919 transitions. Word has length 257 [2019-11-07 03:45:59,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:45:59,606 INFO L462 AbstractCegarLoop]: Abstraction has 2174 states and 2919 transitions. [2019-11-07 03:45:59,606 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 03:45:59,606 INFO L276 IsEmpty]: Start isEmpty. Operand 2174 states and 2919 transitions. [2019-11-07 03:45:59,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2019-11-07 03:45:59,621 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:45:59,621 INFO L410 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] [2019-11-07 03:45:59,621 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:45:59,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:45:59,622 INFO L82 PathProgramCache]: Analyzing trace with hash 1641323317, now seen corresponding path program 1 times [2019-11-07 03:45:59,622 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:45:59,622 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496624973] [2019-11-07 03:45:59,622 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:45:59,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:45:59,955 INFO L134 CoverageAnalysis]: Checked inductivity of 1656 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1651 trivial. 0 not checked. [2019-11-07 03:45:59,955 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496624973] [2019-11-07 03:45:59,956 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [348927629] [2019-11-07 03:45:59,956 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 03:46:01,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:46:01,241 INFO L256 TraceCheckSpWp]: Trace formula consists of 2513 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-07 03:46:01,278 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 03:46:01,479 INFO L134 CoverageAnalysis]: Checked inductivity of 1656 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1647 trivial. 0 not checked. [2019-11-07 03:46:01,479 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 03:46:02,014 INFO L134 CoverageAnalysis]: Checked inductivity of 1656 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1647 trivial. 0 not checked. [2019-11-07 03:46:02,015 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-07 03:46:02,015 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [9] total 14 [2019-11-07 03:46:02,016 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280464146] [2019-11-07 03:46:02,017 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 03:46:02,017 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:46:02,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 03:46:02,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2019-11-07 03:46:02,018 INFO L87 Difference]: Start difference. First operand 2174 states and 2919 transitions. Second operand 7 states. [2019-11-07 03:46:02,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:46:02,367 INFO L93 Difference]: Finished difference Result 5155 states and 6939 transitions. [2019-11-07 03:46:02,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-07 03:46:02,368 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 296 [2019-11-07 03:46:02,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:46:02,393 INFO L225 Difference]: With dead ends: 5155 [2019-11-07 03:46:02,393 INFO L226 Difference]: Without dead ends: 3580 [2019-11-07 03:46:02,402 INFO L630 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 [2019-11-07 03:46:02,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3580 states. [2019-11-07 03:46:02,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3580 to 3546. [2019-11-07 03:46:02,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3546 states. [2019-11-07 03:46:02,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3546 states to 3546 states and 4770 transitions. [2019-11-07 03:46:02,676 INFO L78 Accepts]: Start accepts. Automaton has 3546 states and 4770 transitions. Word has length 296 [2019-11-07 03:46:02,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:46:02,676 INFO L462 AbstractCegarLoop]: Abstraction has 3546 states and 4770 transitions. [2019-11-07 03:46:02,676 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 03:46:02,676 INFO L276 IsEmpty]: Start isEmpty. Operand 3546 states and 4770 transitions. [2019-11-07 03:46:02,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2019-11-07 03:46:02,700 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:46:02,701 INFO L410 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, 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] [2019-11-07 03:46:02,911 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 03:46:02,911 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:46:02,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:46:02,912 INFO L82 PathProgramCache]: Analyzing trace with hash 781740838, now seen corresponding path program 1 times [2019-11-07 03:46:02,912 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:46:02,913 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889743451] [2019-11-07 03:46:02,913 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:46:02,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:46:03,214 INFO L134 CoverageAnalysis]: Checked inductivity of 1151 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 1143 trivial. 0 not checked. [2019-11-07 03:46:03,215 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889743451] [2019-11-07 03:46:03,215 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553605348] [2019-11-07 03:46:03,215 INFO L94 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 [2019-11-07 03:46:03,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:46:03,870 INFO L256 TraceCheckSpWp]: Trace formula consists of 2417 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-07 03:46:03,878 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 03:46:04,021 INFO L134 CoverageAnalysis]: Checked inductivity of 1151 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1143 trivial. 0 not checked. [2019-11-07 03:46:04,021 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 03:46:04,428 INFO L134 CoverageAnalysis]: Checked inductivity of 1151 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1143 trivial. 0 not checked. [2019-11-07 03:46:04,429 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-07 03:46:04,429 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [10] total 15 [2019-11-07 03:46:04,430 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258693236] [2019-11-07 03:46:04,430 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 03:46:04,431 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:46:04,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 03:46:04,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2019-11-07 03:46:04,431 INFO L87 Difference]: Start difference. First operand 3546 states and 4770 transitions. Second operand 7 states. [2019-11-07 03:46:04,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:46:04,825 INFO L93 Difference]: Finished difference Result 7910 states and 10654 transitions. [2019-11-07 03:46:04,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-07 03:46:04,826 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 270 [2019-11-07 03:46:04,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:46:04,910 INFO L225 Difference]: With dead ends: 7910 [2019-11-07 03:46:04,910 INFO L226 Difference]: Without dead ends: 4963 [2019-11-07 03:46:04,923 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 559 GetRequests, 532 SyntacticMatches, 7 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2019-11-07 03:46:04,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4963 states. [2019-11-07 03:46:05,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4963 to 4923. [2019-11-07 03:46:05,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4923 states. [2019-11-07 03:46:05,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4923 states to 4923 states and 6631 transitions. [2019-11-07 03:46:05,242 INFO L78 Accepts]: Start accepts. Automaton has 4923 states and 6631 transitions. Word has length 270 [2019-11-07 03:46:05,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:46:05,243 INFO L462 AbstractCegarLoop]: Abstraction has 4923 states and 6631 transitions. [2019-11-07 03:46:05,243 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 03:46:05,243 INFO L276 IsEmpty]: Start isEmpty. Operand 4923 states and 6631 transitions. [2019-11-07 03:46:05,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2019-11-07 03:46:05,271 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:46:05,272 INFO L410 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] [2019-11-07 03:46:05,478 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 03:46:05,478 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:46:05,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:46:05,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1559268188, now seen corresponding path program 1 times [2019-11-07 03:46:05,479 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:46:05,480 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339608628] [2019-11-07 03:46:05,480 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:46:05,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:46:05,774 INFO L134 CoverageAnalysis]: Checked inductivity of 1655 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 1647 trivial. 0 not checked. [2019-11-07 03:46:05,775 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339608628] [2019-11-07 03:46:05,775 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258349288] [2019-11-07 03:46:05,775 INFO L94 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 [2019-11-07 03:46:06,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:46:06,438 INFO L256 TraceCheckSpWp]: Trace formula consists of 2517 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-07 03:46:06,466 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 03:46:06,765 INFO L134 CoverageAnalysis]: Checked inductivity of 1655 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1647 trivial. 0 not checked. [2019-11-07 03:46:06,766 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 03:46:07,247 INFO L134 CoverageAnalysis]: Checked inductivity of 1655 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1647 trivial. 0 not checked. [2019-11-07 03:46:07,248 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-07 03:46:07,248 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [10] total 15 [2019-11-07 03:46:07,249 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570888573] [2019-11-07 03:46:07,251 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 03:46:07,251 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:46:07,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 03:46:07,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2019-11-07 03:46:07,252 INFO L87 Difference]: Start difference. First operand 4923 states and 6631 transitions. Second operand 7 states. [2019-11-07 03:46:07,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:46:07,678 INFO L93 Difference]: Finished difference Result 10662 states and 14375 transitions. [2019-11-07 03:46:07,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-07 03:46:07,679 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 298 [2019-11-07 03:46:07,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:46:07,724 INFO L225 Difference]: With dead ends: 10662 [2019-11-07 03:46:07,724 INFO L226 Difference]: Without dead ends: 6338 [2019-11-07 03:46:07,747 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 615 GetRequests, 588 SyntacticMatches, 7 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2019-11-07 03:46:07,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6338 states. [2019-11-07 03:46:08,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6338 to 4924. [2019-11-07 03:46:08,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4924 states. [2019-11-07 03:46:08,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4924 states to 4924 states and 6632 transitions. [2019-11-07 03:46:08,101 INFO L78 Accepts]: Start accepts. Automaton has 4924 states and 6632 transitions. Word has length 298 [2019-11-07 03:46:08,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:46:08,101 INFO L462 AbstractCegarLoop]: Abstraction has 4924 states and 6632 transitions. [2019-11-07 03:46:08,102 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 03:46:08,102 INFO L276 IsEmpty]: Start isEmpty. Operand 4924 states and 6632 transitions. [2019-11-07 03:46:08,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2019-11-07 03:46:08,130 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:46:08,131 INFO L410 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] [2019-11-07 03:46:08,338 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 03:46:08,338 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:46:08,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:46:08,339 INFO L82 PathProgramCache]: Analyzing trace with hash 1378767101, now seen corresponding path program 1 times [2019-11-07 03:46:08,339 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:46:08,340 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375890572] [2019-11-07 03:46:08,340 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:46:08,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:46:08,704 INFO L134 CoverageAnalysis]: Checked inductivity of 1655 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 1647 trivial. 0 not checked. [2019-11-07 03:46:08,705 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375890572] [2019-11-07 03:46:08,705 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415557021] [2019-11-07 03:46:08,705 INFO L94 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 [2019-11-07 03:46:09,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:46:09,566 INFO L256 TraceCheckSpWp]: Trace formula consists of 2519 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-07 03:46:09,577 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 03:46:09,819 INFO L134 CoverageAnalysis]: Checked inductivity of 1655 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1647 trivial. 0 not checked. [2019-11-07 03:46:09,820 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 03:46:10,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1655 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1647 trivial. 0 not checked. [2019-11-07 03:46:10,340 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-07 03:46:10,340 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [10] total 15 [2019-11-07 03:46:10,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550952428] [2019-11-07 03:46:10,342 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 03:46:10,343 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:46:10,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 03:46:10,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2019-11-07 03:46:10,343 INFO L87 Difference]: Start difference. First operand 4924 states and 6632 transitions. Second operand 7 states. [2019-11-07 03:46:10,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:46:10,788 INFO L93 Difference]: Finished difference Result 10665 states and 14376 transitions. [2019-11-07 03:46:10,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-07 03:46:10,789 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 299 [2019-11-07 03:46:10,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:46:10,855 INFO L225 Difference]: With dead ends: 10665 [2019-11-07 03:46:10,855 INFO L226 Difference]: Without dead ends: 6340 [2019-11-07 03:46:10,878 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 617 GetRequests, 590 SyntacticMatches, 7 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2019-11-07 03:46:10,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6340 states. [2019-11-07 03:46:11,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6340 to 4925. [2019-11-07 03:46:11,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4925 states. [2019-11-07 03:46:11,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4925 states to 4925 states and 6631 transitions. [2019-11-07 03:46:11,289 INFO L78 Accepts]: Start accepts. Automaton has 4925 states and 6631 transitions. Word has length 299 [2019-11-07 03:46:11,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:46:11,290 INFO L462 AbstractCegarLoop]: Abstraction has 4925 states and 6631 transitions. [2019-11-07 03:46:11,290 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 03:46:11,290 INFO L276 IsEmpty]: Start isEmpty. Operand 4925 states and 6631 transitions. [2019-11-07 03:46:11,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2019-11-07 03:46:11,318 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:46:11,319 INFO L410 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] [2019-11-07 03:46:11,532 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 03:46:11,533 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:46:11,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:46:11,533 INFO L82 PathProgramCache]: Analyzing trace with hash 1802326449, now seen corresponding path program 1 times [2019-11-07 03:46:11,533 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:46:11,533 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653861069] [2019-11-07 03:46:11,534 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:46:11,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:46:11,832 INFO L134 CoverageAnalysis]: Checked inductivity of 1175 backedges. 21 proven. 9 refuted. 0 times theorem prover too weak. 1145 trivial. 0 not checked. [2019-11-07 03:46:11,833 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653861069] [2019-11-07 03:46:11,833 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1135571806] [2019-11-07 03:46:11,834 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2019-11-07 03:46:12,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:46:12,534 INFO L256 TraceCheckSpWp]: Trace formula consists of 2512 conjuncts, 16 conjunts are in the unsatisfiable core [2019-11-07 03:46:12,548 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 03:46:12,788 INFO L134 CoverageAnalysis]: Checked inductivity of 1175 backedges. 16 proven. 11 refuted. 0 times theorem prover too weak. 1148 trivial. 0 not checked. [2019-11-07 03:46:12,788 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 03:46:13,265 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:46:13,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1175 backedges. 22 proven. 5 refuted. 0 times theorem prover too weak. 1148 trivial. 0 not checked. [2019-11-07 03:46:13,572 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1351157686] [2019-11-07 03:46:13,606 INFO L159 IcfgInterpreter]: Started Sifa with 146 locations of interest [2019-11-07 03:46:13,606 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 03:46:13,613 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 03:46:13,620 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 03:46:13,621 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs