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 --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_synctty.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 00:32:09,059 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 00:32:09,061 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 00:32:09,073 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 00:32:09,074 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 00:32:09,075 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 00:32:09,077 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 00:32:09,080 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 00:32:09,084 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 00:32:09,090 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 00:32:09,091 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 00:32:09,094 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 00:32:09,094 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 00:32:09,095 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 00:32:09,096 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 00:32:09,101 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 00:32:09,102 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 00:32:09,105 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 00:32:09,106 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 00:32:09,109 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 00:32:09,111 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 00:32:09,115 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 00:32:09,116 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 00:32:09,116 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 00:32:09,119 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 00:32:09,120 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 00:32:09,120 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 00:32:09,122 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 00:32:09,123 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 00:32:09,126 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 00:32:09,126 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 00:32:09,127 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 00:32:09,128 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 00:32:09,128 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 00:32:09,132 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 00:32:09,133 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 00:32:09,133 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 00:32:09,134 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 00:32:09,134 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 00:32:09,136 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 00:32:09,138 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 00:32:09,139 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 00:32:09,163 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 00:32:09,163 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 00:32:09,165 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 00:32:09,165 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 00:32:09,166 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 00:32:09,166 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 00:32:09,166 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 00:32:09,166 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 00:32:09,166 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 00:32:09,167 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 00:32:09,168 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 00:32:09,168 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 00:32:09,168 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 00:32:09,169 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 00:32:09,169 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 00:32:09,169 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 00:32:09,169 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 00:32:09,169 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 00:32:09,170 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 00:32:09,170 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 00:32:09,170 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 00:32:09,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 00:32:09,171 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 00:32:09,171 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 00:32:09,171 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 00:32:09,171 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 00:32:09,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 00:32:09,172 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 00:32:09,172 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 00:32:09,438 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 00:32:09,449 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 00:32:09,453 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 00:32:09,454 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 00:32:09,454 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 00:32:09,455 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_synctty.ko-entry_point.cil.out.i [2019-10-15 00:32:09,512 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aaad43c1a/991e4080fd674854bd2135ac1a125967/FLAG8f58978d6 [2019-10-15 00:32:10,266 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 00:32:10,268 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_synctty.ko-entry_point.cil.out.i [2019-10-15 00:32:10,307 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aaad43c1a/991e4080fd674854bd2135ac1a125967/FLAG8f58978d6 [2019-10-15 00:32:10,343 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aaad43c1a/991e4080fd674854bd2135ac1a125967 [2019-10-15 00:32:10,351 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 00:32:10,352 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 00:32:10,353 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 00:32:10,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 00:32:10,356 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 00:32:10,357 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:32:10" (1/1) ... [2019-10-15 00:32:10,360 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3eb27b36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:32:10, skipping insertion in model container [2019-10-15 00:32:10,360 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:32:10" (1/1) ... [2019-10-15 00:32:10,367 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 00:32:10,493 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 00:32:12,410 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 00:32:12,440 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 00:32:12,688 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 00:32:12,938 INFO L192 MainTranslator]: Completed translation [2019-10-15 00:32:12,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:32:12 WrapperNode [2019-10-15 00:32:12,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 00:32:12,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 00:32:12,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 00:32:12,940 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 00:32:12,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:32:12" (1/1) ... [2019-10-15 00:32:12,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:32:12" (1/1) ... [2019-10-15 00:32:13,053 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:32:12" (1/1) ... [2019-10-15 00:32:13,054 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:32:12" (1/1) ... [2019-10-15 00:32:13,161 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:32:12" (1/1) ... [2019-10-15 00:32:13,177 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:32:12" (1/1) ... [2019-10-15 00:32:13,193 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:32:12" (1/1) ... [2019-10-15 00:32:13,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 00:32:13,229 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 00:32:13,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 00:32:13,229 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 00:32:13,235 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:32:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 00:32:13,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 00:32:13,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 00:32:13,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2019-10-15 00:32:13,342 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-10-15 00:32:13,342 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2019-10-15 00:32:13,344 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2019-10-15 00:32:13,344 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2019-10-15 00:32:13,344 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-10-15 00:32:13,345 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2019-10-15 00:32:13,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab16p [2019-10-15 00:32:13,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __be16_to_cpup [2019-10-15 00:32:13,347 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2019-10-15 00:32:13,348 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2019-10-15 00:32:13,350 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2019-10-15 00:32:13,350 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-15 00:32:13,351 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2019-10-15 00:32:13,356 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2019-10-15 00:32:13,357 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2019-10-15 00:32:13,357 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2019-10-15 00:32:13,357 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-15 00:32:13,358 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_trylock_bh [2019-10-15 00:32:13,358 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2019-10-15 00:32:13,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-15 00:32:13,358 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-15 00:32:13,358 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-15 00:32:13,358 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-10-15 00:32:13,358 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-15 00:32:13,359 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2019-10-15 00:32:13,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_head_init [2019-10-15 00:32:13,359 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2019-10-15 00:32:13,359 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2019-10-15 00:32:13,359 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2019-10-15 00:32:13,359 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2019-10-15 00:32:13,359 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2019-10-15 00:32:13,360 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2019-10-15 00:32:13,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-15 00:32:13,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-15 00:32:13,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-15 00:32:13,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-15 00:32:13,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-15 00:32:13,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-15 00:32:13,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-15 00:32:13,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-15 00:32:13,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-15 00:32:13,361 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_get_baud_rate [2019-10-15 00:32:13,361 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2019-10-15 00:32:13,361 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2019-10-15 00:32:13,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_print_buffer [2019-10-15 00:32:13,362 INFO L138 BoogieDeclarations]: Found implementation of procedure sp_get [2019-10-15 00:32:13,362 INFO L138 BoogieDeclarations]: Found implementation of procedure sp_put [2019-10-15 00:32:13,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_open [2019-10-15 00:32:13,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_close [2019-10-15 00:32:13,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_hangup [2019-10-15 00:32:13,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_read [2019-10-15 00:32:13,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_write [2019-10-15 00:32:13,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_synctty_ioctl [2019-10-15 00:32:13,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_poll [2019-10-15 00:32:13,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_receive [2019-10-15 00:32:13,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_wakeup [2019-10-15 00:32:13,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_init [2019-10-15 00:32:13,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_ioctl [2019-10-15 00:32:13,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_process [2019-10-15 00:32:13,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_txmunge [2019-10-15 00:32:13,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_send [2019-10-15 00:32:13,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_push [2019-10-15 00:32:13,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_flush_output [2019-10-15 00:32:13,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_input [2019-10-15 00:32:13,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_cleanup [2019-10-15 00:32:13,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_ppp_channel_ops_2 [2019-10-15 00:32:13,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_target_type_1 [2019-10-15 00:32:13,365 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 00:32:13,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2019-10-15 00:32:13,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2019-10-15 00:32:13,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2019-10-15 00:32:13,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2019-10-15 00:32:13,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2019-10-15 00:32:13,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_12 [2019-10-15 00:32:13,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_13 [2019-10-15 00:32:13,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_dequeue_14 [2019-10-15 00:32:13,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_15 [2019-10-15 00:32:13,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_16 [2019-10-15 00:32:13,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_17 [2019-10-15 00:32:13,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_18 [2019-10-15 00:32:13,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_19 [2019-10-15 00:32:13,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_20 [2019-10-15 00:32:13,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2019-10-15 00:32:13,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2019-10-15 00:32:13,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2019-10-15 00:32:13,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2019-10-15 00:32:13,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2019-10-15 00:32:13,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-15 00:32:13,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-15 00:32:13,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-15 00:32:13,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-15 00:32:13,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2019-10-15 00:32:13,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-15 00:32:13,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2019-10-15 00:32:13,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2019-10-15 00:32:13,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2019-10-15 00:32:13,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2019-10-15 00:32:13,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2019-10-15 00:32:13,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-15 00:32:13,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2019-10-15 00:32:13,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2019-10-15 00:32:13,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-15 00:32:13,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-15 00:32:13,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __tasklet_schedule [2019-10-15 00:32:13,372 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-10-15 00:32:13,372 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-15 00:32:13,373 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock [2019-10-15 00:32:13,373 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock [2019-10-15 00:32:13,373 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_bh [2019-10-15 00:32:13,373 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irq [2019-10-15 00:32:13,373 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-10-15 00:32:13,374 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_trylock_bh [2019-10-15 00:32:13,374 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_bh [2019-10-15 00:32:13,374 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irq [2019-10-15 00:32:13,375 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-15 00:32:13,375 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_irq [2019-10-15 00:32:13,375 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_irq [2019-10-15 00:32:13,375 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2019-10-15 00:32:13,376 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-10-15 00:32:13,376 INFO L138 BoogieDeclarations]: Found implementation of procedure n_tty_ioctl_helper [2019-10-15 00:32:13,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_index [2019-10-15 00:32:13,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_input [2019-10-15 00:32:13,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_input_error [2019-10-15 00:32:13,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_output_wakeup [2019-10-15 00:32:13,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_register_channel [2019-10-15 00:32:13,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unit_number [2019-10-15 00:32:13,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2019-10-15 00:32:13,379 INFO L138 BoogieDeclarations]: Found implementation of procedure print_hex_dump [2019-10-15 00:32:13,379 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-15 00:32:13,380 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2019-10-15 00:32:13,380 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2019-10-15 00:32:13,380 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-10-15 00:32:13,380 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2019-10-15 00:32:13,381 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2019-10-15 00:32:13,386 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2019-10-15 00:32:13,386 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2019-10-15 00:32:13,386 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2019-10-15 00:32:13,387 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_mode_ioctl [2019-10-15 00:32:13,387 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_register_ldisc [2019-10-15 00:32:13,388 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_termios_baud_rate [2019-10-15 00:32:13,389 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_ldisc [2019-10-15 00:32:13,397 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unthrottle [2019-10-15 00:32:13,398 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2019-10-15 00:32:13,398 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-15 00:32:13,399 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-15 00:32:13,399 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-15 00:32:13,400 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-15 00:32:13,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 00:32:13,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-15 00:32:13,400 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-10-15 00:32:13,401 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2019-10-15 00:32:13,401 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2019-10-15 00:32:13,401 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2019-10-15 00:32:13,401 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-10-15 00:32:13,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 00:32:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2019-10-15 00:32:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure __swab16p [2019-10-15 00:32:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure __be16_to_cpup [2019-10-15 00:32:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-15 00:32:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure print_hex_dump [2019-10-15 00:32:13,403 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-10-15 00:32:13,403 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-15 00:32:13,403 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2019-10-15 00:32:13,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 00:32:13,403 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2019-10-15 00:32:13,404 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2019-10-15 00:32:13,404 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-15 00:32:13,404 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_bh [2019-10-15 00:32:13,404 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2019-10-15 00:32:13,405 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-10-15 00:32:13,405 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_trylock_bh [2019-10-15 00:32:13,405 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_bh [2019-10-15 00:32:13,405 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2019-10-15 00:32:13,405 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-15 00:32:13,406 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock [2019-10-15 00:32:13,406 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_irq [2019-10-15 00:32:13,406 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock [2019-10-15 00:32:13,406 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_irq [2019-10-15 00:32:13,407 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-15 00:32:13,407 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2019-10-15 00:32:13,407 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2019-10-15 00:32:13,407 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2019-10-15 00:32:13,407 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2019-10-15 00:32:13,408 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-15 00:32:13,408 INFO L130 BoogieDeclarations]: Found specification of procedure spin_trylock_bh [2019-10-15 00:32:13,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 00:32:13,408 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-15 00:32:13,408 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2019-10-15 00:32:13,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 00:32:13,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 00:32:13,409 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2019-10-15 00:32:13,409 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2019-10-15 00:32:13,410 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-15 00:32:13,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-15 00:32:13,410 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-15 00:32:13,410 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-15 00:32:13,410 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-15 00:32:13,411 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-10-15 00:32:13,411 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-15 00:32:13,411 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2019-10-15 00:32:13,411 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2019-10-15 00:32:13,412 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-10-15 00:32:13,412 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-15 00:32:13,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2019-10-15 00:32:13,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2019-10-15 00:32:13,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2019-10-15 00:32:13,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2019-10-15 00:32:13,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_12 [2019-10-15 00:32:13,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_13 [2019-10-15 00:32:13,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_16 [2019-10-15 00:32:13,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_19 [2019-10-15 00:32:13,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_20 [2019-10-15 00:32:13,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2019-10-15 00:32:13,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_17 [2019-10-15 00:32:13,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_18 [2019-10-15 00:32:13,414 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2019-10-15 00:32:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 00:32:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_head_init [2019-10-15 00:32:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2019-10-15 00:32:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2019-10-15 00:32:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_dequeue_14 [2019-10-15 00:32:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2019-10-15 00:32:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-10-15 00:32:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2019-10-15 00:32:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2019-10-15 00:32:13,417 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2019-10-15 00:32:13,417 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2019-10-15 00:32:13,417 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2019-10-15 00:32:13,417 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2019-10-15 00:32:13,418 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2019-10-15 00:32:13,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_15 [2019-10-15 00:32:13,418 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2019-10-15 00:32:13,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-15 00:32:13,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2019-10-15 00:32:13,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2019-10-15 00:32:13,419 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 00:32:13,419 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 00:32:13,419 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 00:32:13,419 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_size_t [2019-10-15 00:32:13,420 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-15 00:32:13,420 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-15 00:32:13,420 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-15 00:32:13,420 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-15 00:32:13,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 00:32:13,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-15 00:32:13,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-15 00:32:13,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-15 00:32:13,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-15 00:32:13,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-15 00:32:13,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-15 00:32:13,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-15 00:32:13,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-15 00:32:13,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_ppp_channel_ops_2 [2019-10-15 00:32:13,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_target_type_1 [2019-10-15 00:32:13,423 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unthrottle [2019-10-15 00:32:13,423 INFO L130 BoogieDeclarations]: Found specification of procedure tty_termios_baud_rate [2019-10-15 00:32:13,423 INFO L130 BoogieDeclarations]: Found specification of procedure tty_get_baud_rate [2019-10-15 00:32:13,424 INFO L130 BoogieDeclarations]: Found specification of procedure tty_mode_ioctl [2019-10-15 00:32:13,424 INFO L130 BoogieDeclarations]: Found specification of procedure tty_register_ldisc [2019-10-15 00:32:13,424 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_ldisc [2019-10-15 00:32:13,425 INFO L130 BoogieDeclarations]: Found specification of procedure n_tty_ioctl_helper [2019-10-15 00:32:13,431 INFO L130 BoogieDeclarations]: Found specification of procedure __tasklet_schedule [2019-10-15 00:32:13,431 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2019-10-15 00:32:13,431 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2019-10-15 00:32:13,432 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2019-10-15 00:32:13,432 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_output_wakeup [2019-10-15 00:32:13,432 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_input [2019-10-15 00:32:13,432 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_input_error [2019-10-15 00:32:13,432 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_register_channel [2019-10-15 00:32:13,437 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2019-10-15 00:32:13,437 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_index [2019-10-15 00:32:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unit_number [2019-10-15 00:32:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2019-10-15 00:32:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_txmunge [2019-10-15 00:32:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_send [2019-10-15 00:32:13,439 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_ioctl [2019-10-15 00:32:13,439 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_process [2019-10-15 00:32:13,439 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_push [2019-10-15 00:32:13,439 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_flush_output [2019-10-15 00:32:13,440 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_input [2019-10-15 00:32:13,440 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_print_buffer [2019-10-15 00:32:13,440 INFO L130 BoogieDeclarations]: Found specification of procedure sp_get [2019-10-15 00:32:13,440 INFO L130 BoogieDeclarations]: Found specification of procedure sp_put [2019-10-15 00:32:13,440 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_open [2019-10-15 00:32:13,441 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_close [2019-10-15 00:32:13,441 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_hangup [2019-10-15 00:32:13,441 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_read [2019-10-15 00:32:13,441 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_write [2019-10-15 00:32:13,441 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_synctty_ioctl [2019-10-15 00:32:13,442 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_poll [2019-10-15 00:32:13,442 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_receive [2019-10-15 00:32:13,442 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_wakeup [2019-10-15 00:32:13,442 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_init [2019-10-15 00:32:13,442 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2019-10-15 00:32:13,443 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_cleanup [2019-10-15 00:32:13,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-15 00:32:13,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-15 00:32:13,443 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 00:32:13,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2019-10-15 00:32:13,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2019-10-15 00:32:13,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2019-10-15 00:32:13,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2019-10-15 00:32:13,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2019-10-15 00:32:13,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-15 00:32:13,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-15 00:32:13,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-15 00:32:13,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-15 00:32:13,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2019-10-15 00:32:13,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2019-10-15 00:32:13,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2019-10-15 00:32:13,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2019-10-15 00:32:13,445 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-15 00:32:13,445 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 00:32:13,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 00:32:13,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-15 00:32:13,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 00:32:13,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 00:32:13,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-15 00:32:13,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-15 00:32:13,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-15 00:32:13,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-15 00:32:14,369 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-15 00:32:18,303 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 00:32:18,303 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 00:32:18,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:32:18 BoogieIcfgContainer [2019-10-15 00:32:18,305 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 00:32:18,307 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 00:32:18,307 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 00:32:18,310 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 00:32:18,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 12:32:10" (1/3) ... [2019-10-15 00:32:18,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11d0810f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:32:18, skipping insertion in model container [2019-10-15 00:32:18,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:32:12" (2/3) ... [2019-10-15 00:32:18,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11d0810f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:32:18, skipping insertion in model container [2019-10-15 00:32:18,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:32:18" (3/3) ... [2019-10-15 00:32:18,315 INFO L109 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_synctty.ko-entry_point.cil.out.i [2019-10-15 00:32:18,324 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 00:32:18,335 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 00:32:18,346 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 00:32:18,383 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 00:32:18,383 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 00:32:18,383 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 00:32:18,383 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 00:32:18,383 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 00:32:18,384 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 00:32:18,384 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 00:32:18,384 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 00:32:18,430 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states. [2019-10-15 00:32:18,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-10-15 00:32:18,446 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:32:18,447 INFO L380 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:32:18,449 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:32:18,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:32:18,454 INFO L82 PathProgramCache]: Analyzing trace with hash -99284797, now seen corresponding path program 1 times [2019-10-15 00:32:18,463 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:32:18,464 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661902539] [2019-10-15 00:32:18,464 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:32:18,464 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:32:18,464 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:32:18,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:32:18,987 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2019-10-15 00:32:18,988 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661902539] [2019-10-15 00:32:18,989 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:32:18,989 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:32:18,990 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470200941] [2019-10-15 00:32:18,996 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:32:18,999 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:32:19,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:32:19,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:32:19,017 INFO L87 Difference]: Start difference. First operand 995 states. Second operand 3 states. [2019-10-15 00:32:19,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:32:19,296 INFO L93 Difference]: Finished difference Result 2699 states and 3524 transitions. [2019-10-15 00:32:19,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:32:19,298 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 101 [2019-10-15 00:32:19,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:32:19,336 INFO L225 Difference]: With dead ends: 2699 [2019-10-15 00:32:19,336 INFO L226 Difference]: Without dead ends: 1774 [2019-10-15 00:32:19,347 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:32:19,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1774 states. [2019-10-15 00:32:19,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1774 to 1774. [2019-10-15 00:32:19,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1774 states. [2019-10-15 00:32:19,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1774 states to 1774 states and 2259 transitions. [2019-10-15 00:32:19,544 INFO L78 Accepts]: Start accepts. Automaton has 1774 states and 2259 transitions. Word has length 101 [2019-10-15 00:32:19,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:32:19,545 INFO L462 AbstractCegarLoop]: Abstraction has 1774 states and 2259 transitions. [2019-10-15 00:32:19,545 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:32:19,546 INFO L276 IsEmpty]: Start isEmpty. Operand 1774 states and 2259 transitions. [2019-10-15 00:32:19,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2019-10-15 00:32:19,553 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:32:19,554 INFO L380 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:32:19,554 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:32:19,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:32:19,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1734399447, now seen corresponding path program 1 times [2019-10-15 00:32:19,555 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:32:19,555 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546623617] [2019-10-15 00:32:19,555 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:32:19,556 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:32:19,556 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:32:19,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:32:19,837 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2019-10-15 00:32:19,838 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546623617] [2019-10-15 00:32:19,838 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:32:19,838 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 00:32:19,839 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999197334] [2019-10-15 00:32:19,840 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 00:32:19,841 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:32:19,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 00:32:19,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 00:32:19,841 INFO L87 Difference]: Start difference. First operand 1774 states and 2259 transitions. Second operand 6 states. [2019-10-15 00:32:20,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:32:20,050 INFO L93 Difference]: Finished difference Result 3530 states and 4490 transitions. [2019-10-15 00:32:20,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 00:32:20,051 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 105 [2019-10-15 00:32:20,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:32:20,068 INFO L225 Difference]: With dead ends: 3530 [2019-10-15 00:32:20,068 INFO L226 Difference]: Without dead ends: 1790 [2019-10-15 00:32:20,075 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2019-10-15 00:32:20,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1790 states. [2019-10-15 00:32:20,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1790 to 1779. [2019-10-15 00:32:20,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1779 states. [2019-10-15 00:32:20,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1779 states to 1779 states and 2263 transitions. [2019-10-15 00:32:20,172 INFO L78 Accepts]: Start accepts. Automaton has 1779 states and 2263 transitions. Word has length 105 [2019-10-15 00:32:20,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:32:20,173 INFO L462 AbstractCegarLoop]: Abstraction has 1779 states and 2263 transitions. [2019-10-15 00:32:20,173 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 00:32:20,173 INFO L276 IsEmpty]: Start isEmpty. Operand 1779 states and 2263 transitions. [2019-10-15 00:32:20,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2019-10-15 00:32:20,178 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:32:20,178 INFO L380 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:32:20,179 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:32:20,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:32:20,179 INFO L82 PathProgramCache]: Analyzing trace with hash -972219947, now seen corresponding path program 1 times [2019-10-15 00:32:20,180 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:32:20,181 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109418356] [2019-10-15 00:32:20,181 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:32:20,181 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:32:20,181 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:32:20,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:32:20,424 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2019-10-15 00:32:20,425 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109418356] [2019-10-15 00:32:20,425 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:32:20,425 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 00:32:20,425 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046262739] [2019-10-15 00:32:20,427 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 00:32:20,427 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:32:20,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 00:32:20,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 00:32:20,428 INFO L87 Difference]: Start difference. First operand 1779 states and 2263 transitions. Second operand 6 states. [2019-10-15 00:32:21,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:32:21,727 INFO L93 Difference]: Finished difference Result 5274 states and 6785 transitions. [2019-10-15 00:32:21,728 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 00:32:21,728 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 105 [2019-10-15 00:32:21,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:32:21,751 INFO L225 Difference]: With dead ends: 5274 [2019-10-15 00:32:21,752 INFO L226 Difference]: Without dead ends: 3510 [2019-10-15 00:32:21,759 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-15 00:32:21,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3510 states. [2019-10-15 00:32:21,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3510 to 3510. [2019-10-15 00:32:21,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3510 states. [2019-10-15 00:32:21,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3510 states to 3510 states and 4524 transitions. [2019-10-15 00:32:21,907 INFO L78 Accepts]: Start accepts. Automaton has 3510 states and 4524 transitions. Word has length 105 [2019-10-15 00:32:21,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:32:21,908 INFO L462 AbstractCegarLoop]: Abstraction has 3510 states and 4524 transitions. [2019-10-15 00:32:21,908 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 00:32:21,908 INFO L276 IsEmpty]: Start isEmpty. Operand 3510 states and 4524 transitions. [2019-10-15 00:32:21,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2019-10-15 00:32:21,919 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:32:21,919 INFO L380 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:32:21,919 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:32:21,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:32:21,920 INFO L82 PathProgramCache]: Analyzing trace with hash -289884447, now seen corresponding path program 1 times [2019-10-15 00:32:21,920 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:32:21,920 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714985219] [2019-10-15 00:32:21,920 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:32:21,920 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:32:21,921 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:32:21,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:32:22,028 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2019-10-15 00:32:22,028 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714985219] [2019-10-15 00:32:22,029 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:32:22,029 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:32:22,029 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007022982] [2019-10-15 00:32:22,030 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:32:22,030 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:32:22,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:32:22,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:32:22,031 INFO L87 Difference]: Start difference. First operand 3510 states and 4524 transitions. Second operand 3 states. [2019-10-15 00:32:22,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:32:22,280 INFO L93 Difference]: Finished difference Result 8756 states and 11294 transitions. [2019-10-15 00:32:22,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:32:22,281 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 171 [2019-10-15 00:32:22,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:32:22,395 INFO L225 Difference]: With dead ends: 8756 [2019-10-15 00:32:22,395 INFO L226 Difference]: Without dead ends: 5280 [2019-10-15 00:32:22,408 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:32:22,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5280 states. [2019-10-15 00:32:22,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5280 to 5256. [2019-10-15 00:32:22,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5256 states. [2019-10-15 00:32:22,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5256 states to 5256 states and 6786 transitions. [2019-10-15 00:32:22,631 INFO L78 Accepts]: Start accepts. Automaton has 5256 states and 6786 transitions. Word has length 171 [2019-10-15 00:32:22,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:32:22,631 INFO L462 AbstractCegarLoop]: Abstraction has 5256 states and 6786 transitions. [2019-10-15 00:32:22,632 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:32:22,632 INFO L276 IsEmpty]: Start isEmpty. Operand 5256 states and 6786 transitions. [2019-10-15 00:32:22,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-10-15 00:32:22,644 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:32:22,644 INFO L380 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:32:22,644 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:32:22,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:32:22,645 INFO L82 PathProgramCache]: Analyzing trace with hash -465691413, now seen corresponding path program 1 times [2019-10-15 00:32:22,645 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:32:22,645 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016040432] [2019-10-15 00:32:22,645 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:32:22,645 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:32:22,645 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:32:22,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:32:22,770 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2019-10-15 00:32:22,770 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016040432] [2019-10-15 00:32:22,771 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:32:22,771 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:32:22,771 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483689146] [2019-10-15 00:32:22,772 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:32:22,772 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:32:22,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:32:22,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:32:22,772 INFO L87 Difference]: Start difference. First operand 5256 states and 6786 transitions. Second operand 3 states. [2019-10-15 00:32:23,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:32:23,012 INFO L93 Difference]: Finished difference Result 12829 states and 16443 transitions. [2019-10-15 00:32:23,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:32:23,013 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2019-10-15 00:32:23,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:32:23,057 INFO L225 Difference]: With dead ends: 12829 [2019-10-15 00:32:23,057 INFO L226 Difference]: Without dead ends: 7607 [2019-10-15 00:32:23,079 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:32:23,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7607 states. [2019-10-15 00:32:23,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7607 to 7577. [2019-10-15 00:32:23,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7577 states. [2019-10-15 00:32:23,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7577 states to 7577 states and 9663 transitions. [2019-10-15 00:32:23,517 INFO L78 Accepts]: Start accepts. Automaton has 7577 states and 9663 transitions. Word has length 194 [2019-10-15 00:32:23,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:32:23,518 INFO L462 AbstractCegarLoop]: Abstraction has 7577 states and 9663 transitions. [2019-10-15 00:32:23,518 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:32:23,518 INFO L276 IsEmpty]: Start isEmpty. Operand 7577 states and 9663 transitions. [2019-10-15 00:32:23,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-10-15 00:32:23,539 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:32:23,540 INFO L380 BasicCegarLoop]: trace histogram [12, 12, 12, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:32:23,540 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:32:23,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:32:23,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1099759055, now seen corresponding path program 1 times [2019-10-15 00:32:23,541 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:32:23,541 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024950957] [2019-10-15 00:32:23,542 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:32:23,542 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:32:23,542 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:32:23,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:32:23,718 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2019-10-15 00:32:23,718 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024950957] [2019-10-15 00:32:23,718 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:32:23,719 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:32:23,719 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146896226] [2019-10-15 00:32:23,720 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:32:23,720 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:32:23,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:32:23,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:32:23,721 INFO L87 Difference]: Start difference. First operand 7577 states and 9663 transitions. Second operand 3 states. [2019-10-15 00:32:24,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:32:24,137 INFO L93 Difference]: Finished difference Result 18659 states and 23847 transitions. [2019-10-15 00:32:24,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:32:24,138 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 209 [2019-10-15 00:32:24,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:32:24,199 INFO L225 Difference]: With dead ends: 18659 [2019-10-15 00:32:24,199 INFO L226 Difference]: Without dead ends: 11125 [2019-10-15 00:32:24,226 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:32:24,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11125 states. [2019-10-15 00:32:24,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11125 to 11101. [2019-10-15 00:32:24,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11101 states. [2019-10-15 00:32:24,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11101 states to 11101 states and 14109 transitions. [2019-10-15 00:32:24,760 INFO L78 Accepts]: Start accepts. Automaton has 11101 states and 14109 transitions. Word has length 209 [2019-10-15 00:32:24,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:32:24,761 INFO L462 AbstractCegarLoop]: Abstraction has 11101 states and 14109 transitions. [2019-10-15 00:32:24,761 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:32:24,761 INFO L276 IsEmpty]: Start isEmpty. Operand 11101 states and 14109 transitions. [2019-10-15 00:32:24,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2019-10-15 00:32:24,787 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:32:24,788 INFO L380 BasicCegarLoop]: trace histogram [12, 12, 12, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:32:24,788 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:32:24,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:32:24,789 INFO L82 PathProgramCache]: Analyzing trace with hash -1881653909, now seen corresponding path program 1 times [2019-10-15 00:32:24,789 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:32:24,789 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813898538] [2019-10-15 00:32:24,790 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:32:24,790 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:32:24,790 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:32:24,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:32:25,007 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2019-10-15 00:32:25,008 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813898538] [2019-10-15 00:32:25,008 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:32:25,008 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:32:25,008 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262613844] [2019-10-15 00:32:25,009 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:32:25,009 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:32:25,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:32:25,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:32:25,010 INFO L87 Difference]: Start difference. First operand 11101 states and 14109 transitions. Second operand 3 states. [2019-10-15 00:32:25,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:32:25,237 INFO L93 Difference]: Finished difference Result 16739 states and 21487 transitions. [2019-10-15 00:32:25,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:32:25,237 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2019-10-15 00:32:25,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:32:25,282 INFO L225 Difference]: With dead ends: 16739 [2019-10-15 00:32:25,282 INFO L226 Difference]: Without dead ends: 11141 [2019-10-15 00:32:25,391 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:32:25,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11141 states. [2019-10-15 00:32:25,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11141 to 11121. [2019-10-15 00:32:25,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11121 states. [2019-10-15 00:32:25,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11121 states to 11121 states and 14129 transitions. [2019-10-15 00:32:25,766 INFO L78 Accepts]: Start accepts. Automaton has 11121 states and 14129 transitions. Word has length 214 [2019-10-15 00:32:25,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:32:25,768 INFO L462 AbstractCegarLoop]: Abstraction has 11121 states and 14129 transitions. [2019-10-15 00:32:25,768 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:32:25,769 INFO L276 IsEmpty]: Start isEmpty. Operand 11121 states and 14129 transitions. [2019-10-15 00:32:25,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2019-10-15 00:32:25,792 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:32:25,792 INFO L380 BasicCegarLoop]: trace histogram [12, 12, 12, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:32:25,792 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:32:25,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:32:25,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1957458250, now seen corresponding path program 1 times [2019-10-15 00:32:25,793 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:32:25,793 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441191888] [2019-10-15 00:32:25,793 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:32:25,793 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:32:25,793 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:32:25,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:32:26,162 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2019-10-15 00:32:26,162 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441191888] [2019-10-15 00:32:26,162 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:32:26,162 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 00:32:26,163 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185878765] [2019-10-15 00:32:26,163 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 00:32:26,163 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:32:26,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 00:32:26,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2019-10-15 00:32:26,164 INFO L87 Difference]: Start difference. First operand 11121 states and 14129 transitions. Second operand 9 states. [2019-10-15 00:32:45,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:32:45,966 INFO L93 Difference]: Finished difference Result 25829 states and 33255 transitions. [2019-10-15 00:32:45,966 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 00:32:45,967 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 216 [2019-10-15 00:32:45,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:32:46,040 INFO L225 Difference]: With dead ends: 25829 [2019-10-15 00:32:46,040 INFO L226 Difference]: Without dead ends: 14751 [2019-10-15 00:32:46,080 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2019-10-15 00:32:46,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14751 states. [2019-10-15 00:32:46,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14751 to 14211. [2019-10-15 00:32:46,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14211 states. [2019-10-15 00:32:46,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14211 states to 14211 states and 18163 transitions. [2019-10-15 00:32:46,751 INFO L78 Accepts]: Start accepts. Automaton has 14211 states and 18163 transitions. Word has length 216 [2019-10-15 00:32:46,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:32:46,754 INFO L462 AbstractCegarLoop]: Abstraction has 14211 states and 18163 transitions. [2019-10-15 00:32:46,754 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 00:32:46,754 INFO L276 IsEmpty]: Start isEmpty. Operand 14211 states and 18163 transitions. [2019-10-15 00:32:46,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2019-10-15 00:32:46,793 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:32:46,794 INFO L380 BasicCegarLoop]: trace histogram [14, 14, 14, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:32:46,794 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:32:46,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:32:46,794 INFO L82 PathProgramCache]: Analyzing trace with hash -769592882, now seen corresponding path program 1 times [2019-10-15 00:32:46,795 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:32:46,795 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656370003] [2019-10-15 00:32:46,795 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:32:46,795 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:32:46,795 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:32:46,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat