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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 11:34:32,093 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 11:34:32,095 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 11:34:32,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 11:34:32,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 11:34:32,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 11:34:32,110 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 11:34:32,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 11:34:32,113 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 11:34:32,114 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 11:34:32,115 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 11:34:32,116 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 11:34:32,117 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 11:34:32,118 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 11:34:32,118 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 11:34:32,119 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 11:34:32,120 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 11:34:32,121 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 11:34:32,123 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 11:34:32,125 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 11:34:32,127 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 11:34:32,128 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 11:34:32,129 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 11:34:32,130 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 11:34:32,132 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 11:34:32,133 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 11:34:32,133 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 11:34:32,134 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 11:34:32,134 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 11:34:32,135 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 11:34:32,136 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 11:34:32,137 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 11:34:32,137 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 11:34:32,138 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 11:34:32,139 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 11:34:32,140 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 11:34:32,140 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 11:34:32,141 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 11:34:32,141 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 11:34:32,142 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 11:34:32,143 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 11:34:32,143 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 11:34:32,159 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 11:34:32,159 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 11:34:32,160 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 11:34:32,160 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 11:34:32,160 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 11:34:32,161 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 11:34:32,161 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 11:34:32,161 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 11:34:32,161 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 11:34:32,161 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 11:34:32,163 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 11:34:32,164 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 11:34:32,164 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 11:34:32,164 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 11:34:32,164 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 11:34:32,164 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 11:34:32,165 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 11:34:32,165 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 11:34:32,165 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 11:34:32,165 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 11:34:32,166 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 11:34:32,166 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 11:34:32,166 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 11:34:32,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 11:34:32,166 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 11:34:32,167 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 11:34:32,167 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 11:34:32,167 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 11:34:32,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 11:34:32,167 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 11:34:32,218 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 11:34:32,231 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 11:34:32,234 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 11:34:32,235 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 11:34:32,236 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 11:34:32,236 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-09-10 11:34:32,298 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65679c675/68acb2e2c8f74f96a93eef0726336c87/FLAG8159864d0 [2019-09-10 11:34:33,041 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 11:34:33,042 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-09-10 11:34:33,089 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65679c675/68acb2e2c8f74f96a93eef0726336c87/FLAG8159864d0 [2019-09-10 11:34:33,114 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65679c675/68acb2e2c8f74f96a93eef0726336c87 [2019-09-10 11:34:33,127 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 11:34:33,129 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 11:34:33,134 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 11:34:33,135 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 11:34:33,138 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 11:34:33,140 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 11:34:33" (1/1) ... [2019-09-10 11:34:33,143 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@705c4b68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:34:33, skipping insertion in model container [2019-09-10 11:34:33,143 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 11:34:33" (1/1) ... [2019-09-10 11:34:33,151 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 11:34:33,259 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 11:34:34,555 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 11:34:34,582 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 11:34:34,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 11:34:35,036 INFO L192 MainTranslator]: Completed translation [2019-09-10 11:34:35,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:34:35 WrapperNode [2019-09-10 11:34:35,037 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 11:34:35,038 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 11:34:35,038 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 11:34:35,038 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 11:34:35,053 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:34:35" (1/1) ... [2019-09-10 11:34:35,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:34:35" (1/1) ... [2019-09-10 11:34:35,127 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:34:35" (1/1) ... [2019-09-10 11:34:35,128 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:34:35" (1/1) ... [2019-09-10 11:34:35,236 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:34:35" (1/1) ... [2019-09-10 11:34:35,247 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:34:35" (1/1) ... [2019-09-10 11:34:35,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:34:35" (1/1) ... [2019-09-10 11:34:35,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 11:34:35,284 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 11:34:35,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 11:34:35,284 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 11:34:35,286 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:34:35" (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 [2019-09-10 11:34:35,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 11:34:35,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 11:34:35,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2019-09-10 11:34:35,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2019-09-10 11:34:35,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-09-10 11:34:35,385 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-09-10 11:34:35,385 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-09-10 11:34:35,386 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2019-09-10 11:34:35,386 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2019-09-10 11:34:35,386 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-09-10 11:34:35,387 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-09-10 11:34:35,387 INFO L138 BoogieDeclarations]: Found implementation of procedure get_capacity [2019-09-10 11:34:35,388 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2019-09-10 11:34:35,389 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-09-10 11:34:35,389 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_create_kmalloc_pool [2019-09-10 11:34:35,390 INFO L138 BoogieDeclarations]: Found implementation of procedure req_get_ioprio [2019-09-10 11:34:35,390 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_pos [2019-09-10 11:34:35,390 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_logical_block_size [2019-09-10 11:34:35,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-09-10 11:34:35,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-09-10 11:34:35,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-09-10 11:34:35,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-09-10 11:34:35,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-09-10 11:34:35,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-09-10 11:34:35,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-09-10 11:34:35,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-09-10 11:34:35,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-09-10 11:34:35,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-09-10 11:34:35,394 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-09-10 11:34:35,394 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_assign_page [2019-09-10 11:34:35,394 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_page [2019-09-10 11:34:35,395 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_buf [2019-09-10 11:34:35,395 INFO L138 BoogieDeclarations]: Found implementation of procedure virtqueue_add_buf [2019-09-10 11:34:35,395 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_has_feature [2019-09-10 11:34:35,396 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_config_buf [2019-09-10 11:34:35,396 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_find_single_vq [2019-09-10 11:34:35,396 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_done [2019-09-10 11:34:35,396 INFO L138 BoogieDeclarations]: Found implementation of procedure do_req [2019-09-10 11:34:35,396 INFO L138 BoogieDeclarations]: Found implementation of procedure do_virtblk_request [2019-09-10 11:34:35,396 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_prepare_flush [2019-09-10 11:34:35,397 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_get_id [2019-09-10 11:34:35,397 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_ioctl [2019-09-10 11:34:35,397 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_getgeo [2019-09-10 11:34:35,397 INFO L138 BoogieDeclarations]: Found implementation of procedure index_to_minor [2019-09-10 11:34:35,397 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_probe [2019-09-10 11:34:35,398 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_remove [2019-09-10 11:34:35,398 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2019-09-10 11:34:35,398 INFO L138 BoogieDeclarations]: Found implementation of procedure fini [2019-09-10 11:34:35,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_virtio_driver_1 [2019-09-10 11:34:35,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_block_device_operations_2 [2019-09-10 11:34:35,398 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 11:34:35,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2019-09-10 11:34:35,399 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-09-10 11:34:35,399 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-09-10 11:34:35,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blk_make_request_5 [2019-09-10 11:34:35,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-09-10 11:34:35,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-09-10 11:34:35,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-09-10 11:34:35,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-09-10 11:34:35,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-09-10 11:34:35,403 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR___0 [2019-09-10 11:34:35,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blk_get_request [2019-09-10 11:34:35,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blk_make_request [2019-09-10 11:34:35,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_blk_rq [2019-09-10 11:34:35,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-10 11:34:35,405 INFO L138 BoogieDeclarations]: Found implementation of procedure __blk_end_request_all [2019-09-10 11:34:35,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-09-10 11:34:35,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2019-09-10 11:34:35,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-09-10 11:34:35,406 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-09-10 11:34:35,406 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-09-10 11:34:35,407 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-09-10 11:34:35,407 INFO L138 BoogieDeclarations]: Found implementation of procedure add_disk [2019-09-10 11:34:35,408 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_disk [2019-09-10 11:34:35,408 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_map_kern [2019-09-10 11:34:35,408 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_put [2019-09-10 11:34:35,409 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2019-09-10 11:34:35,409 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_execute_rq [2019-09-10 11:34:35,409 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_init_queue [2019-09-10 11:34:35,410 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_peek_request [2019-09-10 11:34:35,410 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_alignment_offset [2019-09-10 11:34:35,410 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_bounce_limit [2019-09-10 11:34:35,410 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_io_min [2019-09-10 11:34:35,411 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_io_opt [2019-09-10 11:34:35,411 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_logical_block_size [2019-09-10 11:34:35,412 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_hw_sectors [2019-09-10 11:34:35,412 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segment_size [2019-09-10 11:34:35,413 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segments [2019-09-10 11:34:35,413 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_ordered [2019-09-10 11:34:35,413 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_physical_block_size [2019-09-10 11:34:35,414 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_map_sg [2019-09-10 11:34:35,414 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_start_queue [2019-09-10 11:34:35,414 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_start_request [2019-09-10 11:34:35,414 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_stop_queue [2019-09-10 11:34:35,414 INFO L138 BoogieDeclarations]: Found implementation of procedure del_gendisk [2019-09-10 11:34:35,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-10 11:34:35,415 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-09-10 11:34:35,415 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_alloc [2019-09-10 11:34:35,415 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_create [2019-09-10 11:34:35,416 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_destroy [2019-09-10 11:34:35,416 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_free [2019-09-10 11:34:35,416 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-09-10 11:34:35,416 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2019-09-10 11:34:35,416 INFO L138 BoogieDeclarations]: Found implementation of procedure register_blkdev [2019-09-10 11:34:35,416 INFO L138 BoogieDeclarations]: Found implementation of procedure register_virtio_driver [2019-09-10 11:34:35,417 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_cmd_ioctl [2019-09-10 11:34:35,417 INFO L138 BoogieDeclarations]: Found implementation of procedure set_disk_ro [2019-09-10 11:34:35,417 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_init_table [2019-09-10 11:34:35,491 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2019-09-10 11:34:35,491 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_virtio_driver [2019-09-10 11:34:35,492 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_check_driver_offered_feature [2019-09-10 11:34:35,492 INFO L138 BoogieDeclarations]: Found implementation of procedure virtqueue_add_buf_gfp [2019-09-10 11:34:35,492 INFO L138 BoogieDeclarations]: Found implementation of procedure virtqueue_get_buf [2019-09-10 11:34:35,492 INFO L138 BoogieDeclarations]: Found implementation of procedure virtqueue_kick [2019-09-10 11:34:35,492 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-10 11:34:35,492 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-10 11:34:35,493 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-09-10 11:34:35,493 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-09-10 11:34:35,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 11:34:35,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-09-10 11:34:35,495 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-09-10 11:34:35,496 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-09-10 11:34:35,496 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-09-10 11:34:35,496 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2019-09-10 11:34:35,496 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-09-10 11:34:35,496 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2019-09-10 11:34:35,496 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-09-10 11:34:35,496 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-09-10 11:34:35,497 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-09-10 11:34:35,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 11:34:35,497 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-09-10 11:34:35,497 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2019-09-10 11:34:35,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 11:34:35,497 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-09-10 11:34:35,497 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2019-09-10 11:34:35,498 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-09-10 11:34:35,498 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-09-10 11:34:35,498 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-09-10 11:34:35,498 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-09-10 11:34:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-09-10 11:34:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure register_blkdev [2019-09-10 11:34:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2019-09-10 11:34:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure add_disk [2019-09-10 11:34:35,501 INFO L130 BoogieDeclarations]: Found specification of procedure del_gendisk [2019-09-10 11:34:35,501 INFO L130 BoogieDeclarations]: Found specification of procedure set_disk_ro [2019-09-10 11:34:35,501 INFO L130 BoogieDeclarations]: Found specification of procedure get_capacity [2019-09-10 11:34:35,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 11:34:35,503 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2019-09-10 11:34:35,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 11:34:35,503 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_disk [2019-09-10 11:34:35,503 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2019-09-10 11:34:35,503 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-09-10 11:34:35,504 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-09-10 11:34:35,504 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_create [2019-09-10 11:34:35,504 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_destroy [2019-09-10 11:34:35,504 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_alloc [2019-09-10 11:34:35,504 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free [2019-09-10 11:34:35,504 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_kmalloc [2019-09-10 11:34:35,505 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_kfree [2019-09-10 11:34:35,505 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_create_kmalloc_pool [2019-09-10 11:34:35,505 INFO L130 BoogieDeclarations]: Found specification of procedure bio_put [2019-09-10 11:34:35,505 INFO L130 BoogieDeclarations]: Found specification of procedure bio_map_kern [2019-09-10 11:34:35,505 INFO L130 BoogieDeclarations]: Found specification of procedure req_get_ioprio [2019-09-10 11:34:35,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blk_make_request_5 [2019-09-10 11:34:35,505 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_cmd_ioctl [2019-09-10 11:34:35,506 INFO L130 BoogieDeclarations]: Found specification of procedure blk_start_queue [2019-09-10 11:34:35,506 INFO L130 BoogieDeclarations]: Found specification of procedure blk_stop_queue [2019-09-10 11:34:35,506 INFO L130 BoogieDeclarations]: Found specification of procedure blk_execute_rq [2019-09-10 11:34:35,506 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_pos [2019-09-10 11:34:35,506 INFO L130 BoogieDeclarations]: Found specification of procedure blk_peek_request [2019-09-10 11:34:35,506 INFO L130 BoogieDeclarations]: Found specification of procedure blk_start_request [2019-09-10 11:34:35,506 INFO L130 BoogieDeclarations]: Found specification of procedure __blk_end_request_all [2019-09-10 11:34:35,506 INFO L130 BoogieDeclarations]: Found specification of procedure blk_init_queue [2019-09-10 11:34:35,507 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2019-09-10 11:34:35,507 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_bounce_limit [2019-09-10 11:34:35,507 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_hw_sectors [2019-09-10 11:34:35,507 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segments [2019-09-10 11:34:35,508 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segment_size [2019-09-10 11:34:35,508 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_logical_block_size [2019-09-10 11:34:35,508 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_physical_block_size [2019-09-10 11:34:35,508 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_alignment_offset [2019-09-10 11:34:35,508 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_io_min [2019-09-10 11:34:35,509 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_io_opt [2019-09-10 11:34:35,509 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_ordered [2019-09-10 11:34:35,509 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_map_sg [2019-09-10 11:34:35,510 INFO L130 BoogieDeclarations]: Found specification of procedure queue_logical_block_size [2019-09-10 11:34:35,510 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 11:34:35,510 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-10 11:34:35,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 11:34:35,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-09-10 11:34:35,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-10 11:34:35,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-10 11:34:35,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 11:34:35,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-09-10 11:34:35,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 11:34:35,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-09-10 11:34:35,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-09-10 11:34:35,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-09-10 11:34:35,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-09-10 11:34:35,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-09-10 11:34:35,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-09-10 11:34:35,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-09-10 11:34:35,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-09-10 11:34:35,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-09-10 11:34:35,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blk_make_request [2019-09-10 11:34:35,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-09-10 11:34:35,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-09-10 11:34:35,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-09-10 11:34:35,513 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-10 11:34:35,513 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-09-10 11:34:35,513 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-09-10 11:34:35,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_virtio_driver_1 [2019-09-10 11:34:35,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_block_device_operations_2 [2019-09-10 11:34:35,514 INFO L130 BoogieDeclarations]: Found specification of procedure sg_assign_page [2019-09-10 11:34:35,514 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_page [2019-09-10 11:34:35,514 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_buf [2019-09-10 11:34:35,514 INFO L130 BoogieDeclarations]: Found specification of procedure sg_init_table [2019-09-10 11:34:35,514 INFO L130 BoogieDeclarations]: Found specification of procedure virtqueue_add_buf_gfp [2019-09-10 11:34:35,514 INFO L130 BoogieDeclarations]: Found specification of procedure virtqueue_add_buf [2019-09-10 11:34:35,514 INFO L130 BoogieDeclarations]: Found specification of procedure virtqueue_kick [2019-09-10 11:34:35,514 INFO L130 BoogieDeclarations]: Found specification of procedure virtqueue_get_buf [2019-09-10 11:34:35,515 INFO L130 BoogieDeclarations]: Found specification of procedure register_virtio_driver [2019-09-10 11:34:35,515 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_virtio_driver [2019-09-10 11:34:35,515 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_check_driver_offered_feature [2019-09-10 11:34:35,515 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_has_feature [2019-09-10 11:34:35,515 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_config_buf [2019-09-10 11:34:35,515 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2019-09-10 11:34:35,515 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_find_single_vq [2019-09-10 11:34:35,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 11:34:35,516 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2019-09-10 11:34:35,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 11:34:35,516 INFO L130 BoogieDeclarations]: Found specification of procedure blk_done [2019-09-10 11:34:35,516 INFO L130 BoogieDeclarations]: Found specification of procedure do_req [2019-09-10 11:34:35,516 INFO L130 BoogieDeclarations]: Found specification of procedure do_virtblk_request [2019-09-10 11:34:35,516 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_prepare_flush [2019-09-10 11:34:35,517 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_get_id [2019-09-10 11:34:35,517 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_ioctl [2019-09-10 11:34:35,517 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_getgeo [2019-09-10 11:34:35,517 INFO L130 BoogieDeclarations]: Found specification of procedure index_to_minor [2019-09-10 11:34:35,517 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_probe [2019-09-10 11:34:35,517 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-09-10 11:34:35,517 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_remove [2019-09-10 11:34:35,517 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-09-10 11:34:35,518 INFO L130 BoogieDeclarations]: Found specification of procedure fini [2019-09-10 11:34:35,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-10 11:34:35,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-10 11:34:35,519 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 11:34:35,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-09-10 11:34:35,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-09-10 11:34:35,519 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR___0 [2019-09-10 11:34:35,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blk_get_request [2019-09-10 11:34:35,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_blk_rq [2019-09-10 11:34:35,520 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-10 11:34:35,520 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 11:34:35,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 11:34:35,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-10 11:34:35,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 11:34:35,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 11:34:36,418 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-09-10 11:34:37,487 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 11:34:37,488 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-10 11:34:37,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 11:34:37 BoogieIcfgContainer [2019-09-10 11:34:37,490 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 11:34:37,491 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 11:34:37,491 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 11:34:37,494 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 11:34:37,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 11:34:33" (1/3) ... [2019-09-10 11:34:37,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39021296 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 11:34:37, skipping insertion in model container [2019-09-10 11:34:37,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:34:35" (2/3) ... [2019-09-10 11:34:37,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39021296 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 11:34:37, skipping insertion in model container [2019-09-10 11:34:37,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 11:34:37" (3/3) ... [2019-09-10 11:34:37,498 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-09-10 11:34:37,508 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 11:34:37,519 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 11:34:37,535 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 11:34:37,569 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 11:34:37,569 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 11:34:37,569 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 11:34:37,569 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 11:34:37,569 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 11:34:37,570 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 11:34:37,570 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 11:34:37,570 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 11:34:37,601 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states. [2019-09-10 11:34:37,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-09-10 11:34:37,616 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:34:37,618 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 11:34:37,620 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:34:37,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:34:37,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1995596837, now seen corresponding path program 1 times [2019-09-10 11:34:37,629 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:34:37,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:34:37,710 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:34:37,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:34:37,710 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:34:37,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:34:38,124 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-09-10 11:34:38,126 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 11:34:38,126 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 11:34:38,127 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:34:38,133 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 11:34:38,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 11:34:38,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 11:34:38,152 INFO L87 Difference]: Start difference. First operand 780 states. Second operand 3 states. [2019-09-10 11:34:38,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:34:38,383 INFO L93 Difference]: Finished difference Result 1431 states and 1713 transitions. [2019-09-10 11:34:38,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 11:34:38,385 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2019-09-10 11:34:38,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:34:38,420 INFO L225 Difference]: With dead ends: 1431 [2019-09-10 11:34:38,420 INFO L226 Difference]: Without dead ends: 1400 [2019-09-10 11:34:38,422 INFO L628 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 [2019-09-10 11:34:38,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1400 states. [2019-09-10 11:34:38,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1400 to 1397. [2019-09-10 11:34:38,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1397 states. [2019-09-10 11:34:38,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1397 states to 1397 states and 1658 transitions. [2019-09-10 11:34:38,581 INFO L78 Accepts]: Start accepts. Automaton has 1397 states and 1658 transitions. Word has length 64 [2019-09-10 11:34:38,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:34:38,582 INFO L475 AbstractCegarLoop]: Abstraction has 1397 states and 1658 transitions. [2019-09-10 11:34:38,582 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 11:34:38,582 INFO L276 IsEmpty]: Start isEmpty. Operand 1397 states and 1658 transitions. [2019-09-10 11:34:38,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-09-10 11:34:38,587 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:34:38,587 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 11:34:38,587 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:34:38,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:34:38,588 INFO L82 PathProgramCache]: Analyzing trace with hash 405886270, now seen corresponding path program 1 times [2019-09-10 11:34:38,588 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:34:38,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:34:38,594 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:34:38,594 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:34:38,594 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:34:38,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:34:38,817 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-09-10 11:34:38,818 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 11:34:38,818 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 11:34:38,818 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:34:38,821 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 11:34:38,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 11:34:38,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 11:34:38,822 INFO L87 Difference]: Start difference. First operand 1397 states and 1658 transitions. Second operand 3 states. [2019-09-10 11:34:38,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:34:38,908 INFO L93 Difference]: Finished difference Result 2738 states and 3267 transitions. [2019-09-10 11:34:38,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 11:34:38,909 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2019-09-10 11:34:38,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:34:38,992 INFO L225 Difference]: With dead ends: 2738 [2019-09-10 11:34:38,993 INFO L226 Difference]: Without dead ends: 2724 [2019-09-10 11:34:38,994 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 11:34:38,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2724 states. [2019-09-10 11:34:39,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2724 to 2724. [2019-09-10 11:34:39,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2724 states. [2019-09-10 11:34:39,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2724 states to 2724 states and 3251 transitions. [2019-09-10 11:34:39,091 INFO L78 Accepts]: Start accepts. Automaton has 2724 states and 3251 transitions. Word has length 66 [2019-09-10 11:34:39,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:34:39,092 INFO L475 AbstractCegarLoop]: Abstraction has 2724 states and 3251 transitions. [2019-09-10 11:34:39,092 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 11:34:39,092 INFO L276 IsEmpty]: Start isEmpty. Operand 2724 states and 3251 transitions. [2019-09-10 11:34:39,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-09-10 11:34:39,102 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:34:39,102 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 11:34:39,103 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:34:39,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:34:39,104 INFO L82 PathProgramCache]: Analyzing trace with hash -1146688042, now seen corresponding path program 1 times [2019-09-10 11:34:39,104 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:34:39,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:34:39,107 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:34:39,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:34:39,107 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:34:39,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:34:39,267 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-09-10 11:34:39,267 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 11:34:39,268 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 11:34:39,268 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:34:39,268 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 11:34:39,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 11:34:39,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 11:34:39,269 INFO L87 Difference]: Start difference. First operand 2724 states and 3251 transitions. Second operand 3 states. [2019-09-10 11:34:39,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:34:39,351 INFO L93 Difference]: Finished difference Result 4982 states and 5926 transitions. [2019-09-10 11:34:39,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 11:34:39,352 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 152 [2019-09-10 11:34:39,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:34:39,383 INFO L225 Difference]: With dead ends: 4982 [2019-09-10 11:34:39,384 INFO L226 Difference]: Without dead ends: 4982 [2019-09-10 11:34:39,384 INFO L628 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 [2019-09-10 11:34:39,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4982 states. [2019-09-10 11:34:39,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4982 to 4965. [2019-09-10 11:34:39,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4965 states. [2019-09-10 11:34:39,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4965 states to 4965 states and 5910 transitions. [2019-09-10 11:34:39,571 INFO L78 Accepts]: Start accepts. Automaton has 4965 states and 5910 transitions. Word has length 152 [2019-09-10 11:34:39,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:34:39,572 INFO L475 AbstractCegarLoop]: Abstraction has 4965 states and 5910 transitions. [2019-09-10 11:34:39,572 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 11:34:39,572 INFO L276 IsEmpty]: Start isEmpty. Operand 4965 states and 5910 transitions. [2019-09-10 11:34:39,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-09-10 11:34:39,580 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:34:39,581 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 11:34:39,581 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:34:39,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:34:39,582 INFO L82 PathProgramCache]: Analyzing trace with hash 1249214539, now seen corresponding path program 1 times [2019-09-10 11:34:39,582 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:34:39,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:34:39,585 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:34:39,585 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:34:39,585 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:34:39,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:34:39,870 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2019-09-10 11:34:39,870 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 11:34:39,871 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 11:34:39,871 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:34:39,872 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 11:34:39,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 11:34:39,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 11:34:39,873 INFO L87 Difference]: Start difference. First operand 4965 states and 5910 transitions. Second operand 5 states. [2019-09-10 11:34:39,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:34:39,966 INFO L93 Difference]: Finished difference Result 4990 states and 5932 transitions. [2019-09-10 11:34:39,967 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 11:34:40,044 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 201 [2019-09-10 11:34:40,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:34:40,070 INFO L225 Difference]: With dead ends: 4990 [2019-09-10 11:34:40,070 INFO L226 Difference]: Without dead ends: 4980 [2019-09-10 11:34:40,071 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 11:34:40,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4980 states. [2019-09-10 11:34:40,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4980 to 4972. [2019-09-10 11:34:40,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4972 states. [2019-09-10 11:34:40,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4972 states to 4972 states and 5915 transitions. [2019-09-10 11:34:40,220 INFO L78 Accepts]: Start accepts. Automaton has 4972 states and 5915 transitions. Word has length 201 [2019-09-10 11:34:40,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:34:40,221 INFO L475 AbstractCegarLoop]: Abstraction has 4972 states and 5915 transitions. [2019-09-10 11:34:40,221 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 11:34:40,221 INFO L276 IsEmpty]: Start isEmpty. Operand 4972 states and 5915 transitions. [2019-09-10 11:34:40,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2019-09-10 11:34:40,230 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:34:40,230 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 11:34:40,230 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:34:40,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:34:40,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1433597583, now seen corresponding path program 1 times [2019-09-10 11:34:40,231 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:34:40,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:34:40,234 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:34:40,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:34:40,234 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:34:40,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:34:40,530 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-09-10 11:34:40,530 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 11:34:40,531 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 11:34:40,532 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 207 with the following transitions: [2019-09-10 11:34:40,550 INFO L207 CegarAbsIntRunner]: [200], [201], [207], [208], [209], [210], [211], [213], [214], [217], [219], [223], [225], [226], [270], [271], [294], [299], [300], [305], [311], [312], [315], [317], [318], [321], [322], [323], [325], [326], [362], [364], [367], [369], [371], [423], [426], [429], [432], [435], [437], [441], [444], [447], [449], [452], [454], [463], [482], [485], [488], [491], [494], [496], [542], [543], [558], [565], [566], [567], [568], [631], [633], [634], [635], [638], [640], [653], [655], [671], [672], [673], [682], [683], [745], [747], [748], [751], [753], [754], [760], [766], [769], [775], [778], [781], [785], [786], [787], [788], [817], [819], [820], [856], [858], [860], [866], [868], [870], [877], [879], [880], [1169], [1186], [1188], [1189], [1240], [1241], [1242], [1243], [1244], [1245], [1260], [1261], [1262], [1263], [1274], [1275], [1276], [1277], [1278], [1279], [1280], [1281], [1288], [1289], [1290], [1291], [1292], [1293], [1294], [1295], [1298], [1299], [1306], [1310], [1311], [1312], [1313], [1346], [1347], [1348], [1349], [1368], [1369], [1370], [1371], [1376], [1377], [1380], [1381], [1390], [1391], [1398], [1399], [1400], [1401], [1404], [1405], [1406], [1407], [1412], [1413], [1518], [1522], [1523], [1524], [1526], [1527] [2019-09-10 11:34:40,614 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 11:34:40,614 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 11:34:40,700 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 11:34:40,701 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 64 root evaluator evaluations with a maximum evaluation depth of 0. Performed 64 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 108 variables. [2019-09-10 11:34:40,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:34:40,705 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 11:34:40,793 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 11:34:40,794 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 11:34:40,799 INFO L420 sIntCurrentIteration]: We unified 205 AI predicates to 205 [2019-09-10 11:34:40,799 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 11:34:40,800 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 11:34:40,800 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 6 [2019-09-10 11:34:40,800 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:34:40,801 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 11:34:40,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 11:34:40,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 11:34:40,802 INFO L87 Difference]: Start difference. First operand 4972 states and 5915 transitions. Second operand 2 states. [2019-09-10 11:34:40,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:34:40,802 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 11:34:40,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 11:34:40,802 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 206 [2019-09-10 11:34:40,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:34:40,803 INFO L225 Difference]: With dead ends: 2 [2019-09-10 11:34:40,803 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 11:34:40,803 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 11:34:40,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 11:34:40,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 11:34:40,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 11:34:40,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 11:34:40,804 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 206 [2019-09-10 11:34:40,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:34:40,805 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 11:34:40,805 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 11:34:40,805 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 11:34:40,805 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 11:34:40,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 11:34:40 BoogieIcfgContainer [2019-09-10 11:34:40,810 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 11:34:40,813 INFO L168 Benchmark]: Toolchain (without parser) took 7683.30 ms. Allocated memory was 143.1 MB in the beginning and 362.3 MB in the end (delta: 219.2 MB). Free memory was 85.6 MB in the beginning and 130.4 MB in the end (delta: -44.7 MB). Peak memory consumption was 174.4 MB. Max. memory is 7.1 GB. [2019-09-10 11:34:40,814 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 143.1 MB. Free memory was 109.4 MB in the beginning and 109.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-09-10 11:34:40,815 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1903.41 ms. Allocated memory was 143.1 MB in the beginning and 221.8 MB in the end (delta: 78.6 MB). Free memory was 85.4 MB in the beginning and 103.1 MB in the end (delta: -17.6 MB). Peak memory consumption was 75.3 MB. Max. memory is 7.1 GB. [2019-09-10 11:34:40,816 INFO L168 Benchmark]: Boogie Preprocessor took 245.28 ms. Allocated memory is still 221.8 MB. Free memory was 103.1 MB in the beginning and 91.8 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2019-09-10 11:34:40,817 INFO L168 Benchmark]: RCFGBuilder took 2206.02 ms. Allocated memory was 221.8 MB in the beginning and 269.5 MB in the end (delta: 47.7 MB). Free memory was 91.8 MB in the beginning and 166.5 MB in the end (delta: -74.7 MB). Peak memory consumption was 66.5 MB. Max. memory is 7.1 GB. [2019-09-10 11:34:40,818 INFO L168 Benchmark]: TraceAbstraction took 3319.62 ms. Allocated memory was 269.5 MB in the beginning and 362.3 MB in the end (delta: 92.8 MB). Free memory was 166.5 MB in the beginning and 130.4 MB in the end (delta: 36.1 MB). Peak memory consumption was 128.9 MB. Max. memory is 7.1 GB. [2019-09-10 11:34:40,822 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 143.1 MB. Free memory was 109.4 MB in the beginning and 109.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1903.41 ms. Allocated memory was 143.1 MB in the beginning and 221.8 MB in the end (delta: 78.6 MB). Free memory was 85.4 MB in the beginning and 103.1 MB in the end (delta: -17.6 MB). Peak memory consumption was 75.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 245.28 ms. Allocated memory is still 221.8 MB. Free memory was 103.1 MB in the beginning and 91.8 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2206.02 ms. Allocated memory was 221.8 MB in the beginning and 269.5 MB in the end (delta: 47.7 MB). Free memory was 91.8 MB in the beginning and 166.5 MB in the end (delta: -74.7 MB). Peak memory consumption was 66.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3319.62 ms. Allocated memory was 269.5 MB in the beginning and 362.3 MB in the end (delta: 92.8 MB). Free memory was 166.5 MB in the beginning and 130.4 MB in the end (delta: 36.1 MB). Peak memory consumption was 128.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4227]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 118 procedures, 801 locations, 1 error locations. SAFE Result, 3.2s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3988 SDtfs, 2393 SDslu, 5163 SDs, 0 SdLazy, 41 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 220 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4972occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 2.229268292682927 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 28 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 689 NumberOfCodeBlocks, 689 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 684 ConstructedInterpolants, 0 QuantifiedInterpolants, 125911 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 134/148 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...