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-fea9116 [2019-09-20 13:44:29,964 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:44:29,966 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:44:29,978 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:44:29,978 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:44:29,979 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:44:29,981 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:44:29,982 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:44:29,984 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:44:29,985 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:44:29,986 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:44:29,987 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:44:29,987 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:44:29,988 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:44:29,989 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:44:29,990 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:44:29,991 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:44:29,992 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:44:29,994 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:44:29,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:44:29,998 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:44:29,999 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:44:30,000 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:44:30,001 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:44:30,004 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:44:30,004 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:44:30,004 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:44:30,006 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:44:30,007 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:44:30,008 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:44:30,008 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:44:30,009 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:44:30,010 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:44:30,010 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:44:30,011 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:44:30,012 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:44:30,012 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:44:30,013 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:44:30,013 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:44:30,014 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:44:30,014 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:44:30,015 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 [2019-09-20 13:44:30,031 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:44:30,031 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:44:30,032 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:44:30,032 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:44:30,032 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:44:30,033 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:44:30,033 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:44:30,033 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:44:30,033 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:44:30,033 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:44:30,034 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:44:30,034 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:44:30,034 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:44:30,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:44:30,035 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:44:30,035 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:44:30,035 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:44:30,035 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:44:30,035 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:44:30,036 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:44:30,036 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:44:30,036 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:44:30,036 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:44:30,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:44:30,037 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:44:30,037 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:44:30,037 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:44:30,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:44:30,038 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:44:30,038 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:44:30,065 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:44:30,077 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:44:30,080 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:44:30,082 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:44:30,082 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:44:30,083 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-09-20 13:44:30,142 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad87d2b74/773cce9530844a4e96b95261395b0779/FLAG1ca45a602 [2019-09-20 13:44:30,789 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:44:30,790 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-09-20 13:44:30,830 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad87d2b74/773cce9530844a4e96b95261395b0779/FLAG1ca45a602 [2019-09-20 13:44:30,964 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad87d2b74/773cce9530844a4e96b95261395b0779 [2019-09-20 13:44:30,972 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:44:30,974 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:44:30,975 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:44:30,975 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:44:30,979 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:44:30,980 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:44:30" (1/1) ... [2019-09-20 13:44:30,983 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2496db35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:44:30, skipping insertion in model container [2019-09-20 13:44:30,983 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:44:30" (1/1) ... [2019-09-20 13:44:30,990 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:44:31,080 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:44:32,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:44:32,232 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:44:32,478 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:44:32,578 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:44:32,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:44:32 WrapperNode [2019-09-20 13:44:32,579 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:44:32,580 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:44:32,580 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:44:32,580 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:44:32,593 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:44:32" (1/1) ... [2019-09-20 13:44:32,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:44:32" (1/1) ... [2019-09-20 13:44:32,632 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:44:32" (1/1) ... [2019-09-20 13:44:32,632 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:44:32" (1/1) ... [2019-09-20 13:44:32,730 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:44:32" (1/1) ... [2019-09-20 13:44:32,749 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:44:32" (1/1) ... [2019-09-20 13:44:32,784 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:44:32" (1/1) ... [2019-09-20 13:44:32,808 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:44:32,809 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:44:32,809 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:44:32,809 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:44:32,812 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:44:32" (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 [2019-09-20 13:44:32,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:44:32,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:44:32,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2019-09-20 13:44:32,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2019-09-20 13:44:32,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-09-20 13:44:32,909 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-09-20 13:44:32,909 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-09-20 13:44:32,910 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2019-09-20 13:44:32,910 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2019-09-20 13:44:32,910 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-09-20 13:44:32,911 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-09-20 13:44:32,913 INFO L138 BoogieDeclarations]: Found implementation of procedure get_capacity [2019-09-20 13:44:32,914 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2019-09-20 13:44:32,916 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-09-20 13:44:32,916 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_create_kmalloc_pool [2019-09-20 13:44:32,919 INFO L138 BoogieDeclarations]: Found implementation of procedure req_get_ioprio [2019-09-20 13:44:32,920 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_pos [2019-09-20 13:44:32,920 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_logical_block_size [2019-09-20 13:44:32,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-09-20 13:44:32,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-09-20 13:44:32,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-09-20 13:44:32,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-09-20 13:44:32,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-09-20 13:44:32,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-09-20 13:44:32,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-09-20 13:44:32,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-09-20 13:44:32,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-09-20 13:44:32,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-09-20 13:44:32,925 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-09-20 13:44:32,925 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_assign_page [2019-09-20 13:44:32,925 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_page [2019-09-20 13:44:32,926 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_buf [2019-09-20 13:44:32,926 INFO L138 BoogieDeclarations]: Found implementation of procedure virtqueue_add_buf [2019-09-20 13:44:32,927 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_has_feature [2019-09-20 13:44:32,927 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_config_buf [2019-09-20 13:44:32,927 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_find_single_vq [2019-09-20 13:44:32,927 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_done [2019-09-20 13:44:32,928 INFO L138 BoogieDeclarations]: Found implementation of procedure do_req [2019-09-20 13:44:32,928 INFO L138 BoogieDeclarations]: Found implementation of procedure do_virtblk_request [2019-09-20 13:44:32,928 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_prepare_flush [2019-09-20 13:44:32,929 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_get_id [2019-09-20 13:44:32,929 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_ioctl [2019-09-20 13:44:32,929 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_getgeo [2019-09-20 13:44:32,930 INFO L138 BoogieDeclarations]: Found implementation of procedure index_to_minor [2019-09-20 13:44:32,930 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_probe [2019-09-20 13:44:32,930 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_remove [2019-09-20 13:44:32,931 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2019-09-20 13:44:32,931 INFO L138 BoogieDeclarations]: Found implementation of procedure fini [2019-09-20 13:44:32,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_virtio_driver_1 [2019-09-20 13:44:32,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_block_device_operations_2 [2019-09-20 13:44:32,932 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:44:32,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2019-09-20 13:44:32,933 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-09-20 13:44:32,933 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-09-20 13:44:32,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blk_make_request_5 [2019-09-20 13:44:32,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-09-20 13:44:32,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-09-20 13:44:32,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-09-20 13:44:32,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-09-20 13:44:32,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-09-20 13:44:32,935 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR___0 [2019-09-20 13:44:32,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blk_get_request [2019-09-20 13:44:32,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blk_make_request [2019-09-20 13:44:32,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_blk_rq [2019-09-20 13:44:32,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-20 13:44:32,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __blk_end_request_all [2019-09-20 13:44:32,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-09-20 13:44:32,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2019-09-20 13:44:32,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-09-20 13:44:32,938 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-09-20 13:44:32,938 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-09-20 13:44:32,938 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-09-20 13:44:32,938 INFO L138 BoogieDeclarations]: Found implementation of procedure add_disk [2019-09-20 13:44:32,939 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_disk [2019-09-20 13:44:32,939 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_map_kern [2019-09-20 13:44:32,939 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_put [2019-09-20 13:44:32,940 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2019-09-20 13:44:32,940 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_execute_rq [2019-09-20 13:44:32,940 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_init_queue [2019-09-20 13:44:32,940 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_peek_request [2019-09-20 13:44:32,941 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_alignment_offset [2019-09-20 13:44:32,941 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_bounce_limit [2019-09-20 13:44:32,941 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_io_min [2019-09-20 13:44:32,941 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_io_opt [2019-09-20 13:44:32,942 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_logical_block_size [2019-09-20 13:44:32,943 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_hw_sectors [2019-09-20 13:44:32,943 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segment_size [2019-09-20 13:44:32,944 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segments [2019-09-20 13:44:32,944 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_ordered [2019-09-20 13:44:32,944 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_physical_block_size [2019-09-20 13:44:32,944 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_map_sg [2019-09-20 13:44:32,944 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_start_queue [2019-09-20 13:44:32,944 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_start_request [2019-09-20 13:44:32,945 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_stop_queue [2019-09-20 13:44:32,945 INFO L138 BoogieDeclarations]: Found implementation of procedure del_gendisk [2019-09-20 13:44:32,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-20 13:44:32,945 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-09-20 13:44:32,945 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_alloc [2019-09-20 13:44:32,946 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_create [2019-09-20 13:44:32,946 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_destroy [2019-09-20 13:44:32,946 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_free [2019-09-20 13:44:32,946 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-09-20 13:44:32,946 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2019-09-20 13:44:32,947 INFO L138 BoogieDeclarations]: Found implementation of procedure register_blkdev [2019-09-20 13:44:32,947 INFO L138 BoogieDeclarations]: Found implementation of procedure register_virtio_driver [2019-09-20 13:44:32,947 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_cmd_ioctl [2019-09-20 13:44:32,947 INFO L138 BoogieDeclarations]: Found implementation of procedure set_disk_ro [2019-09-20 13:44:32,947 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_init_table [2019-09-20 13:44:32,948 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2019-09-20 13:44:32,948 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_virtio_driver [2019-09-20 13:44:32,948 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_check_driver_offered_feature [2019-09-20 13:44:32,948 INFO L138 BoogieDeclarations]: Found implementation of procedure virtqueue_add_buf_gfp [2019-09-20 13:44:32,948 INFO L138 BoogieDeclarations]: Found implementation of procedure virtqueue_get_buf [2019-09-20 13:44:32,948 INFO L138 BoogieDeclarations]: Found implementation of procedure virtqueue_kick [2019-09-20 13:44:32,949 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-20 13:44:32,949 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-20 13:44:32,949 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-09-20 13:44:32,986 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-09-20 13:44:32,986 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:44:32,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-09-20 13:44:32,987 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-09-20 13:44:32,987 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-09-20 13:44:32,987 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-09-20 13:44:32,987 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2019-09-20 13:44:32,987 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-09-20 13:44:32,987 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2019-09-20 13:44:32,988 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-09-20 13:44:32,988 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-09-20 13:44:32,988 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-09-20 13:44:32,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:44:32,988 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-09-20 13:44:32,988 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2019-09-20 13:44:32,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:44:32,989 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-09-20 13:44:32,989 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2019-09-20 13:44:32,989 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-09-20 13:44:32,989 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-09-20 13:44:32,989 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-09-20 13:44:32,989 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-09-20 13:44:32,990 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-09-20 13:44:32,990 INFO L130 BoogieDeclarations]: Found specification of procedure register_blkdev [2019-09-20 13:44:32,990 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2019-09-20 13:44:32,991 INFO L130 BoogieDeclarations]: Found specification of procedure add_disk [2019-09-20 13:44:32,991 INFO L130 BoogieDeclarations]: Found specification of procedure del_gendisk [2019-09-20 13:44:32,991 INFO L130 BoogieDeclarations]: Found specification of procedure set_disk_ro [2019-09-20 13:44:32,992 INFO L130 BoogieDeclarations]: Found specification of procedure get_capacity [2019-09-20 13:44:32,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:44:32,992 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2019-09-20 13:44:32,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:44:32,993 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_disk [2019-09-20 13:44:32,993 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2019-09-20 13:44:32,993 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-09-20 13:44:32,993 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-09-20 13:44:32,993 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_create [2019-09-20 13:44:32,993 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_destroy [2019-09-20 13:44:32,994 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_alloc [2019-09-20 13:44:32,994 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free [2019-09-20 13:44:32,994 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_kmalloc [2019-09-20 13:44:32,994 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_kfree [2019-09-20 13:44:32,994 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_create_kmalloc_pool [2019-09-20 13:44:32,994 INFO L130 BoogieDeclarations]: Found specification of procedure bio_put [2019-09-20 13:44:32,994 INFO L130 BoogieDeclarations]: Found specification of procedure bio_map_kern [2019-09-20 13:44:32,995 INFO L130 BoogieDeclarations]: Found specification of procedure req_get_ioprio [2019-09-20 13:44:32,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blk_make_request_5 [2019-09-20 13:44:32,995 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_cmd_ioctl [2019-09-20 13:44:32,995 INFO L130 BoogieDeclarations]: Found specification of procedure blk_start_queue [2019-09-20 13:44:32,995 INFO L130 BoogieDeclarations]: Found specification of procedure blk_stop_queue [2019-09-20 13:44:32,997 INFO L130 BoogieDeclarations]: Found specification of procedure blk_execute_rq [2019-09-20 13:44:32,997 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_pos [2019-09-20 13:44:32,997 INFO L130 BoogieDeclarations]: Found specification of procedure blk_peek_request [2019-09-20 13:44:32,997 INFO L130 BoogieDeclarations]: Found specification of procedure blk_start_request [2019-09-20 13:44:32,997 INFO L130 BoogieDeclarations]: Found specification of procedure __blk_end_request_all [2019-09-20 13:44:32,998 INFO L130 BoogieDeclarations]: Found specification of procedure blk_init_queue [2019-09-20 13:44:32,998 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2019-09-20 13:44:32,998 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_bounce_limit [2019-09-20 13:44:32,998 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_hw_sectors [2019-09-20 13:44:32,999 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segments [2019-09-20 13:44:32,999 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segment_size [2019-09-20 13:44:32,999 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_logical_block_size [2019-09-20 13:44:32,999 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_physical_block_size [2019-09-20 13:44:33,000 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_alignment_offset [2019-09-20 13:44:33,000 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_io_min [2019-09-20 13:44:33,000 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_io_opt [2019-09-20 13:44:33,000 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_ordered [2019-09-20 13:44:33,001 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_map_sg [2019-09-20 13:44:33,001 INFO L130 BoogieDeclarations]: Found specification of procedure queue_logical_block_size [2019-09-20 13:44:33,001 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:44:33,001 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-20 13:44:33,002 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:44:33,002 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-09-20 13:44:33,002 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-20 13:44:33,002 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-20 13:44:33,002 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-20 13:44:33,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-09-20 13:44:33,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:44:33,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-09-20 13:44:33,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-09-20 13:44:33,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-09-20 13:44:33,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-09-20 13:44:33,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-09-20 13:44:33,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-09-20 13:44:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-09-20 13:44:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-09-20 13:44:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-09-20 13:44:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blk_make_request [2019-09-20 13:44:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-09-20 13:44:33,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-09-20 13:44:33,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-09-20 13:44:33,006 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-20 13:44:33,006 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-09-20 13:44:33,007 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-09-20 13:44:33,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_virtio_driver_1 [2019-09-20 13:44:33,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_block_device_operations_2 [2019-09-20 13:44:33,007 INFO L130 BoogieDeclarations]: Found specification of procedure sg_assign_page [2019-09-20 13:44:33,008 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_page [2019-09-20 13:44:33,008 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_buf [2019-09-20 13:44:33,008 INFO L130 BoogieDeclarations]: Found specification of procedure sg_init_table [2019-09-20 13:44:33,008 INFO L130 BoogieDeclarations]: Found specification of procedure virtqueue_add_buf_gfp [2019-09-20 13:44:33,008 INFO L130 BoogieDeclarations]: Found specification of procedure virtqueue_add_buf [2019-09-20 13:44:33,009 INFO L130 BoogieDeclarations]: Found specification of procedure virtqueue_kick [2019-09-20 13:44:33,009 INFO L130 BoogieDeclarations]: Found specification of procedure virtqueue_get_buf [2019-09-20 13:44:33,009 INFO L130 BoogieDeclarations]: Found specification of procedure register_virtio_driver [2019-09-20 13:44:33,009 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_virtio_driver [2019-09-20 13:44:33,010 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_check_driver_offered_feature [2019-09-20 13:44:33,010 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_has_feature [2019-09-20 13:44:33,010 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_config_buf [2019-09-20 13:44:33,010 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2019-09-20 13:44:33,011 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_find_single_vq [2019-09-20 13:44:33,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:44:33,011 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2019-09-20 13:44:33,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:44:33,011 INFO L130 BoogieDeclarations]: Found specification of procedure blk_done [2019-09-20 13:44:33,012 INFO L130 BoogieDeclarations]: Found specification of procedure do_req [2019-09-20 13:44:33,012 INFO L130 BoogieDeclarations]: Found specification of procedure do_virtblk_request [2019-09-20 13:44:33,012 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_prepare_flush [2019-09-20 13:44:33,012 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_get_id [2019-09-20 13:44:33,013 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_ioctl [2019-09-20 13:44:33,013 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_getgeo [2019-09-20 13:44:33,013 INFO L130 BoogieDeclarations]: Found specification of procedure index_to_minor [2019-09-20 13:44:33,013 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_probe [2019-09-20 13:44:33,014 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-09-20 13:44:33,014 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_remove [2019-09-20 13:44:33,014 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-09-20 13:44:33,014 INFO L130 BoogieDeclarations]: Found specification of procedure fini [2019-09-20 13:44:33,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-20 13:44:33,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-20 13:44:33,015 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:44:33,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-09-20 13:44:33,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-09-20 13:44:33,016 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR___0 [2019-09-20 13:44:33,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blk_get_request [2019-09-20 13:44:33,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_blk_rq [2019-09-20 13:44:33,017 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-20 13:44:33,017 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:44:33,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:44:33,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-20 13:44:33,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:44:33,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:44:34,111 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-09-20 13:44:35,392 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:44:35,392 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-20 13:44:35,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:44:35 BoogieIcfgContainer [2019-09-20 13:44:35,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:44:35,395 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:44:35,395 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:44:35,399 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:44:35,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:44:30" (1/3) ... [2019-09-20 13:44:35,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5845ee24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:44:35, skipping insertion in model container [2019-09-20 13:44:35,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:44:32" (2/3) ... [2019-09-20 13:44:35,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5845ee24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:44:35, skipping insertion in model container [2019-09-20 13:44:35,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:44:35" (3/3) ... [2019-09-20 13:44:35,402 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 [2019-09-20 13:44:35,413 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:44:35,426 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:44:35,443 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:44:35,471 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:44:35,472 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:44:35,472 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:44:35,472 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:44:35,472 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:44:35,472 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:44:35,472 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:44:35,473 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:44:35,514 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states. [2019-09-20 13:44:35,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-09-20 13:44:35,533 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:44:35,534 INFO L407 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] [2019-09-20 13:44:35,538 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:44:35,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:44:35,544 INFO L82 PathProgramCache]: Analyzing trace with hash 1995596837, now seen corresponding path program 1 times [2019-09-20 13:44:35,546 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:44:35,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:44:35,629 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:44:35,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:44:35,630 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:44:35,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:44:36,045 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-09-20 13:44:36,047 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:44:36,047 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:44:36,047 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:44:36,053 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:44:36,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:44:36,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:44:36,071 INFO L87 Difference]: Start difference. First operand 780 states. Second operand 3 states. [2019-09-20 13:44:36,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:44:36,249 INFO L93 Difference]: Finished difference Result 1431 states and 1713 transitions. [2019-09-20 13:44:36,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:44:36,251 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2019-09-20 13:44:36,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:44:36,292 INFO L225 Difference]: With dead ends: 1431 [2019-09-20 13:44:36,292 INFO L226 Difference]: Without dead ends: 1400 [2019-09-20 13:44:36,299 INFO L636 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 [2019-09-20 13:44:36,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1400 states. [2019-09-20 13:44:36,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1400 to 1397. [2019-09-20 13:44:36,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1397 states. [2019-09-20 13:44:36,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1397 states to 1397 states and 1658 transitions. [2019-09-20 13:44:36,479 INFO L78 Accepts]: Start accepts. Automaton has 1397 states and 1658 transitions. Word has length 64 [2019-09-20 13:44:36,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:44:36,479 INFO L475 AbstractCegarLoop]: Abstraction has 1397 states and 1658 transitions. [2019-09-20 13:44:36,480 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:44:36,480 INFO L276 IsEmpty]: Start isEmpty. Operand 1397 states and 1658 transitions. [2019-09-20 13:44:36,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-09-20 13:44:36,484 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:44:36,484 INFO L407 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] [2019-09-20 13:44:36,484 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:44:36,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:44:36,485 INFO L82 PathProgramCache]: Analyzing trace with hash 405886270, now seen corresponding path program 1 times [2019-09-20 13:44:36,485 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:44:36,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:44:36,499 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:44:36,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:44:36,499 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:44:36,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:44:36,648 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-09-20 13:44:36,649 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:44:36,649 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:44:36,649 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:44:36,651 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:44:36,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:44:36,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:44:36,652 INFO L87 Difference]: Start difference. First operand 1397 states and 1658 transitions. Second operand 3 states. [2019-09-20 13:44:36,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:44:36,717 INFO L93 Difference]: Finished difference Result 2738 states and 3267 transitions. [2019-09-20 13:44:36,718 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:44:36,718 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2019-09-20 13:44:36,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:44:36,734 INFO L225 Difference]: With dead ends: 2738 [2019-09-20 13:44:36,735 INFO L226 Difference]: Without dead ends: 2724 [2019-09-20 13:44:36,736 INFO L636 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 [2019-09-20 13:44:36,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2724 states. [2019-09-20 13:44:36,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2724 to 2724. [2019-09-20 13:44:36,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2724 states. [2019-09-20 13:44:36,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2724 states to 2724 states and 3251 transitions. [2019-09-20 13:44:36,834 INFO L78 Accepts]: Start accepts. Automaton has 2724 states and 3251 transitions. Word has length 66 [2019-09-20 13:44:36,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:44:36,835 INFO L475 AbstractCegarLoop]: Abstraction has 2724 states and 3251 transitions. [2019-09-20 13:44:36,835 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:44:36,835 INFO L276 IsEmpty]: Start isEmpty. Operand 2724 states and 3251 transitions. [2019-09-20 13:44:36,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-09-20 13:44:36,845 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:44:36,846 INFO L407 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] [2019-09-20 13:44:36,846 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:44:36,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:44:36,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1146688042, now seen corresponding path program 1 times [2019-09-20 13:44:36,846 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:44:36,854 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:44:36,854 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:44:36,854 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:44:36,855 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:44:36,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:44:37,118 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-09-20 13:44:37,118 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:44:37,119 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:44:37,119 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:44:37,121 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:44:37,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:44:37,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:44:37,122 INFO L87 Difference]: Start difference. First operand 2724 states and 3251 transitions. Second operand 3 states. [2019-09-20 13:44:37,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:44:37,206 INFO L93 Difference]: Finished difference Result 4982 states and 5926 transitions. [2019-09-20 13:44:37,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:44:37,207 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 152 [2019-09-20 13:44:37,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:44:37,236 INFO L225 Difference]: With dead ends: 4982 [2019-09-20 13:44:37,237 INFO L226 Difference]: Without dead ends: 4982 [2019-09-20 13:44:37,237 INFO L636 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 [2019-09-20 13:44:37,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4982 states. [2019-09-20 13:44:37,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4982 to 4965. [2019-09-20 13:44:37,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4965 states. [2019-09-20 13:44:37,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4965 states to 4965 states and 5910 transitions. [2019-09-20 13:44:37,411 INFO L78 Accepts]: Start accepts. Automaton has 4965 states and 5910 transitions. Word has length 152 [2019-09-20 13:44:37,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:44:37,411 INFO L475 AbstractCegarLoop]: Abstraction has 4965 states and 5910 transitions. [2019-09-20 13:44:37,411 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:44:37,412 INFO L276 IsEmpty]: Start isEmpty. Operand 4965 states and 5910 transitions. [2019-09-20 13:44:37,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-09-20 13:44:37,431 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:44:37,431 INFO L407 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] [2019-09-20 13:44:37,431 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:44:37,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:44:37,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1249214539, now seen corresponding path program 1 times [2019-09-20 13:44:37,436 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:44:37,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:44:37,447 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:44:37,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:44:37,447 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:44:37,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:44:37,694 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2019-09-20 13:44:37,695 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:44:37,695 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:44:37,695 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:44:37,696 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:44:37,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:44:37,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:44:37,697 INFO L87 Difference]: Start difference. First operand 4965 states and 5910 transitions. Second operand 5 states. [2019-09-20 13:44:37,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:44:37,779 INFO L93 Difference]: Finished difference Result 4990 states and 5932 transitions. [2019-09-20 13:44:37,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 13:44:37,779 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 201 [2019-09-20 13:44:37,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:44:37,805 INFO L225 Difference]: With dead ends: 4990 [2019-09-20 13:44:37,806 INFO L226 Difference]: Without dead ends: 4980 [2019-09-20 13:44:37,806 INFO L636 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 [2019-09-20 13:44:37,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4980 states. [2019-09-20 13:44:37,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4980 to 4972. [2019-09-20 13:44:37,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4972 states. [2019-09-20 13:44:37,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4972 states to 4972 states and 5915 transitions. [2019-09-20 13:44:37,993 INFO L78 Accepts]: Start accepts. Automaton has 4972 states and 5915 transitions. Word has length 201 [2019-09-20 13:44:37,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:44:37,994 INFO L475 AbstractCegarLoop]: Abstraction has 4972 states and 5915 transitions. [2019-09-20 13:44:37,994 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:44:37,994 INFO L276 IsEmpty]: Start isEmpty. Operand 4972 states and 5915 transitions. [2019-09-20 13:44:38,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2019-09-20 13:44:38,007 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:44:38,007 INFO L407 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] [2019-09-20 13:44:38,007 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:44:38,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:44:38,008 INFO L82 PathProgramCache]: Analyzing trace with hash -1433597583, now seen corresponding path program 1 times [2019-09-20 13:44:38,008 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:44:38,019 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:44:38,019 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:44:38,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:44:38,020 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:44:38,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:44:38,525 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-09-20 13:44:38,525 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:44:38,526 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:44:38,527 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 207 with the following transitions: [2019-09-20 13:44:38,529 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] [2019-09-20 13:44:38,578 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:44:38,578 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:44:38,664 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:44:38,666 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. [2019-09-20 13:44:38,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:44:38,672 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:44:38,791 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-20 13:44:38,791 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:44:38,798 INFO L420 sIntCurrentIteration]: We unified 205 AI predicates to 205 [2019-09-20 13:44:38,798 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:44:38,799 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:44:38,799 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 6 [2019-09-20 13:44:38,799 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:44:38,800 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:44:38,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:44:38,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:44:38,801 INFO L87 Difference]: Start difference. First operand 4972 states and 5915 transitions. Second operand 2 states. [2019-09-20 13:44:38,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:44:38,801 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-20 13:44:38,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:44:38,801 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 206 [2019-09-20 13:44:38,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:44:38,802 INFO L225 Difference]: With dead ends: 2 [2019-09-20 13:44:38,802 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:44:38,802 INFO L636 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 [2019-09-20 13:44:38,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:44:38,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:44:38,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:44:38,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:44:38,803 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 206 [2019-09-20 13:44:38,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:44:38,804 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:44:38,804 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:44:38,804 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:44:38,804 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:44:38,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:44:38 BoogieIcfgContainer [2019-09-20 13:44:38,811 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:44:38,815 INFO L168 Benchmark]: Toolchain (without parser) took 7839.62 ms. Allocated memory was 133.2 MB in the beginning and 404.8 MB in the end (delta: 271.6 MB). Free memory was 78.0 MB in the beginning and 238.2 MB in the end (delta: -160.2 MB). Peak memory consumption was 111.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:44:38,817 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 133.2 MB. Free memory was 102.3 MB in the beginning and 102.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:44:38,819 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1604.19 ms. Allocated memory was 133.2 MB in the beginning and 209.7 MB in the end (delta: 76.5 MB). Free memory was 77.8 MB in the beginning and 91.8 MB in the end (delta: -14.0 MB). Peak memory consumption was 73.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:44:38,820 INFO L168 Benchmark]: Boogie Preprocessor took 228.52 ms. Allocated memory is still 209.7 MB. Free memory was 91.8 MB in the beginning and 80.7 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:44:38,822 INFO L168 Benchmark]: RCFGBuilder took 2585.77 ms. Allocated memory was 209.7 MB in the beginning and 287.8 MB in the end (delta: 78.1 MB). Free memory was 80.7 MB in the beginning and 207.1 MB in the end (delta: -126.4 MB). Peak memory consumption was 98.2 MB. Max. memory is 7.1 GB. [2019-09-20 13:44:38,823 INFO L168 Benchmark]: TraceAbstraction took 3416.22 ms. Allocated memory was 287.8 MB in the beginning and 404.8 MB in the end (delta: 116.9 MB). Free memory was 207.1 MB in the beginning and 238.2 MB in the end (delta: -31.1 MB). Peak memory consumption was 85.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:44:38,832 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 133.2 MB. Free memory was 102.3 MB in the beginning and 102.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1604.19 ms. Allocated memory was 133.2 MB in the beginning and 209.7 MB in the end (delta: 76.5 MB). Free memory was 77.8 MB in the beginning and 91.8 MB in the end (delta: -14.0 MB). Peak memory consumption was 73.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 228.52 ms. Allocated memory is still 209.7 MB. Free memory was 91.8 MB in the beginning and 80.7 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2585.77 ms. Allocated memory was 209.7 MB in the beginning and 287.8 MB in the end (delta: 78.1 MB). Free memory was 80.7 MB in the beginning and 207.1 MB in the end (delta: -126.4 MB). Peak memory consumption was 98.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3416.22 ms. Allocated memory was 287.8 MB in the beginning and 404.8 MB in the end (delta: 116.9 MB). Free memory was 207.1 MB in the beginning and 238.2 MB in the end (delta: -31.1 MB). Peak memory consumption was 85.8 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, 3.3s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 0.5s 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: 0.6s AutomataMinimizationTime, 5 MinimizatonAttempts, 28 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.9s 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...