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-c0cc359-1-104_1a-drivers--usb--serial--qcserial.ko-entry_point_ldv-val-v0.8.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 11:41:20,936 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 11:41:20,938 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 11:41:20,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 11:41:20,950 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 11:41:20,952 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 11:41:20,953 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 11:41:20,955 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 11:41:20,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 11:41:20,957 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 11:41:20,958 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 11:41:20,959 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 11:41:20,960 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 11:41:20,961 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 11:41:20,962 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 11:41:20,963 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 11:41:20,963 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 11:41:20,964 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 11:41:20,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 11:41:20,968 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 11:41:20,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 11:41:20,971 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 11:41:20,972 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 11:41:20,973 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 11:41:20,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 11:41:20,975 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 11:41:20,976 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 11:41:20,976 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 11:41:20,977 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 11:41:20,978 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 11:41:20,978 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 11:41:20,979 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 11:41:20,980 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 11:41:20,980 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 11:41:20,981 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 11:41:20,982 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 11:41:20,982 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 11:41:20,982 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 11:41:20,983 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 11:41:20,984 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 11:41:20,984 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 11:41:20,985 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 11:41:21,001 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 11:41:21,001 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 11:41:21,001 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 11:41:21,002 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 11:41:21,002 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 11:41:21,002 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 11:41:21,003 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 11:41:21,003 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 11:41:21,003 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 11:41:21,003 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 11:41:21,004 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 11:41:21,004 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 11:41:21,004 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 11:41:21,004 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 11:41:21,005 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 11:41:21,005 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 11:41:21,005 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 11:41:21,005 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 11:41:21,005 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 11:41:21,006 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 11:41:21,006 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 11:41:21,006 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 11:41:21,006 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 11:41:21,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 11:41:21,007 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 11:41:21,007 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 11:41:21,007 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 11:41:21,007 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 11:41:21,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 11:41:21,008 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 11:41:21,039 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 11:41:21,055 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 11:41:21,058 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 11:41:21,062 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 11:41:21,062 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 11:41:21,063 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-c0cc359-1-104_1a-drivers--usb--serial--qcserial.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-09-10 11:41:21,126 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b2efd388/a7f1ca2e3aba4cdba762039bbc15f650/FLAGabe2787f8 [2019-09-10 11:41:21,891 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 11:41:21,892 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-c0cc359-1-104_1a-drivers--usb--serial--qcserial.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-09-10 11:41:21,919 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b2efd388/a7f1ca2e3aba4cdba762039bbc15f650/FLAGabe2787f8 [2019-09-10 11:41:22,426 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b2efd388/a7f1ca2e3aba4cdba762039bbc15f650 [2019-09-10 11:41:22,441 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 11:41:22,443 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 11:41:22,444 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 11:41:22,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 11:41:22,449 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 11:41:22,450 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 11:41:22" (1/1) ... [2019-09-10 11:41:22,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ee8177c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:41:22, skipping insertion in model container [2019-09-10 11:41:22,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 11:41:22" (1/1) ... [2019-09-10 11:41:22,462 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 11:41:22,567 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 11:41:23,790 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 11:41:23,870 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 11:41:24,026 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 11:41:24,125 INFO L192 MainTranslator]: Completed translation [2019-09-10 11:41:24,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:41:24 WrapperNode [2019-09-10 11:41:24,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 11:41:24,127 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 11:41:24,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 11:41:24,128 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 11:41:24,142 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:41:24" (1/1) ... [2019-09-10 11:41:24,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:41:24" (1/1) ... [2019-09-10 11:41:24,193 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:41:24" (1/1) ... [2019-09-10 11:41:24,194 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:41:24" (1/1) ... [2019-09-10 11:41:24,289 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:41:24" (1/1) ... [2019-09-10 11:41:24,302 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:41:24" (1/1) ... [2019-09-10 11:41:24,317 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:41:24" (1/1) ... [2019-09-10 11:41:24,336 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 11:41:24,339 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 11:41:24,340 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 11:41:24,340 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 11:41:24,342 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:41:24" (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 11:41:24,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 11:41:24,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 11:41:24,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-09-10 11:41:24,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-09-10 11:41:24,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-09-10 11:41:24,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-09-10 11:41:24,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-09-10 11:41:24,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-09-10 11:41:24,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-09-10 11:41:24,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-09-10 11:41:24,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2019-09-10 11:41:24,428 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-09-10 11:41:24,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-09-10 11:41:24,428 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-09-10 11:41:24,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kzalloc_1 [2019-09-10 11:41:24,429 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2019-09-10 11:41:24,429 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2019-09-10 11:41:24,429 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2019-09-10 11:41:24,429 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_in [2019-09-10 11:41:24,430 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_out [2019-09-10 11:41:24,430 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2019-09-10 11:41:24,430 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_data [2019-09-10 11:41:24,430 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_serial_data [2019-09-10 11:41:24,431 INFO L138 BoogieDeclarations]: Found implementation of procedure qcprobe [2019-09-10 11:41:24,431 INFO L138 BoogieDeclarations]: Found implementation of procedure qc_release [2019-09-10 11:41:24,431 INFO L138 BoogieDeclarations]: Found implementation of procedure qcinit [2019-09-10 11:41:24,431 INFO L138 BoogieDeclarations]: Found implementation of procedure qcexit [2019-09-10 11:41:24,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_usb_serial_driver_1 [2019-09-10 11:41:24,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_2 [2019-09-10 11:41:24,432 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 11:41:24,432 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-09-10 11:41:24,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_2 [2019-09-10 11:41:24,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_interface_3 [2019-09-10 11:41:24,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_4 [2019-09-10 11:41:24,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_interface_5 [2019-09-10 11:41:24,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_interface_6 [2019-09-10 11:41:24,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_7 [2019-09-10 11:41:24,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_interface_8 [2019-09-10 11:41:24,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_9 [2019-09-10 11:41:24,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_10 [2019-09-10 11:41:24,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_11 [2019-09-10 11:41:24,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-09-10 11:41:24,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc [2019-09-10 11:41:24,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2019-09-10 11:41:24,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-10 11:41:24,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-09-10 11:41:24,435 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-09-10 11:41:24,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-10 11:41:24,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_reset_resume_2 [2019-09-10 11:41:24,435 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-09-10 11:41:24,436 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-09-10 11:41:24,436 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_enable_autosuspend [2019-09-10 11:41:24,436 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-09-10 11:41:24,436 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2019-09-10 11:41:24,436 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2019-09-10 11:41:24,437 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2019-09-10 11:41:24,437 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_register [2019-09-10 11:41:24,437 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_resume [2019-09-10 11:41:24,437 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_suspend [2019-09-10 11:41:24,437 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2019-09-10 11:41:24,437 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_chars_in_buffer [2019-09-10 11:41:24,438 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_close [2019-09-10 11:41:24,438 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_disconnect [2019-09-10 11:41:24,438 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_open [2019-09-10 11:41:24,438 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_release [2019-09-10 11:41:24,438 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_resume [2019-09-10 11:41:24,438 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_startup [2019-09-10 11:41:24,439 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_suspend [2019-09-10 11:41:24,439 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_write [2019-09-10 11:41:24,439 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_write_room [2019-09-10 11:41:24,439 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-10 11:41:24,439 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-10 11:41:24,440 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-09-10 11:41:24,440 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-09-10 11:41:24,440 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 11:41:24,440 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-09-10 11:41:24,440 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 11:41:24,441 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-10 11:41:24,441 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-09-10 11:41:24,441 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 11:41:24,441 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-09-10 11:41:24,441 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-10 11:41:24,442 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 11:41:24,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-09-10 11:41:24,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 11:41:24,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-09-10 11:41:24,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-09-10 11:41:24,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-09-10 11:41:24,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-09-10 11:41:24,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-09-10 11:41:24,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-09-10 11:41:24,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-09-10 11:41:24,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-09-10 11:41:24,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-09-10 11:41:24,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2019-09-10 11:41:24,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc [2019-09-10 11:41:24,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2019-09-10 11:41:24,444 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-09-10 11:41:24,445 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-09-10 11:41:24,445 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-10 11:41:24,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_4 [2019-09-10 11:41:24,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_7 [2019-09-10 11:41:24,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_9 [2019-09-10 11:41:24,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_10 [2019-09-10 11:41:24,446 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-09-10 11:41:24,446 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-09-10 11:41:24,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kzalloc_1 [2019-09-10 11:41:24,446 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-09-10 11:41:24,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_usb_serial_driver_1 [2019-09-10 11:41:24,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_2 [2019-09-10 11:41:24,447 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-09-10 11:41:24,447 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2019-09-10 11:41:24,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 11:41:24,447 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2019-09-10 11:41:24,447 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2019-09-10 11:41:24,448 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_in [2019-09-10 11:41:24,448 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_out [2019-09-10 11:41:24,448 INFO L130 BoogieDeclarations]: Found specification of procedure usb_enable_autosuspend [2019-09-10 11:41:24,448 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-09-10 11:41:24,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_2 [2019-09-10 11:41:24,448 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2019-09-10 11:41:24,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 11:41:24,449 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-09-10 11:41:24,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_11 [2019-09-10 11:41:24,449 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2019-09-10 11:41:24,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_interface_3 [2019-09-10 11:41:24,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_interface_5 [2019-09-10 11:41:24,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_interface_6 [2019-09-10 11:41:24,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_interface_8 [2019-09-10 11:41:24,450 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_data [2019-09-10 11:41:24,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 11:41:24,451 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_serial_data [2019-09-10 11:41:24,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 11:41:24,451 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_register [2019-09-10 11:41:24,451 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2019-09-10 11:41:24,451 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2019-09-10 11:41:24,451 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2019-09-10 11:41:24,452 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_suspend [2019-09-10 11:41:24,452 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_resume [2019-09-10 11:41:24,452 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_open [2019-09-10 11:41:24,452 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_close [2019-09-10 11:41:24,452 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_startup [2019-09-10 11:41:24,453 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_disconnect [2019-09-10 11:41:24,453 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_release [2019-09-10 11:41:24,453 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_write_room [2019-09-10 11:41:24,453 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_write [2019-09-10 11:41:24,453 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_chars_in_buffer [2019-09-10 11:41:24,453 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_suspend [2019-09-10 11:41:24,454 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_resume [2019-09-10 11:41:24,454 INFO L130 BoogieDeclarations]: Found specification of procedure qcprobe [2019-09-10 11:41:24,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 11:41:24,454 INFO L130 BoogieDeclarations]: Found specification of procedure qc_release [2019-09-10 11:41:24,454 INFO L130 BoogieDeclarations]: Found specification of procedure qcinit [2019-09-10 11:41:24,454 INFO L130 BoogieDeclarations]: Found specification of procedure qcexit [2019-09-10 11:41:24,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_reset_resume_2 [2019-09-10 11:41:24,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-10 11:41:24,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-10 11:41:24,455 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 11:41:24,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-09-10 11:41:24,455 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-10 11:41:24,456 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 11:41:24,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 11:41:24,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 11:41:24,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-10 11:41:24,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 11:41:24,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 11:41:25,615 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-09-10 11:41:26,726 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 11:41:26,726 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-10 11:41:26,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 11:41:26 BoogieIcfgContainer [2019-09-10 11:41:26,728 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 11:41:26,729 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 11:41:26,729 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 11:41:26,732 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 11:41:26,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 11:41:22" (1/3) ... [2019-09-10 11:41:26,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c10961e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 11:41:26, skipping insertion in model container [2019-09-10 11:41:26,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:41:24" (2/3) ... [2019-09-10 11:41:26,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c10961e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 11:41:26, skipping insertion in model container [2019-09-10 11:41:26,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 11:41:26" (3/3) ... [2019-09-10 11:41:26,736 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-c0cc359-1-104_1a-drivers--usb--serial--qcserial.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-09-10 11:41:26,746 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 11:41:26,756 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 11:41:26,774 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 11:41:26,802 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 11:41:26,803 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 11:41:26,803 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 11:41:26,803 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 11:41:26,803 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 11:41:26,804 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 11:41:26,804 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 11:41:26,804 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 11:41:26,833 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states. [2019-09-10 11:41:26,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-09-10 11:41:26,855 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:41:26,856 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:26,859 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:41:26,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:41:26,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1755182775, now seen corresponding path program 1 times [2019-09-10 11:41:26,868 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:41:26,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:41:26,946 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:41:26,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:41:26,947 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:41:27,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:41:27,720 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2019-09-10 11:41:27,722 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 11:41:27,723 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 11:41:27,723 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:41:27,729 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 11:41:27,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 11:41:27,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 11:41:27,747 INFO L87 Difference]: Start difference. First operand 537 states. Second operand 3 states. [2019-09-10 11:41:27,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:41:27,885 INFO L93 Difference]: Finished difference Result 1008 states and 1327 transitions. [2019-09-10 11:41:27,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 11:41:27,887 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 98 [2019-09-10 11:41:27,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:41:27,915 INFO L225 Difference]: With dead ends: 1008 [2019-09-10 11:41:27,915 INFO L226 Difference]: Without dead ends: 973 [2019-09-10 11:41:27,917 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 11:41:27,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 973 states. [2019-09-10 11:41:28,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 973 to 951. [2019-09-10 11:41:28,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 951 states. [2019-09-10 11:41:28,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1244 transitions. [2019-09-10 11:41:28,072 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1244 transitions. Word has length 98 [2019-09-10 11:41:28,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:41:28,073 INFO L475 AbstractCegarLoop]: Abstraction has 951 states and 1244 transitions. [2019-09-10 11:41:28,073 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 11:41:28,073 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1244 transitions. [2019-09-10 11:41:28,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2019-09-10 11:41:28,088 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:41:28,088 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-09-10 11:41:28,089 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:41:28,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:41:28,089 INFO L82 PathProgramCache]: Analyzing trace with hash 829756672, now seen corresponding path program 1 times [2019-09-10 11:41:28,090 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:41:28,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:41:28,094 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:41:28,094 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:41:28,094 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:41:28,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:41:28,500 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2019-09-10 11:41:28,500 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 11:41:28,500 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 11:41:28,501 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:41:28,503 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 11:41:28,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 11:41:28,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 11:41:28,504 INFO L87 Difference]: Start difference. First operand 951 states and 1244 transitions. Second operand 3 states. [2019-09-10 11:41:28,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:41:28,781 INFO L93 Difference]: Finished difference Result 1186 states and 1535 transitions. [2019-09-10 11:41:28,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 11:41:28,782 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 141 [2019-09-10 11:41:28,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:41:28,799 INFO L225 Difference]: With dead ends: 1186 [2019-09-10 11:41:28,799 INFO L226 Difference]: Without dead ends: 1186 [2019-09-10 11:41:28,800 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 11:41:28,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1186 states. [2019-09-10 11:41:28,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1186 to 1180. [2019-09-10 11:41:28,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1180 states. [2019-09-10 11:41:28,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 1530 transitions. [2019-09-10 11:41:28,883 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 1530 transitions. Word has length 141 [2019-09-10 11:41:28,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:41:28,885 INFO L475 AbstractCegarLoop]: Abstraction has 1180 states and 1530 transitions. [2019-09-10 11:41:28,885 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 11:41:28,885 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 1530 transitions. [2019-09-10 11:41:28,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-09-10 11:41:28,899 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:41:28,900 INFO L399 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 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] [2019-09-10 11:41:28,900 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:41:28,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:41:28,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1147496554, now seen corresponding path program 1 times [2019-09-10 11:41:28,908 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:41:28,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:41:28,912 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:41:28,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:41:28,912 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:41:29,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:41:29,285 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2019-09-10 11:41:29,285 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 11:41:29,285 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 11:41:29,287 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 199 with the following transitions: [2019-09-10 11:41:29,289 INFO L207 CegarAbsIntRunner]: [27], [29], [31], [33], [36], [38], [40], [42], [45], [48], [69], [88], [107], [128], [161], [194], [247], [250], [253], [255], [397], [400], [403], [415], [418], [421], [423], [426], [428], [431], [589], [592], [593], [595], [597], [599], [600], [611], [612], [618], [619], [625], [626], [667], [669], [672], [679], [888], [889], [896], [897], [898], [899], [911], [957], [959], [962], [972], [983], [989], [990], [993], [994], [997], [999], [1000], [1003], [1004], [1005], [1006], [1009], [1030], [1032], [1033], [1048], [1049], [1050], [1051], [1052], [1053], [1054], [1055], [1056], [1057], [1058], [1059], [1060], [1061], [1094], [1095], [1124], [1125], [1126], [1127], [1146], [1156], [1157], [1158], [1159], [1160], [1161], [1162], [1163], [1164], [1165], [1190], [1191], [1192], [1193], [1194], [1195], [1196], [1197], [1250], [1251], [1258], [1259], [1260], [1264], [1265], [1266], [1268], [1269] [2019-09-10 11:41:29,374 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 11:41:29,374 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 11:41:29,492 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 11:41:29,494 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 126 root evaluator evaluations with a maximum evaluation depth of 0. Performed 126 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 248 variables. [2019-09-10 11:41:29,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:41:29,499 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 11:41:29,633 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 11:41:29,633 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 11:41:29,641 INFO L420 sIntCurrentIteration]: We unified 197 AI predicates to 197 [2019-09-10 11:41:29,641 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 11:41:29,642 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 11:41:29,642 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2019-09-10 11:41:29,642 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:41:29,644 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 11:41:29,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 11:41:29,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 11:41:29,645 INFO L87 Difference]: Start difference. First operand 1180 states and 1530 transitions. Second operand 2 states. [2019-09-10 11:41:29,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:41:29,645 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 11:41:29,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 11:41:29,646 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 198 [2019-09-10 11:41:29,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:41:29,646 INFO L225 Difference]: With dead ends: 2 [2019-09-10 11:41:29,646 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 11:41:29,647 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 197 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 11:41:29,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 11:41:29,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 11:41:29,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 11:41:29,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 11:41:29,648 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 198 [2019-09-10 11:41:29,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:41:29,648 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 11:41:29,648 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 11:41:29,648 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 11:41:29,649 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 11:41:29,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 11:41:29 BoogieIcfgContainer [2019-09-10 11:41:29,655 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 11:41:29,658 INFO L168 Benchmark]: Toolchain (without parser) took 7214.26 ms. Allocated memory was 132.6 MB in the beginning and 389.0 MB in the end (delta: 256.4 MB). Free memory was 81.5 MB in the beginning and 119.8 MB in the end (delta: -38.4 MB). Peak memory consumption was 218.0 MB. Max. memory is 7.1 GB. [2019-09-10 11:41:29,660 INFO L168 Benchmark]: CDTParser took 1.10 ms. Allocated memory is still 132.6 MB. Free memory was 106.0 MB in the beginning and 105.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-09-10 11:41:29,662 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1682.31 ms. Allocated memory was 132.6 MB in the beginning and 211.8 MB in the end (delta: 79.2 MB). Free memory was 81.0 MB in the beginning and 120.6 MB in the end (delta: -39.5 MB). Peak memory consumption was 46.7 MB. Max. memory is 7.1 GB. [2019-09-10 11:41:29,664 INFO L168 Benchmark]: Boogie Preprocessor took 209.62 ms. Allocated memory is still 211.8 MB. Free memory was 120.6 MB in the beginning and 107.6 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. [2019-09-10 11:41:29,665 INFO L168 Benchmark]: RCFGBuilder took 2388.82 ms. Allocated memory was 211.8 MB in the beginning and 276.3 MB in the end (delta: 64.5 MB). Free memory was 107.6 MB in the beginning and 169.7 MB in the end (delta: -62.1 MB). Peak memory consumption was 108.4 MB. Max. memory is 7.1 GB. [2019-09-10 11:41:29,666 INFO L168 Benchmark]: TraceAbstraction took 2926.30 ms. Allocated memory was 276.3 MB in the beginning and 389.0 MB in the end (delta: 112.7 MB). Free memory was 169.7 MB in the beginning and 119.8 MB in the end (delta: 49.9 MB). Peak memory consumption was 162.6 MB. Max. memory is 7.1 GB. [2019-09-10 11:41:29,678 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.10 ms. Allocated memory is still 132.6 MB. Free memory was 106.0 MB in the beginning and 105.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1682.31 ms. Allocated memory was 132.6 MB in the beginning and 211.8 MB in the end (delta: 79.2 MB). Free memory was 81.0 MB in the beginning and 120.6 MB in the end (delta: -39.5 MB). Peak memory consumption was 46.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 209.62 ms. Allocated memory is still 211.8 MB. Free memory was 120.6 MB in the beginning and 107.6 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2388.82 ms. Allocated memory was 211.8 MB in the beginning and 276.3 MB in the end (delta: 64.5 MB). Free memory was 107.6 MB in the beginning and 169.7 MB in the end (delta: -62.1 MB). Peak memory consumption was 108.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2926.30 ms. Allocated memory was 276.3 MB in the beginning and 389.0 MB in the end (delta: 112.7 MB). Free memory was 169.7 MB in the beginning and 119.8 MB in the end (delta: 49.9 MB). Peak memory consumption was 162.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4439]: 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 74 procedures, 556 locations, 1 error locations. SAFE Result, 2.8s OverallTime, 3 OverallIterations, 6 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1497 SDtfs, 822 SDslu, 1202 SDs, 0 SdLazy, 96 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 204 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1180occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 2.2588832487309647 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 28 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 437 NumberOfCodeBlocks, 437 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 434 ConstructedInterpolants, 0 QuantifiedInterpolants, 76648 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 293/295 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...