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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 12:13:26,435 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 12:13:26,437 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 12:13:26,449 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 12:13:26,450 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 12:13:26,451 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 12:13:26,452 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 12:13:26,454 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 12:13:26,455 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 12:13:26,456 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 12:13:26,457 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 12:13:26,458 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 12:13:26,459 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 12:13:26,460 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 12:13:26,461 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 12:13:26,462 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 12:13:26,463 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 12:13:26,464 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 12:13:26,465 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 12:13:26,468 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 12:13:26,470 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 12:13:26,471 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 12:13:26,472 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 12:13:26,473 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 12:13:26,475 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 12:13:26,475 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 12:13:26,476 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 12:13:26,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 12:13:26,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 12:13:26,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 12:13:26,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 12:13:26,479 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 12:13:26,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 12:13:26,480 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 12:13:26,481 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 12:13:26,481 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 12:13:26,482 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 12:13:26,482 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 12:13:26,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 12:13:26,483 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 12:13:26,484 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 12:13:26,485 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 12:13:26,500 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 12:13:26,500 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 12:13:26,501 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 12:13:26,501 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 12:13:26,501 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 12:13:26,502 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 12:13:26,502 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 12:13:26,502 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 12:13:26,502 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 12:13:26,502 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 12:13:26,503 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 12:13:26,503 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 12:13:26,504 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 12:13:26,504 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 12:13:26,504 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 12:13:26,504 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 12:13:26,504 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 12:13:26,504 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 12:13:26,505 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 12:13:26,505 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 12:13:26,505 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 12:13:26,505 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 12:13:26,506 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 12:13:26,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 12:13:26,506 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 12:13:26,506 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 12:13:26,506 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 12:13:26,507 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 12:13:26,507 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 12:13:26,507 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 12:13:26,536 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 12:13:26,549 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 12:13:26,552 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 12:13:26,554 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 12:13:26,554 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 12:13:26,555 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i [2019-09-10 12:13:26,618 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/691edc302/74b4c31d180e4010b00a3fa48fe2d69e/FLAG24125c72e [2019-09-10 12:13:27,369 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 12:13:27,370 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i [2019-09-10 12:13:27,412 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/691edc302/74b4c31d180e4010b00a3fa48fe2d69e/FLAG24125c72e [2019-09-10 12:13:27,439 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/691edc302/74b4c31d180e4010b00a3fa48fe2d69e [2019-09-10 12:13:27,449 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 12:13:27,450 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 12:13:27,451 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 12:13:27,451 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 12:13:27,455 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 12:13:27,456 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 12:13:27" (1/1) ... [2019-09-10 12:13:27,459 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6aee0ef3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:13:27, skipping insertion in model container [2019-09-10 12:13:27,459 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 12:13:27" (1/1) ... [2019-09-10 12:13:27,467 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 12:13:27,555 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 12:13:28,612 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 12:13:28,636 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 12:13:28,800 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 12:13:28,875 INFO L192 MainTranslator]: Completed translation [2019-09-10 12:13:28,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:13:28 WrapperNode [2019-09-10 12:13:28,876 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 12:13:28,877 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 12:13:28,877 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 12:13:28,877 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 12:13:28,900 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:13:28" (1/1) ... [2019-09-10 12:13:28,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:13:28" (1/1) ... [2019-09-10 12:13:28,962 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:13:28" (1/1) ... [2019-09-10 12:13:28,963 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:13:28" (1/1) ... [2019-09-10 12:13:29,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:13:28" (1/1) ... [2019-09-10 12:13:29,061 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:13:28" (1/1) ... [2019-09-10 12:13:29,085 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:13:28" (1/1) ... [2019-09-10 12:13:29,106 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 12:13:29,107 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 12:13:29,107 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 12:13:29,108 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 12:13:29,109 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:13:28" (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 12:13:29,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 12:13:29,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 12:13:29,209 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-09-10 12:13:29,210 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2019-09-10 12:13:29,210 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2019-09-10 12:13:29,210 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2019-09-10 12:13:29,210 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-09-10 12:13:29,211 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2019-09-10 12:13:29,212 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2019-09-10 12:13:29,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-09-10 12:13:29,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-09-10 12:13:29,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-09-10 12:13:29,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-09-10 12:13:29,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-09-10 12:13:29,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-09-10 12:13:29,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-09-10 12:13:29,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-09-10 12:13:29,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-09-10 12:13:29,216 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-09-10 12:13:29,216 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_enter [2019-09-10 12:13:29,217 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_exit [2019-09-10 12:13:29,217 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_select [2019-09-10 12:13:29,217 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_inb [2019-09-10 12:13:29,217 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_outb [2019-09-10 12:13:29,218 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_inw [2019-09-10 12:13:29,218 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_outw [2019-09-10 12:13:29,218 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_update_timeout [2019-09-10 12:13:29,218 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_round_time [2019-09-10 12:13:29,219 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_keepalive [2019-09-10 12:13:29,219 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_start [2019-09-10 12:13:29,219 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_stop [2019-09-10 12:13:29,219 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_set_timeout [2019-09-10 12:13:29,220 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_get_status [2019-09-10 12:13:29,220 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_open [2019-09-10 12:13:29,220 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_release [2019-09-10 12:13:29,220 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_write [2019-09-10 12:13:29,220 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_ioctl [2019-09-10 12:13:29,221 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_notify_sys [2019-09-10 12:13:29,221 INFO L138 BoogieDeclarations]: Found implementation of procedure it87_wdt_init [2019-09-10 12:13:29,221 INFO L138 BoogieDeclarations]: Found implementation of procedure it87_wdt_exit [2019-09-10 12:13:29,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_2 [2019-09-10 12:13:29,222 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 12:13:29,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___module_get_5 [2019-09-10 12:13:29,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonseekable_open_6 [2019-09-10 12:13:29,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_register_7 [2019-09-10 12:13:29,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_deregister_8 [2019-09-10 12:13:29,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-09-10 12:13:29,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-09-10 12:13:29,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-09-10 12:13:29,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-09-10 12:13:29,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-09-10 12:13:29,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2019-09-10 12:13:29,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2019-09-10 12:13:29,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2019-09-10 12:13:29,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2019-09-10 12:13:29,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2019-09-10 12:13:29,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-10 12:13:29,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2019-09-10 12:13:29,228 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2019-09-10 12:13:29,228 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2019-09-10 12:13:29,228 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2019-09-10 12:13:29,228 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-09-10 12:13:29,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-10 12:13:29,229 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2019-09-10 12:13:29,230 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_register [2019-09-10 12:13:29,230 INFO L138 BoogieDeclarations]: Found implementation of procedure no_llseek [2019-09-10 12:13:29,230 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-09-10 12:13:29,230 INFO L138 BoogieDeclarations]: Found implementation of procedure register_reboot_notifier [2019-09-10 12:13:29,231 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_reboot_notifier [2019-09-10 12:13:29,231 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-10 12:13:29,231 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-10 12:13:29,231 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-09-10 12:13:29,232 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-09-10 12:13:29,233 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 12:13:29,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-09-10 12:13:29,233 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-09-10 12:13:29,233 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2019-09-10 12:13:29,234 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2019-09-10 12:13:29,234 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2019-09-10 12:13:29,234 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-09-10 12:13:29,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 12:13:29,235 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-09-10 12:13:29,235 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2019-09-10 12:13:29,236 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-09-10 12:13:29,236 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2019-09-10 12:13:29,237 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2019-09-10 12:13:29,238 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2019-09-10 12:13:29,239 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2019-09-10 12:13:29,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___module_get_5 [2019-09-10 12:13:29,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2019-09-10 12:13:29,240 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 12:13:29,240 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-10 12:13:29,240 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 12:13:29,241 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-09-10 12:13:29,241 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-10 12:13:29,241 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 12:13:29,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-09-10 12:13:29,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 12:13:29,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-09-10 12:13:29,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-09-10 12:13:29,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-09-10 12:13:29,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-09-10 12:13:29,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-09-10 12:13:29,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-09-10 12:13:29,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-09-10 12:13:29,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-09-10 12:13:29,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-09-10 12:13:29,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_2 [2019-09-10 12:13:29,245 INFO L130 BoogieDeclarations]: Found specification of procedure no_llseek [2019-09-10 12:13:29,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonseekable_open_6 [2019-09-10 12:13:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure misc_register [2019-09-10 12:13:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_register_7 [2019-09-10 12:13:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2019-09-10 12:13:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_deregister_8 [2019-09-10 12:13:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure register_reboot_notifier [2019-09-10 12:13:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_reboot_notifier [2019-09-10 12:13:29,248 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-09-10 12:13:29,249 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2019-09-10 12:13:29,249 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-09-10 12:13:29,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 12:13:29,250 INFO L130 BoogieDeclarations]: Found specification of procedure superio_enter [2019-09-10 12:13:29,250 INFO L130 BoogieDeclarations]: Found specification of procedure superio_exit [2019-09-10 12:13:29,251 INFO L130 BoogieDeclarations]: Found specification of procedure superio_select [2019-09-10 12:13:29,252 INFO L130 BoogieDeclarations]: Found specification of procedure superio_inb [2019-09-10 12:13:29,252 INFO L130 BoogieDeclarations]: Found specification of procedure superio_outb [2019-09-10 12:13:29,253 INFO L130 BoogieDeclarations]: Found specification of procedure superio_inw [2019-09-10 12:13:29,253 INFO L130 BoogieDeclarations]: Found specification of procedure superio_outw [2019-09-10 12:13:29,253 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_update_timeout [2019-09-10 12:13:29,253 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_round_time [2019-09-10 12:13:29,254 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_keepalive [2019-09-10 12:13:29,254 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_start [2019-09-10 12:13:29,255 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_stop [2019-09-10 12:13:29,255 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_set_timeout [2019-09-10 12:13:29,255 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_get_status [2019-09-10 12:13:29,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 12:13:29,256 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_open [2019-09-10 12:13:29,256 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_release [2019-09-10 12:13:29,257 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_write [2019-09-10 12:13:29,258 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_ioctl [2019-09-10 12:13:29,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 12:13:29,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 12:13:29,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 12:13:29,263 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_notify_sys [2019-09-10 12:13:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure it87_wdt_init [2019-09-10 12:13:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure it87_wdt_exit [2019-09-10 12:13:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-10 12:13:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-10 12:13:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 12:13:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-09-10 12:13:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-09-10 12:13:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-09-10 12:13:29,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-09-10 12:13:29,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-09-10 12:13:29,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2019-09-10 12:13:29,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2019-09-10 12:13:29,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2019-09-10 12:13:29,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2019-09-10 12:13:29,274 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-10 12:13:29,274 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-09-10 12:13:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 12:13:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-10 12:13:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 12:13:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 12:13:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-10 12:13:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 12:13:30,702 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-09-10 12:13:30,717 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2019-09-10 12:13:31,579 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 12:13:31,579 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-10 12:13:31,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 12:13:31 BoogieIcfgContainer [2019-09-10 12:13:31,582 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 12:13:31,583 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 12:13:31,584 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 12:13:31,588 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 12:13:31,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 12:13:27" (1/3) ... [2019-09-10 12:13:31,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d04a329 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 12:13:31, skipping insertion in model container [2019-09-10 12:13:31,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:13:28" (2/3) ... [2019-09-10 12:13:31,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d04a329 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 12:13:31, skipping insertion in model container [2019-09-10 12:13:31,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 12:13:31" (3/3) ... [2019-09-10 12:13:31,592 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i [2019-09-10 12:13:31,604 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 12:13:31,619 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 12:13:31,641 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 12:13:31,671 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 12:13:31,671 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 12:13:31,672 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 12:13:31,672 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 12:13:31,672 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 12:13:31,672 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 12:13:31,672 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 12:13:31,672 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 12:13:31,713 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states. [2019-09-10 12:13:31,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-09-10 12:13:31,764 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 12:13:31,768 INFO L399 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:13:31,772 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 12:13:31,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 12:13:31,779 INFO L82 PathProgramCache]: Analyzing trace with hash 588834209, now seen corresponding path program 1 times [2019-09-10 12:13:31,781 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 12:13:31,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:13:31,857 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 12:13:31,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:13:31,858 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 12:13:32,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 12:13:32,491 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2019-09-10 12:13:32,494 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 12:13:32,494 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 12:13:32,494 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 12:13:32,502 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 12:13:32,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 12:13:32,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 12:13:32,521 INFO L87 Difference]: Start difference. First operand 666 states. Second operand 3 states. [2019-09-10 12:13:32,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 12:13:32,638 INFO L93 Difference]: Finished difference Result 670 states and 958 transitions. [2019-09-10 12:13:32,638 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 12:13:32,640 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2019-09-10 12:13:32,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 12:13:32,665 INFO L225 Difference]: With dead ends: 670 [2019-09-10 12:13:32,666 INFO L226 Difference]: Without dead ends: 651 [2019-09-10 12:13:32,668 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 12:13:32,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2019-09-10 12:13:32,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 646. [2019-09-10 12:13:32,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 646 states. [2019-09-10 12:13:32,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 931 transitions. [2019-09-10 12:13:32,820 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 931 transitions. Word has length 154 [2019-09-10 12:13:32,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 12:13:32,823 INFO L475 AbstractCegarLoop]: Abstraction has 646 states and 931 transitions. [2019-09-10 12:13:32,823 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 12:13:32,823 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 931 transitions. [2019-09-10 12:13:32,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-09-10 12:13:32,833 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 12:13:32,834 INFO L399 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:13:32,834 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 12:13:32,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 12:13:32,835 INFO L82 PathProgramCache]: Analyzing trace with hash 646092511, now seen corresponding path program 1 times [2019-09-10 12:13:32,835 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 12:13:32,839 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:13:32,839 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 12:13:32,839 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:13:32,840 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 12:13:32,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 12:13:33,166 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2019-09-10 12:13:33,166 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 12:13:33,166 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 12:13:33,167 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 12:13:33,169 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 12:13:33,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 12:13:33,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 12:13:33,172 INFO L87 Difference]: Start difference. First operand 646 states and 931 transitions. Second operand 3 states. [2019-09-10 12:13:33,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 12:13:33,251 INFO L93 Difference]: Finished difference Result 1251 states and 1814 transitions. [2019-09-10 12:13:33,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 12:13:33,252 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2019-09-10 12:13:33,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 12:13:33,269 INFO L225 Difference]: With dead ends: 1251 [2019-09-10 12:13:33,269 INFO L226 Difference]: Without dead ends: 1204 [2019-09-10 12:13:33,270 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 12:13:33,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1204 states. [2019-09-10 12:13:33,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1204 to 1203. [2019-09-10 12:13:33,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1203 states. [2019-09-10 12:13:33,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1203 states to 1203 states and 1741 transitions. [2019-09-10 12:13:33,355 INFO L78 Accepts]: Start accepts. Automaton has 1203 states and 1741 transitions. Word has length 154 [2019-09-10 12:13:33,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 12:13:33,358 INFO L475 AbstractCegarLoop]: Abstraction has 1203 states and 1741 transitions. [2019-09-10 12:13:33,358 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 12:13:33,359 INFO L276 IsEmpty]: Start isEmpty. Operand 1203 states and 1741 transitions. [2019-09-10 12:13:33,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2019-09-10 12:13:33,374 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 12:13:33,374 INFO L399 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2019-09-10 12:13:33,375 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 12:13:33,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 12:13:33,375 INFO L82 PathProgramCache]: Analyzing trace with hash 1252206387, now seen corresponding path program 1 times [2019-09-10 12:13:33,375 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 12:13:33,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:13:33,378 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 12:13:33,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:13:33,378 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 12:13:33,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 12:13:33,833 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2019-09-10 12:13:33,833 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 12:13:33,833 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 12:13:33,834 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 12:13:33,834 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 12:13:33,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 12:13:33,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 12:13:33,839 INFO L87 Difference]: Start difference. First operand 1203 states and 1741 transitions. Second operand 3 states. [2019-09-10 12:13:33,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 12:13:33,953 INFO L93 Difference]: Finished difference Result 1694 states and 2443 transitions. [2019-09-10 12:13:33,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 12:13:33,954 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 221 [2019-09-10 12:13:33,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 12:13:33,969 INFO L225 Difference]: With dead ends: 1694 [2019-09-10 12:13:33,969 INFO L226 Difference]: Without dead ends: 1694 [2019-09-10 12:13:33,970 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 12:13:33,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2019-09-10 12:13:34,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 1668. [2019-09-10 12:13:34,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1668 states. [2019-09-10 12:13:34,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1668 states to 1668 states and 2415 transitions. [2019-09-10 12:13:34,066 INFO L78 Accepts]: Start accepts. Automaton has 1668 states and 2415 transitions. Word has length 221 [2019-09-10 12:13:34,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 12:13:34,068 INFO L475 AbstractCegarLoop]: Abstraction has 1668 states and 2415 transitions. [2019-09-10 12:13:34,068 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 12:13:34,068 INFO L276 IsEmpty]: Start isEmpty. Operand 1668 states and 2415 transitions. [2019-09-10 12:13:34,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2019-09-10 12:13:34,083 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 12:13:34,084 INFO L399 BasicCegarLoop]: trace histogram [13, 13, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 12:13:34,084 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 12:13:34,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 12:13:34,085 INFO L82 PathProgramCache]: Analyzing trace with hash 1161222094, now seen corresponding path program 1 times [2019-09-10 12:13:34,085 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 12:13:34,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:13:34,089 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 12:13:34,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:13:34,089 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 12:13:34,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 12:13:34,717 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 620 trivial. 0 not checked. [2019-09-10 12:13:34,717 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 12:13:34,718 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 12:13:34,719 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 431 with the following transitions: [2019-09-10 12:13:34,722 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [7], [83], [85], [87], [89], [91], [94], [96], [98], [100], [102], [104], [106], [139], [142], [145], [157], [160], [163], [165], [168], [170], [174], [176], [195], [198], [201], [222], [235], [248], [251], [254], [256], [259], [610], [611], [617], [618], [619], [620], [626], [627], [660], [661], [664], [666], [668], [669], [736], [737], [738], [740], [749], [750], [767], [778], [781], [784], [787], [789], [792], [801], [809], [814], [815], [819], [820], [821], [822], [825], [829], [852], [854], [856], [857], [875], [878], [880], [883], [884], [886], [888], [890], [893], [969], [973], [1003], [1046], [1050], [1060], [1063], [1068], [1070], [1075], [1077], [1089], [1091], [1093], [1126], [1127], [1129], [1132], [1155], [1156], [1159], [1164], [1165], [1171], [1172], [1175], [1181], [1182], [1185], [1187], [1190], [1197], [1198], [1200], [1201], [1232], [1234], [1235], [1236], [1239], [1240], [1273], [1274], [1277], [1280], [1283], [1300], [1301], [1313], [1315], [1316], [1321], [1322], [1323], [1324], [1325], [1326], [1327], [1328], [1367], [1368], [1369], [1370], [1371], [1372], [1373], [1374], [1375], [1376], [1377], [1378], [1379], [1380], [1381], [1382], [1383], [1384], [1385], [1386], [1387], [1388], [1395], [1396], [1407], [1408], [1415], [1481], [1482], [1483], [1484], [1523], [1524], [1529], [1530], [1531], [1532], [1533], [1534], [1535], [1536], [1543], [1544], [1545], [1546], [1547], [1548], [1549], [1550], [1553], [1554], [1555], [1556], [1565], [1566], [1567], [1568], [1569], [1570], [1571], [1572], [1573], [1574], [1575], [1576], [1577], [1578], [1579], [1580], [1617], [1618], [1619], [1620], [1621], [1622], [1637], [1638], [1659], [1660], [1675], [1676], [1677], [1678], [1679], [1680], [1689], [1690], [1709], [1710], [1711], [1712], [1713], [1714], [1727], [1728], [1729], [1730], [1731], [1737], [1738], [1739], [1741], [1742] [2019-09-10 12:13:34,796 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 12:13:34,796 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 12:13:34,924 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 12:13:34,926 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 99 root evaluator evaluations with a maximum evaluation depth of 0. Performed 99 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 186 variables. [2019-09-10 12:13:34,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 12:13:34,932 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 12:13:35,152 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 12:13:35,152 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 12:13:35,169 INFO L420 sIntCurrentIteration]: We unified 429 AI predicates to 429 [2019-09-10 12:13:35,170 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 12:13:35,171 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 12:13:35,171 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2019-09-10 12:13:35,171 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 12:13:35,173 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 12:13:35,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 12:13:35,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 12:13:35,173 INFO L87 Difference]: Start difference. First operand 1668 states and 2415 transitions. Second operand 2 states. [2019-09-10 12:13:35,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 12:13:35,174 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 12:13:35,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 12:13:35,174 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 430 [2019-09-10 12:13:35,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 12:13:35,174 INFO L225 Difference]: With dead ends: 2 [2019-09-10 12:13:35,174 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 12:13:35,175 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 429 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 12:13:35,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 12:13:35,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 12:13:35,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 12:13:35,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 12:13:35,176 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 430 [2019-09-10 12:13:35,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 12:13:35,176 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 12:13:35,176 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 12:13:35,177 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 12:13:35,177 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 12:13:35,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 12:13:35 BoogieIcfgContainer [2019-09-10 12:13:35,183 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 12:13:35,186 INFO L168 Benchmark]: Toolchain (without parser) took 7734.23 ms. Allocated memory was 134.7 MB in the beginning and 342.4 MB in the end (delta: 207.6 MB). Free memory was 85.6 MB in the beginning and 137.2 MB in the end (delta: -51.6 MB). Peak memory consumption was 156.0 MB. Max. memory is 7.1 GB. [2019-09-10 12:13:35,187 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 134.7 MB. Free memory is still 108.9 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 12:13:35,189 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1425.08 ms. Allocated memory was 134.7 MB in the beginning and 206.0 MB in the end (delta: 71.3 MB). Free memory was 85.1 MB in the beginning and 121.2 MB in the end (delta: -36.1 MB). Peak memory consumption was 40.5 MB. Max. memory is 7.1 GB. [2019-09-10 12:13:35,191 INFO L168 Benchmark]: Boogie Preprocessor took 229.99 ms. Allocated memory is still 206.0 MB. Free memory was 121.2 MB in the beginning and 114.2 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 7.1 GB. [2019-09-10 12:13:35,192 INFO L168 Benchmark]: RCFGBuilder took 2474.91 ms. Allocated memory was 206.0 MB in the beginning and 271.1 MB in the end (delta: 65.0 MB). Free memory was 114.2 MB in the beginning and 193.1 MB in the end (delta: -79.0 MB). Peak memory consumption was 77.3 MB. Max. memory is 7.1 GB. [2019-09-10 12:13:35,193 INFO L168 Benchmark]: TraceAbstraction took 3599.31 ms. Allocated memory was 271.1 MB in the beginning and 342.4 MB in the end (delta: 71.3 MB). Free memory was 193.1 MB in the beginning and 137.2 MB in the end (delta: 55.9 MB). Peak memory consumption was 127.2 MB. Max. memory is 7.1 GB. [2019-09-10 12:13:35,204 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 134.7 MB. Free memory is still 108.9 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1425.08 ms. Allocated memory was 134.7 MB in the beginning and 206.0 MB in the end (delta: 71.3 MB). Free memory was 85.1 MB in the beginning and 121.2 MB in the end (delta: -36.1 MB). Peak memory consumption was 40.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 229.99 ms. Allocated memory is still 206.0 MB. Free memory was 121.2 MB in the beginning and 114.2 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2474.91 ms. Allocated memory was 206.0 MB in the beginning and 271.1 MB in the end (delta: 65.0 MB). Free memory was 114.2 MB in the beginning and 193.1 MB in the end (delta: -79.0 MB). Peak memory consumption was 77.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3599.31 ms. Allocated memory was 271.1 MB in the beginning and 342.4 MB in the end (delta: 71.3 MB). Free memory was 193.1 MB in the beginning and 137.2 MB in the end (delta: 55.9 MB). Peak memory consumption was 127.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4333]: 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 73 procedures, 722 locations, 1 error locations. SAFE Result, 3.5s OverallTime, 4 OverallIterations, 13 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3156 SDtfs, 2270 SDslu, 1736 SDs, 0 SdLazy, 28 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 439 GetRequests, 436 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1668occurred in iteration=3, 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, 1.916083916083916 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 32 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 959 NumberOfCodeBlocks, 959 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 955 ConstructedInterpolants, 0 QuantifiedInterpolants, 394637 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 1218/1223 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...