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-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:25:12,227 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:25:12,229 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:25:12,248 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:25:12,248 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:25:12,252 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:25:12,254 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:25:12,256 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:25:12,259 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:25:12,260 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:25:12,261 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:25:12,263 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:25:12,263 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:25:12,264 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:25:12,266 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:25:12,267 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:25:12,268 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:25:12,270 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:25:12,272 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:25:12,275 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:25:12,277 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:25:12,278 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:25:12,280 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:25:12,285 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:25:12,288 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:25:12,288 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:25:12,288 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:25:12,289 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:25:12,290 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:25:12,294 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:25:12,295 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:25:12,299 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:25:12,300 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:25:12,302 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:25:12,303 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:25:12,303 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:25:12,304 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:25:12,305 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:25:12,305 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:25:12,308 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:25:12,309 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:25:12,313 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 [2019-10-03 02:25:12,349 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:25:12,349 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:25:12,350 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:25:12,351 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:25:12,352 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:25:12,352 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:25:12,352 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:25:12,353 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:25:12,353 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:25:12,353 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:25:12,356 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:25:12,357 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:25:12,357 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:25:12,358 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:25:12,358 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:25:12,358 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:25:12,358 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:25:12,358 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:25:12,359 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:25:12,359 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:25:12,359 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:25:12,360 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:25:12,360 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:25:12,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:25:12,361 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:25:12,361 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:25:12,361 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:25:12,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:25:12,361 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:25:12,362 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:25:12,401 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:25:12,417 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:25:12,421 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:25:12,423 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:25:12,424 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:25:12,425 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2019-10-03 02:25:12,510 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e2d1f6c6/6a4b903bd31a47ac8549ac4861a2e15a/FLAG30c9951bd [2019-10-03 02:25:13,383 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:25:13,384 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2019-10-03 02:25:13,438 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e2d1f6c6/6a4b903bd31a47ac8549ac4861a2e15a/FLAG30c9951bd [2019-10-03 02:25:13,950 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e2d1f6c6/6a4b903bd31a47ac8549ac4861a2e15a [2019-10-03 02:25:13,962 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:25:13,965 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:25:13,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:25:13,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:25:13,971 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:25:13,972 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:25:13" (1/1) ... [2019-10-03 02:25:13,977 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3030c171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:25:13, skipping insertion in model container [2019-10-03 02:25:13,977 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:25:13" (1/1) ... [2019-10-03 02:25:13,985 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:25:14,073 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:25:15,493 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:25:15,531 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:25:15,807 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:25:15,961 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:25:15,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:25:15 WrapperNode [2019-10-03 02:25:15,963 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:25:15,964 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:25:15,965 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:25:15,965 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:25:15,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:25:15" (1/1) ... [2019-10-03 02:25:15,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:25:15" (1/1) ... [2019-10-03 02:25:16,083 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:25:15" (1/1) ... [2019-10-03 02:25:16,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:25:15" (1/1) ... [2019-10-03 02:25:16,222 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:25:15" (1/1) ... [2019-10-03 02:25:16,253 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:25:15" (1/1) ... [2019-10-03 02:25:16,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:25:15" (1/1) ... [2019-10-03 02:25:16,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:25:16,323 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:25:16,324 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:25:16,324 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:25:16,326 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:25:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:25:16,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:25:16,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:25:16,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2019-10-03 02:25:16,465 INFO L138 BoogieDeclarations]: Found implementation of procedure outer_sync [2019-10-03 02:25:16,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_9 [2019-10-03 02:25:16,466 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2019-10-03 02:25:16,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-03 02:25:16,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-03 02:25:16,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-03 02:25:16,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-03 02:25:16,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-03 02:25:16,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-03 02:25:16,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-03 02:25:16,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-03 02:25:16,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-03 02:25:16,473 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2019-10-03 02:25:16,473 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq_wake [2019-10-03 02:25:16,473 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq_wake [2019-10-03 02:25:16,474 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2019-10-03 02:25:16,474 INFO L138 BoogieDeclarations]: Found implementation of procedure device_may_wakeup [2019-10-03 02:25:16,474 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2019-10-03 02:25:16,475 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2019-10-03 02:25:16,475 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2019-10-03 02:25:16,475 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_check_busy [2019-10-03 02:25:16,476 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_wait_while_busy [2019-10-03 02:25:16,477 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_read_time [2019-10-03 02:25:16,479 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_set_time [2019-10-03 02:25:16,479 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_read_alarm [2019-10-03 02:25:16,480 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_alarm_irq_enable [2019-10-03 02:25:16,480 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_set_alarm [2019-10-03 02:25:16,480 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_proc [2019-10-03 02:25:16,480 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_irq_handler [2019-10-03 02:25:16,481 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_probe [2019-10-03 02:25:16,481 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_remove [2019-10-03 02:25:16,481 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_suspend [2019-10-03 02:25:16,481 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_resume [2019-10-03 02:25:16,482 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_shutdown [2019-10-03 02:25:16,482 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_init [2019-10-03 02:25:16,482 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_exit [2019-10-03 02:25:16,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2019-10-03 02:25:16,483 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2019-10-03 02:25:16,483 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2019-10-03 02:25:16,483 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2019-10-03 02:25:16,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_rtc_class_ops_3 [2019-10-03 02:25:16,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_platform_driver_2 [2019-10-03 02:25:16,484 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2019-10-03 02:25:16,484 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:25:16,484 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-03 02:25:16,485 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-03 02:25:16,485 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-03 02:25:16,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kzalloc_22 [2019-10-03 02:25:16,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_rtc_device_register_23 [2019-10-03 02:25:16,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_24 [2019-10-03 02:25:16,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_rtc_device_unregister_25 [2019-10-03 02:25:16,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_26 [2019-10-03 02:25:16,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_rtc_device_unregister_27 [2019-10-03 02:25:16,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-03 02:25:16,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-03 02:25:16,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-03 02:25:16,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-03 02:25:16,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_init [2019-10-03 02:25:16,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_check [2019-10-03 02:25:16,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2019-10-03 02:25:16,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2019-10-03 02:25:16,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2019-10-03 02:25:16,490 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-03 02:25:16,490 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-03 02:25:16,491 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-03 02:25:16,491 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_notice [2019-10-03 02:25:16,491 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-03 02:25:16,492 INFO L138 BoogieDeclarations]: Found implementation of procedure device_init_wakeup [2019-10-03 02:25:16,492 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2019-10-03 02:25:16,492 INFO L138 BoogieDeclarations]: Found implementation of procedure irq_set_irq_wake [2019-10-03 02:25:16,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-03 02:25:16,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-03 02:25:16,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_2 [2019-10-03 02:25:16,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_3 [2019-10-03 02:25:16,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_3 [2019-10-03 02:25:16,494 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_probe [2019-10-03 02:25:16,494 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2019-10-03 02:25:16,495 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_irq [2019-10-03 02:25:16,495 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2019-10-03 02:25:16,495 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2019-10-03 02:25:16,495 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_device_register [2019-10-03 02:25:16,495 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_device_unregister [2019-10-03 02:25:16,496 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_time_to_tm [2019-10-03 02:25:16,497 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_tm_to_time [2019-10-03 02:25:16,498 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_update_irq [2019-10-03 02:25:16,499 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_valid_tm [2019-10-03 02:25:16,499 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_printf [2019-10-03 02:25:16,499 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_ioremap [2019-10-03 02:25:16,499 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_iounmap [2019-10-03 02:25:16,500 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-03 02:25:16,501 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-03 02:25:16,501 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-03 02:25:16,501 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-03 02:25:16,502 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:25:16,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-03 02:25:16,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-03 02:25:16,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-03 02:25:16,502 INFO L130 BoogieDeclarations]: Found specification of procedure outer_sync [2019-10-03 02:25:16,503 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2019-10-03 02:25:16,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:25:16,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-03 02:25:16,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-03 02:25:16,504 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-03 02:25:16,504 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-03 02:25:16,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_9 [2019-10-03 02:25:16,505 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-03 02:25:16,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_check [2019-10-03 02:25:16,505 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-03 02:25:16,506 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2019-10-03 02:25:16,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kzalloc_22 [2019-10-03 02:25:16,506 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:25:16,507 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-03 02:25:16,508 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:25:16,509 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-03 02:25:16,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-03 02:25:16,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-03 02:25:16,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-03 02:25:16,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:25:16,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-03 02:25:16,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-03 02:25:16,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-03 02:25:16,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-03 02:25:16,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-03 02:25:16,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-03 02:25:16,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-03 02:25:16,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2019-10-03 02:25:16,516 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2019-10-03 02:25:16,517 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2019-10-03 02:25:16,517 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2019-10-03 02:25:16,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_rtc_class_ops_3 [2019-10-03 02:25:16,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_platform_driver_2 [2019-10-03 02:25:16,518 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2019-10-03 02:25:16,518 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_ioremap [2019-10-03 02:25:16,520 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_iounmap [2019-10-03 02:25:16,520 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2019-10-03 02:25:16,521 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2019-10-03 02:25:16,527 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2019-10-03 02:25:16,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_24 [2019-10-03 02:25:16,529 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2019-10-03 02:25:16,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_26 [2019-10-03 02:25:16,537 INFO L130 BoogieDeclarations]: Found specification of procedure irq_set_irq_wake [2019-10-03 02:25:16,539 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq_wake [2019-10-03 02:25:16,539 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq_wake [2019-10-03 02:25:16,539 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_valid_tm [2019-10-03 02:25:16,540 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_tm_to_time [2019-10-03 02:25:16,540 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_time_to_tm [2019-10-03 02:25:16,540 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2019-10-03 02:25:16,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:25:16,541 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2019-10-03 02:25:16,541 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2019-10-03 02:25:16,541 INFO L130 BoogieDeclarations]: Found specification of procedure device_may_wakeup [2019-10-03 02:25:16,542 INFO L130 BoogieDeclarations]: Found specification of procedure device_init_wakeup [2019-10-03 02:25:16,542 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2019-10-03 02:25:16,542 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-03 02:25:16,543 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-03 02:25:16,543 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-03 02:25:16,543 INFO L130 BoogieDeclarations]: Found specification of procedure dev_notice [2019-10-03 02:25:16,543 INFO L130 BoogieDeclarations]: Found specification of procedure seq_printf [2019-10-03 02:25:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-03 02:25:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-03 02:25:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_device_register [2019-10-03 02:25:16,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_rtc_device_register_23 [2019-10-03 02:25:16,545 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_device_unregister [2019-10-03 02:25:16,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_rtc_device_unregister_25 [2019-10-03 02:25:16,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_rtc_device_unregister_27 [2019-10-03 02:25:16,546 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_update_irq [2019-10-03 02:25:16,546 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2019-10-03 02:25:16,546 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_irq [2019-10-03 02:25:16,547 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2019-10-03 02:25:16,547 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_probe [2019-10-03 02:25:16,547 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2019-10-03 02:25:16,547 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2019-10-03 02:25:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_check_busy [2019-10-03 02:25:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_wait_while_busy [2019-10-03 02:25:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:25:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_read_time [2019-10-03 02:25:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_set_time [2019-10-03 02:25:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:25:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:25:16,550 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_read_alarm [2019-10-03 02:25:16,550 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_alarm_irq_enable [2019-10-03 02:25:16,550 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_set_alarm [2019-10-03 02:25:16,550 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_proc [2019-10-03 02:25:16,551 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_irq_handler [2019-10-03 02:25:16,551 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_probe [2019-10-03 02:25:16,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:25:16,551 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_remove [2019-10-03 02:25:16,552 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_suspend [2019-10-03 02:25:16,552 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_resume [2019-10-03 02:25:16,552 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_shutdown [2019-10-03 02:25:16,552 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_init [2019-10-03 02:25:16,553 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_exit [2019-10-03 02:25:16,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-03 02:25:16,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-03 02:25:16,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_2 [2019-10-03 02:25:16,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_3 [2019-10-03 02:25:16,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_3 [2019-10-03 02:25:16,554 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:25:16,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-03 02:25:16,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-03 02:25:16,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-03 02:25:16,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_init [2019-10-03 02:25:16,556 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-03 02:25:16,556 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:25:16,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:25:16,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-03 02:25:16,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:25:16,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:25:17,677 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-03 02:25:23,009 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:25:23,010 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-03 02:25:23,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:25:23 BoogieIcfgContainer [2019-10-03 02:25:23,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:25:23,014 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:25:23,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:25:23,018 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:25:23,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:25:13" (1/3) ... [2019-10-03 02:25:23,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75c2b2c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:25:23, skipping insertion in model container [2019-10-03 02:25:23,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:25:15" (2/3) ... [2019-10-03 02:25:23,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75c2b2c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:25:23, skipping insertion in model container [2019-10-03 02:25:23,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:25:23" (3/3) ... [2019-10-03 02:25:23,023 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2019-10-03 02:25:23,036 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:25:23,053 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:25:23,073 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:25:23,103 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:25:23,103 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:25:23,103 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:25:23,104 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:25:23,104 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:25:23,104 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:25:23,104 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:25:23,104 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:25:23,143 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states. [2019-10-03 02:25:23,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-03 02:25:23,167 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:25:23,168 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:25:23,171 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:25:23,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:25:23,179 INFO L82 PathProgramCache]: Analyzing trace with hash -1054970132, now seen corresponding path program 1 times [2019-10-03 02:25:23,182 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:25:23,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:25:23,286 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:25:23,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:25:23,287 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:25:23,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:25:23,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:25:23,796 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:25:23,797 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:25:23,797 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:25:23,807 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:25:23,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:25:23,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:25:23,825 INFO L87 Difference]: Start difference. First operand 632 states. Second operand 3 states. [2019-10-03 02:25:23,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:25:23,925 INFO L93 Difference]: Finished difference Result 354 states and 431 transitions. [2019-10-03 02:25:23,928 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:25:23,930 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-10-03 02:25:23,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:25:23,978 INFO L225 Difference]: With dead ends: 354 [2019-10-03 02:25:23,978 INFO L226 Difference]: Without dead ends: 332 [2019-10-03 02:25:23,984 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:25:24,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2019-10-03 02:25:24,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2019-10-03 02:25:24,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2019-10-03 02:25:24,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 403 transitions. [2019-10-03 02:25:24,135 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 403 transitions. Word has length 47 [2019-10-03 02:25:24,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:25:24,137 INFO L475 AbstractCegarLoop]: Abstraction has 332 states and 403 transitions. [2019-10-03 02:25:24,137 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:25:24,137 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 403 transitions. [2019-10-03 02:25:24,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-10-03 02:25:24,143 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:25:24,144 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-03 02:25:24,144 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:25:24,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:25:24,145 INFO L82 PathProgramCache]: Analyzing trace with hash -1407787280, now seen corresponding path program 1 times [2019-10-03 02:25:24,145 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:25:24,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:25:24,155 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:25:24,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:25:24,155 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:25:24,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:25:24,367 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-03 02:25:24,367 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:25:24,367 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:25:24,368 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:25:24,371 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:25:24,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:25:24,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:25:24,373 INFO L87 Difference]: Start difference. First operand 332 states and 403 transitions. Second operand 3 states. [2019-10-03 02:25:24,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:25:24,593 INFO L93 Difference]: Finished difference Result 462 states and 561 transitions. [2019-10-03 02:25:24,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:25:24,593 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2019-10-03 02:25:24,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:25:24,598 INFO L225 Difference]: With dead ends: 462 [2019-10-03 02:25:24,598 INFO L226 Difference]: Without dead ends: 462 [2019-10-03 02:25:24,599 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:25:24,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2019-10-03 02:25:24,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 459. [2019-10-03 02:25:24,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 459 states. [2019-10-03 02:25:24,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 559 transitions. [2019-10-03 02:25:24,633 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 559 transitions. Word has length 68 [2019-10-03 02:25:24,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:25:24,634 INFO L475 AbstractCegarLoop]: Abstraction has 459 states and 559 transitions. [2019-10-03 02:25:24,634 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:25:24,634 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 559 transitions. [2019-10-03 02:25:24,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-10-03 02:25:24,638 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:25:24,638 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-03 02:25:24,638 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:25:24,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:25:24,639 INFO L82 PathProgramCache]: Analyzing trace with hash -1595392143, now seen corresponding path program 1 times [2019-10-03 02:25:24,639 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:25:24,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:25:24,652 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:25:24,652 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:25:24,652 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:25:24,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:25:24,845 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-03 02:25:24,846 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:25:24,846 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:25:24,846 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:25:24,847 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:25:24,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:25:24,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:25:24,847 INFO L87 Difference]: Start difference. First operand 459 states and 559 transitions. Second operand 5 states. [2019-10-03 02:25:25,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:25:25,033 INFO L93 Difference]: Finished difference Result 913 states and 1124 transitions. [2019-10-03 02:25:25,033 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:25:25,034 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2019-10-03 02:25:25,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:25:25,043 INFO L225 Difference]: With dead ends: 913 [2019-10-03 02:25:25,043 INFO L226 Difference]: Without dead ends: 913 [2019-10-03 02:25:25,044 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:25:25,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2019-10-03 02:25:25,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 890. [2019-10-03 02:25:25,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 890 states. [2019-10-03 02:25:25,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 890 states to 890 states and 1092 transitions. [2019-10-03 02:25:25,112 INFO L78 Accepts]: Start accepts. Automaton has 890 states and 1092 transitions. Word has length 70 [2019-10-03 02:25:25,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:25:25,113 INFO L475 AbstractCegarLoop]: Abstraction has 890 states and 1092 transitions. [2019-10-03 02:25:25,113 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:25:25,113 INFO L276 IsEmpty]: Start isEmpty. Operand 890 states and 1092 transitions. [2019-10-03 02:25:25,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-10-03 02:25:25,123 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:25:25,124 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-03 02:25:25,124 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:25:25,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:25:25,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1725664656, now seen corresponding path program 1 times [2019-10-03 02:25:25,125 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:25:25,140 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:25:25,141 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:25:25,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:25:25,141 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:25:25,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:25:25,366 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-03 02:25:25,367 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:25:25,367 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:25:25,367 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:25:25,369 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:25:25,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:25:25,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:25:25,370 INFO L87 Difference]: Start difference. First operand 890 states and 1092 transitions. Second operand 5 states. [2019-10-03 02:25:25,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:25:25,498 INFO L93 Difference]: Finished difference Result 922 states and 1124 transitions. [2019-10-03 02:25:25,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:25:25,499 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 71 [2019-10-03 02:25:25,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:25:25,513 INFO L225 Difference]: With dead ends: 922 [2019-10-03 02:25:25,514 INFO L226 Difference]: Without dead ends: 922 [2019-10-03 02:25:25,514 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:25:25,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2019-10-03 02:25:25,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 898. [2019-10-03 02:25:25,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 898 states. [2019-10-03 02:25:25,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1094 transitions. [2019-10-03 02:25:25,586 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1094 transitions. Word has length 71 [2019-10-03 02:25:25,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:25:25,587 INFO L475 AbstractCegarLoop]: Abstraction has 898 states and 1094 transitions. [2019-10-03 02:25:25,587 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:25:25,587 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1094 transitions. [2019-10-03 02:25:25,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-10-03 02:25:25,591 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:25:25,591 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-03 02:25:25,591 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:25:25,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:25:25,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1099926446, now seen corresponding path program 1 times [2019-10-03 02:25:25,592 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:25:25,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:25:25,603 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:25:25,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:25:25,603 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:25:25,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:25:25,767 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-03 02:25:25,767 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:25:25,767 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:25:25,768 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:25:25,768 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:25:25,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:25:25,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:25:25,769 INFO L87 Difference]: Start difference. First operand 898 states and 1094 transitions. Second operand 5 states. [2019-10-03 02:25:25,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:25:25,894 INFO L93 Difference]: Finished difference Result 930 states and 1122 transitions. [2019-10-03 02:25:25,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:25:25,897 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 72 [2019-10-03 02:25:25,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:25:25,906 INFO L225 Difference]: With dead ends: 930 [2019-10-03 02:25:25,906 INFO L226 Difference]: Without dead ends: 930 [2019-10-03 02:25:25,907 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:25:25,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 930 states. [2019-10-03 02:25:25,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 930 to 906. [2019-10-03 02:25:25,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 906 states. [2019-10-03 02:25:25,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 906 states to 906 states and 1096 transitions. [2019-10-03 02:25:25,950 INFO L78 Accepts]: Start accepts. Automaton has 906 states and 1096 transitions. Word has length 72 [2019-10-03 02:25:25,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:25:25,952 INFO L475 AbstractCegarLoop]: Abstraction has 906 states and 1096 transitions. [2019-10-03 02:25:25,952 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:25:25,952 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states and 1096 transitions. [2019-10-03 02:25:25,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-10-03 02:25:25,956 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:25:25,956 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-03 02:25:25,956 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:25:25,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:25:25,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1068009101, now seen corresponding path program 1 times [2019-10-03 02:25:25,957 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:25:25,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:25:25,965 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:25:25,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:25:25,966 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:25:25,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:25:26,100 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-03 02:25:26,100 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:25:26,100 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:25:26,101 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:25:26,101 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:25:26,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:25:26,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:25:26,103 INFO L87 Difference]: Start difference. First operand 906 states and 1096 transitions. Second operand 5 states. [2019-10-03 02:25:26,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:25:26,204 INFO L93 Difference]: Finished difference Result 833 states and 998 transitions. [2019-10-03 02:25:26,204 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:25:26,205 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 73 [2019-10-03 02:25:26,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:25:26,211 INFO L225 Difference]: With dead ends: 833 [2019-10-03 02:25:26,212 INFO L226 Difference]: Without dead ends: 833 [2019-10-03 02:25:26,212 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:25:26,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2019-10-03 02:25:26,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 815. [2019-10-03 02:25:26,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 815 states. [2019-10-03 02:25:26,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 980 transitions. [2019-10-03 02:25:26,249 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 980 transitions. Word has length 73 [2019-10-03 02:25:26,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:25:26,249 INFO L475 AbstractCegarLoop]: Abstraction has 815 states and 980 transitions. [2019-10-03 02:25:26,250 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:25:26,250 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 980 transitions. [2019-10-03 02:25:26,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2019-10-03 02:25:26,257 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:25:26,258 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-03 02:25:26,258 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:25:26,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:25:26,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1305699994, now seen corresponding path program 1 times [2019-10-03 02:25:26,259 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:25:26,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:25:26,269 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:25:26,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:25:26,269 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:25:26,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:25:26,499 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-03 02:25:26,500 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:25:26,501 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:25:26,502 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 86 with the following transitions: [2019-10-03 02:25:26,506 INFO L207 CegarAbsIntRunner]: [21], [23], [24], [34], [43], [44], [216], [243], [271], [277], [278], [316], [317], [323], [324], [339], [341], [344], [346], [349], [352], [722], [724], [727], [729], [751], [754], [757], [760], [776], [778], [779], [853], [856], [858], [891], [894], [896], [907], [912], [914], [938], [941], [945], [1072], [1073], [1130], [1154], [1155], [1156], [1157], [1158], [1159], [1160], [1161], [1222], [1223], [1224], [1225], [1226], [1232], [1270], [1271], [1280], [1281], [1284], [1285], [1340], [1341], [1342] [2019-10-03 02:25:26,580 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:25:26,580 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:25:26,685 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:25:26,688 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 103 root evaluator evaluations with a maximum evaluation depth of 0. Performed 103 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 160 variables. [2019-10-03 02:25:26,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:25:26,694 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:25:26,753 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 02:25:26,753 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:25:26,761 INFO L420 sIntCurrentIteration]: We unified 84 AI predicates to 84 [2019-10-03 02:25:26,762 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:25:26,763 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:25:26,764 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2019-10-03 02:25:26,764 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:25:26,765 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:25:26,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:25:26,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:25:26,765 INFO L87 Difference]: Start difference. First operand 815 states and 980 transitions. Second operand 2 states. [2019-10-03 02:25:26,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:25:26,769 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 02:25:26,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:25:26,769 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 85 [2019-10-03 02:25:26,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:25:26,770 INFO L225 Difference]: With dead ends: 2 [2019-10-03 02:25:26,770 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:25:26,770 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:25:26,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:25:26,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:25:26,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:25:26,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:25:26,773 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 85 [2019-10-03 02:25:26,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:25:26,773 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:25:26,773 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:25:26,773 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:25:26,773 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:25:26,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:25:26 BoogieIcfgContainer [2019-10-03 02:25:26,782 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:25:26,786 INFO L168 Benchmark]: Toolchain (without parser) took 12820.07 ms. Allocated memory was 129.5 MB in the beginning and 392.7 MB in the end (delta: 263.2 MB). Free memory was 81.2 MB in the beginning and 55.7 MB in the end (delta: 25.5 MB). Peak memory consumption was 288.7 MB. Max. memory is 7.1 GB. [2019-10-03 02:25:26,788 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 129.5 MB. Free memory was 103.7 MB in the beginning and 103.5 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:25:26,791 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1997.91 ms. Allocated memory was 129.5 MB in the beginning and 200.3 MB in the end (delta: 70.8 MB). Free memory was 81.0 MB in the beginning and 124.5 MB in the end (delta: -43.6 MB). Peak memory consumption was 34.9 MB. Max. memory is 7.1 GB. [2019-10-03 02:25:26,793 INFO L168 Benchmark]: Boogie Preprocessor took 358.49 ms. Allocated memory is still 200.3 MB. Free memory was 124.5 MB in the beginning and 114.3 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-10-03 02:25:26,795 INFO L168 Benchmark]: RCFGBuilder took 6689.19 ms. Allocated memory was 200.3 MB in the beginning and 392.7 MB in the end (delta: 192.4 MB). Free memory was 114.3 MB in the beginning and 84.6 MB in the end (delta: 29.7 MB). Peak memory consumption was 223.2 MB. Max. memory is 7.1 GB. [2019-10-03 02:25:26,798 INFO L168 Benchmark]: TraceAbstraction took 3768.13 ms. Allocated memory is still 392.7 MB. Free memory was 84.6 MB in the beginning and 55.7 MB in the end (delta: 28.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 7.1 GB. [2019-10-03 02:25:26,822 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 129.5 MB. Free memory was 103.7 MB in the beginning and 103.5 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1997.91 ms. Allocated memory was 129.5 MB in the beginning and 200.3 MB in the end (delta: 70.8 MB). Free memory was 81.0 MB in the beginning and 124.5 MB in the end (delta: -43.6 MB). Peak memory consumption was 34.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 358.49 ms. Allocated memory is still 200.3 MB. Free memory was 124.5 MB in the beginning and 114.3 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6689.19 ms. Allocated memory was 200.3 MB in the beginning and 392.7 MB in the end (delta: 192.4 MB). Free memory was 114.3 MB in the beginning and 84.6 MB in the end (delta: 29.7 MB). Peak memory consumption was 223.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3768.13 ms. Allocated memory is still 392.7 MB. Free memory was 84.6 MB in the beginning and 55.7 MB in the end (delta: 28.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1664]: 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 96 procedures, 672 locations, 1 error locations. SAFE Result, 3.6s OverallTime, 7 OverallIterations, 2 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2516 SDtfs, 2157 SDslu, 4019 SDs, 0 SdLazy, 118 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 127 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=906occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 2.607142857142857 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 92 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 486 NumberOfCodeBlocks, 486 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 479 ConstructedInterpolants, 0 QuantifiedInterpolants, 51195 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 53/57 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...