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-32_7a-drivers--char--lp.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 12:14:08,443 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 12:14:08,445 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 12:14:08,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 12:14:08,456 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 12:14:08,457 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 12:14:08,459 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 12:14:08,460 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 12:14:08,462 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 12:14:08,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 12:14:08,464 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 12:14:08,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 12:14:08,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 12:14:08,466 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 12:14:08,467 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 12:14:08,469 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 12:14:08,469 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 12:14:08,470 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 12:14:08,472 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 12:14:08,474 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 12:14:08,476 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 12:14:08,477 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 12:14:08,478 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 12:14:08,479 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 12:14:08,482 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 12:14:08,482 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 12:14:08,482 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 12:14:08,483 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 12:14:08,484 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 12:14:08,485 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 12:14:08,485 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 12:14:08,486 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 12:14:08,486 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 12:14:08,487 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 12:14:08,488 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 12:14:08,489 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 12:14:08,490 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 12:14:08,490 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 12:14:08,490 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 12:14:08,491 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 12:14:08,492 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 12:14:08,493 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 12:14:08,520 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 12:14:08,520 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 12:14:08,520 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 12:14:08,521 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 12:14:08,522 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 12:14:08,522 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 12:14:08,522 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 12:14:08,522 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 12:14:08,523 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 12:14:08,523 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 12:14:08,524 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 12:14:08,524 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 12:14:08,525 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 12:14:08,525 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 12:14:08,525 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 12:14:08,525 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 12:14:08,525 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 12:14:08,526 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 12:14:08,526 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 12:14:08,526 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 12:14:08,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 12:14:08,528 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 12:14:08,528 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 12:14:08,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 12:14:08,529 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 12:14:08,529 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 12:14:08,529 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 12:14:08,529 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 12:14:08,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 12:14:08,530 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 12:14:08,566 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 12:14:08,582 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 12:14:08,586 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 12:14:08,587 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 12:14:08,588 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 12:14:08,589 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i [2019-09-10 12:14:08,653 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe00fb9bf/f9e6ef14345b4db4bec67396581262be/FLAGf8f72a659 [2019-09-10 12:14:09,382 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 12:14:09,383 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i [2019-09-10 12:14:09,435 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe00fb9bf/f9e6ef14345b4db4bec67396581262be/FLAGf8f72a659 [2019-09-10 12:14:09,895 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe00fb9bf/f9e6ef14345b4db4bec67396581262be [2019-09-10 12:14:09,907 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 12:14:09,908 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 12:14:09,911 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 12:14:09,911 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 12:14:09,915 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 12:14:09,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 12:14:09" (1/1) ... [2019-09-10 12:14:09,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dd33186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:14:09, skipping insertion in model container [2019-09-10 12:14:09,919 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 12:14:09" (1/1) ... [2019-09-10 12:14:09,926 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 12:14:10,050 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 12:14:11,743 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 12:14:11,809 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 12:14:12,169 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 12:14:12,567 INFO L192 MainTranslator]: Completed translation [2019-09-10 12:14:12,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:14:12 WrapperNode [2019-09-10 12:14:12,569 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 12:14:12,570 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 12:14:12,570 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 12:14:12,570 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 12:14:12,585 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:14:12" (1/1) ... [2019-09-10 12:14:12,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:14:12" (1/1) ... [2019-09-10 12:14:12,682 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:14:12" (1/1) ... [2019-09-10 12:14:12,683 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:14:12" (1/1) ... [2019-09-10 12:14:12,832 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:14:12" (1/1) ... [2019-09-10 12:14:12,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:14:12" (1/1) ... [2019-09-10 12:14:12,904 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:14:12" (1/1) ... [2019-09-10 12:14:12,937 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 12:14:12,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 12:14:12,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 12:14:12,938 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 12:14:12,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:14:12" (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 12:14:13,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 12:14:13,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 12:14:13,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2019-09-10 12:14:13,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2019-09-10 12:14:13,018 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-09-10 12:14:13,018 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2019-09-10 12:14:13,018 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2019-09-10 12:14:13,019 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-09-10 12:14:13,019 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-09-10 12:14:13,019 INFO L138 BoogieDeclarations]: Found implementation of procedure current_top_of_stack [2019-09-10 12:14:13,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-09-10 12:14:13,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-09-10 12:14:13,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-09-10 12:14:13,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-09-10 12:14:13,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-09-10 12:14:13,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-09-10 12:14:13,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-09-10 12:14:13,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-09-10 12:14:13,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-09-10 12:14:13,024 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2019-09-10 12:14:13,024 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2019-09-10 12:14:13,024 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2019-09-10 12:14:13,024 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2019-09-10 12:14:13,024 INFO L138 BoogieDeclarations]: Found implementation of procedure need_resched [2019-09-10 12:14:13,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-09-10 12:14:13,026 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-09-10 12:14:13,026 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2019-09-10 12:14:13,026 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2019-09-10 12:14:13,027 INFO L138 BoogieDeclarations]: Found implementation of procedure register_chrdev [2019-09-10 12:14:13,027 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev [2019-09-10 12:14:13,027 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-09-10 12:14:13,027 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-09-10 12:14:13,027 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2019-09-10 12:14:13,027 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_yield_blocking [2019-09-10 12:14:13,028 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_claim_parport_or_block [2019-09-10 12:14:13,028 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_release_parport [2019-09-10 12:14:13,028 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_preempt [2019-09-10 12:14:13,028 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_negotiate [2019-09-10 12:14:13,028 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_reset [2019-09-10 12:14:13,028 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_error [2019-09-10 12:14:13,028 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_check_status [2019-09-10 12:14:13,029 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_wait_ready [2019-09-10 12:14:13,029 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_write [2019-09-10 12:14:13,029 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_read [2019-09-10 12:14:13,029 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_open [2019-09-10 12:14:13,029 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_release [2019-09-10 12:14:13,029 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_do_ioctl [2019-09-10 12:14:13,029 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_set_timeout [2019-09-10 12:14:13,030 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_ioctl [2019-09-10 12:14:13,030 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_compat_ioctl [2019-09-10 12:14:13,030 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_console_write [2019-09-10 12:14:13,030 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_register [2019-09-10 12:14:13,030 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_attach [2019-09-10 12:14:13,030 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_detach [2019-09-10 12:14:13,031 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_init [2019-09-10 12:14:13,031 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_init_module [2019-09-10 12:14:13,031 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_cleanup_module [2019-09-10 12:14:13,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_3 [2019-09-10 12:14:13,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_parport_driver_1 [2019-09-10 12:14:13,032 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 12:14:13,032 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-09-10 12:14:13,032 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-09-10 12:14:13,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_5 [2019-09-10 12:14:13,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_6 [2019-09-10 12:14:13,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2019-09-10 12:14:13,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2019-09-10 12:14:13,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_9 [2019-09-10 12:14:13,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_10 [2019-09-10 12:14:13,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2019-09-10 12:14:13,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_12 [2019-09-10 12:14:13,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_13 [2019-09-10 12:14:13,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_14 [2019-09-10 12:14:13,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_15 [2019-09-10 12:14:13,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_16 [2019-09-10 12:14:13,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_17 [2019-09-10 12:14:13,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_18 [2019-09-10 12:14:13,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_19 [2019-09-10 12:14:13,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_20 [2019-09-10 12:14:13,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_21 [2019-09-10 12:14:13,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_22 [2019-09-10 12:14:13,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_23 [2019-09-10 12:14:13,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_chrdev_24 [2019-09-10 12:14:13,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_25 [2019-09-10 12:14:13,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-09-10 12:14:13,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2019-09-10 12:14:13,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-09-10 12:14:13,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-09-10 12:14:13,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-09-10 12:14:13,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-09-10 12:14:13,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2019-09-10 12:14:13,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2019-09-10 12:14:13,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_i_mutex_of_inode [2019-09-10 12:14:13,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_i_mutex_of_inode [2019-09-10 12:14:13,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2019-09-10 12:14:13,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_i_mutex_of_inode [2019-09-10 12:14:13,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_i_mutex_of_inode [2019-09-10 12:14:13,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_i_mutex_of_inode [2019-09-10 12:14:13,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_i_mutex_of_inode [2019-09-10 12:14:13,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2019-09-10 12:14:13,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_i_mutex_of_inode [2019-09-10 12:14:13,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2019-09-10 12:14:13,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2019-09-10 12:14:13,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2019-09-10 12:14:13,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2019-09-10 12:14:13,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-09-10 12:14:13,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2019-09-10 12:14:13,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2019-09-10 12:14:13,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_lock [2019-09-10 12:14:13,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_lock [2019-09-10 12:14:13,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_lock [2019-09-10 12:14:13,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_lock [2019-09-10 12:14:13,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lp_mutex [2019-09-10 12:14:13,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lp_mutex [2019-09-10 12:14:13,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lp_mutex [2019-09-10 12:14:13,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lp_mutex [2019-09-10 12:14:13,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lp_mutex [2019-09-10 12:14:13,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lp_mutex [2019-09-10 12:14:13,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lp_mutex [2019-09-10 12:14:13,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_lp_mutex [2019-09-10 12:14:13,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_lp_mutex [2019-09-10 12:14:13,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_lp_mutex [2019-09-10 12:14:13,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_lp_mutex [2019-09-10 12:14:13,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-09-10 12:14:13,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2019-09-10 12:14:13,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2019-09-10 12:14:13,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2019-09-10 12:14:13,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-09-10 12:14:13,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2019-09-10 12:14:13,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2019-09-10 12:14:13,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_mutex_of_device [2019-09-10 12:14:13,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_mutex_of_device [2019-09-10 12:14:13,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2019-09-10 12:14:13,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_mutex_of_device [2019-09-10 12:14:13,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_port_mutex_of_lp_struct [2019-09-10 12:14:13,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_port_mutex_of_lp_struct [2019-09-10 12:14:13,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_port_mutex_of_lp_struct [2019-09-10 12:14:13,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_port_mutex_of_lp_struct [2019-09-10 12:14:13,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_port_mutex_of_lp_struct [2019-09-10 12:14:13,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_port_mutex_of_lp_struct [2019-09-10 12:14:13,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_port_mutex_of_lp_struct [2019-09-10 12:14:13,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_port_mutex_of_lp_struct [2019-09-10 12:14:13,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_port_mutex_of_lp_struct [2019-09-10 12:14:13,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_port_mutex_of_lp_struct [2019-09-10 12:14:13,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_port_mutex_of_lp_struct [2019-09-10 12:14:13,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-10 12:14:13,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ___might_sleep [2019-09-10 12:14:13,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __class_create [2019-09-10 12:14:13,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2019-09-10 12:14:13,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2019-09-10 12:14:13,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2019-09-10 12:14:13,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-09-10 12:14:13,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2019-09-10 12:14:13,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-09-10 12:14:13,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __parport_register_driver [2019-09-10 12:14:13,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __register_chrdev [2019-09-10 12:14:13,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __unregister_chrdev [2019-09-10 12:14:13,067 INFO L138 BoogieDeclarations]: Found implementation of procedure _cond_resched [2019-09-10 12:14:13,067 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-09-10 12:14:13,068 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-09-10 12:14:13,068 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2019-09-10 12:14:13,068 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_get_timeval [2019-09-10 12:14:13,068 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2019-09-10 12:14:13,068 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2019-09-10 12:14:13,069 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2019-09-10 12:14:13,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_close_1 [2019-09-10 12:14:13,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-10 12:14:13,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_open_1 [2019-09-10 12:14:13,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_1 [2019-09-10 12:14:13,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_2 [2019-09-10 12:14:13,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2019-09-10 12:14:13,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2019-09-10 12:14:13,070 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-09-10 12:14:13,070 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2019-09-10 12:14:13,070 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2019-09-10 12:14:13,070 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-09-10 12:14:13,070 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2019-09-10 12:14:13,070 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_claim [2019-09-10 12:14:13,070 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_claim_or_block [2019-09-10 12:14:13,071 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_negotiate [2019-09-10 12:14:13,071 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_read [2019-09-10 12:14:13,071 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_register_device [2019-09-10 12:14:13,071 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_release [2019-09-10 12:14:13,071 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_set_timeout [2019-09-10 12:14:13,071 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_unregister_device [2019-09-10 12:14:13,071 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_unregister_driver [2019-09-10 12:14:13,071 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_write [2019-09-10 12:14:13,072 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2019-09-10 12:14:13,072 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-09-10 12:14:13,072 INFO L138 BoogieDeclarations]: Found implementation of procedure register_console [2019-09-10 12:14:13,072 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-09-10 12:14:13,072 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2019-09-10 12:14:13,072 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2019-09-10 12:14:13,073 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_console [2019-09-10 12:14:13,073 INFO L138 BoogieDeclarations]: Found implementation of procedure autoremove_wake_function [2019-09-10 12:14:13,073 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-10 12:14:13,073 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-10 12:14:13,074 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-09-10 12:14:13,074 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-09-10 12:14:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 12:14:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-09-10 12:14:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-09-10 12:14:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2019-09-10 12:14:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2019-09-10 12:14:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-09-10 12:14:13,075 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-09-10 12:14:13,075 INFO L130 BoogieDeclarations]: Found specification of procedure ___might_sleep [2019-09-10 12:14:13,075 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2019-09-10 12:14:13,075 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2019-09-10 12:14:13,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-09-10 12:14:13,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-09-10 12:14:13,075 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-09-10 12:14:13,075 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-09-10 12:14:13,075 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-09-10 12:14:13,076 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2019-09-10 12:14:13,076 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2019-09-10 12:14:13,076 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-09-10 12:14:13,076 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-09-10 12:14:13,076 INFO L130 BoogieDeclarations]: Found specification of procedure current_top_of_stack [2019-09-10 12:14:13,076 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-09-10 12:14:13,076 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2019-09-10 12:14:13,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_10 [2019-09-10 12:14:13,077 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-09-10 12:14:13,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_6 [2019-09-10 12:14:13,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2019-09-10 12:14:13,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2019-09-10 12:14:13,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_13 [2019-09-10 12:14:13,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_15 [2019-09-10 12:14:13,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_17 [2019-09-10 12:14:13,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_19 [2019-09-10 12:14:13,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_21 [2019-09-10 12:14:13,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_23 [2019-09-10 12:14:13,078 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 12:14:13,078 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-10 12:14:13,078 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 12:14:13,078 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-09-10 12:14:13,078 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-10 12:14:13,078 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 12:14:13,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-09-10 12:14:13,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 12:14:13,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-09-10 12:14:13,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-09-10 12:14:13,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-09-10 12:14:13,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-09-10 12:14:13,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-09-10 12:14:13,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-09-10 12:14:13,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-09-10 12:14:13,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-09-10 12:14:13,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-09-10 12:14:13,080 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2019-09-10 12:14:13,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_12 [2019-09-10 12:14:13,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_14 [2019-09-10 12:14:13,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_18 [2019-09-10 12:14:13,080 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-09-10 12:14:13,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_5 [2019-09-10 12:14:13,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2019-09-10 12:14:13,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_9 [2019-09-10 12:14:13,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_16 [2019-09-10 12:14:13,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_20 [2019-09-10 12:14:13,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_22 [2019-09-10 12:14:13,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_i_mutex_of_inode [2019-09-10 12:14:13,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_i_mutex_of_inode [2019-09-10 12:14:13,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2019-09-10 12:14:13,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2019-09-10 12:14:13,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lp_mutex [2019-09-10 12:14:13,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lp_mutex [2019-09-10 12:14:13,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2019-09-10 12:14:13,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2019-09-10 12:14:13,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2019-09-10 12:14:13,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_port_mutex_of_lp_struct [2019-09-10 12:14:13,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_port_mutex_of_lp_struct [2019-09-10 12:14:13,087 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2019-09-10 12:14:13,090 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2019-09-10 12:14:13,090 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-09-10 12:14:13,090 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2019-09-10 12:14:13,090 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2019-09-10 12:14:13,090 INFO L130 BoogieDeclarations]: Found specification of procedure autoremove_wake_function [2019-09-10 12:14:13,090 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2019-09-10 12:14:13,091 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-09-10 12:14:13,091 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2019-09-10 12:14:13,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 12:14:13,091 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2019-09-10 12:14:13,091 INFO L130 BoogieDeclarations]: Found specification of procedure _cond_resched [2019-09-10 12:14:13,091 INFO L130 BoogieDeclarations]: Found specification of procedure need_resched [2019-09-10 12:14:13,091 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-10 12:14:13,091 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-09-10 12:14:13,092 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-09-10 12:14:13,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_3 [2019-09-10 12:14:13,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_parport_driver_1 [2019-09-10 12:14:13,092 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2019-09-10 12:14:13,092 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2019-09-10 12:14:13,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 12:14:13,092 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2019-09-10 12:14:13,093 INFO L130 BoogieDeclarations]: Found specification of procedure __register_chrdev [2019-09-10 12:14:13,093 INFO L130 BoogieDeclarations]: Found specification of procedure __unregister_chrdev [2019-09-10 12:14:13,093 INFO L130 BoogieDeclarations]: Found specification of procedure register_chrdev [2019-09-10 12:14:13,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_chrdev_24 [2019-09-10 12:14:13,093 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev [2019-09-10 12:14:13,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_25 [2019-09-10 12:14:13,093 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2019-09-10 12:14:13,093 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-09-10 12:14:13,094 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-09-10 12:14:13,094 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2019-09-10 12:14:13,094 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2019-09-10 12:14:13,094 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-09-10 12:14:13,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 12:14:13,094 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-09-10 12:14:13,094 INFO L130 BoogieDeclarations]: Found specification of procedure register_console [2019-09-10 12:14:13,094 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_console [2019-09-10 12:14:13,094 INFO L130 BoogieDeclarations]: Found specification of procedure __class_create [2019-09-10 12:14:13,095 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2019-09-10 12:14:13,095 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2019-09-10 12:14:13,095 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2019-09-10 12:14:13,095 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2019-09-10 12:14:13,095 INFO L130 BoogieDeclarations]: Found specification of procedure compat_get_timeval [2019-09-10 12:14:13,095 INFO L130 BoogieDeclarations]: Found specification of procedure __parport_register_driver [2019-09-10 12:14:13,095 INFO L130 BoogieDeclarations]: Found specification of procedure parport_unregister_driver [2019-09-10 12:14:13,095 INFO L130 BoogieDeclarations]: Found specification of procedure parport_register_device [2019-09-10 12:14:13,095 INFO L130 BoogieDeclarations]: Found specification of procedure parport_unregister_device [2019-09-10 12:14:13,096 INFO L130 BoogieDeclarations]: Found specification of procedure parport_claim [2019-09-10 12:14:13,096 INFO L130 BoogieDeclarations]: Found specification of procedure parport_claim_or_block [2019-09-10 12:14:13,096 INFO L130 BoogieDeclarations]: Found specification of procedure parport_release [2019-09-10 12:14:13,096 INFO L130 BoogieDeclarations]: Found specification of procedure parport_yield_blocking [2019-09-10 12:14:13,096 INFO L130 BoogieDeclarations]: Found specification of procedure parport_negotiate [2019-09-10 12:14:13,096 INFO L130 BoogieDeclarations]: Found specification of procedure parport_write [2019-09-10 12:14:13,096 INFO L130 BoogieDeclarations]: Found specification of procedure parport_read [2019-09-10 12:14:13,096 INFO L130 BoogieDeclarations]: Found specification of procedure parport_set_timeout [2019-09-10 12:14:13,096 INFO L130 BoogieDeclarations]: Found specification of procedure lp_claim_parport_or_block [2019-09-10 12:14:13,097 INFO L130 BoogieDeclarations]: Found specification of procedure lp_release_parport [2019-09-10 12:14:13,097 INFO L130 BoogieDeclarations]: Found specification of procedure lp_preempt [2019-09-10 12:14:13,097 INFO L130 BoogieDeclarations]: Found specification of procedure lp_negotiate [2019-09-10 12:14:13,097 INFO L130 BoogieDeclarations]: Found specification of procedure lp_reset [2019-09-10 12:14:13,097 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2019-09-10 12:14:13,097 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2019-09-10 12:14:13,097 INFO L130 BoogieDeclarations]: Found specification of procedure lp_error [2019-09-10 12:14:13,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 12:14:13,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 12:14:13,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 12:14:13,098 INFO L130 BoogieDeclarations]: Found specification of procedure lp_check_status [2019-09-10 12:14:13,098 INFO L130 BoogieDeclarations]: Found specification of procedure lp_wait_ready [2019-09-10 12:14:13,098 INFO L130 BoogieDeclarations]: Found specification of procedure lp_write [2019-09-10 12:14:13,098 INFO L130 BoogieDeclarations]: Found specification of procedure lp_read [2019-09-10 12:14:13,098 INFO L130 BoogieDeclarations]: Found specification of procedure lp_open [2019-09-10 12:14:13,099 INFO L130 BoogieDeclarations]: Found specification of procedure lp_release [2019-09-10 12:14:13,099 INFO L130 BoogieDeclarations]: Found specification of procedure lp_do_ioctl [2019-09-10 12:14:13,099 INFO L130 BoogieDeclarations]: Found specification of procedure lp_set_timeout [2019-09-10 12:14:13,099 INFO L130 BoogieDeclarations]: Found specification of procedure lp_ioctl [2019-09-10 12:14:13,099 INFO L130 BoogieDeclarations]: Found specification of procedure lp_compat_ioctl [2019-09-10 12:14:13,099 INFO L130 BoogieDeclarations]: Found specification of procedure lp_console_write [2019-09-10 12:14:13,099 INFO L130 BoogieDeclarations]: Found specification of procedure lp_register [2019-09-10 12:14:13,099 INFO L130 BoogieDeclarations]: Found specification of procedure lp_attach [2019-09-10 12:14:13,100 INFO L130 BoogieDeclarations]: Found specification of procedure lp_detach [2019-09-10 12:14:13,100 INFO L130 BoogieDeclarations]: Found specification of procedure lp_init [2019-09-10 12:14:13,100 INFO L130 BoogieDeclarations]: Found specification of procedure lp_init_module [2019-09-10 12:14:13,100 INFO L130 BoogieDeclarations]: Found specification of procedure lp_cleanup_module [2019-09-10 12:14:13,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_open_1 [2019-09-10 12:14:13,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_1 [2019-09-10 12:14:13,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2019-09-10 12:14:13,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2019-09-10 12:14:13,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-10 12:14:13,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_close_1 [2019-09-10 12:14:13,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-10 12:14:13,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_2 [2019-09-10 12:14:13,101 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 12:14:13,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-09-10 12:14:13,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2019-09-10 12:14:13,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-09-10 12:14:13,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-09-10 12:14:13,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2019-09-10 12:14:13,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2019-09-10 12:14:13,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_i_mutex_of_inode [2019-09-10 12:14:13,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2019-09-10 12:14:13,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_i_mutex_of_inode [2019-09-10 12:14:13,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_i_mutex_of_inode [2019-09-10 12:14:13,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_i_mutex_of_inode [2019-09-10 12:14:13,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2019-09-10 12:14:13,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_i_mutex_of_inode [2019-09-10 12:14:13,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2019-09-10 12:14:13,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2019-09-10 12:14:13,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2019-09-10 12:14:13,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-09-10 12:14:13,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2019-09-10 12:14:13,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_lock [2019-09-10 12:14:13,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_lock [2019-09-10 12:14:13,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_lock [2019-09-10 12:14:13,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_lock [2019-09-10 12:14:13,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lp_mutex [2019-09-10 12:14:13,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lp_mutex [2019-09-10 12:14:13,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lp_mutex [2019-09-10 12:14:13,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lp_mutex [2019-09-10 12:14:13,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lp_mutex [2019-09-10 12:14:13,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_lp_mutex [2019-09-10 12:14:13,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_lp_mutex [2019-09-10 12:14:13,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_lp_mutex [2019-09-10 12:14:13,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_lp_mutex [2019-09-10 12:14:13,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-09-10 12:14:13,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2019-09-10 12:14:13,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-09-10 12:14:13,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2019-09-10 12:14:13,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_mutex_of_device [2019-09-10 12:14:13,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_mutex_of_device [2019-09-10 12:14:13,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2019-09-10 12:14:13,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_mutex_of_device [2019-09-10 12:14:13,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_port_mutex_of_lp_struct [2019-09-10 12:14:13,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_port_mutex_of_lp_struct [2019-09-10 12:14:13,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_port_mutex_of_lp_struct [2019-09-10 12:14:13,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_port_mutex_of_lp_struct [2019-09-10 12:14:13,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_port_mutex_of_lp_struct [2019-09-10 12:14:13,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_port_mutex_of_lp_struct [2019-09-10 12:14:13,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_port_mutex_of_lp_struct [2019-09-10 12:14:13,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_port_mutex_of_lp_struct [2019-09-10 12:14:13,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_port_mutex_of_lp_struct [2019-09-10 12:14:13,108 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-10 12:14:13,108 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-09-10 12:14:13,108 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 12:14:13,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 12:14:13,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 12:14:13,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-10 12:14:13,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 12:14:14,087 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-09-10 12:14:16,762 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 12:14:16,762 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-10 12:14:16,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 12:14:16 BoogieIcfgContainer [2019-09-10 12:14:16,764 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 12:14:16,765 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 12:14:16,765 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 12:14:16,768 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 12:14:16,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 12:14:09" (1/3) ... [2019-09-10 12:14:16,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f526f09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 12:14:16, skipping insertion in model container [2019-09-10 12:14:16,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:14:12" (2/3) ... [2019-09-10 12:14:16,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f526f09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 12:14:16, skipping insertion in model container [2019-09-10 12:14:16,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 12:14:16" (3/3) ... [2019-09-10 12:14:16,772 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i [2019-09-10 12:14:16,782 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 12:14:16,791 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 12:14:16,809 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 12:14:16,836 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 12:14:16,836 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 12:14:16,836 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 12:14:16,836 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 12:14:16,837 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 12:14:16,837 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 12:14:16,837 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 12:14:16,837 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 12:14:16,876 INFO L276 IsEmpty]: Start isEmpty. Operand 1356 states. [2019-09-10 12:14:16,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-09-10 12:14:16,901 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 12:14:16,902 INFO L399 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:14:16,904 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 12:14:16,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 12:14:16,910 INFO L82 PathProgramCache]: Analyzing trace with hash -1131162688, now seen corresponding path program 1 times [2019-09-10 12:14:16,912 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 12:14:16,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:14:16,988 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 12:14:16,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:14:16,989 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 12:14:17,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 12:14:17,921 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2019-09-10 12:14:17,923 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 12:14:17,924 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 12:14:17,924 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 12:14:17,929 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 12:14:17,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 12:14:17,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 12:14:17,948 INFO L87 Difference]: Start difference. First operand 1356 states. Second operand 7 states. [2019-09-10 12:14:18,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 12:14:18,415 INFO L93 Difference]: Finished difference Result 1119 states and 1451 transitions. [2019-09-10 12:14:18,415 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 12:14:18,417 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 199 [2019-09-10 12:14:18,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 12:14:18,455 INFO L225 Difference]: With dead ends: 1119 [2019-09-10 12:14:18,455 INFO L226 Difference]: Without dead ends: 1099 [2019-09-10 12:14:18,457 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-09-10 12:14:18,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1099 states. [2019-09-10 12:14:18,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1099 to 1086. [2019-09-10 12:14:18,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1086 states. [2019-09-10 12:14:18,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1410 transitions. [2019-09-10 12:14:18,607 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1410 transitions. Word has length 199 [2019-09-10 12:14:18,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 12:14:18,616 INFO L475 AbstractCegarLoop]: Abstraction has 1086 states and 1410 transitions. [2019-09-10 12:14:18,617 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 12:14:18,617 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1410 transitions. [2019-09-10 12:14:18,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-09-10 12:14:18,627 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 12:14:18,627 INFO L399 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:14:18,627 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 12:14:18,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 12:14:18,628 INFO L82 PathProgramCache]: Analyzing trace with hash -1594662336, now seen corresponding path program 1 times [2019-09-10 12:14:18,628 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 12:14:18,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:14:18,632 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 12:14:18,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:14:18,632 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 12:14:18,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 12:14:18,904 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2019-09-10 12:14:18,904 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 12:14:18,904 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 12:14:18,905 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 12:14:18,907 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 12:14:18,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 12:14:18,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 12:14:18,909 INFO L87 Difference]: Start difference. First operand 1086 states and 1410 transitions. Second operand 3 states. [2019-09-10 12:14:19,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 12:14:19,078 INFO L93 Difference]: Finished difference Result 1427 states and 1836 transitions. [2019-09-10 12:14:19,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 12:14:19,082 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 200 [2019-09-10 12:14:19,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 12:14:19,106 INFO L225 Difference]: With dead ends: 1427 [2019-09-10 12:14:19,106 INFO L226 Difference]: Without dead ends: 1427 [2019-09-10 12:14:19,107 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 12:14:19,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1427 states. [2019-09-10 12:14:19,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1427 to 1378. [2019-09-10 12:14:19,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1378 states. [2019-09-10 12:14:19,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 1780 transitions. [2019-09-10 12:14:19,175 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 1780 transitions. Word has length 200 [2019-09-10 12:14:19,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 12:14:19,177 INFO L475 AbstractCegarLoop]: Abstraction has 1378 states and 1780 transitions. [2019-09-10 12:14:19,177 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 12:14:19,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 1780 transitions. [2019-09-10 12:14:19,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2019-09-10 12:14:19,183 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 12:14:19,183 INFO L399 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:14:19,184 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 12:14:19,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 12:14:19,184 INFO L82 PathProgramCache]: Analyzing trace with hash -1658027202, now seen corresponding path program 1 times [2019-09-10 12:14:19,184 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 12:14:19,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:14:19,188 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 12:14:19,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:14:19,188 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 12:14:19,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 12:14:19,625 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2019-09-10 12:14:19,625 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 12:14:19,625 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 12:14:19,625 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 12:14:19,629 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 12:14:19,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 12:14:19,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 12:14:19,630 INFO L87 Difference]: Start difference. First operand 1378 states and 1780 transitions. Second operand 3 states. [2019-09-10 12:14:19,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 12:14:19,661 INFO L93 Difference]: Finished difference Result 1377 states and 1778 transitions. [2019-09-10 12:14:19,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 12:14:19,662 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2019-09-10 12:14:19,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 12:14:19,669 INFO L225 Difference]: With dead ends: 1377 [2019-09-10 12:14:19,670 INFO L226 Difference]: Without dead ends: 1377 [2019-09-10 12:14:19,670 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 12:14:19,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1377 states. [2019-09-10 12:14:19,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1377 to 1377. [2019-09-10 12:14:19,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1377 states. [2019-09-10 12:14:19,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1377 states to 1377 states and 1778 transitions. [2019-09-10 12:14:19,719 INFO L78 Accepts]: Start accepts. Automaton has 1377 states and 1778 transitions. Word has length 205 [2019-09-10 12:14:19,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 12:14:19,720 INFO L475 AbstractCegarLoop]: Abstraction has 1377 states and 1778 transitions. [2019-09-10 12:14:19,720 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 12:14:19,720 INFO L276 IsEmpty]: Start isEmpty. Operand 1377 states and 1778 transitions. [2019-09-10 12:14:19,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2019-09-10 12:14:19,724 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 12:14:19,724 INFO L399 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:14:19,725 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 12:14:19,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 12:14:19,725 INFO L82 PathProgramCache]: Analyzing trace with hash 140209147, now seen corresponding path program 1 times [2019-09-10 12:14:19,725 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 12:14:19,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:14:19,729 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 12:14:19,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:14:19,729 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 12:14:19,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 12:14:20,001 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2019-09-10 12:14:20,002 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 12:14:20,002 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 12:14:20,002 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 12:14:20,003 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 12:14:20,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 12:14:20,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 12:14:20,003 INFO L87 Difference]: Start difference. First operand 1377 states and 1778 transitions. Second operand 3 states. [2019-09-10 12:14:20,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 12:14:20,028 INFO L93 Difference]: Finished difference Result 1376 states and 1776 transitions. [2019-09-10 12:14:20,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 12:14:20,029 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 206 [2019-09-10 12:14:20,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 12:14:20,036 INFO L225 Difference]: With dead ends: 1376 [2019-09-10 12:14:20,036 INFO L226 Difference]: Without dead ends: 1376 [2019-09-10 12:14:20,036 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 12:14:20,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1376 states. [2019-09-10 12:14:20,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1376 to 1376. [2019-09-10 12:14:20,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1376 states. [2019-09-10 12:14:20,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 1776 transitions. [2019-09-10 12:14:20,078 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 1776 transitions. Word has length 206 [2019-09-10 12:14:20,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 12:14:20,078 INFO L475 AbstractCegarLoop]: Abstraction has 1376 states and 1776 transitions. [2019-09-10 12:14:20,079 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 12:14:20,079 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 1776 transitions. [2019-09-10 12:14:20,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-09-10 12:14:20,082 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 12:14:20,082 INFO L399 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:14:20,082 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 12:14:20,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 12:14:20,083 INFO L82 PathProgramCache]: Analyzing trace with hash 50965985, now seen corresponding path program 1 times [2019-09-10 12:14:20,083 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 12:14:20,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:14:20,086 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 12:14:20,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:14:20,086 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 12:14:20,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 12:14:20,350 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2019-09-10 12:14:20,350 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 12:14:20,351 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 12:14:20,351 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 12:14:20,351 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 12:14:20,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 12:14:20,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 12:14:20,352 INFO L87 Difference]: Start difference. First operand 1376 states and 1776 transitions. Second operand 3 states. [2019-09-10 12:14:20,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 12:14:20,389 INFO L93 Difference]: Finished difference Result 1502 states and 1901 transitions. [2019-09-10 12:14:20,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 12:14:20,390 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 207 [2019-09-10 12:14:20,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 12:14:20,397 INFO L225 Difference]: With dead ends: 1502 [2019-09-10 12:14:20,398 INFO L226 Difference]: Without dead ends: 1502 [2019-09-10 12:14:20,398 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 12:14:20,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1502 states. [2019-09-10 12:14:20,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1502 to 1498. [2019-09-10 12:14:20,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1498 states. [2019-09-10 12:14:20,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 1898 transitions. [2019-09-10 12:14:20,475 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 1898 transitions. Word has length 207 [2019-09-10 12:14:20,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 12:14:20,476 INFO L475 AbstractCegarLoop]: Abstraction has 1498 states and 1898 transitions. [2019-09-10 12:14:20,477 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 12:14:20,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 1898 transitions. [2019-09-10 12:14:20,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2019-09-10 12:14:20,480 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 12:14:20,480 INFO L399 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:14:20,481 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 12:14:20,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 12:14:20,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1579400126, now seen corresponding path program 1 times [2019-09-10 12:14:20,481 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 12:14:20,484 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:14:20,484 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 12:14:20,484 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:14:20,484 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 12:14:20,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 12:14:20,740 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2019-09-10 12:14:20,740 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 12:14:20,740 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 12:14:20,741 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 12:14:20,741 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 12:14:20,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 12:14:20,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 12:14:20,742 INFO L87 Difference]: Start difference. First operand 1498 states and 1898 transitions. Second operand 3 states. [2019-09-10 12:14:20,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 12:14:20,766 INFO L93 Difference]: Finished difference Result 1497 states and 1896 transitions. [2019-09-10 12:14:20,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 12:14:20,766 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 208 [2019-09-10 12:14:20,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 12:14:20,774 INFO L225 Difference]: With dead ends: 1497 [2019-09-10 12:14:20,774 INFO L226 Difference]: Without dead ends: 1497 [2019-09-10 12:14:20,775 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 12:14:20,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2019-09-10 12:14:20,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1497. [2019-09-10 12:14:20,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1497 states. [2019-09-10 12:14:20,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1497 states to 1497 states and 1896 transitions. [2019-09-10 12:14:20,817 INFO L78 Accepts]: Start accepts. Automaton has 1497 states and 1896 transitions. Word has length 208 [2019-09-10 12:14:20,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 12:14:20,818 INFO L475 AbstractCegarLoop]: Abstraction has 1497 states and 1896 transitions. [2019-09-10 12:14:20,818 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 12:14:20,818 INFO L276 IsEmpty]: Start isEmpty. Operand 1497 states and 1896 transitions. [2019-09-10 12:14:20,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-09-10 12:14:20,821 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 12:14:20,821 INFO L399 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:14:20,822 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 12:14:20,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 12:14:20,822 INFO L82 PathProgramCache]: Analyzing trace with hash 1716223108, now seen corresponding path program 1 times [2019-09-10 12:14:20,822 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 12:14:20,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:14:20,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 12:14:20,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:14:20,825 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 12:14:20,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 12:14:21,079 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2019-09-10 12:14:21,080 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 12:14:21,080 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 12:14:21,080 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 12:14:21,080 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 12:14:21,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 12:14:21,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 12:14:21,081 INFO L87 Difference]: Start difference. First operand 1497 states and 1896 transitions. Second operand 3 states. [2019-09-10 12:14:21,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 12:14:21,140 INFO L93 Difference]: Finished difference Result 2909 states and 3706 transitions. [2019-09-10 12:14:21,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 12:14:21,141 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 209 [2019-09-10 12:14:21,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 12:14:21,155 INFO L225 Difference]: With dead ends: 2909 [2019-09-10 12:14:21,156 INFO L226 Difference]: Without dead ends: 2866 [2019-09-10 12:14:21,156 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 12:14:21,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2866 states. [2019-09-10 12:14:21,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2866 to 2858. [2019-09-10 12:14:21,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2858 states. [2019-09-10 12:14:21,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2858 states to 2858 states and 3647 transitions. [2019-09-10 12:14:21,245 INFO L78 Accepts]: Start accepts. Automaton has 2858 states and 3647 transitions. Word has length 209 [2019-09-10 12:14:21,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 12:14:21,245 INFO L475 AbstractCegarLoop]: Abstraction has 2858 states and 3647 transitions. [2019-09-10 12:14:21,245 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 12:14:21,246 INFO L276 IsEmpty]: Start isEmpty. Operand 2858 states and 3647 transitions. [2019-09-10 12:14:21,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2019-09-10 12:14:21,252 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 12:14:21,252 INFO L399 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 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] [2019-09-10 12:14:21,253 INFO L418 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 12:14:21,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 12:14:21,253 INFO L82 PathProgramCache]: Analyzing trace with hash 2122150103, now seen corresponding path program 1 times [2019-09-10 12:14:21,253 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 12:14:21,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:14:21,256 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 12:14:21,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:14:21,256 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 12:14:21,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 12:14:21,597 INFO L134 CoverageAnalysis]: Checked inductivity of 579 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2019-09-10 12:14:21,598 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 12:14:21,598 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 12:14:21,598 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 12:14:21,599 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 12:14:21,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 12:14:21,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 12:14:21,600 INFO L87 Difference]: Start difference. First operand 2858 states and 3647 transitions. Second operand 3 states. [2019-09-10 12:14:21,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 12:14:21,777 INFO L93 Difference]: Finished difference Result 2870 states and 3665 transitions. [2019-09-10 12:14:21,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 12:14:21,780 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 280 [2019-09-10 12:14:21,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 12:14:21,796 INFO L225 Difference]: With dead ends: 2870 [2019-09-10 12:14:21,796 INFO L226 Difference]: Without dead ends: 2870 [2019-09-10 12:14:21,797 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 12:14:21,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2870 states. [2019-09-10 12:14:21,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2870 to 2860. [2019-09-10 12:14:21,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2860 states. [2019-09-10 12:14:21,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2860 states to 2860 states and 3649 transitions. [2019-09-10 12:14:21,879 INFO L78 Accepts]: Start accepts. Automaton has 2860 states and 3649 transitions. Word has length 280 [2019-09-10 12:14:21,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 12:14:21,880 INFO L475 AbstractCegarLoop]: Abstraction has 2860 states and 3649 transitions. [2019-09-10 12:14:21,880 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 12:14:21,880 INFO L276 IsEmpty]: Start isEmpty. Operand 2860 states and 3649 transitions. [2019-09-10 12:14:21,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2019-09-10 12:14:21,886 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 12:14:21,887 INFO L399 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 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] [2019-09-10 12:14:21,887 INFO L418 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 12:14:21,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 12:14:21,887 INFO L82 PathProgramCache]: Analyzing trace with hash 201455321, now seen corresponding path program 1 times [2019-09-10 12:14:21,887 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 12:14:21,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:14:21,890 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 12:14:21,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:14:21,890 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 12:14:21,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 12:14:22,162 INFO L134 CoverageAnalysis]: Checked inductivity of 583 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2019-09-10 12:14:22,162 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 12:14:22,163 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 12:14:22,163 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 12:14:22,164 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 12:14:22,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 12:14:22,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 12:14:22,164 INFO L87 Difference]: Start difference. First operand 2860 states and 3649 transitions. Second operand 3 states. [2019-09-10 12:14:22,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 12:14:22,360 INFO L93 Difference]: Finished difference Result 2871 states and 3655 transitions. [2019-09-10 12:14:22,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 12:14:22,361 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 295 [2019-09-10 12:14:22,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 12:14:22,376 INFO L225 Difference]: With dead ends: 2871 [2019-09-10 12:14:22,376 INFO L226 Difference]: Without dead ends: 2869 [2019-09-10 12:14:22,377 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 12:14:22,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2869 states. [2019-09-10 12:14:22,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2869 to 2850. [2019-09-10 12:14:22,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2850 states. [2019-09-10 12:14:22,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2850 states to 2850 states and 3633 transitions. [2019-09-10 12:14:22,459 INFO L78 Accepts]: Start accepts. Automaton has 2850 states and 3633 transitions. Word has length 295 [2019-09-10 12:14:22,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 12:14:22,460 INFO L475 AbstractCegarLoop]: Abstraction has 2850 states and 3633 transitions. [2019-09-10 12:14:22,460 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 12:14:22,460 INFO L276 IsEmpty]: Start isEmpty. Operand 2850 states and 3633 transitions. [2019-09-10 12:14:22,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2019-09-10 12:14:22,467 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 12:14:22,467 INFO L399 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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] [2019-09-10 12:14:22,467 INFO L418 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 12:14:22,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 12:14:22,468 INFO L82 PathProgramCache]: Analyzing trace with hash 1283149470, now seen corresponding path program 1 times [2019-09-10 12:14:22,468 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 12:14:22,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:14:22,472 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 12:14:22,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:14:22,472 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 12:14:22,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 12:14:22,874 INFO L134 CoverageAnalysis]: Checked inductivity of 655 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 652 trivial. 0 not checked. [2019-09-10 12:14:22,874 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 12:14:22,874 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 12:14:22,874 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 12:14:22,875 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 12:14:22,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 12:14:22,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 12:14:22,876 INFO L87 Difference]: Start difference. First operand 2850 states and 3633 transitions. Second operand 7 states. [2019-09-10 12:14:23,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 12:14:23,159 INFO L93 Difference]: Finished difference Result 2874 states and 3655 transitions. [2019-09-10 12:14:23,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 12:14:23,160 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 310 [2019-09-10 12:14:23,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 12:14:23,176 INFO L225 Difference]: With dead ends: 2874 [2019-09-10 12:14:23,176 INFO L226 Difference]: Without dead ends: 2863 [2019-09-10 12:14:23,177 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 12:14:23,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2863 states. [2019-09-10 12:14:23,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2863 to 2852. [2019-09-10 12:14:23,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2852 states. [2019-09-10 12:14:23,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 3631 transitions. [2019-09-10 12:14:23,279 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 3631 transitions. Word has length 310 [2019-09-10 12:14:23,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 12:14:23,280 INFO L475 AbstractCegarLoop]: Abstraction has 2852 states and 3631 transitions. [2019-09-10 12:14:23,280 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 12:14:23,280 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 3631 transitions. [2019-09-10 12:14:23,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2019-09-10 12:14:23,288 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 12:14:23,288 INFO L399 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1] [2019-09-10 12:14:23,288 INFO L418 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 12:14:23,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 12:14:23,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1881382031, now seen corresponding path program 1 times [2019-09-10 12:14:23,289 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 12:14:23,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:14:23,292 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 12:14:23,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:14:23,292 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 12:14:23,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 12:14:23,627 INFO L134 CoverageAnalysis]: Checked inductivity of 655 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 655 trivial. 0 not checked. [2019-09-10 12:14:23,628 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 12:14:23,628 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 12:14:23,628 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 12:14:23,629 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 12:14:23,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 12:14:23,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 12:14:23,630 INFO L87 Difference]: Start difference. First operand 2852 states and 3631 transitions. Second operand 3 states. [2019-09-10 12:14:23,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 12:14:23,850 INFO L93 Difference]: Finished difference Result 2857 states and 3633 transitions. [2019-09-10 12:14:23,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 12:14:23,851 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 339 [2019-09-10 12:14:23,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 12:14:23,867 INFO L225 Difference]: With dead ends: 2857 [2019-09-10 12:14:23,868 INFO L226 Difference]: Without dead ends: 2857 [2019-09-10 12:14:23,869 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 12:14:23,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2857 states. [2019-09-10 12:14:23,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2857 to 2851. [2019-09-10 12:14:23,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2851 states. [2019-09-10 12:14:23,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2851 states to 2851 states and 3628 transitions. [2019-09-10 12:14:23,966 INFO L78 Accepts]: Start accepts. Automaton has 2851 states and 3628 transitions. Word has length 339 [2019-09-10 12:14:23,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 12:14:23,967 INFO L475 AbstractCegarLoop]: Abstraction has 2851 states and 3628 transitions. [2019-09-10 12:14:23,967 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 12:14:23,967 INFO L276 IsEmpty]: Start isEmpty. Operand 2851 states and 3628 transitions. [2019-09-10 12:14:23,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2019-09-10 12:14:23,978 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 12:14:23,978 INFO L399 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:14:23,979 INFO L418 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 12:14:23,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 12:14:23,979 INFO L82 PathProgramCache]: Analyzing trace with hash 1076184062, now seen corresponding path program 1 times [2019-09-10 12:14:23,979 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 12:14:23,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:14:23,982 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 12:14:23,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:14:23,983 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 12:14:24,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 12:14:24,427 INFO L134 CoverageAnalysis]: Checked inductivity of 655 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 652 trivial. 0 not checked. [2019-09-10 12:14:24,428 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 12:14:24,428 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 12:14:24,428 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 12:14:24,429 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 12:14:24,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 12:14:24,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 12:14:24,430 INFO L87 Difference]: Start difference. First operand 2851 states and 3628 transitions. Second operand 3 states. [2019-09-10 12:14:24,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 12:14:24,698 INFO L93 Difference]: Finished difference Result 4141 states and 5236 transitions. [2019-09-10 12:14:24,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 12:14:24,699 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 371 [2019-09-10 12:14:24,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 12:14:24,725 INFO L225 Difference]: With dead ends: 4141 [2019-09-10 12:14:24,726 INFO L226 Difference]: Without dead ends: 4141 [2019-09-10 12:14:24,726 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 12:14:24,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4141 states. [2019-09-10 12:14:24,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4141 to 4060. [2019-09-10 12:14:24,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4060 states. [2019-09-10 12:14:24,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4060 states to 4060 states and 5149 transitions. [2019-09-10 12:14:24,847 INFO L78 Accepts]: Start accepts. Automaton has 4060 states and 5149 transitions. Word has length 371 [2019-09-10 12:14:24,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 12:14:24,848 INFO L475 AbstractCegarLoop]: Abstraction has 4060 states and 5149 transitions. [2019-09-10 12:14:24,848 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 12:14:24,848 INFO L276 IsEmpty]: Start isEmpty. Operand 4060 states and 5149 transitions. [2019-09-10 12:14:24,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2019-09-10 12:14:24,859 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 12:14:24,860 INFO L399 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:14:24,860 INFO L418 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 12:14:24,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 12:14:24,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1257917440, now seen corresponding path program 1 times [2019-09-10 12:14:24,861 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 12:14:24,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:14:24,867 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 12:14:24,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:14:24,867 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 12:14:24,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 12:14:25,294 INFO L134 CoverageAnalysis]: Checked inductivity of 655 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 655 trivial. 0 not checked. [2019-09-10 12:14:25,294 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 12:14:25,295 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 12:14:25,295 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 12:14:25,295 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 12:14:25,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 12:14:25,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 12:14:25,297 INFO L87 Difference]: Start difference. First operand 4060 states and 5149 transitions. Second operand 3 states. [2019-09-10 12:14:25,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 12:14:25,582 INFO L93 Difference]: Finished difference Result 4062 states and 5118 transitions. [2019-09-10 12:14:25,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 12:14:25,582 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 370 [2019-09-10 12:14:25,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 12:14:25,608 INFO L225 Difference]: With dead ends: 4062 [2019-09-10 12:14:25,608 INFO L226 Difference]: Without dead ends: 4062 [2019-09-10 12:14:25,609 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 12:14:25,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4062 states. [2019-09-10 12:14:25,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4062 to 4054. [2019-09-10 12:14:25,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4054 states. [2019-09-10 12:14:25,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4054 states to 4054 states and 5111 transitions. [2019-09-10 12:14:25,717 INFO L78 Accepts]: Start accepts. Automaton has 4054 states and 5111 transitions. Word has length 370 [2019-09-10 12:14:25,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 12:14:25,718 INFO L475 AbstractCegarLoop]: Abstraction has 4054 states and 5111 transitions. [2019-09-10 12:14:25,718 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 12:14:25,718 INFO L276 IsEmpty]: Start isEmpty. Operand 4054 states and 5111 transitions. [2019-09-10 12:14:25,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2019-09-10 12:14:25,728 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 12:14:25,728 INFO L399 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:14:25,728 INFO L418 AbstractCegarLoop]: === Iteration 14 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 12:14:25,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 12:14:25,729 INFO L82 PathProgramCache]: Analyzing trace with hash 467563457, now seen corresponding path program 1 times [2019-09-10 12:14:25,729 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 12:14:25,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:14:25,733 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 12:14:25,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:14:25,733 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 12:14:25,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 12:14:26,096 INFO L134 CoverageAnalysis]: Checked inductivity of 655 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 655 trivial. 0 not checked. [2019-09-10 12:14:26,097 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 12:14:26,097 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 12:14:26,098 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 12:14:26,099 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 12:14:26,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 12:14:26,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 12:14:26,100 INFO L87 Difference]: Start difference. First operand 4054 states and 5111 transitions. Second operand 7 states. [2019-09-10 12:14:26,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 12:14:26,180 INFO L93 Difference]: Finished difference Result 3705 states and 4623 transitions. [2019-09-10 12:14:26,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 12:14:26,180 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 370 [2019-09-10 12:14:26,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 12:14:26,200 INFO L225 Difference]: With dead ends: 3705 [2019-09-10 12:14:26,200 INFO L226 Difference]: Without dead ends: 3705 [2019-09-10 12:14:26,202 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 12:14:26,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3705 states. [2019-09-10 12:14:26,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3705 to 3701. [2019-09-10 12:14:26,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3701 states. [2019-09-10 12:14:26,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3701 states to 3701 states and 4619 transitions. [2019-09-10 12:14:26,312 INFO L78 Accepts]: Start accepts. Automaton has 3701 states and 4619 transitions. Word has length 370 [2019-09-10 12:14:26,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 12:14:26,312 INFO L475 AbstractCegarLoop]: Abstraction has 3701 states and 4619 transitions. [2019-09-10 12:14:26,313 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 12:14:26,313 INFO L276 IsEmpty]: Start isEmpty. Operand 3701 states and 4619 transitions. [2019-09-10 12:14:26,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2019-09-10 12:14:26,323 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 12:14:26,324 INFO L399 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 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] [2019-09-10 12:14:26,324 INFO L418 AbstractCegarLoop]: === Iteration 15 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 12:14:26,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 12:14:26,325 INFO L82 PathProgramCache]: Analyzing trace with hash -2079234813, now seen corresponding path program 1 times [2019-09-10 12:14:26,325 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 12:14:26,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:14:26,328 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 12:14:26,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:14:26,328 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 12:14:26,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 12:14:26,710 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 664 trivial. 0 not checked. [2019-09-10 12:14:26,711 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 12:14:26,711 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 12:14:26,711 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 12:14:26,712 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 12:14:26,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 12:14:26,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 12:14:26,714 INFO L87 Difference]: Start difference. First operand 3701 states and 4619 transitions. Second operand 7 states. [2019-09-10 12:14:26,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 12:14:26,791 INFO L93 Difference]: Finished difference Result 3698 states and 4614 transitions. [2019-09-10 12:14:26,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 12:14:26,791 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 381 [2019-09-10 12:14:26,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 12:14:26,818 INFO L225 Difference]: With dead ends: 3698 [2019-09-10 12:14:26,819 INFO L226 Difference]: Without dead ends: 3698 [2019-09-10 12:14:26,821 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 12:14:26,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3698 states. [2019-09-10 12:14:26,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3698 to 3694. [2019-09-10 12:14:26,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3694 states. [2019-09-10 12:14:26,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3694 states to 3694 states and 4610 transitions. [2019-09-10 12:14:26,986 INFO L78 Accepts]: Start accepts. Automaton has 3694 states and 4610 transitions. Word has length 381 [2019-09-10 12:14:26,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 12:14:26,987 INFO L475 AbstractCegarLoop]: Abstraction has 3694 states and 4610 transitions. [2019-09-10 12:14:26,987 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 12:14:26,987 INFO L276 IsEmpty]: Start isEmpty. Operand 3694 states and 4610 transitions. [2019-09-10 12:14:27,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2019-09-10 12:14:27,003 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 12:14:27,004 INFO L399 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:14:27,004 INFO L418 AbstractCegarLoop]: === Iteration 16 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 12:14:27,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 12:14:27,005 INFO L82 PathProgramCache]: Analyzing trace with hash -688784290, now seen corresponding path program 1 times [2019-09-10 12:14:27,005 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 12:14:27,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:14:27,008 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 12:14:27,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:14:27,008 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 12:14:27,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 12:14:27,364 INFO L134 CoverageAnalysis]: Checked inductivity of 698 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 681 trivial. 0 not checked. [2019-09-10 12:14:27,366 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 12:14:27,366 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 12:14:27,366 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 12:14:27,367 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 12:14:27,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 12:14:27,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 12:14:27,368 INFO L87 Difference]: Start difference. First operand 3694 states and 4610 transitions. Second operand 3 states. [2019-09-10 12:14:27,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 12:14:27,407 INFO L93 Difference]: Finished difference Result 3697 states and 4604 transitions. [2019-09-10 12:14:27,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 12:14:27,408 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 442 [2019-09-10 12:14:27,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 12:14:27,420 INFO L225 Difference]: With dead ends: 3697 [2019-09-10 12:14:27,421 INFO L226 Difference]: Without dead ends: 3697 [2019-09-10 12:14:27,421 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 12:14:27,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3697 states. [2019-09-10 12:14:27,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3697 to 3694. [2019-09-10 12:14:27,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3694 states. [2019-09-10 12:14:27,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3694 states to 3694 states and 4601 transitions. [2019-09-10 12:14:27,505 INFO L78 Accepts]: Start accepts. Automaton has 3694 states and 4601 transitions. Word has length 442 [2019-09-10 12:14:27,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 12:14:27,505 INFO L475 AbstractCegarLoop]: Abstraction has 3694 states and 4601 transitions. [2019-09-10 12:14:27,506 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 12:14:27,506 INFO L276 IsEmpty]: Start isEmpty. Operand 3694 states and 4601 transitions. [2019-09-10 12:14:27,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2019-09-10 12:14:27,520 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 12:14:27,521 INFO L399 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:14:27,522 INFO L418 AbstractCegarLoop]: === Iteration 17 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 12:14:27,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 12:14:27,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1442207147, now seen corresponding path program 1 times [2019-09-10 12:14:27,522 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 12:14:27,525 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:14:27,525 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 12:14:27,525 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:14:27,525 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 12:14:27,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 12:14:28,020 INFO L134 CoverageAnalysis]: Checked inductivity of 698 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 681 trivial. 0 not checked. [2019-09-10 12:14:28,020 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 12:14:28,021 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 12:14:28,021 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 12:14:28,022 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 12:14:28,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 12:14:28,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 12:14:28,022 INFO L87 Difference]: Start difference. First operand 3694 states and 4601 transitions. Second operand 7 states. [2019-09-10 12:14:28,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 12:14:28,087 INFO L93 Difference]: Finished difference Result 3693 states and 4599 transitions. [2019-09-10 12:14:28,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 12:14:28,087 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 445 [2019-09-10 12:14:28,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 12:14:28,100 INFO L225 Difference]: With dead ends: 3693 [2019-09-10 12:14:28,100 INFO L226 Difference]: Without dead ends: 3693 [2019-09-10 12:14:28,101 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 12:14:28,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3693 states. [2019-09-10 12:14:28,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3693 to 3691. [2019-09-10 12:14:28,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3691 states. [2019-09-10 12:14:28,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3691 states to 3691 states and 4597 transitions. [2019-09-10 12:14:28,181 INFO L78 Accepts]: Start accepts. Automaton has 3691 states and 4597 transitions. Word has length 445 [2019-09-10 12:14:28,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 12:14:28,181 INFO L475 AbstractCegarLoop]: Abstraction has 3691 states and 4597 transitions. [2019-09-10 12:14:28,181 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 12:14:28,182 INFO L276 IsEmpty]: Start isEmpty. Operand 3691 states and 4597 transitions. [2019-09-10 12:14:28,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2019-09-10 12:14:28,190 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 12:14:28,190 INFO L399 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:14:28,190 INFO L418 AbstractCegarLoop]: === Iteration 18 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 12:14:28,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 12:14:28,191 INFO L82 PathProgramCache]: Analyzing trace with hash -394108846, now seen corresponding path program 1 times [2019-09-10 12:14:28,191 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 12:14:28,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:14:28,194 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 12:14:28,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:14:28,194 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 12:14:28,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 12:14:28,656 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked. [2019-09-10 12:14:28,657 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 12:14:28,657 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 12:14:28,657 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 12:14:28,659 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 12:14:28,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 12:14:28,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 12:14:28,662 INFO L87 Difference]: Start difference. First operand 3691 states and 4597 transitions. Second operand 7 states. [2019-09-10 12:14:28,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 12:14:28,731 INFO L93 Difference]: Finished difference Result 3562 states and 4433 transitions. [2019-09-10 12:14:28,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 12:14:28,732 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 454 [2019-09-10 12:14:28,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 12:14:28,746 INFO L225 Difference]: With dead ends: 3562 [2019-09-10 12:14:28,746 INFO L226 Difference]: Without dead ends: 3562 [2019-09-10 12:14:28,746 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 12:14:28,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3562 states. [2019-09-10 12:14:28,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3562 to 3560. [2019-09-10 12:14:28,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3560 states. [2019-09-10 12:14:28,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3560 states to 3560 states and 4431 transitions. [2019-09-10 12:14:28,821 INFO L78 Accepts]: Start accepts. Automaton has 3560 states and 4431 transitions. Word has length 454 [2019-09-10 12:14:28,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 12:14:28,822 INFO L475 AbstractCegarLoop]: Abstraction has 3560 states and 4431 transitions. [2019-09-10 12:14:28,822 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 12:14:28,822 INFO L276 IsEmpty]: Start isEmpty. Operand 3560 states and 4431 transitions. [2019-09-10 12:14:28,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2019-09-10 12:14:28,832 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 12:14:28,832 INFO L399 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:14:28,833 INFO L418 AbstractCegarLoop]: === Iteration 19 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 12:14:28,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 12:14:28,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1179539241, now seen corresponding path program 1 times [2019-09-10 12:14:28,833 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 12:14:28,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:14:28,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 12:14:28,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:14:28,836 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 12:14:28,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 12:14:29,406 INFO L134 CoverageAnalysis]: Checked inductivity of 678 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 678 trivial. 0 not checked. [2019-09-10 12:14:29,407 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 12:14:29,407 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 12:14:29,407 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 12:14:29,408 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 12:14:29,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 12:14:29,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 12:14:29,409 INFO L87 Difference]: Start difference. First operand 3560 states and 4431 transitions. Second operand 7 states. [2019-09-10 12:14:29,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 12:14:29,471 INFO L93 Difference]: Finished difference Result 3551 states and 4419 transitions. [2019-09-10 12:14:29,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 12:14:29,472 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 474 [2019-09-10 12:14:29,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 12:14:29,485 INFO L225 Difference]: With dead ends: 3551 [2019-09-10 12:14:29,485 INFO L226 Difference]: Without dead ends: 3551 [2019-09-10 12:14:29,486 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 12:14:29,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3551 states. [2019-09-10 12:14:29,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3551 to 3549. [2019-09-10 12:14:29,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3549 states. [2019-09-10 12:14:29,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3549 states to 3549 states and 4416 transitions. [2019-09-10 12:14:29,557 INFO L78 Accepts]: Start accepts. Automaton has 3549 states and 4416 transitions. Word has length 474 [2019-09-10 12:14:29,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 12:14:29,558 INFO L475 AbstractCegarLoop]: Abstraction has 3549 states and 4416 transitions. [2019-09-10 12:14:29,558 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 12:14:29,558 INFO L276 IsEmpty]: Start isEmpty. Operand 3549 states and 4416 transitions. [2019-09-10 12:14:29,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2019-09-10 12:14:29,568 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 12:14:29,568 INFO L399 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:14:29,569 INFO L418 AbstractCegarLoop]: === Iteration 20 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 12:14:29,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 12:14:29,569 INFO L82 PathProgramCache]: Analyzing trace with hash -395200200, now seen corresponding path program 1 times [2019-09-10 12:14:29,569 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 12:14:29,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:14:29,572 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 12:14:29,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 12:14:29,572 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 12:14:29,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 12:14:29,942 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 698 trivial. 0 not checked. [2019-09-10 12:14:29,943 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 12:14:29,943 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 12:14:29,943 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 12:14:29,944 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 12:14:29,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 12:14:29,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 12:14:29,944 INFO L87 Difference]: Start difference. First operand 3549 states and 4416 transitions. Second operand 7 states. [2019-09-10 12:14:30,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 12:14:30,003 INFO L93 Difference]: Finished difference Result 2227 states and 2740 transitions. [2019-09-10 12:14:30,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 12:14:30,004 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 486 [2019-09-10 12:14:30,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 12:14:30,005 INFO L225 Difference]: With dead ends: 2227 [2019-09-10 12:14:30,005 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 12:14:30,006 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 12:14:30,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 12:14:30,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 12:14:30,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 12:14:30,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 12:14:30,007 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 486 [2019-09-10 12:14:30,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 12:14:30,008 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 12:14:30,008 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 12:14:30,008 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 12:14:30,008 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 12:14:30,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 12:14:30 BoogieIcfgContainer [2019-09-10 12:14:30,017 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 12:14:30,021 INFO L168 Benchmark]: Toolchain (without parser) took 20110.85 ms. Allocated memory was 141.6 MB in the beginning and 914.9 MB in the end (delta: 773.3 MB). Free memory was 82.3 MB in the beginning and 346.7 MB in the end (delta: -264.3 MB). Peak memory consumption was 509.0 MB. Max. memory is 7.1 GB. [2019-09-10 12:14:30,027 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 141.6 MB. Free memory was 107.7 MB in the beginning and 107.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-09-10 12:14:30,028 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2658.26 ms. Allocated memory was 141.6 MB in the beginning and 256.4 MB in the end (delta: 114.8 MB). Free memory was 82.1 MB in the beginning and 167.1 MB in the end (delta: -84.9 MB). Peak memory consumption was 108.2 MB. Max. memory is 7.1 GB. [2019-09-10 12:14:30,029 INFO L168 Benchmark]: Boogie Preprocessor took 367.35 ms. Allocated memory is still 256.4 MB. Free memory was 167.1 MB in the beginning and 145.9 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. [2019-09-10 12:14:30,029 INFO L168 Benchmark]: RCFGBuilder took 3827.08 ms. Allocated memory was 256.4 MB in the beginning and 342.4 MB in the end (delta: 86.0 MB). Free memory was 145.9 MB in the beginning and 203.2 MB in the end (delta: -57.3 MB). Peak memory consumption was 160.0 MB. Max. memory is 7.1 GB. [2019-09-10 12:14:30,033 INFO L168 Benchmark]: TraceAbstraction took 13251.95 ms. Allocated memory was 342.4 MB in the beginning and 914.9 MB in the end (delta: 572.5 MB). Free memory was 203.2 MB in the beginning and 346.7 MB in the end (delta: -143.5 MB). Peak memory consumption was 429.0 MB. Max. memory is 7.1 GB. [2019-09-10 12:14:30,044 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 141.6 MB. Free memory was 107.7 MB in the beginning and 107.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2658.26 ms. Allocated memory was 141.6 MB in the beginning and 256.4 MB in the end (delta: 114.8 MB). Free memory was 82.1 MB in the beginning and 167.1 MB in the end (delta: -84.9 MB). Peak memory consumption was 108.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 367.35 ms. Allocated memory is still 256.4 MB. Free memory was 167.1 MB in the beginning and 145.9 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3827.08 ms. Allocated memory was 256.4 MB in the beginning and 342.4 MB in the end (delta: 86.0 MB). Free memory was 145.9 MB in the beginning and 203.2 MB in the end (delta: -57.3 MB). Peak memory consumption was 160.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13251.95 ms. Allocated memory was 342.4 MB in the beginning and 914.9 MB in the end (delta: 572.5 MB). Free memory was 203.2 MB in the beginning and 346.7 MB in the end (delta: -143.5 MB). Peak memory consumption was 429.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5326]: 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 198 procedures, 1510 locations, 1 error locations. SAFE Result, 13.1s OverallTime, 20 OverallIterations, 9 TraceHistogramMax, 3.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 29945 SDtfs, 11058 SDslu, 64861 SDs, 0 SdLazy, 294 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4060occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 20 MinimizatonAttempts, 226 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.4s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 6451 NumberOfCodeBlocks, 6451 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 6431 ConstructedInterpolants, 0 QuantifiedInterpolants, 2487941 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 11801/11801 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...