/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-4ed3cba-1-100_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 13:47:30,590 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 13:47:30,594 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 13:47:30,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 13:47:30,657 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 13:47:30,664 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 13:47:30,667 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 13:47:30,673 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 13:47:30,677 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 13:47:30,684 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 13:47:30,685 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 13:47:30,687 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 13:47:30,687 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 13:47:30,690 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 13:47:30,692 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 13:47:30,694 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 13:47:30,696 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 13:47:30,699 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 13:47:30,707 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 13:47:30,731 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 13:47:30,733 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 13:47:30,735 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 13:47:30,736 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 13:47:30,739 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 13:47:30,757 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 13:47:30,758 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 13:47:30,758 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 13:47:30,760 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 13:47:30,761 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 13:47:30,762 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 13:47:30,762 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 13:47:30,763 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 13:47:30,765 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 13:47:30,766 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 13:47:30,768 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 13:47:30,768 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 13:47:30,769 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 13:47:30,769 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 13:47:30,769 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 13:47:30,770 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 13:47:30,771 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 13:47:30,779 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-10-27 13:47:30,832 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 13:47:30,832 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 13:47:30,837 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 13:47:30,837 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 13:47:30,837 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 13:47:30,838 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 13:47:30,838 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 13:47:30,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 13:47:30,838 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 13:47:30,838 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 13:47:30,840 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 13:47:30,840 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 13:47:30,840 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 13:47:30,840 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 13:47:30,840 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 13:47:30,841 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 13:47:30,841 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 13:47:30,841 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 13:47:30,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 13:47:30,841 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 13:47:30,842 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 13:47:30,842 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 13:47:30,842 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 13:47:30,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 13:47:30,842 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 13:47:30,842 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 13:47:30,843 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-27 13:47:30,843 INFO L138 SettingsManager]: * To the following directory=dump/ WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 13:47:31,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 13:47:31,334 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 13:47:31,337 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 13:47:31,339 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 13:47:31,340 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 13:47:31,341 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-4ed3cba-1-100_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2020-10-27 13:47:31,422 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/84a01460c/c240bbd3d52546088ae2e3a7b3b79230/FLAG75627d26e [2020-10-27 13:47:32,334 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 13:47:32,335 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-4ed3cba-1-100_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2020-10-27 13:47:32,378 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/84a01460c/c240bbd3d52546088ae2e3a7b3b79230/FLAG75627d26e [2020-10-27 13:47:32,815 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/84a01460c/c240bbd3d52546088ae2e3a7b3b79230 [2020-10-27 13:47:32,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 13:47:32,827 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 13:47:32,832 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 13:47:32,832 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 13:47:32,836 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 13:47:32,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:47:32" (1/1) ... [2020-10-27 13:47:32,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70851218 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:47:32, skipping insertion in model container [2020-10-27 13:47:32,843 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:47:32" (1/1) ... [2020-10-27 13:47:32,851 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 13:47:32,981 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 13:47:33,563 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name writepages at C: (*writepages)(struct address_space___0 * , struct writeback_control * ) [3504] [2020-10-27 13:47:33,565 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name readpages at C: (*readpages)(struct file___0 *filp , struct address_space___0 *mapping , struct list_head *pages , unsigned int nr_pages ) [3506-3507] [2020-10-27 13:47:33,565 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name write_begin at C: (*write_begin)(struct file___0 * , struct address_space___0 *mapping , loff_t pos , unsigned int len , unsigned int flags , struct page **pagep , void **fsdata ) [3508-3510] [2020-10-27 13:47:33,566 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name write_end at C: (*write_end)(struct file___0 * , struct address_space___0 *mapping , loff_t pos , unsigned int len , unsigned int copied , struct page *page , void *fsdata ) [3511-3512] [2020-10-27 13:47:33,567 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name bmap at C: (*bmap)(struct address_space___0 * , sector_t ) [3513] [2020-10-27 13:47:33,571 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name get_xip_mem at C: (*get_xip_mem)(struct address_space___0 * , unsigned long , int , void ** , unsigned long * ) [3519-3520] [2020-10-27 13:47:33,572 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name migratepage at C: (*migratepage)(struct address_space___0 * , struct page * , struct page * ) [3521] [2020-10-27 13:47:33,572 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name error_remove_page at C: (*error_remove_page)(struct address_space___0 * , struct page * ) [3524] [2020-10-27 13:47:33,588 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name lookup at C: *(*lookup)(struct tty_driver___0 *driver , struct inode___0 *inode , int idx ) [3838-3839] [2020-10-27 13:47:33,588 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name install at C: (*install)(struct tty_driver___0 *driver , struct tty_struct___0 *tty ) [3840] [2020-10-27 13:47:33,591 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name remove at C: (*remove)(struct tty_driver___0 *driver , struct tty_struct___0 *tty ) [3841] [2020-10-27 13:47:33,595 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name poll_init at C: (*poll_init)(struct tty_driver___0 *driver , int line , char *options ) [3872] [2020-10-27 13:47:33,596 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name poll_get_char at C: (*poll_get_char)(struct tty_driver___0 *driver , int line ) [3873] [2020-10-27 13:47:33,597 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name poll_put_char at C: (*poll_put_char)(struct tty_driver___0 *driver , int line , char ch ) [3874] [2020-10-27 13:47:33,599 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name carrier_raised at C: (*carrier_raised)(struct tty_port___0 *port ) [3934] [2020-10-27 13:47:33,599 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name dtr_rts at C: (*dtr_rts)(struct tty_port___0 *port , int raise ) [3935] [2020-10-27 13:47:33,599 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name shutdown at C: (*shutdown)(struct tty_port___0 *port ) [3936] [2020-10-27 13:47:33,600 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name drop at C: (*drop)(struct tty_port___0 *port ) [3937] [2020-10-27 13:47:33,600 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name activate at C: (*activate)(struct tty_port___0 *port , struct tty_struct___0 *tty ) [3938] [2020-10-27 13:47:33,600 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name destruct at C: (*destruct)(struct tty_port___0 *port ) [3939] [2020-10-27 13:47:34,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 13:47:34,310 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 13:47:34,503 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name writepages at C: (*writepages)(struct address_space___0 * , struct writeback_control * ) [3504] [2020-10-27 13:47:34,504 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name readpages at C: (*readpages)(struct file___0 *filp , struct address_space___0 *mapping , struct list_head *pages , unsigned int nr_pages ) [3506-3507] [2020-10-27 13:47:34,504 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name write_begin at C: (*write_begin)(struct file___0 * , struct address_space___0 *mapping , loff_t pos , unsigned int len , unsigned int flags , struct page **pagep , void **fsdata ) [3508-3510] [2020-10-27 13:47:34,504 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name write_end at C: (*write_end)(struct file___0 * , struct address_space___0 *mapping , loff_t pos , unsigned int len , unsigned int copied , struct page *page , void *fsdata ) [3511-3512] [2020-10-27 13:47:34,505 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name bmap at C: (*bmap)(struct address_space___0 * , sector_t ) [3513] [2020-10-27 13:47:34,506 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name get_xip_mem at C: (*get_xip_mem)(struct address_space___0 * , unsigned long , int , void ** , unsigned long * ) [3519-3520] [2020-10-27 13:47:34,507 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name migratepage at C: (*migratepage)(struct address_space___0 * , struct page * , struct page * ) [3521] [2020-10-27 13:47:34,507 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name error_remove_page at C: (*error_remove_page)(struct address_space___0 * , struct page * ) [3524] [2020-10-27 13:47:34,517 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name lookup at C: *(*lookup)(struct tty_driver___0 *driver , struct inode___0 *inode , int idx ) [3838-3839] [2020-10-27 13:47:34,517 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name install at C: (*install)(struct tty_driver___0 *driver , struct tty_struct___0 *tty ) [3840] [2020-10-27 13:47:34,518 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name remove at C: (*remove)(struct tty_driver___0 *driver , struct tty_struct___0 *tty ) [3841] [2020-10-27 13:47:34,519 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name poll_init at C: (*poll_init)(struct tty_driver___0 *driver , int line , char *options ) [3872] [2020-10-27 13:47:34,521 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name poll_get_char at C: (*poll_get_char)(struct tty_driver___0 *driver , int line ) [3873] [2020-10-27 13:47:34,522 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name poll_put_char at C: (*poll_put_char)(struct tty_driver___0 *driver , int line , char ch ) [3874] [2020-10-27 13:47:34,523 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name carrier_raised at C: (*carrier_raised)(struct tty_port___0 *port ) [3934] [2020-10-27 13:47:34,524 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name dtr_rts at C: (*dtr_rts)(struct tty_port___0 *port , int raise ) [3935] [2020-10-27 13:47:34,525 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name shutdown at C: (*shutdown)(struct tty_port___0 *port ) [3936] [2020-10-27 13:47:34,525 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name drop at C: (*drop)(struct tty_port___0 *port ) [3937] [2020-10-27 13:47:34,525 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name activate at C: (*activate)(struct tty_port___0 *port , struct tty_struct___0 *tty ) [3938] [2020-10-27 13:47:34,526 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name destruct at C: (*destruct)(struct tty_port___0 *port ) [3939] [2020-10-27 13:47:34,695 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 13:47:34,854 INFO L208 MainTranslator]: Completed translation [2020-10-27 13:47:34,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:47:34 WrapperNode [2020-10-27 13:47:34,855 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 13:47:34,856 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 13:47:34,856 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 13:47:34,857 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 13:47:34,871 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:47:34" (1/1) ... [2020-10-27 13:47:34,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:47:34" (1/1) ... [2020-10-27 13:47:34,993 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:47:34" (1/1) ... [2020-10-27 13:47:34,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:47:34" (1/1) ... [2020-10-27 13:47:35,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:47:34" (1/1) ... [2020-10-27 13:47:35,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:47:34" (1/1) ... [2020-10-27 13:47:35,119 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:47:34" (1/1) ... [2020-10-27 13:47:35,147 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 13:47:35,151 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 13:47:35,152 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 13:47:35,152 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 13:47:35,153 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:47:34" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-27 13:47:35,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 13:47:35,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 13:47:35,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2020-10-27 13:47:35,239 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 13:47:35,239 INFO L138 BoogieDeclarations]: Found implementation of procedure get_order [2020-10-27 13:47:35,240 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-27 13:47:35,240 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2020-10-27 13:47:35,240 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2020-10-27 13:47:35,240 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemleak_alloc [2020-10-27 13:47:35,240 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2020-10-27 13:47:35,240 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_index [2020-10-27 13:47:35,241 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_slab [2020-10-27 13:47:35,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-27 13:47:35,241 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_large [2020-10-27 13:47:35,241 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-27 13:47:35,241 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-27 13:47:35,242 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 13:47:35,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-27 13:47:35,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-27 13:47:35,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-27 13:47:35,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-27 13:47:35,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-27 13:47:35,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-27 13:47:35,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-27 13:47:35,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-27 13:47:35,244 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2020-10-27 13:47:35,244 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2020-10-27 13:47:35,244 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2020-10-27 13:47:35,244 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_in [2020-10-27 13:47:35,245 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_out [2020-10-27 13:47:35,245 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2020-10-27 13:47:35,245 INFO L138 BoogieDeclarations]: Found implementation of procedure qcprobe [2020-10-27 13:47:35,245 INFO L138 BoogieDeclarations]: Found implementation of procedure qcinit [2020-10-27 13:47:35,245 INFO L138 BoogieDeclarations]: Found implementation of procedure qcexit [2020-10-27 13:47:35,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_usb_serial_driver_1 [2020-10-27 13:47:35,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_2 [2020-10-27 13:47:35,247 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 13:47:35,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_insert_flip_string_fixed_flag_4 [2020-10-27 13:47:35,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_5 [2020-10-27 13:47:35,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_6 [2020-10-27 13:47:35,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2020-10-27 13:47:35,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-27 13:47:35,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2020-10-27 13:47:35,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_got_tty [2020-10-27 13:47:35,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_tty [2020-10-27 13:47:35,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_free_pages [2020-10-27 13:47:35,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-27 13:47:35,250 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2020-10-27 13:47:35,250 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-27 13:47:35,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-27 13:47:35,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_reset_resume_2 [2020-10-27 13:47:35,251 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2020-10-27 13:47:35,251 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-27 13:47:35,251 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string_fixed_flag [2020-10-27 13:47:35,251 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-10-27 13:47:35,251 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_enable_autosuspend [2020-10-27 13:47:35,251 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-10-27 13:47:35,251 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2020-10-27 13:47:35,251 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2020-10-27 13:47:35,252 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2020-10-27 13:47:35,252 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_register [2020-10-27 13:47:35,252 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_resume [2020-10-27 13:47:35,252 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_suspend [2020-10-27 13:47:35,252 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2020-10-27 13:47:35,252 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_chars_in_buffer [2020-10-27 13:47:35,252 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_close [2020-10-27 13:47:35,252 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_disconnect [2020-10-27 13:47:35,253 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_open [2020-10-27 13:47:35,253 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_release [2020-10-27 13:47:35,253 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_resume [2020-10-27 13:47:35,253 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_startup [2020-10-27 13:47:35,253 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_suspend [2020-10-27 13:47:35,253 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_write [2020-10-27 13:47:35,254 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_write_room [2020-10-27 13:47:35,254 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-27 13:47:35,254 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-27 13:47:35,254 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-27 13:47:35,254 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 13:47:35,254 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 13:47:35,255 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-27 13:47:35,255 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-27 13:47:35,255 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 13:47:35,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 13:47:35,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-27 13:47:35,255 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-27 13:47:35,255 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-27 13:47:35,255 INFO L130 BoogieDeclarations]: Found specification of procedure get_order [2020-10-27 13:47:35,256 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2020-10-27 13:47:35,256 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-27 13:47:35,256 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-27 13:47:35,256 INFO L130 BoogieDeclarations]: Found specification of procedure __get_free_pages [2020-10-27 13:47:35,256 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2020-10-27 13:47:35,256 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2020-10-27 13:47:35,256 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2020-10-27 13:47:35,257 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string_fixed_flag [2020-10-27 13:47:35,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_insert_flip_string_fixed_flag_4 [2020-10-27 13:47:35,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_tty [2020-10-27 13:47:35,257 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-27 13:47:35,257 INFO L130 BoogieDeclarations]: Found specification of procedure kmemleak_alloc [2020-10-27 13:47:35,257 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2020-10-27 13:47:35,257 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2020-10-27 13:47:35,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 13:47:35,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 13:47:35,258 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_index [2020-10-27 13:47:35,258 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_slab [2020-10-27 13:47:35,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-27 13:47:35,258 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-27 13:47:35,258 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2020-10-27 13:47:35,259 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_large [2020-10-27 13:47:35,259 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-27 13:47:35,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-27 13:47:35,259 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-27 13:47:35,259 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 13:47:35,259 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-27 13:47:35,259 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 13:47:35,260 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-27 13:47:35,260 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 13:47:35,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 13:47:35,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-27 13:47:35,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-27 13:47:35,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-27 13:47:35,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-27 13:47:35,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-27 13:47:35,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-27 13:47:35,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_usb_serial_driver_1 [2020-10-27 13:47:35,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_2 [2020-10-27 13:47:35,261 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2020-10-27 13:47:35,261 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2020-10-27 13:47:35,261 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2020-10-27 13:47:35,261 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_in [2020-10-27 13:47:35,261 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_out [2020-10-27 13:47:35,262 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-27 13:47:35,262 INFO L130 BoogieDeclarations]: Found specification of procedure usb_enable_autosuspend [2020-10-27 13:47:35,262 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-10-27 13:47:35,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_5 [2020-10-27 13:47:35,262 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2020-10-27 13:47:35,262 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-10-27 13:47:35,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_6 [2020-10-27 13:47:35,262 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2020-10-27 13:47:35,263 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_register [2020-10-27 13:47:35,263 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2020-10-27 13:47:35,263 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2020-10-27 13:47:35,263 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2020-10-27 13:47:35,263 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_suspend [2020-10-27 13:47:35,263 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_resume [2020-10-27 13:47:35,263 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_open [2020-10-27 13:47:35,263 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_close [2020-10-27 13:47:35,264 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_startup [2020-10-27 13:47:35,264 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_disconnect [2020-10-27 13:47:35,264 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_release [2020-10-27 13:47:35,264 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_write_room [2020-10-27 13:47:35,264 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_write [2020-10-27 13:47:35,264 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_chars_in_buffer [2020-10-27 13:47:35,264 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_suspend [2020-10-27 13:47:35,264 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_resume [2020-10-27 13:47:35,264 INFO L130 BoogieDeclarations]: Found specification of procedure qcprobe [2020-10-27 13:47:35,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 13:47:35,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 13:47:35,265 INFO L130 BoogieDeclarations]: Found specification of procedure qcinit [2020-10-27 13:47:35,265 INFO L130 BoogieDeclarations]: Found specification of procedure qcexit [2020-10-27 13:47:35,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_reset_resume_2 [2020-10-27 13:47:35,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-27 13:47:35,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-27 13:47:35,265 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 13:47:35,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-27 13:47:35,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2020-10-27 13:47:35,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2020-10-27 13:47:35,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_got_tty [2020-10-27 13:47:35,266 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 13:47:35,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 13:47:35,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 13:47:35,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-27 13:47:35,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 13:47:35,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 13:47:35,980 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-27 13:47:37,710 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2020-10-27 13:47:38,260 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 13:47:38,260 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-27 13:47:38,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:47:38 BoogieIcfgContainer [2020-10-27 13:47:38,264 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 13:47:38,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 13:47:38,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 13:47:38,270 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 13:47:38,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 01:47:32" (1/3) ... [2020-10-27 13:47:38,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60d0f2f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:47:38, skipping insertion in model container [2020-10-27 13:47:38,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:47:34" (2/3) ... [2020-10-27 13:47:38,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60d0f2f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:47:38, skipping insertion in model container [2020-10-27 13:47:38,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:47:38" (3/3) ... [2020-10-27 13:47:38,274 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-4ed3cba-1-100_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2020-10-27 13:47:38,288 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 13:47:38,294 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 13:47:38,311 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 13:47:38,344 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 13:47:38,344 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 13:47:38,345 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 13:47:38,345 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 13:47:38,345 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 13:47:38,345 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 13:47:38,345 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 13:47:38,345 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 13:47:38,379 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states. [2020-10-27 13:47:38,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-27 13:47:38,397 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 13:47:38,398 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2020-10-27 13:47:38,398 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 13:47:38,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 13:47:38,405 INFO L82 PathProgramCache]: Analyzing trace with hash 725553020, now seen corresponding path program 1 times [2020-10-27 13:47:38,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 13:47:38,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [115767460] [2020-10-27 13:47:38,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 13:47:38,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:47:39,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:47:39,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:47:39,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:47:43,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:47:43,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-27 13:47:43,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 13:47:43,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5060 [2020-10-27 13:47:43,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:47:43,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 13:47:43,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-27 13:47:43,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 13:47:43,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-27 13:47:45,063 WARN L193 SmtUtils]: Spent 868.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-27 13:47:45,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 13:47:45,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:47:45,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:47:45,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:47:45,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:47:45,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:47:45,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-10-27 13:47:45,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:47:45,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:47:45,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:47:45,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:47:45,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:47:45,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 13:47:45,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:47:45,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:47:45,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:47:45,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:47:45,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:47:45,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 13:47:45,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:47:45,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:47:45,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:47:45,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:47:45,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 30 [2020-10-27 13:47:45,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 13:47:45,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:47:45,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:47:45,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:47:45,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:47:45,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:47:45,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 13:47:45,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:47:45,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:47:45,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:47:45,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:47:45,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 13:47:45,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 13:47:45,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:47:45,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:47:45,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:47:45,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:47:45,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:47:45,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 13:47:45,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:47:45,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:47:45,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:47:45,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:47:45,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 13:47:45,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-27 13:47:45,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:47:45,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:47:45,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:47:45,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 13:47:45,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:47:45,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-27 13:47:45,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:47:45,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 13:47:45,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 13:47:45,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 13:47:45,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 13:47:45,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 13:47:45,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:47:45,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:47:45,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:47:45,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:47:45,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:47:45,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-27 13:47:45,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:47:45,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 13:47:45,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:47:45,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 13:47:45,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:47:45,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 13:47:45,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:47:45,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:47:45,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:47:45,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:47:45,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:47:45,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 13:47:45,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 13:47:45,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:47:45,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 13:47:45,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 13:47:45,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 13:47:45,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:47:45,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-27 13:47:45,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:47:45,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:47:45,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:47:45,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:47:45,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:47:45,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 13:47:45,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 13:47:45,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:47:45,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 13:47:45,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 13:47:45,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 13:47:45,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 13:47:46,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 13:47:46,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:47:46,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:47:46,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:47:46,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 13:47:46,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:47:46,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 13:47:46,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:47:46,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:47:46,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-27 13:47:46,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:47:46,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 13:47:46,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 13:47:46,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:47:46,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:47:46,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:47:46,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:47:46,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:47:46,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 13:47:46,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:47:46,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:47:46,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:47:46,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:47:46,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:47:46,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-27 13:47:46,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:47:46,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:47:46,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:47:46,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 13:47:46,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:47:46,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 13:47:46,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:47:46,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:47:46,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 13:47:46,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:47:46,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 13:47:46,134 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-27 13:47:46,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [115767460] [2020-10-27 13:47:46,137 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 13:47:46,137 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-27 13:47:46,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216798101] [2020-10-27 13:47:46,143 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 13:47:46,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 13:47:46,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 13:47:46,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-27 13:47:46,163 INFO L87 Difference]: Start difference. First operand 574 states. Second operand 13 states. [2020-10-27 13:47:47,002 WARN L193 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 325 [2020-10-27 13:47:48,362 WARN L193 SmtUtils]: Spent 872.00 ms on a formula simplification that was a NOOP. DAG size: 334 [2020-10-27 13:47:49,334 WARN L193 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 325 [2020-10-27 13:47:50,476 WARN L193 SmtUtils]: Spent 865.00 ms on a formula simplification that was a NOOP. DAG size: 338 [2020-10-27 13:47:51,456 WARN L193 SmtUtils]: Spent 861.00 ms on a formula simplification that was a NOOP. DAG size: 339 [2020-10-27 13:47:52,554 WARN L193 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 328 [2020-10-27 13:47:53,371 WARN L193 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 330 [2020-10-27 13:47:55,972 WARN L193 SmtUtils]: Spent 880.00 ms on a formula simplification that was a NOOP. DAG size: 330 [2020-10-27 13:47:58,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 13:47:58,276 INFO L93 Difference]: Finished difference Result 1075 states and 1465 transitions. [2020-10-27 13:47:58,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 13:47:58,279 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 72 [2020-10-27 13:47:58,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 13:47:58,301 INFO L225 Difference]: With dead ends: 1075 [2020-10-27 13:47:58,301 INFO L226 Difference]: Without dead ends: 509 [2020-10-27 13:47:58,311 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-10-27 13:47:58,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2020-10-27 13:47:58,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 463. [2020-10-27 13:47:58,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2020-10-27 13:47:58,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 606 transitions. [2020-10-27 13:47:58,504 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 606 transitions. Word has length 72 [2020-10-27 13:47:58,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 13:47:58,504 INFO L481 AbstractCegarLoop]: Abstraction has 463 states and 606 transitions. [2020-10-27 13:47:58,505 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 13:47:58,505 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 606 transitions. [2020-10-27 13:47:58,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-27 13:47:58,511 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 13:47:58,511 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2020-10-27 13:47:58,512 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 13:47:58,512 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 13:47:58,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 13:47:58,513 INFO L82 PathProgramCache]: Analyzing trace with hash -2064829871, now seen corresponding path program 1 times [2020-10-27 13:47:58,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 13:47:58,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1251624679] [2020-10-27 13:47:58,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 13:47:58,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:47:58,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:47:59,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:03,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:48:03,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-27 13:48:03,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 13:48:03,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5128 [2020-10-27 13:48:03,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:48:03,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 13:48:03,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-27 13:48:03,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 13:48:03,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:48:04,711 WARN L193 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-27 13:48:04,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 13:48:04,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:48:04,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:04,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:48:04,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:48:04,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:48:04,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-10-27 13:48:04,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:48:04,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:48:04,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:48:04,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:48:04,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:48:05,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 13:48:05,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:48:05,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:05,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:48:05,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:48:05,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:48:05,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 13:48:05,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:48:05,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:48:05,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:48:05,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:48:05,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:48:05,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 13:48:05,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:48:05,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:05,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:48:05,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:48:05,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:48:05,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 13:48:05,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:48:05,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:48:05,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:48:05,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:48:05,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:48:05,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 13:48:05,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:48:05,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:05,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:48:05,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:48:05,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:48:05,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 13:48:05,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:48:05,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:48:05,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:48:05,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:48:05,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 13:48:05,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-27 13:48:05,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:48:05,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:05,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:48:05,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-27 13:48:05,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:48:05,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 13:48:05,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:48:05,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:48:05,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:48:05,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:48:05,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:48:05,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 13:48:05,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:48:05,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:05,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:48:05,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 13:48:05,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:48:05,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-27 13:48:05,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:48:05,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:48:05,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:48:05,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:48:05,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:48:05,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 13:48:05,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:48:05,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:05,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:48:05,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:48:05,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:48:05,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 13:48:05,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:48:05,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:48:05,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:48:05,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:48:05,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:48:05,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-27 13:48:05,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:48:05,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:05,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:48:05,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 13:48:05,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:48:05,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-27 13:48:05,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:48:05,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 13:48:05,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 13:48:05,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 13:48:05,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:48:05,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-27 13:48:05,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:48:05,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:05,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:05,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:48:05,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 13:48:05,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 13:48:05,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-27 13:48:05,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:48:05,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 13:48:05,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 13:48:05,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 13:48:05,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:48:05,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 13:48:05,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:48:05,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:05,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:48:05,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 13:48:05,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:48:05,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 13:48:05,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:48:05,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:48:05,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-27 13:48:05,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:48:05,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:48:05,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 13:48:05,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:48:05,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:05,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:48:05,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:48:05,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:48:05,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 13:48:05,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:48:05,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:48:05,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:48:05,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:48:05,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:48:05,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 13:48:05,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:48:05,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:05,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:48:05,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 13:48:05,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:48:05,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 13:48:05,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:48:05,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:48:05,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 13:48:05,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:48:05,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:48:05,563 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-27 13:48:05,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1251624679] [2020-10-27 13:48:05,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 13:48:05,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-27 13:48:05,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062482470] [2020-10-27 13:48:05,566 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 13:48:05,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 13:48:05,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 13:48:05,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 13:48:05,574 INFO L87 Difference]: Start difference. First operand 463 states and 606 transitions. Second operand 11 states. [2020-10-27 13:48:06,357 WARN L193 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 325 [2020-10-27 13:48:07,895 WARN L193 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 328 [2020-10-27 13:48:08,678 WARN L193 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 319 [2020-10-27 13:48:09,487 WARN L193 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 321 [2020-10-27 13:48:12,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 13:48:12,997 INFO L93 Difference]: Finished difference Result 935 states and 1236 transitions. [2020-10-27 13:48:12,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 13:48:12,998 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 80 [2020-10-27 13:48:12,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 13:48:13,009 INFO L225 Difference]: With dead ends: 935 [2020-10-27 13:48:13,009 INFO L226 Difference]: Without dead ends: 510 [2020-10-27 13:48:13,012 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2020-10-27 13:48:13,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2020-10-27 13:48:13,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 464. [2020-10-27 13:48:13,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 464 states. [2020-10-27 13:48:13,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 607 transitions. [2020-10-27 13:48:13,120 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 607 transitions. Word has length 80 [2020-10-27 13:48:13,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 13:48:13,120 INFO L481 AbstractCegarLoop]: Abstraction has 464 states and 607 transitions. [2020-10-27 13:48:13,120 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 13:48:13,120 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 607 transitions. [2020-10-27 13:48:13,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-27 13:48:13,124 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 13:48:13,125 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 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] [2020-10-27 13:48:13,125 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 13:48:13,125 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 13:48:13,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 13:48:13,126 INFO L82 PathProgramCache]: Analyzing trace with hash -2041333701, now seen corresponding path program 2 times [2020-10-27 13:48:13,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 13:48:13,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [87908149] [2020-10-27 13:48:13,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 13:48:13,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:48:13,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:13,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:18,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:48:18,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-27 13:48:18,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 13:48:18,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5238 [2020-10-27 13:48:18,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:48:18,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 13:48:18,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-27 13:48:18,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 13:48:18,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:48:19,468 WARN L193 SmtUtils]: Spent 830.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-27 13:48:19,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 13:48:19,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:48:19,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:19,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:48:19,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:48:19,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:48:19,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-10-27 13:48:19,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:48:19,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:48:19,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:48:19,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:48:19,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:48:19,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 13:48:19,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:48:19,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:19,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:48:19,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:48:19,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:48:19,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 13:48:19,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:48:19,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:48:19,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:48:19,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:48:19,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:48:19,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 13:48:19,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:48:19,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:19,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:48:19,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:48:19,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:48:19,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 13:48:19,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:48:19,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:48:19,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:48:19,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:48:19,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:48:19,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 13:48:19,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:48:19,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:19,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:48:19,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:48:19,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:48:19,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 13:48:19,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:48:19,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:48:19,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:48:19,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:48:19,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:48:19,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-27 13:48:19,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:48:19,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:19,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:48:19,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-27 13:48:19,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:48:19,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 13:48:19,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:48:19,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:48:19,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:48:19,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:48:19,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:48:19,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 13:48:19,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:48:19,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:19,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:48:19,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 13:48:19,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:48:19,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 13:48:19,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:48:19,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:48:19,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:48:19,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:48:19,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:48:19,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 13:48:19,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:48:19,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:19,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:48:19,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:48:19,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:48:19,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 13:48:19,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:48:19,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:48:19,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:48:19,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:48:19,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:48:19,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-27 13:48:19,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:48:19,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:19,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:48:19,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 13:48:19,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:48:19,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-27 13:48:19,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:48:19,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 13:48:19,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 13:48:19,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 13:48:19,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:48:20,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 13:48:20,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:48:20,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:20,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:20,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:48:20,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 13:48:20,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 13:48:20,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-27 13:48:20,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:48:20,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 13:48:20,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 13:48:20,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 13:48:20,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:48:20,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-27 13:48:20,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:48:20,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:20,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:48:20,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 13:48:20,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:48:20,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 13:48:20,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:48:20,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:48:20,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-27 13:48:20,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:48:20,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:48:20,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 13:48:20,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:48:20,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:20,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:48:20,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:48:20,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:48:20,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 13:48:20,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:48:20,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:48:20,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:48:20,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:48:20,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:48:20,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 13:48:20,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:48:20,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:20,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:48:20,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 13:48:20,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:48:20,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 13:48:20,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:48:20,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:48:20,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 13:48:20,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:48:20,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:48:20,229 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-27 13:48:20,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [87908149] [2020-10-27 13:48:20,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 13:48:20,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-27 13:48:20,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910640396] [2020-10-27 13:48:20,232 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 13:48:20,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 13:48:20,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 13:48:20,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-27 13:48:20,234 INFO L87 Difference]: Start difference. First operand 464 states and 607 transitions. Second operand 12 states. [2020-10-27 13:48:21,144 WARN L193 SmtUtils]: Spent 889.00 ms on a formula simplification that was a NOOP. DAG size: 325 [2020-10-27 13:48:22,842 WARN L193 SmtUtils]: Spent 839.00 ms on a formula simplification that was a NOOP. DAG size: 328 [2020-10-27 13:48:23,676 WARN L193 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 319 [2020-10-27 13:48:24,553 WARN L193 SmtUtils]: Spent 829.00 ms on a formula simplification that was a NOOP. DAG size: 319 [2020-10-27 13:48:25,404 WARN L193 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 321 [2020-10-27 13:48:28,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 13:48:28,953 INFO L93 Difference]: Finished difference Result 937 states and 1238 transitions. [2020-10-27 13:48:28,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 13:48:28,954 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 82 [2020-10-27 13:48:28,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 13:48:28,960 INFO L225 Difference]: With dead ends: 937 [2020-10-27 13:48:28,960 INFO L226 Difference]: Without dead ends: 511 [2020-10-27 13:48:28,962 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2020-10-27 13:48:28,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2020-10-27 13:48:29,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 465. [2020-10-27 13:48:29,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 465 states. [2020-10-27 13:48:29,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 608 transitions. [2020-10-27 13:48:29,039 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 608 transitions. Word has length 82 [2020-10-27 13:48:29,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 13:48:29,039 INFO L481 AbstractCegarLoop]: Abstraction has 465 states and 608 transitions. [2020-10-27 13:48:29,039 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 13:48:29,039 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 608 transitions. [2020-10-27 13:48:29,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-27 13:48:29,042 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 13:48:29,042 INFO L422 BasicCegarLoop]: trace histogram [6, 3, 3, 3, 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] [2020-10-27 13:48:29,042 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 13:48:29,043 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 13:48:29,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 13:48:29,043 INFO L82 PathProgramCache]: Analyzing trace with hash -450693807, now seen corresponding path program 3 times [2020-10-27 13:48:29,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 13:48:29,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1264747614] [2020-10-27 13:48:29,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 13:48:29,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:48:29,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:29,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:34,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:48:34,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-27 13:48:34,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 13:48:34,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5235 [2020-10-27 13:48:34,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:48:34,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 13:48:34,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-27 13:48:34,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 13:48:34,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:48:35,281 WARN L193 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-27 13:48:35,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 13:48:35,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:48:35,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:35,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:48:35,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:48:35,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:48:35,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-27 13:48:35,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:48:35,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:48:35,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:48:35,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:48:35,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:48:35,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 13:48:35,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:48:35,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:35,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:48:35,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:48:35,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:48:35,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 13:48:35,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:48:35,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:48:35,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:48:35,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:48:35,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:48:35,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 13:48:35,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:48:35,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:35,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:48:35,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:48:35,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:48:35,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 13:48:35,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:48:35,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:48:35,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:48:35,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:48:35,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:48:35,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 13:48:35,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:48:35,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:35,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:48:35,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:48:35,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:48:35,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 13:48:35,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:48:35,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:48:35,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:48:35,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:48:35,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:48:35,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-27 13:48:35,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:48:35,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:35,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:48:35,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-27 13:48:35,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:48:35,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 13:48:35,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:48:35,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:48:35,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:48:35,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:48:35,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:48:35,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 13:48:35,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:48:35,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:35,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:48:35,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 13:48:35,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:48:35,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 13:48:35,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:48:35,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:48:35,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:48:35,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:48:35,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:48:35,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 13:48:35,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:48:35,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:35,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:48:35,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:48:35,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:48:35,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 13:48:35,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:48:35,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:48:35,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:48:35,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:48:35,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:48:35,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-27 13:48:35,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:48:35,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:35,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:48:35,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 13:48:35,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:48:35,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-27 13:48:35,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:48:35,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 13:48:35,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 13:48:35,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 13:48:35,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:48:35,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 13:48:35,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:48:35,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:35,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:35,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:48:35,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 13:48:35,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 13:48:35,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-27 13:48:35,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:48:35,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 13:48:35,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 13:48:35,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 13:48:35,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:48:35,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-27 13:48:35,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:48:36,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:36,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:48:36,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 13:48:36,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:48:36,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 13:48:36,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:48:36,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:48:36,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-27 13:48:36,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:48:36,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:48:36,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 13:48:36,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:48:36,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:36,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:48:36,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:48:36,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:48:36,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 13:48:36,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:48:36,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:48:36,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:48:36,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:48:36,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:48:36,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-27 13:48:36,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:48:36,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:48:36,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:48:36,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 13:48:36,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:48:36,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 13:48:36,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:48:36,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:48:36,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 13:48:36,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:48:36,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:48:36,067 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-27 13:48:36,068 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1264747614] [2020-10-27 13:48:36,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 13:48:36,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 13:48:36,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597868777] [2020-10-27 13:48:36,072 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 13:48:36,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 13:48:36,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 13:48:36,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-27 13:48:36,075 INFO L87 Difference]: Start difference. First operand 465 states and 608 transitions. Second operand 13 states. [2020-10-27 13:48:37,038 WARN L193 SmtUtils]: Spent 936.00 ms on a formula simplification that was a NOOP. DAG size: 325 [2020-10-27 13:48:38,620 WARN L193 SmtUtils]: Spent 844.00 ms on a formula simplification that was a NOOP. DAG size: 328 [2020-10-27 13:48:39,454 WARN L193 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 319 [2020-10-27 13:48:40,339 WARN L193 SmtUtils]: Spent 842.00 ms on a formula simplification that was a NOOP. DAG size: 319 [2020-10-27 13:48:41,190 WARN L193 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 319 [2020-10-27 13:48:42,047 WARN L193 SmtUtils]: Spent 819.00 ms on a formula simplification that was a NOOP. DAG size: 321 [2020-10-27 13:48:45,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 13:48:45,425 INFO L93 Difference]: Finished difference Result 939 states and 1240 transitions. [2020-10-27 13:48:45,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 13:48:45,426 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 84 [2020-10-27 13:48:45,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 13:48:45,432 INFO L225 Difference]: With dead ends: 939 [2020-10-27 13:48:45,432 INFO L226 Difference]: Without dead ends: 512 [2020-10-27 13:48:45,434 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=109, Invalid=311, Unknown=0, NotChecked=0, Total=420 [2020-10-27 13:48:45,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2020-10-27 13:48:45,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 466. [2020-10-27 13:48:45,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 466 states. [2020-10-27 13:48:45,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 609 transitions. [2020-10-27 13:48:45,525 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 609 transitions. Word has length 84 [2020-10-27 13:48:45,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 13:48:45,525 INFO L481 AbstractCegarLoop]: Abstraction has 466 states and 609 transitions. [2020-10-27 13:48:45,526 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 13:48:45,526 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 609 transitions. [2020-10-27 13:48:45,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-27 13:48:45,528 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 13:48:45,528 INFO L422 BasicCegarLoop]: trace histogram [8, 3, 3, 3, 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] [2020-10-27 13:48:45,529 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 13:48:45,529 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 13:48:45,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 13:48:45,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1316352187, now seen corresponding path program 4 times [2020-10-27 13:48:45,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 13:48:45,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1862875514] [2020-10-27 13:48:45,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 13:48:45,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 13:48:45,800 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 13:48:45,800 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 13:48:45,805 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 13:48:45,816 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2020-10-27 13:48:45,817 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2020-10-27 13:48:45,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 01:48:45 BoogieIcfgContainer [2020-10-27 13:48:45,840 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 13:48:45,842 INFO L168 Benchmark]: Toolchain (without parser) took 73020.27 ms. Allocated memory was 151.0 MB in the beginning and 961.5 MB in the end (delta: 810.5 MB). Free memory was 99.1 MB in the beginning and 525.1 MB in the end (delta: -426.0 MB). Peak memory consumption was 385.8 MB. Max. memory is 8.0 GB. [2020-10-27 13:48:45,843 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory is still 122.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 13:48:45,844 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2023.58 ms. Allocated memory was 151.0 MB in the beginning and 198.2 MB in the end (delta: 47.2 MB). Free memory was 98.5 MB in the beginning and 133.8 MB in the end (delta: -35.3 MB). Peak memory consumption was 28.4 MB. Max. memory is 8.0 GB. [2020-10-27 13:48:45,844 INFO L168 Benchmark]: Boogie Preprocessor took 291.06 ms. Allocated memory is still 198.2 MB. Free memory was 133.8 MB in the beginning and 148.8 MB in the end (delta: -15.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 8.0 GB. [2020-10-27 13:48:45,845 INFO L168 Benchmark]: RCFGBuilder took 3112.91 ms. Allocated memory was 198.2 MB in the beginning and 284.2 MB in the end (delta: 86.0 MB). Free memory was 148.8 MB in the beginning and 178.3 MB in the end (delta: -29.5 MB). Peak memory consumption was 109.1 MB. Max. memory is 8.0 GB. [2020-10-27 13:48:45,846 INFO L168 Benchmark]: TraceAbstraction took 67574.27 ms. Allocated memory was 284.2 MB in the beginning and 961.5 MB in the end (delta: 677.4 MB). Free memory was 177.7 MB in the beginning and 525.1 MB in the end (delta: -347.3 MB). Peak memory consumption was 330.6 MB. Max. memory is 8.0 GB. [2020-10-27 13:48:45,850 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory is still 122.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 2023.58 ms. Allocated memory was 151.0 MB in the beginning and 198.2 MB in the end (delta: 47.2 MB). Free memory was 98.5 MB in the beginning and 133.8 MB in the end (delta: -35.3 MB). Peak memory consumption was 28.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 291.06 ms. Allocated memory is still 198.2 MB. Free memory was 133.8 MB in the beginning and 148.8 MB in the end (delta: -15.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 3112.91 ms. Allocated memory was 198.2 MB in the beginning and 284.2 MB in the end (delta: 86.0 MB). Free memory was 148.8 MB in the beginning and 178.3 MB in the end (delta: -29.5 MB). Peak memory consumption was 109.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 67574.27 ms. Allocated memory was 284.2 MB in the beginning and 961.5 MB in the end (delta: 677.4 MB). Free memory was 177.7 MB in the beginning and 525.1 MB in the end (delta: -347.3 MB). Peak memory consumption was 330.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of large string literal at line 4684. Possible FailurePath: [L4404] int LDV_IN_INTERRUPT = 1; [L4405] int ldv_state_variable_2 ; [L4406] int ref_cnt ; [L4407] struct usb_serial *qcdevice_group1 ; [L4408] int ldv_state_variable_1 ; [L4409] struct usb_interface *qcdriver_group1 ; [L4410] int usb_counter ; [L4411] struct tty_struct *qcdevice_group0 ; [L4412] struct usb_serial_port *qcdevice_group2 ; [L4413] int ldv_state_variable_0 ; [L4507] static int debug ; [L4508-L4681] static struct usb_device_id const id_table[59U] = { {3U, 1478U, 37393U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37394U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1008U, 7965U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1008U, 8221U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1242U, 9485U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1242U, 9484U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 16700U, 33138U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 16700U, 33137U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 5136U, 40961U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 5136U, 40968U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2821U, 6006U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2821U, 6004U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 6610U, 65523U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 6610U, 65522U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 5463U, 2688U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 36865U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 36866U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37378U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37379U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37410U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 36872U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37377U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37409U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37425U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 8005U, 1U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 16700U, 33157U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 16700U, 33158U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37384U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37387U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37412U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37413U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37444U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37445U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1008U, 9245U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1008U, 9501U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37396U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37397U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37476U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37477U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37428U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37429U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37492U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37493U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4505U, 36864U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4505U, 36865U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4505U, 36866U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4505U, 36867U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4505U, 36868U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4505U, 36869U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4505U, 36870U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4505U, 36871U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4505U, 36872U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4505U, 36873U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4505U, 36874U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 5848U, 32769U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 5848U, 32770U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37380U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37381U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}}; [L4682] struct usb_device_id const __mod_usb_device_table ; [L4683-L4697] static struct usb_driver qcdriver = {"qcserial", & usb_serial_probe, & usb_serial_disconnect, 0, & usb_serial_suspend, & usb_serial_resume, 0, 0, 0, (struct usb_device_id const *)(& id_table), {{{{{0U}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}}, {{0, 0, 0, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, 0}, (unsigned char)0, 1U, (unsigned char)0}; [L4833-L4839] static struct usb_serial_driver qcdevice = {"Qualcomm USB modem", (struct usb_device_id const *)(& id_table), 1, {0, 0}, {"qcserial", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, & qcdriver, {{{{{0U}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}}, 0UL, 0UL, & qcprobe, & usb_wwan_startup, 0, & usb_wwan_disconnect, & usb_wwan_release, 0, 0, & usb_wwan_suspend, & usb_wwan_resume, & usb_wwan_open, & usb_wwan_close, & usb_wwan_write, & usb_wwan_write_room, 0, 0, 0, & usb_wwan_chars_in_buffer, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; [L4867] int ldv_retval_9 ; [L4868] int ldv_retval_2 ; [L4869] int ldv_retval_5 ; [L4870] int ldv_retval_0 ; [L4871] int ldv_retval_4 ; [L4872] int ldv_retval_6 ; [L4874] int ldv_retval_1 ; [L4876] int ldv_retval_8 ; [L4877] int ldv_retval_3 ; [L4878] int ldv_retval_7 ; [L5297] struct tty_struct___0 *ldv_latest_tty ; [L4905] struct usb_device_id *ldvarg1 ; [L4906] void *tmp ; [L4907] unsigned char *ldvarg3 ; [L4908] void *tmp___0 ; [L4909] pm_message_t ldvarg0 ; [L4910] int ldvarg2 ; [L4911] int tmp___1 ; [L4912] pm_message_t ldvarg4 ; [L4913] struct usb_device_id *ldvarg5 ; [L4914] void *tmp___2 ; [L4915] int tmp___3 ; [L4916] int tmp___4 ; [L4917] int tmp___5 ; [L4918] int tmp___6 ; [L4920] CALL, EXPR ldv_zalloc(24UL) [L4346] void *p ; [L4347] void *tmp ; [L4348] int tmp___0 ; [L4350] tmp___0 = __VERIFIER_nondet_int() [L4351] COND TRUE tmp___0 != 0 [L4352] return ((void *)0); [L4920] RET, EXPR ldv_zalloc(24UL) [L4920] tmp = ldv_zalloc(24UL) [L4921] ldvarg1 = (struct usb_device_id *)tmp [L4922] CALL, EXPR ldv_zalloc(1UL) [L4346] void *p ; [L4347] void *tmp ; [L4348] int tmp___0 ; [L4350] tmp___0 = __VERIFIER_nondet_int() [L4351] COND TRUE tmp___0 != 0 [L4352] return ((void *)0); [L4922] RET, EXPR ldv_zalloc(1UL) [L4922] tmp___0 = ldv_zalloc(1UL) [L4923] ldvarg3 = (unsigned char *)tmp___0 [L4924] tmp___1 = __VERIFIER_nondet_int() [L4925] ldvarg2 = tmp___1 [L4926] CALL, EXPR ldv_zalloc(24UL) [L4346] void *p ; [L4347] void *tmp ; [L4348] int tmp___0 ; [L4350] tmp___0 = __VERIFIER_nondet_int() [L4351] COND TRUE tmp___0 != 0 [L4352] return ((void *)0); [L4926] RET, EXPR ldv_zalloc(24UL) [L4926] tmp___2 = ldv_zalloc(24UL) [L4927] ldvarg5 = (struct usb_device_id *)tmp___2 [L4928] CALL ldv_initialize() [L5301] CALL, EXPR ldv_malloc(sizeof(struct tty_struct___0)) [L4329] void *p ; [L4330] void *tmp ; [L4331] int tmp___0 ; [L4333] tmp___0 = __VERIFIER_nondet_int() [L4334] COND FALSE !(tmp___0 != 0) [L4337] tmp = malloc(size) [L4338] p = tmp [L4339] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) [L4325] COND FALSE !(!cond) [L4339] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) [L4340] return (p); [L5301] RET, EXPR ldv_malloc(sizeof(struct tty_struct___0)) [L5301] ldv_latest_tty = ldv_malloc(sizeof(struct tty_struct___0)) [L5302] COND TRUE (unsigned long )ldv_latest_tty != (unsigned long )((void *)0) [L4928] RET ldv_initialize() [L4929] FCALL memset((void *)(& ldvarg0), 0, 4UL) [L4930] FCALL memset((void *)(& ldvarg4), 0, 4UL) [L4931] ldv_state_variable_1 = 0 [L4932] ref_cnt = 0 [L4933] ldv_state_variable_0 = 1 [L4934] ldv_state_variable_2 = 0 [L4936] tmp___3 = __VERIFIER_nondet_int() [L4938] case 0: [L5144] case 1: [L5145] COND TRUE ldv_state_variable_0 != 0 [L5146] tmp___5 = __VERIFIER_nondet_int() [L5148] case 0: [L5156] case 1: [L5157] COND TRUE ldv_state_variable_0 == 1 [L5158] CALL, EXPR qcinit() [L4842] int retval ; [L4844] CALL, EXPR usb_serial_register(& qcdevice) [L5392] return __VERIFIER_nondet_int(); [L4844] RET, EXPR usb_serial_register(& qcdevice) [L4844] retval = usb_serial_register(& qcdevice) [L4845] COND TRUE retval != 0 [L4846] return (retval); [L5158] RET, EXPR qcinit() [L5158] ldv_retval_5 = qcinit() [L5159] COND TRUE ldv_retval_5 != 0 [L5160] ldv_state_variable_0 = 3 [L5252] FCALL ldv_check_final_state() [L5253] CALL ldv_error() [L4381] CALL reach_error() [L12] COND FALSE !(0) [L12] __assert_fail ("0", "linux-stable-4ed3cba-1-100_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.c", 3, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 77 procedures, 598 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 67.4s, OverallIterations: 5, TraceHistogramMax: 8, AutomataDifference: 37.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2236 SDtfs, 2137 SDslu, 9843 SDs, 0 SdLazy, 4957 SolverSat, 1893 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 168 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 23.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=574occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 184 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 27.8s InterpolantComputationTime, 404 NumberOfCodeBlocks, 404 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 314 ConstructedInterpolants, 0 QuantifiedInterpolants, 158728 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 80/110 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...