/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --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=BIGGEST --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 -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 0.1.25-adbd35c [2020-10-13 04:13:45,516 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 04:13:45,519 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 04:13:45,542 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 04:13:45,542 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 04:13:45,543 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 04:13:45,545 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 04:13:45,546 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 04:13:45,548 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 04:13:45,549 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 04:13:45,550 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 04:13:45,551 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 04:13:45,551 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 04:13:45,552 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 04:13:45,553 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 04:13:45,554 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 04:13:45,555 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 04:13:45,556 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 04:13:45,557 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 04:13:45,559 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 04:13:45,561 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 04:13:45,562 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 04:13:45,563 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 04:13:45,564 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 04:13:45,566 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 04:13:45,566 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 04:13:45,567 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 04:13:45,568 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 04:13:45,568 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 04:13:45,569 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 04:13:45,569 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 04:13:45,570 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 04:13:45,570 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 04:13:45,571 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 04:13:45,572 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 04:13:45,572 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 04:13:45,573 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 04:13:45,573 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 04:13:45,573 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 04:13:45,574 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 04:13:45,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 04:13:45,576 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 [2020-10-13 04:13:45,598 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 04:13:45,598 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 04:13:45,601 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 04:13:45,601 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 04:13:45,602 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 04:13:45,602 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 04:13:45,602 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 04:13:45,602 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 04:13:45,602 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 04:13:45,603 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 04:13:45,603 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 04:13:45,603 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 04:13:45,603 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 04:13:45,603 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 04:13:45,604 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 04:13:45,604 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 04:13:45,604 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 04:13:45,604 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 04:13:45,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 04:13:45,605 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 04:13:45,605 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 04:13:45,605 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 04:13:45,605 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 04:13:45,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 04:13:45,606 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 04:13:45,606 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 04:13:45,608 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-13 04:13:45,608 INFO L138 SettingsManager]: * To the following directory=dump/ 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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 04:13:45,909 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 04:13:45,926 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 04:13:45,930 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 04:13:45,931 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 04:13:45,932 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 04:13:45,932 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-4ed3cba-1-100_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2020-10-13 04:13:46,009 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5746cf722/d5e5b807be694f2eb63f4982022acaf5/FLAGbb337860b [2020-10-13 04:13:46,744 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 04:13:46,744 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-4ed3cba-1-100_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2020-10-13 04:13:46,778 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5746cf722/d5e5b807be694f2eb63f4982022acaf5/FLAGbb337860b [2020-10-13 04:13:46,831 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5746cf722/d5e5b807be694f2eb63f4982022acaf5 [2020-10-13 04:13:46,841 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 04:13:46,843 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 04:13:46,844 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 04:13:46,845 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 04:13:46,848 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 04:13:46,849 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:13:46" (1/1) ... [2020-10-13 04:13:46,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d600056 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:13:46, skipping insertion in model container [2020-10-13 04:13:46,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:13:46" (1/1) ... [2020-10-13 04:13:46,861 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 04:13:46,973 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 04:13:47,653 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name writepages at C: (*writepages)(struct address_space___0 * , struct writeback_control * ) [3493] [2020-10-13 04:13:47,654 WARN L1191 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 ) [3495-3496] [2020-10-13 04:13:47,654 WARN L1191 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 ) [3497-3499] [2020-10-13 04:13:47,655 WARN L1191 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 ) [3500-3501] [2020-10-13 04:13:47,655 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name bmap at C: (*bmap)(struct address_space___0 * , sector_t ) [3502] [2020-10-13 04:13:47,659 WARN L1191 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 * ) [3508-3509] [2020-10-13 04:13:47,661 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name migratepage at C: (*migratepage)(struct address_space___0 * , struct page * , struct page * ) [3510] [2020-10-13 04:13:47,661 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name error_remove_page at C: (*error_remove_page)(struct address_space___0 * , struct page * ) [3513] [2020-10-13 04:13:47,673 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name lookup at C: *(*lookup)(struct tty_driver___0 *driver , struct inode___0 *inode , int idx ) [3827-3828] [2020-10-13 04:13:47,674 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name install at C: (*install)(struct tty_driver___0 *driver , struct tty_struct___0 *tty ) [3829] [2020-10-13 04:13:47,674 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name remove at C: (*remove)(struct tty_driver___0 *driver , struct tty_struct___0 *tty ) [3830] [2020-10-13 04:13:47,676 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name poll_init at C: (*poll_init)(struct tty_driver___0 *driver , int line , char *options ) [3861] [2020-10-13 04:13:47,677 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name poll_get_char at C: (*poll_get_char)(struct tty_driver___0 *driver , int line ) [3862] [2020-10-13 04:13:47,678 WARN L1191 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 ) [3863] [2020-10-13 04:13:47,679 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name carrier_raised at C: (*carrier_raised)(struct tty_port___0 *port ) [3923] [2020-10-13 04:13:47,679 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name dtr_rts at C: (*dtr_rts)(struct tty_port___0 *port , int raise ) [3924] [2020-10-13 04:13:47,680 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name shutdown at C: (*shutdown)(struct tty_port___0 *port ) [3925] [2020-10-13 04:13:47,680 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name drop at C: (*drop)(struct tty_port___0 *port ) [3926] [2020-10-13 04:13:47,680 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name activate at C: (*activate)(struct tty_port___0 *port , struct tty_struct___0 *tty ) [3927] [2020-10-13 04:13:47,681 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name destruct at C: (*destruct)(struct tty_port___0 *port ) [3928] [2020-10-13 04:13:48,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 04:13:48,595 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 04:13:48,695 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name writepages at C: (*writepages)(struct address_space___0 * , struct writeback_control * ) [3493] [2020-10-13 04:13:48,696 WARN L1191 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 ) [3495-3496] [2020-10-13 04:13:48,696 WARN L1191 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 ) [3497-3499] [2020-10-13 04:13:48,697 WARN L1191 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 ) [3500-3501] [2020-10-13 04:13:48,697 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name bmap at C: (*bmap)(struct address_space___0 * , sector_t ) [3502] [2020-10-13 04:13:48,698 WARN L1191 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 * ) [3508-3509] [2020-10-13 04:13:48,698 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name migratepage at C: (*migratepage)(struct address_space___0 * , struct page * , struct page * ) [3510] [2020-10-13 04:13:48,699 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name error_remove_page at C: (*error_remove_page)(struct address_space___0 * , struct page * ) [3513] [2020-10-13 04:13:48,705 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name lookup at C: *(*lookup)(struct tty_driver___0 *driver , struct inode___0 *inode , int idx ) [3827-3828] [2020-10-13 04:13:48,705 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name install at C: (*install)(struct tty_driver___0 *driver , struct tty_struct___0 *tty ) [3829] [2020-10-13 04:13:48,707 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name remove at C: (*remove)(struct tty_driver___0 *driver , struct tty_struct___0 *tty ) [3830] [2020-10-13 04:13:48,708 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name poll_init at C: (*poll_init)(struct tty_driver___0 *driver , int line , char *options ) [3861] [2020-10-13 04:13:48,709 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name poll_get_char at C: (*poll_get_char)(struct tty_driver___0 *driver , int line ) [3862] [2020-10-13 04:13:48,710 WARN L1191 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 ) [3863] [2020-10-13 04:13:48,711 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name carrier_raised at C: (*carrier_raised)(struct tty_port___0 *port ) [3923] [2020-10-13 04:13:48,711 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name dtr_rts at C: (*dtr_rts)(struct tty_port___0 *port , int raise ) [3924] [2020-10-13 04:13:48,712 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name shutdown at C: (*shutdown)(struct tty_port___0 *port ) [3925] [2020-10-13 04:13:48,712 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name drop at C: (*drop)(struct tty_port___0 *port ) [3926] [2020-10-13 04:13:48,713 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name activate at C: (*activate)(struct tty_port___0 *port , struct tty_struct___0 *tty ) [3927] [2020-10-13 04:13:48,713 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name destruct at C: (*destruct)(struct tty_port___0 *port ) [3928] [2020-10-13 04:13:48,824 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 04:13:48,976 INFO L208 MainTranslator]: Completed translation [2020-10-13 04:13:48,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:13:48 WrapperNode [2020-10-13 04:13:48,977 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 04:13:48,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 04:13:48,979 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 04:13:48,979 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 04:13:49,001 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:13:48" (1/1) ... [2020-10-13 04:13:49,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:13:48" (1/1) ... [2020-10-13 04:13:49,096 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:13:48" (1/1) ... [2020-10-13 04:13:49,097 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:13:48" (1/1) ... [2020-10-13 04:13:49,254 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:13:48" (1/1) ... [2020-10-13 04:13:49,287 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:13:48" (1/1) ... [2020-10-13 04:13:49,315 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:13:48" (1/1) ... [2020-10-13 04:13:49,341 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 04:13:49,341 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 04:13:49,341 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 04:13:49,342 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 04:13:49,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:13:48" (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 [2020-10-13 04:13:49,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 04:13:49,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 04:13:49,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2020-10-13 04:13:49,437 INFO L138 BoogieDeclarations]: Found implementation of procedure get_order [2020-10-13 04:13:49,437 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-13 04:13:49,437 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2020-10-13 04:13:49,438 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2020-10-13 04:13:49,438 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemleak_alloc [2020-10-13 04:13:49,438 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2020-10-13 04:13:49,438 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_index [2020-10-13 04:13:49,439 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_slab [2020-10-13 04:13:49,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-13 04:13:49,439 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_large [2020-10-13 04:13:49,439 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-13 04:13:49,439 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-13 04:13:49,440 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 04:13:49,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-13 04:13:49,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-13 04:13:49,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-13 04:13:49,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-13 04:13:49,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-13 04:13:49,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-13 04:13:49,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-13 04:13:49,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-13 04:13:49,442 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2020-10-13 04:13:49,442 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2020-10-13 04:13:49,442 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2020-10-13 04:13:49,442 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_in [2020-10-13 04:13:49,442 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_out [2020-10-13 04:13:49,443 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2020-10-13 04:13:49,443 INFO L138 BoogieDeclarations]: Found implementation of procedure qcprobe [2020-10-13 04:13:49,443 INFO L138 BoogieDeclarations]: Found implementation of procedure qcinit [2020-10-13 04:13:49,443 INFO L138 BoogieDeclarations]: Found implementation of procedure qcexit [2020-10-13 04:13:49,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_usb_serial_driver_1 [2020-10-13 04:13:49,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_2 [2020-10-13 04:13:49,444 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 04:13:49,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_insert_flip_string_fixed_flag_4 [2020-10-13 04:13:49,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_5 [2020-10-13 04:13:49,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_6 [2020-10-13 04:13:49,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2020-10-13 04:13:49,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-13 04:13:49,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2020-10-13 04:13:49,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_got_tty [2020-10-13 04:13:49,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_tty [2020-10-13 04:13:49,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_free_pages [2020-10-13 04:13:49,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-13 04:13:49,445 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2020-10-13 04:13:49,446 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-13 04:13:49,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-13 04:13:49,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_reset_resume_2 [2020-10-13 04:13:49,446 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2020-10-13 04:13:49,446 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-13 04:13:49,446 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string_fixed_flag [2020-10-13 04:13:49,446 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-10-13 04:13:49,447 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_enable_autosuspend [2020-10-13 04:13:49,447 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-10-13 04:13:49,447 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2020-10-13 04:13:49,447 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2020-10-13 04:13:49,447 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2020-10-13 04:13:49,448 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_register [2020-10-13 04:13:49,448 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_resume [2020-10-13 04:13:49,448 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_suspend [2020-10-13 04:13:49,448 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2020-10-13 04:13:49,449 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_chars_in_buffer [2020-10-13 04:13:49,449 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_close [2020-10-13 04:13:49,449 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_disconnect [2020-10-13 04:13:49,449 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_open [2020-10-13 04:13:49,450 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_release [2020-10-13 04:13:49,450 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_resume [2020-10-13 04:13:49,450 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_startup [2020-10-13 04:13:49,450 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_suspend [2020-10-13 04:13:49,450 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_write [2020-10-13 04:13:49,451 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_write_room [2020-10-13 04:13:49,451 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-13 04:13:49,451 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-13 04:13:49,451 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-13 04:13:49,452 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 04:13:49,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-13 04:13:49,452 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-13 04:13:49,452 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-13 04:13:49,452 INFO L130 BoogieDeclarations]: Found specification of procedure get_order [2020-10-13 04:13:49,452 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2020-10-13 04:13:49,452 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-13 04:13:49,453 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-13 04:13:49,453 INFO L130 BoogieDeclarations]: Found specification of procedure __get_free_pages [2020-10-13 04:13:49,453 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2020-10-13 04:13:49,453 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2020-10-13 04:13:49,453 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2020-10-13 04:13:49,453 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string_fixed_flag [2020-10-13 04:13:49,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_insert_flip_string_fixed_flag_4 [2020-10-13 04:13:49,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_tty [2020-10-13 04:13:49,454 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-13 04:13:49,454 INFO L130 BoogieDeclarations]: Found specification of procedure kmemleak_alloc [2020-10-13 04:13:49,454 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2020-10-13 04:13:49,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 04:13:49,454 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2020-10-13 04:13:49,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 04:13:49,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 04:13:49,455 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_index [2020-10-13 04:13:49,455 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_slab [2020-10-13 04:13:49,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-13 04:13:49,455 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-13 04:13:49,455 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2020-10-13 04:13:49,456 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_large [2020-10-13 04:13:49,456 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-13 04:13:49,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-13 04:13:49,456 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-13 04:13:49,456 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 04:13:49,456 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-13 04:13:49,457 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 04:13:49,457 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-13 04:13:49,457 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 04:13:49,457 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 04:13:49,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 04:13:49,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-13 04:13:49,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-13 04:13:49,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-13 04:13:49,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-13 04:13:49,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-13 04:13:49,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-13 04:13:49,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_usb_serial_driver_1 [2020-10-13 04:13:49,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_2 [2020-10-13 04:13:49,460 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2020-10-13 04:13:49,460 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2020-10-13 04:13:49,460 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2020-10-13 04:13:49,460 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_in [2020-10-13 04:13:49,460 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_out [2020-10-13 04:13:49,460 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-13 04:13:49,461 INFO L130 BoogieDeclarations]: Found specification of procedure usb_enable_autosuspend [2020-10-13 04:13:49,461 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-10-13 04:13:49,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_5 [2020-10-13 04:13:49,461 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2020-10-13 04:13:49,462 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-10-13 04:13:49,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_6 [2020-10-13 04:13:49,462 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2020-10-13 04:13:49,462 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_register [2020-10-13 04:13:49,462 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2020-10-13 04:13:49,463 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2020-10-13 04:13:49,463 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2020-10-13 04:13:49,463 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_suspend [2020-10-13 04:13:49,463 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_resume [2020-10-13 04:13:49,463 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_open [2020-10-13 04:13:49,463 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_close [2020-10-13 04:13:49,464 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_startup [2020-10-13 04:13:49,464 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_disconnect [2020-10-13 04:13:49,464 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_release [2020-10-13 04:13:49,464 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_write_room [2020-10-13 04:13:49,464 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_write [2020-10-13 04:13:49,465 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_chars_in_buffer [2020-10-13 04:13:49,465 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_suspend [2020-10-13 04:13:49,465 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_resume [2020-10-13 04:13:49,465 INFO L130 BoogieDeclarations]: Found specification of procedure qcprobe [2020-10-13 04:13:49,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 04:13:49,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 04:13:49,466 INFO L130 BoogieDeclarations]: Found specification of procedure qcinit [2020-10-13 04:13:49,466 INFO L130 BoogieDeclarations]: Found specification of procedure qcexit [2020-10-13 04:13:49,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_reset_resume_2 [2020-10-13 04:13:49,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-13 04:13:49,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-13 04:13:49,467 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 04:13:49,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-13 04:13:49,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2020-10-13 04:13:49,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2020-10-13 04:13:49,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_got_tty [2020-10-13 04:13:49,468 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 04:13:49,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 04:13:49,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 04:13:49,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-13 04:13:49,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 04:13:49,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 04:13:50,589 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-13 04:13:51,822 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2020-10-13 04:13:51,924 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 04:13:51,924 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-13 04:13:51,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:13:51 BoogieIcfgContainer [2020-10-13 04:13:51,933 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 04:13:51,938 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 04:13:51,938 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 04:13:51,941 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 04:13:51,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 04:13:46" (1/3) ... [2020-10-13 04:13:51,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1216f8cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 04:13:51, skipping insertion in model container [2020-10-13 04:13:51,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:13:48" (2/3) ... [2020-10-13 04:13:51,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1216f8cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 04:13:51, skipping insertion in model container [2020-10-13 04:13:51,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:13:51" (3/3) ... [2020-10-13 04:13:51,945 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-4ed3cba-1-100_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2020-10-13 04:13:51,958 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 04:13:51,969 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 04:13:51,988 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 04:13:52,020 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 04:13:52,020 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 04:13:52,020 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 04:13:52,021 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 04:13:52,021 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 04:13:52,021 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 04:13:52,021 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 04:13:52,021 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 04:13:52,146 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states. [2020-10-13 04:13:52,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-13 04:13:52,168 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 04:13:52,170 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] [2020-10-13 04:13:52,171 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 04:13:52,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 04:13:52,177 INFO L82 PathProgramCache]: Analyzing trace with hash -158870587, now seen corresponding path program 1 times [2020-10-13 04:13:52,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 04:13:52,187 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [925612729] [2020-10-13 04:13:52,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 04:13:52,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:13:52,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:13:53,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:13:53,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:13:58,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:13:58,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-13 04:13:58,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 04:13:58,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5357 [2020-10-13 04:13:58,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:13:58,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 04:13:58,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-13 04:13:58,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 04:13:58,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-13 04:13:59,049 WARN L193 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 304 [2020-10-13 04:13:59,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 04:13:59,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:13:59,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:13:59,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:13:59,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:13:59,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:13:59,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-10-13 04:13:59,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:13:59,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:13:59,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:13:59,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:13:59,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:13:59,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 04:13:59,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:13:59,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:13:59,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:13:59,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:13:59,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:13:59,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 04:13:59,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:13:59,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:13:59,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:13:59,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:13:59,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:13:59,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 04:13:59,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:13:59,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:13:59,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:13:59,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:13:59,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:13:59,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 04:13:59,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:13:59,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:13:59,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:13:59,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:13:59,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:13:59,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 04:13:59,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:13:59,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:13:59,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:13:59,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:13:59,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:13:59,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 04:13:59,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:13:59,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:13:59,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:13:59,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:13:59,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:13:59,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 04:13:59,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:13:59,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:13:59,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:13:59,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 04:13:59,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:13:59,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-13 04:13:59,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:13:59,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 04:13:59,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 04:13:59,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 04:13:59,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:13:59,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 04:13:59,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:13:59,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:13:59,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:13:59,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:13:59,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:13:59,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 04:13:59,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:13:59,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 04:13:59,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:13:59,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 04:13:59,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:13:59,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-13 04:13:59,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:13:59,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:13:59,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:13:59,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:13:59,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:13:59,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 04:13:59,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 04:13:59,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:13:59,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 04:13:59,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 04:13:59,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 04:13:59,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:13:59,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-13 04:13:59,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:13:59,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:13:59,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:13:59,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:13:59,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:13:59,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 04:13:59,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 04:13:59,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:13:59,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 04:13:59,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 04:13:59,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 04:13:59,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:13:59,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-13 04:13:59,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:13:59,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:13:59,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:13:59,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 04:13:59,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:13:59,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 04:13:59,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:13:59,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:13:59,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 04:13:59,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:13:59,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:13:59,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:13:59,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:13:59,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:13:59,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:13:59,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:13:59,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:13:59,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 04:13:59,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:13:59,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:13:59,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:13:59,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:13:59,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:13:59,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 04:13:59,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:13:59,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:13:59,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:13:59,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 04:13:59,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:13:59,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 04:13:59,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:13:59,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:13:59,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-13 04:13:59,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:13:59,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:13:59,961 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-13 04:13:59,962 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [925612729] [2020-10-13 04:13:59,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 04:13:59,965 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 04:13:59,966 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62402643] [2020-10-13 04:13:59,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 04:13:59,972 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 04:13:59,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 04:13:59,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-13 04:13:59,989 INFO L87 Difference]: Start difference. First operand 570 states. Second operand 13 states. [2020-10-13 04:14:00,670 WARN L193 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-13 04:14:01,884 WARN L193 SmtUtils]: Spent 664.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-13 04:14:02,528 WARN L193 SmtUtils]: Spent 518.00 ms on a formula simplification that was a NOOP. DAG size: 307 [2020-10-13 04:14:03,359 WARN L193 SmtUtils]: Spent 635.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-13 04:14:03,973 WARN L193 SmtUtils]: Spent 529.00 ms on a formula simplification that was a NOOP. DAG size: 320 [2020-10-13 04:14:04,682 WARN L193 SmtUtils]: Spent 493.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-13 04:14:05,222 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification that was a NOOP. DAG size: 318 [2020-10-13 04:14:07,059 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification that was a NOOP. DAG size: 320 [2020-10-13 04:14:08,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 04:14:08,675 INFO L93 Difference]: Finished difference Result 1069 states and 1456 transitions. [2020-10-13 04:14:08,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 04:14:08,678 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 70 [2020-10-13 04:14:08,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 04:14:08,703 INFO L225 Difference]: With dead ends: 1069 [2020-10-13 04:14:08,703 INFO L226 Difference]: Without dead ends: 507 [2020-10-13 04:14:08,711 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2020-10-13 04:14:08,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2020-10-13 04:14:08,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 461. [2020-10-13 04:14:08,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 461 states. [2020-10-13 04:14:08,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 604 transitions. [2020-10-13 04:14:08,867 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 604 transitions. Word has length 70 [2020-10-13 04:14:08,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 04:14:08,867 INFO L479 AbstractCegarLoop]: Abstraction has 461 states and 604 transitions. [2020-10-13 04:14:08,867 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 04:14:08,868 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 604 transitions. [2020-10-13 04:14:08,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-13 04:14:08,873 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 04:14:08,874 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] [2020-10-13 04:14:08,874 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 04:14:08,874 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 04:14:08,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 04:14:08,875 INFO L82 PathProgramCache]: Analyzing trace with hash 261793003, now seen corresponding path program 1 times [2020-10-13 04:14:08,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 04:14:08,875 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1266252581] [2020-10-13 04:14:08,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 04:14:09,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:14:09,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:09,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:14,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:14:14,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-13 04:14:14,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 04:14:14,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5112 [2020-10-13 04:14:14,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:14:14,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 04:14:14,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-13 04:14:14,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 04:14:14,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:14:14,721 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 304 [2020-10-13 04:14:14,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 04:14:14,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:14:14,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:14,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:14:14,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:14:14,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:14:14,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-10-13 04:14:14,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:14:14,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:14:14,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:14:14,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:14:14,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:14:15,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 04:14:15,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:14:15,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:15,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:14:15,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:14:15,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:14:15,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 04:14:15,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:14:15,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:14:15,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:14:15,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:14:15,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:14:15,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 04:14:15,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:14:15,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:15,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:14:15,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:14:15,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:14:15,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 04:14:15,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:14:15,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:14:15,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:14:15,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:14:15,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:14:15,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 04:14:15,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:14:15,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:15,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:14:15,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:14:15,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:14:15,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 04:14:15,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:14:15,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:14:15,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:14:15,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:14:15,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:14:15,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 04:14:15,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:14:15,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:15,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:14:15,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-13 04:14:15,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:14:15,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 04:14:15,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:14:15,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:14:15,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:14:15,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:14:15,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:14:15,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 04:14:15,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:14:15,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:15,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:14:15,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 04:14:15,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:14:15,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 04:14:15,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:14:15,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:14:15,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:14:15,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:14:15,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:14:15,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 04:14:15,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:14:15,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:15,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:14:15,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:14:15,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:14:15,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 04:14:15,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:14:15,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:14:15,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:14:15,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:14:15,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:14:15,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-13 04:14:15,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:14:15,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:15,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:14:15,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 04:14:15,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:14:15,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-13 04:14:15,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:14:15,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 04:14:15,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 04:14:15,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 04:14:15,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:14:15,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 04:14:15,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:14:15,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:15,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:15,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:14:15,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 04:14:15,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 04:14:15,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 04:14:15,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:14:15,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 04:14:15,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 04:14:15,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 04:14:15,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 04:14:15,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-13 04:14:15,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:14:15,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:15,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:14:15,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 04:14:15,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:14:15,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 04:14:15,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:14:15,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:14:15,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 04:14:15,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:14:15,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:14:15,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:14:15,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:14:15,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:15,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:14:15,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:14:15,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:14:15,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 04:14:15,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:14:15,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:14:15,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:14:15,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:14:15,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:14:15,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 04:14:15,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:14:15,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:15,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:14:15,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 04:14:15,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:14:15,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 04:14:15,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:14:15,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:14:15,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-13 04:14:15,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:14:15,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:14:15,532 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-13 04:14:15,532 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1266252581] [2020-10-13 04:14:15,532 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 04:14:15,533 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-13 04:14:15,533 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968345192] [2020-10-13 04:14:15,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 04:14:15,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 04:14:15,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 04:14:15,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-13 04:14:15,535 INFO L87 Difference]: Start difference. First operand 461 states and 604 transitions. Second operand 11 states. [2020-10-13 04:14:16,027 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-13 04:14:17,285 WARN L193 SmtUtils]: Spent 507.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-13 04:14:17,725 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 307 [2020-10-13 04:14:18,196 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 309 [2020-10-13 04:14:20,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 04:14:20,739 INFO L93 Difference]: Finished difference Result 931 states and 1232 transitions. [2020-10-13 04:14:20,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 04:14:20,739 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 78 [2020-10-13 04:14:20,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 04:14:20,750 INFO L225 Difference]: With dead ends: 931 [2020-10-13 04:14:20,750 INFO L226 Difference]: Without dead ends: 508 [2020-10-13 04:14:20,752 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2020-10-13 04:14:20,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2020-10-13 04:14:20,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 462. [2020-10-13 04:14:20,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 462 states. [2020-10-13 04:14:20,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 605 transitions. [2020-10-13 04:14:20,826 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 605 transitions. Word has length 78 [2020-10-13 04:14:20,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 04:14:20,826 INFO L479 AbstractCegarLoop]: Abstraction has 462 states and 605 transitions. [2020-10-13 04:14:20,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 04:14:20,827 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 605 transitions. [2020-10-13 04:14:20,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-13 04:14:20,830 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 04:14:20,830 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] [2020-10-13 04:14:20,830 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 04:14:20,830 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 04:14:20,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 04:14:20,831 INFO L82 PathProgramCache]: Analyzing trace with hash 1817946209, now seen corresponding path program 2 times [2020-10-13 04:14:20,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 04:14:20,831 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1397739511] [2020-10-13 04:14:20,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 04:14:20,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:14:21,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:21,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:25,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:14:25,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 04:14:25,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 04:14:25,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-13 04:14:25,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:14:25,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 04:14:25,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-13 04:14:25,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 04:14:25,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:14:26,461 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 304 [2020-10-13 04:14:26,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 04:14:26,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:14:26,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:26,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:14:26,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:14:26,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:14:26,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-13 04:14:26,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:14:26,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:14:26,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:14:26,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:14:26,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:14:26,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 04:14:26,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:14:26,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:26,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:14:26,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:14:26,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:14:26,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 04:14:26,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:14:26,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:14:26,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:14:26,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:14:26,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:14:26,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 04:14:26,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:14:26,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:26,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:14:26,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:14:26,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:14:26,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 04:14:26,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:14:26,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:14:26,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:14:26,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:14:26,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:14:26,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 04:14:26,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:14:26,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:26,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:14:26,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:14:26,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:14:26,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 04:14:26,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:14:26,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:14:26,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:14:26,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:14:26,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:14:26,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 04:14:26,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:14:26,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:26,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:14:26,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-13 04:14:26,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:14:26,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 04:14:26,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:14:26,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:14:26,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:14:26,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:14:26,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:14:26,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 04:14:26,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:14:26,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:26,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:14:26,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 04:14:26,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:14:26,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 04:14:26,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:14:26,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:14:26,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:14:26,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:14:26,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:14:26,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 04:14:26,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:14:26,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:26,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:14:26,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:14:26,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:14:26,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 04:14:26,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:14:26,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:14:26,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:14:26,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:14:26,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:14:26,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-13 04:14:26,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:14:26,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:26,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:14:26,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 04:14:26,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:14:26,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-13 04:14:26,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:14:26,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 04:14:26,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 04:14:26,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 04:14:26,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:14:27,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-13 04:14:27,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:14:27,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:27,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:27,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:14:27,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 04:14:27,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 04:14:27,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-13 04:14:27,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:14:27,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 04:14:27,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 04:14:27,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 04:14:27,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:14:27,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 04:14:27,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:14:27,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:27,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:14:27,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 04:14:27,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:14:27,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 04:14:27,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:14:27,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:14:27,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 04:14:27,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:14:27,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:14:27,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:14:27,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:14:27,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:27,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:14:27,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:14:27,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:14:27,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 04:14:27,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:14:27,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:14:27,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:14:27,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:14:27,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:14:27,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-13 04:14:27,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:14:27,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:27,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:14:27,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 04:14:27,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:14:27,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 04:14:27,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:14:27,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:14:27,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-13 04:14:27,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:14:27,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:14:27,166 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-13 04:14:27,166 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1397739511] [2020-10-13 04:14:27,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 04:14:27,167 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 04:14:27,167 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277503898] [2020-10-13 04:14:27,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 04:14:27,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 04:14:27,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 04:14:27,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-13 04:14:27,168 INFO L87 Difference]: Start difference. First operand 462 states and 605 transitions. Second operand 12 states. [2020-10-13 04:14:27,649 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-13 04:14:28,733 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-13 04:14:29,223 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 307 [2020-10-13 04:14:29,718 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification that was a NOOP. DAG size: 307 [2020-10-13 04:14:30,215 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 309 [2020-10-13 04:14:32,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 04:14:32,598 INFO L93 Difference]: Finished difference Result 933 states and 1234 transitions. [2020-10-13 04:14:32,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 04:14:32,598 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 80 [2020-10-13 04:14:32,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 04:14:32,604 INFO L225 Difference]: With dead ends: 933 [2020-10-13 04:14:32,604 INFO L226 Difference]: Without dead ends: 509 [2020-10-13 04:14:32,610 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2020-10-13 04:14:32,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2020-10-13 04:14:32,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 463. [2020-10-13 04:14:32,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2020-10-13 04:14:32,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 606 transitions. [2020-10-13 04:14:32,680 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 606 transitions. Word has length 80 [2020-10-13 04:14:32,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 04:14:32,681 INFO L479 AbstractCegarLoop]: Abstraction has 463 states and 606 transitions. [2020-10-13 04:14:32,681 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 04:14:32,681 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 606 transitions. [2020-10-13 04:14:32,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-13 04:14:32,683 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 04:14:32,684 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] [2020-10-13 04:14:32,684 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 04:14:32,684 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 04:14:32,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 04:14:32,685 INFO L82 PathProgramCache]: Analyzing trace with hash -622004693, now seen corresponding path program 3 times [2020-10-13 04:14:32,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 04:14:32,685 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [887744833] [2020-10-13 04:14:32,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 04:14:32,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:14:32,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:33,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:37,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:14:37,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-13 04:14:37,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 04:14:37,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5112 [2020-10-13 04:14:37,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:14:37,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 04:14:37,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-13 04:14:37,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 04:14:37,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:14:38,397 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 304 [2020-10-13 04:14:38,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 04:14:38,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:14:38,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:38,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:14:38,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:14:38,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:14:38,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-13 04:14:38,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:14:38,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:14:38,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:14:38,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:14:38,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:14:38,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 04:14:38,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:14:38,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:38,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:14:38,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:14:38,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:14:38,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 04:14:38,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:14:38,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:14:38,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:14:38,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:14:38,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:14:38,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 04:14:38,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:14:38,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:38,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:14:38,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:14:38,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:14:38,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 04:14:38,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:14:38,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:14:38,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:14:38,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:14:38,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:14:38,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 04:14:38,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:14:38,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:38,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:14:38,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:14:38,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:14:38,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 04:14:38,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:14:38,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:14:38,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:14:38,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:14:38,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:14:38,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 04:14:38,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:14:38,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:38,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:14:38,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-13 04:14:38,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:14:38,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 04:14:38,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:14:38,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:14:38,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:14:38,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:14:38,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:14:38,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 04:14:38,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:14:38,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:38,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:14:38,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 04:14:38,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:14:38,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 04:14:38,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:14:38,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:14:38,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:14:38,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:14:38,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:14:38,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 04:14:38,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:14:38,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:38,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:14:38,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:14:38,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:14:38,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 04:14:38,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:14:38,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:14:38,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:14:38,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:14:38,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:14:38,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-13 04:14:38,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:14:38,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:38,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:14:38,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 04:14:38,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:14:38,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-13 04:14:38,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:14:38,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 04:14:38,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 04:14:38,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 04:14:38,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:14:38,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 04:14:38,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:14:38,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:38,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:39,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:14:39,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 04:14:39,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 04:14:39,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-13 04:14:39,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:14:39,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 04:14:39,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 04:14:39,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 04:14:39,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:14:39,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 04:14:39,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:14:39,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:39,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:14:39,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 04:14:39,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:14:39,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 04:14:39,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:14:39,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:14:39,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 04:14:39,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:14:39,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:14:39,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:14:39,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:14:39,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:39,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:14:39,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:14:39,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:14:39,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 04:14:39,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:14:39,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:14:39,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:14:39,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:14:39,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:14:39,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 04:14:39,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:14:39,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:14:39,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:14:39,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 04:14:39,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:14:39,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 04:14:39,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:14:39,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:14:39,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-13 04:14:39,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:14:39,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:14:39,235 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 7 proven. 18 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-13 04:14:39,235 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [887744833] [2020-10-13 04:14:39,235 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 04:14:39,236 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 04:14:39,238 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960038835] [2020-10-13 04:14:39,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 04:14:39,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 04:14:39,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 04:14:39,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2020-10-13 04:14:39,241 INFO L87 Difference]: Start difference. First operand 463 states and 606 transitions. Second operand 14 states. [2020-10-13 04:14:39,723 WARN L193 SmtUtils]: Spent 447.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-13 04:14:41,027 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-13 04:14:41,644 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification that was a NOOP. DAG size: 307 [2020-10-13 04:14:42,173 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification that was a NOOP. DAG size: 307 [2020-10-13 04:14:42,712 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification that was a NOOP. DAG size: 307 [2020-10-13 04:14:43,265 WARN L193 SmtUtils]: Spent 509.00 ms on a formula simplification that was a NOOP. DAG size: 309 [2020-10-13 04:14:46,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 04:14:46,142 INFO L93 Difference]: Finished difference Result 935 states and 1236 transitions. [2020-10-13 04:14:46,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 04:14:46,143 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 82 [2020-10-13 04:14:46,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 04:14:46,148 INFO L225 Difference]: With dead ends: 935 [2020-10-13 04:14:46,149 INFO L226 Difference]: Without dead ends: 510 [2020-10-13 04:14:46,151 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=116, Invalid=346, Unknown=0, NotChecked=0, Total=462 [2020-10-13 04:14:46,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2020-10-13 04:14:46,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 464. [2020-10-13 04:14:46,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 464 states. [2020-10-13 04:14:46,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 607 transitions. [2020-10-13 04:14:46,215 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 607 transitions. Word has length 82 [2020-10-13 04:14:46,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 04:14:46,216 INFO L479 AbstractCegarLoop]: Abstraction has 464 states and 607 transitions. [2020-10-13 04:14:46,216 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 04:14:46,216 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 607 transitions. [2020-10-13 04:14:46,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-13 04:14:46,218 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 04:14:46,219 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] [2020-10-13 04:14:46,219 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 04:14:46,219 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 04:14:46,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 04:14:46,219 INFO L82 PathProgramCache]: Analyzing trace with hash 1825088545, now seen corresponding path program 4 times [2020-10-13 04:14:46,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 04:14:46,220 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1849526371] [2020-10-13 04:14:46,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 04:14:46,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 04:14:46,459 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 04:14:46,459 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 04:14:46,464 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 04:14:46,480 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2020-10-13 04:14:46,481 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2020-10-13 04:14:46,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 04:14:46 BoogieIcfgContainer [2020-10-13 04:14:46,530 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 04:14:46,532 INFO L168 Benchmark]: Toolchain (without parser) took 59689.78 ms. Allocated memory was 140.5 MB in the beginning and 1.1 GB in the end (delta: 931.1 MB). Free memory was 96.0 MB in the beginning and 617.3 MB in the end (delta: -521.3 MB). Peak memory consumption was 409.8 MB. Max. memory is 7.1 GB. [2020-10-13 04:14:46,533 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 04:14:46,534 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2133.68 ms. Allocated memory was 140.5 MB in the beginning and 212.3 MB in the end (delta: 71.8 MB). Free memory was 95.7 MB in the beginning and 102.6 MB in the end (delta: -6.9 MB). Peak memory consumption was 70.2 MB. Max. memory is 7.1 GB. [2020-10-13 04:14:46,537 INFO L168 Benchmark]: Boogie Preprocessor took 362.41 ms. Allocated memory was 212.3 MB in the beginning and 240.1 MB in the end (delta: 27.8 MB). Free memory was 102.6 MB in the beginning and 189.1 MB in the end (delta: -86.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2020-10-13 04:14:46,538 INFO L168 Benchmark]: RCFGBuilder took 2592.13 ms. Allocated memory was 240.1 MB in the beginning and 256.4 MB in the end (delta: 16.3 MB). Free memory was 189.1 MB in the beginning and 90.0 MB in the end (delta: 99.2 MB). Peak memory consumption was 120.4 MB. Max. memory is 7.1 GB. [2020-10-13 04:14:46,539 INFO L168 Benchmark]: TraceAbstraction took 54592.87 ms. Allocated memory was 256.4 MB in the beginning and 1.1 GB in the end (delta: 815.3 MB). Free memory was 90.0 MB in the beginning and 617.3 MB in the end (delta: -527.3 MB). Peak memory consumption was 287.9 MB. Max. memory is 7.1 GB. [2020-10-13 04:14:46,546 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2133.68 ms. Allocated memory was 140.5 MB in the beginning and 212.3 MB in the end (delta: 71.8 MB). Free memory was 95.7 MB in the beginning and 102.6 MB in the end (delta: -6.9 MB). Peak memory consumption was 70.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 362.41 ms. Allocated memory was 212.3 MB in the beginning and 240.1 MB in the end (delta: 27.8 MB). Free memory was 102.6 MB in the beginning and 189.1 MB in the end (delta: -86.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2592.13 ms. Allocated memory was 240.1 MB in the beginning and 256.4 MB in the end (delta: 16.3 MB). Free memory was 189.1 MB in the beginning and 90.0 MB in the end (delta: 99.2 MB). Peak memory consumption was 120.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 54592.87 ms. Allocated memory was 256.4 MB in the beginning and 1.1 GB in the end (delta: 815.3 MB). Free memory was 90.0 MB in the beginning and 617.3 MB in the end (delta: -527.3 MB). Peak memory consumption was 287.9 MB. Max. memory is 7.1 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: 4370]: 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 4673. Possible FailurePath: [L4393] int LDV_IN_INTERRUPT = 1; [L4394] int ldv_state_variable_2 ; [L4395] int ref_cnt ; [L4396] struct usb_serial *qcdevice_group1 ; [L4397] int ldv_state_variable_1 ; [L4398] struct usb_interface *qcdriver_group1 ; [L4399] int usb_counter ; [L4400] struct tty_struct *qcdevice_group0 ; [L4401] struct usb_serial_port *qcdevice_group2 ; [L4402] int ldv_state_variable_0 ; [L4496] static int debug ; [L4497-L4670] 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}}; [L4671] struct usb_device_id const __mod_usb_device_table ; [L4672-L4686] 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}; [L4822-L4828] 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}; [L4856] int ldv_retval_9 ; [L4857] int ldv_retval_2 ; [L4858] int ldv_retval_5 ; [L4859] int ldv_retval_0 ; [L4860] int ldv_retval_4 ; [L4861] int ldv_retval_6 ; [L4863] int ldv_retval_1 ; [L4865] int ldv_retval_8 ; [L4866] int ldv_retval_3 ; [L4867] int ldv_retval_7 ; [L5286] struct tty_struct___0 *ldv_latest_tty ; [L4894] struct usb_device_id *ldvarg1 ; [L4895] void *tmp ; [L4896] unsigned char *ldvarg3 ; [L4897] void *tmp___0 ; [L4898] pm_message_t ldvarg0 ; [L4899] int ldvarg2 ; [L4900] int tmp___1 ; [L4901] pm_message_t ldvarg4 ; [L4902] struct usb_device_id *ldvarg5 ; [L4903] void *tmp___2 ; [L4904] int tmp___3 ; [L4905] int tmp___4 ; [L4906] int tmp___5 ; [L4907] int tmp___6 ; [L4909] CALL, EXPR ldv_zalloc(24UL) [L4335] void *p ; [L4336] void *tmp ; [L4337] int tmp___0 ; [L4339] tmp___0 = __VERIFIER_nondet_int() [L4340] COND TRUE tmp___0 != 0 [L4341] return ((void *)0); [L4909] RET, EXPR ldv_zalloc(24UL) [L4909] tmp = ldv_zalloc(24UL) [L4910] ldvarg1 = (struct usb_device_id *)tmp [L4911] CALL, EXPR ldv_zalloc(1UL) [L4335] void *p ; [L4336] void *tmp ; [L4337] int tmp___0 ; [L4339] tmp___0 = __VERIFIER_nondet_int() [L4340] COND TRUE tmp___0 != 0 [L4341] return ((void *)0); [L4911] RET, EXPR ldv_zalloc(1UL) [L4911] tmp___0 = ldv_zalloc(1UL) [L4912] ldvarg3 = (unsigned char *)tmp___0 [L4913] tmp___1 = __VERIFIER_nondet_int() [L4914] ldvarg2 = tmp___1 [L4915] CALL, EXPR ldv_zalloc(24UL) [L4335] void *p ; [L4336] void *tmp ; [L4337] int tmp___0 ; [L4339] tmp___0 = __VERIFIER_nondet_int() [L4340] COND TRUE tmp___0 != 0 [L4341] return ((void *)0); [L4915] RET, EXPR ldv_zalloc(24UL) [L4915] tmp___2 = ldv_zalloc(24UL) [L4916] ldvarg5 = (struct usb_device_id *)tmp___2 [L4917] CALL ldv_initialize() [L5290] CALL, EXPR ldv_malloc(sizeof(struct tty_struct___0)) [L4318] void *p ; [L4319] void *tmp ; [L4320] int tmp___0 ; [L4322] tmp___0 = __VERIFIER_nondet_int() [L4323] COND FALSE !(tmp___0 != 0) [L4326] tmp = malloc(size) [L4327] p = tmp [L4328] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) [L4314] COND FALSE !(!cond) [L4328] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) [L4329] return (p); [L5290] RET, EXPR ldv_malloc(sizeof(struct tty_struct___0)) [L5290] ldv_latest_tty = ldv_malloc(sizeof(struct tty_struct___0)) [L5291] COND TRUE (unsigned long )ldv_latest_tty != (unsigned long )((void *)0) [L4917] RET ldv_initialize() [L4918] FCALL memset((void *)(& ldvarg0), 0, 4UL) [L4919] FCALL memset((void *)(& ldvarg4), 0, 4UL) [L4920] ldv_state_variable_1 = 0 [L4921] ref_cnt = 0 [L4922] ldv_state_variable_0 = 1 [L4923] ldv_state_variable_2 = 0 [L4925] tmp___3 = __VERIFIER_nondet_int() [L4927] case 0: [L5133] case 1: [L5134] COND TRUE ldv_state_variable_0 != 0 [L5135] tmp___5 = __VERIFIER_nondet_int() [L5137] case 0: [L5145] case 1: [L5146] COND TRUE ldv_state_variable_0 == 1 [L5147] CALL, EXPR qcinit() [L4831] int retval ; [L4833] CALL, EXPR usb_serial_register(& qcdevice) [L5381] return __VERIFIER_nondet_int(); [L4833] RET, EXPR usb_serial_register(& qcdevice) [L4833] retval = usb_serial_register(& qcdevice) [L4834] COND TRUE retval != 0 [L4835] return (retval); [L5147] RET, EXPR qcinit() [L5147] ldv_retval_5 = qcinit() [L5148] COND TRUE ldv_retval_5 != 0 [L5149] ldv_state_variable_0 = 3 [L5241] FCALL ldv_check_final_state() [L5242] CALL ldv_error() [L4370] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 76 procedures, 594 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 54.4s, OverallIterations: 5, TraceHistogramMax: 8, AutomataDifference: 26.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 2221 SDtfs, 2072 SDslu, 10157 SDs, 0 SdLazy, 4765 SolverSat, 1809 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 167 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 15.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=570occurred 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: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 184 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 26.3s InterpolantComputationTime, 394 NumberOfCodeBlocks, 394 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 306 ConstructedInterpolants, 0 QuantifiedInterpolants, 149982 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...