/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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 [2020-10-15 11:55:14,091 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 11:55:14,093 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 11:55:14,135 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 11:55:14,135 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 11:55:14,145 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 11:55:14,146 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 11:55:14,150 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 11:55:14,152 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 11:55:14,156 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 11:55:14,157 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 11:55:14,158 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 11:55:14,158 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 11:55:14,160 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 11:55:14,163 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 11:55:14,164 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 11:55:14,165 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 11:55:14,166 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 11:55:14,168 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 11:55:14,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 11:55:14,178 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 11:55:14,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 11:55:14,179 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 11:55:14,180 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 11:55:14,193 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 11:55:14,193 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 11:55:14,193 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 11:55:14,198 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 11:55:14,199 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 11:55:14,200 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 11:55:14,200 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 11:55:14,200 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 11:55:14,203 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 11:55:14,204 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 11:55:14,205 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 11:55:14,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 11:55:14,209 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 11:55:14,209 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 11:55:14,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 11:55:14,211 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 11:55:14,212 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 11:55:14,213 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 [2020-10-15 11:55:14,250 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 11:55:14,250 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 11:55:14,253 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 11:55:14,253 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 11:55:14,253 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 11:55:14,253 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 11:55:14,254 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 11:55:14,254 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 11:55:14,254 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 11:55:14,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 11:55:14,255 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 11:55:14,255 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 11:55:14,255 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 11:55:14,256 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 11:55:14,256 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 11:55:14,256 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 11:55:14,256 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 11:55:14,257 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 11:55:14,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 11:55:14,257 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 11:55:14,258 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 11:55:14,258 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 11:55:14,258 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 11:55:14,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 11:55:14,258 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 11:55:14,258 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 11:55:14,259 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 11:55:14,259 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 11:55:14,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 11:55:14,573 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 11:55:14,578 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 11:55:14,580 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 11:55:14,581 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 11:55:14,582 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-4ed3cba-1-100_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2020-10-15 11:55:14,654 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7649ec946/9b662c1c619e4a8fac2feb382344f240/FLAG13367ebc3 [2020-10-15 11:55:15,396 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 11:55:15,397 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-4ed3cba-1-100_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2020-10-15 11:55:15,432 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7649ec946/9b662c1c619e4a8fac2feb382344f240/FLAG13367ebc3 [2020-10-15 11:55:15,476 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7649ec946/9b662c1c619e4a8fac2feb382344f240 [2020-10-15 11:55:15,484 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 11:55:15,487 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 11:55:15,490 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 11:55:15,491 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 11:55:15,494 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 11:55:15,495 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 11:55:15" (1/1) ... [2020-10-15 11:55:15,499 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f776e8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:55:15, skipping insertion in model container [2020-10-15 11:55:15,499 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 11:55:15" (1/1) ... [2020-10-15 11:55:15,510 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 11:55:15,625 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 11:55:16,268 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name writepages at C: (*writepages)(struct address_space___0 * , struct writeback_control * ) [3493] [2020-10-15 11:55:16,269 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] [2020-10-15 11:55:16,269 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] [2020-10-15 11:55:16,270 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] [2020-10-15 11:55:16,270 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name bmap at C: (*bmap)(struct address_space___0 * , sector_t ) [3502] [2020-10-15 11:55:16,271 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] [2020-10-15 11:55:16,271 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name migratepage at C: (*migratepage)(struct address_space___0 * , struct page * , struct page * ) [3510] [2020-10-15 11:55:16,272 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] [2020-10-15 11:55:16,292 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] [2020-10-15 11:55:16,292 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] [2020-10-15 11:55:16,294 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] [2020-10-15 11:55:16,298 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] [2020-10-15 11:55:16,298 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] [2020-10-15 11:55:16,300 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] [2020-10-15 11:55:16,303 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name carrier_raised at C: (*carrier_raised)(struct tty_port___0 *port ) [3923] [2020-10-15 11:55:16,303 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name dtr_rts at C: (*dtr_rts)(struct tty_port___0 *port , int raise ) [3924] [2020-10-15 11:55:16,304 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name shutdown at C: (*shutdown)(struct tty_port___0 *port ) [3925] [2020-10-15 11:55:16,304 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name drop at C: (*drop)(struct tty_port___0 *port ) [3926] [2020-10-15 11:55:16,305 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] [2020-10-15 11:55:16,305 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name destruct at C: (*destruct)(struct tty_port___0 *port ) [3928] [2020-10-15 11:55:17,017 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 11:55:17,111 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 11:55:17,268 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name writepages at C: (*writepages)(struct address_space___0 * , struct writeback_control * ) [3493] [2020-10-15 11:55:17,269 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] [2020-10-15 11:55:17,270 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] [2020-10-15 11:55:17,271 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] [2020-10-15 11:55:17,272 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name bmap at C: (*bmap)(struct address_space___0 * , sector_t ) [3502] [2020-10-15 11:55:17,273 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] [2020-10-15 11:55:17,274 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name migratepage at C: (*migratepage)(struct address_space___0 * , struct page * , struct page * ) [3510] [2020-10-15 11:55:17,275 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] [2020-10-15 11:55:17,288 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] [2020-10-15 11:55:17,290 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] [2020-10-15 11:55:17,291 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] [2020-10-15 11:55:17,292 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] [2020-10-15 11:55:17,294 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] [2020-10-15 11:55:17,295 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] [2020-10-15 11:55:17,296 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name carrier_raised at C: (*carrier_raised)(struct tty_port___0 *port ) [3923] [2020-10-15 11:55:17,297 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name dtr_rts at C: (*dtr_rts)(struct tty_port___0 *port , int raise ) [3924] [2020-10-15 11:55:17,298 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name shutdown at C: (*shutdown)(struct tty_port___0 *port ) [3925] [2020-10-15 11:55:17,298 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name drop at C: (*drop)(struct tty_port___0 *port ) [3926] [2020-10-15 11:55:17,299 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] [2020-10-15 11:55:17,300 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name destruct at C: (*destruct)(struct tty_port___0 *port ) [3928] [2020-10-15 11:55:17,448 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 11:55:17,584 INFO L208 MainTranslator]: Completed translation [2020-10-15 11:55:17,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:55:17 WrapperNode [2020-10-15 11:55:17,586 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 11:55:17,587 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 11:55:17,587 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 11:55:17,587 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 11:55:17,602 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:55:17" (1/1) ... [2020-10-15 11:55:17,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:55:17" (1/1) ... [2020-10-15 11:55:17,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:55:17" (1/1) ... [2020-10-15 11:55:17,709 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:55:17" (1/1) ... [2020-10-15 11:55:17,772 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:55:17" (1/1) ... [2020-10-15 11:55:17,796 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:55:17" (1/1) ... [2020-10-15 11:55:17,818 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:55:17" (1/1) ... [2020-10-15 11:55:17,845 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 11:55:17,846 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 11:55:17,846 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 11:55:17,846 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 11:55:17,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:55:17" (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 [2020-10-15 11:55:17,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 11:55:17,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 11:55:17,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2020-10-15 11:55:17,934 INFO L138 BoogieDeclarations]: Found implementation of procedure get_order [2020-10-15 11:55:17,934 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-15 11:55:17,934 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2020-10-15 11:55:17,934 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2020-10-15 11:55:17,934 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemleak_alloc [2020-10-15 11:55:17,934 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2020-10-15 11:55:17,935 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_index [2020-10-15 11:55:17,935 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_slab [2020-10-15 11:55:17,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-15 11:55:17,936 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_large [2020-10-15 11:55:17,937 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-15 11:55:17,937 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-15 11:55:17,937 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 11:55:17,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-15 11:55:17,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-15 11:55:17,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-15 11:55:17,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-15 11:55:17,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-15 11:55:17,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-15 11:55:17,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-15 11:55:17,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-15 11:55:17,938 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2020-10-15 11:55:17,939 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2020-10-15 11:55:17,939 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2020-10-15 11:55:17,939 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_in [2020-10-15 11:55:17,939 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_out [2020-10-15 11:55:17,939 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2020-10-15 11:55:17,941 INFO L138 BoogieDeclarations]: Found implementation of procedure qcprobe [2020-10-15 11:55:17,941 INFO L138 BoogieDeclarations]: Found implementation of procedure qcinit [2020-10-15 11:55:17,941 INFO L138 BoogieDeclarations]: Found implementation of procedure qcexit [2020-10-15 11:55:17,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_usb_serial_driver_1 [2020-10-15 11:55:17,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_2 [2020-10-15 11:55:17,944 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 11:55:17,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_insert_flip_string_fixed_flag_4 [2020-10-15 11:55:17,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_5 [2020-10-15 11:55:17,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_6 [2020-10-15 11:55:17,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2020-10-15 11:55:17,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-15 11:55:17,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2020-10-15 11:55:17,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_got_tty [2020-10-15 11:55:17,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_tty [2020-10-15 11:55:17,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_free_pages [2020-10-15 11:55:17,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-15 11:55:17,947 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2020-10-15 11:55:17,948 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-15 11:55:17,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-15 11:55:17,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_reset_resume_2 [2020-10-15 11:55:17,948 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2020-10-15 11:55:17,948 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-15 11:55:17,948 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string_fixed_flag [2020-10-15 11:55:17,949 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-10-15 11:55:17,949 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_enable_autosuspend [2020-10-15 11:55:17,949 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-10-15 11:55:17,949 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2020-10-15 11:55:17,949 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2020-10-15 11:55:17,949 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2020-10-15 11:55:17,949 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_register [2020-10-15 11:55:17,950 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_resume [2020-10-15 11:55:17,950 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_suspend [2020-10-15 11:55:17,950 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2020-10-15 11:55:17,950 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_chars_in_buffer [2020-10-15 11:55:17,950 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_close [2020-10-15 11:55:17,950 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_disconnect [2020-10-15 11:55:17,951 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_open [2020-10-15 11:55:17,951 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_release [2020-10-15 11:55:17,951 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_resume [2020-10-15 11:55:17,951 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_startup [2020-10-15 11:55:17,951 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_suspend [2020-10-15 11:55:17,951 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_write [2020-10-15 11:55:17,952 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_write_room [2020-10-15 11:55:17,952 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-15 11:55:17,952 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-15 11:55:17,952 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-15 11:55:17,952 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 11:55:17,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-15 11:55:17,955 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-15 11:55:17,955 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-15 11:55:17,955 INFO L130 BoogieDeclarations]: Found specification of procedure get_order [2020-10-15 11:55:17,957 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2020-10-15 11:55:17,957 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-15 11:55:17,957 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-15 11:55:17,957 INFO L130 BoogieDeclarations]: Found specification of procedure __get_free_pages [2020-10-15 11:55:17,960 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2020-10-15 11:55:17,961 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2020-10-15 11:55:17,962 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2020-10-15 11:55:17,965 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string_fixed_flag [2020-10-15 11:55:17,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_insert_flip_string_fixed_flag_4 [2020-10-15 11:55:17,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_tty [2020-10-15 11:55:17,966 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-15 11:55:17,967 INFO L130 BoogieDeclarations]: Found specification of procedure kmemleak_alloc [2020-10-15 11:55:17,967 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2020-10-15 11:55:17,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 11:55:17,968 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2020-10-15 11:55:17,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-15 11:55:17,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-15 11:55:17,969 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_index [2020-10-15 11:55:17,969 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_slab [2020-10-15 11:55:17,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-15 11:55:17,970 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-15 11:55:17,970 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2020-10-15 11:55:17,970 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_large [2020-10-15 11:55:17,971 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-15 11:55:17,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-15 11:55:17,979 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-15 11:55:17,979 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-15 11:55:17,979 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-15 11:55:17,980 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-15 11:55:17,980 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-15 11:55:17,980 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 11:55:17,980 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 11:55:17,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-15 11:55:17,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-15 11:55:17,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-15 11:55:17,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-15 11:55:17,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-15 11:55:17,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-15 11:55:17,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-15 11:55:17,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_usb_serial_driver_1 [2020-10-15 11:55:17,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_2 [2020-10-15 11:55:17,982 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2020-10-15 11:55:17,982 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2020-10-15 11:55:17,982 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2020-10-15 11:55:17,982 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_in [2020-10-15 11:55:17,982 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_out [2020-10-15 11:55:17,982 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-15 11:55:17,982 INFO L130 BoogieDeclarations]: Found specification of procedure usb_enable_autosuspend [2020-10-15 11:55:17,983 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-10-15 11:55:17,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_5 [2020-10-15 11:55:17,983 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2020-10-15 11:55:17,983 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-10-15 11:55:17,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_6 [2020-10-15 11:55:17,983 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2020-10-15 11:55:17,983 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_register [2020-10-15 11:55:17,983 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2020-10-15 11:55:17,984 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2020-10-15 11:55:17,984 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2020-10-15 11:55:17,984 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_suspend [2020-10-15 11:55:17,984 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_resume [2020-10-15 11:55:17,984 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_open [2020-10-15 11:55:17,984 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_close [2020-10-15 11:55:17,984 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_startup [2020-10-15 11:55:17,985 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_disconnect [2020-10-15 11:55:17,985 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_release [2020-10-15 11:55:17,985 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_write_room [2020-10-15 11:55:17,985 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_write [2020-10-15 11:55:17,985 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_chars_in_buffer [2020-10-15 11:55:17,986 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_suspend [2020-10-15 11:55:17,986 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_resume [2020-10-15 11:55:17,986 INFO L130 BoogieDeclarations]: Found specification of procedure qcprobe [2020-10-15 11:55:17,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-15 11:55:17,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 11:55:17,986 INFO L130 BoogieDeclarations]: Found specification of procedure qcinit [2020-10-15 11:55:17,986 INFO L130 BoogieDeclarations]: Found specification of procedure qcexit [2020-10-15 11:55:17,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_reset_resume_2 [2020-10-15 11:55:17,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-15 11:55:17,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-15 11:55:17,987 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 11:55:17,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-15 11:55:17,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2020-10-15 11:55:17,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2020-10-15 11:55:17,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_got_tty [2020-10-15 11:55:17,988 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-15 11:55:17,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 11:55:17,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-15 11:55:17,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-15 11:55:17,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 11:55:17,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 11:55:18,989 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-15 11:55:20,288 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2020-10-15 11:55:20,387 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 11:55:20,387 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-15 11:55:20,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 11:55:20 BoogieIcfgContainer [2020-10-15 11:55:20,397 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 11:55:20,398 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 11:55:20,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 11:55:20,401 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 11:55:20,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 11:55:15" (1/3) ... [2020-10-15 11:55:20,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e2ee464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 11:55:20, skipping insertion in model container [2020-10-15 11:55:20,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:55:17" (2/3) ... [2020-10-15 11:55:20,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e2ee464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 11:55:20, skipping insertion in model container [2020-10-15 11:55:20,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 11:55:20" (3/3) ... [2020-10-15 11:55:20,405 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-4ed3cba-1-100_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2020-10-15 11:55:20,416 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 11:55:20,425 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 11:55:20,440 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 11:55:20,467 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 11:55:20,467 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 11:55:20,467 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 11:55:20,467 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 11:55:20,468 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 11:55:20,468 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 11:55:20,468 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 11:55:20,468 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 11:55:20,502 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states. [2020-10-15 11:55:20,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-15 11:55:20,517 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 11:55:20,518 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] [2020-10-15 11:55:20,519 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 11:55:20,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 11:55:20,525 INFO L82 PathProgramCache]: Analyzing trace with hash -158870587, now seen corresponding path program 1 times [2020-10-15 11:55:20,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 11:55:20,535 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2100363249] [2020-10-15 11:55:20,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 11:55:21,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:55:21,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:21,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:21,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:26,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:55:26,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-15 11:55:26,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 11:55:26,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5133 [2020-10-15 11:55:26,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:55:26,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:55:26,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 11:55:26,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-15 11:55:26,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 11:55:26,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 11:55:27,347 WARN L193 SmtUtils]: Spent 940.00 ms on a formula simplification that was a NOOP. DAG size: 304 [2020-10-15 11:55:27,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 11:55:27,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:55:27,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:27,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:55:27,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 11:55:27,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:55:27,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-15 11:55:27,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:55:27,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:55:27,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:55:27,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:55:27,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:55:27,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 11:55:27,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 11:55:27,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:55:27,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:27,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:55:27,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:55:27,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:55:27,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 11:55:27,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:55:27,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:55:27,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:55:27,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:55:27,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:55:27,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:55:27,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 11:55:27,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:55:27,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:27,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:55:27,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:55:27,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:55:27,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 11:55:27,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:55:27,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:55:27,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:55:27,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:55:27,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:55:27,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:55:27,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 11:55:27,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:55:27,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:27,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:55:27,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:55:27,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:55:27,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 11:55:27,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:55:27,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:55:27,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:55:27,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:55:27,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:55:27,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:55:27,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-15 11:55:27,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:55:27,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:27,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:27,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:55:27,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 11:55:27,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 11:55:27,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-15 11:55:27,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:55:27,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:55:27,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 11:55:27,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-15 11:55:27,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 11:55:27,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:55:27,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 11:55:28,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:55:28,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:28,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:55:28,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:55:28,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:55:28,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 11:55:28,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:55:28,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:55:28,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 11:55:28,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:55:28,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 11:55:28,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:55:28,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-15 11:55:28,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:55:28,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:28,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:28,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:55:28,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:55:28,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 11:55:28,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 11:55:28,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:55:28,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:55:28,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 11:55:28,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 11:55:28,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 11:55:28,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:55:28,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-15 11:55:28,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:55:28,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:28,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:55:28,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:55:28,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:55:28,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 11:55:28,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:55:28,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:55:28,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 11:55:28,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 11:55:28,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 11:55:28,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:55:28,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-15 11:55:28,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:55:28,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:28,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:55:28,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 11:55:28,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:55:28,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 11:55:28,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:55:28,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:55:28,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:55:28,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-15 11:55:28,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:55:28,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:55:28,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 11:55:28,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:55:28,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:28,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:55:28,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 11:55:28,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:55:28,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 11:55:28,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:55:28,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:55:28,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:55:28,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:55:28,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:55:28,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:55:28,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-15 11:55:28,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:55:28,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:28,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:55:28,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 11:55:28,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:55:28,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 11:55:28,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:55:28,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:55:28,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:55:28,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 11:55:28,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:55:28,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:55:28,316 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-15 11:55:28,317 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2100363249] [2020-10-15 11:55:28,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 11:55:28,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-15 11:55:28,321 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640331868] [2020-10-15 11:55:28,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 11:55:28,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 11:55:28,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 11:55:28,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-15 11:55:28,350 INFO L87 Difference]: Start difference. First operand 570 states. Second operand 13 states. [2020-10-15 11:55:29,036 WARN L193 SmtUtils]: Spent 635.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-15 11:55:30,030 WARN L193 SmtUtils]: Spent 536.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-15 11:55:30,774 WARN L193 SmtUtils]: Spent 507.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-15 11:55:31,541 WARN L193 SmtUtils]: Spent 538.00 ms on a formula simplification that was a NOOP. DAG size: 327 [2020-10-15 11:55:32,241 WARN L193 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 327 [2020-10-15 11:55:32,954 WARN L193 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-15 11:55:33,527 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification that was a NOOP. DAG size: 318 [2020-10-15 11:55:35,480 WARN L193 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 319 [2020-10-15 11:55:37,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 11:55:37,268 INFO L93 Difference]: Finished difference Result 1069 states and 1456 transitions. [2020-10-15 11:55:37,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-15 11:55:37,270 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 70 [2020-10-15 11:55:37,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 11:55:37,290 INFO L225 Difference]: With dead ends: 1069 [2020-10-15 11:55:37,290 INFO L226 Difference]: Without dead ends: 507 [2020-10-15 11:55:37,299 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-10-15 11:55:37,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2020-10-15 11:55:37,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 461. [2020-10-15 11:55:37,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 461 states. [2020-10-15 11:55:37,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 604 transitions. [2020-10-15 11:55:37,450 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 604 transitions. Word has length 70 [2020-10-15 11:55:37,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 11:55:37,451 INFO L479 AbstractCegarLoop]: Abstraction has 461 states and 604 transitions. [2020-10-15 11:55:37,451 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 11:55:37,451 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 604 transitions. [2020-10-15 11:55:37,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-15 11:55:37,456 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 11:55:37,457 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] [2020-10-15 11:55:37,457 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 11:55:37,457 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 11:55:37,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 11:55:37,458 INFO L82 PathProgramCache]: Analyzing trace with hash 261793003, now seen corresponding path program 1 times [2020-10-15 11:55:37,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 11:55:37,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [152555581] [2020-10-15 11:55:37,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 11:55:37,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:55:37,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:37,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:42,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:55:42,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-15 11:55:42,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 11:55:42,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5086 [2020-10-15 11:55:42,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:55:42,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:55:42,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 11:55:42,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-15 11:55:42,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 11:55:42,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:55:43,265 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification that was a NOOP. DAG size: 304 [2020-10-15 11:55:43,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 11:55:43,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:55:43,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:43,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:55:43,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 11:55:43,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:55:43,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 265 [2020-10-15 11:55:43,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:55:43,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:55:43,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:55:43,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:55:43,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:55:43,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:55:43,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 11:55:43,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:55:43,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:43,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:55:43,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:55:43,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:55:43,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 11:55:43,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:55:43,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:55:43,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:55:43,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:55:43,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:55:43,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:55:43,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 11:55:43,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:55:43,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:43,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:55:43,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:55:43,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:55:43,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 11:55:43,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:55:43,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:55:43,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:55:43,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:55:43,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:55:43,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:55:43,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 11:55:43,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:55:43,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:43,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:55:43,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:55:43,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:55:43,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 11:55:43,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:55:43,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:55:43,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:55:43,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:55:43,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:55:43,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:55:43,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-15 11:55:43,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:55:43,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:43,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:55:43,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-15 11:55:43,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:55:43,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-15 11:55:43,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:55:43,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:55:43,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:55:43,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:55:43,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:55:43,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:55:43,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 11:55:43,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:55:43,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:43,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:55:43,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 11:55:43,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:55:43,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 11:55:43,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:55:43,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:55:43,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:55:43,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:55:43,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:55:43,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:55:43,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 11:55:43,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:55:43,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:43,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:55:43,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:55:43,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:55:43,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 11:55:43,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:55:43,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:55:43,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:55:43,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:55:43,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:55:43,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:55:43,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-15 11:55:43,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:55:43,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:43,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:55:43,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 11:55:43,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:55:43,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-15 11:55:43,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:55:43,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:55:43,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 11:55:43,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 11:55:43,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 11:55:43,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:55:43,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-15 11:55:43,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:55:43,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:43,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:43,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:55:43,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 11:55:43,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 11:55:43,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-15 11:55:43,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:55:43,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:55:43,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 11:55:43,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 11:55:43,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 11:55:43,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:55:43,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 11:55:43,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:55:43,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:43,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:55:43,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 11:55:43,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:55:43,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 11:55:43,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:55:43,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:55:43,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:55:43,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-15 11:55:43,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:55:43,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:55:43,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 11:55:43,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:55:43,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:43,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:55:43,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 11:55:43,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:55:43,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 11:55:43,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:55:43,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:55:43,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:55:43,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:55:43,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:55:43,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:55:43,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-15 11:55:43,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:55:43,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:43,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:55:43,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 11:55:43,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:55:43,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 11:55:43,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:55:43,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:55:43,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:55:43,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 11:55:43,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:55:43,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:55:43,996 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-15 11:55:43,997 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [152555581] [2020-10-15 11:55:43,997 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 11:55:43,997 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-15 11:55:43,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035319472] [2020-10-15 11:55:43,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 11:55:43,999 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 11:55:43,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 11:55:44,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-15 11:55:44,000 INFO L87 Difference]: Start difference. First operand 461 states and 604 transitions. Second operand 11 states. [2020-10-15 11:55:44,462 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-15 11:55:45,533 WARN L193 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-15 11:55:46,079 WARN L193 SmtUtils]: Spent 503.00 ms on a formula simplification that was a NOOP. DAG size: 307 [2020-10-15 11:55:46,598 WARN L193 SmtUtils]: Spent 484.00 ms on a formula simplification that was a NOOP. DAG size: 309 [2020-10-15 11:55:49,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 11:55:49,287 INFO L93 Difference]: Finished difference Result 931 states and 1232 transitions. [2020-10-15 11:55:49,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 11:55:49,288 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 78 [2020-10-15 11:55:49,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 11:55:49,295 INFO L225 Difference]: With dead ends: 931 [2020-10-15 11:55:49,295 INFO L226 Difference]: Without dead ends: 508 [2020-10-15 11:55:49,297 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2020-10-15 11:55:49,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2020-10-15 11:55:49,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 462. [2020-10-15 11:55:49,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 462 states. [2020-10-15 11:55:49,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 605 transitions. [2020-10-15 11:55:49,378 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 605 transitions. Word has length 78 [2020-10-15 11:55:49,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 11:55:49,378 INFO L479 AbstractCegarLoop]: Abstraction has 462 states and 605 transitions. [2020-10-15 11:55:49,379 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 11:55:49,379 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 605 transitions. [2020-10-15 11:55:49,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-15 11:55:49,382 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 11:55:49,383 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] [2020-10-15 11:55:49,383 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 11:55:49,383 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 11:55:49,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 11:55:49,384 INFO L82 PathProgramCache]: Analyzing trace with hash 1817946209, now seen corresponding path program 2 times [2020-10-15 11:55:49,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 11:55:49,384 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1502242466] [2020-10-15 11:55:49,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 11:55:49,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:55:49,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:49,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:54,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:55:54,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-15 11:55:54,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 11:55:54,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-15 11:55:54,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:55:54,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:55:54,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 11:55:54,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-15 11:55:54,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 11:55:54,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:55:55,098 WARN L193 SmtUtils]: Spent 498.00 ms on a formula simplification that was a NOOP. DAG size: 304 [2020-10-15 11:55:55,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 11:55:55,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:55:55,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:55,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:55:55,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 11:55:55,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:55:55,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-15 11:55:55,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:55:55,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:55:55,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:55:55,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:55:55,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:55:55,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:55:55,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 11:55:55,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:55:55,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:55,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:55:55,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:55:55,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:55:55,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 11:55:55,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:55:55,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:55:55,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:55:55,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:55:55,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:55:55,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:55:55,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 11:55:55,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:55:55,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:55,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:55:55,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:55:55,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:55:55,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 11:55:55,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:55:55,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:55:55,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:55:55,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:55:55,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:55:55,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:55:55,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 11:55:55,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:55:55,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:55,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:55:55,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:55:55,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:55:55,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 11:55:55,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:55:55,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:55:55,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:55:55,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:55:55,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:55:55,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:55:55,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-15 11:55:55,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:55:55,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:55,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:55:55,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-15 11:55:55,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:55:55,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 11:55:55,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:55:55,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:55:55,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:55:55,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:55:55,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:55:55,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:55:55,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 11:55:55,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:55:55,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:55,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:55:55,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 11:55:55,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:55:55,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 11:55:55,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:55:55,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:55:55,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:55:55,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:55:55,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:55:55,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:55:55,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 11:55:55,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:55:55,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:55,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:55:55,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:55:55,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:55:55,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 11:55:55,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:55:55,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:55:55,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:55:55,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:55:55,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:55:55,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:55:55,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-15 11:55:55,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:55:55,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:55,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:55,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:55:55,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 11:55:55,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 11:55:55,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-15 11:55:55,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:55:55,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:55:55,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 11:55:55,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 11:55:55,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 11:55:55,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:55:55,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-15 11:55:55,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:55:55,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:55,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:55:55,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 11:55:55,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:55:55,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-15 11:55:55,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:55:55,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:55:55,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 11:55:55,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 11:55:55,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 11:55:55,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:55:55,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-15 11:55:55,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:55:55,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:55,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:55:55,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 11:55:55,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:55:55,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 11:55:55,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:55:55,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:55:55,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:55:55,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-15 11:55:55,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:55:55,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:55:55,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 11:55:55,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:55:55,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:55,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:55:55,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 11:55:55,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:55:55,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 11:55:55,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:55:55,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:55:55,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:55:55,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:55:55,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:55:55,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:55:55,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-15 11:55:55,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:55:55,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:55:55,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:55:55,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 11:55:55,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:55:55,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 11:55:55,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:55:55,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:55:55,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:55:55,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 11:55:55,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:55:55,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:55:55,731 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 11:55:55,731 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1502242466] [2020-10-15 11:55:55,732 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 11:55:55,732 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-15 11:55:55,732 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990509061] [2020-10-15 11:55:55,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 11:55:55,733 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 11:55:55,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 11:55:55,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-15 11:55:55,734 INFO L87 Difference]: Start difference. First operand 462 states and 605 transitions. Second operand 12 states. [2020-10-15 11:55:56,381 WARN L193 SmtUtils]: Spent 629.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-15 11:55:57,542 WARN L193 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-15 11:55:58,023 WARN L193 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 307 [2020-10-15 11:55:58,584 WARN L193 SmtUtils]: Spent 516.00 ms on a formula simplification that was a NOOP. DAG size: 307 [2020-10-15 11:55:59,070 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 309 [2020-10-15 11:56:01,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 11:56:01,380 INFO L93 Difference]: Finished difference Result 933 states and 1234 transitions. [2020-10-15 11:56:01,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 11:56:01,381 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 80 [2020-10-15 11:56:01,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 11:56:01,386 INFO L225 Difference]: With dead ends: 933 [2020-10-15 11:56:01,386 INFO L226 Difference]: Without dead ends: 509 [2020-10-15 11:56:01,388 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2020-10-15 11:56:01,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2020-10-15 11:56:01,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 463. [2020-10-15 11:56:01,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2020-10-15 11:56:01,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 606 transitions. [2020-10-15 11:56:01,456 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 606 transitions. Word has length 80 [2020-10-15 11:56:01,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 11:56:01,457 INFO L479 AbstractCegarLoop]: Abstraction has 463 states and 606 transitions. [2020-10-15 11:56:01,457 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-15 11:56:01,457 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 606 transitions. [2020-10-15 11:56:01,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-15 11:56:01,460 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 11:56:01,460 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] [2020-10-15 11:56:01,460 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 11:56:01,460 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 11:56:01,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 11:56:01,461 INFO L82 PathProgramCache]: Analyzing trace with hash -622004693, now seen corresponding path program 3 times [2020-10-15 11:56:01,461 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 11:56:01,461 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [592698391] [2020-10-15 11:56:01,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 11:56:01,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:56:01,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:01,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:06,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:56:06,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-15 11:56:06,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 11:56:06,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5119 [2020-10-15 11:56:06,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:56:06,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:56:06,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 11:56:06,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-15 11:56:06,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 11:56:06,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:56:07,173 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 304 [2020-10-15 11:56:07,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 11:56:07,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:56:07,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:07,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:56:07,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 11:56:07,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:56:07,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-15 11:56:07,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:56:07,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:56:07,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:56:07,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:56:07,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:56:07,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:56:07,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 11:56:07,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:56:07,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:07,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:56:07,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:56:07,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:56:07,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 11:56:07,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:56:07,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:56:07,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:56:07,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:56:07,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:56:07,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:56:07,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 11:56:07,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:56:07,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:07,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:56:07,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:56:07,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:56:07,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 11:56:07,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:56:07,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:56:07,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:56:07,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:56:07,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:56:07,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:56:07,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 11:56:07,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:56:07,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:07,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:56:07,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:56:07,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:56:07,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 11:56:07,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:56:07,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:56:07,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:56:07,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:56:07,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:56:07,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:56:07,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-15 11:56:07,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:56:07,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:07,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:56:07,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-15 11:56:07,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:56:07,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 11:56:07,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:56:07,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:56:07,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:56:07,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:56:07,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:56:07,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 11:56:07,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 11:56:07,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:56:07,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:07,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:56:07,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 11:56:07,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:56:07,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 11:56:07,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:56:07,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:56:07,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:56:07,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:56:07,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:56:07,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:56:07,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 11:56:07,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:56:07,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:07,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:56:07,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 11:56:07,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:56:07,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 11:56:07,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:56:07,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:56:07,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:56:07,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:56:07,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:56:07,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:56:07,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-15 11:56:07,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:56:07,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:07,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:07,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:56:07,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 11:56:07,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 11:56:07,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-15 11:56:07,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:56:07,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:56:07,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 11:56:07,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 11:56:07,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 11:56:07,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:56:07,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-15 11:56:07,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:56:07,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:07,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:56:07,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 11:56:07,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:56:07,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-15 11:56:07,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:56:07,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:56:07,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 11:56:07,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 11:56:07,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 11:56:07,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:56:07,986 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2020-10-15 11:56:07,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-15 11:56:07,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:56:07,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:08,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:56:08,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 11:56:08,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:56:08,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 11:56:08,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:56:08,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:56:08,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:56:08,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-15 11:56:08,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:56:08,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:56:08,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 11:56:08,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:56:08,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:08,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:56:08,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 11:56:08,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:56:08,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 11:56:08,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:56:08,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:56:08,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:56:08,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 11:56:08,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:56:08,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:56:08,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-15 11:56:08,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 11:56:08,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 11:56:08,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 11:56:08,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 11:56:08,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 11:56:08,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 11:56:08,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 11:56:08,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 11:56:08,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 11:56:08,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 11:56:08,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 11:56:08,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 11:56:08,078 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 11:56:08,078 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [592698391] [2020-10-15 11:56:08,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 11:56:08,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-15 11:56:08,082 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929446996] [2020-10-15 11:56:08,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 11:56:08,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 11:56:08,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 11:56:08,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2020-10-15 11:56:08,094 INFO L87 Difference]: Start difference. First operand 463 states and 606 transitions. Second operand 14 states. [2020-10-15 11:56:08,620 WARN L193 SmtUtils]: Spent 492.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-15 11:56:09,687 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-15 11:56:10,212 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification that was a NOOP. DAG size: 307 [2020-10-15 11:56:10,734 WARN L193 SmtUtils]: Spent 489.00 ms on a formula simplification that was a NOOP. DAG size: 307 [2020-10-15 11:56:11,254 WARN L193 SmtUtils]: Spent 478.00 ms on a formula simplification that was a NOOP. DAG size: 307 [2020-10-15 11:56:11,795 WARN L193 SmtUtils]: Spent 500.00 ms on a formula simplification that was a NOOP. DAG size: 309 [2020-10-15 11:56:14,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 11:56:14,332 INFO L93 Difference]: Finished difference Result 935 states and 1236 transitions. [2020-10-15 11:56:14,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 11:56:14,333 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 82 [2020-10-15 11:56:14,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 11:56:14,337 INFO L225 Difference]: With dead ends: 935 [2020-10-15 11:56:14,337 INFO L226 Difference]: Without dead ends: 510 [2020-10-15 11:56:14,339 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=116, Invalid=346, Unknown=0, NotChecked=0, Total=462 [2020-10-15 11:56:14,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2020-10-15 11:56:14,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 464. [2020-10-15 11:56:14,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 464 states. [2020-10-15 11:56:14,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 607 transitions. [2020-10-15 11:56:14,408 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 607 transitions. Word has length 82 [2020-10-15 11:56:14,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 11:56:14,408 INFO L479 AbstractCegarLoop]: Abstraction has 464 states and 607 transitions. [2020-10-15 11:56:14,408 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 11:56:14,408 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 607 transitions. [2020-10-15 11:56:14,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-15 11:56:14,410 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 11:56:14,411 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] [2020-10-15 11:56:14,411 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 11:56:14,411 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 11:56:14,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 11:56:14,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1825088545, now seen corresponding path program 4 times [2020-10-15 11:56:14,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 11:56:14,412 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1897150439] [2020-10-15 11:56:14,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 11:56:14,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 11:56:14,577 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-15 11:56:14,577 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 11:56:14,581 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 11:56:14,592 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2020-10-15 11:56:14,593 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2020-10-15 11:56:14,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 11:56:14 BoogieIcfgContainer [2020-10-15 11:56:14,616 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 11:56:14,618 INFO L168 Benchmark]: Toolchain (without parser) took 59131.86 ms. Allocated memory was 148.4 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 97.3 MB in the beginning and 533.8 MB in the end (delta: -436.4 MB). Peak memory consumption was 577.0 MB. Max. memory is 7.1 GB. [2020-10-15 11:56:14,619 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 148.4 MB. Free memory was 123.0 MB in the beginning and 122.5 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-15 11:56:14,620 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2095.76 ms. Allocated memory was 148.4 MB in the beginning and 209.2 MB in the end (delta: 60.8 MB). Free memory was 97.3 MB in the beginning and 99.4 MB in the end (delta: -2.1 MB). Peak memory consumption was 68.3 MB. Max. memory is 7.1 GB. [2020-10-15 11:56:14,620 INFO L168 Benchmark]: Boogie Preprocessor took 258.63 ms. Allocated memory was 209.2 MB in the beginning and 239.6 MB in the end (delta: 30.4 MB). Free memory was 99.4 MB in the beginning and 186.3 MB in the end (delta: -86.8 MB). Peak memory consumption was 19.7 MB. Max. memory is 7.1 GB. [2020-10-15 11:56:14,621 INFO L168 Benchmark]: RCFGBuilder took 2551.04 ms. Allocated memory was 239.6 MB in the beginning and 308.8 MB in the end (delta: 69.2 MB). Free memory was 186.3 MB in the beginning and 251.5 MB in the end (delta: -65.2 MB). Peak memory consumption was 116.5 MB. Max. memory is 7.1 GB. [2020-10-15 11:56:14,622 INFO L168 Benchmark]: TraceAbstraction took 54218.25 ms. Allocated memory was 308.8 MB in the beginning and 1.2 GB in the end (delta: 853.0 MB). Free memory was 251.5 MB in the beginning and 533.8 MB in the end (delta: -282.3 MB). Peak memory consumption was 570.7 MB. Max. memory is 7.1 GB. [2020-10-15 11:56:14,625 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 148.4 MB. Free memory was 123.0 MB in the beginning and 122.5 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2095.76 ms. Allocated memory was 148.4 MB in the beginning and 209.2 MB in the end (delta: 60.8 MB). Free memory was 97.3 MB in the beginning and 99.4 MB in the end (delta: -2.1 MB). Peak memory consumption was 68.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 258.63 ms. Allocated memory was 209.2 MB in the beginning and 239.6 MB in the end (delta: 30.4 MB). Free memory was 99.4 MB in the beginning and 186.3 MB in the end (delta: -86.8 MB). Peak memory consumption was 19.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2551.04 ms. Allocated memory was 239.6 MB in the beginning and 308.8 MB in the end (delta: 69.2 MB). Free memory was 186.3 MB in the beginning and 251.5 MB in the end (delta: -65.2 MB). Peak memory consumption was 116.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 54218.25 ms. Allocated memory was 308.8 MB in the beginning and 1.2 GB in the end (delta: 853.0 MB). Free memory was 251.5 MB in the beginning and 533.8 MB in the end (delta: -282.3 MB). Peak memory consumption was 570.7 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: 54.1s, OverallIterations: 5, TraceHistogramMax: 8, AutomataDifference: 26.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2232 SDtfs, 2264 SDslu, 8813 SDs, 0 SdLazy, 4206 SolverSat, 1985 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 168 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 15.8s 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: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 26.3s InterpolantComputationTime, 394 NumberOfCodeBlocks, 394 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 306 ConstructedInterpolants, 0 QuantifiedInterpolants, 150948 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 79/110 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...