/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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 [2020-10-14 17:19:31,871 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 17:19:31,873 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 17:19:31,909 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 17:19:31,909 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 17:19:31,917 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 17:19:31,919 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 17:19:31,923 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 17:19:31,926 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 17:19:31,929 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 17:19:31,929 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 17:19:31,930 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 17:19:31,931 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 17:19:31,933 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 17:19:31,935 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 17:19:31,937 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 17:19:31,938 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 17:19:31,940 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 17:19:31,941 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 17:19:31,949 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 17:19:31,951 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 17:19:31,952 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 17:19:31,953 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 17:19:31,953 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 17:19:31,965 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 17:19:31,965 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 17:19:31,965 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 17:19:31,971 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 17:19:31,972 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 17:19:31,972 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 17:19:31,973 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 17:19:31,976 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 17:19:31,977 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 17:19:31,978 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 17:19:31,979 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 17:19:31,979 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 17:19:31,979 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 17:19:31,980 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 17:19:31,980 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 17:19:31,981 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 17:19:31,981 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 17:19:31,982 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 [2020-10-14 17:19:32,004 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 17:19:32,004 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 17:19:32,006 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 17:19:32,006 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 17:19:32,006 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 17:19:32,006 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 17:19:32,007 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 17:19:32,007 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 17:19:32,007 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 17:19:32,007 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 17:19:32,007 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 17:19:32,007 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 17:19:32,008 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 17:19:32,008 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 17:19:32,008 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 17:19:32,008 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 17:19:32,008 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 17:19:32,009 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 17:19:32,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 17:19:32,009 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 17:19:32,009 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 17:19:32,009 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 17:19:32,010 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 17:19:32,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 17:19:32,010 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 17:19:32,010 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 17:19:32,010 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-14 17:19:32,010 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 17:19:32,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 17:19:32,329 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 17:19:32,334 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 17:19:32,337 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 17:19:32,338 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 17:19:32,338 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-4ed3cba-1-100_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2020-10-14 17:19:32,409 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aab82a17f/61193e1aea9741a5912504d57f56d2b4/FLAGe44947ba3 [2020-10-14 17:19:33,227 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 17:19:33,228 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-4ed3cba-1-100_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2020-10-14 17:19:33,278 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aab82a17f/61193e1aea9741a5912504d57f56d2b4/FLAGe44947ba3 [2020-10-14 17:19:33,748 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aab82a17f/61193e1aea9741a5912504d57f56d2b4 [2020-10-14 17:19:33,756 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 17:19:33,758 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 17:19:33,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 17:19:33,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 17:19:33,763 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 17:19:33,764 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:19:33" (1/1) ... [2020-10-14 17:19:33,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57916dbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:19:33, skipping insertion in model container [2020-10-14 17:19:33,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:19:33" (1/1) ... [2020-10-14 17:19:33,775 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 17:19:33,880 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 17:19:34,478 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name writepages at C: (*writepages)(struct address_space___0 * , struct writeback_control * ) [3493] [2020-10-14 17:19:34,478 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] [2020-10-14 17:19:34,479 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] [2020-10-14 17:19:34,483 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] [2020-10-14 17:19:34,483 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name bmap at C: (*bmap)(struct address_space___0 * , sector_t ) [3502] [2020-10-14 17:19:34,485 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] [2020-10-14 17:19:34,485 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name migratepage at C: (*migratepage)(struct address_space___0 * , struct page * , struct page * ) [3510] [2020-10-14 17:19:34,486 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] [2020-10-14 17:19:34,496 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] [2020-10-14 17:19:34,497 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] [2020-10-14 17:19:34,498 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] [2020-10-14 17:19:34,499 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] [2020-10-14 17:19:34,499 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] [2020-10-14 17:19:34,500 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] [2020-10-14 17:19:34,501 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name carrier_raised at C: (*carrier_raised)(struct tty_port___0 *port ) [3923] [2020-10-14 17:19:34,502 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name dtr_rts at C: (*dtr_rts)(struct tty_port___0 *port , int raise ) [3924] [2020-10-14 17:19:34,502 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name shutdown at C: (*shutdown)(struct tty_port___0 *port ) [3925] [2020-10-14 17:19:34,502 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name drop at C: (*drop)(struct tty_port___0 *port ) [3926] [2020-10-14 17:19:34,503 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] [2020-10-14 17:19:34,503 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name destruct at C: (*destruct)(struct tty_port___0 *port ) [3928] [2020-10-14 17:19:35,122 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 17:19:35,201 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 17:19:35,304 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name writepages at C: (*writepages)(struct address_space___0 * , struct writeback_control * ) [3493] [2020-10-14 17:19:35,305 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] [2020-10-14 17:19:35,305 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] [2020-10-14 17:19:35,305 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] [2020-10-14 17:19:35,306 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name bmap at C: (*bmap)(struct address_space___0 * , sector_t ) [3502] [2020-10-14 17:19:35,306 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] [2020-10-14 17:19:35,307 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name migratepage at C: (*migratepage)(struct address_space___0 * , struct page * , struct page * ) [3510] [2020-10-14 17:19:35,307 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] [2020-10-14 17:19:35,316 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] [2020-10-14 17:19:35,317 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] [2020-10-14 17:19:35,317 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] [2020-10-14 17:19:35,318 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] [2020-10-14 17:19:35,318 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] [2020-10-14 17:19:35,319 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] [2020-10-14 17:19:35,320 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name carrier_raised at C: (*carrier_raised)(struct tty_port___0 *port ) [3923] [2020-10-14 17:19:35,320 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name dtr_rts at C: (*dtr_rts)(struct tty_port___0 *port , int raise ) [3924] [2020-10-14 17:19:35,321 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name shutdown at C: (*shutdown)(struct tty_port___0 *port ) [3925] [2020-10-14 17:19:35,321 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name drop at C: (*drop)(struct tty_port___0 *port ) [3926] [2020-10-14 17:19:35,322 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] [2020-10-14 17:19:35,322 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name destruct at C: (*destruct)(struct tty_port___0 *port ) [3928] [2020-10-14 17:19:35,397 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 17:19:35,484 INFO L208 MainTranslator]: Completed translation [2020-10-14 17:19:35,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:19:35 WrapperNode [2020-10-14 17:19:35,485 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 17:19:35,486 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 17:19:35,486 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 17:19:35,486 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 17:19:35,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:19:35" (1/1) ... [2020-10-14 17:19:35,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:19:35" (1/1) ... [2020-10-14 17:19:35,542 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:19:35" (1/1) ... [2020-10-14 17:19:35,542 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:19:35" (1/1) ... [2020-10-14 17:19:35,635 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:19:35" (1/1) ... [2020-10-14 17:19:35,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:19:35" (1/1) ... [2020-10-14 17:19:35,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:19:35" (1/1) ... [2020-10-14 17:19:35,699 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 17:19:35,699 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 17:19:35,699 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 17:19:35,699 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 17:19:35,700 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:19:35" (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 [2020-10-14 17:19:35,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 17:19:35,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 17:19:35,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2020-10-14 17:19:35,773 INFO L138 BoogieDeclarations]: Found implementation of procedure get_order [2020-10-14 17:19:35,773 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-14 17:19:35,773 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2020-10-14 17:19:35,773 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2020-10-14 17:19:35,773 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemleak_alloc [2020-10-14 17:19:35,773 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2020-10-14 17:19:35,774 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_index [2020-10-14 17:19:35,774 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_slab [2020-10-14 17:19:35,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-14 17:19:35,775 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_large [2020-10-14 17:19:35,776 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-14 17:19:35,776 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-14 17:19:35,777 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 17:19:35,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-14 17:19:35,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-14 17:19:35,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-14 17:19:35,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-14 17:19:35,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-14 17:19:35,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-14 17:19:35,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-14 17:19:35,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-14 17:19:35,778 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2020-10-14 17:19:35,778 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2020-10-14 17:19:35,779 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2020-10-14 17:19:35,779 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_in [2020-10-14 17:19:35,779 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_out [2020-10-14 17:19:35,779 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2020-10-14 17:19:35,781 INFO L138 BoogieDeclarations]: Found implementation of procedure qcprobe [2020-10-14 17:19:35,781 INFO L138 BoogieDeclarations]: Found implementation of procedure qcinit [2020-10-14 17:19:35,781 INFO L138 BoogieDeclarations]: Found implementation of procedure qcexit [2020-10-14 17:19:35,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_usb_serial_driver_1 [2020-10-14 17:19:35,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_2 [2020-10-14 17:19:35,783 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 17:19:35,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_insert_flip_string_fixed_flag_4 [2020-10-14 17:19:35,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_5 [2020-10-14 17:19:35,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_6 [2020-10-14 17:19:35,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2020-10-14 17:19:35,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-14 17:19:35,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2020-10-14 17:19:35,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_got_tty [2020-10-14 17:19:35,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_tty [2020-10-14 17:19:35,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_free_pages [2020-10-14 17:19:35,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-14 17:19:35,786 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2020-10-14 17:19:35,787 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-14 17:19:35,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-14 17:19:35,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_reset_resume_2 [2020-10-14 17:19:35,787 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2020-10-14 17:19:35,788 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-14 17:19:35,788 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string_fixed_flag [2020-10-14 17:19:35,788 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-10-14 17:19:35,788 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_enable_autosuspend [2020-10-14 17:19:35,788 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-10-14 17:19:35,788 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2020-10-14 17:19:35,789 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2020-10-14 17:19:35,789 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2020-10-14 17:19:35,789 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_register [2020-10-14 17:19:35,789 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_resume [2020-10-14 17:19:35,789 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_suspend [2020-10-14 17:19:35,789 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2020-10-14 17:19:35,790 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_chars_in_buffer [2020-10-14 17:19:35,790 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_close [2020-10-14 17:19:35,790 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_disconnect [2020-10-14 17:19:35,790 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_open [2020-10-14 17:19:35,790 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_release [2020-10-14 17:19:35,790 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_resume [2020-10-14 17:19:35,791 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_startup [2020-10-14 17:19:35,791 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_suspend [2020-10-14 17:19:35,791 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_write [2020-10-14 17:19:35,791 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_write_room [2020-10-14 17:19:35,791 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-14 17:19:35,792 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-14 17:19:35,792 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-14 17:19:35,792 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 17:19:35,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-14 17:19:35,793 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-14 17:19:35,793 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-14 17:19:35,793 INFO L130 BoogieDeclarations]: Found specification of procedure get_order [2020-10-14 17:19:35,794 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2020-10-14 17:19:35,794 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-14 17:19:35,794 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-14 17:19:35,794 INFO L130 BoogieDeclarations]: Found specification of procedure __get_free_pages [2020-10-14 17:19:35,794 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2020-10-14 17:19:35,794 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2020-10-14 17:19:35,795 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2020-10-14 17:19:35,795 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string_fixed_flag [2020-10-14 17:19:35,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_insert_flip_string_fixed_flag_4 [2020-10-14 17:19:35,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_tty [2020-10-14 17:19:35,795 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-14 17:19:35,796 INFO L130 BoogieDeclarations]: Found specification of procedure kmemleak_alloc [2020-10-14 17:19:35,796 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2020-10-14 17:19:35,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 17:19:35,796 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2020-10-14 17:19:35,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 17:19:35,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 17:19:35,797 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_index [2020-10-14 17:19:35,797 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_slab [2020-10-14 17:19:35,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-14 17:19:35,797 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-14 17:19:35,797 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2020-10-14 17:19:35,798 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_large [2020-10-14 17:19:35,798 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-14 17:19:35,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-14 17:19:35,798 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-14 17:19:35,798 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 17:19:35,798 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-14 17:19:35,799 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 17:19:35,799 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-14 17:19:35,799 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 17:19:35,799 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 17:19:35,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 17:19:35,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-14 17:19:35,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-14 17:19:35,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-14 17:19:35,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-14 17:19:35,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-14 17:19:35,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-14 17:19:35,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_usb_serial_driver_1 [2020-10-14 17:19:35,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_2 [2020-10-14 17:19:35,801 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2020-10-14 17:19:35,801 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2020-10-14 17:19:35,801 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2020-10-14 17:19:35,801 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_in [2020-10-14 17:19:35,802 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_out [2020-10-14 17:19:35,802 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-14 17:19:35,802 INFO L130 BoogieDeclarations]: Found specification of procedure usb_enable_autosuspend [2020-10-14 17:19:35,802 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-10-14 17:19:35,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_5 [2020-10-14 17:19:35,802 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2020-10-14 17:19:35,803 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-10-14 17:19:35,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_6 [2020-10-14 17:19:35,803 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2020-10-14 17:19:35,803 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_register [2020-10-14 17:19:35,803 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2020-10-14 17:19:35,803 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2020-10-14 17:19:35,804 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2020-10-14 17:19:35,804 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_suspend [2020-10-14 17:19:35,804 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_resume [2020-10-14 17:19:35,804 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_open [2020-10-14 17:19:35,804 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_close [2020-10-14 17:19:35,804 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_startup [2020-10-14 17:19:35,805 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_disconnect [2020-10-14 17:19:35,805 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_release [2020-10-14 17:19:35,805 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_write_room [2020-10-14 17:19:35,805 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_write [2020-10-14 17:19:35,805 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_chars_in_buffer [2020-10-14 17:19:35,805 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_suspend [2020-10-14 17:19:35,806 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_resume [2020-10-14 17:19:35,806 INFO L130 BoogieDeclarations]: Found specification of procedure qcprobe [2020-10-14 17:19:35,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 17:19:35,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 17:19:35,806 INFO L130 BoogieDeclarations]: Found specification of procedure qcinit [2020-10-14 17:19:35,806 INFO L130 BoogieDeclarations]: Found specification of procedure qcexit [2020-10-14 17:19:35,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_reset_resume_2 [2020-10-14 17:19:35,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-14 17:19:35,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-14 17:19:35,807 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 17:19:35,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-14 17:19:35,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2020-10-14 17:19:35,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2020-10-14 17:19:35,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_got_tty [2020-10-14 17:19:35,808 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-14 17:19:35,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 17:19:35,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-14 17:19:35,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-14 17:19:35,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 17:19:35,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 17:19:36,750 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-14 17:19:37,988 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2020-10-14 17:19:38,043 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 17:19:38,043 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-14 17:19:38,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:19:38 BoogieIcfgContainer [2020-10-14 17:19:38,052 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 17:19:38,053 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 17:19:38,054 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 17:19:38,057 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 17:19:38,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:19:33" (1/3) ... [2020-10-14 17:19:38,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12a83f9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:19:38, skipping insertion in model container [2020-10-14 17:19:38,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:19:35" (2/3) ... [2020-10-14 17:19:38,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12a83f9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:19:38, skipping insertion in model container [2020-10-14 17:19:38,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:19:38" (3/3) ... [2020-10-14 17:19:38,060 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-4ed3cba-1-100_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2020-10-14 17:19:38,072 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 17:19:38,080 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 17:19:38,094 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 17:19:38,120 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 17:19:38,121 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 17:19:38,121 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 17:19:38,121 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 17:19:38,121 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 17:19:38,121 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 17:19:38,121 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 17:19:38,121 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 17:19:38,161 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states. [2020-10-14 17:19:38,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-14 17:19:38,189 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:19:38,191 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] [2020-10-14 17:19:38,191 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:19:38,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:19:38,198 INFO L82 PathProgramCache]: Analyzing trace with hash -158870587, now seen corresponding path program 1 times [2020-10-14 17:19:38,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:19:38,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1564781230] [2020-10-14 17:19:38,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:19:38,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:19:39,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:19:39,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:19:39,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:19:43,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:19:43,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 17:19:43,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 17:19:43,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-10-14 17:19:43,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:19:43,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:19:43,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 17:19:43,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-14 17:19:43,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 17:19:43,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-10-14 17:19:44,682 WARN L193 SmtUtils]: Spent 621.00 ms on a formula simplification that was a NOOP. DAG size: 304 [2020-10-14 17:19:44,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:19:44,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:19:44,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:19:44,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:19:44,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:19:44,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:19:44,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-14 17:19:44,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:19:44,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:19:44,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:19:44,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:19:44,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:19:44,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-14 17:19:44,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:19:45,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:19:45,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:19:45,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:19:45,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:19:45,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:19:45,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 17:19:45,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:19:45,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:19:45,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:19:45,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:19:45,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:19:45,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:19:45,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 17:19:45,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:19:45,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:19:45,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:19:45,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:19:45,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:19:45,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 17:19:45,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:19:45,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:19:45,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:19:45,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:19:45,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:19:45,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:19:45,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 17:19:45,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:19:45,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:19:45,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:19:45,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:19:45,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:19:45,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 17:19:45,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:19:45,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:19:45,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:19:45,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:19:45,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:19:45,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:19:45,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 17:19:45,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:19:45,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:19:45,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:19:45,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 17:19:45,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:19:45,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 17:19:45,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:19:45,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:19:45,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 17:19:45,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 17:19:45,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 17:19:45,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:19:45,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:19:45,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:19:45,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:19:45,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:19:45,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:19:45,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:19:45,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 17:19:45,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:19:45,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:19:45,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 17:19:45,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:19:45,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 17:19:45,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:19:45,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 17:19:45,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:19:45,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:19:45,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:19:45,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:19:45,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:19:45,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:19:45,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 17:19:45,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:19:45,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:19:45,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:19:45,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 17:19:45,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:19:45,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:19:45,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 17:19:45,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:19:45,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:19:45,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:19:45,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:19:45,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:19:45,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:19:45,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 17:19:45,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:19:45,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:19:45,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:19:45,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 17:19:45,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:19:45,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:19:45,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 17:19:45,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:19:45,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:19:45,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:19:45,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 17:19:45,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:19:45,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 17:19:45,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:19:45,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:19:45,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:19:45,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 17:19:45,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:19:45,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:19:45,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:19:45,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:19:45,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:19:45,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:19:45,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:19:45,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:19:45,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 17:19:45,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:19:45,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:19:45,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:19:45,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:19:45,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:19:45,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:19:45,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-14 17:19:45,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:19:45,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:19:45,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:19:45,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 17:19:45,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:19:45,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 17:19:45,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:19:45,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:19:45,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:19:45,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 17:19:45,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:19:45,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:19:45,556 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-14 17:19:45,557 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1564781230] [2020-10-14 17:19:45,559 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 17:19:45,559 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-14 17:19:45,560 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979129699] [2020-10-14 17:19:45,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 17:19:45,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:19:45,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 17:19:45,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-14 17:19:45,584 INFO L87 Difference]: Start difference. First operand 570 states. Second operand 11 states. [2020-10-14 17:19:46,225 WARN L193 SmtUtils]: Spent 598.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-14 17:19:47,165 WARN L193 SmtUtils]: Spent 495.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-14 17:19:47,789 WARN L193 SmtUtils]: Spent 500.00 ms on a formula simplification that was a NOOP. DAG size: 307 [2020-10-14 17:19:48,531 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-14 17:19:49,108 WARN L193 SmtUtils]: Spent 500.00 ms on a formula simplification that was a NOOP. DAG size: 320 [2020-10-14 17:19:51,314 WARN L193 SmtUtils]: Spent 503.00 ms on a formula simplification that was a NOOP. DAG size: 320 [2020-10-14 17:19:52,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:19:52,991 INFO L93 Difference]: Finished difference Result 1235 states and 1748 transitions. [2020-10-14 17:19:52,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 17:19:52,993 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 70 [2020-10-14 17:19:52,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:19:53,015 INFO L225 Difference]: With dead ends: 1235 [2020-10-14 17:19:53,015 INFO L226 Difference]: Without dead ends: 671 [2020-10-14 17:19:53,023 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2020-10-14 17:19:53,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2020-10-14 17:19:53,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 460. [2020-10-14 17:19:53,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 460 states. [2020-10-14 17:19:53,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 603 transitions. [2020-10-14 17:19:53,165 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 603 transitions. Word has length 70 [2020-10-14 17:19:53,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:19:53,165 INFO L479 AbstractCegarLoop]: Abstraction has 460 states and 603 transitions. [2020-10-14 17:19:53,166 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 17:19:53,166 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 603 transitions. [2020-10-14 17:19:53,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-14 17:19:53,171 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:19:53,171 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 17:19:53,172 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 17:19:53,172 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:19:53,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:19:53,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1442978977, now seen corresponding path program 1 times [2020-10-14 17:19:53,172 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:19:53,173 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [875654840] [2020-10-14 17:19:53,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:19:53,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:19:53,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:19:53,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:19:58,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:19:58,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 17:19:58,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:19:58,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5097 [2020-10-14 17:19:58,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:19:58,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:19:58,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 17:19:58,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-14 17:19:58,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 17:19:58,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:19:58,921 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification that was a NOOP. DAG size: 304 [2020-10-14 17:19:58,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:19:58,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:19:58,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:19:59,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:19:59,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:19:59,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:19:59,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-14 17:19:59,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:19:59,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:19:59,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:19:59,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:19:59,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:19:59,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:19:59,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:19:59,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:19:59,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:19:59,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:19:59,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:19:59,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:19:59,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 17:19:59,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:19:59,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:19:59,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:19:59,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:19:59,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:19:59,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:19:59,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 17:19:59,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:19:59,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:19:59,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:19:59,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:19:59,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:19:59,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 17:19:59,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:19:59,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:19:59,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:19:59,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:19:59,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:19:59,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:19:59,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 17:19:59,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:19:59,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:19:59,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:19:59,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:19:59,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:19:59,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 17:19:59,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:19:59,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:19:59,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:19:59,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:19:59,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:19:59,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:19:59,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 17:19:59,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:19:59,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:19:59,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:19:59,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-14 17:19:59,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:19:59,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 17:19:59,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:19:59,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:19:59,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:19:59,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:19:59,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:19:59,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:19:59,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:19:59,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:19:59,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:19:59,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:19:59,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 17:19:59,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:19:59,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 17:19:59,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:19:59,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:19:59,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:19:59,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:19:59,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:19:59,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:19:59,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 17:19:59,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:19:59,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:19:59,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:19:59,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:19:59,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:19:59,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 17:19:59,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:19:59,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:19:59,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:19:59,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:19:59,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:19:59,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:19:59,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 17:19:59,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:19:59,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:19:59,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:19:59,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:19:59,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:19:59,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 17:19:59,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:19:59,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:19:59,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 17:19:59,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 17:19:59,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:19:59,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:19:59,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 17:19:59,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:19:59,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:19:59,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:19:59,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:19:59,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:19:59,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:19:59,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 17:19:59,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:19:59,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:19:59,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:19:59,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 17:19:59,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:19:59,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:19:59,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 17:19:59,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:19:59,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:19:59,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:19:59,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 17:19:59,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:19:59,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 17:19:59,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:19:59,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:19:59,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:19:59,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 17:19:59,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:19:59,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:19:59,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:19:59,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:19:59,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:19:59,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:19:59,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:19:59,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:19:59,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 17:19:59,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:19:59,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:19:59,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:19:59,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:19:59,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:19:59,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:19:59,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 17:19:59,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:19:59,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:19:59,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:19:59,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 17:19:59,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:19:59,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:19:59,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:19:59,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:19:59,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:19:59,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 17:19:59,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:19:59,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:19:59,610 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-14 17:19:59,611 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [875654840] [2020-10-14 17:19:59,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:19:59,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 17:19:59,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570778801] [2020-10-14 17:19:59,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 17:19:59,614 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:19:59,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 17:19:59,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 17:19:59,615 INFO L87 Difference]: Start difference. First operand 460 states and 603 transitions. Second operand 10 states. [2020-10-14 17:20:00,189 WARN L193 SmtUtils]: Spent 550.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-14 17:20:01,212 WARN L193 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-14 17:20:01,726 WARN L193 SmtUtils]: Spent 478.00 ms on a formula simplification that was a NOOP. DAG size: 318 [2020-10-14 17:20:04,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:20:04,064 INFO L93 Difference]: Finished difference Result 929 states and 1230 transitions. [2020-10-14 17:20:04,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 17:20:04,065 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 76 [2020-10-14 17:20:04,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:20:04,074 INFO L225 Difference]: With dead ends: 929 [2020-10-14 17:20:04,074 INFO L226 Difference]: Without dead ends: 507 [2020-10-14 17:20:04,079 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-10-14 17:20:04,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2020-10-14 17:20:04,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 461. [2020-10-14 17:20:04,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 461 states. [2020-10-14 17:20:04,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 604 transitions. [2020-10-14 17:20:04,177 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 604 transitions. Word has length 76 [2020-10-14 17:20:04,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:20:04,177 INFO L479 AbstractCegarLoop]: Abstraction has 461 states and 604 transitions. [2020-10-14 17:20:04,178 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 17:20:04,178 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 604 transitions. [2020-10-14 17:20:04,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-14 17:20:04,180 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:20:04,181 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] [2020-10-14 17:20:04,181 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 17:20:04,181 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:20:04,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:20:04,182 INFO L82 PathProgramCache]: Analyzing trace with hash 261793003, now seen corresponding path program 1 times [2020-10-14 17:20:04,182 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:20:04,182 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1353205350] [2020-10-14 17:20:04,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:20:04,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:20:04,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:04,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:09,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:20:09,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 17:20:09,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:20:09,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5089 [2020-10-14 17:20:09,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:20:09,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:20:09,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 17:20:09,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-14 17:20:09,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 17:20:09,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:20:09,847 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 304 [2020-10-14 17:20:09,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:20:09,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:20:09,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:09,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:20:09,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:20:09,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:20:09,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-14 17:20:09,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:20:09,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:20:09,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:20:09,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:20:09,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:20:09,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:20:10,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:20:10,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:20:10,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:10,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:20:10,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:20:10,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:20:10,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 17:20:10,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:20:10,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:20:10,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:20:10,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:20:10,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:20:10,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:20:10,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 17:20:10,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:20:10,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:10,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:20:10,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:20:10,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:20:10,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 17:20:10,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:20:10,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:20:10,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:20:10,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:20:10,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:20:10,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:20:10,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 17:20:10,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:20:10,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:10,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:20:10,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:20:10,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:20:10,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 17:20:10,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:20:10,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:20:10,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:20:10,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:20:10,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:20:10,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:20:10,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 17:20:10,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:20:10,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:10,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:20:10,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-14 17:20:10,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:20:10,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 17:20:10,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:20:10,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:20:10,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:20:10,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:20:10,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:20:10,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:20:10,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:20:10,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:20:10,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:10,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:20:10,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 17:20:10,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:20:10,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 17:20:10,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:20:10,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:20:10,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:20:10,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:20:10,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:20:10,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:20:10,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 17:20:10,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:20:10,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:10,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:20:10,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:20:10,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:20:10,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 17:20:10,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:20:10,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:20:10,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:20:10,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:20:10,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:20:10,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:20:10,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 17:20:10,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:20:10,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:10,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:20:10,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 17:20:10,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:20:10,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 17:20:10,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:20:10,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:20:10,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 17:20:10,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 17:20:10,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 17:20:10,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:20:10,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-14 17:20:10,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:20:10,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:10,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:10,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:20:10,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 17:20:10,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:20:10,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 17:20:10,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:20:10,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:20:10,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:20:10,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 17:20:10,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:20:10,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:20:10,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 17:20:10,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:20:10,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:10,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:20:10,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 17:20:10,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:20:10,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 17:20:10,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:20:10,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:20:10,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:20:10,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 17:20:10,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:20:10,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:20:10,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:20:10,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:20:10,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:10,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:20:10,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:20:10,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:20:10,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 17:20:10,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:20:10,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:20:10,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:20:10,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:20:10,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:20:10,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:20:10,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 17:20:10,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:20:10,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:10,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:20:10,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 17:20:10,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:20:10,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 17:20:10,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:20:10,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:20:10,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:20:10,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 17:20:10,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:20:10,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:20:10,531 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-14 17:20:10,532 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1353205350] [2020-10-14 17:20:10,532 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:20:10,532 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 17:20:10,533 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563059390] [2020-10-14 17:20:10,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 17:20:10,533 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:20:10,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 17:20:10,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-14 17:20:10,534 INFO L87 Difference]: Start difference. First operand 461 states and 604 transitions. Second operand 11 states. [2020-10-14 17:20:11,019 WARN L193 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-14 17:20:12,036 WARN L193 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-14 17:20:12,535 WARN L193 SmtUtils]: Spent 460.00 ms on a formula simplification that was a NOOP. DAG size: 307 [2020-10-14 17:20:13,051 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification that was a NOOP. DAG size: 309 [2020-10-14 17:20:15,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:20:15,370 INFO L93 Difference]: Finished difference Result 931 states and 1232 transitions. [2020-10-14 17:20:15,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 17:20:15,370 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 78 [2020-10-14 17:20:15,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:20:15,374 INFO L225 Difference]: With dead ends: 931 [2020-10-14 17:20:15,374 INFO L226 Difference]: Without dead ends: 508 [2020-10-14 17:20:15,376 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2020-10-14 17:20:15,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2020-10-14 17:20:15,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 462. [2020-10-14 17:20:15,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 462 states. [2020-10-14 17:20:15,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 605 transitions. [2020-10-14 17:20:15,449 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 605 transitions. Word has length 78 [2020-10-14 17:20:15,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:20:15,450 INFO L479 AbstractCegarLoop]: Abstraction has 462 states and 605 transitions. [2020-10-14 17:20:15,450 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 17:20:15,450 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 605 transitions. [2020-10-14 17:20:15,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-14 17:20:15,453 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:20:15,453 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] [2020-10-14 17:20:15,453 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 17:20:15,453 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:20:15,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:20:15,454 INFO L82 PathProgramCache]: Analyzing trace with hash 1817946209, now seen corresponding path program 2 times [2020-10-14 17:20:15,454 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:20:15,455 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1461842038] [2020-10-14 17:20:15,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:20:15,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:20:15,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:15,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:20,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:20:20,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 17:20:20,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:20:20,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5129 [2020-10-14 17:20:20,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:20:20,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:20:20,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 17:20:20,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-14 17:20:20,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:20:20,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:20:21,174 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 304 [2020-10-14 17:20:21,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:20:21,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:20:21,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:21,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:20:21,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:20:21,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:20:21,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-10-14 17:20:21,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:20:21,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:20:21,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:20:21,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:20:21,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:20:21,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:20:21,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:20:21,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:20:21,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:21,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:20:21,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:20:21,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:20:21,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 17:20:21,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:20:21,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:20:21,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:20:21,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:20:21,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:20:21,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:20:21,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 17:20:21,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:20:21,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:21,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:20:21,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:20:21,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:20:21,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 17:20:21,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:20:21,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:20:21,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:20:21,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:20:21,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:20:21,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:20:21,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 17:20:21,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:20:21,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:21,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:20:21,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:20:21,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:20:21,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 17:20:21,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:20:21,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:20:21,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:20:21,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:20:21,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:20:21,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:20:21,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 17:20:21,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:20:21,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:21,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:20:21,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-14 17:20:21,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:20:21,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 17:20:21,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:20:21,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:20:21,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:20:21,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:20:21,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:20:21,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:20:21,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:20:21,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:20:21,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:21,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:20:21,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 17:20:21,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:20:21,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 17:20:21,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:20:21,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:20:21,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:20:21,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:20:21,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:20:21,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:20:21,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 17:20:21,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:20:21,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:21,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:20:21,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:20:21,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:20:21,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 17:20:21,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:20:21,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:20:21,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:20:21,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:20:21,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:20:21,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:20:21,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 17:20:21,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:20:21,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:21,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:20:21,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 17:20:21,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:20:21,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 17:20:21,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:20:21,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:20:21,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 17:20:21,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 17:20:21,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 17:20:21,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:20:21,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 17:20:21,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:20:21,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:21,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:21,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:20:21,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 17:20:21,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:20:21,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 17:20:21,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:20:21,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:20:21,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:20:21,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 17:20:21,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:20:21,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:20:21,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 17:20:21,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:20:21,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:21,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:20:21,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 17:20:21,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:20:21,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 17:20:21,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:20:21,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:20:21,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:20:21,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 17:20:21,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:20:21,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:20:21,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:20:21,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:20:21,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:21,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:20:21,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:20:21,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:20:21,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 17:20:21,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:20:21,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:20:21,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:20:21,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:20:21,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:20:21,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:20:21,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 17:20:21,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:20:21,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:21,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:20:21,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 17:20:21,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:20:21,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:20:21,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:20:21,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:20:21,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:20:21,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 17:20:21,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:20:21,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:20:21,905 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-14 17:20:21,906 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1461842038] [2020-10-14 17:20:21,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:20:21,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-14 17:20:21,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255217223] [2020-10-14 17:20:21,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 17:20:21,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:20:21,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 17:20:21,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-14 17:20:21,915 INFO L87 Difference]: Start difference. First operand 462 states and 605 transitions. Second operand 12 states. [2020-10-14 17:20:22,359 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-14 17:20:23,452 WARN L193 SmtUtils]: Spent 488.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-14 17:20:23,994 WARN L193 SmtUtils]: Spent 507.00 ms on a formula simplification that was a NOOP. DAG size: 307 [2020-10-14 17:20:24,471 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 307 [2020-10-14 17:20:24,961 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 309 [2020-10-14 17:20:27,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:20:27,416 INFO L93 Difference]: Finished difference Result 933 states and 1234 transitions. [2020-10-14 17:20:27,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 17:20:27,417 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 80 [2020-10-14 17:20:27,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:20:27,422 INFO L225 Difference]: With dead ends: 933 [2020-10-14 17:20:27,422 INFO L226 Difference]: Without dead ends: 509 [2020-10-14 17:20:27,425 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2020-10-14 17:20:27,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2020-10-14 17:20:27,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 463. [2020-10-14 17:20:27,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2020-10-14 17:20:27,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 606 transitions. [2020-10-14 17:20:27,508 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 606 transitions. Word has length 80 [2020-10-14 17:20:27,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:20:27,508 INFO L479 AbstractCegarLoop]: Abstraction has 463 states and 606 transitions. [2020-10-14 17:20:27,508 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 17:20:27,509 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 606 transitions. [2020-10-14 17:20:27,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-14 17:20:27,512 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:20:27,513 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] [2020-10-14 17:20:27,513 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 17:20:27,513 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:20:27,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:20:27,514 INFO L82 PathProgramCache]: Analyzing trace with hash -622004693, now seen corresponding path program 3 times [2020-10-14 17:20:27,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:20:27,515 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1264441369] [2020-10-14 17:20:27,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:20:27,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:20:27,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:28,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:32,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:20:32,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 17:20:32,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:20:32,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5188 [2020-10-14 17:20:32,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:20:32,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:20:32,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 17:20:32,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-14 17:20:32,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 17:20:32,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:20:33,555 WARN L193 SmtUtils]: Spent 655.00 ms on a formula simplification that was a NOOP. DAG size: 304 [2020-10-14 17:20:33,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:20:33,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:20:33,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:33,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:20:33,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:20:33,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:20:33,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 346 [2020-10-14 17:20:33,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:20:33,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:20:33,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:20:33,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:20:33,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:20:33,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:20:34,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:20:34,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:20:34,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:34,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:20:34,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:20:34,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:20:34,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 17:20:34,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:20:34,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:20:34,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:20:34,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:20:34,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:20:34,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:20:34,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 17:20:34,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:20:34,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:34,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:20:34,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:20:34,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:20:34,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 17:20:34,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:20:34,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:20:34,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:20:34,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:20:34,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:20:34,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:20:34,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 17:20:34,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:20:34,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:34,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:20:34,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:20:34,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:20:34,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 17:20:34,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:20:34,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:20:34,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:20:34,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:20:34,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:20:34,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:20:34,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 17:20:34,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:20:34,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:34,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:20:34,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-14 17:20:34,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:20:34,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 17:20:34,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:20:34,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:20:34,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:20:34,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:20:34,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:20:34,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:20:34,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:20:34,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:20:34,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:34,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:20:34,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 17:20:34,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:20:34,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 17:20:34,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:20:34,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:20:34,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:20:34,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:20:34,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:20:34,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:20:34,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 17:20:34,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:20:34,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:34,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:20:34,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:20:34,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:20:34,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 17:20:34,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:20:34,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:20:34,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:20:34,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:20:34,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:20:34,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:20:34,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 17:20:34,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:20:34,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:34,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:20:34,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 17:20:34,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:20:34,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 17:20:34,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:20:34,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:20:34,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 17:20:34,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 17:20:34,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 17:20:34,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:20:34,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 17:20:34,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:20:34,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:34,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:34,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:20:34,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 17:20:34,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:20:34,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 17:20:34,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:20:34,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:20:34,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:20:34,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 17:20:34,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:20:34,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:20:34,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-14 17:20:34,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:20:34,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:34,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:20:34,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 17:20:34,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:20:34,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 17:20:34,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:20:34,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:20:34,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:20:34,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 17:20:34,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:20:34,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:20:34,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:20:34,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:20:34,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:34,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:20:34,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:20:34,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:20:34,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:20:34,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:20:34,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:20:34,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:20:34,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:20:34,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:20:34,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:20:34,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-14 17:20:34,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:20:34,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:20:34,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:20:34,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 17:20:34,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:20:34,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 17:20:34,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:20:34,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:20:34,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:20:34,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 17:20:34,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:20:34,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:20:34,417 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-14 17:20:34,418 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1264441369] [2020-10-14 17:20:34,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 17:20:34,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 17:20:34,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731624110] [2020-10-14 17:20:34,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 17:20:34,419 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:20:34,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 17:20:34,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-14 17:20:34,420 INFO L87 Difference]: Start difference. First operand 463 states and 606 transitions. Second operand 13 states. [2020-10-14 17:20:34,944 WARN L193 SmtUtils]: Spent 486.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-14 17:20:36,199 WARN L193 SmtUtils]: Spent 522.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-14 17:20:36,696 WARN L193 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 307 [2020-10-14 17:20:37,191 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 307 [2020-10-14 17:20:37,708 WARN L193 SmtUtils]: Spent 473.00 ms on a formula simplification that was a NOOP. DAG size: 307 [2020-10-14 17:20:38,215 WARN L193 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 309 [2020-10-14 17:20:41,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:20:41,037 INFO L93 Difference]: Finished difference Result 935 states and 1236 transitions. [2020-10-14 17:20:41,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 17:20:41,037 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 82 [2020-10-14 17:20:41,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:20:41,042 INFO L225 Difference]: With dead ends: 935 [2020-10-14 17:20:41,042 INFO L226 Difference]: Without dead ends: 510 [2020-10-14 17:20:41,044 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=109, Invalid=311, Unknown=0, NotChecked=0, Total=420 [2020-10-14 17:20:41,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2020-10-14 17:20:41,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 464. [2020-10-14 17:20:41,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 464 states. [2020-10-14 17:20:41,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 607 transitions. [2020-10-14 17:20:41,102 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 607 transitions. Word has length 82 [2020-10-14 17:20:41,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:20:41,103 INFO L479 AbstractCegarLoop]: Abstraction has 464 states and 607 transitions. [2020-10-14 17:20:41,103 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 17:20:41,103 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 607 transitions. [2020-10-14 17:20:41,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-14 17:20:41,105 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:20:41,106 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] [2020-10-14 17:20:41,106 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 17:20:41,106 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:20:41,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:20:41,106 INFO L82 PathProgramCache]: Analyzing trace with hash 1825088545, now seen corresponding path program 4 times [2020-10-14 17:20:41,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:20:41,107 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1386077426] [2020-10-14 17:20:41,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:20:41,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-14 17:20:41,268 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-14 17:20:41,268 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 17:20:41,272 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 17:20:41,279 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2020-10-14 17:20:41,280 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2020-10-14 17:20:41,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 05:20:41 BoogieIcfgContainer [2020-10-14 17:20:41,303 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 17:20:41,305 INFO L168 Benchmark]: Toolchain (without parser) took 67547.41 ms. Allocated memory was 147.3 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 96.0 MB in the beginning and 911.4 MB in the end (delta: -815.3 MB). Peak memory consumption was 257.3 MB. Max. memory is 7.1 GB. [2020-10-14 17:20:41,306 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.4 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. [2020-10-14 17:20:41,307 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1726.25 ms. Allocated memory was 147.3 MB in the beginning and 231.2 MB in the end (delta: 83.9 MB). Free memory was 96.0 MB in the beginning and 135.7 MB in the end (delta: -39.7 MB). Peak memory consumption was 60.0 MB. Max. memory is 7.1 GB. [2020-10-14 17:20:41,308 INFO L168 Benchmark]: Boogie Preprocessor took 213.07 ms. Allocated memory is still 231.2 MB. Free memory was 135.7 MB in the beginning and 123.8 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. [2020-10-14 17:20:41,308 INFO L168 Benchmark]: RCFGBuilder took 2353.01 ms. Allocated memory was 231.2 MB in the beginning and 345.5 MB in the end (delta: 114.3 MB). Free memory was 123.8 MB in the beginning and 274.8 MB in the end (delta: -151.0 MB). Peak memory consumption was 79.9 MB. Max. memory is 7.1 GB. [2020-10-14 17:20:41,309 INFO L168 Benchmark]: TraceAbstraction took 63249.91 ms. Allocated memory was 345.5 MB in the beginning and 1.2 GB in the end (delta: 874.5 MB). Free memory was 274.8 MB in the beginning and 911.4 MB in the end (delta: -636.6 MB). Peak memory consumption was 237.9 MB. Max. memory is 7.1 GB. [2020-10-14 17:20:41,313 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 147.3 MB. Free memory was 121.9 MB in the beginning and 121.4 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1726.25 ms. Allocated memory was 147.3 MB in the beginning and 231.2 MB in the end (delta: 83.9 MB). Free memory was 96.0 MB in the beginning and 135.7 MB in the end (delta: -39.7 MB). Peak memory consumption was 60.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 213.07 ms. Allocated memory is still 231.2 MB. Free memory was 135.7 MB in the beginning and 123.8 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2353.01 ms. Allocated memory was 231.2 MB in the beginning and 345.5 MB in the end (delta: 114.3 MB). Free memory was 123.8 MB in the beginning and 274.8 MB in the end (delta: -151.0 MB). Peak memory consumption was 79.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 63249.91 ms. Allocated memory was 345.5 MB in the beginning and 1.2 GB in the end (delta: 874.5 MB). Free memory was 274.8 MB in the beginning and 911.4 MB in the end (delta: -636.6 MB). Peak memory consumption was 237.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 4370]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of large string literal at line 4673. Possible FailurePath: [L4393] int LDV_IN_INTERRUPT = 1; [L4394] int ldv_state_variable_2 ; [L4395] int ref_cnt ; [L4396] struct usb_serial *qcdevice_group1 ; [L4397] int ldv_state_variable_1 ; [L4398] struct usb_interface *qcdriver_group1 ; [L4399] int usb_counter ; [L4400] struct tty_struct *qcdevice_group0 ; [L4401] struct usb_serial_port *qcdevice_group2 ; [L4402] int ldv_state_variable_0 ; [L4496] static int debug ; [L4497-L4670] static struct usb_device_id const id_table[59U] = { {3U, 1478U, 37393U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37394U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1008U, 7965U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1008U, 8221U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1242U, 9485U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1242U, 9484U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 16700U, 33138U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 16700U, 33137U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 5136U, 40961U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 5136U, 40968U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2821U, 6006U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2821U, 6004U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 6610U, 65523U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 6610U, 65522U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 5463U, 2688U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 36865U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 36866U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37378U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37379U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37410U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 36872U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37377U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37409U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37425U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 8005U, 1U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 16700U, 33157U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 16700U, 33158U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37384U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37387U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37412U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37413U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37444U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37445U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1008U, 9245U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1008U, 9501U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37396U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37397U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37476U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37477U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37428U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37429U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37492U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37493U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4505U, 36864U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4505U, 36865U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4505U, 36866U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4505U, 36867U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4505U, 36868U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4505U, 36869U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4505U, 36870U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4505U, 36871U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4505U, 36872U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4505U, 36873U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4505U, 36874U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 5848U, 32769U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 5848U, 32770U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37380U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37381U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}}; [L4671] struct usb_device_id const __mod_usb_device_table ; [L4672-L4686] static struct usb_driver qcdriver = {"qcserial", & usb_serial_probe, & usb_serial_disconnect, 0, & usb_serial_suspend, & usb_serial_resume, 0, 0, 0, (struct usb_device_id const *)(& id_table), {{{{{0U}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}}, {{0, 0, 0, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, 0}, (unsigned char)0, 1U, (unsigned char)0}; [L4822-L4828] static struct usb_serial_driver qcdevice = {"Qualcomm USB modem", (struct usb_device_id const *)(& id_table), 1, {0, 0}, {"qcserial", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, & qcdriver, {{{{{0U}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}}, 0UL, 0UL, & qcprobe, & usb_wwan_startup, 0, & usb_wwan_disconnect, & usb_wwan_release, 0, 0, & usb_wwan_suspend, & usb_wwan_resume, & usb_wwan_open, & usb_wwan_close, & usb_wwan_write, & usb_wwan_write_room, 0, 0, 0, & usb_wwan_chars_in_buffer, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; [L4856] int ldv_retval_9 ; [L4857] int ldv_retval_2 ; [L4858] int ldv_retval_5 ; [L4859] int ldv_retval_0 ; [L4860] int ldv_retval_4 ; [L4861] int ldv_retval_6 ; [L4863] int ldv_retval_1 ; [L4865] int ldv_retval_8 ; [L4866] int ldv_retval_3 ; [L4867] int ldv_retval_7 ; [L5286] struct tty_struct___0 *ldv_latest_tty ; [L4894] struct usb_device_id *ldvarg1 ; [L4895] void *tmp ; [L4896] unsigned char *ldvarg3 ; [L4897] void *tmp___0 ; [L4898] pm_message_t ldvarg0 ; [L4899] int ldvarg2 ; [L4900] int tmp___1 ; [L4901] pm_message_t ldvarg4 ; [L4902] struct usb_device_id *ldvarg5 ; [L4903] void *tmp___2 ; [L4904] int tmp___3 ; [L4905] int tmp___4 ; [L4906] int tmp___5 ; [L4907] int tmp___6 ; [L4909] CALL, EXPR ldv_zalloc(24UL) [L4335] void *p ; [L4336] void *tmp ; [L4337] int tmp___0 ; [L4339] tmp___0 = __VERIFIER_nondet_int() [L4340] COND TRUE tmp___0 != 0 [L4341] return ((void *)0); [L4909] RET, EXPR ldv_zalloc(24UL) [L4909] tmp = ldv_zalloc(24UL) [L4910] ldvarg1 = (struct usb_device_id *)tmp [L4911] CALL, EXPR ldv_zalloc(1UL) [L4335] void *p ; [L4336] void *tmp ; [L4337] int tmp___0 ; [L4339] tmp___0 = __VERIFIER_nondet_int() [L4340] COND TRUE tmp___0 != 0 [L4341] return ((void *)0); [L4911] RET, EXPR ldv_zalloc(1UL) [L4911] tmp___0 = ldv_zalloc(1UL) [L4912] ldvarg3 = (unsigned char *)tmp___0 [L4913] tmp___1 = __VERIFIER_nondet_int() [L4914] ldvarg2 = tmp___1 [L4915] CALL, EXPR ldv_zalloc(24UL) [L4335] void *p ; [L4336] void *tmp ; [L4337] int tmp___0 ; [L4339] tmp___0 = __VERIFIER_nondet_int() [L4340] COND TRUE tmp___0 != 0 [L4341] return ((void *)0); [L4915] RET, EXPR ldv_zalloc(24UL) [L4915] tmp___2 = ldv_zalloc(24UL) [L4916] ldvarg5 = (struct usb_device_id *)tmp___2 [L4917] CALL ldv_initialize() [L5290] CALL, EXPR ldv_malloc(sizeof(struct tty_struct___0)) [L4318] void *p ; [L4319] void *tmp ; [L4320] int tmp___0 ; [L4322] tmp___0 = __VERIFIER_nondet_int() [L4323] COND FALSE !(tmp___0 != 0) [L4326] tmp = malloc(size) [L4327] p = tmp [L4328] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) [L4314] COND FALSE !(!cond) [L4328] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) [L4329] return (p); [L5290] RET, EXPR ldv_malloc(sizeof(struct tty_struct___0)) [L5290] ldv_latest_tty = ldv_malloc(sizeof(struct tty_struct___0)) [L5291] COND TRUE (unsigned long )ldv_latest_tty != (unsigned long )((void *)0) [L4917] RET ldv_initialize() [L4918] FCALL memset((void *)(& ldvarg0), 0, 4UL) [L4919] FCALL memset((void *)(& ldvarg4), 0, 4UL) [L4920] ldv_state_variable_1 = 0 [L4921] ref_cnt = 0 [L4922] ldv_state_variable_0 = 1 [L4923] ldv_state_variable_2 = 0 [L4925] tmp___3 = __VERIFIER_nondet_int() [L4927] case 0: [L5133] case 1: [L5134] COND TRUE ldv_state_variable_0 != 0 [L5135] tmp___5 = __VERIFIER_nondet_int() [L5137] case 0: [L5145] case 1: [L5146] COND TRUE ldv_state_variable_0 == 1 [L5147] CALL, EXPR qcinit() [L4831] int retval ; [L4833] CALL, EXPR usb_serial_register(& qcdevice) [L5381] return __VERIFIER_nondet_int(); [L4833] RET, EXPR usb_serial_register(& qcdevice) [L4833] retval = usb_serial_register(& qcdevice) [L4834] COND TRUE retval != 0 [L4835] return (retval); [L5147] RET, EXPR qcinit() [L5147] ldv_retval_5 = qcinit() [L5148] COND TRUE ldv_retval_5 != 0 [L5149] ldv_state_variable_0 = 3 [L5241] FCALL ldv_check_final_state() [L5242] CALL ldv_error() [L4370] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 76 procedures, 594 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 63.1s, OverallIterations: 6, TraceHistogramMax: 8, AutomataDifference: 28.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2992 SDtfs, 3095 SDslu, 10985 SDs, 0 SdLazy, 5035 SolverSat, 2570 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 188 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 15.7s 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: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 395 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 32.3s InterpolantComputationTime, 470 NumberOfCodeBlocks, 470 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 381 ConstructedInterpolants, 0 QuantifiedInterpolants, 181876 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 78/126 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...