java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/array-memsafety/openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-4cf2d92 [2018-03-28 12:30:02,432 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-03-28 12:30:02,434 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-03-28 12:30:02,449 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-03-28 12:30:02,450 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-03-28 12:30:02,451 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-03-28 12:30:02,452 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-03-28 12:30:02,453 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-03-28 12:30:02,456 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-03-28 12:30:02,456 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-03-28 12:30:02,457 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-03-28 12:30:02,458 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-03-28 12:30:02,459 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-03-28 12:30:02,460 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-03-28 12:30:02,461 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-03-28 12:30:02,463 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-03-28 12:30:02,465 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-03-28 12:30:02,467 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-03-28 12:30:02,468 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-03-28 12:30:02,469 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-03-28 12:30:02,472 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-03-28 12:30:02,472 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-03-28 12:30:02,472 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-03-28 12:30:02,473 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-03-28 12:30:02,474 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-03-28 12:30:02,476 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-03-28 12:30:02,476 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-03-28 12:30:02,477 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-03-28 12:30:02,477 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-03-28 12:30:02,477 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-03-28 12:30:02,478 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-03-28 12:30:02,478 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf [2018-03-28 12:30:02,501 INFO L110 SettingsManager]: Loading preferences was successful [2018-03-28 12:30:02,502 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-03-28 12:30:02,502 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-03-28 12:30:02,502 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-03-28 12:30:02,503 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-03-28 12:30:02,503 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-03-28 12:30:02,503 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-03-28 12:30:02,503 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-03-28 12:30:02,503 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-03-28 12:30:02,503 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-03-28 12:30:02,504 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-03-28 12:30:02,504 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-03-28 12:30:02,504 INFO L133 SettingsManager]: * sizeof long=4 [2018-03-28 12:30:02,504 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-03-28 12:30:02,504 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-03-28 12:30:02,504 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-03-28 12:30:02,505 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-03-28 12:30:02,505 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-03-28 12:30:02,505 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-03-28 12:30:02,505 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-03-28 12:30:02,505 INFO L133 SettingsManager]: * sizeof long double=12 [2018-03-28 12:30:02,505 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-03-28 12:30:02,506 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-03-28 12:30:02,506 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-03-28 12:30:02,506 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-03-28 12:30:02,506 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-03-28 12:30:02,506 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-03-28 12:30:02,507 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-03-28 12:30:02,507 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-03-28 12:30:02,507 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-03-28 12:30:02,507 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-03-28 12:30:02,507 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:30:02,507 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-03-28 12:30:02,508 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-03-28 12:30:02,508 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-03-28 12:30:02,509 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-03-28 12:30:02,509 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-03-28 12:30:02,542 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-03-28 12:30:02,552 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-03-28 12:30:02,555 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-03-28 12:30:02,556 INFO L271 PluginConnector]: Initializing CDTParser... [2018-03-28 12:30:02,556 INFO L276 PluginConnector]: CDTParser initialized [2018-03-28 12:30:02,557 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:02,881 INFO L228 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG545334c4a [2018-03-28 12:30:03,070 INFO L291 CDTParser]: IsIndexed: true [2018-03-28 12:30:03,070 INFO L292 CDTParser]: Found 1 translation units. [2018-03-28 12:30:03,071 INFO L171 CDTParser]: Scanning openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,081 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-03-28 12:30:03,082 INFO L215 ultiparseSymbolTable]: [2018-03-28 12:30:03,082 INFO L218 ultiparseSymbolTable]: Function table: [2018-03-28 12:30:03,082 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_64 ('__bswap_64') in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,082 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,082 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_32 ('__bswap_32') in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,082 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspn ('cstrspn') in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,083 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-03-28 12:30:03,083 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__fsfilcnt_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,083 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____ssize_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,083 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____socklen_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,083 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__u_int64_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,083 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____time_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,083 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__int8_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,083 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__gid_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,084 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____nlink_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,084 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____blkcnt64_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,084 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__ldiv_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,084 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_mutex_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,084 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____u_short in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,084 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__ino_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,084 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__register_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,084 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pid_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,084 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__int32_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,085 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____rlim_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,085 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____fsfilcnt64_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,085 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__timer_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,085 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__u_int in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,085 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__mode_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,085 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____int32_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,085 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__key_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,085 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____suseconds_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,085 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____int8_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,086 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____fsblkcnt64_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,086 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__fsblkcnt_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,086 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____rlim64_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,086 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____fsfilcnt_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,086 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_mutexattr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,086 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____timer_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,086 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,086 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____id_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,087 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__nlink_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,087 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____qaddr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,087 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____int64_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,087 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____fsblkcnt_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,087 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____syscall_ulong_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,087 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__loff_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,087 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__u_int8_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,087 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__uint in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,088 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____fd_mask in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,088 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____u_int in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,088 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_key_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,088 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_rwlock_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,088 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____uid_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,088 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__u_quad_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,088 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____key_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,089 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____sig_atomic_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,089 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____fsword_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,089 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____uint64_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,089 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____useconds_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,089 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__sigset_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,089 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____blkcnt_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,089 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_barrierattr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,089 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__ssize_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,089 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__time_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,089 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__dev_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,090 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__id_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,090 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____uint16_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,090 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____fsid_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,090 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____ino64_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,090 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__daddr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,090 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____quad_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,090 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____syscall_slong_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,090 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__ushort in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,090 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____u_quad_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,091 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_rwlockattr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,091 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__suseconds_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,091 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__u_long in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,091 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__fd_mask in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,091 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_barrier_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,091 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__clock_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,091 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____off_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,091 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__fsid_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,091 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____clock_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,091 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__clockid_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,091 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____uint8_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,091 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__u_int32_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,091 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____loff_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,091 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____pid_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,091 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____daddr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,092 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__int64_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,092 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_condattr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,092 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____blksize_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,092 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____gid_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,092 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____WAIT_STATUS in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,092 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__lldiv_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,092 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____dev_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,092 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__int16_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,092 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__uid_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,092 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____u_char in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,092 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____off64_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,092 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__fd_set in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,093 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_attr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,093 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____caddr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,093 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__wchar_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,093 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__caddr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,093 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__u_int16_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,093 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_cond_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,093 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__ulong in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,093 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____sigset_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,093 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____pthread_list_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,093 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____clockid_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,094 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__u_char in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,094 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__quad_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,094 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__blkcnt_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,094 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__size_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,094 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__off_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,094 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__u_short in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,094 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____int16_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,094 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__div_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,095 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_once_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,095 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____intptr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,095 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____ino_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,095 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____uint32_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,095 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____u_long in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,095 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____mode_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,095 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__blksize_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,095 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_spinlock_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:03,112 INFO L334 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG545334c4a [2018-03-28 12:30:03,117 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-03-28 12:30:03,121 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-03-28 12:30:03,122 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-03-28 12:30:03,122 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-03-28 12:30:03,129 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-03-28 12:30:03,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 12:30:03" (1/1) ... [2018-03-28 12:30:03,133 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c2888f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:30:03, skipping insertion in model container [2018-03-28 12:30:03,133 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 12:30:03" (1/1) ... [2018-03-28 12:30:03,154 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-28 12:30:03,184 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-28 12:30:03,356 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-28 12:30:03,403 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-28 12:30:03,410 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 112 non ball SCCs. Number of states in SCCs 112. [2018-03-28 12:30:03,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:30:03 WrapperNode [2018-03-28 12:30:03,458 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-03-28 12:30:03,459 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-03-28 12:30:03,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-03-28 12:30:03,460 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-03-28 12:30:03,475 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:30:03" (1/1) ... [2018-03-28 12:30:03,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:30:03" (1/1) ... [2018-03-28 12:30:03,492 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:30:03" (1/1) ... [2018-03-28 12:30:03,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:30:03" (1/1) ... [2018-03-28 12:30:03,506 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:30:03" (1/1) ... [2018-03-28 12:30:03,511 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:30:03" (1/1) ... [2018-03-28 12:30:03,514 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:30:03" (1/1) ... [2018-03-28 12:30:03,519 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-03-28 12:30:03,520 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-03-28 12:30:03,520 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-03-28 12:30:03,520 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-03-28 12:30:03,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:30:03" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-03-28 12:30:03,637 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-03-28 12:30:03,637 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-03-28 12:30:03,637 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-03-28 12:30:03,637 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-03-28 12:30:03,637 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspn [2018-03-28 12:30:03,637 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-03-28 12:30:03,638 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-03-28 12:30:03,638 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-03-28 12:30:03,638 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-03-28 12:30:03,638 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-03-28 12:30:03,638 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-03-28 12:30:03,638 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-03-28 12:30:03,638 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-03-28 12:30:03,638 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-03-28 12:30:03,638 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-03-28 12:30:03,639 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-03-28 12:30:03,639 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-03-28 12:30:03,639 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-03-28 12:30:03,639 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-03-28 12:30:03,639 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-03-28 12:30:03,639 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-03-28 12:30:03,639 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-03-28 12:30:03,639 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-03-28 12:30:03,639 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-03-28 12:30:03,639 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-03-28 12:30:03,640 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-03-28 12:30:03,640 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-03-28 12:30:03,640 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-03-28 12:30:03,640 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-03-28 12:30:03,640 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-03-28 12:30:03,640 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-03-28 12:30:03,640 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-03-28 12:30:03,640 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-03-28 12:30:03,641 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-03-28 12:30:03,641 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-03-28 12:30:03,641 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-03-28 12:30:03,641 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-03-28 12:30:03,641 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-03-28 12:30:03,641 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-03-28 12:30:03,641 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-03-28 12:30:03,641 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-03-28 12:30:03,642 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-03-28 12:30:03,642 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-03-28 12:30:03,642 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-03-28 12:30:03,642 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-03-28 12:30:03,642 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-03-28 12:30:03,642 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-03-28 12:30:03,642 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-03-28 12:30:03,643 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-03-28 12:30:03,643 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-03-28 12:30:03,643 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-03-28 12:30:03,643 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-03-28 12:30:03,643 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-03-28 12:30:03,643 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-03-28 12:30:03,643 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-03-28 12:30:03,643 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-03-28 12:30:03,644 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-03-28 12:30:03,644 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-03-28 12:30:03,644 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-03-28 12:30:03,644 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-03-28 12:30:03,644 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-03-28 12:30:03,644 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-03-28 12:30:03,644 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-03-28 12:30:03,645 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-03-28 12:30:03,645 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-03-28 12:30:03,645 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-03-28 12:30:03,645 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-03-28 12:30:03,645 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-03-28 12:30:03,645 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-03-28 12:30:03,645 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-03-28 12:30:03,645 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-03-28 12:30:03,646 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-03-28 12:30:03,646 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-03-28 12:30:03,646 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-03-28 12:30:03,646 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-03-28 12:30:03,646 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-03-28 12:30:03,646 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-03-28 12:30:03,646 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-03-28 12:30:03,646 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-03-28 12:30:03,647 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-03-28 12:30:03,647 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-03-28 12:30:03,647 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-03-28 12:30:03,647 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-03-28 12:30:03,647 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-03-28 12:30:03,647 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-03-28 12:30:03,647 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-03-28 12:30:03,648 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-03-28 12:30:03,648 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-03-28 12:30:03,648 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-03-28 12:30:03,648 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-03-28 12:30:03,648 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-03-28 12:30:03,648 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-03-28 12:30:03,648 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-03-28 12:30:03,648 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-03-28 12:30:03,649 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-03-28 12:30:03,649 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-03-28 12:30:03,649 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-03-28 12:30:03,649 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-03-28 12:30:03,649 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-03-28 12:30:03,649 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-03-28 12:30:03,649 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-03-28 12:30:03,649 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-03-28 12:30:03,650 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-03-28 12:30:03,650 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-03-28 12:30:03,650 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-03-28 12:30:03,650 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-03-28 12:30:03,650 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-03-28 12:30:03,650 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-03-28 12:30:03,650 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-03-28 12:30:03,651 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspn [2018-03-28 12:30:03,651 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-03-28 12:30:03,651 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-03-28 12:30:03,651 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-03-28 12:30:03,651 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-03-28 12:30:03,651 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-03-28 12:30:03,651 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-03-28 12:30:03,651 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-03-28 12:30:03,652 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-03-28 12:30:04,000 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-03-28 12:30:04,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:30:04 BoogieIcfgContainer [2018-03-28 12:30:04,000 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-03-28 12:30:04,001 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-03-28 12:30:04,002 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-03-28 12:30:04,005 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-03-28 12:30:04,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.03 12:30:03" (1/3) ... [2018-03-28 12:30:04,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ac52ff2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 12:30:04, skipping insertion in model container [2018-03-28 12:30:04,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:30:03" (2/3) ... [2018-03-28 12:30:04,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ac52ff2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 12:30:04, skipping insertion in model container [2018-03-28 12:30:04,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:30:04" (3/3) ... [2018-03-28 12:30:04,008 INFO L107 eAbstractionObserver]: Analyzing ICFG openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:30:04,015 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-03-28 12:30:04,021 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-03-28 12:30:04,065 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-03-28 12:30:04,066 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-03-28 12:30:04,066 INFO L370 AbstractCegarLoop]: Hoare is true [2018-03-28 12:30:04,066 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-03-28 12:30:04,066 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-03-28 12:30:04,066 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-03-28 12:30:04,067 INFO L374 AbstractCegarLoop]: Difference is false [2018-03-28 12:30:04,067 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-03-28 12:30:04,067 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-03-28 12:30:04,068 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-03-28 12:30:04,082 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states. [2018-03-28 12:30:04,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-03-28 12:30:04,086 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:30:04,087 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:30:04,087 INFO L408 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:30:04,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1416876498, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:30:04,104 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:30:04,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:30:04,145 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:30:04,192 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 12:30:04,194 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:30:04,198 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:30:04,198 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-03-28 12:30:04,219 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-03-28 12:30:04,220 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:30:04,234 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-28 12:30:04,235 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2018-03-28 12:30:04,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:30:04,247 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:30:04,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:30:04,306 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:30:04,306 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-03-28 12:30:04,308 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-03-28 12:30:04,318 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-03-28 12:30:04,318 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-03-28 12:30:04,320 INFO L87 Difference]: Start difference. First operand 69 states. Second operand 4 states. [2018-03-28 12:30:04,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:30:04,416 INFO L93 Difference]: Finished difference Result 83 states and 86 transitions. [2018-03-28 12:30:04,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-03-28 12:30:04,418 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2018-03-28 12:30:04,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:30:04,430 INFO L225 Difference]: With dead ends: 83 [2018-03-28 12:30:04,430 INFO L226 Difference]: Without dead ends: 65 [2018-03-28 12:30:04,434 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-03-28 12:30:04,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-03-28 12:30:04,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-03-28 12:30:04,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-03-28 12:30:04,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 68 transitions. [2018-03-28 12:30:04,474 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 68 transitions. Word has length 19 [2018-03-28 12:30:04,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:30:04,474 INFO L459 AbstractCegarLoop]: Abstraction has 65 states and 68 transitions. [2018-03-28 12:30:04,474 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-03-28 12:30:04,475 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 68 transitions. [2018-03-28 12:30:04,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-03-28 12:30:04,475 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:30:04,476 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:30:04,476 INFO L408 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:30:04,476 INFO L82 PathProgramCache]: Analyzing trace with hash 1416876499, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:30:04,483 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:30:04,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:30:04,498 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:30:04,509 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 12:30:04,510 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:30:04,532 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 12:30:04,533 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:30:04,539 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:30:04,539 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:19, output treesize:17 [2018-03-28 12:30:04,566 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:30:04,569 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-03-28 12:30:04,569 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:30:04,589 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:30:04,590 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:30:04,591 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-03-28 12:30:04,591 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:30:04,599 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:30:04,599 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:28, output treesize:12 [2018-03-28 12:30:04,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:30:04,640 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:30:04,799 INFO L267 ElimStorePlain]: Start of recursive call 1: End of recursive call: and 1 xjuncts. [2018-03-28 12:30:04,800 INFO L202 ElimStorePlain]: Needed 1 recursive calls to eliminate 5 variables, input treesize:25, output treesize:3 [2018-03-28 12:30:04,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:30:04,848 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:30:04,848 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2018-03-28 12:30:04,850 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-03-28 12:30:04,850 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-03-28 12:30:04,851 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-03-28 12:30:04,851 INFO L87 Difference]: Start difference. First operand 65 states and 68 transitions. Second operand 9 states. [2018-03-28 12:30:04,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:30:04,980 INFO L93 Difference]: Finished difference Result 65 states and 68 transitions. [2018-03-28 12:30:04,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-03-28 12:30:04,980 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-03-28 12:30:04,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:30:04,982 INFO L225 Difference]: With dead ends: 65 [2018-03-28 12:30:04,982 INFO L226 Difference]: Without dead ends: 64 [2018-03-28 12:30:04,983 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-03-28 12:30:04,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-03-28 12:30:04,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-03-28 12:30:04,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-03-28 12:30:04,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 67 transitions. [2018-03-28 12:30:04,991 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 67 transitions. Word has length 19 [2018-03-28 12:30:04,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:30:04,992 INFO L459 AbstractCegarLoop]: Abstraction has 64 states and 67 transitions. [2018-03-28 12:30:04,992 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-03-28 12:30:04,992 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 67 transitions. [2018-03-28 12:30:04,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-03-28 12:30:04,993 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:30:04,993 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:30:04,994 INFO L408 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:30:04,994 INFO L82 PathProgramCache]: Analyzing trace with hash 973498482, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:30:05,000 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:30:05,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:30:05,032 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:30:05,045 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 12:30:05,046 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:30:05,054 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:30:05,054 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-03-28 12:30:05,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:30:05,081 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:30:05,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:30:05,110 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:30:05,110 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-03-28 12:30:05,110 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-03-28 12:30:05,110 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-03-28 12:30:05,110 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-03-28 12:30:05,111 INFO L87 Difference]: Start difference. First operand 64 states and 67 transitions. Second operand 4 states. [2018-03-28 12:30:05,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:30:05,145 INFO L93 Difference]: Finished difference Result 64 states and 67 transitions. [2018-03-28 12:30:05,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-03-28 12:30:05,145 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-03-28 12:30:05,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:30:05,146 INFO L225 Difference]: With dead ends: 64 [2018-03-28 12:30:05,146 INFO L226 Difference]: Without dead ends: 63 [2018-03-28 12:30:05,147 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-03-28 12:30:05,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-03-28 12:30:05,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-03-28 12:30:05,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-03-28 12:30:05,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 66 transitions. [2018-03-28 12:30:05,155 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 66 transitions. Word has length 20 [2018-03-28 12:30:05,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:30:05,155 INFO L459 AbstractCegarLoop]: Abstraction has 63 states and 66 transitions. [2018-03-28 12:30:05,155 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-03-28 12:30:05,155 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 66 transitions. [2018-03-28 12:30:05,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-03-28 12:30:05,156 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:30:05,156 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:30:05,156 INFO L408 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:30:05,157 INFO L82 PathProgramCache]: Analyzing trace with hash 973498483, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:30:05,163 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:30:05,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:30:05,175 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:30:05,182 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 12:30:05,182 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:30:05,187 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:30:05,187 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-03-28 12:30:05,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:30:05,213 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:30:05,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:30:05,270 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:30:05,271 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2018-03-28 12:30:05,271 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-03-28 12:30:05,271 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-03-28 12:30:05,271 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-03-28 12:30:05,271 INFO L87 Difference]: Start difference. First operand 63 states and 66 transitions. Second operand 7 states. [2018-03-28 12:30:05,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:30:05,318 INFO L93 Difference]: Finished difference Result 63 states and 66 transitions. [2018-03-28 12:30:05,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-03-28 12:30:05,318 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-03-28 12:30:05,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:30:05,319 INFO L225 Difference]: With dead ends: 63 [2018-03-28 12:30:05,319 INFO L226 Difference]: Without dead ends: 62 [2018-03-28 12:30:05,320 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-03-28 12:30:05,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-03-28 12:30:05,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2018-03-28 12:30:05,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-03-28 12:30:05,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 65 transitions. [2018-03-28 12:30:05,324 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 65 transitions. Word has length 20 [2018-03-28 12:30:05,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:30:05,324 INFO L459 AbstractCegarLoop]: Abstraction has 62 states and 65 transitions. [2018-03-28 12:30:05,324 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-03-28 12:30:05,324 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 65 transitions. [2018-03-28 12:30:05,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-03-28 12:30:05,325 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:30:05,325 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:30:05,325 INFO L408 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:30:05,325 INFO L82 PathProgramCache]: Analyzing trace with hash -54369342, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:30:05,332 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:30:05,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:30:05,349 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:30:05,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:30:05,389 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:30:05,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:30:05,414 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:30:05,414 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2018-03-28 12:30:05,414 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-03-28 12:30:05,414 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-03-28 12:30:05,415 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-03-28 12:30:05,415 INFO L87 Difference]: Start difference. First operand 62 states and 65 transitions. Second operand 7 states. [2018-03-28 12:30:05,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:30:05,533 INFO L93 Difference]: Finished difference Result 62 states and 65 transitions. [2018-03-28 12:30:05,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-03-28 12:30:05,533 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2018-03-28 12:30:05,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:30:05,534 INFO L225 Difference]: With dead ends: 62 [2018-03-28 12:30:05,534 INFO L226 Difference]: Without dead ends: 61 [2018-03-28 12:30:05,535 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-03-28 12:30:05,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-03-28 12:30:05,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2018-03-28 12:30:05,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-03-28 12:30:05,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 64 transitions. [2018-03-28 12:30:05,539 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 64 transitions. Word has length 30 [2018-03-28 12:30:05,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:30:05,539 INFO L459 AbstractCegarLoop]: Abstraction has 61 states and 64 transitions. [2018-03-28 12:30:05,539 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-03-28 12:30:05,540 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 64 transitions. [2018-03-28 12:30:05,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-03-28 12:30:05,540 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:30:05,540 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:30:05,540 INFO L408 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:30:05,540 INFO L82 PathProgramCache]: Analyzing trace with hash -54369341, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:30:05,546 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:30:05,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:30:05,565 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:30:05,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:30:05,625 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:30:05,634 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-03-28 12:30:05,635 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:30:05,640 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2018-03-28 12:30:05,641 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:30:05,644 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:30:05,644 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2018-03-28 12:30:05,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:30:05,677 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:30:05,677 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2018-03-28 12:30:05,677 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-03-28 12:30:05,678 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-03-28 12:30:05,678 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-03-28 12:30:05,678 INFO L87 Difference]: Start difference. First operand 61 states and 64 transitions. Second operand 10 states. [2018-03-28 12:30:05,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:30:05,886 INFO L93 Difference]: Finished difference Result 65 states and 68 transitions. [2018-03-28 12:30:05,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-03-28 12:30:05,887 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 30 [2018-03-28 12:30:05,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:30:05,888 INFO L225 Difference]: With dead ends: 65 [2018-03-28 12:30:05,888 INFO L226 Difference]: Without dead ends: 64 [2018-03-28 12:30:05,888 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 49 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2018-03-28 12:30:05,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-03-28 12:30:05,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-03-28 12:30:05,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-03-28 12:30:05,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 67 transitions. [2018-03-28 12:30:05,895 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 67 transitions. Word has length 30 [2018-03-28 12:30:05,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:30:05,895 INFO L459 AbstractCegarLoop]: Abstraction has 64 states and 67 transitions. [2018-03-28 12:30:05,895 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-03-28 12:30:05,896 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 67 transitions. [2018-03-28 12:30:05,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-03-28 12:30:05,897 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:30:05,897 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:30:05,897 INFO L408 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:30:05,897 INFO L82 PathProgramCache]: Analyzing trace with hash 2100809862, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:30:05,903 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:30:05,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:30:05,928 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:30:05,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:30:05,953 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:30:05,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:30:05,983 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:30:05,983 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2018-03-28 12:30:05,984 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-03-28 12:30:05,984 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-03-28 12:30:05,984 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-03-28 12:30:05,984 INFO L87 Difference]: Start difference. First operand 64 states and 67 transitions. Second operand 7 states. [2018-03-28 12:30:06,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:30:06,076 INFO L93 Difference]: Finished difference Result 68 states and 71 transitions. [2018-03-28 12:30:06,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-03-28 12:30:06,076 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2018-03-28 12:30:06,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:30:06,077 INFO L225 Difference]: With dead ends: 68 [2018-03-28 12:30:06,078 INFO L226 Difference]: Without dead ends: 67 [2018-03-28 12:30:06,078 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-03-28 12:30:06,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-03-28 12:30:06,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 63. [2018-03-28 12:30:06,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-03-28 12:30:06,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 66 transitions. [2018-03-28 12:30:06,085 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 66 transitions. Word has length 38 [2018-03-28 12:30:06,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:30:06,085 INFO L459 AbstractCegarLoop]: Abstraction has 63 states and 66 transitions. [2018-03-28 12:30:06,085 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-03-28 12:30:06,085 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 66 transitions. [2018-03-28 12:30:06,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-03-28 12:30:06,086 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:30:06,086 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:30:06,087 INFO L408 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:30:06,087 INFO L82 PathProgramCache]: Analyzing trace with hash 2100809863, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:30:06,093 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:30:06,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:30:06,112 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:30:06,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:30:06,167 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:30:06,178 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2018-03-28 12:30:06,178 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:30:06,187 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-03-28 12:30:06,188 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:30:06,190 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:30:06,191 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2018-03-28 12:30:06,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:30:06,228 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:30:06,228 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2018-03-28 12:30:06,229 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-03-28 12:30:06,229 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-03-28 12:30:06,229 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-03-28 12:30:06,230 INFO L87 Difference]: Start difference. First operand 63 states and 66 transitions. Second operand 10 states. [2018-03-28 12:30:06,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:30:06,363 INFO L93 Difference]: Finished difference Result 68 states and 71 transitions. [2018-03-28 12:30:06,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-03-28 12:30:06,363 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 38 [2018-03-28 12:30:06,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:30:06,364 INFO L225 Difference]: With dead ends: 68 [2018-03-28 12:30:06,364 INFO L226 Difference]: Without dead ends: 67 [2018-03-28 12:30:06,364 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 65 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2018-03-28 12:30:06,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-03-28 12:30:06,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2018-03-28 12:30:06,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-03-28 12:30:06,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 70 transitions. [2018-03-28 12:30:06,369 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 70 transitions. Word has length 38 [2018-03-28 12:30:06,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:30:06,369 INFO L459 AbstractCegarLoop]: Abstraction has 67 states and 70 transitions. [2018-03-28 12:30:06,369 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-03-28 12:30:06,369 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 70 transitions. [2018-03-28 12:30:06,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-03-28 12:30:06,370 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:30:06,370 INFO L355 BasicCegarLoop]: trace histogram [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] [2018-03-28 12:30:06,370 INFO L408 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:30:06,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1894495506, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:30:06,378 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:30:06,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:30:06,408 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:30:06,417 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 12:30:06,417 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:30:06,420 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:30:06,421 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-28 12:30:06,435 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:30:06,437 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:30:06,438 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-03-28 12:30:06,438 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:30:06,441 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:30:06,441 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:8 [2018-03-28 12:30:06,457 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-03-28 12:30:06,459 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-03-28 12:30:06,459 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:30:06,460 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:30:06,466 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-28 12:30:06,466 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:25 [2018-03-28 12:30:06,487 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 26 [2018-03-28 12:30:06,490 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-03-28 12:30:06,490 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:30:06,509 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:30:06,517 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-03-28 12:30:06,517 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:39, output treesize:35 [2018-03-28 12:30:07,011 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2018-03-28 12:30:07,018 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 13 [2018-03-28 12:30:07,019 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-03-28 12:30:07,032 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2018-03-28 12:30:07,033 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-03-28 12:30:07,036 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:30:07,057 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:30:07,057 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:52, output treesize:29 [2018-03-28 12:30:07,262 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:30:07,262 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:30:07,701 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-03-28 12:30:07,701 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:30:07,708 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-03-28 12:30:07,719 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-03-28 12:30:07,719 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-03-28 12:30:07,721 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:30:07,726 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:30:07,726 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:35, output treesize:7 [2018-03-28 12:30:07,766 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:30:07,791 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:30:07,791 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 14] total 30 [2018-03-28 12:30:07,791 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-03-28 12:30:07,791 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-03-28 12:30:07,792 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=836, Unknown=0, NotChecked=0, Total=930 [2018-03-28 12:30:07,792 INFO L87 Difference]: Start difference. First operand 67 states and 70 transitions. Second operand 31 states. [2018-03-28 12:30:10,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:30:10,439 INFO L93 Difference]: Finished difference Result 107 states and 111 transitions. [2018-03-28 12:30:10,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-03-28 12:30:10,439 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 46 [2018-03-28 12:30:10,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:30:10,440 INFO L225 Difference]: With dead ends: 107 [2018-03-28 12:30:10,440 INFO L226 Difference]: Without dead ends: 106 [2018-03-28 12:30:10,441 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 60 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=387, Invalid=2583, Unknown=0, NotChecked=0, Total=2970 [2018-03-28 12:30:10,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2018-03-28 12:30:10,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 87. [2018-03-28 12:30:10,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-03-28 12:30:10,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 93 transitions. [2018-03-28 12:30:10,452 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 93 transitions. Word has length 46 [2018-03-28 12:30:10,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:30:10,453 INFO L459 AbstractCegarLoop]: Abstraction has 87 states and 93 transitions. [2018-03-28 12:30:10,453 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-03-28 12:30:10,453 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 93 transitions. [2018-03-28 12:30:10,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-03-28 12:30:10,454 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:30:10,454 INFO L355 BasicCegarLoop]: trace histogram [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] [2018-03-28 12:30:10,454 INFO L408 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:30:10,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1397965012, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:30:10,461 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:30:10,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:30:10,481 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:30:10,492 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-03-28 12:30:10,494 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-03-28 12:30:10,494 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:30:10,496 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:30:10,500 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-28 12:30:10,501 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:21 [2018-03-28 12:30:10,602 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-03-28 12:30:10,613 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 13 [2018-03-28 12:30:10,614 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-03-28 12:30:10,635 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:30:10,654 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:30:10,654 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:38, output treesize:29 [2018-03-28 12:30:10,744 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:30:10,745 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:30:10,982 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-03-28 12:30:10,982 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:30:10,989 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-03-28 12:30:10,997 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-03-28 12:30:10,998 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-03-28 12:30:10,999 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:30:11,004 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:30:11,004 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:35, output treesize:7 [2018-03-28 12:30:11,011 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:30:11,032 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:30:11,033 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2018-03-28 12:30:11,033 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-03-28 12:30:11,033 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-03-28 12:30:11,033 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2018-03-28 12:30:11,034 INFO L87 Difference]: Start difference. First operand 87 states and 93 transitions. Second operand 23 states. [2018-03-28 12:30:11,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:30:11,978 INFO L93 Difference]: Finished difference Result 129 states and 142 transitions. [2018-03-28 12:30:11,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-03-28 12:30:11,979 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 47 [2018-03-28 12:30:11,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:30:11,981 INFO L225 Difference]: With dead ends: 129 [2018-03-28 12:30:11,981 INFO L226 Difference]: Without dead ends: 128 [2018-03-28 12:30:11,982 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 71 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=288, Invalid=1272, Unknown=0, NotChecked=0, Total=1560 [2018-03-28 12:30:11,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2018-03-28 12:30:11,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 105. [2018-03-28 12:30:11,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-03-28 12:30:11,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 115 transitions. [2018-03-28 12:30:11,992 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 115 transitions. Word has length 47 [2018-03-28 12:30:11,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:30:11,992 INFO L459 AbstractCegarLoop]: Abstraction has 105 states and 115 transitions. [2018-03-28 12:30:11,992 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-03-28 12:30:11,992 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 115 transitions. [2018-03-28 12:30:11,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-03-28 12:30:11,993 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:30:11,993 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:30:11,994 INFO L408 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:30:11,994 INFO L82 PathProgramCache]: Analyzing trace with hash -625421328, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:30:12,001 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:30:12,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:30:12,029 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:30:12,059 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:30:12,060 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-03-28 12:30:12,062 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-03-28 12:30:12,062 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:30:12,065 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:30:12,069 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-03-28 12:30:12,069 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-03-28 12:30:12,132 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc8.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc8.base| 1))) (and (= 0 (select .cse0 |c_main_#t~malloc9.base|)) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc9.base| 1) |main_#t~malloc8.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc8.base|))))) is different from true [2018-03-28 12:30:12,138 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc8.base| Int) (|main_#t~malloc9.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc8.base| 1))) (and (= 0 (select .cse0 |main_#t~malloc9.base|)) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc9.base| 1) |main_#t~malloc8.base| 0) |main_#t~malloc9.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc8.base|))))) is different from true [2018-03-28 12:30:12,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:30:12,160 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:30:12,204 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc9.base_14| Int)) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc9.base_14|))) (= |c_old(#valid)| (store (store (store |c_#valid| |v_main_#t~malloc9.base_14| 1) |c_main_#t~malloc8.base| 0) |v_main_#t~malloc9.base_14| 0)))) is different from false [2018-03-28 12:30:12,208 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc9.base_14| Int) (|v_main_#t~malloc8.base_13| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc8.base_13| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc9.base_14| 1) |v_main_#t~malloc8.base_13| 0) |v_main_#t~malloc9.base_14| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc8.base_13|))) (not (= 0 (select .cse0 |v_main_#t~malloc9.base_14|)))))) is different from false [2018-03-28 12:30:12,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:30:12,257 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:30:12,257 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11, 6] imperfect sequences [] total 15 [2018-03-28 12:30:12,257 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-03-28 12:30:12,257 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-03-28 12:30:12,257 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=107, Unknown=4, NotChecked=92, Total=240 [2018-03-28 12:30:12,258 INFO L87 Difference]: Start difference. First operand 105 states and 115 transitions. Second operand 16 states. [2018-03-28 12:30:12,269 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc9.base_14| Int) (|v_main_#t~malloc8.base_13| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc8.base_13| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc9.base_14| 1) |v_main_#t~malloc8.base_13| 0) |v_main_#t~malloc9.base_14| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc8.base_13|))) (not (= 0 (select .cse0 |v_main_#t~malloc9.base_14|))))))) is different from false [2018-03-28 12:30:12,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:30:12,552 INFO L93 Difference]: Finished difference Result 195 states and 214 transitions. [2018-03-28 12:30:12,552 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-03-28 12:30:12,552 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 52 [2018-03-28 12:30:12,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:30:12,555 INFO L225 Difference]: With dead ends: 195 [2018-03-28 12:30:12,555 INFO L226 Difference]: Without dead ends: 182 [2018-03-28 12:30:12,556 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 90 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=283, Unknown=6, NotChecked=190, Total=552 [2018-03-28 12:30:12,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2018-03-28 12:30:12,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 180. [2018-03-28 12:30:12,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2018-03-28 12:30:12,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 198 transitions. [2018-03-28 12:30:12,582 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 198 transitions. Word has length 52 [2018-03-28 12:30:12,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:30:12,582 INFO L459 AbstractCegarLoop]: Abstraction has 180 states and 198 transitions. [2018-03-28 12:30:12,582 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-03-28 12:30:12,583 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 198 transitions. [2018-03-28 12:30:12,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-03-28 12:30:12,584 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:30:12,584 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:30:12,585 INFO L408 AbstractCegarLoop]: === Iteration 12 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:30:12,585 INFO L82 PathProgramCache]: Analyzing trace with hash 257699090, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:30:12,595 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:30:12,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:30:12,618 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:30:12,665 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:30:12,665 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-03-28 12:30:12,668 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-03-28 12:30:12,669 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:30:12,673 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:30:12,678 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-03-28 12:30:12,678 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-03-28 12:30:12,778 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc8.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc8.base| 1))) (and (= 0 (select .cse0 |c_main_#t~malloc9.base|)) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc9.base| 1) |main_#t~malloc8.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc8.base|))))) is different from true [2018-03-28 12:30:12,782 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc8.base| Int) (|main_#t~malloc9.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc8.base| 1))) (and (= 0 (select .cse0 |main_#t~malloc9.base|)) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc9.base| 1) |main_#t~malloc8.base| 0) |main_#t~malloc9.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc8.base|))))) is different from true [2018-03-28 12:30:12,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:30:12,789 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:30:12,846 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc9.base_16| Int)) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc9.base_16|))) (= (store (store (store |c_#valid| |v_main_#t~malloc9.base_16| 1) |c_main_#t~malloc8.base| 0) |v_main_#t~malloc9.base_16| 0) |c_old(#valid)|))) is different from false [2018-03-28 12:30:12,857 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc8.base_15| Int) (|v_main_#t~malloc9.base_16| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc8.base_15| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc9.base_16| 1) |v_main_#t~malloc8.base_15| 0) |v_main_#t~malloc9.base_16| 0) |c_old(#valid)|) (not (= (select .cse0 |v_main_#t~malloc9.base_16|) 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc8.base_15|)))))) is different from false [2018-03-28 12:30:12,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:30:12,918 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:30:12,918 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11, 6] imperfect sequences [] total 15 [2018-03-28 12:30:12,919 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-03-28 12:30:12,919 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-03-28 12:30:12,919 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=107, Unknown=4, NotChecked=92, Total=240 [2018-03-28 12:30:12,919 INFO L87 Difference]: Start difference. First operand 180 states and 198 transitions. Second operand 16 states. [2018-03-28 12:30:12,964 WARN L1011 $PredicateComparison]: unable to prove that (and (forall ((|v_main_#t~malloc8.base_15| Int) (|v_main_#t~malloc9.base_16| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc8.base_15| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc9.base_16| 1) |v_main_#t~malloc8.base_15| 0) |v_main_#t~malloc9.base_16| 0) |c_old(#valid)|) (not (= (select .cse0 |v_main_#t~malloc9.base_16|) 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc8.base_15|)))))) (= |c_#valid| |c_old(#valid)|)) is different from false [2018-03-28 12:30:13,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:30:13,447 INFO L93 Difference]: Finished difference Result 270 states and 296 transitions. [2018-03-28 12:30:13,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-03-28 12:30:13,447 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 53 [2018-03-28 12:30:13,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:30:13,448 INFO L225 Difference]: With dead ends: 270 [2018-03-28 12:30:13,449 INFO L226 Difference]: Without dead ends: 257 [2018-03-28 12:30:13,449 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 92 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=283, Unknown=6, NotChecked=190, Total=552 [2018-03-28 12:30:13,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2018-03-28 12:30:13,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 181. [2018-03-28 12:30:13,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2018-03-28 12:30:13,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 199 transitions. [2018-03-28 12:30:13,468 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 199 transitions. Word has length 53 [2018-03-28 12:30:13,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:30:13,468 INFO L459 AbstractCegarLoop]: Abstraction has 181 states and 199 transitions. [2018-03-28 12:30:13,468 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-03-28 12:30:13,468 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 199 transitions. [2018-03-28 12:30:13,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-03-28 12:30:13,469 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:30:13,469 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:30:13,469 INFO L408 AbstractCegarLoop]: === Iteration 13 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:30:13,469 INFO L82 PathProgramCache]: Analyzing trace with hash -255199913, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:30:13,476 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:30:13,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:30:13,498 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:30:13,555 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:30:13,556 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-03-28 12:30:13,558 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-03-28 12:30:13,558 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:30:13,563 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:30:13,567 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-03-28 12:30:13,567 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-03-28 12:30:13,641 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc8.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc8.base| 1))) (and (= 0 (select .cse0 |c_main_#t~malloc9.base|)) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc9.base| 1) |main_#t~malloc8.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc8.base|))))) is different from true [2018-03-28 12:30:13,644 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc8.base| Int) (|main_#t~malloc9.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc8.base| 1))) (and (= 0 (select .cse0 |main_#t~malloc9.base|)) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc9.base| 1) |main_#t~malloc8.base| 0) |main_#t~malloc9.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc8.base|))))) is different from true [2018-03-28 12:30:13,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:30:13,652 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:30:13,683 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc9.base_18| Int)) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc9.base_18|))) (= (store (store (store |c_#valid| |v_main_#t~malloc9.base_18| 1) |c_main_#t~malloc8.base| 0) |v_main_#t~malloc9.base_18| 0) |c_old(#valid)|))) is different from false [2018-03-28 12:30:13,689 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc9.base_18| Int) (|v_main_#t~malloc8.base_17| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc8.base_17| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc9.base_18| 1) |v_main_#t~malloc8.base_17| 0) |v_main_#t~malloc9.base_18| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc8.base_17|))) (not (= 0 (select .cse0 |v_main_#t~malloc9.base_18|)))))) is different from false [2018-03-28 12:30:13,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:30:13,742 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:30:13,743 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11, 6] imperfect sequences [] total 15 [2018-03-28 12:30:13,743 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-03-28 12:30:13,743 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-03-28 12:30:13,743 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=107, Unknown=4, NotChecked=92, Total=240 [2018-03-28 12:30:13,743 INFO L87 Difference]: Start difference. First operand 181 states and 199 transitions. Second operand 16 states. [2018-03-28 12:30:13,766 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc9.base_18| Int) (|v_main_#t~malloc8.base_17| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc8.base_17| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc9.base_18| 1) |v_main_#t~malloc8.base_17| 0) |v_main_#t~malloc9.base_18| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc8.base_17|))) (not (= 0 (select .cse0 |v_main_#t~malloc9.base_18|))))))) is different from false [2018-03-28 12:30:14,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:30:14,208 INFO L93 Difference]: Finished difference Result 270 states and 296 transitions. [2018-03-28 12:30:14,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-03-28 12:30:14,209 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 53 [2018-03-28 12:30:14,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:30:14,211 INFO L225 Difference]: With dead ends: 270 [2018-03-28 12:30:14,211 INFO L226 Difference]: Without dead ends: 257 [2018-03-28 12:30:14,211 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 92 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=283, Unknown=6, NotChecked=190, Total=552 [2018-03-28 12:30:14,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2018-03-28 12:30:14,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 181. [2018-03-28 12:30:14,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2018-03-28 12:30:14,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 199 transitions. [2018-03-28 12:30:14,237 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 199 transitions. Word has length 53 [2018-03-28 12:30:14,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:30:14,237 INFO L459 AbstractCegarLoop]: Abstraction has 181 states and 199 transitions. [2018-03-28 12:30:14,237 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-03-28 12:30:14,238 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 199 transitions. [2018-03-28 12:30:14,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-03-28 12:30:14,239 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:30:14,239 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:30:14,239 INFO L408 AbstractCegarLoop]: === Iteration 14 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:30:14,239 INFO L82 PathProgramCache]: Analyzing trace with hash -1150338933, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:30:14,245 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:30:14,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:30:14,271 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:30:14,348 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:30:14,349 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-03-28 12:30:14,353 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-03-28 12:30:14,353 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:30:14,357 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:30:14,362 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-03-28 12:30:14,363 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-03-28 12:30:14,463 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc8.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc8.base| 1))) (and (= 0 (select .cse0 |c_main_#t~malloc9.base|)) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc9.base| 1) |main_#t~malloc8.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc8.base|))))) is different from true [2018-03-28 12:30:14,468 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc8.base| Int) (|main_#t~malloc9.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc8.base| 1))) (and (= 0 (select .cse0 |main_#t~malloc9.base|)) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc9.base| 1) |main_#t~malloc8.base| 0) |main_#t~malloc9.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc8.base|))))) is different from true [2018-03-28 12:30:14,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:30:14,475 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:30:14,505 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc9.base_20| Int)) (or (= (store (store (store |c_#valid| |v_main_#t~malloc9.base_20| 1) |c_main_#t~malloc8.base| 0) |v_main_#t~malloc9.base_20| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc9.base_20|))))) is different from false [2018-03-28 12:30:14,509 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc8.base_19| Int) (|v_main_#t~malloc9.base_20| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc8.base_19| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc9.base_20| 1) |v_main_#t~malloc8.base_19| 0) |v_main_#t~malloc9.base_20| 0) |c_old(#valid)|) (not (= (select .cse0 |v_main_#t~malloc9.base_20|) 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc8.base_19|)))))) is different from false [2018-03-28 12:30:14,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:30:14,544 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:30:14,544 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11, 6] imperfect sequences [] total 15 [2018-03-28 12:30:14,544 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-03-28 12:30:14,545 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-03-28 12:30:14,545 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=107, Unknown=4, NotChecked=92, Total=240 [2018-03-28 12:30:14,545 INFO L87 Difference]: Start difference. First operand 181 states and 199 transitions. Second operand 16 states. [2018-03-28 12:30:14,555 WARN L1011 $PredicateComparison]: unable to prove that (and (forall ((|v_main_#t~malloc8.base_19| Int) (|v_main_#t~malloc9.base_20| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc8.base_19| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc9.base_20| 1) |v_main_#t~malloc8.base_19| 0) |v_main_#t~malloc9.base_20| 0) |c_old(#valid)|) (not (= (select .cse0 |v_main_#t~malloc9.base_20|) 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc8.base_19|)))))) (= |c_#valid| |c_old(#valid)|)) is different from false [2018-03-28 12:30:14,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:30:14,939 INFO L93 Difference]: Finished difference Result 183 states and 199 transitions. [2018-03-28 12:30:14,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-03-28 12:30:14,939 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 54 [2018-03-28 12:30:14,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:30:14,940 INFO L225 Difference]: With dead ends: 183 [2018-03-28 12:30:14,940 INFO L226 Difference]: Without dead ends: 170 [2018-03-28 12:30:14,941 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 94 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=283, Unknown=6, NotChecked=190, Total=552 [2018-03-28 12:30:14,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2018-03-28 12:30:14,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 92. [2018-03-28 12:30:14,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2018-03-28 12:30:14,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 99 transitions. [2018-03-28 12:30:14,953 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 99 transitions. Word has length 54 [2018-03-28 12:30:14,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:30:14,953 INFO L459 AbstractCegarLoop]: Abstraction has 92 states and 99 transitions. [2018-03-28 12:30:14,953 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-03-28 12:30:14,953 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 99 transitions. [2018-03-28 12:30:14,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-03-28 12:30:14,954 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:30:14,954 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:30:14,954 INFO L408 AbstractCegarLoop]: === Iteration 15 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:30:14,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1513716263, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:30:14,960 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:30:14,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:30:14,981 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:30:14,984 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 12:30:14,984 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:30:14,988 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:30:14,988 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-28 12:30:14,997 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-03-28 12:30:14,999 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-03-28 12:30:15,000 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:30:15,001 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:30:15,005 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:30:15,005 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:11 [2018-03-28 12:30:15,099 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2018-03-28 12:30:15,105 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 14 [2018-03-28 12:30:15,105 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-03-28 12:30:15,108 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:30:15,113 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:30:15,113 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:32 [2018-03-28 12:30:15,190 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:30:15,190 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:30:15,607 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2018-03-28 12:30:15,620 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2018-03-28 12:30:15,620 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:30:15,621 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:30:15,627 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:30:15,627 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:33, output treesize:35 [2018-03-28 12:30:15,718 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:30:15,739 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:30:15,739 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 31 [2018-03-28 12:30:15,739 INFO L442 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-03-28 12:30:15,739 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-03-28 12:30:15,740 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=890, Unknown=0, NotChecked=0, Total=992 [2018-03-28 12:30:15,740 INFO L87 Difference]: Start difference. First operand 92 states and 99 transitions. Second operand 32 states. [2018-03-28 12:30:16,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:30:16,755 INFO L93 Difference]: Finished difference Result 109 states and 116 transitions. [2018-03-28 12:30:16,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-03-28 12:30:16,755 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 56 [2018-03-28 12:30:16,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:30:16,756 INFO L225 Difference]: With dead ends: 109 [2018-03-28 12:30:16,756 INFO L226 Difference]: Without dead ends: 108 [2018-03-28 12:30:16,757 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=524, Invalid=2026, Unknown=0, NotChecked=0, Total=2550 [2018-03-28 12:30:16,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2018-03-28 12:30:16,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 65. [2018-03-28 12:30:16,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-03-28 12:30:16,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 69 transitions. [2018-03-28 12:30:16,767 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 69 transitions. Word has length 56 [2018-03-28 12:30:16,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:30:16,767 INFO L459 AbstractCegarLoop]: Abstraction has 65 states and 69 transitions. [2018-03-28 12:30:16,767 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-03-28 12:30:16,767 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 69 transitions. [2018-03-28 12:30:16,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-03-28 12:30:16,768 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:30:16,768 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:30:16,768 INFO L408 AbstractCegarLoop]: === Iteration 16 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:30:16,768 INFO L82 PathProgramCache]: Analyzing trace with hash 381585505, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:30:16,775 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:30:16,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:30:16,801 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:30:16,805 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 12:30:16,805 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:30:16,825 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 12:30:16,825 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:30:16,829 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:30:16,829 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-03-28 12:30:16,844 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:30:16,846 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-03-28 12:30:16,846 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:30:16,855 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:30:16,856 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:30:16,856 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-03-28 12:30:16,857 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:30:16,861 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:30:16,861 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2018-03-28 12:30:16,891 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-03-28 12:30:16,892 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-03-28 12:30:16,892 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:30:16,894 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:30:16,898 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:30:16,898 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:25, output treesize:21 [2018-03-28 12:30:16,916 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 29 [2018-03-28 12:30:16,918 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-03-28 12:30:16,918 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:30:16,931 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:30:16,935 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-28 12:30:16,935 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:28 [2018-03-28 12:30:17,491 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 42 [2018-03-28 12:30:17,497 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 14 [2018-03-28 12:30:17,497 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-03-28 12:30:17,506 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-03-28 12:30:17,507 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-03-28 12:30:17,512 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:30:17,526 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:30:17,527 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:60, output treesize:40 [2018-03-28 12:30:17,678 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:30:17,678 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:30:19,138 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2018-03-28 12:30:19,167 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 15 [2018-03-28 12:30:19,167 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:30:19,174 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:30:19,182 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-03-28 12:30:19,182 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:65, output treesize:74 [2018-03-28 12:30:19,674 WARN L148 SmtUtils]: Spent 341ms on a formula simplification that was a NOOP. DAG size: 34 [2018-03-28 12:30:20,091 WARN L148 SmtUtils]: Spent 345ms on a formula simplification that was a NOOP. DAG size: 34 [2018-03-28 12:30:20,113 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:30:20,136 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:30:20,136 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 27] total 55 [2018-03-28 12:30:20,136 INFO L442 AbstractCegarLoop]: Interpolant automaton has 56 states [2018-03-28 12:30:20,137 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2018-03-28 12:30:20,137 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=2841, Unknown=0, NotChecked=0, Total=3080 [2018-03-28 12:30:20,137 INFO L87 Difference]: Start difference. First operand 65 states and 69 transitions. Second operand 56 states. [2018-03-28 12:30:25,816 WARN L151 SmtUtils]: Spent 2735ms on a formula simplification. DAG size of input: 100 DAG size of output 70 [2018-03-28 12:30:29,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:30:29,204 INFO L93 Difference]: Finished difference Result 114 states and 121 transitions. [2018-03-28 12:30:29,204 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2018-03-28 12:30:29,204 INFO L78 Accepts]: Start accepts. Automaton has 56 states. Word has length 62 [2018-03-28 12:30:29,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:30:29,205 INFO L225 Difference]: With dead ends: 114 [2018-03-28 12:30:29,205 INFO L226 Difference]: Without dead ends: 0 [2018-03-28 12:30:29,208 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 65 SyntacticMatches, 4 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2267 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=2070, Invalid=10586, Unknown=0, NotChecked=0, Total=12656 [2018-03-28 12:30:29,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-03-28 12:30:29,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-03-28 12:30:29,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-03-28 12:30:29,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-03-28 12:30:29,209 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62 [2018-03-28 12:30:29,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:30:29,209 INFO L459 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-03-28 12:30:29,209 INFO L460 AbstractCegarLoop]: Interpolant automaton has 56 states. [2018-03-28 12:30:29,209 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-03-28 12:30:29,209 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-03-28 12:30:29,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-03-28 12:30:29,472 WARN L151 SmtUtils]: Spent 161ms on a formula simplification. DAG size of input: 261 DAG size of output 248 [2018-03-28 12:30:29,742 WARN L151 SmtUtils]: Spent 269ms on a formula simplification. DAG size of input: 298 DAG size of output 288 [2018-03-28 12:30:30,740 WARN L151 SmtUtils]: Spent 983ms on a formula simplification. DAG size of input: 152 DAG size of output 1 [2018-03-28 12:31:01,955 WARN L151 SmtUtils]: Spent 31192ms on a formula simplification. DAG size of input: 277 DAG size of output 137 Received shutdown request... [2018-03-28 12:32:40,196 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-03-28 12:32:40,197 INFO L168 Benchmark]: Toolchain (without parser) took 157079.23 ms. Allocated memory was 301.5 MB in the beginning and 661.1 MB in the end (delta: 359.7 MB). Free memory was 239.5 MB in the beginning and 577.4 MB in the end (delta: -337.9 MB). Peak memory consumption was 317.4 MB. Max. memory is 5.3 GB. [2018-03-28 12:32:40,198 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 301.5 MB. Free memory is still 263.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-03-28 12:32:40,198 INFO L168 Benchmark]: CACSL2BoogieTranslator took 336.91 ms. Allocated memory is still 301.5 MB. Free memory was 239.5 MB in the beginning and 215.3 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 5.3 GB. [2018-03-28 12:32:40,199 INFO L168 Benchmark]: Boogie Preprocessor took 60.47 ms. Allocated memory is still 301.5 MB. Free memory was 215.3 MB in the beginning and 213.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-03-28 12:32:40,199 INFO L168 Benchmark]: RCFGBuilder took 480.39 ms. Allocated memory was 301.5 MB in the beginning and 460.8 MB in the end (delta: 159.4 MB). Free memory was 213.3 MB in the beginning and 396.1 MB in the end (delta: -182.8 MB). Peak memory consumption was 21.9 MB. Max. memory is 5.3 GB. [2018-03-28 12:32:40,199 INFO L168 Benchmark]: TraceAbstraction took 156195.20 ms. Allocated memory was 460.8 MB in the beginning and 661.1 MB in the end (delta: 200.3 MB). Free memory was 396.1 MB in the beginning and 577.4 MB in the end (delta: -181.3 MB). Peak memory consumption was 314.6 MB. Max. memory is 5.3 GB. [2018-03-28 12:32:40,201 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 301.5 MB. Free memory is still 263.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 336.91 ms. Allocated memory is still 301.5 MB. Free memory was 239.5 MB in the beginning and 215.3 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 60.47 ms. Allocated memory is still 301.5 MB. Free memory was 215.3 MB in the beginning and 213.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 480.39 ms. Allocated memory was 301.5 MB in the beginning and 460.8 MB in the end (delta: 159.4 MB). Free memory was 213.3 MB in the beginning and 396.1 MB in the end (delta: -182.8 MB). Peak memory consumption was 21.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 156195.20 ms. Allocated memory was 460.8 MB in the beginning and 661.1 MB in the end (delta: 200.3 MB). Free memory was 396.1 MB in the beginning and 577.4 MB in the end (delta: -181.3 MB). Peak memory consumption was 314.6 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 564]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 563]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 564]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 552]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 563]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while SimplifyDDAWithTimeout was simplifying term of DAG size 313. RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-03-28_12-32-40-209.csv Completed graceful shutdown