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 0.1.23-835382a-m [2018-04-05 16:27:15,316 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-05 16:27:15,318 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-05 16:27:15,345 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-05 16:27:15,346 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-05 16:27:15,347 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-05 16:27:15,348 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-05 16:27:15,351 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-05 16:27:15,353 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-05 16:27:15,354 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-05 16:27:15,356 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-05 16:27:15,356 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-05 16:27:15,357 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-05 16:27:15,359 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-05 16:27:15,360 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-05 16:27:15,363 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-05 16:27:15,372 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-05 16:27:15,386 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-05 16:27:15,387 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-05 16:27:15,389 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-05 16:27:15,402 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-05 16:27:15,402 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-05 16:27:15,403 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-05 16:27:15,404 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-05 16:27:15,405 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-05 16:27:15,415 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-05 16:27:15,416 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-05 16:27:15,417 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-05 16:27:15,417 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-05 16:27:15,418 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-05 16:27:15,419 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-05 16:27:15,427 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 [2018-04-05 16:27:15,522 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-05 16:27:15,523 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-05 16:27:15,523 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-04-05 16:27:15,523 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-04-05 16:27:15,538 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-04-05 16:27:15,543 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-04-05 16:27:15,544 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-04-05 16:27:15,544 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-04-05 16:27:15,544 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-04-05 16:27:15,549 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-04-05 16:27:15,549 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-04-05 16:27:15,549 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-05 16:27:15,550 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-05 16:27:15,550 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-05 16:27:15,550 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-05 16:27:15,550 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-05 16:27:15,550 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-05 16:27:15,551 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-05 16:27:15,551 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-04-05 16:27:15,551 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-05 16:27:15,552 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-05 16:27:15,552 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-05 16:27:15,552 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-04-05 16:27:15,553 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-04-05 16:27:15,553 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-05 16:27:15,553 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-05 16:27:15,553 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-05 16:27:15,553 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-05 16:27:15,554 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-05 16:27:15,554 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-04-05 16:27:15,554 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-04-05 16:27:15,554 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:27:15,554 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-04-05 16:27:15,556 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-04-05 16:27:15,567 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-04-05 16:27:15,567 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-04-05 16:27:15,568 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-04-05 16:27:15,670 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-05 16:27:15,727 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-05 16:27:15,741 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-05 16:27:15,743 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-05 16:27:15,752 INFO L276 PluginConnector]: CDTParser initialized [2018-04-05 16:27:15,753 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 [2018-04-05 16:27:16,383 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG6327bfc0c [2018-04-05 16:27:16,975 INFO L287 CDTParser]: IsIndexed: true [2018-04-05 16:27:16,975 INFO L288 CDTParser]: Found 1 translation units. [2018-04-05 16:27:16,976 INFO L168 CDTParser]: Scanning openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:27:17,019 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-05 16:27:17,020 INFO L215 ultiparseSymbolTable]: [2018-04-05 16:27:17,020 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-05 16:27:17,020 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 [2018-04-05 16:27:17,020 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:27:17,020 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 [2018-04-05 16:27:17,021 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 [2018-04-05 16:27:17,021 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-05 16:27:17,021 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 [2018-04-05 16:27:17,021 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 [2018-04-05 16:27:17,021 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 [2018-04-05 16:27:17,021 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 [2018-04-05 16:27:17,021 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 [2018-04-05 16:27:17,022 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 [2018-04-05 16:27:17,022 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 [2018-04-05 16:27:17,022 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 [2018-04-05 16:27:17,022 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 [2018-04-05 16:27:17,022 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 [2018-04-05 16:27:17,022 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 [2018-04-05 16:27:17,023 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 [2018-04-05 16:27:17,026 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 [2018-04-05 16:27:17,026 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 [2018-04-05 16:27:17,026 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 [2018-04-05 16:27:17,026 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 [2018-04-05 16:27:17,026 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 [2018-04-05 16:27:17,026 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 [2018-04-05 16:27:17,026 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 [2018-04-05 16:27:17,027 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 [2018-04-05 16:27:17,034 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 [2018-04-05 16:27:17,034 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 [2018-04-05 16:27:17,034 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 [2018-04-05 16:27:17,034 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 [2018-04-05 16:27:17,034 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 [2018-04-05 16:27:17,034 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 [2018-04-05 16:27:17,035 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 [2018-04-05 16:27:17,035 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 [2018-04-05 16:27:17,035 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 [2018-04-05 16:27:17,035 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 [2018-04-05 16:27:17,035 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 [2018-04-05 16:27:17,035 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 [2018-04-05 16:27:17,035 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 [2018-04-05 16:27:17,035 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 [2018-04-05 16:27:17,035 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 [2018-04-05 16:27:17,036 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 [2018-04-05 16:27:17,036 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 [2018-04-05 16:27:17,036 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 [2018-04-05 16:27:17,036 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 [2018-04-05 16:27:17,036 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 [2018-04-05 16:27:17,036 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 [2018-04-05 16:27:17,036 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 [2018-04-05 16:27:17,036 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 [2018-04-05 16:27:17,036 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 [2018-04-05 16:27:17,037 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 [2018-04-05 16:27:17,037 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 [2018-04-05 16:27:17,037 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 [2018-04-05 16:27:17,037 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 [2018-04-05 16:27:17,037 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 [2018-04-05 16:27:17,037 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 [2018-04-05 16:27:17,037 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 [2018-04-05 16:27:17,037 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 [2018-04-05 16:27:17,037 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 [2018-04-05 16:27:17,038 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 [2018-04-05 16:27:17,038 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 [2018-04-05 16:27:17,050 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 [2018-04-05 16:27:17,050 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 [2018-04-05 16:27:17,050 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 [2018-04-05 16:27:17,050 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 [2018-04-05 16:27:17,050 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 [2018-04-05 16:27:17,051 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 [2018-04-05 16:27:17,051 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 [2018-04-05 16:27:17,051 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 [2018-04-05 16:27:17,051 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 [2018-04-05 16:27:17,051 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 [2018-04-05 16:27:17,051 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 [2018-04-05 16:27:17,051 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 [2018-04-05 16:27:17,051 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 [2018-04-05 16:27:17,051 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 [2018-04-05 16:27:17,052 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 [2018-04-05 16:27:17,052 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 [2018-04-05 16:27:17,052 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 [2018-04-05 16:27:17,052 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 [2018-04-05 16:27:17,052 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 [2018-04-05 16:27:17,052 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 [2018-04-05 16:27:17,052 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 [2018-04-05 16:27:17,052 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 [2018-04-05 16:27:17,052 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 [2018-04-05 16:27:17,052 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 [2018-04-05 16:27:17,053 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 [2018-04-05 16:27:17,053 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 [2018-04-05 16:27:17,053 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 [2018-04-05 16:27:17,053 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 [2018-04-05 16:27:17,053 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 [2018-04-05 16:27:17,053 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 [2018-04-05 16:27:17,053 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 [2018-04-05 16:27:17,053 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 [2018-04-05 16:27:17,053 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 [2018-04-05 16:27:17,053 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 [2018-04-05 16:27:17,054 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 [2018-04-05 16:27:17,061 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 [2018-04-05 16:27:17,061 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 [2018-04-05 16:27:17,061 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 [2018-04-05 16:27:17,061 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 [2018-04-05 16:27:17,061 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 [2018-04-05 16:27:17,061 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 [2018-04-05 16:27:17,061 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 [2018-04-05 16:27:17,062 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 [2018-04-05 16:27:17,062 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 [2018-04-05 16:27:17,062 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 [2018-04-05 16:27:17,062 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 [2018-04-05 16:27:17,062 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 [2018-04-05 16:27:17,062 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 [2018-04-05 16:27:17,062 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 [2018-04-05 16:27:17,062 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 [2018-04-05 16:27:17,062 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 [2018-04-05 16:27:17,063 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 [2018-04-05 16:27:17,063 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 [2018-04-05 16:27:17,063 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 [2018-04-05 16:27:17,063 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 [2018-04-05 16:27:17,063 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 [2018-04-05 16:27:17,063 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 [2018-04-05 16:27:17,063 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 [2018-04-05 16:27:17,063 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 [2018-04-05 16:27:17,063 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 [2018-04-05 16:27:17,063 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 [2018-04-05 16:27:17,064 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 [2018-04-05 16:27:17,064 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 [2018-04-05 16:27:17,064 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 [2018-04-05 16:27:17,064 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 [2018-04-05 16:27:17,139 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG6327bfc0c [2018-04-05 16:27:17,158 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-05 16:27:17,166 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-05 16:27:17,168 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-05 16:27:17,168 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-05 16:27:17,186 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-05 16:27:17,187 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 04:27:17" (1/1) ... [2018-04-05 16:27:17,199 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c9f4bba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:27:17, skipping insertion in model container [2018-04-05 16:27:17,200 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 04:27:17" (1/1) ... [2018-04-05 16:27:17,246 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-05 16:27:17,344 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-05 16:27:17,812 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-05 16:27:17,928 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-05 16:27:17,955 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 112 non ball SCCs. Number of states in SCCs 112. [2018-04-05 16:27:18,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:27:18 WrapperNode [2018-04-05 16:27:18,064 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-05 16:27:18,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-05 16:27:18,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-05 16:27:18,065 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-05 16:27:18,094 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:27:18" (1/1) ... [2018-04-05 16:27:18,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:27:18" (1/1) ... [2018-04-05 16:27:18,126 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:27:18" (1/1) ... [2018-04-05 16:27:18,127 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:27:18" (1/1) ... [2018-04-05 16:27:18,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:27:18" (1/1) ... [2018-04-05 16:27:18,199 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:27:18" (1/1) ... [2018-04-05 16:27:18,202 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:27:18" (1/1) ... [2018-04-05 16:27:18,216 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-05 16:27:18,221 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-05 16:27:18,221 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-05 16:27:18,221 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-05 16:27:18,223 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:27:18" (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 [2018-04-05 16:27:18,561 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-05 16:27:18,562 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-05 16:27:18,562 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-05 16:27:18,562 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-05 16:27:18,562 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspn [2018-04-05 16:27:18,562 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-05 16:27:18,563 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-05 16:27:18,570 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-05 16:27:18,570 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-05 16:27:18,570 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-05 16:27:18,570 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-05 16:27:18,570 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-05 16:27:18,571 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-05 16:27:18,571 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-05 16:27:18,571 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-05 16:27:18,571 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-05 16:27:18,571 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-05 16:27:18,571 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-05 16:27:18,571 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-05 16:27:18,572 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-05 16:27:18,572 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-05 16:27:18,572 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-05 16:27:18,572 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-05 16:27:18,572 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-05 16:27:18,572 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-05 16:27:18,573 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-05 16:27:18,573 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-05 16:27:18,573 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-05 16:27:18,573 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-05 16:27:18,573 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-05 16:27:18,573 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-05 16:27:18,573 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-05 16:27:18,574 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-05 16:27:18,593 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-05 16:27:18,593 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-05 16:27:18,593 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-05 16:27:18,593 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-05 16:27:18,593 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-05 16:27:18,594 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-05 16:27:18,594 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-05 16:27:18,594 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-05 16:27:18,594 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-05 16:27:18,594 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-05 16:27:18,594 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-05 16:27:18,594 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-05 16:27:18,594 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-05 16:27:18,595 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-05 16:27:18,595 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-05 16:27:18,595 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-05 16:27:18,595 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-05 16:27:18,595 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-05 16:27:18,595 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-05 16:27:18,595 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-05 16:27:18,596 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-05 16:27:18,596 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-05 16:27:18,596 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-05 16:27:18,596 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-05 16:27:18,596 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-05 16:27:18,596 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-05 16:27:18,596 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-05 16:27:18,596 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-05 16:27:18,597 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-05 16:27:18,599 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-05 16:27:18,599 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-05 16:27:18,599 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-05 16:27:18,599 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-05 16:27:18,604 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-05 16:27:18,604 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-05 16:27:18,604 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-05 16:27:18,604 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-05 16:27:18,604 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-05 16:27:18,605 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-05 16:27:18,605 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-05 16:27:18,605 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-05 16:27:18,605 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-05 16:27:18,605 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-05 16:27:18,605 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-05 16:27:18,605 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-05 16:27:18,605 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-05 16:27:18,606 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-05 16:27:18,606 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-05 16:27:18,606 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-05 16:27:18,606 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-05 16:27:18,606 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-05 16:27:18,606 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-05 16:27:18,606 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-05 16:27:18,606 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-05 16:27:18,607 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-05 16:27:18,607 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-05 16:27:18,607 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-05 16:27:18,607 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-05 16:27:18,607 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-05 16:27:18,607 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-05 16:27:18,607 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-05 16:27:18,608 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-05 16:27:18,610 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-05 16:27:18,610 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-05 16:27:18,611 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-05 16:27:18,611 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-05 16:27:18,611 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-05 16:27:18,617 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-05 16:27:18,617 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-05 16:27:18,617 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-05 16:27:18,617 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-05 16:27:18,617 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-05 16:27:18,618 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-05 16:27:18,618 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-05 16:27:18,618 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-05 16:27:18,618 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-05 16:27:18,618 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspn [2018-04-05 16:27:18,618 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-05 16:27:18,618 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-05 16:27:18,619 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-05 16:27:18,619 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-05 16:27:18,619 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-05 16:27:18,619 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-05 16:27:18,619 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-05 16:27:18,619 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-05 16:27:19,725 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-05 16:27:19,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:27:19 BoogieIcfgContainer [2018-04-05 16:27:19,726 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-05 16:27:19,736 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-05 16:27:19,736 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-05 16:27:19,740 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-05 16:27:19,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.04 04:27:17" (1/3) ... [2018-04-05 16:27:19,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1016973b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 04:27:19, skipping insertion in model container [2018-04-05 16:27:19,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:27:18" (2/3) ... [2018-04-05 16:27:19,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1016973b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 04:27:19, skipping insertion in model container [2018-04-05 16:27:19,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:27:19" (3/3) ... [2018-04-05 16:27:19,748 INFO L107 eAbstractionObserver]: Analyzing ICFG openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:27:19,770 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-05 16:27:19,794 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-04-05 16:27:19,928 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-05 16:27:19,929 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-05 16:27:19,929 INFO L370 AbstractCegarLoop]: Hoare is true [2018-04-05 16:27:19,929 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-05 16:27:19,929 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-05 16:27:19,929 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-05 16:27:19,929 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-05 16:27:19,929 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-05 16:27:19,930 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-05 16:27:19,930 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-05 16:27:19,970 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states. [2018-04-05 16:27:19,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-04-05 16:27:19,984 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:27:19,986 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:27:19,986 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]=== [2018-04-05 16:27:19,993 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 [2018-04-05 16:27:20,031 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:27:20,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:27:20,160 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:27:20,278 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 [2018-04-05 16:27:20,285 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:27:20,309 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:27:20,310 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-05 16:27:20,391 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 [2018-04-05 16:27:20,392 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:27:20,455 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. [2018-04-05 16:27:20,456 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2018-04-05 16:27:20,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:27:20,538 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:27:20,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:27:20,683 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:27:20,685 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-05 16:27:20,688 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-05 16:27:20,712 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-05 16:27:20,716 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-05 16:27:20,719 INFO L87 Difference]: Start difference. First operand 69 states. Second operand 4 states. [2018-04-05 16:27:21,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:27:21,093 INFO L93 Difference]: Finished difference Result 83 states and 86 transitions. [2018-04-05 16:27:21,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-05 16:27:21,096 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2018-04-05 16:27:21,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:27:21,121 INFO L225 Difference]: With dead ends: 83 [2018-04-05 16:27:21,121 INFO L226 Difference]: Without dead ends: 65 [2018-04-05 16:27:21,140 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-05 16:27:21,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-04-05 16:27:21,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-04-05 16:27:21,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-04-05 16:27:21,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 68 transitions. [2018-04-05 16:27:21,229 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 68 transitions. Word has length 19 [2018-04-05 16:27:21,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:27:21,229 INFO L459 AbstractCegarLoop]: Abstraction has 65 states and 68 transitions. [2018-04-05 16:27:21,229 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-05 16:27:21,230 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 68 transitions. [2018-04-05 16:27:21,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-04-05 16:27:21,231 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:27:21,231 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:27:21,232 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]=== [2018-04-05 16:27:21,233 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 [2018-04-05 16:27:21,245 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:27:21,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:27:21,289 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:27:21,330 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 [2018-04-05 16:27:21,330 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:27:21,396 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 [2018-04-05 16:27:21,396 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:27:21,444 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:27:21,444 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:19, output treesize:17 [2018-04-05 16:27:21,678 WARN L148 SmtUtils]: Spent 128ms on a formula simplification that was a NOOP. DAG size: 14 [2018-04-05 16:27:21,734 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:27:21,760 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 [2018-04-05 16:27:21,761 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:27:21,972 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:27:21,997 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:27:21,999 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 [2018-04-05 16:27:21,999 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:27:22,156 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:27:22,156 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:28, output treesize:12 [2018-04-05 16:27:22,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:27:22,249 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:27:22,674 WARN L148 SmtUtils]: Spent 117ms on a formula simplification that was a NOOP. DAG size: 26 [2018-04-05 16:27:24,796 WARN L148 SmtUtils]: Spent 2060ms on a formula simplification that was a NOOP. DAG size: 26 [2018-04-05 16:27:24,867 INFO L267 ElimStorePlain]: Start of recursive call 1: End of recursive call: and 1 xjuncts. [2018-04-05 16:27:24,867 INFO L202 ElimStorePlain]: Needed 1 recursive calls to eliminate 5 variables, input treesize:25, output treesize:3 [2018-04-05 16:27:24,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:27:24,957 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:27:24,957 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2018-04-05 16:27:24,959 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-05 16:27:24,959 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-05 16:27:24,960 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-04-05 16:27:24,960 INFO L87 Difference]: Start difference. First operand 65 states and 68 transitions. Second operand 9 states. [2018-04-05 16:27:25,342 WARN L148 SmtUtils]: Spent 188ms on a formula simplification that was a NOOP. DAG size: 21 [2018-04-05 16:27:26,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:27:26,225 INFO L93 Difference]: Finished difference Result 65 states and 68 transitions. [2018-04-05 16:27:26,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-05 16:27:26,268 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-04-05 16:27:26,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:27:26,270 INFO L225 Difference]: With dead ends: 65 [2018-04-05 16:27:26,270 INFO L226 Difference]: Without dead ends: 64 [2018-04-05 16:27:26,271 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-04-05 16:27:26,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-04-05 16:27:26,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-04-05 16:27:26,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-04-05 16:27:26,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 67 transitions. [2018-04-05 16:27:26,304 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 67 transitions. Word has length 19 [2018-04-05 16:27:26,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:27:26,305 INFO L459 AbstractCegarLoop]: Abstraction has 64 states and 67 transitions. [2018-04-05 16:27:26,305 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-05 16:27:26,305 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 67 transitions. [2018-04-05 16:27:26,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-04-05 16:27:26,309 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:27:26,309 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] [2018-04-05 16:27:26,309 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]=== [2018-04-05 16:27:26,309 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 [2018-04-05 16:27:26,344 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:27:26,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:27:26,383 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:27:26,405 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 [2018-04-05 16:27:26,405 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:27:26,412 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:27:26,413 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-05 16:27:26,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:27:26,540 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:27:26,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:27:26,645 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:27:26,645 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-05 16:27:26,646 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-05 16:27:26,646 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-05 16:27:26,646 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-05 16:27:26,646 INFO L87 Difference]: Start difference. First operand 64 states and 67 transitions. Second operand 4 states. [2018-04-05 16:27:26,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:27:26,916 INFO L93 Difference]: Finished difference Result 64 states and 67 transitions. [2018-04-05 16:27:26,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-05 16:27:26,919 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-04-05 16:27:26,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:27:26,920 INFO L225 Difference]: With dead ends: 64 [2018-04-05 16:27:26,920 INFO L226 Difference]: Without dead ends: 63 [2018-04-05 16:27:26,921 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-05 16:27:26,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-04-05 16:27:26,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-04-05 16:27:26,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-04-05 16:27:26,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 66 transitions. [2018-04-05 16:27:26,934 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 66 transitions. Word has length 20 [2018-04-05 16:27:26,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:27:26,934 INFO L459 AbstractCegarLoop]: Abstraction has 63 states and 66 transitions. [2018-04-05 16:27:26,934 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-05 16:27:26,935 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 66 transitions. [2018-04-05 16:27:26,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-04-05 16:27:26,942 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:27:26,942 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] [2018-04-05 16:27:26,943 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]=== [2018-04-05 16:27:26,943 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 [2018-04-05 16:27:26,969 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:27:27,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:27:27,009 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:27:27,060 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 [2018-04-05 16:27:27,060 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:27:27,093 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:27:27,094 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-04-05 16:27:27,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:27:27,241 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:27:27,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:27:27,513 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:27:27,513 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2018-04-05 16:27:27,514 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-05 16:27:27,514 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-05 16:27:27,514 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-04-05 16:27:27,514 INFO L87 Difference]: Start difference. First operand 63 states and 66 transitions. Second operand 7 states. [2018-04-05 16:27:27,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:27:27,931 INFO L93 Difference]: Finished difference Result 63 states and 66 transitions. [2018-04-05 16:27:27,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-05 16:27:27,932 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-04-05 16:27:27,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:27:27,933 INFO L225 Difference]: With dead ends: 63 [2018-04-05 16:27:27,934 INFO L226 Difference]: Without dead ends: 62 [2018-04-05 16:27:27,934 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-04-05 16:27:27,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-04-05 16:27:27,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2018-04-05 16:27:27,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-04-05 16:27:27,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 65 transitions. [2018-04-05 16:27:27,959 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 65 transitions. Word has length 20 [2018-04-05 16:27:27,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:27:27,962 INFO L459 AbstractCegarLoop]: Abstraction has 62 states and 65 transitions. [2018-04-05 16:27:27,963 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-05 16:27:27,963 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 65 transitions. [2018-04-05 16:27:27,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-04-05 16:27:27,969 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:27:27,969 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] [2018-04-05 16:27:27,969 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]=== [2018-04-05 16:27:27,969 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 [2018-04-05 16:27:27,993 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:27:28,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:27:28,076 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:27:28,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:27:28,468 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:27:28,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:27:28,565 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:27:28,565 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2018-04-05 16:27:28,565 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-05 16:27:28,566 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-05 16:27:28,566 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-05 16:27:28,566 INFO L87 Difference]: Start difference. First operand 62 states and 65 transitions. Second operand 7 states. [2018-04-05 16:27:29,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:27:29,249 INFO L93 Difference]: Finished difference Result 62 states and 65 transitions. [2018-04-05 16:27:29,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-05 16:27:29,250 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2018-04-05 16:27:29,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:27:29,251 INFO L225 Difference]: With dead ends: 62 [2018-04-05 16:27:29,251 INFO L226 Difference]: Without dead ends: 61 [2018-04-05 16:27:29,252 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-04-05 16:27:29,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-04-05 16:27:29,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2018-04-05 16:27:29,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-04-05 16:27:29,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 64 transitions. [2018-04-05 16:27:29,273 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 64 transitions. Word has length 30 [2018-04-05 16:27:29,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:27:29,273 INFO L459 AbstractCegarLoop]: Abstraction has 61 states and 64 transitions. [2018-04-05 16:27:29,273 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-05 16:27:29,274 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 64 transitions. [2018-04-05 16:27:29,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-04-05 16:27:29,275 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:27:29,275 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] [2018-04-05 16:27:29,275 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]=== [2018-04-05 16:27:29,275 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 [2018-04-05 16:27:29,303 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:27:29,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:27:29,337 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:27:29,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:27:29,830 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:27:29,860 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 [2018-04-05 16:27:29,861 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:27:29,905 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 [2018-04-05 16:27:29,905 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:27:29,927 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:27:29,928 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2018-04-05 16:27:29,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:27:30,082 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:27:30,082 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2018-04-05 16:27:30,083 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-05 16:27:30,083 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-05 16:27:30,083 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-04-05 16:27:30,083 INFO L87 Difference]: Start difference. First operand 61 states and 64 transitions. Second operand 10 states. [2018-04-05 16:27:30,801 WARN L148 SmtUtils]: Spent 116ms on a formula simplification that was a NOOP. DAG size: 28 [2018-04-05 16:27:31,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:27:31,302 INFO L93 Difference]: Finished difference Result 65 states and 68 transitions. [2018-04-05 16:27:31,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-05 16:27:31,302 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 30 [2018-04-05 16:27:31,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:27:31,303 INFO L225 Difference]: With dead ends: 65 [2018-04-05 16:27:31,304 INFO L226 Difference]: Without dead ends: 64 [2018-04-05 16:27:31,304 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 49 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2018-04-05 16:27:31,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-04-05 16:27:31,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-04-05 16:27:31,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-04-05 16:27:31,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 67 transitions. [2018-04-05 16:27:31,324 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 67 transitions. Word has length 30 [2018-04-05 16:27:31,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:27:31,324 INFO L459 AbstractCegarLoop]: Abstraction has 64 states and 67 transitions. [2018-04-05 16:27:31,324 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-05 16:27:31,324 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 67 transitions. [2018-04-05 16:27:31,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-04-05 16:27:31,333 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:27:31,334 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] [2018-04-05 16:27:31,334 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]=== [2018-04-05 16:27:31,334 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 [2018-04-05 16:27:31,352 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:27:31,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:27:31,407 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:27:31,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:27:31,562 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:27:31,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:27:31,649 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:27:31,649 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2018-04-05 16:27:31,650 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-05 16:27:31,650 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-05 16:27:31,650 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-05 16:27:31,651 INFO L87 Difference]: Start difference. First operand 64 states and 67 transitions. Second operand 7 states. [2018-04-05 16:27:32,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:27:32,439 INFO L93 Difference]: Finished difference Result 68 states and 71 transitions. [2018-04-05 16:27:32,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-05 16:27:32,440 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2018-04-05 16:27:32,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:27:32,441 INFO L225 Difference]: With dead ends: 68 [2018-04-05 16:27:32,442 INFO L226 Difference]: Without dead ends: 67 [2018-04-05 16:27:32,442 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-04-05 16:27:32,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-04-05 16:27:32,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 63. [2018-04-05 16:27:32,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-04-05 16:27:32,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 66 transitions. [2018-04-05 16:27:32,450 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 66 transitions. Word has length 38 [2018-04-05 16:27:32,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:27:32,450 INFO L459 AbstractCegarLoop]: Abstraction has 63 states and 66 transitions. [2018-04-05 16:27:32,450 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-05 16:27:32,451 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 66 transitions. [2018-04-05 16:27:32,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-04-05 16:27:32,452 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:27:32,462 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] [2018-04-05 16:27:32,462 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]=== [2018-04-05 16:27:32,462 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 [2018-04-05 16:27:32,490 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:27:32,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:27:32,564 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:27:33,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:27:33,044 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:27:33,105 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 [2018-04-05 16:27:33,105 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:27:33,180 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 [2018-04-05 16:27:33,180 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:27:33,205 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:27:33,206 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2018-04-05 16:27:33,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:27:33,343 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:27:33,343 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2018-04-05 16:27:33,343 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-05 16:27:33,344 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-05 16:27:33,344 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-04-05 16:27:33,344 INFO L87 Difference]: Start difference. First operand 63 states and 66 transitions. Second operand 10 states. [2018-04-05 16:27:34,001 WARN L148 SmtUtils]: Spent 104ms on a formula simplification that was a NOOP. DAG size: 16 [2018-04-05 16:27:34,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:27:34,570 INFO L93 Difference]: Finished difference Result 68 states and 71 transitions. [2018-04-05 16:27:34,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-05 16:27:34,570 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 38 [2018-04-05 16:27:34,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:27:34,571 INFO L225 Difference]: With dead ends: 68 [2018-04-05 16:27:34,571 INFO L226 Difference]: Without dead ends: 67 [2018-04-05 16:27:34,572 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 65 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2018-04-05 16:27:34,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-04-05 16:27:34,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2018-04-05 16:27:34,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-04-05 16:27:34,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 70 transitions. [2018-04-05 16:27:34,623 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 70 transitions. Word has length 38 [2018-04-05 16:27:34,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:27:34,624 INFO L459 AbstractCegarLoop]: Abstraction has 67 states and 70 transitions. [2018-04-05 16:27:34,624 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-05 16:27:34,624 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 70 transitions. [2018-04-05 16:27:34,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-04-05 16:27:34,626 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:27:34,638 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] [2018-04-05 16:27:34,638 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]=== [2018-04-05 16:27:34,638 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 [2018-04-05 16:27:34,676 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:27:34,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:27:34,744 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:27:34,842 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 [2018-04-05 16:27:34,843 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:27:34,866 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:27:34,867 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-05 16:27:34,962 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:27:34,970 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:27:34,971 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 [2018-04-05 16:27:34,971 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:27:34,994 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:27:34,995 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:8 [2018-04-05 16:27:35,133 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 [2018-04-05 16:27:35,142 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 [2018-04-05 16:27:35,142 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:27:35,149 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:27:35,183 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. [2018-04-05 16:27:35,183 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:25 [2018-04-05 16:27:35,297 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 [2018-04-05 16:27:35,317 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 [2018-04-05 16:27:35,317 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:27:35,385 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:27:35,500 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. [2018-04-05 16:27:35,500 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:39, output treesize:35 [2018-04-05 16:27:36,699 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 [2018-04-05 16:27:36,745 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 [2018-04-05 16:27:36,746 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-05 16:27:36,800 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 [2018-04-05 16:27:36,801 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 16:27:36,825 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:27:36,904 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:27:36,905 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:52, output treesize:29 [2018-04-05 16:27:37,138 WARN L151 SmtUtils]: Spent 147ms on a formula simplification. DAG size of input: 15 DAG size of output 15 [2018-04-05 16:27:37,852 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:27:37,852 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:27:40,205 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 [2018-04-05 16:27:40,205 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:27:40,249 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 [2018-04-05 16:27:40,321 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 [2018-04-05 16:27:40,322 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 16:27:40,330 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:27:40,373 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. [2018-04-05 16:27:40,373 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:35, output treesize:7 [2018-04-05 16:27:40,612 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:27:40,681 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:27:40,681 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 14] total 30 [2018-04-05 16:27:40,681 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-04-05 16:27:40,682 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-04-05 16:27:40,682 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=836, Unknown=0, NotChecked=0, Total=930 [2018-04-05 16:27:40,682 INFO L87 Difference]: Start difference. First operand 67 states and 70 transitions. Second operand 31 states. [2018-04-05 16:27:43,087 WARN L151 SmtUtils]: Spent 245ms on a formula simplification. DAG size of input: 82 DAG size of output 67 [2018-04-05 16:27:43,391 WARN L151 SmtUtils]: Spent 122ms on a formula simplification. DAG size of input: 65 DAG size of output 57 [2018-04-05 16:27:43,790 WARN L151 SmtUtils]: Spent 260ms on a formula simplification. DAG size of input: 77 DAG size of output 66 [2018-04-05 16:27:44,349 WARN L151 SmtUtils]: Spent 384ms on a formula simplification. DAG size of input: 81 DAG size of output 69 [2018-04-05 16:27:44,679 WARN L151 SmtUtils]: Spent 225ms on a formula simplification. DAG size of input: 77 DAG size of output 64 [2018-04-05 16:27:45,030 WARN L151 SmtUtils]: Spent 215ms on a formula simplification. DAG size of input: 58 DAG size of output 54 [2018-04-05 16:27:45,501 WARN L151 SmtUtils]: Spent 225ms on a formula simplification. DAG size of input: 61 DAG size of output 57 [2018-04-05 16:27:45,803 WARN L151 SmtUtils]: Spent 137ms on a formula simplification. DAG size of input: 61 DAG size of output 51 [2018-04-05 16:27:46,154 WARN L151 SmtUtils]: Spent 179ms on a formula simplification. DAG size of input: 67 DAG size of output 57 [2018-04-05 16:27:48,013 WARN L151 SmtUtils]: Spent 268ms on a formula simplification. DAG size of input: 58 DAG size of output 54 [2018-04-05 16:27:48,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:27:48,441 INFO L93 Difference]: Finished difference Result 99 states and 104 transitions. [2018-04-05 16:27:48,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-04-05 16:27:48,442 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 46 [2018-04-05 16:27:48,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:27:48,447 INFO L225 Difference]: With dead ends: 99 [2018-04-05 16:27:48,447 INFO L226 Difference]: Without dead ends: 98 [2018-04-05 16:27:48,449 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 60 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=350, Invalid=2302, Unknown=0, NotChecked=0, Total=2652 [2018-04-05 16:27:48,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2018-04-05 16:27:48,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 87. [2018-04-05 16:27:48,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-04-05 16:27:48,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 93 transitions. [2018-04-05 16:27:48,490 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 93 transitions. Word has length 46 [2018-04-05 16:27:48,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:27:48,491 INFO L459 AbstractCegarLoop]: Abstraction has 87 states and 93 transitions. [2018-04-05 16:27:48,505 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-04-05 16:27:48,505 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 93 transitions. [2018-04-05 16:27:48,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-04-05 16:27:48,506 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:27:48,507 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] [2018-04-05 16:27:48,507 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]=== [2018-04-05 16:27:48,507 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 [2018-04-05 16:27:48,547 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:27:48,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:27:48,594 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:27:48,675 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 [2018-04-05 16:27:48,678 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 [2018-04-05 16:27:48,679 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:27:48,686 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:27:48,717 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. [2018-04-05 16:27:48,717 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:21 [2018-04-05 16:27:49,087 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 [2018-04-05 16:27:49,135 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 [2018-04-05 16:27:49,136 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-05 16:27:49,156 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:27:49,212 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:27:49,212 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:38, output treesize:29 [2018-04-05 16:27:49,444 WARN L151 SmtUtils]: Spent 179ms on a formula simplification. DAG size of input: 15 DAG size of output 15 [2018-04-05 16:27:49,778 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:27:49,778 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:27:51,220 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 [2018-04-05 16:27:51,220 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:27:51,265 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 [2018-04-05 16:27:51,331 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 [2018-04-05 16:27:51,332 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 16:27:51,341 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:27:51,372 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. [2018-04-05 16:27:51,372 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:35, output treesize:7 [2018-04-05 16:27:51,416 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:27:51,468 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:27:51,468 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2018-04-05 16:27:51,469 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-04-05 16:27:51,469 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-04-05 16:27:51,469 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2018-04-05 16:27:51,469 INFO L87 Difference]: Start difference. First operand 87 states and 93 transitions. Second operand 23 states. [2018-04-05 16:27:52,486 WARN L151 SmtUtils]: Spent 144ms on a formula simplification. DAG size of input: 59 DAG size of output 56 [2018-04-05 16:27:53,128 WARN L151 SmtUtils]: Spent 326ms on a formula simplification. DAG size of input: 58 DAG size of output 53 [2018-04-05 16:27:53,552 WARN L151 SmtUtils]: Spent 308ms on a formula simplification. DAG size of input: 62 DAG size of output 58 [2018-04-05 16:27:53,831 WARN L151 SmtUtils]: Spent 141ms on a formula simplification. DAG size of input: 52 DAG size of output 50 [2018-04-05 16:27:54,314 WARN L151 SmtUtils]: Spent 352ms on a formula simplification. DAG size of input: 58 DAG size of output 53 [2018-04-05 16:27:54,635 WARN L148 SmtUtils]: Spent 123ms on a formula simplification that was a NOOP. DAG size: 43 [2018-04-05 16:27:55,336 WARN L148 SmtUtils]: Spent 135ms on a formula simplification that was a NOOP. DAG size: 43 [2018-04-05 16:27:57,000 WARN L148 SmtUtils]: Spent 127ms on a formula simplification that was a NOOP. DAG size: 47 [2018-04-05 16:27:57,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:27:57,102 INFO L93 Difference]: Finished difference Result 132 states and 145 transitions. [2018-04-05 16:27:57,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-05 16:27:57,103 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 47 [2018-04-05 16:27:57,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:27:57,104 INFO L225 Difference]: With dead ends: 132 [2018-04-05 16:27:57,105 INFO L226 Difference]: Without dead ends: 131 [2018-04-05 16:27:57,105 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 71 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=292, Invalid=1268, Unknown=0, NotChecked=0, Total=1560 [2018-04-05 16:27:57,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2018-04-05 16:27:57,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 105. [2018-04-05 16:27:57,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-04-05 16:27:57,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 115 transitions. [2018-04-05 16:27:57,148 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 115 transitions. Word has length 47 [2018-04-05 16:27:57,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:27:57,152 INFO L459 AbstractCegarLoop]: Abstraction has 105 states and 115 transitions. [2018-04-05 16:27:57,152 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-04-05 16:27:57,152 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 115 transitions. [2018-04-05 16:27:57,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-04-05 16:27:57,153 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:27:57,153 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] [2018-04-05 16:27:57,153 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]=== [2018-04-05 16:27:57,154 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 [2018-04-05 16:27:57,184 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:27:57,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:27:57,263 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:27:57,513 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:27:57,514 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 [2018-04-05 16:27:57,519 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 [2018-04-05 16:27:57,520 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:27:57,558 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:27:57,587 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. [2018-04-05 16:27:57,587 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-05 16:27:58,015 WARN L151 SmtUtils]: Spent 146ms on a formula simplification. DAG size of input: 24 DAG size of output 14 [2018-04-05 16:27:58,040 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 [2018-04-05 16:27:58,063 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 [2018-04-05 16:27:58,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:27:58,099 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:27:58,542 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 [2018-04-05 16:27:58,570 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 [2018-04-05 16:27:58,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:27:58,669 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:27:58,670 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11, 6] imperfect sequences [] total 15 [2018-04-05 16:27:58,670 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-05 16:27:58,670 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-05 16:27:58,671 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=107, Unknown=4, NotChecked=92, Total=240 [2018-04-05 16:27:58,671 INFO L87 Difference]: Start difference. First operand 105 states and 115 transitions. Second operand 16 states. [2018-04-05 16:27:58,828 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 [2018-04-05 16:28:00,379 WARN L148 SmtUtils]: Spent 114ms on a formula simplification that was a NOOP. DAG size: 20 [2018-04-05 16:28:02,542 WARN L151 SmtUtils]: Spent 137ms on a formula simplification. DAG size of input: 22 DAG size of output 20 [2018-04-05 16:28:02,952 WARN L151 SmtUtils]: Spent 127ms on a formula simplification. DAG size of input: 21 DAG size of output 20 [2018-04-05 16:28:03,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:28:03,411 INFO L93 Difference]: Finished difference Result 195 states and 214 transitions. [2018-04-05 16:28:03,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-05 16:28:03,419 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 52 [2018-04-05 16:28:03,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:28:03,422 INFO L225 Difference]: With dead ends: 195 [2018-04-05 16:28:03,422 INFO L226 Difference]: Without dead ends: 182 [2018-04-05 16:28:03,423 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 90 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=73, Invalid=283, Unknown=6, NotChecked=190, Total=552 [2018-04-05 16:28:03,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2018-04-05 16:28:03,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 180. [2018-04-05 16:28:03,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2018-04-05 16:28:03,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 198 transitions. [2018-04-05 16:28:03,498 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 198 transitions. Word has length 52 [2018-04-05 16:28:03,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:28:03,498 INFO L459 AbstractCegarLoop]: Abstraction has 180 states and 198 transitions. [2018-04-05 16:28:03,499 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-05 16:28:03,499 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 198 transitions. [2018-04-05 16:28:03,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-04-05 16:28:03,500 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:28:03,501 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] [2018-04-05 16:28:03,501 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]=== [2018-04-05 16:28:03,501 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 [2018-04-05 16:28:03,559 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:28:03,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:28:03,654 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:28:04,078 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:28:04,079 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 [2018-04-05 16:28:04,096 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 [2018-04-05 16:28:04,096 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:28:04,154 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:28:04,208 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. [2018-04-05 16:28:04,209 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-05 16:28:04,749 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 [2018-04-05 16:28:04,781 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 [2018-04-05 16:28:04,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:28:04,799 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:28:05,026 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 [2018-04-05 16:28:05,064 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 [2018-04-05 16:28:05,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:28:05,244 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:28:05,244 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11, 6] imperfect sequences [] total 15 [2018-04-05 16:28:05,244 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-05 16:28:05,245 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-05 16:28:05,245 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=107, Unknown=4, NotChecked=92, Total=240 [2018-04-05 16:28:05,245 INFO L87 Difference]: Start difference. First operand 180 states and 198 transitions. Second operand 16 states. [2018-04-05 16:28:05,427 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 [2018-04-05 16:28:08,055 WARN L151 SmtUtils]: Spent 126ms on a formula simplification. DAG size of input: 22 DAG size of output 20 [2018-04-05 16:28:08,595 WARN L151 SmtUtils]: Spent 331ms on a formula simplification. DAG size of input: 21 DAG size of output 20 [2018-04-05 16:28:09,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:28:09,099 INFO L93 Difference]: Finished difference Result 270 states and 296 transitions. [2018-04-05 16:28:09,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-05 16:28:09,099 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 53 [2018-04-05 16:28:09,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:28:09,101 INFO L225 Difference]: With dead ends: 270 [2018-04-05 16:28:09,101 INFO L226 Difference]: Without dead ends: 257 [2018-04-05 16:28:09,102 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 92 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=73, Invalid=283, Unknown=6, NotChecked=190, Total=552 [2018-04-05 16:28:09,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2018-04-05 16:28:09,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 181. [2018-04-05 16:28:09,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2018-04-05 16:28:09,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 199 transitions. [2018-04-05 16:28:09,223 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 199 transitions. Word has length 53 [2018-04-05 16:28:09,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:28:09,223 INFO L459 AbstractCegarLoop]: Abstraction has 181 states and 199 transitions. [2018-04-05 16:28:09,224 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-05 16:28:09,224 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 199 transitions. [2018-04-05 16:28:09,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-04-05 16:28:09,225 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:28:09,225 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] [2018-04-05 16:28:09,225 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]=== [2018-04-05 16:28:09,233 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 [2018-04-05 16:28:09,277 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:28:09,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:28:09,359 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:28:09,638 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:28:09,639 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 [2018-04-05 16:28:09,653 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 [2018-04-05 16:28:09,653 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:28:09,692 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:28:09,732 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. [2018-04-05 16:28:09,733 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-05 16:28:10,265 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 [2018-04-05 16:28:10,270 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 [2018-04-05 16:28:10,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:28:10,290 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:28:10,607 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 [2018-04-05 16:28:10,627 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 [2018-04-05 16:28:10,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:28:10,738 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:28:10,738 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11, 6] imperfect sequences [] total 15 [2018-04-05 16:28:10,738 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-05 16:28:10,739 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-05 16:28:10,739 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=107, Unknown=4, NotChecked=92, Total=240 [2018-04-05 16:28:10,739 INFO L87 Difference]: Start difference. First operand 181 states and 199 transitions. Second operand 16 states. [2018-04-05 16:28:10,882 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 [2018-04-05 16:28:13,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:28:13,362 INFO L93 Difference]: Finished difference Result 270 states and 296 transitions. [2018-04-05 16:28:13,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-05 16:28:13,363 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 53 [2018-04-05 16:28:13,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:28:13,364 INFO L225 Difference]: With dead ends: 270 [2018-04-05 16:28:13,365 INFO L226 Difference]: Without dead ends: 257 [2018-04-05 16:28:13,365 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 92 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=73, Invalid=283, Unknown=6, NotChecked=190, Total=552 [2018-04-05 16:28:13,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2018-04-05 16:28:13,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 181. [2018-04-05 16:28:13,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2018-04-05 16:28:13,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 199 transitions. [2018-04-05 16:28:13,404 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 199 transitions. Word has length 53 [2018-04-05 16:28:13,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:28:13,404 INFO L459 AbstractCegarLoop]: Abstraction has 181 states and 199 transitions. [2018-04-05 16:28:13,404 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-05 16:28:13,404 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 199 transitions. [2018-04-05 16:28:13,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-04-05 16:28:13,406 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:28:13,408 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] [2018-04-05 16:28:13,408 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]=== [2018-04-05 16:28:13,409 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 [2018-04-05 16:28:13,435 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:28:13,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:28:13,484 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:28:13,725 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:28:13,726 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 [2018-04-05 16:28:13,733 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 [2018-04-05 16:28:13,734 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:28:13,815 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:28:13,934 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. [2018-04-05 16:28:13,935 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-05 16:28:14,351 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 [2018-04-05 16:28:14,363 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 [2018-04-05 16:28:14,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:28:14,375 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:28:14,842 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 [2018-04-05 16:28:14,872 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 [2018-04-05 16:28:14,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:28:14,990 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:28:14,990 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11, 6] imperfect sequences [] total 15 [2018-04-05 16:28:14,991 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-05 16:28:14,991 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-05 16:28:14,991 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=107, Unknown=4, NotChecked=92, Total=240 [2018-04-05 16:28:14,991 INFO L87 Difference]: Start difference. First operand 181 states and 199 transitions. Second operand 16 states. [2018-04-05 16:28:15,130 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 [2018-04-05 16:28:17,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:28:17,599 INFO L93 Difference]: Finished difference Result 183 states and 199 transitions. [2018-04-05 16:28:17,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-05 16:28:17,599 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 54 [2018-04-05 16:28:17,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:28:17,601 INFO L225 Difference]: With dead ends: 183 [2018-04-05 16:28:17,601 INFO L226 Difference]: Without dead ends: 170 [2018-04-05 16:28:17,602 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 94 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=73, Invalid=283, Unknown=6, NotChecked=190, Total=552 [2018-04-05 16:28:17,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2018-04-05 16:28:17,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 92. [2018-04-05 16:28:17,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2018-04-05 16:28:17,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 99 transitions. [2018-04-05 16:28:17,646 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 99 transitions. Word has length 54 [2018-04-05 16:28:17,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:28:17,646 INFO L459 AbstractCegarLoop]: Abstraction has 92 states and 99 transitions. [2018-04-05 16:28:17,646 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-05 16:28:17,646 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 99 transitions. [2018-04-05 16:28:17,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-04-05 16:28:17,647 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:28:17,647 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] [2018-04-05 16:28:17,648 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]=== [2018-04-05 16:28:17,648 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 [2018-04-05 16:28:17,694 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:28:17,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:28:17,749 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:28:17,767 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 [2018-04-05 16:28:17,768 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:28:17,793 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:28:17,793 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-05 16:28:17,877 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 [2018-04-05 16:28:17,884 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 [2018-04-05 16:28:17,885 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:28:17,894 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:28:17,901 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:28:17,901 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:11 [2018-04-05 16:28:18,543 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 [2018-04-05 16:28:18,593 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 [2018-04-05 16:28:18,594 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-05 16:28:18,610 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:28:18,658 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:28:18,659 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:32 [2018-04-05 16:28:18,990 WARN L148 SmtUtils]: Spent 102ms on a formula simplification that was a NOOP. DAG size: 15 [2018-04-05 16:28:19,246 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:28:19,289 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:28:20,135 WARN L148 SmtUtils]: Spent 127ms on a formula simplification that was a NOOP. DAG size: 20 [2018-04-05 16:28:20,864 WARN L148 SmtUtils]: Spent 139ms on a formula simplification that was a NOOP. DAG size: 20 [2018-04-05 16:28:22,159 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 [2018-04-05 16:28:22,255 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 [2018-04-05 16:28:22,256 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:28:22,265 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:28:22,310 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:28:22,310 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:33, output treesize:35 [2018-04-05 16:28:22,582 WARN L151 SmtUtils]: Spent 127ms on a formula simplification. DAG size of input: 18 DAG size of output 16 [2018-04-05 16:28:22,839 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:28:22,891 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:28:22,891 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 31 [2018-04-05 16:28:22,891 INFO L442 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-04-05 16:28:22,892 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-04-05 16:28:22,892 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=890, Unknown=0, NotChecked=0, Total=992 [2018-04-05 16:28:22,892 INFO L87 Difference]: Start difference. First operand 92 states and 99 transitions. Second operand 32 states. [2018-04-05 16:28:24,963 WARN L151 SmtUtils]: Spent 174ms on a formula simplification. DAG size of input: 43 DAG size of output 39 [2018-04-05 16:28:25,495 WARN L151 SmtUtils]: Spent 150ms on a formula simplification. DAG size of input: 46 DAG size of output 36 [2018-04-05 16:28:26,154 WARN L151 SmtUtils]: Spent 213ms on a formula simplification. DAG size of input: 43 DAG size of output 41 [2018-04-05 16:28:26,755 WARN L151 SmtUtils]: Spent 220ms on a formula simplification. DAG size of input: 44 DAG size of output 38 [2018-04-05 16:28:27,224 WARN L151 SmtUtils]: Spent 358ms on a formula simplification. DAG size of input: 48 DAG size of output 43 [2018-04-05 16:28:27,526 WARN L151 SmtUtils]: Spent 200ms on a formula simplification. DAG size of input: 39 DAG size of output 35 [2018-04-05 16:28:27,813 WARN L151 SmtUtils]: Spent 115ms on a formula simplification. DAG size of input: 31 DAG size of output 29 [2018-04-05 16:28:28,096 WARN L151 SmtUtils]: Spent 185ms on a formula simplification. DAG size of input: 43 DAG size of output 40 [2018-04-05 16:28:28,396 WARN L151 SmtUtils]: Spent 141ms on a formula simplification. DAG size of input: 36 DAG size of output 35 [2018-04-05 16:28:28,748 WARN L151 SmtUtils]: Spent 231ms on a formula simplification. DAG size of input: 46 DAG size of output 41 [2018-04-05 16:28:29,338 WARN L151 SmtUtils]: Spent 475ms on a formula simplification. DAG size of input: 50 DAG size of output 44 [2018-04-05 16:28:30,217 WARN L151 SmtUtils]: Spent 629ms on a formula simplification. DAG size of input: 41 DAG size of output 38 [2018-04-05 16:28:30,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:28:30,526 INFO L93 Difference]: Finished difference Result 111 states and 118 transitions. [2018-04-05 16:28:30,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-04-05 16:28:30,527 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 56 [2018-04-05 16:28:30,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:28:30,528 INFO L225 Difference]: With dead ends: 111 [2018-04-05 16:28:30,528 INFO L226 Difference]: Without dead ends: 110 [2018-04-05 16:28:30,529 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=524, Invalid=2026, Unknown=0, NotChecked=0, Total=2550 [2018-04-05 16:28:30,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2018-04-05 16:28:30,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 65. [2018-04-05 16:28:30,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-04-05 16:28:30,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 69 transitions. [2018-04-05 16:28:30,566 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 69 transitions. Word has length 56 [2018-04-05 16:28:30,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:28:30,566 INFO L459 AbstractCegarLoop]: Abstraction has 65 states and 69 transitions. [2018-04-05 16:28:30,567 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-04-05 16:28:30,567 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 69 transitions. [2018-04-05 16:28:30,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-04-05 16:28:30,567 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:28:30,568 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] [2018-04-05 16:28:30,568 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]=== [2018-04-05 16:28:30,568 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 [2018-04-05 16:28:30,594 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:28:30,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:28:30,644 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:28:30,650 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 [2018-04-05 16:28:30,651 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:28:30,689 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 [2018-04-05 16:28:30,690 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:28:30,725 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:28:30,725 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-05 16:28:30,826 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:28:30,835 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 [2018-04-05 16:28:30,836 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:28:30,900 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:28:30,909 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:28:30,910 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 [2018-04-05 16:28:30,910 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:28:30,948 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:28:30,949 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2018-04-05 16:28:31,098 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 [2018-04-05 16:28:31,100 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 [2018-04-05 16:28:31,101 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:28:31,108 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:28:31,140 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:28:31,141 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:25, output treesize:21 [2018-04-05 16:28:31,242 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 [2018-04-05 16:28:31,244 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 [2018-04-05 16:28:31,245 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:28:31,276 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:28:31,326 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. [2018-04-05 16:28:31,327 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:28 [2018-04-05 16:28:34,594 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 [2018-04-05 16:28:34,636 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 [2018-04-05 16:28:34,637 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-05 16:28:34,703 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 [2018-04-05 16:28:34,704 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 16:28:34,758 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:28:34,924 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:28:34,924 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:60, output treesize:40 [2018-04-05 16:28:35,216 WARN L148 SmtUtils]: Spent 102ms on a formula simplification that was a NOOP. DAG size: 18 [2018-04-05 16:28:35,513 WARN L148 SmtUtils]: Spent 114ms on a formula simplification that was a NOOP. DAG size: 18 [2018-04-05 16:28:35,954 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:28:35,954 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:28:40,421 WARN L148 SmtUtils]: Spent 150ms on a formula simplification that was a NOOP. DAG size: 27 [2018-04-05 16:28:41,597 WARN L148 SmtUtils]: Spent 130ms on a formula simplification that was a NOOP. DAG size: 36 [2018-04-05 16:28:45,020 WARN L151 SmtUtils]: Spent 193ms on a formula simplification. DAG size of input: 39 DAG size of output 33 [2018-04-05 16:28:45,084 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 [2018-04-05 16:28:45,318 WARN L151 SmtUtils]: Spent 232ms on a formula simplification. DAG size of input: 36 DAG size of output 31 [2018-04-05 16:28:45,341 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 [2018-04-05 16:28:45,341 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:28:45,376 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:28:45,428 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-04-05 16:28:45,428 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:65, output treesize:74 [2018-04-05 16:28:46,402 WARN L148 SmtUtils]: Spent 605ms on a formula simplification that was a NOOP. DAG size: 34 [2018-04-05 16:28:47,920 WARN L148 SmtUtils]: Spent 931ms on a formula simplification that was a NOOP. DAG size: 34 [2018-04-05 16:28:47,950 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:28:47,980 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:28:47,981 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 27] total 55 [2018-04-05 16:28:47,981 INFO L442 AbstractCegarLoop]: Interpolant automaton has 56 states [2018-04-05 16:28:47,981 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2018-04-05 16:28:47,982 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=2841, Unknown=0, NotChecked=0, Total=3080 [2018-04-05 16:28:47,982 INFO L87 Difference]: Start difference. First operand 65 states and 69 transitions. Second operand 56 states. [2018-04-05 16:28:50,627 WARN L151 SmtUtils]: Spent 297ms on a formula simplification. DAG size of input: 75 DAG size of output 73 [2018-04-05 16:28:51,097 WARN L151 SmtUtils]: Spent 226ms on a formula simplification. DAG size of input: 68 DAG size of output 60 [2018-04-05 16:28:52,106 WARN L151 SmtUtils]: Spent 768ms on a formula simplification. DAG size of input: 77 DAG size of output 67 [2018-04-05 16:28:54,141 WARN L151 SmtUtils]: Spent 1608ms on a formula simplification. DAG size of input: 87 DAG size of output 69 [2018-04-05 16:28:55,150 WARN L151 SmtUtils]: Spent 668ms on a formula simplification. DAG size of input: 85 DAG size of output 67 [2018-04-05 16:28:55,406 WARN L151 SmtUtils]: Spent 126ms on a formula simplification. DAG size of input: 61 DAG size of output 59 [2018-04-05 16:28:56,028 WARN L151 SmtUtils]: Spent 240ms on a formula simplification. DAG size of input: 100 DAG size of output 71 [2018-04-05 16:28:56,872 WARN L151 SmtUtils]: Spent 450ms on a formula simplification. DAG size of input: 85 DAG size of output 66 [2018-04-05 16:28:58,984 WARN L151 SmtUtils]: Spent 120ms on a formula simplification. DAG size of input: 84 DAG size of output 76 [2018-04-05 16:29:00,160 WARN L151 SmtUtils]: Spent 328ms on a formula simplification. DAG size of input: 85 DAG size of output 65 [2018-04-05 16:29:01,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:29:01,269 INFO L93 Difference]: Finished difference Result 114 states and 121 transitions. [2018-04-05 16:29:01,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2018-04-05 16:29:01,269 INFO L78 Accepts]: Start accepts. Automaton has 56 states. Word has length 62 [2018-04-05 16:29:01,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:29:01,269 INFO L225 Difference]: With dead ends: 114 [2018-04-05 16:29:01,270 INFO L226 Difference]: Without dead ends: 0 [2018-04-05 16:29:01,273 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 65 SyntacticMatches, 4 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2213 ImplicationChecksByTransitivity, 26.6s TimeCoverageRelationStatistics Valid=2033, Invalid=10399, Unknown=0, NotChecked=0, Total=12432 [2018-04-05 16:29:01,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-04-05 16:29:01,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-04-05 16:29:01,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-04-05 16:29:01,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-04-05 16:29:01,273 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62 [2018-04-05 16:29:01,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:29:01,274 INFO L459 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-04-05 16:29:01,274 INFO L460 AbstractCegarLoop]: Interpolant automaton has 56 states. [2018-04-05 16:29:01,274 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-04-05 16:29:01,274 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-04-05 16:29:01,278 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-04-05 16:29:01,638 WARN L151 SmtUtils]: Spent 262ms on a formula simplification. DAG size of input: 261 DAG size of output 248 [2018-04-05 16:29:02,429 WARN L151 SmtUtils]: Spent 789ms on a formula simplification. DAG size of input: 298 DAG size of output 288 [2018-04-05 16:29:02,907 WARN L151 SmtUtils]: Spent 448ms on a formula simplification. DAG size of input: 152 DAG size of output 1 [2018-04-05 16:29:03,014 WARN L151 SmtUtils]: Spent 104ms on a formula simplification. DAG size of input: 123 DAG size of output 3 Received shutdown request... [2018-04-05 16:32:30,342 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-04-05 16:32:30,344 INFO L168 Benchmark]: Toolchain (without parser) took 313185.11 ms. Allocated memory was 302.5 MB in the beginning and 645.4 MB in the end (delta: 342.9 MB). Free memory was 239.0 MB in the beginning and 409.7 MB in the end (delta: -170.6 MB). Peak memory consumption was 267.0 MB. Max. memory is 5.3 GB. [2018-04-05 16:32:30,346 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 302.5 MB. Free memory is still 263.6 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-05 16:32:30,347 INFO L168 Benchmark]: CACSL2BoogieTranslator took 897.12 ms. Allocated memory is still 302.5 MB. Free memory was 239.0 MB in the beginning and 215.0 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 5.3 GB. [2018-04-05 16:32:30,347 INFO L168 Benchmark]: Boogie Preprocessor took 151.03 ms. Allocated memory is still 302.5 MB. Free memory was 215.0 MB in the beginning and 213.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-04-05 16:32:30,348 INFO L168 Benchmark]: RCFGBuilder took 1505.03 ms. Allocated memory was 302.5 MB in the beginning and 461.9 MB in the end (delta: 159.4 MB). Free memory was 213.0 MB in the beginning and 396.3 MB in the end (delta: -183.3 MB). Peak memory consumption was 22.4 MB. Max. memory is 5.3 GB. [2018-04-05 16:32:30,348 INFO L168 Benchmark]: TraceAbstraction took 310607.26 ms. Allocated memory was 461.9 MB in the beginning and 645.4 MB in the end (delta: 183.5 MB). Free memory was 396.3 MB in the beginning and 409.7 MB in the end (delta: -13.4 MB). Peak memory consumption was 264.9 MB. Max. memory is 5.3 GB. [2018-04-05 16:32:30,350 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 302.5 MB. Free memory is still 263.6 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 897.12 ms. Allocated memory is still 302.5 MB. Free memory was 239.0 MB in the beginning and 215.0 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 151.03 ms. Allocated memory is still 302.5 MB. Free memory was 215.0 MB in the beginning and 213.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 1505.03 ms. Allocated memory was 302.5 MB in the beginning and 461.9 MB in the end (delta: 159.4 MB). Free memory was 213.0 MB in the beginning and 396.3 MB in the end (delta: -183.3 MB). Peak memory consumption was 22.4 MB. Max. memory is 5.3 GB. * TraceAbstraction took 310607.26 ms. Allocated memory was 461.9 MB in the beginning and 645.4 MB in the end (delta: 183.5 MB). Free memory was 396.3 MB in the beginning and 409.7 MB in the end (delta: -13.4 MB). Peak memory consumption was 264.9 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 277. 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-0-2018-04-05_16-32-30-376.csv Completed graceful shutdown