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 --cacsl2boogietranslator.bitprecise.bitfields false -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf -i ../../../trunk/examples/svcomp/array-memsafety/openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-408c70d-m [2018-04-12 10:25:58,368 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-12 10:25:58,370 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-12 10:25:58,382 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-12 10:25:58,382 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-12 10:25:58,383 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-12 10:25:58,384 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-12 10:25:58,385 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-12 10:25:58,387 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-12 10:25:58,388 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-12 10:25:58,389 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-12 10:25:58,389 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-12 10:25:58,390 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-12 10:25:58,391 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-12 10:25:58,391 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-12 10:25:58,393 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-12 10:25:58,395 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-12 10:25:58,397 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-12 10:25:58,398 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-12 10:25:58,398 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-12 10:25:58,400 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-12 10:25:58,400 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-12 10:25:58,400 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-12 10:25:58,401 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-12 10:25:58,402 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-12 10:25:58,403 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-12 10:25:58,403 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-12 10:25:58,404 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-12 10:25:58,404 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-12 10:25:58,404 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-12 10:25:58,405 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-12 10:25:58,405 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf [2018-04-12 10:25:58,414 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-12 10:25:58,414 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-12 10:25:58,415 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-12 10:25:58,415 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-12 10:25:58,415 INFO L133 SettingsManager]: * Use SBE=true [2018-04-12 10:25:58,415 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-12 10:25:58,416 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-12 10:25:58,416 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-12 10:25:58,416 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-12 10:25:58,416 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-12 10:25:58,416 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-12 10:25:58,416 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-12 10:25:58,416 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-12 10:25:58,416 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-12 10:25:58,416 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-12 10:25:58,416 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-12 10:25:58,416 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-12 10:25:58,417 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-12 10:25:58,417 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-12 10:25:58,417 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-12 10:25:58,417 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-12 10:25:58,417 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-12 10:25:58,417 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-12 10:25:58,417 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-04-12 10:25:58,446 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-12 10:25:58,456 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-12 10:25:58,459 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-12 10:25:58,460 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-12 10:25:58,461 INFO L276 PluginConnector]: CDTParser initialized [2018-04-12 10:25:58,461 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:25:58,715 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGef23006fc [2018-04-12 10:25:58,858 INFO L287 CDTParser]: IsIndexed: true [2018-04-12 10:25:58,858 INFO L288 CDTParser]: Found 1 translation units. [2018-04-12 10:25:58,858 INFO L168 CDTParser]: Scanning openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:25:58,866 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-12 10:25:58,867 INFO L215 ultiparseSymbolTable]: [2018-04-12 10:25:58,867 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-12 10:25:58,867 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 [2018-04-12 10:25:58,867 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:25:58,867 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 [2018-04-12 10:25:58,867 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 [2018-04-12 10:25:58,867 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-12 10:25:58,867 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 [2018-04-12 10:25:58,868 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 [2018-04-12 10:25:58,868 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 [2018-04-12 10:25:58,868 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 [2018-04-12 10:25:58,868 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 [2018-04-12 10:25:58,868 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 [2018-04-12 10:25:58,868 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 [2018-04-12 10:25:58,868 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 [2018-04-12 10:25:58,868 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 [2018-04-12 10:25:58,868 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 [2018-04-12 10:25:58,868 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 [2018-04-12 10:25:58,869 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 [2018-04-12 10:25:58,869 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 [2018-04-12 10:25:58,869 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 [2018-04-12 10:25:58,869 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 [2018-04-12 10:25:58,869 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 [2018-04-12 10:25:58,869 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 [2018-04-12 10:25:58,869 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 [2018-04-12 10:25:58,869 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 [2018-04-12 10:25:58,869 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 [2018-04-12 10:25:58,869 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 [2018-04-12 10:25:58,869 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 [2018-04-12 10:25:58,870 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 [2018-04-12 10:25:58,870 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 [2018-04-12 10:25:58,870 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 [2018-04-12 10:25:58,870 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 [2018-04-12 10:25:58,870 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 [2018-04-12 10:25:58,870 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 [2018-04-12 10:25:58,870 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 [2018-04-12 10:25:58,870 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 [2018-04-12 10:25:58,870 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 [2018-04-12 10:25:58,870 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 [2018-04-12 10:25:58,871 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 [2018-04-12 10:25:58,871 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 [2018-04-12 10:25:58,871 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 [2018-04-12 10:25:58,871 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 [2018-04-12 10:25:58,871 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 [2018-04-12 10:25:58,871 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 [2018-04-12 10:25:58,871 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 [2018-04-12 10:25:58,871 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 [2018-04-12 10:25:58,871 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 [2018-04-12 10:25:58,871 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 [2018-04-12 10:25:58,871 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 [2018-04-12 10:25:58,871 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 [2018-04-12 10:25:58,872 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 [2018-04-12 10:25:58,872 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 [2018-04-12 10:25:58,872 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 [2018-04-12 10:25:58,872 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 [2018-04-12 10:25:58,872 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 [2018-04-12 10:25:58,872 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 [2018-04-12 10:25:58,872 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 [2018-04-12 10:25:58,872 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 [2018-04-12 10:25:58,872 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 [2018-04-12 10:25:58,872 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 [2018-04-12 10:25:58,873 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 [2018-04-12 10:25:58,873 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 [2018-04-12 10:25:58,873 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 [2018-04-12 10:25:58,873 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 [2018-04-12 10:25:58,873 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 [2018-04-12 10:25:58,873 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 [2018-04-12 10:25:58,873 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 [2018-04-12 10:25:58,873 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 [2018-04-12 10:25:58,873 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 [2018-04-12 10:25:58,873 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 [2018-04-12 10:25:58,873 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 [2018-04-12 10:25:58,874 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 [2018-04-12 10:25:58,874 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 [2018-04-12 10:25:58,874 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 [2018-04-12 10:25:58,874 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 [2018-04-12 10:25:58,874 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 [2018-04-12 10:25:58,874 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 [2018-04-12 10:25:58,874 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 [2018-04-12 10:25:58,874 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 [2018-04-12 10:25:58,874 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 [2018-04-12 10:25:58,874 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 [2018-04-12 10:25:58,874 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 [2018-04-12 10:25:58,875 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 [2018-04-12 10:25:58,875 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 [2018-04-12 10:25:58,875 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 [2018-04-12 10:25:58,875 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 [2018-04-12 10:25:58,875 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 [2018-04-12 10:25:58,875 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 [2018-04-12 10:25:58,875 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 [2018-04-12 10:25:58,875 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 [2018-04-12 10:25:58,875 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 [2018-04-12 10:25:58,875 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 [2018-04-12 10:25:58,875 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 [2018-04-12 10:25:58,876 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 [2018-04-12 10:25:58,876 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 [2018-04-12 10:25:58,876 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 [2018-04-12 10:25:58,876 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 [2018-04-12 10:25:58,876 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 [2018-04-12 10:25:58,876 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 [2018-04-12 10:25:58,876 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 [2018-04-12 10:25:58,876 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 [2018-04-12 10:25:58,876 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 [2018-04-12 10:25:58,876 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 [2018-04-12 10:25:58,876 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 [2018-04-12 10:25:58,876 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 [2018-04-12 10:25:58,876 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 [2018-04-12 10:25:58,876 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 [2018-04-12 10:25:58,876 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 [2018-04-12 10:25:58,876 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 [2018-04-12 10:25:58,877 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 [2018-04-12 10:25:58,877 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 [2018-04-12 10:25:58,877 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 [2018-04-12 10:25:58,877 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 [2018-04-12 10:25:58,877 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 [2018-04-12 10:25:58,877 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 [2018-04-12 10:25:58,877 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 [2018-04-12 10:25:58,877 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 [2018-04-12 10:25:58,877 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 [2018-04-12 10:25:58,877 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 [2018-04-12 10:25:58,878 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 [2018-04-12 10:25:58,878 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 [2018-04-12 10:25:58,878 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 [2018-04-12 10:25:58,878 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 [2018-04-12 10:25:58,878 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 [2018-04-12 10:25:58,878 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 [2018-04-12 10:25:58,878 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 [2018-04-12 10:25:58,892 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGef23006fc [2018-04-12 10:25:58,895 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-12 10:25:58,896 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-12 10:25:58,897 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-12 10:25:58,897 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-12 10:25:58,900 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-12 10:25:58,901 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.04 10:25:58" (1/1) ... [2018-04-12 10:25:58,903 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74586a08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:25:58, skipping insertion in model container [2018-04-12 10:25:58,903 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.04 10:25:58" (1/1) ... [2018-04-12 10:25:58,915 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-12 10:25:58,936 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-12 10:25:59,059 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-12 10:25:59,094 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-12 10:25:59,100 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 112 non ball SCCs. Number of states in SCCs 112. [2018-04-12 10:25:59,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:25:59 WrapperNode [2018-04-12 10:25:59,129 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-12 10:25:59,129 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-12 10:25:59,129 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-12 10:25:59,129 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-12 10:25:59,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:25:59" (1/1) ... [2018-04-12 10:25:59,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:25:59" (1/1) ... [2018-04-12 10:25:59,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:25:59" (1/1) ... [2018-04-12 10:25:59,148 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:25:59" (1/1) ... [2018-04-12 10:25:59,157 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:25:59" (1/1) ... [2018-04-12 10:25:59,161 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:25:59" (1/1) ... [2018-04-12 10:25:59,163 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:25:59" (1/1) ... [2018-04-12 10:25:59,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-12 10:25:59,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-12 10:25:59,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-12 10:25:59,168 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-12 10:25:59,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:25:59" (1/1) ... No working directory specified, using /home/ultimate/work/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 [2018-04-12 10:25:59,252 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-12 10:25:59,252 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-12 10:25:59,252 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-12 10:25:59,252 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-12 10:25:59,253 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspn [2018-04-12 10:25:59,253 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-12 10:25:59,253 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-12 10:25:59,253 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-12 10:25:59,253 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-12 10:25:59,253 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-12 10:25:59,253 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-12 10:25:59,253 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-12 10:25:59,254 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-12 10:25:59,254 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-12 10:25:59,254 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-12 10:25:59,254 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-12 10:25:59,254 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-12 10:25:59,254 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-12 10:25:59,254 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-12 10:25:59,254 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-12 10:25:59,254 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-12 10:25:59,254 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-12 10:25:59,255 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-12 10:25:59,255 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-12 10:25:59,255 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-12 10:25:59,255 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-12 10:25:59,255 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-12 10:25:59,255 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-12 10:25:59,255 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-12 10:25:59,255 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-12 10:25:59,255 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-12 10:25:59,255 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-12 10:25:59,256 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-12 10:25:59,256 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-12 10:25:59,256 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-12 10:25:59,256 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-12 10:25:59,256 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-12 10:25:59,256 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-12 10:25:59,256 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-12 10:25:59,256 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-12 10:25:59,256 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-12 10:25:59,256 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-12 10:25:59,257 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-12 10:25:59,257 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-12 10:25:59,257 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-12 10:25:59,257 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-12 10:25:59,257 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-12 10:25:59,257 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-12 10:25:59,257 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-12 10:25:59,257 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-12 10:25:59,258 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-12 10:25:59,258 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-12 10:25:59,258 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-12 10:25:59,258 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-12 10:25:59,258 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-12 10:25:59,258 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-12 10:25:59,258 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-12 10:25:59,258 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-12 10:25:59,258 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-12 10:25:59,258 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-12 10:25:59,259 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-12 10:25:59,259 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-12 10:25:59,259 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-12 10:25:59,259 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-12 10:25:59,259 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-12 10:25:59,259 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-12 10:25:59,259 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-12 10:25:59,259 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-12 10:25:59,259 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-12 10:25:59,259 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-12 10:25:59,260 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-12 10:25:59,260 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-12 10:25:59,260 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-12 10:25:59,260 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-12 10:25:59,260 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-12 10:25:59,260 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-12 10:25:59,260 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-12 10:25:59,260 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-12 10:25:59,260 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-12 10:25:59,260 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-12 10:25:59,260 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-12 10:25:59,260 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-12 10:25:59,260 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-12 10:25:59,260 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-12 10:25:59,260 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-12 10:25:59,261 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-12 10:25:59,261 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-12 10:25:59,261 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-12 10:25:59,261 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-12 10:25:59,261 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-12 10:25:59,261 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-12 10:25:59,261 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-12 10:25:59,261 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-12 10:25:59,261 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-12 10:25:59,261 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-12 10:25:59,261 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-12 10:25:59,261 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-12 10:25:59,262 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-12 10:25:59,262 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-12 10:25:59,262 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-12 10:25:59,262 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-12 10:25:59,262 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-12 10:25:59,262 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-12 10:25:59,262 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-12 10:25:59,262 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-12 10:25:59,262 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-12 10:25:59,262 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-12 10:25:59,263 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-12 10:25:59,263 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-12 10:25:59,263 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspn [2018-04-12 10:25:59,263 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-12 10:25:59,263 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-12 10:25:59,263 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-12 10:25:59,263 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-12 10:25:59,263 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-12 10:25:59,263 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-12 10:25:59,264 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-12 10:25:59,264 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-12 10:25:59,531 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-12 10:25:59,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.04 10:25:59 BoogieIcfgContainer [2018-04-12 10:25:59,532 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-12 10:25:59,532 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-12 10:25:59,532 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-12 10:25:59,534 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-12 10:25:59,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.04 10:25:58" (1/3) ... [2018-04-12 10:25:59,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@485b7081 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.04 10:25:59, skipping insertion in model container [2018-04-12 10:25:59,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:25:59" (2/3) ... [2018-04-12 10:25:59,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@485b7081 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.04 10:25:59, skipping insertion in model container [2018-04-12 10:25:59,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.04 10:25:59" (3/3) ... [2018-04-12 10:25:59,536 INFO L107 eAbstractionObserver]: Analyzing ICFG openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:25:59,542 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-12 10:25:59,547 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-04-12 10:25:59,570 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-12 10:25:59,570 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-12 10:25:59,570 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-12 10:25:59,570 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-12 10:25:59,571 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-12 10:25:59,571 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-12 10:25:59,571 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-12 10:25:59,571 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-12 10:25:59,571 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-12 10:25:59,571 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-12 10:25:59,579 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2018-04-12 10:25:59,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-12 10:25:59,586 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:25:59,587 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 10:25:59,587 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]=== [2018-04-12 10:25:59,590 INFO L82 PathProgramCache]: Analyzing trace with hash -376792556, now seen corresponding path program 1 times [2018-04-12 10:25:59,591 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:25:59,591 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:25:59,619 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:25:59,619 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:25:59,619 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:25:59,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:25:59,658 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:25:59,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:25:59,726 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:25:59,727 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-12 10:25:59,728 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-12 10:25:59,735 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-12 10:25:59,736 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-12 10:25:59,738 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 4 states. [2018-04-12 10:25:59,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:25:59,792 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2018-04-12 10:25:59,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-12 10:25:59,793 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-04-12 10:25:59,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:25:59,799 INFO L225 Difference]: With dead ends: 44 [2018-04-12 10:25:59,799 INFO L226 Difference]: Without dead ends: 41 [2018-04-12 10:25:59,800 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-12 10:25:59,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-04-12 10:25:59,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-04-12 10:25:59,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-04-12 10:25:59,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2018-04-12 10:25:59,822 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 13 [2018-04-12 10:25:59,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:25:59,822 INFO L459 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2018-04-12 10:25:59,822 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-12 10:25:59,823 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2018-04-12 10:25:59,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-12 10:25:59,823 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:25:59,823 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 10:25:59,823 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]=== [2018-04-12 10:25:59,823 INFO L82 PathProgramCache]: Analyzing trace with hash -376792555, now seen corresponding path program 1 times [2018-04-12 10:25:59,823 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:25:59,823 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:25:59,824 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:25:59,824 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:25:59,824 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:25:59,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:25:59,839 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:25:59,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:25:59,898 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:25:59,898 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-12 10:25:59,899 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-12 10:25:59,899 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-12 10:25:59,899 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-04-12 10:25:59,899 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand 6 states. [2018-04-12 10:25:59,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:25:59,966 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2018-04-12 10:25:59,967 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-12 10:25:59,967 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-04-12 10:25:59,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:25:59,968 INFO L225 Difference]: With dead ends: 40 [2018-04-12 10:25:59,968 INFO L226 Difference]: Without dead ends: 40 [2018-04-12 10:25:59,968 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-04-12 10:25:59,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-04-12 10:25:59,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-04-12 10:25:59,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-04-12 10:25:59,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2018-04-12 10:25:59,971 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 13 [2018-04-12 10:25:59,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:25:59,971 INFO L459 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2018-04-12 10:25:59,971 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-12 10:25:59,972 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2018-04-12 10:25:59,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-12 10:25:59,972 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:25:59,972 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 10:25:59,972 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]=== [2018-04-12 10:25:59,972 INFO L82 PathProgramCache]: Analyzing trace with hash 1204332646, now seen corresponding path program 1 times [2018-04-12 10:25:59,972 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:25:59,972 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:25:59,973 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:25:59,973 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:25:59,973 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:25:59,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:25:59,981 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:26:00,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:26:00,014 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:26:00,015 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-12 10:26:00,015 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-12 10:26:00,015 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-12 10:26:00,015 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-12 10:26:00,016 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand 4 states. [2018-04-12 10:26:00,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:26:00,044 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2018-04-12 10:26:00,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-12 10:26:00,045 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-04-12 10:26:00,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:26:00,045 INFO L225 Difference]: With dead ends: 39 [2018-04-12 10:26:00,045 INFO L226 Difference]: Without dead ends: 39 [2018-04-12 10:26:00,046 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-12 10:26:00,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-04-12 10:26:00,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-04-12 10:26:00,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-04-12 10:26:00,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2018-04-12 10:26:00,048 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 14 [2018-04-12 10:26:00,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:26:00,048 INFO L459 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2018-04-12 10:26:00,048 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-12 10:26:00,048 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2018-04-12 10:26:00,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-12 10:26:00,048 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:26:00,048 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 10:26:00,048 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]=== [2018-04-12 10:26:00,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1204332647, now seen corresponding path program 1 times [2018-04-12 10:26:00,049 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:26:00,049 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:26:00,049 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:26:00,049 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:26:00,049 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:26:00,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:26:00,060 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:26:00,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:26:00,092 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:26:00,092 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-12 10:26:00,092 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-12 10:26:00,092 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-12 10:26:00,092 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-12 10:26:00,093 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand 5 states. [2018-04-12 10:26:00,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:26:00,114 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2018-04-12 10:26:00,115 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-12 10:26:00,115 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-04-12 10:26:00,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:26:00,115 INFO L225 Difference]: With dead ends: 38 [2018-04-12 10:26:00,115 INFO L226 Difference]: Without dead ends: 38 [2018-04-12 10:26:00,116 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-04-12 10:26:00,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-04-12 10:26:00,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-04-12 10:26:00,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-04-12 10:26:00,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2018-04-12 10:26:00,119 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 14 [2018-04-12 10:26:00,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:26:00,119 INFO L459 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2018-04-12 10:26:00,119 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-12 10:26:00,119 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2018-04-12 10:26:00,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-04-12 10:26:00,120 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:26:00,120 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 10:26:00,120 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]=== [2018-04-12 10:26:00,120 INFO L82 PathProgramCache]: Analyzing trace with hash 1759820867, now seen corresponding path program 1 times [2018-04-12 10:26:00,120 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:26:00,120 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:26:00,121 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:26:00,121 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:26:00,121 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:26:00,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:26:00,134 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:26:00,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:26:00,161 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:26:00,161 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-12 10:26:00,161 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-12 10:26:00,161 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-12 10:26:00,161 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-12 10:26:00,161 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand 6 states. [2018-04-12 10:26:00,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:26:00,215 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2018-04-12 10:26:00,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-12 10:26:00,215 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2018-04-12 10:26:00,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:26:00,216 INFO L225 Difference]: With dead ends: 37 [2018-04-12 10:26:00,216 INFO L226 Difference]: Without dead ends: 37 [2018-04-12 10:26:00,217 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-04-12 10:26:00,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-04-12 10:26:00,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-04-12 10:26:00,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-04-12 10:26:00,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2018-04-12 10:26:00,220 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 18 [2018-04-12 10:26:00,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:26:00,220 INFO L459 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2018-04-12 10:26:00,220 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-12 10:26:00,220 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2018-04-12 10:26:00,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-04-12 10:26:00,221 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:26:00,221 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 10:26:00,221 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]=== [2018-04-12 10:26:00,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1759820868, now seen corresponding path program 1 times [2018-04-12 10:26:00,221 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:26:00,221 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:26:00,222 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:26:00,222 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:26:00,222 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:26:00,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:26:00,233 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:26:00,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:26:00,321 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:26:00,321 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-04-12 10:26:00,322 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-12 10:26:00,322 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-12 10:26:00,322 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-04-12 10:26:00,322 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand 9 states. [2018-04-12 10:26:00,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:26:00,407 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2018-04-12 10:26:00,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-12 10:26:00,407 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2018-04-12 10:26:00,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:26:00,408 INFO L225 Difference]: With dead ends: 40 [2018-04-12 10:26:00,408 INFO L226 Difference]: Without dead ends: 40 [2018-04-12 10:26:00,408 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2018-04-12 10:26:00,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-04-12 10:26:00,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2018-04-12 10:26:00,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-04-12 10:26:00,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2018-04-12 10:26:00,413 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 18 [2018-04-12 10:26:00,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:26:00,413 INFO L459 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2018-04-12 10:26:00,413 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-12 10:26:00,414 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2018-04-12 10:26:00,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-04-12 10:26:00,414 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:26:00,414 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] [2018-04-12 10:26:00,414 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]=== [2018-04-12 10:26:00,414 INFO L82 PathProgramCache]: Analyzing trace with hash -1842322422, now seen corresponding path program 1 times [2018-04-12 10:26:00,415 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:26:00,415 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:26:00,415 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:26:00,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:26:00,416 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:26:00,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:26:00,427 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:26:00,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:26:00,506 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:26:00,506 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-04-12 10:26:00,506 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-12 10:26:00,506 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-12 10:26:00,506 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-04-12 10:26:00,506 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand 10 states. [2018-04-12 10:26:00,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:26:00,598 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2018-04-12 10:26:00,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-12 10:26:00,599 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 21 [2018-04-12 10:26:00,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:26:00,600 INFO L225 Difference]: With dead ends: 44 [2018-04-12 10:26:00,600 INFO L226 Difference]: Without dead ends: 44 [2018-04-12 10:26:00,600 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2018-04-12 10:26:00,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-04-12 10:26:00,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 41. [2018-04-12 10:26:00,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-04-12 10:26:00,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2018-04-12 10:26:00,603 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 21 [2018-04-12 10:26:00,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:26:00,603 INFO L459 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2018-04-12 10:26:00,603 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-12 10:26:00,604 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2018-04-12 10:26:00,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-04-12 10:26:00,604 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:26:00,604 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] [2018-04-12 10:26:00,604 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]=== [2018-04-12 10:26:00,604 INFO L82 PathProgramCache]: Analyzing trace with hash -1842322423, now seen corresponding path program 1 times [2018-04-12 10:26:00,605 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:26:00,605 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:26:00,605 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:26:00,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:26:00,605 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:26:00,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:26:00,614 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:26:00,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:26:00,641 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:26:00,641 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-12 10:26:00,641 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-12 10:26:00,641 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-12 10:26:00,642 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-12 10:26:00,642 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand 7 states. [2018-04-12 10:26:00,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:26:00,697 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2018-04-12 10:26:00,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-12 10:26:00,698 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-04-12 10:26:00,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:26:00,698 INFO L225 Difference]: With dead ends: 41 [2018-04-12 10:26:00,698 INFO L226 Difference]: Without dead ends: 41 [2018-04-12 10:26:00,699 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-04-12 10:26:00,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-04-12 10:26:00,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2018-04-12 10:26:00,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-04-12 10:26:00,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2018-04-12 10:26:00,701 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 21 [2018-04-12 10:26:00,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:26:00,701 INFO L459 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2018-04-12 10:26:00,702 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-12 10:26:00,702 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2018-04-12 10:26:00,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-04-12 10:26:00,702 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:26:00,702 INFO L355 BasicCegarLoop]: trace histogram [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] [2018-04-12 10:26:00,702 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]=== [2018-04-12 10:26:00,703 INFO L82 PathProgramCache]: Analyzing trace with hash 14731087, now seen corresponding path program 1 times [2018-04-12 10:26:00,703 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:26:00,703 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:26:00,703 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:26:00,703 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:26:00,704 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:26:00,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:26:00,717 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:26:00,848 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:26:00,849 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:26:00,849 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-04-12 10:26:00,849 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-04-12 10:26:00,849 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-04-12 10:26:00,849 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2018-04-12 10:26:00,849 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand 14 states. [2018-04-12 10:26:01,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:26:01,073 INFO L93 Difference]: Finished difference Result 72 states and 76 transitions. [2018-04-12 10:26:01,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-12 10:26:01,073 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 26 [2018-04-12 10:26:01,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:26:01,074 INFO L225 Difference]: With dead ends: 72 [2018-04-12 10:26:01,074 INFO L226 Difference]: Without dead ends: 72 [2018-04-12 10:26:01,074 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=501, Unknown=0, NotChecked=0, Total=600 [2018-04-12 10:26:01,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-04-12 10:26:01,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 62. [2018-04-12 10:26:01,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-04-12 10:26:01,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 68 transitions. [2018-04-12 10:26:01,077 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 68 transitions. Word has length 26 [2018-04-12 10:26:01,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:26:01,077 INFO L459 AbstractCegarLoop]: Abstraction has 62 states and 68 transitions. [2018-04-12 10:26:01,077 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-04-12 10:26:01,077 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 68 transitions. [2018-04-12 10:26:01,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-04-12 10:26:01,078 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:26:01,078 INFO L355 BasicCegarLoop]: trace histogram [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] [2018-04-12 10:26:01,078 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]=== [2018-04-12 10:26:01,078 INFO L82 PathProgramCache]: Analyzing trace with hash 14733265, now seen corresponding path program 1 times [2018-04-12 10:26:01,078 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:26:01,078 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:26:01,079 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:26:01,079 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:26:01,079 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:26:01,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:26:01,091 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:26:01,196 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:26:01,196 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:26:01,196 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-04-12 10:26:01,196 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-12 10:26:01,196 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-12 10:26:01,196 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2018-04-12 10:26:01,197 INFO L87 Difference]: Start difference. First operand 62 states and 68 transitions. Second operand 12 states. [2018-04-12 10:26:01,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:26:01,407 INFO L93 Difference]: Finished difference Result 105 states and 110 transitions. [2018-04-12 10:26:01,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-04-12 10:26:01,407 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 26 [2018-04-12 10:26:01,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:26:01,410 INFO L225 Difference]: With dead ends: 105 [2018-04-12 10:26:01,410 INFO L226 Difference]: Without dead ends: 105 [2018-04-12 10:26:01,413 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=338, Unknown=0, NotChecked=0, Total=420 [2018-04-12 10:26:01,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2018-04-12 10:26:01,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 80. [2018-04-12 10:26:01,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-04-12 10:26:01,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 86 transitions. [2018-04-12 10:26:01,418 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 86 transitions. Word has length 26 [2018-04-12 10:26:01,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:26:01,418 INFO L459 AbstractCegarLoop]: Abstraction has 80 states and 86 transitions. [2018-04-12 10:26:01,418 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-12 10:26:01,418 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 86 transitions. [2018-04-12 10:26:01,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-04-12 10:26:01,420 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:26:01,420 INFO L355 BasicCegarLoop]: trace histogram [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] [2018-04-12 10:26:01,421 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]=== [2018-04-12 10:26:01,421 INFO L82 PathProgramCache]: Analyzing trace with hash -1674210477, now seen corresponding path program 1 times [2018-04-12 10:26:01,421 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:26:01,421 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:26:01,422 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:26:01,422 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:26:01,422 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:26:01,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:26:01,434 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:26:01,574 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:26:01,575 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-12 10:26:01,575 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-12 10:26:01,580 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:26:01,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:26:01,619 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 10:26:01,660 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 [2018-04-12 10:26:01,665 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 [2018-04-12 10:26:01,665 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:26:01,667 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:26:01,671 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. [2018-04-12 10:26:01,671 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:21 [2018-04-12 10:26:01,832 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 [2018-04-12 10:26:01,843 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 [2018-04-12 10:26:01,843 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-12 10:26:01,891 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-12 10:26:01,901 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-12 10:26:01,902 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:38, output treesize:29 [2018-04-12 10:26:02,260 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:26:02,284 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 10:26:02,284 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 20 [2018-04-12 10:26:02,285 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-12 10:26:02,285 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-12 10:26:02,285 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=373, Unknown=0, NotChecked=0, Total=420 [2018-04-12 10:26:02,285 INFO L87 Difference]: Start difference. First operand 80 states and 86 transitions. Second operand 21 states. [2018-04-12 10:26:03,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:26:03,155 INFO L93 Difference]: Finished difference Result 104 states and 115 transitions. [2018-04-12 10:26:03,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-12 10:26:03,155 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 26 [2018-04-12 10:26:03,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:26:03,156 INFO L225 Difference]: With dead ends: 104 [2018-04-12 10:26:03,156 INFO L226 Difference]: Without dead ends: 104 [2018-04-12 10:26:03,156 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=173, Invalid=949, Unknown=0, NotChecked=0, Total=1122 [2018-04-12 10:26:03,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-04-12 10:26:03,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 90. [2018-04-12 10:26:03,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2018-04-12 10:26:03,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 99 transitions. [2018-04-12 10:26:03,160 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 99 transitions. Word has length 26 [2018-04-12 10:26:03,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:26:03,161 INFO L459 AbstractCegarLoop]: Abstraction has 90 states and 99 transitions. [2018-04-12 10:26:03,161 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-12 10:26:03,161 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 99 transitions. [2018-04-12 10:26:03,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-04-12 10:26:03,161 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:26:03,161 INFO L355 BasicCegarLoop]: trace histogram [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] [2018-04-12 10:26:03,161 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]=== [2018-04-12 10:26:03,161 INFO L82 PathProgramCache]: Analyzing trace with hash 1803106191, now seen corresponding path program 1 times [2018-04-12 10:26:03,161 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:26:03,161 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:26:03,162 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:26:03,162 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:26:03,162 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:26:03,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:26:03,173 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:26:03,529 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:26:03,529 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-12 10:26:03,530 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-12 10:26:03,536 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:26:03,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:26:03,550 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 10:26:03,553 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 [2018-04-12 10:26:03,554 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 10:26:03,556 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:26:03,556 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-12 10:26:03,588 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:26:03,588 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:26:03,589 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 [2018-04-12 10:26:03,589 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 10:26:03,591 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:26:03,591 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:8 [2018-04-12 10:26:03,629 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 [2018-04-12 10:26:03,630 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 [2018-04-12 10:26:03,631 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:26:03,632 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:26:03,637 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. [2018-04-12 10:26:03,637 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:25 [2018-04-12 10:26:03,667 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 [2018-04-12 10:26:03,669 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 [2018-04-12 10:26:03,670 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:26:03,675 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:26:03,682 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. [2018-04-12 10:26:03,682 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:39, output treesize:35 [2018-04-12 10:26:03,860 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 [2018-04-12 10:26:03,869 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 [2018-04-12 10:26:03,869 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-12 10:26:03,879 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 [2018-04-12 10:26:03,880 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-12 10:26:03,882 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-12 10:26:03,891 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-12 10:26:03,891 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:52, output treesize:29 [2018-04-12 10:26:04,016 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:26:04,034 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 10:26:04,034 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 16] total 32 [2018-04-12 10:26:04,034 INFO L442 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-04-12 10:26:04,034 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-04-12 10:26:04,035 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=962, Unknown=0, NotChecked=0, Total=1056 [2018-04-12 10:26:04,035 INFO L87 Difference]: Start difference. First operand 90 states and 99 transitions. Second operand 33 states. [2018-04-12 10:26:05,475 WARN L151 SmtUtils]: Spent 731ms on a formula simplification. DAG size of input: 49 DAG size of output 39 [2018-04-12 10:26:05,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:26:05,786 INFO L93 Difference]: Finished difference Result 110 states and 123 transitions. [2018-04-12 10:26:05,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-12 10:26:05,786 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 26 [2018-04-12 10:26:05,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:26:05,787 INFO L225 Difference]: With dead ends: 110 [2018-04-12 10:26:05,787 INFO L226 Difference]: Without dead ends: 110 [2018-04-12 10:26:05,788 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=294, Invalid=2156, Unknown=0, NotChecked=0, Total=2450 [2018-04-12 10:26:05,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2018-04-12 10:26:05,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 105. [2018-04-12 10:26:05,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-04-12 10:26:05,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 119 transitions. [2018-04-12 10:26:05,793 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 119 transitions. Word has length 26 [2018-04-12 10:26:05,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:26:05,793 INFO L459 AbstractCegarLoop]: Abstraction has 105 states and 119 transitions. [2018-04-12 10:26:05,793 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-04-12 10:26:05,794 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 119 transitions. [2018-04-12 10:26:05,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-04-12 10:26:05,794 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:26:05,794 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 10:26:05,798 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]=== [2018-04-12 10:26:05,798 INFO L82 PathProgramCache]: Analyzing trace with hash 575850024, now seen corresponding path program 2 times [2018-04-12 10:26:05,798 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:26:05,798 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:26:05,799 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:26:05,799 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:26:05,799 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:26:05,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:26:05,813 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:26:06,078 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:26:06,078 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-12 10:26:06,079 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-12 10:26:06,087 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-12 10:26:06,111 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-12 10:26:06,111 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-12 10:26:06,113 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 10:26:06,116 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 [2018-04-12 10:26:06,116 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 10:26:06,119 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:26:06,119 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-12 10:26:06,154 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 16 treesize of output 13 [2018-04-12 10:26:06,156 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 [2018-04-12 10:26:06,156 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:26:06,157 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:26:06,173 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. [2018-04-12 10:26:06,173 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:23, output treesize:19 [2018-04-12 10:26:06,345 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 22 treesize of output 18 [2018-04-12 10:26:06,352 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 18 treesize of output 15 [2018-04-12 10:26:06,352 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-12 10:26:06,354 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-12 10:26:06,360 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-12 10:26:06,360 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:37 [2018-04-12 10:26:06,417 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:26:06,434 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 10:26:06,434 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2018-04-12 10:26:06,434 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-04-12 10:26:06,434 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-04-12 10:26:06,435 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2018-04-12 10:26:06,435 INFO L87 Difference]: Start difference. First operand 105 states and 119 transitions. Second operand 26 states. [2018-04-12 10:26:07,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:26:07,472 INFO L93 Difference]: Finished difference Result 122 states and 137 transitions. [2018-04-12 10:26:07,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-04-12 10:26:07,472 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 31 [2018-04-12 10:26:07,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:26:07,474 INFO L225 Difference]: With dead ends: 122 [2018-04-12 10:26:07,474 INFO L226 Difference]: Without dead ends: 122 [2018-04-12 10:26:07,474 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=272, Invalid=1534, Unknown=0, NotChecked=0, Total=1806 [2018-04-12 10:26:07,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2018-04-12 10:26:07,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 83. [2018-04-12 10:26:07,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-04-12 10:26:07,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 90 transitions. [2018-04-12 10:26:07,477 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 90 transitions. Word has length 31 [2018-04-12 10:26:07,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:26:07,477 INFO L459 AbstractCegarLoop]: Abstraction has 83 states and 90 transitions. [2018-04-12 10:26:07,477 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-04-12 10:26:07,477 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 90 transitions. [2018-04-12 10:26:07,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-04-12 10:26:07,478 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:26:07,478 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] [2018-04-12 10:26:07,478 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]=== [2018-04-12 10:26:07,478 INFO L82 PathProgramCache]: Analyzing trace with hash 1948171744, now seen corresponding path program 1 times [2018-04-12 10:26:07,478 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:26:07,478 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:26:07,479 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:26:07,479 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-12 10:26:07,479 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:26:07,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:26:07,488 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:26:07,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:26:07,539 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:26:07,539 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-12 10:26:07,539 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-12 10:26:07,539 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-12 10:26:07,539 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-12 10:26:07,540 INFO L87 Difference]: Start difference. First operand 83 states and 90 transitions. Second operand 6 states. [2018-04-12 10:26:07,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:26:07,594 INFO L93 Difference]: Finished difference Result 82 states and 89 transitions. [2018-04-12 10:26:07,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-12 10:26:07,595 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2018-04-12 10:26:07,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:26:07,595 INFO L225 Difference]: With dead ends: 82 [2018-04-12 10:26:07,595 INFO L226 Difference]: Without dead ends: 35 [2018-04-12 10:26:07,595 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-04-12 10:26:07,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-04-12 10:26:07,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-04-12 10:26:07,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-04-12 10:26:07,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2018-04-12 10:26:07,597 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 32 [2018-04-12 10:26:07,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:26:07,597 INFO L459 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2018-04-12 10:26:07,597 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-12 10:26:07,597 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2018-04-12 10:26:07,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-04-12 10:26:07,597 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:26:07,597 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 10:26:07,598 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]=== [2018-04-12 10:26:07,598 INFO L82 PathProgramCache]: Analyzing trace with hash -2133407846, now seen corresponding path program 2 times [2018-04-12 10:26:07,598 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:26:07,598 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:26:07,598 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:26:07,598 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:26:07,598 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:26:07,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:26:07,607 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:26:07,814 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:26:07,815 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-12 10:26:07,815 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-12 10:26:07,820 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-12 10:26:07,834 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-12 10:26:07,834 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-12 10:26:07,837 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 10:26:07,844 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 [2018-04-12 10:26:07,844 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 10:26:07,849 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 [2018-04-12 10:26:07,849 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:26:07,865 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:26:07,865 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-12 10:26:07,900 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:26:07,900 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:26:07,901 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 [2018-04-12 10:26:07,901 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 10:26:07,906 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 [2018-04-12 10:26:07,907 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:26:07,912 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:26:07,912 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:28, output treesize:21 [2018-04-12 10:26:07,945 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 16 treesize of output 13 [2018-04-12 10:26:07,947 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 [2018-04-12 10:26:07,947 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:26:07,948 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:26:07,953 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. [2018-04-12 10:26:07,954 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:35, output treesize:31 [2018-04-12 10:26:07,993 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 29 treesize of output 30 [2018-04-12 10:26:07,994 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 [2018-04-12 10:26:07,995 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:26:08,001 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:26:08,006 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. [2018-04-12 10:26:08,007 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:42, output treesize:38 [2018-04-12 10:26:08,565 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 [2018-04-12 10:26:08,570 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 18 treesize of output 15 [2018-04-12 10:26:08,570 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-12 10:26:08,577 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 21 treesize of output 13 [2018-04-12 10:26:08,578 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-12 10:26:08,582 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-12 10:26:08,595 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-12 10:26:08,595 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:66, output treesize:69 [2018-04-12 10:26:08,802 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:26:08,820 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 10:26:08,820 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 24] total 39 [2018-04-12 10:26:08,820 INFO L442 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-04-12 10:26:08,821 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-04-12 10:26:08,821 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1447, Unknown=0, NotChecked=0, Total=1560 [2018-04-12 10:26:08,821 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand 40 states. [2018-04-12 10:26:11,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:26:11,686 INFO L93 Difference]: Finished difference Result 60 states and 64 transitions. [2018-04-12 10:26:11,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-04-12 10:26:11,686 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 34 [2018-04-12 10:26:11,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:26:11,686 INFO L225 Difference]: With dead ends: 60 [2018-04-12 10:26:11,686 INFO L226 Difference]: Without dead ends: 0 [2018-04-12 10:26:11,688 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 924 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=534, Invalid=4722, Unknown=0, NotChecked=0, Total=5256 [2018-04-12 10:26:11,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-04-12 10:26:11,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-04-12 10:26:11,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-04-12 10:26:11,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-04-12 10:26:11,688 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2018-04-12 10:26:11,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:26:11,688 INFO L459 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-04-12 10:26:11,688 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-04-12 10:26:11,688 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-04-12 10:26:11,688 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-04-12 10:26:11,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.04 10:26:11 BoogieIcfgContainer [2018-04-12 10:26:11,691 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-12 10:26:11,692 INFO L168 Benchmark]: Toolchain (without parser) took 12796.70 ms. Allocated memory was 400.0 MB in the beginning and 813.7 MB in the end (delta: 413.7 MB). Free memory was 336.5 MB in the beginning and 594.7 MB in the end (delta: -258.2 MB). Peak memory consumption was 155.5 MB. Max. memory is 5.3 GB. [2018-04-12 10:26:11,693 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 400.0 MB. Free memory is still 361.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-12 10:26:11,693 INFO L168 Benchmark]: CACSL2BoogieTranslator took 232.15 ms. Allocated memory is still 400.0 MB. Free memory was 336.5 MB in the beginning and 312.8 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 5.3 GB. [2018-04-12 10:26:11,694 INFO L168 Benchmark]: Boogie Preprocessor took 37.94 ms. Allocated memory is still 400.0 MB. Free memory was 312.8 MB in the beginning and 310.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-04-12 10:26:11,694 INFO L168 Benchmark]: RCFGBuilder took 364.64 ms. Allocated memory was 400.0 MB in the beginning and 605.6 MB in the end (delta: 205.5 MB). Free memory was 310.1 MB in the beginning and 540.2 MB in the end (delta: -230.1 MB). Peak memory consumption was 24.2 MB. Max. memory is 5.3 GB. [2018-04-12 10:26:11,694 INFO L168 Benchmark]: TraceAbstraction took 12159.17 ms. Allocated memory was 605.6 MB in the beginning and 813.7 MB in the end (delta: 208.1 MB). Free memory was 540.2 MB in the beginning and 594.7 MB in the end (delta: -54.5 MB). Peak memory consumption was 153.6 MB. Max. memory is 5.3 GB. [2018-04-12 10:26:11,696 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 400.0 MB. Free memory is still 361.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 232.15 ms. Allocated memory is still 400.0 MB. Free memory was 336.5 MB in the beginning and 312.8 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 37.94 ms. Allocated memory is still 400.0 MB. Free memory was 312.8 MB in the beginning and 310.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 364.64 ms. Allocated memory was 400.0 MB in the beginning and 605.6 MB in the end (delta: 205.5 MB). Free memory was 310.1 MB in the beginning and 540.2 MB in the end (delta: -230.1 MB). Peak memory consumption was 24.2 MB. Max. memory is 5.3 GB. * TraceAbstraction took 12159.17 ms. Allocated memory was 605.6 MB in the beginning and 813.7 MB in the end (delta: 208.1 MB). Free memory was 540.2 MB in the beginning and 594.7 MB in the end (delta: -54.5 MB). Peak memory consumption was 153.6 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 564]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 563]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 564]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 552]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 563]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 9 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 51 locations, 9 error locations. SAFE Result, 12.1s OverallTime, 15 OverallIterations, 3 TraceHistogramMax, 7.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 443 SDtfs, 1133 SDslu, 2414 SDs, 0 SdLazy, 2807 SolverSat, 343 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 375 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 293 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1865 ImplicationChecksByTransitivity, 8.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 15 MinimizatonAttempts, 98 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 450 NumberOfCodeBlocks, 450 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 431 ConstructedInterpolants, 45 QuantifiedInterpolants, 130357 SizeOfPredicates, 65 NumberOfNonLiveVariables, 615 ConjunctsInSsa, 189 ConjunctsInUnsatCore, 19 InterpolantComputations, 11 PerfectInterpolantSequences, 9/54 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-12_10-26-11-702.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-12_10-26-11-702.csv Received shutdown request...