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 0.1.23-666feb3-m [2018-04-11 10:04:18,355 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-11 10:04:18,356 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-11 10:04:18,368 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-11 10:04:18,368 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-11 10:04:18,369 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-11 10:04:18,369 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-11 10:04:18,371 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-11 10:04:18,372 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-11 10:04:18,373 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-11 10:04:18,373 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-11 10:04:18,374 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-11 10:04:18,374 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-11 10:04:18,375 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-11 10:04:18,376 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-11 10:04:18,377 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-11 10:04:18,379 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-11 10:04:18,380 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-11 10:04:18,381 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-11 10:04:18,382 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-11 10:04:18,383 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-11 10:04:18,384 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-11 10:04:18,384 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-11 10:04:18,385 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-11 10:04:18,385 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-11 10:04:18,386 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-11 10:04:18,386 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-11 10:04:18,387 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-11 10:04:18,387 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-11 10:04:18,387 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-11 10:04:18,388 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-11 10:04:18,388 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 [2018-04-11 10:04:18,409 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-11 10:04:18,410 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-11 10:04:18,411 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-11 10:04:18,411 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-11 10:04:18,411 INFO L133 SettingsManager]: * Use SBE=true [2018-04-11 10:04:18,411 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-11 10:04:18,411 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-11 10:04:18,411 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-11 10:04:18,411 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-11 10:04:18,412 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-11 10:04:18,412 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-11 10:04:18,412 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-11 10:04:18,412 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-11 10:04:18,412 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-11 10:04:18,412 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-11 10:04:18,412 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-11 10:04:18,413 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-11 10:04:18,413 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-11 10:04:18,413 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-11 10:04:18,413 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 10:04:18,413 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-11 10:04:18,413 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-11 10:04:18,413 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-11 10:04:18,414 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-04-11 10:04:18,442 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-11 10:04:18,453 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-11 10:04:18,456 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-11 10:04:18,458 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-11 10:04:18,458 INFO L276 PluginConnector]: CDTParser initialized [2018-04-11 10:04:18,459 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 [2018-04-11 10:04:18,780 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG6d54c6087 [2018-04-11 10:04:18,918 INFO L287 CDTParser]: IsIndexed: true [2018-04-11 10:04:18,918 INFO L288 CDTParser]: Found 1 translation units. [2018-04-11 10:04:18,918 INFO L168 CDTParser]: Scanning openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:18,925 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-11 10:04:18,926 INFO L215 ultiparseSymbolTable]: [2018-04-11 10:04:18,926 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-11 10:04:18,926 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 [2018-04-11 10:04:18,926 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:18,926 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 [2018-04-11 10:04:18,926 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 [2018-04-11 10:04:18,926 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-11 10:04:18,926 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 [2018-04-11 10:04:18,926 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 [2018-04-11 10:04:18,926 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 [2018-04-11 10:04:18,927 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 [2018-04-11 10:04:18,927 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 [2018-04-11 10:04:18,927 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 [2018-04-11 10:04:18,927 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 [2018-04-11 10:04:18,927 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 [2018-04-11 10:04:18,927 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 [2018-04-11 10:04:18,927 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 [2018-04-11 10:04:18,927 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 [2018-04-11 10:04:18,927 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 [2018-04-11 10:04:18,928 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 [2018-04-11 10:04:18,928 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 [2018-04-11 10:04:18,928 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 [2018-04-11 10:04:18,928 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 [2018-04-11 10:04:18,928 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 [2018-04-11 10:04:18,928 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 [2018-04-11 10:04:18,928 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 [2018-04-11 10:04:18,928 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 [2018-04-11 10:04:18,928 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 [2018-04-11 10:04:18,928 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 [2018-04-11 10:04:18,929 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 [2018-04-11 10:04:18,929 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 [2018-04-11 10:04:18,929 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 [2018-04-11 10:04:18,929 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 [2018-04-11 10:04:18,929 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 [2018-04-11 10:04:18,929 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 [2018-04-11 10:04:18,929 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 [2018-04-11 10:04:18,929 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 [2018-04-11 10:04:18,929 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 [2018-04-11 10:04:18,929 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 [2018-04-11 10:04:18,930 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 [2018-04-11 10:04:18,930 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 [2018-04-11 10:04:18,930 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 [2018-04-11 10:04:18,930 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 [2018-04-11 10:04:18,930 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 [2018-04-11 10:04:18,930 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 [2018-04-11 10:04:18,930 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 [2018-04-11 10:04:18,930 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 [2018-04-11 10:04:18,930 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 [2018-04-11 10:04:18,930 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 [2018-04-11 10:04:18,931 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 [2018-04-11 10:04:18,931 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 [2018-04-11 10:04:18,931 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 [2018-04-11 10:04:18,931 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 [2018-04-11 10:04:18,931 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 [2018-04-11 10:04:18,931 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 [2018-04-11 10:04:18,931 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 [2018-04-11 10:04:18,931 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 [2018-04-11 10:04:18,931 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 [2018-04-11 10:04:18,931 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 [2018-04-11 10:04:18,931 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 [2018-04-11 10:04:18,932 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 [2018-04-11 10:04:18,932 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 [2018-04-11 10:04:18,932 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 [2018-04-11 10:04:18,932 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 [2018-04-11 10:04:18,932 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 [2018-04-11 10:04:18,932 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 [2018-04-11 10:04:18,932 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 [2018-04-11 10:04:18,932 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 [2018-04-11 10:04:18,932 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 [2018-04-11 10:04:18,932 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 [2018-04-11 10:04:18,932 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 [2018-04-11 10:04:18,933 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 [2018-04-11 10:04:18,933 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 [2018-04-11 10:04:18,933 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 [2018-04-11 10:04:18,933 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 [2018-04-11 10:04:18,933 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 [2018-04-11 10:04:18,933 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 [2018-04-11 10:04:18,933 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 [2018-04-11 10:04:18,933 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 [2018-04-11 10:04:18,933 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 [2018-04-11 10:04:18,933 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 [2018-04-11 10:04:18,933 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 [2018-04-11 10:04:18,934 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 [2018-04-11 10:04:18,934 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 [2018-04-11 10:04:18,934 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 [2018-04-11 10:04:18,934 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 [2018-04-11 10:04:18,934 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 [2018-04-11 10:04:18,934 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 [2018-04-11 10:04:18,934 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 [2018-04-11 10:04:18,934 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 [2018-04-11 10:04:18,934 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 [2018-04-11 10:04:18,934 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 [2018-04-11 10:04:18,934 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 [2018-04-11 10:04:18,934 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 [2018-04-11 10:04:18,935 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 [2018-04-11 10:04:18,935 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 [2018-04-11 10:04:18,935 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 [2018-04-11 10:04:18,935 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 [2018-04-11 10:04:18,935 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 [2018-04-11 10:04:18,935 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 [2018-04-11 10:04:18,935 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 [2018-04-11 10:04:18,935 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 [2018-04-11 10:04:18,935 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 [2018-04-11 10:04:18,935 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 [2018-04-11 10:04:18,935 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 [2018-04-11 10:04:18,935 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 [2018-04-11 10:04:18,936 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 [2018-04-11 10:04:18,936 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 [2018-04-11 10:04:18,936 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 [2018-04-11 10:04:18,936 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 [2018-04-11 10:04:18,936 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 [2018-04-11 10:04:18,936 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 [2018-04-11 10:04:18,936 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 [2018-04-11 10:04:18,936 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 [2018-04-11 10:04:18,936 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 [2018-04-11 10:04:18,936 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 [2018-04-11 10:04:18,936 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 [2018-04-11 10:04:18,936 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 [2018-04-11 10:04:18,937 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 [2018-04-11 10:04:18,937 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 [2018-04-11 10:04:18,937 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 [2018-04-11 10:04:18,937 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 [2018-04-11 10:04:18,937 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 [2018-04-11 10:04:18,937 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 [2018-04-11 10:04:18,937 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 [2018-04-11 10:04:18,937 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 [2018-04-11 10:04:18,937 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 [2018-04-11 10:04:18,950 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG6d54c6087 [2018-04-11 10:04:18,953 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-11 10:04:18,954 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-11 10:04:18,954 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-11 10:04:18,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-11 10:04:18,958 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-11 10:04:18,958 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 10:04:18" (1/1) ... [2018-04-11 10:04:18,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5867e774 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:04:18, skipping insertion in model container [2018-04-11 10:04:18,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 10:04:18" (1/1) ... [2018-04-11 10:04:18,971 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 10:04:18,992 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 10:04:19,108 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 10:04:19,142 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 10:04:19,148 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 112 non ball SCCs. Number of states in SCCs 112. [2018-04-11 10:04:19,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:04:19 WrapperNode [2018-04-11 10:04:19,176 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-11 10:04:19,176 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-11 10:04:19,177 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-11 10:04:19,177 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-11 10:04:19,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:04:19" (1/1) ... [2018-04-11 10:04:19,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:04:19" (1/1) ... [2018-04-11 10:04:19,195 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:04:19" (1/1) ... [2018-04-11 10:04:19,195 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:04:19" (1/1) ... [2018-04-11 10:04:19,204 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:04:19" (1/1) ... [2018-04-11 10:04:19,208 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:04:19" (1/1) ... [2018-04-11 10:04:19,210 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:04:19" (1/1) ... [2018-04-11 10:04:19,213 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-11 10:04:19,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-11 10:04:19,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-11 10:04:19,213 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-11 10:04:19,214 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:04:19" (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 [2018-04-11 10:04:19,302 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-11 10:04:19,302 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-11 10:04:19,302 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-11 10:04:19,302 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-11 10:04:19,302 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspn [2018-04-11 10:04:19,302 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-11 10:04:19,302 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-11 10:04:19,303 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-11 10:04:19,303 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-11 10:04:19,303 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-11 10:04:19,303 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-11 10:04:19,303 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-11 10:04:19,303 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-11 10:04:19,303 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-11 10:04:19,303 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-11 10:04:19,303 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-11 10:04:19,303 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-11 10:04:19,303 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-11 10:04:19,303 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-11 10:04:19,303 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-11 10:04:19,303 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-11 10:04:19,303 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-11 10:04:19,303 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-11 10:04:19,303 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-11 10:04:19,304 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-11 10:04:19,304 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-11 10:04:19,304 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-11 10:04:19,304 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-11 10:04:19,304 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-11 10:04:19,304 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-11 10:04:19,304 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-11 10:04:19,304 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-11 10:04:19,304 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-11 10:04:19,304 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-11 10:04:19,304 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-11 10:04:19,304 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-11 10:04:19,304 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-11 10:04:19,304 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-11 10:04:19,304 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-11 10:04:19,304 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-11 10:04:19,304 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-11 10:04:19,304 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-11 10:04:19,304 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-11 10:04:19,305 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-11 10:04:19,305 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-11 10:04:19,305 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-11 10:04:19,305 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-11 10:04:19,305 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-11 10:04:19,305 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-11 10:04:19,305 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-11 10:04:19,305 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-11 10:04:19,305 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-11 10:04:19,305 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-11 10:04:19,305 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-11 10:04:19,305 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-11 10:04:19,305 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-11 10:04:19,305 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-11 10:04:19,305 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-11 10:04:19,305 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-11 10:04:19,305 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-11 10:04:19,305 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-11 10:04:19,306 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-11 10:04:19,306 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-11 10:04:19,306 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-11 10:04:19,306 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-11 10:04:19,306 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-11 10:04:19,306 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-11 10:04:19,306 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-11 10:04:19,306 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-11 10:04:19,306 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-11 10:04:19,306 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-11 10:04:19,306 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-11 10:04:19,306 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-11 10:04:19,306 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-11 10:04:19,306 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-11 10:04:19,306 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-11 10:04:19,306 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-11 10:04:19,306 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-11 10:04:19,306 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-11 10:04:19,307 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-11 10:04:19,307 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-11 10:04:19,307 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-11 10:04:19,307 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-11 10:04:19,307 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-11 10:04:19,307 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-11 10:04:19,307 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-11 10:04:19,307 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-11 10:04:19,307 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-11 10:04:19,307 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-11 10:04:19,307 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-11 10:04:19,307 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-11 10:04:19,307 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-11 10:04:19,307 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-11 10:04:19,307 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-11 10:04:19,307 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-11 10:04:19,307 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-11 10:04:19,307 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-11 10:04:19,307 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-11 10:04:19,308 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-11 10:04:19,308 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-11 10:04:19,308 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-11 10:04:19,308 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-11 10:04:19,308 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-11 10:04:19,308 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-11 10:04:19,308 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-11 10:04:19,308 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-11 10:04:19,308 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-11 10:04:19,308 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-11 10:04:19,308 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-11 10:04:19,308 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspn [2018-04-11 10:04:19,308 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-11 10:04:19,308 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-11 10:04:19,308 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-11 10:04:19,308 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-11 10:04:19,308 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-11 10:04:19,308 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-11 10:04:19,309 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-11 10:04:19,309 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-11 10:04:19,584 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-11 10:04:19,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 10:04:19 BoogieIcfgContainer [2018-04-11 10:04:19,585 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-11 10:04:19,586 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-11 10:04:19,586 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-11 10:04:19,588 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-11 10:04:19,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.04 10:04:18" (1/3) ... [2018-04-11 10:04:19,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bdf17a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 10:04:19, skipping insertion in model container [2018-04-11 10:04:19,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:04:19" (2/3) ... [2018-04-11 10:04:19,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bdf17a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 10:04:19, skipping insertion in model container [2018-04-11 10:04:19,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 10:04:19" (3/3) ... [2018-04-11 10:04:19,591 INFO L107 eAbstractionObserver]: Analyzing ICFG openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:19,597 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-11 10:04:19,603 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-04-11 10:04:19,627 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-11 10:04:19,628 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-11 10:04:19,628 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-11 10:04:19,628 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-11 10:04:19,628 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-11 10:04:19,628 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-11 10:04:19,628 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-11 10:04:19,628 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-11 10:04:19,628 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-11 10:04:19,629 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-11 10:04:19,638 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2018-04-11 10:04:19,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-11 10:04:19,644 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:04:19,645 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:04:19,645 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]=== [2018-04-11 10:04:19,647 INFO L82 PathProgramCache]: Analyzing trace with hash -376792556, now seen corresponding path program 1 times [2018-04-11 10:04:19,648 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:04:19,649 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:04:19,677 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:19,677 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:04:19,678 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:19,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:04:19,719 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:04:19,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:04:19,787 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:04:19,788 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 10:04:19,789 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 10:04:19,801 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 10:04:19,801 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 10:04:19,803 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 4 states. [2018-04-11 10:04:19,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:04:19,847 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2018-04-11 10:04:19,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-11 10:04:19,848 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-04-11 10:04:19,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:04:19,855 INFO L225 Difference]: With dead ends: 44 [2018-04-11 10:04:19,856 INFO L226 Difference]: Without dead ends: 41 [2018-04-11 10:04:19,857 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 [2018-04-11 10:04:19,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-04-11 10:04:19,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-04-11 10:04:19,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-04-11 10:04:19,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2018-04-11 10:04:19,881 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 13 [2018-04-11 10:04:19,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:04:19,881 INFO L459 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2018-04-11 10:04:19,881 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 10:04:19,881 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2018-04-11 10:04:19,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-11 10:04:19,881 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:04:19,882 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:04:19,882 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]=== [2018-04-11 10:04:19,882 INFO L82 PathProgramCache]: Analyzing trace with hash -376792555, now seen corresponding path program 1 times [2018-04-11 10:04:19,882 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:04:19,882 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:04:19,883 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:19,883 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:04:19,883 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:19,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:04:19,898 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:04:19,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:04:19,971 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:04:19,971 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 10:04:19,972 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 10:04:19,972 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 10:04:19,972 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-04-11 10:04:19,972 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand 6 states. [2018-04-11 10:04:20,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:04:20,049 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2018-04-11 10:04:20,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 10:04:20,050 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-04-11 10:04:20,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:04:20,050 INFO L225 Difference]: With dead ends: 40 [2018-04-11 10:04:20,050 INFO L226 Difference]: Without dead ends: 40 [2018-04-11 10:04:20,051 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 [2018-04-11 10:04:20,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-04-11 10:04:20,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-04-11 10:04:20,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-04-11 10:04:20,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2018-04-11 10:04:20,053 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 13 [2018-04-11 10:04:20,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:04:20,054 INFO L459 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2018-04-11 10:04:20,054 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 10:04:20,054 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2018-04-11 10:04:20,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-11 10:04:20,054 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:04:20,054 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:04:20,054 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]=== [2018-04-11 10:04:20,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1204332646, now seen corresponding path program 1 times [2018-04-11 10:04:20,055 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:04:20,055 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:04:20,055 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:20,055 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:04:20,055 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:20,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:04:20,063 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:04:20,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:04:20,079 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:04:20,079 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 10:04:20,079 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 10:04:20,079 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 10:04:20,080 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 10:04:20,080 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand 4 states. [2018-04-11 10:04:20,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:04:20,107 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2018-04-11 10:04:20,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-11 10:04:20,108 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-04-11 10:04:20,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:04:20,108 INFO L225 Difference]: With dead ends: 39 [2018-04-11 10:04:20,108 INFO L226 Difference]: Without dead ends: 39 [2018-04-11 10:04:20,109 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 [2018-04-11 10:04:20,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-04-11 10:04:20,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-04-11 10:04:20,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-04-11 10:04:20,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2018-04-11 10:04:20,111 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 14 [2018-04-11 10:04:20,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:04:20,111 INFO L459 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2018-04-11 10:04:20,111 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 10:04:20,111 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2018-04-11 10:04:20,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-11 10:04:20,111 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:04:20,111 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:04:20,111 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]=== [2018-04-11 10:04:20,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1204332647, now seen corresponding path program 1 times [2018-04-11 10:04:20,112 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:04:20,112 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:04:20,112 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:20,112 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:04:20,112 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:20,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:04:20,122 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:04:20,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:04:20,164 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:04:20,164 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 10:04:20,164 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 10:04:20,165 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 10:04:20,165 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-11 10:04:20,165 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand 5 states. [2018-04-11 10:04:20,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:04:20,192 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2018-04-11 10:04:20,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 10:04:20,192 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-04-11 10:04:20,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:04:20,193 INFO L225 Difference]: With dead ends: 38 [2018-04-11 10:04:20,195 INFO L226 Difference]: Without dead ends: 38 [2018-04-11 10:04:20,195 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 [2018-04-11 10:04:20,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-04-11 10:04:20,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-04-11 10:04:20,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-04-11 10:04:20,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2018-04-11 10:04:20,199 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 14 [2018-04-11 10:04:20,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:04:20,199 INFO L459 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2018-04-11 10:04:20,199 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 10:04:20,199 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2018-04-11 10:04:20,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-04-11 10:04:20,200 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:04:20,200 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:04:20,200 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]=== [2018-04-11 10:04:20,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1759820867, now seen corresponding path program 1 times [2018-04-11 10:04:20,200 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:04:20,200 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:04:20,201 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:20,201 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:04:20,201 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:20,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:04:20,215 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:04:20,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:04:20,249 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:04:20,251 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 10:04:20,251 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 10:04:20,251 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 10:04:20,252 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-11 10:04:20,252 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand 6 states. [2018-04-11 10:04:20,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:04:20,315 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2018-04-11 10:04:20,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 10:04:20,315 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2018-04-11 10:04:20,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:04:20,315 INFO L225 Difference]: With dead ends: 37 [2018-04-11 10:04:20,315 INFO L226 Difference]: Without dead ends: 37 [2018-04-11 10:04:20,316 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 [2018-04-11 10:04:20,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-04-11 10:04:20,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-04-11 10:04:20,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-04-11 10:04:20,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2018-04-11 10:04:20,318 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 18 [2018-04-11 10:04:20,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:04:20,318 INFO L459 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2018-04-11 10:04:20,319 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 10:04:20,319 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2018-04-11 10:04:20,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-04-11 10:04:20,319 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:04:20,319 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:04:20,319 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]=== [2018-04-11 10:04:20,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1759820868, now seen corresponding path program 1 times [2018-04-11 10:04:20,320 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:04:20,320 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:04:20,320 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:20,320 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:04:20,321 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:20,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:04:20,330 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:04:20,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:04:20,413 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:04:20,413 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-04-11 10:04:20,414 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-11 10:04:20,414 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-11 10:04:20,414 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-04-11 10:04:20,414 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand 9 states. [2018-04-11 10:04:20,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:04:20,528 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2018-04-11 10:04:20,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-11 10:04:20,528 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2018-04-11 10:04:20,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:04:20,528 INFO L225 Difference]: With dead ends: 40 [2018-04-11 10:04:20,529 INFO L226 Difference]: Without dead ends: 40 [2018-04-11 10:04:20,529 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 [2018-04-11 10:04:20,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-04-11 10:04:20,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2018-04-11 10:04:20,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-04-11 10:04:20,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2018-04-11 10:04:20,531 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 18 [2018-04-11 10:04:20,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:04:20,531 INFO L459 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2018-04-11 10:04:20,531 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-11 10:04:20,531 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2018-04-11 10:04:20,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-04-11 10:04:20,531 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:04:20,531 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] [2018-04-11 10:04:20,532 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]=== [2018-04-11 10:04:20,532 INFO L82 PathProgramCache]: Analyzing trace with hash -1842322422, now seen corresponding path program 1 times [2018-04-11 10:04:20,532 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:04:20,532 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:04:20,532 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:20,532 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:04:20,532 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:20,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:04:20,542 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:04:20,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:04:20,614 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:04:20,615 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-04-11 10:04:20,615 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-11 10:04:20,615 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-11 10:04:20,615 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-04-11 10:04:20,615 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand 10 states. [2018-04-11 10:04:20,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:04:20,710 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2018-04-11 10:04:20,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-11 10:04:20,710 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 21 [2018-04-11 10:04:20,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:04:20,711 INFO L225 Difference]: With dead ends: 44 [2018-04-11 10:04:20,711 INFO L226 Difference]: Without dead ends: 44 [2018-04-11 10:04:20,711 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 [2018-04-11 10:04:20,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-04-11 10:04:20,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 41. [2018-04-11 10:04:20,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-04-11 10:04:20,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2018-04-11 10:04:20,713 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 21 [2018-04-11 10:04:20,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:04:20,713 INFO L459 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2018-04-11 10:04:20,713 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-11 10:04:20,714 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2018-04-11 10:04:20,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-04-11 10:04:20,714 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:04:20,714 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] [2018-04-11 10:04:20,714 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]=== [2018-04-11 10:04:20,714 INFO L82 PathProgramCache]: Analyzing trace with hash -1842322423, now seen corresponding path program 1 times [2018-04-11 10:04:20,715 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:04:20,715 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:04:20,715 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:20,715 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:04:20,715 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:20,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:04:20,722 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:04:20,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:04:20,749 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:04:20,749 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-11 10:04:20,750 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-11 10:04:20,750 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-11 10:04:20,750 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-11 10:04:20,750 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand 7 states. [2018-04-11 10:04:20,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:04:20,809 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2018-04-11 10:04:20,809 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-11 10:04:20,809 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-04-11 10:04:20,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:04:20,810 INFO L225 Difference]: With dead ends: 41 [2018-04-11 10:04:20,810 INFO L226 Difference]: Without dead ends: 41 [2018-04-11 10:04:20,810 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 [2018-04-11 10:04:20,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-04-11 10:04:20,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2018-04-11 10:04:20,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-04-11 10:04:20,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2018-04-11 10:04:20,812 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 21 [2018-04-11 10:04:20,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:04:20,812 INFO L459 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2018-04-11 10:04:20,812 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-11 10:04:20,812 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2018-04-11 10:04:20,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-04-11 10:04:20,812 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:04:20,812 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] [2018-04-11 10:04:20,812 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]=== [2018-04-11 10:04:20,813 INFO L82 PathProgramCache]: Analyzing trace with hash 14731087, now seen corresponding path program 1 times [2018-04-11 10:04:20,813 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:04:20,813 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:04:20,813 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:20,813 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:04:20,813 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:20,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:04:20,822 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:04:21,018 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:04:21,018 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:04:21,018 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-04-11 10:04:21,019 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-04-11 10:04:21,019 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-04-11 10:04:21,019 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2018-04-11 10:04:21,019 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand 14 states. [2018-04-11 10:04:21,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:04:21,265 INFO L93 Difference]: Finished difference Result 72 states and 76 transitions. [2018-04-11 10:04:21,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-11 10:04:21,266 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 26 [2018-04-11 10:04:21,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:04:21,266 INFO L225 Difference]: With dead ends: 72 [2018-04-11 10:04:21,266 INFO L226 Difference]: Without dead ends: 72 [2018-04-11 10:04:21,267 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 [2018-04-11 10:04:21,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-04-11 10:04:21,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 62. [2018-04-11 10:04:21,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-04-11 10:04:21,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 68 transitions. [2018-04-11 10:04:21,272 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 68 transitions. Word has length 26 [2018-04-11 10:04:21,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:04:21,272 INFO L459 AbstractCegarLoop]: Abstraction has 62 states and 68 transitions. [2018-04-11 10:04:21,272 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-04-11 10:04:21,272 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 68 transitions. [2018-04-11 10:04:21,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-04-11 10:04:21,273 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:04:21,273 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] [2018-04-11 10:04:21,275 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]=== [2018-04-11 10:04:21,275 INFO L82 PathProgramCache]: Analyzing trace with hash 14733265, now seen corresponding path program 1 times [2018-04-11 10:04:21,275 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:04:21,275 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:04:21,276 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:21,276 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:04:21,276 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:21,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:04:21,292 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:04:21,448 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:04:21,448 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:04:21,448 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-04-11 10:04:21,449 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-11 10:04:21,449 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-11 10:04:21,449 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2018-04-11 10:04:21,449 INFO L87 Difference]: Start difference. First operand 62 states and 68 transitions. Second operand 12 states. [2018-04-11 10:04:21,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:04:21,635 INFO L93 Difference]: Finished difference Result 105 states and 110 transitions. [2018-04-11 10:04:21,635 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-04-11 10:04:21,635 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 26 [2018-04-11 10:04:21,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:04:21,638 INFO L225 Difference]: With dead ends: 105 [2018-04-11 10:04:21,638 INFO L226 Difference]: Without dead ends: 105 [2018-04-11 10:04:21,638 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 [2018-04-11 10:04:21,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2018-04-11 10:04:21,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 80. [2018-04-11 10:04:21,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-04-11 10:04:21,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 86 transitions. [2018-04-11 10:04:21,642 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 86 transitions. Word has length 26 [2018-04-11 10:04:21,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:04:21,643 INFO L459 AbstractCegarLoop]: Abstraction has 80 states and 86 transitions. [2018-04-11 10:04:21,643 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-11 10:04:21,643 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 86 transitions. [2018-04-11 10:04:21,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-04-11 10:04:21,643 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:04:21,643 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] [2018-04-11 10:04:21,643 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]=== [2018-04-11 10:04:21,644 INFO L82 PathProgramCache]: Analyzing trace with hash -1674210477, now seen corresponding path program 1 times [2018-04-11 10:04:21,644 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:04:21,644 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:04:21,645 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:21,645 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:04:21,645 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:21,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:04:21,656 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:04:21,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:04:21,816 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:04:21,816 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 [2018-04-11 10:04:21,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:04:21,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:04:21,857 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:04:21,907 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 [2018-04-11 10:04:21,910 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 [2018-04-11 10:04:21,910 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:04:21,911 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:04:21,915 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. [2018-04-11 10:04:21,915 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:21 [2018-04-11 10:04:22,052 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 [2018-04-11 10:04:22,060 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 [2018-04-11 10:04:22,061 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 10:04:22,065 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 10:04:22,077 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 10:04:22,077 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:38, output treesize:29 [2018-04-11 10:04:22,160 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:04:22,186 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 10:04:22,186 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 20 [2018-04-11 10:04:22,186 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-11 10:04:22,186 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-11 10:04:22,187 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=373, Unknown=0, NotChecked=0, Total=420 [2018-04-11 10:04:22,187 INFO L87 Difference]: Start difference. First operand 80 states and 86 transitions. Second operand 21 states. [2018-04-11 10:04:22,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:04:22,937 INFO L93 Difference]: Finished difference Result 104 states and 115 transitions. [2018-04-11 10:04:22,938 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-11 10:04:22,938 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 26 [2018-04-11 10:04:22,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:04:22,938 INFO L225 Difference]: With dead ends: 104 [2018-04-11 10:04:22,938 INFO L226 Difference]: Without dead ends: 104 [2018-04-11 10:04:22,939 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=173, Invalid=949, Unknown=0, NotChecked=0, Total=1122 [2018-04-11 10:04:22,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-04-11 10:04:22,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 90. [2018-04-11 10:04:22,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2018-04-11 10:04:22,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 99 transitions. [2018-04-11 10:04:22,943 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 99 transitions. Word has length 26 [2018-04-11 10:04:22,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:04:22,943 INFO L459 AbstractCegarLoop]: Abstraction has 90 states and 99 transitions. [2018-04-11 10:04:22,943 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-11 10:04:22,943 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 99 transitions. [2018-04-11 10:04:22,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-04-11 10:04:22,944 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:04:22,944 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] [2018-04-11 10:04:22,944 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]=== [2018-04-11 10:04:22,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1803106191, now seen corresponding path program 1 times [2018-04-11 10:04:22,944 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:04:22,944 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:04:22,945 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:22,945 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:04:22,945 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:22,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:04:22,957 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:04:23,334 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:04:23,335 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:04:23,335 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 [2018-04-11 10:04:23,340 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:04:23,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:04:23,355 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:04:23,358 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 [2018-04-11 10:04:23,358 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:04:23,363 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:04:23,364 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 10:04:23,395 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:04:23,396 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:04:23,396 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 [2018-04-11 10:04:23,396 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:04:23,398 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:04:23,398 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:8 [2018-04-11 10:04:23,439 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 [2018-04-11 10:04:23,451 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 [2018-04-11 10:04:23,452 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:04:23,453 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:04:23,457 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. [2018-04-11 10:04:23,457 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:25 [2018-04-11 10:04:23,486 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 [2018-04-11 10:04:23,488 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 [2018-04-11 10:04:23,488 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:04:23,491 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:04:23,497 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. [2018-04-11 10:04:23,497 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:39, output treesize:35 [2018-04-11 10:04:23,699 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2018-04-11 10:04:23,708 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 [2018-04-11 10:04:23,708 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 10:04:23,714 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 [2018-04-11 10:04:23,714 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 10:04:23,716 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 10:04:23,724 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 10:04:23,724 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:52, output treesize:29 [2018-04-11 10:04:23,844 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:04:23,863 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 10:04:23,863 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 16] total 32 [2018-04-11 10:04:23,863 INFO L442 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-04-11 10:04:23,863 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-04-11 10:04:23,864 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=962, Unknown=0, NotChecked=0, Total=1056 [2018-04-11 10:04:23,864 INFO L87 Difference]: Start difference. First operand 90 states and 99 transitions. Second operand 33 states. [2018-04-11 10:04:25,239 WARN L151 SmtUtils]: Spent 707ms on a formula simplification. DAG size of input: 49 DAG size of output 39 [2018-04-11 10:04:25,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:04:25,545 INFO L93 Difference]: Finished difference Result 110 states and 123 transitions. [2018-04-11 10:04:25,545 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-11 10:04:25,546 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 26 [2018-04-11 10:04:25,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:04:25,546 INFO L225 Difference]: With dead ends: 110 [2018-04-11 10:04:25,546 INFO L226 Difference]: Without dead ends: 110 [2018-04-11 10:04:25,547 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=294, Invalid=2156, Unknown=0, NotChecked=0, Total=2450 [2018-04-11 10:04:25,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2018-04-11 10:04:25,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 105. [2018-04-11 10:04:25,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-04-11 10:04:25,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 119 transitions. [2018-04-11 10:04:25,551 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 119 transitions. Word has length 26 [2018-04-11 10:04:25,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:04:25,551 INFO L459 AbstractCegarLoop]: Abstraction has 105 states and 119 transitions. [2018-04-11 10:04:25,552 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-04-11 10:04:25,553 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 119 transitions. [2018-04-11 10:04:25,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-04-11 10:04:25,554 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:04:25,554 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] [2018-04-11 10:04:25,554 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]=== [2018-04-11 10:04:25,554 INFO L82 PathProgramCache]: Analyzing trace with hash 575850024, now seen corresponding path program 2 times [2018-04-11 10:04:25,554 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:04:25,554 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:04:25,555 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:25,555 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:04:25,555 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:25,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:04:25,579 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:04:25,807 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:04:25,807 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:04:25,808 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 [2018-04-11 10:04:25,812 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 10:04:25,831 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 10:04:25,831 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 10:04:25,833 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:04:25,836 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 [2018-04-11 10:04:25,836 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:04:25,838 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:04:25,838 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 10:04:25,900 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 [2018-04-11 10:04:25,901 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 [2018-04-11 10:04:25,901 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:04:25,902 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:04:25,905 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. [2018-04-11 10:04:25,906 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:23, output treesize:19 [2018-04-11 10:04:26,087 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2018-04-11 10:04:26,092 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 [2018-04-11 10:04:26,092 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 10:04:26,095 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 10:04:26,101 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 10:04:26,101 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:37 [2018-04-11 10:04:26,164 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:04:26,181 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 10:04:26,181 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2018-04-11 10:04:26,181 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-04-11 10:04:26,181 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-04-11 10:04:26,182 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2018-04-11 10:04:26,182 INFO L87 Difference]: Start difference. First operand 105 states and 119 transitions. Second operand 26 states. [2018-04-11 10:04:27,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:04:27,234 INFO L93 Difference]: Finished difference Result 122 states and 137 transitions. [2018-04-11 10:04:27,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-04-11 10:04:27,234 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 31 [2018-04-11 10:04:27,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:04:27,236 INFO L225 Difference]: With dead ends: 122 [2018-04-11 10:04:27,236 INFO L226 Difference]: Without dead ends: 122 [2018-04-11 10:04:27,236 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 [2018-04-11 10:04:27,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2018-04-11 10:04:27,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 83. [2018-04-11 10:04:27,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-04-11 10:04:27,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 90 transitions. [2018-04-11 10:04:27,241 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 90 transitions. Word has length 31 [2018-04-11 10:04:27,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:04:27,242 INFO L459 AbstractCegarLoop]: Abstraction has 83 states and 90 transitions. [2018-04-11 10:04:27,242 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-04-11 10:04:27,242 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 90 transitions. [2018-04-11 10:04:27,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-04-11 10:04:27,243 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:04:27,243 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] [2018-04-11 10:04:27,243 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]=== [2018-04-11 10:04:27,243 INFO L82 PathProgramCache]: Analyzing trace with hash 1948171744, now seen corresponding path program 1 times [2018-04-11 10:04:27,243 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:04:27,243 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:04:27,244 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:27,244 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 10:04:27,244 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:27,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:04:27,256 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:04:27,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:04:27,319 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:04:27,319 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 10:04:27,320 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 10:04:27,320 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 10:04:27,320 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-11 10:04:27,320 INFO L87 Difference]: Start difference. First operand 83 states and 90 transitions. Second operand 6 states. [2018-04-11 10:04:27,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:04:27,381 INFO L93 Difference]: Finished difference Result 82 states and 89 transitions. [2018-04-11 10:04:27,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-11 10:04:27,381 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2018-04-11 10:04:27,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:04:27,381 INFO L225 Difference]: With dead ends: 82 [2018-04-11 10:04:27,381 INFO L226 Difference]: Without dead ends: 35 [2018-04-11 10:04:27,381 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 [2018-04-11 10:04:27,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-04-11 10:04:27,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-04-11 10:04:27,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-04-11 10:04:27,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2018-04-11 10:04:27,383 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 32 [2018-04-11 10:04:27,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:04:27,383 INFO L459 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2018-04-11 10:04:27,383 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 10:04:27,383 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2018-04-11 10:04:27,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-04-11 10:04:27,384 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:04:27,384 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] [2018-04-11 10:04:27,384 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]=== [2018-04-11 10:04:27,384 INFO L82 PathProgramCache]: Analyzing trace with hash -2133407846, now seen corresponding path program 2 times [2018-04-11 10:04:27,384 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:04:27,384 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:04:27,385 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:27,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:04:27,385 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:27,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:04:27,397 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:04:27,665 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:04:27,665 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:04:27,665 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 [2018-04-11 10:04:27,670 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 10:04:27,687 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 10:04:27,687 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 10:04:27,690 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:04:27,693 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 [2018-04-11 10:04:27,693 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:04:27,697 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 [2018-04-11 10:04:27,698 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:04:27,704 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:04:27,704 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 10:04:27,744 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:04:27,745 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:04:27,745 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 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 [2018-04-11 10:04:27,745 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:04:27,755 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 [2018-04-11 10:04:27,756 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:04:27,763 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:04:27,763 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:28, output treesize:21 [2018-04-11 10:04:27,808 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 [2018-04-11 10:04:27,810 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 [2018-04-11 10:04:27,810 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:04:27,811 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:04:27,816 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. [2018-04-11 10:04:27,816 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:35, output treesize:31 [2018-04-11 10:04:27,858 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 [2018-04-11 10:04:27,860 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 [2018-04-11 10:04:27,860 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:04:27,866 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:04:27,876 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. [2018-04-11 10:04:27,876 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:42, output treesize:38 [2018-04-11 10:04:28,493 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 [2018-04-11 10:04:28,498 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 [2018-04-11 10:04:28,499 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 10:04:28,505 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 [2018-04-11 10:04:28,506 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 10:04:28,510 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 10:04:28,524 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. [2018-04-11 10:04:28,524 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:66, output treesize:69 [2018-04-11 10:04:28,732 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:04:28,750 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 10:04:28,750 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 24] total 39 [2018-04-11 10:04:28,750 INFO L442 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-04-11 10:04:28,751 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-04-11 10:04:28,751 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1447, Unknown=0, NotChecked=0, Total=1560 [2018-04-11 10:04:28,751 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand 40 states. [2018-04-11 10:04:30,368 WARN L151 SmtUtils]: Spent 102ms on a formula simplification. DAG size of input: 109 DAG size of output 67 [2018-04-11 10:04:31,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:04:31,699 INFO L93 Difference]: Finished difference Result 60 states and 64 transitions. [2018-04-11 10:04:31,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-04-11 10:04:31,699 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 34 [2018-04-11 10:04:31,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:04:31,699 INFO L225 Difference]: With dead ends: 60 [2018-04-11 10:04:31,699 INFO L226 Difference]: Without dead ends: 0 [2018-04-11 10:04:31,700 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 924 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=534, Invalid=4722, Unknown=0, NotChecked=0, Total=5256 [2018-04-11 10:04:31,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-04-11 10:04:31,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-04-11 10:04:31,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-04-11 10:04:31,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-04-11 10:04:31,701 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2018-04-11 10:04:31,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:04:31,701 INFO L459 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-04-11 10:04:31,701 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-04-11 10:04:31,701 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-04-11 10:04:31,701 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-04-11 10:04:31,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.04 10:04:31 BoogieIcfgContainer [2018-04-11 10:04:31,704 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-11 10:04:31,704 INFO L168 Benchmark]: Toolchain (without parser) took 12750.85 ms. Allocated memory was 402.1 MB in the beginning and 876.1 MB in the end (delta: 474.0 MB). Free memory was 334.8 MB in the beginning and 623.4 MB in the end (delta: -288.5 MB). Peak memory consumption was 185.4 MB. Max. memory is 5.3 GB. [2018-04-11 10:04:31,705 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 402.1 MB. Free memory is still 362.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 10:04:31,705 INFO L168 Benchmark]: CACSL2BoogieTranslator took 221.90 ms. Allocated memory is still 402.1 MB. Free memory was 333.5 MB in the beginning and 309.6 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 5.3 GB. [2018-04-11 10:04:31,705 INFO L168 Benchmark]: Boogie Preprocessor took 36.55 ms. Allocated memory is still 402.1 MB. Free memory was 309.6 MB in the beginning and 308.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-04-11 10:04:31,706 INFO L168 Benchmark]: RCFGBuilder took 371.77 ms. Allocated memory was 402.1 MB in the beginning and 609.7 MB in the end (delta: 207.6 MB). Free memory was 308.3 MB in the beginning and 546.1 MB in the end (delta: -237.8 MB). Peak memory consumption was 25.0 MB. Max. memory is 5.3 GB. [2018-04-11 10:04:31,706 INFO L168 Benchmark]: TraceAbstraction took 12117.93 ms. Allocated memory was 609.7 MB in the beginning and 876.1 MB in the end (delta: 266.3 MB). Free memory was 546.1 MB in the beginning and 623.4 MB in the end (delta: -77.2 MB). Peak memory consumption was 189.1 MB. Max. memory is 5.3 GB. [2018-04-11 10:04:31,707 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 402.1 MB. Free memory is still 362.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 221.90 ms. Allocated memory is still 402.1 MB. Free memory was 333.5 MB in the beginning and 309.6 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 36.55 ms. Allocated memory is still 402.1 MB. Free memory was 309.6 MB in the beginning and 308.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 371.77 ms. Allocated memory was 402.1 MB in the beginning and 609.7 MB in the end (delta: 207.6 MB). Free memory was 308.3 MB in the beginning and 546.1 MB in the end (delta: -237.8 MB). Peak memory consumption was 25.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 12117.93 ms. Allocated memory was 609.7 MB in the beginning and 876.1 MB in the end (delta: 266.3 MB). Free memory was 546.1 MB in the beginning and 623.4 MB in the end (delta: -77.2 MB). Peak memory consumption was 189.1 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, 12.0s OverallTime, 15 OverallIterations, 3 TraceHistogramMax, 7.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 443 SDtfs, 1133 SDslu, 2414 SDs, 0 SdLazy, 2807 SolverSat, 343 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 375 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 293 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1865 ImplicationChecksByTransitivity, 8.5s 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-0-2018-04-11_10-04-31-711.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-0-2018-04-11_10-04-31-711.csv Received shutdown request...