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_cstrcmp-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-11 20:33:07,432 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-11 20:33:07,434 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-11 20:33:07,447 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-11 20:33:07,448 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-11 20:33:07,448 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-11 20:33:07,449 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-11 20:33:07,451 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-11 20:33:07,452 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-11 20:33:07,453 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-11 20:33:07,454 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-11 20:33:07,454 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-11 20:33:07,455 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-11 20:33:07,456 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-11 20:33:07,456 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-11 20:33:07,458 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-11 20:33:07,459 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-11 20:33:07,460 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-11 20:33:07,461 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-11 20:33:07,462 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-11 20:33:07,464 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-11 20:33:07,464 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-11 20:33:07,464 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-11 20:33:07,465 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-11 20:33:07,465 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-11 20:33:07,466 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-11 20:33:07,466 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-11 20:33:07,467 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-11 20:33:07,468 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-11 20:33:07,468 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-11 20:33:07,468 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-11 20:33:07,468 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 20:33:07,489 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-11 20:33:07,490 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-11 20:33:07,490 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-11 20:33:07,491 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-11 20:33:07,491 INFO L133 SettingsManager]: * Use SBE=true [2018-04-11 20:33:07,491 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-11 20:33:07,491 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-11 20:33:07,491 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-11 20:33:07,491 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-11 20:33:07,492 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-11 20:33:07,492 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-11 20:33:07,492 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-11 20:33:07,492 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-11 20:33:07,492 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-11 20:33:07,492 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-11 20:33:07,492 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-11 20:33:07,493 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-11 20:33:07,493 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-11 20:33:07,493 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-11 20:33:07,493 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 20:33:07,493 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-11 20:33:07,493 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-11 20:33:07,493 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-11 20:33:07,493 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 20:33:07,520 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-11 20:33:07,529 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-11 20:33:07,532 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-11 20:33:07,533 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-11 20:33:07,534 INFO L276 PluginConnector]: CDTParser initialized [2018-04-11 20:33:07,534 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,827 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG0b984bc30 [2018-04-11 20:33:07,984 INFO L287 CDTParser]: IsIndexed: true [2018-04-11 20:33:07,984 INFO L288 CDTParser]: Found 1 translation units. [2018-04-11 20:33:07,984 INFO L168 CDTParser]: Scanning openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,991 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-11 20:33:07,991 INFO L215 ultiparseSymbolTable]: [2018-04-11 20:33:07,992 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-11 20:33:07,992 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____bswap_32 ('__bswap_32') in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,992 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____bswap_64 ('__bswap_64') in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,992 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,992 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmp ('cstrcmp') in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,992 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-11 20:33:07,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____uid_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__pthread_attr_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____uint64_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__ssize_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__pthread_once_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____fsword_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____int64_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__pthread_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__timer_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____fd_mask in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__wchar_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____int8_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____useconds_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____nlink_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__register_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____sig_atomic_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____uint8_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____clock_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__loff_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__pthread_condattr_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__u_int8_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____key_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__ldiv_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__int8_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____fsblkcnt64_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__u_int64_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____daddr_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__int64_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____syscall_slong_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____time_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____timer_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__fd_mask in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__ushort in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,996 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____blkcnt_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,996 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__fsfilcnt_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,996 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____ssize_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,996 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__int32_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,996 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____off_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,996 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__ino_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,996 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__pthread_mutex_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,996 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__clockid_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,996 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____fsfilcnt64_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,996 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__key_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,996 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__dev_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,996 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____u_int in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,996 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__time_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,996 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__pthread_rwlockattr_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,996 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____blkcnt64_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,996 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__sigset_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,996 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__nlink_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,996 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__uint in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,996 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____ino64_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,997 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__id_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,997 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__u_quad_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,997 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____off64_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,997 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____caddr_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,997 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____u_char in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,997 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__pthread_key_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,997 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____syscall_ulong_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,997 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__blkcnt_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,997 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__pthread_rwlock_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,997 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__u_int32_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,997 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__fd_set in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,997 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__int16_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,997 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____dev_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,997 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____fsblkcnt_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,997 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__uid_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,997 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____pthread_list_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,997 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__pthread_barrierattr_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,998 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__lldiv_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,998 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__fsblkcnt_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,998 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____suseconds_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,998 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____int32_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,998 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____uint16_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,998 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____id_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,998 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__u_int in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,998 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____quad_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,998 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____gid_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,998 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____blksize_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,998 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____qaddr_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,998 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____rlim64_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,998 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____fsfilcnt_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,998 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__pthread_mutexattr_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,999 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__size_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,999 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____ino_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,999 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____pid_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,999 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__pthread_barrier_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,999 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____WAIT_STATUS in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,999 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____loff_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,999 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__u_long in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,999 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____u_quad_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,999 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____intptr_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,999 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____rlim_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,999 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__pthread_cond_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:07,999 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__fsid_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:08,000 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__pid_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:08,000 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__daddr_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:08,000 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__quad_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:08,000 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____clockid_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:08,000 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__suseconds_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:08,000 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____u_short in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:08,000 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__clock_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:08,000 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__mode_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:08,000 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____socklen_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:08,000 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__off_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:08,001 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____int16_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:08,001 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__u_short in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:08,001 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__u_char in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:08,001 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____uint32_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:08,001 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____u_long in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:08,001 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__div_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:08,001 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__u_int16_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:08,001 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__gid_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:08,001 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__ulong in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:08,001 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____fsid_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:08,001 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__caddr_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:08,001 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__pthread_spinlock_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:08,002 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____sigset_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:08,002 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__blksize_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:08,002 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____mode_t in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:08,015 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG0b984bc30 [2018-04-11 20:33:08,017 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-11 20:33:08,018 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-11 20:33:08,019 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-11 20:33:08,019 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-11 20:33:08,022 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-11 20:33:08,023 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 08:33:08" (1/1) ... [2018-04-11 20:33:08,024 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@403bdb97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:33:08, skipping insertion in model container [2018-04-11 20:33:08,024 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 08:33:08" (1/1) ... [2018-04-11 20:33:08,035 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 20:33:08,058 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 20:33:08,183 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 20:33:08,218 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 20:33:08,223 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 112 non ball SCCs. Number of states in SCCs 112. [2018-04-11 20:33:08,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:33:08 WrapperNode [2018-04-11 20:33:08,254 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-11 20:33:08,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-11 20:33:08,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-11 20:33:08,255 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-11 20:33:08,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:33:08" (1/1) ... [2018-04-11 20:33:08,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:33:08" (1/1) ... [2018-04-11 20:33:08,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:33:08" (1/1) ... [2018-04-11 20:33:08,275 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:33:08" (1/1) ... [2018-04-11 20:33:08,283 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:33:08" (1/1) ... [2018-04-11 20:33:08,287 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:33:08" (1/1) ... [2018-04-11 20:33:08,289 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:33:08" (1/1) ... [2018-04-11 20:33:08,293 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-11 20:33:08,293 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-11 20:33:08,293 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-11 20:33:08,293 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-11 20:33:08,294 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:33:08" (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 20:33:08,398 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-11 20:33:08,398 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-11 20:33:08,398 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-11 20:33:08,398 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-11 20:33:08,399 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmp [2018-04-11 20:33:08,399 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-11 20:33:08,399 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-11 20:33:08,399 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-11 20:33:08,399 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-11 20:33:08,399 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-11 20:33:08,400 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-11 20:33:08,400 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-11 20:33:08,400 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-11 20:33:08,400 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-11 20:33:08,400 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-11 20:33:08,400 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-11 20:33:08,401 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-11 20:33:08,401 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-11 20:33:08,401 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-11 20:33:08,401 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-11 20:33:08,401 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-11 20:33:08,401 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-11 20:33:08,401 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-11 20:33:08,402 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-11 20:33:08,402 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-11 20:33:08,402 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-11 20:33:08,402 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-11 20:33:08,402 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-11 20:33:08,402 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-11 20:33:08,402 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-11 20:33:08,402 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-11 20:33:08,402 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-11 20:33:08,403 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-11 20:33:08,403 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-11 20:33:08,403 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-11 20:33:08,403 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-11 20:33:08,403 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-11 20:33:08,403 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-11 20:33:08,403 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-11 20:33:08,403 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-11 20:33:08,404 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-11 20:33:08,404 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-11 20:33:08,404 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-11 20:33:08,404 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-11 20:33:08,404 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-11 20:33:08,404 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-11 20:33:08,404 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-11 20:33:08,405 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-11 20:33:08,405 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-11 20:33:08,405 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-11 20:33:08,405 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-11 20:33:08,406 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-11 20:33:08,406 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-11 20:33:08,407 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-11 20:33:08,407 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-11 20:33:08,407 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-11 20:33:08,407 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-11 20:33:08,407 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-11 20:33:08,407 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-11 20:33:08,407 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-11 20:33:08,407 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-11 20:33:08,407 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-11 20:33:08,408 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-11 20:33:08,408 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-11 20:33:08,408 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-11 20:33:08,408 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-11 20:33:08,408 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-11 20:33:08,408 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-11 20:33:08,408 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-11 20:33:08,408 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-11 20:33:08,408 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-11 20:33:08,408 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-11 20:33:08,408 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-11 20:33:08,409 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-11 20:33:08,409 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-11 20:33:08,409 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-11 20:33:08,409 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-11 20:33:08,409 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-11 20:33:08,409 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-11 20:33:08,409 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-11 20:33:08,410 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-11 20:33:08,410 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-11 20:33:08,410 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-11 20:33:08,410 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-11 20:33:08,410 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-11 20:33:08,410 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-11 20:33:08,410 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-11 20:33:08,410 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-11 20:33:08,410 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-11 20:33:08,410 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-11 20:33:08,411 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-11 20:33:08,411 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-11 20:33:08,411 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-11 20:33:08,411 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-11 20:33:08,411 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-11 20:33:08,411 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-11 20:33:08,411 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-11 20:33:08,411 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-11 20:33:08,411 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-11 20:33:08,412 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-11 20:33:08,412 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-11 20:33:08,412 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-11 20:33:08,412 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-11 20:33:08,412 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-11 20:33:08,412 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-11 20:33:08,412 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-11 20:33:08,412 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-11 20:33:08,412 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-11 20:33:08,412 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-11 20:33:08,412 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmp [2018-04-11 20:33:08,413 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-11 20:33:08,413 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-11 20:33:08,413 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-11 20:33:08,413 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-11 20:33:08,413 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-11 20:33:08,413 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-11 20:33:08,413 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-11 20:33:08,413 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-11 20:33:08,731 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-11 20:33:08,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 08:33:08 BoogieIcfgContainer [2018-04-11 20:33:08,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-11 20:33:08,731 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-11 20:33:08,732 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-11 20:33:08,733 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-11 20:33:08,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.04 08:33:08" (1/3) ... [2018-04-11 20:33:08,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f99edf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 08:33:08, skipping insertion in model container [2018-04-11 20:33:08,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:33:08" (2/3) ... [2018-04-11 20:33:08,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f99edf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 08:33:08, skipping insertion in model container [2018-04-11 20:33:08,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 08:33:08" (3/3) ... [2018-04-11 20:33:08,735 INFO L107 eAbstractionObserver]: Analyzing ICFG openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:33:08,740 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-11 20:33:08,745 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 15 error locations. [2018-04-11 20:33:08,769 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-11 20:33:08,770 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-11 20:33:08,770 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-11 20:33:08,770 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-11 20:33:08,770 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-11 20:33:08,770 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-11 20:33:08,770 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-11 20:33:08,770 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-11 20:33:08,770 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-11 20:33:08,771 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-11 20:33:08,779 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2018-04-11 20:33:08,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-11 20:33:08,787 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:33:08,787 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:33:08,788 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr9RequiresViolation]=== [2018-04-11 20:33:08,790 INFO L82 PathProgramCache]: Analyzing trace with hash 1034793114, now seen corresponding path program 1 times [2018-04-11 20:33:08,791 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:33:08,791 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:33:08,821 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:33:08,821 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:33:08,821 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:33:08,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:33:08,861 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:33:08,931 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 20:33:08,932 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:33:08,932 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 20:33:08,933 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 20:33:08,941 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 20:33:08,942 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 20:33:08,943 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 4 states. [2018-04-11 20:33:09,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:33:09,021 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2018-04-11 20:33:09,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-11 20:33:09,022 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-04-11 20:33:09,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:33:09,028 INFO L225 Difference]: With dead ends: 52 [2018-04-11 20:33:09,028 INFO L226 Difference]: Without dead ends: 49 [2018-04-11 20:33:09,029 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 20:33:09,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-04-11 20:33:09,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-04-11 20:33:09,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-04-11 20:33:09,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 52 transitions. [2018-04-11 20:33:09,053 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 52 transitions. Word has length 13 [2018-04-11 20:33:09,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:33:09,053 INFO L459 AbstractCegarLoop]: Abstraction has 49 states and 52 transitions. [2018-04-11 20:33:09,053 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 20:33:09,053 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 52 transitions. [2018-04-11 20:33:09,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-11 20:33:09,053 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:33:09,053 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:33:09,053 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr9RequiresViolation]=== [2018-04-11 20:33:09,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1034793115, now seen corresponding path program 1 times [2018-04-11 20:33:09,054 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:33:09,054 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:33:09,055 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:33:09,055 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:33:09,055 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:33:09,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:33:09,070 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:33:09,140 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 20:33:09,141 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:33:09,141 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 20:33:09,142 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 20:33:09,142 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 20:33:09,143 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-04-11 20:33:09,143 INFO L87 Difference]: Start difference. First operand 49 states and 52 transitions. Second operand 6 states. [2018-04-11 20:33:09,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:33:09,201 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2018-04-11 20:33:09,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 20:33:09,201 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-04-11 20:33:09,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:33:09,202 INFO L225 Difference]: With dead ends: 48 [2018-04-11 20:33:09,202 INFO L226 Difference]: Without dead ends: 48 [2018-04-11 20:33:09,202 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 20:33:09,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-04-11 20:33:09,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-04-11 20:33:09,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-04-11 20:33:09,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 51 transitions. [2018-04-11 20:33:09,207 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 51 transitions. Word has length 13 [2018-04-11 20:33:09,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:33:09,207 INFO L459 AbstractCegarLoop]: Abstraction has 48 states and 51 transitions. [2018-04-11 20:33:09,207 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 20:33:09,207 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 51 transitions. [2018-04-11 20:33:09,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-11 20:33:09,208 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:33:09,208 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:33:09,208 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr9RequiresViolation]=== [2018-04-11 20:33:09,208 INFO L82 PathProgramCache]: Analyzing trace with hash 2013815454, now seen corresponding path program 1 times [2018-04-11 20:33:09,208 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:33:09,208 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:33:09,209 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:33:09,209 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:33:09,209 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:33:09,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:33:09,220 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:33:09,240 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 20:33:09,241 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:33:09,241 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 20:33:09,241 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 20:33:09,241 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 20:33:09,241 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 20:33:09,241 INFO L87 Difference]: Start difference. First operand 48 states and 51 transitions. Second operand 4 states. [2018-04-11 20:33:09,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:33:09,291 INFO L93 Difference]: Finished difference Result 47 states and 50 transitions. [2018-04-11 20:33:09,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-11 20:33:09,292 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-04-11 20:33:09,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:33:09,292 INFO L225 Difference]: With dead ends: 47 [2018-04-11 20:33:09,292 INFO L226 Difference]: Without dead ends: 47 [2018-04-11 20:33:09,292 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 20:33:09,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-04-11 20:33:09,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-04-11 20:33:09,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-04-11 20:33:09,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 50 transitions. [2018-04-11 20:33:09,295 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 50 transitions. Word has length 14 [2018-04-11 20:33:09,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:33:09,295 INFO L459 AbstractCegarLoop]: Abstraction has 47 states and 50 transitions. [2018-04-11 20:33:09,295 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 20:33:09,295 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 50 transitions. [2018-04-11 20:33:09,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-11 20:33:09,295 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:33:09,295 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:33:09,295 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr9RequiresViolation]=== [2018-04-11 20:33:09,296 INFO L82 PathProgramCache]: Analyzing trace with hash 2013815455, now seen corresponding path program 1 times [2018-04-11 20:33:09,296 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:33:09,296 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:33:09,296 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:33:09,297 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:33:09,297 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:33:09,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:33:09,307 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:33:09,348 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 20:33:09,349 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:33:09,349 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 20:33:09,349 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 20:33:09,349 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 20:33:09,349 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-11 20:33:09,350 INFO L87 Difference]: Start difference. First operand 47 states and 50 transitions. Second operand 5 states. [2018-04-11 20:33:09,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:33:09,371 INFO L93 Difference]: Finished difference Result 46 states and 49 transitions. [2018-04-11 20:33:09,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 20:33:09,372 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-04-11 20:33:09,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:33:09,372 INFO L225 Difference]: With dead ends: 46 [2018-04-11 20:33:09,372 INFO L226 Difference]: Without dead ends: 46 [2018-04-11 20:33:09,373 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 20:33:09,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-04-11 20:33:09,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-04-11 20:33:09,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-04-11 20:33:09,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 49 transitions. [2018-04-11 20:33:09,375 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 49 transitions. Word has length 14 [2018-04-11 20:33:09,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:33:09,375 INFO L459 AbstractCegarLoop]: Abstraction has 46 states and 49 transitions. [2018-04-11 20:33:09,375 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 20:33:09,375 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 49 transitions. [2018-04-11 20:33:09,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-04-11 20:33:09,376 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:33:09,376 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 20:33:09,376 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr9RequiresViolation]=== [2018-04-11 20:33:09,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1580249804, now seen corresponding path program 1 times [2018-04-11 20:33:09,376 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:33:09,376 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:33:09,377 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:33:09,377 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:33:09,377 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:33:09,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:33:09,387 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:33:09,413 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 20:33:09,413 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:33:09,413 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 20:33:09,413 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 20:33:09,413 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 20:33:09,413 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-11 20:33:09,413 INFO L87 Difference]: Start difference. First operand 46 states and 49 transitions. Second operand 5 states. [2018-04-11 20:33:09,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:33:09,451 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2018-04-11 20:33:09,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 20:33:09,452 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-04-11 20:33:09,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:33:09,452 INFO L225 Difference]: With dead ends: 44 [2018-04-11 20:33:09,452 INFO L226 Difference]: Without dead ends: 44 [2018-04-11 20:33:09,452 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-04-11 20:33:09,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-04-11 20:33:09,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-04-11 20:33:09,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-04-11 20:33:09,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2018-04-11 20:33:09,455 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 47 transitions. Word has length 18 [2018-04-11 20:33:09,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:33:09,455 INFO L459 AbstractCegarLoop]: Abstraction has 44 states and 47 transitions. [2018-04-11 20:33:09,455 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 20:33:09,455 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2018-04-11 20:33:09,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-04-11 20:33:09,455 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:33:09,455 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 20:33:09,455 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr9RequiresViolation]=== [2018-04-11 20:33:09,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1580249803, now seen corresponding path program 1 times [2018-04-11 20:33:09,456 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:33:09,456 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:33:09,456 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:33:09,456 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:33:09,456 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:33:09,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:33:09,466 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:33:09,526 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 20:33:09,526 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:33:09,526 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-04-11 20:33:09,526 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-11 20:33:09,526 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-11 20:33:09,527 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-04-11 20:33:09,527 INFO L87 Difference]: Start difference. First operand 44 states and 47 transitions. Second operand 8 states. [2018-04-11 20:33:09,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:33:09,617 INFO L93 Difference]: Finished difference Result 59 states and 63 transitions. [2018-04-11 20:33:09,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-11 20:33:09,617 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2018-04-11 20:33:09,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:33:09,619 INFO L225 Difference]: With dead ends: 59 [2018-04-11 20:33:09,619 INFO L226 Difference]: Without dead ends: 59 [2018-04-11 20:33:09,619 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2018-04-11 20:33:09,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-04-11 20:33:09,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 50. [2018-04-11 20:33:09,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-04-11 20:33:09,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 56 transitions. [2018-04-11 20:33:09,623 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 56 transitions. Word has length 18 [2018-04-11 20:33:09,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:33:09,623 INFO L459 AbstractCegarLoop]: Abstraction has 50 states and 56 transitions. [2018-04-11 20:33:09,623 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-11 20:33:09,623 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 56 transitions. [2018-04-11 20:33:09,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-04-11 20:33:09,624 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:33:09,624 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:33:09,624 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr9RequiresViolation]=== [2018-04-11 20:33:09,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1798361525, now seen corresponding path program 1 times [2018-04-11 20:33:09,624 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:33:09,624 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:33:09,625 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:33:09,625 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:33:09,631 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:33:09,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:33:09,640 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:33:09,663 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 20:33:09,663 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:33:09,663 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 20:33:09,664 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 20:33:09,664 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 20:33:09,664 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-11 20:33:09,664 INFO L87 Difference]: Start difference. First operand 50 states and 56 transitions. Second operand 6 states. [2018-04-11 20:33:09,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:33:09,710 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2018-04-11 20:33:09,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 20:33:09,710 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2018-04-11 20:33:09,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:33:09,711 INFO L225 Difference]: With dead ends: 49 [2018-04-11 20:33:09,711 INFO L226 Difference]: Without dead ends: 49 [2018-04-11 20:33:09,711 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 20:33:09,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-04-11 20:33:09,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-04-11 20:33:09,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-04-11 20:33:09,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2018-04-11 20:33:09,714 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 20 [2018-04-11 20:33:09,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:33:09,714 INFO L459 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2018-04-11 20:33:09,714 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 20:33:09,714 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2018-04-11 20:33:09,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-04-11 20:33:09,715 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:33:09,715 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:33:09,715 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr9RequiresViolation]=== [2018-04-11 20:33:09,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1798361526, now seen corresponding path program 1 times [2018-04-11 20:33:09,715 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:33:09,715 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:33:09,716 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:33:09,716 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:33:09,716 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:33:09,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:33:09,725 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:33:09,800 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 20:33:09,801 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:33:09,801 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-04-11 20:33:09,801 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-11 20:33:09,801 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-11 20:33:09,801 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-04-11 20:33:09,802 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand 9 states. [2018-04-11 20:33:09,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:33:09,914 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2018-04-11 20:33:09,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-11 20:33:09,914 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2018-04-11 20:33:09,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:33:09,915 INFO L225 Difference]: With dead ends: 49 [2018-04-11 20:33:09,915 INFO L226 Difference]: Without dead ends: 49 [2018-04-11 20:33:09,915 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2018-04-11 20:33:09,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-04-11 20:33:09,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-04-11 20:33:09,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-04-11 20:33:09,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2018-04-11 20:33:09,918 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 20 [2018-04-11 20:33:09,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:33:09,918 INFO L459 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2018-04-11 20:33:09,918 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-11 20:33:09,918 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2018-04-11 20:33:09,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-04-11 20:33:09,919 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:33:09,919 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] [2018-04-11 20:33:09,919 INFO L408 AbstractCegarLoop]: === Iteration 9 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr9RequiresViolation]=== [2018-04-11 20:33:09,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1648573174, now seen corresponding path program 1 times [2018-04-11 20:33:09,919 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:33:09,919 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:33:09,920 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:33:09,920 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:33:09,920 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:33:09,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:33:09,928 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:33:09,956 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 20:33:09,956 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:33:09,956 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 20:33:09,956 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 20:33:09,956 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 20:33:09,956 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-11 20:33:09,957 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand 6 states. [2018-04-11 20:33:10,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:33:10,009 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2018-04-11 20:33:10,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 20:33:10,009 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2018-04-11 20:33:10,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:33:10,009 INFO L225 Difference]: With dead ends: 48 [2018-04-11 20:33:10,009 INFO L226 Difference]: Without dead ends: 48 [2018-04-11 20:33:10,009 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 20:33:10,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-04-11 20:33:10,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-04-11 20:33:10,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-04-11 20:33:10,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2018-04-11 20:33:10,011 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 22 [2018-04-11 20:33:10,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:33:10,012 INFO L459 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2018-04-11 20:33:10,012 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 20:33:10,012 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2018-04-11 20:33:10,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-04-11 20:33:10,012 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:33:10,013 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] [2018-04-11 20:33:10,013 INFO L408 AbstractCegarLoop]: === Iteration 10 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr9RequiresViolation]=== [2018-04-11 20:33:10,013 INFO L82 PathProgramCache]: Analyzing trace with hash 1648573175, now seen corresponding path program 1 times [2018-04-11 20:33:10,013 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:33:10,013 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:33:10,014 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:33:10,014 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:33:10,014 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:33:10,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:33:10,024 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:33:10,082 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 20:33:10,082 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:33:10,082 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-04-11 20:33:10,082 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-11 20:33:10,083 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-11 20:33:10,083 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-04-11 20:33:10,083 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand 8 states. [2018-04-11 20:33:10,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:33:10,169 INFO L93 Difference]: Finished difference Result 57 states and 62 transitions. [2018-04-11 20:33:10,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-11 20:33:10,169 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2018-04-11 20:33:10,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:33:10,170 INFO L225 Difference]: With dead ends: 57 [2018-04-11 20:33:10,170 INFO L226 Difference]: Without dead ends: 57 [2018-04-11 20:33:10,173 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2018-04-11 20:33:10,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-04-11 20:33:10,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 49. [2018-04-11 20:33:10,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-04-11 20:33:10,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2018-04-11 20:33:10,176 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 22 [2018-04-11 20:33:10,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:33:10,179 INFO L459 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2018-04-11 20:33:10,179 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-11 20:33:10,179 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2018-04-11 20:33:10,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-04-11 20:33:10,179 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:33:10,179 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] [2018-04-11 20:33:10,179 INFO L408 AbstractCegarLoop]: === Iteration 11 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr9RequiresViolation]=== [2018-04-11 20:33:10,179 INFO L82 PathProgramCache]: Analyzing trace with hash -564160893, now seen corresponding path program 1 times [2018-04-11 20:33:10,180 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:33:10,180 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:33:10,180 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:33:10,180 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:33:10,180 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:33:10,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:33:10,188 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:33:10,221 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 20:33:10,222 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:33:10,222 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 20:33:10,222 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 20:33:10,223 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 20:33:10,223 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-11 20:33:10,223 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand 6 states. [2018-04-11 20:33:10,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:33:10,278 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2018-04-11 20:33:10,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 20:33:10,279 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-04-11 20:33:10,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:33:10,279 INFO L225 Difference]: With dead ends: 48 [2018-04-11 20:33:10,279 INFO L226 Difference]: Without dead ends: 48 [2018-04-11 20:33:10,280 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 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 20:33:10,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-04-11 20:33:10,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-04-11 20:33:10,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-04-11 20:33:10,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2018-04-11 20:33:10,283 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 24 [2018-04-11 20:33:10,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:33:10,283 INFO L459 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2018-04-11 20:33:10,283 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 20:33:10,283 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2018-04-11 20:33:10,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-04-11 20:33:10,283 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:33:10,284 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] [2018-04-11 20:33:10,284 INFO L408 AbstractCegarLoop]: === Iteration 12 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr9RequiresViolation]=== [2018-04-11 20:33:10,284 INFO L82 PathProgramCache]: Analyzing trace with hash -564160892, now seen corresponding path program 1 times [2018-04-11 20:33:10,284 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:33:10,284 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:33:10,285 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:33:10,285 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:33:10,285 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:33:10,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:33:10,294 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:33:10,366 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 20:33:10,366 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:33:10,366 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-04-11 20:33:10,366 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-11 20:33:10,366 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-11 20:33:10,366 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-04-11 20:33:10,367 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand 9 states. [2018-04-11 20:33:10,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:33:10,472 INFO L93 Difference]: Finished difference Result 57 states and 62 transitions. [2018-04-11 20:33:10,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-11 20:33:10,472 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2018-04-11 20:33:10,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:33:10,473 INFO L225 Difference]: With dead ends: 57 [2018-04-11 20:33:10,473 INFO L226 Difference]: Without dead ends: 57 [2018-04-11 20:33:10,473 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2018-04-11 20:33:10,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-04-11 20:33:10,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 50. [2018-04-11 20:33:10,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-04-11 20:33:10,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2018-04-11 20:33:10,475 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 24 [2018-04-11 20:33:10,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:33:10,475 INFO L459 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2018-04-11 20:33:10,475 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-11 20:33:10,476 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2018-04-11 20:33:10,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-04-11 20:33:10,476 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:33:10,476 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] [2018-04-11 20:33:10,477 INFO L408 AbstractCegarLoop]: === Iteration 13 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr9RequiresViolation]=== [2018-04-11 20:33:10,477 INFO L82 PathProgramCache]: Analyzing trace with hash -307576952, now seen corresponding path program 1 times [2018-04-11 20:33:10,477 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:33:10,477 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:33:10,478 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:33:10,478 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:33:10,478 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:33:10,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:33:10,489 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:33:10,626 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 20:33:10,626 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:33:10,626 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-04-11 20:33:10,626 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-11 20:33:10,626 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-11 20:33:10,627 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2018-04-11 20:33:10,627 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand 12 states. [2018-04-11 20:33:10,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:33:10,792 INFO L93 Difference]: Finished difference Result 81 states and 86 transitions. [2018-04-11 20:33:10,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-11 20:33:10,792 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 25 [2018-04-11 20:33:10,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:33:10,792 INFO L225 Difference]: With dead ends: 81 [2018-04-11 20:33:10,792 INFO L226 Difference]: Without dead ends: 81 [2018-04-11 20:33:10,793 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2018-04-11 20:33:10,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-04-11 20:33:10,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 72. [2018-04-11 20:33:10,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-04-11 20:33:10,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 78 transitions. [2018-04-11 20:33:10,795 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 78 transitions. Word has length 25 [2018-04-11 20:33:10,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:33:10,795 INFO L459 AbstractCegarLoop]: Abstraction has 72 states and 78 transitions. [2018-04-11 20:33:10,795 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-11 20:33:10,795 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 78 transitions. [2018-04-11 20:33:10,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-04-11 20:33:10,795 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:33:10,796 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] [2018-04-11 20:33:10,796 INFO L408 AbstractCegarLoop]: === Iteration 14 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr9RequiresViolation]=== [2018-04-11 20:33:10,796 INFO L82 PathProgramCache]: Analyzing trace with hash -1996520694, now seen corresponding path program 1 times [2018-04-11 20:33:10,796 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:33:10,796 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:33:10,796 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:33:10,796 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:33:10,796 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:33:10,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:33:10,804 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:33:10,976 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 20:33:10,976 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:33:10,976 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 20:33:10,982 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:33:11,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:33:11,012 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:33:11,048 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 11 treesize of output 8 [2018-04-11 20:33:11,049 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 8 treesize of output 7 [2018-04-11 20:33:11,050 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:33:11,051 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:33:11,052 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:33:11,052 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2018-04-11 20:33:11,168 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 26 [2018-04-11 20:33:11,171 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 22 treesize of output 15 [2018-04-11 20:33:11,171 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:33:11,179 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 0 case distinctions, treesize of input 18 treesize of output 3 [2018-04-11 20:33:11,179 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 20:33:11,182 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:33:11,183 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:33:11,183 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:26, output treesize:3 [2018-04-11 20:33:11,197 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 20:33:11,214 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-04-11 20:33:11,215 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 22 [2018-04-11 20:33:11,215 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-04-11 20:33:11,215 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-04-11 20:33:11,215 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=415, Unknown=0, NotChecked=0, Total=462 [2018-04-11 20:33:11,216 INFO L87 Difference]: Start difference. First operand 72 states and 78 transitions. Second operand 22 states. [2018-04-11 20:33:12,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:33:12,095 INFO L93 Difference]: Finished difference Result 144 states and 153 transitions. [2018-04-11 20:33:12,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-04-11 20:33:12,095 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 25 [2018-04-11 20:33:12,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:33:12,096 INFO L225 Difference]: With dead ends: 144 [2018-04-11 20:33:12,096 INFO L226 Difference]: Without dead ends: 144 [2018-04-11 20:33:12,097 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=294, Invalid=2058, Unknown=0, NotChecked=0, Total=2352 [2018-04-11 20:33:12,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2018-04-11 20:33:12,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 79. [2018-04-11 20:33:12,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-04-11 20:33:12,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 88 transitions. [2018-04-11 20:33:12,101 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 88 transitions. Word has length 25 [2018-04-11 20:33:12,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:33:12,101 INFO L459 AbstractCegarLoop]: Abstraction has 79 states and 88 transitions. [2018-04-11 20:33:12,101 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-04-11 20:33:12,102 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 88 transitions. [2018-04-11 20:33:12,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-04-11 20:33:12,102 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:33:12,102 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:33:12,102 INFO L408 AbstractCegarLoop]: === Iteration 15 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr9RequiresViolation]=== [2018-04-11 20:33:12,103 INFO L82 PathProgramCache]: Analyzing trace with hash 376345353, now seen corresponding path program 1 times [2018-04-11 20:33:12,103 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:33:12,103 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:33:12,104 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:33:12,104 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:33:12,104 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:33:12,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:33:12,115 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:33:12,343 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:33:12,344 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:33:12,344 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 20:33:12,369 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:33:12,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:33:12,393 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:33:12,401 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 20:33:12,403 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 20:33:12,403 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:33:12,404 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:33:12,408 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 20:33:12,408 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:21 [2018-04-11 20:33:13,549 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 31 [2018-04-11 20:33:13,551 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 27 treesize of output 20 [2018-04-11 20:33:13,551 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:33:13,583 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 20 treesize of output 18 [2018-04-11 20:33:13,583 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-11 20:33:13,605 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 25 [2018-04-11 20:33:13,605 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-04-11 20:33:13,614 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-04-11 20:33:13,626 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:33:13,627 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:49, output treesize:29 [2018-04-11 20:33:13,663 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:33:13,682 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:33:13,683 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 22 [2018-04-11 20:33:13,683 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-04-11 20:33:13,683 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-04-11 20:33:13,684 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2018-04-11 20:33:13,684 INFO L87 Difference]: Start difference. First operand 79 states and 88 transitions. Second operand 23 states. [2018-04-11 20:33:14,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:33:14,507 INFO L93 Difference]: Finished difference Result 79 states and 87 transitions. [2018-04-11 20:33:14,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-04-11 20:33:14,508 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 27 [2018-04-11 20:33:14,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:33:14,508 INFO L225 Difference]: With dead ends: 79 [2018-04-11 20:33:14,509 INFO L226 Difference]: Without dead ends: 79 [2018-04-11 20:33:14,509 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=145, Invalid=1045, Unknown=0, NotChecked=0, Total=1190 [2018-04-11 20:33:14,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-04-11 20:33:14,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2018-04-11 20:33:14,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-04-11 20:33:14,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 87 transitions. [2018-04-11 20:33:14,512 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 87 transitions. Word has length 27 [2018-04-11 20:33:14,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:33:14,512 INFO L459 AbstractCegarLoop]: Abstraction has 79 states and 87 transitions. [2018-04-11 20:33:14,513 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-04-11 20:33:14,513 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 87 transitions. [2018-04-11 20:33:14,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-04-11 20:33:14,513 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:33:14,514 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:33:14,514 INFO L408 AbstractCegarLoop]: === Iteration 16 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr9RequiresViolation]=== [2018-04-11 20:33:14,514 INFO L82 PathProgramCache]: Analyzing trace with hash 890631050, now seen corresponding path program 1 times [2018-04-11 20:33:14,514 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:33:14,514 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:33:14,515 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:33:14,515 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:33:14,515 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:33:14,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:33:14,525 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:33:14,596 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:33:14,597 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:33:14,597 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 20:33:14,601 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:33:14,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:33:14,615 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:33:14,623 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:33:14,640 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:33:14,640 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 10 [2018-04-11 20:33:14,640 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-04-11 20:33:14,640 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-04-11 20:33:14,640 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-04-11 20:33:14,640 INFO L87 Difference]: Start difference. First operand 79 states and 87 transitions. Second operand 11 states. [2018-04-11 20:33:14,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:33:14,735 INFO L93 Difference]: Finished difference Result 84 states and 92 transitions. [2018-04-11 20:33:14,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-11 20:33:14,735 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2018-04-11 20:33:14,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:33:14,736 INFO L225 Difference]: With dead ends: 84 [2018-04-11 20:33:14,736 INFO L226 Difference]: Without dead ends: 84 [2018-04-11 20:33:14,736 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2018-04-11 20:33:14,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-04-11 20:33:14,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 75. [2018-04-11 20:33:14,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-04-11 20:33:14,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 82 transitions. [2018-04-11 20:33:14,740 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 82 transitions. Word has length 29 [2018-04-11 20:33:14,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:33:14,740 INFO L459 AbstractCegarLoop]: Abstraction has 75 states and 82 transitions. [2018-04-11 20:33:14,740 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-04-11 20:33:14,740 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 82 transitions. [2018-04-11 20:33:14,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-04-11 20:33:14,740 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:33:14,740 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] [2018-04-11 20:33:14,740 INFO L408 AbstractCegarLoop]: === Iteration 17 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr9RequiresViolation]=== [2018-04-11 20:33:14,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1581359984, now seen corresponding path program 1 times [2018-04-11 20:33:14,741 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:33:14,741 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:33:14,741 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:33:14,741 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:33:14,741 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:33:14,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:33:14,749 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:33:14,845 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 20:33:14,845 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:33:14,845 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-11 20:33:14,846 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-11 20:33:14,846 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-11 20:33:14,846 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-04-11 20:33:14,846 INFO L87 Difference]: Start difference. First operand 75 states and 82 transitions. Second operand 7 states. [2018-04-11 20:33:14,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:33:14,952 INFO L93 Difference]: Finished difference Result 74 states and 81 transitions. [2018-04-11 20:33:14,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-11 20:33:14,986 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2018-04-11 20:33:14,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:33:14,986 INFO L225 Difference]: With dead ends: 74 [2018-04-11 20:33:14,986 INFO L226 Difference]: Without dead ends: 40 [2018-04-11 20:33:14,986 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-04-11 20:33:14,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-04-11 20:33:14,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-04-11 20:33:14,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-04-11 20:33:14,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 40 transitions. [2018-04-11 20:33:14,987 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 40 transitions. Word has length 31 [2018-04-11 20:33:14,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:33:14,988 INFO L459 AbstractCegarLoop]: Abstraction has 40 states and 40 transitions. [2018-04-11 20:33:14,988 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-11 20:33:14,988 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 40 transitions. [2018-04-11 20:33:14,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-04-11 20:33:14,988 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:33:14,988 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:33:14,988 INFO L408 AbstractCegarLoop]: === Iteration 18 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr9RequiresViolation]=== [2018-04-11 20:33:14,988 INFO L82 PathProgramCache]: Analyzing trace with hash 1197897303, now seen corresponding path program 1 times [2018-04-11 20:33:14,988 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:33:14,989 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:33:14,989 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:33:14,989 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:33:14,989 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:33:14,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:33:14,996 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:33:15,082 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:33:15,082 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:33:15,083 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 20:33:15,087 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:33:15,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:33:15,104 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:33:15,127 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:33:15,147 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-04-11 20:33:15,147 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 13 [2018-04-11 20:33:15,147 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-04-11 20:33:15,147 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-04-11 20:33:15,148 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2018-04-11 20:33:15,148 INFO L87 Difference]: Start difference. First operand 40 states and 40 transitions. Second operand 14 states. [2018-04-11 20:33:15,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:33:15,328 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2018-04-11 20:33:15,328 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-11 20:33:15,328 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 31 [2018-04-11 20:33:15,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:33:15,328 INFO L225 Difference]: With dead ends: 39 [2018-04-11 20:33:15,329 INFO L226 Difference]: Without dead ends: 36 [2018-04-11 20:33:15,329 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2018-04-11 20:33:15,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-04-11 20:33:15,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-04-11 20:33:15,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-04-11 20:33:15,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2018-04-11 20:33:15,330 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 31 [2018-04-11 20:33:15,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:33:15,331 INFO L459 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2018-04-11 20:33:15,331 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-04-11 20:33:15,331 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2018-04-11 20:33:15,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-04-11 20:33:15,331 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:33:15,331 INFO L355 BasicCegarLoop]: trace histogram [3, 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 20:33:15,331 INFO L408 AbstractCegarLoop]: === Iteration 19 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr9RequiresViolation]=== [2018-04-11 20:33:15,332 INFO L82 PathProgramCache]: Analyzing trace with hash -1518347755, now seen corresponding path program 1 times [2018-04-11 20:33:15,332 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:33:15,332 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:33:15,332 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:33:15,332 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:33:15,333 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:33:15,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:33:15,343 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:33:15,621 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:33:15,621 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:33:15,621 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 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 20:33:15,631 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:33:15,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:33:15,649 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:33:15,652 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 20:33:15,652 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:33:15,656 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 20:33:15,657 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:33:15,660 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:33:15,660 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 20:33:15,681 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:33:15,683 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 20:33:15,683 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:33:15,696 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:33:15,696 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:33:15,697 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 20:33:15,697 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:33:15,701 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:33:15,701 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2018-04-11 20:33:15,734 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-04-11 20:33:15,735 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-11 20:33:15,735 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:33:15,736 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:33:15,740 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:33:15,740 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:25, output treesize:21 [2018-04-11 20:33:15,772 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 29 [2018-04-11 20:33:15,773 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 20:33:15,774 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:33:15,777 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:33:15,780 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 1 xjuncts. [2018-04-11 20:33:15,781 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:28 [2018-04-11 20:33:15,995 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 33 treesize of output 31 [2018-04-11 20:33:15,996 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 10 treesize of output 1 [2018-04-11 20:33:15,997 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:33:16,003 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 14 [2018-04-11 20:33:16,004 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-11 20:33:16,006 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:33:16,011 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 20:33:16,011 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:45, output treesize:32 [2018-04-11 20:33:16,059 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:33:16,076 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:33:16,077 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 27 [2018-04-11 20:33:16,077 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-04-11 20:33:16,077 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-04-11 20:33:16,077 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=683, Unknown=0, NotChecked=0, Total=756 [2018-04-11 20:33:16,078 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand 28 states. [2018-04-11 20:33:18,824 WARN L151 SmtUtils]: Spent 1476ms on a formula simplification. DAG size of input: 53 DAG size of output 40 [2018-04-11 20:33:19,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:33:19,068 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2018-04-11 20:33:19,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-04-11 20:33:19,068 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 32 [2018-04-11 20:33:19,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:33:19,068 INFO L225 Difference]: With dead ends: 36 [2018-04-11 20:33:19,068 INFO L226 Difference]: Without dead ends: 36 [2018-04-11 20:33:19,069 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=204, Invalid=1435, Unknown=1, NotChecked=0, Total=1640 [2018-04-11 20:33:19,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-04-11 20:33:19,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2018-04-11 20:33:19,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-04-11 20:33:19,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2018-04-11 20:33:19,070 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 32 [2018-04-11 20:33:19,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:33:19,070 INFO L459 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2018-04-11 20:33:19,070 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-04-11 20:33:19,070 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2018-04-11 20:33:19,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-04-11 20:33:19,071 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:33:19,071 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:33:19,071 INFO L408 AbstractCegarLoop]: === Iteration 20 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr9RequiresViolation]=== [2018-04-11 20:33:19,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1156687510, now seen corresponding path program 2 times [2018-04-11 20:33:19,071 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:33:19,071 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:33:19,072 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:33:19,072 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:33:19,072 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:33:19,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:33:19,084 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:33:19,332 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:33:19,332 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:33:19,332 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 20:33:19,338 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 20:33:19,358 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 20:33:19,358 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 20:33:19,361 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:33:19,363 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 20:33:19,364 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:33:19,366 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:33:19,366 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 20:33:19,399 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 20:33:19,401 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 20:33:19,401 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:33:19,402 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:33:19,406 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 20:33:19,406 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:23, output treesize:19 [2018-04-11 20:33:19,663 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2018-04-11 20:33:19,665 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 29 treesize of output 22 [2018-04-11 20:33:19,665 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:33:19,676 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 22 treesize of output 20 [2018-04-11 20:33:19,677 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-11 20:33:19,694 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 29 [2018-04-11 20:33:19,695 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-04-11 20:33:19,703 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-04-11 20:33:19,714 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:33:19,714 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:47, output treesize:37 [2018-04-11 20:33:19,753 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:33:19,770 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:33:19,770 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 27 [2018-04-11 20:33:19,770 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-04-11 20:33:19,770 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-04-11 20:33:19,770 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2018-04-11 20:33:19,771 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand 28 states. [2018-04-11 20:33:20,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:33:20,445 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2018-04-11 20:33:20,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-11 20:33:20,445 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 34 [2018-04-11 20:33:20,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:33:20,445 INFO L225 Difference]: With dead ends: 35 [2018-04-11 20:33:20,445 INFO L226 Difference]: Without dead ends: 0 [2018-04-11 20:33:20,446 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=232, Invalid=1574, Unknown=0, NotChecked=0, Total=1806 [2018-04-11 20:33:20,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-04-11 20:33:20,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-04-11 20:33:20,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-04-11 20:33:20,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-04-11 20:33:20,446 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2018-04-11 20:33:20,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:33:20,446 INFO L459 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-04-11 20:33:20,446 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-04-11 20:33:20,446 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-04-11 20:33:20,446 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-04-11 20:33:20,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.04 08:33:20 BoogieIcfgContainer [2018-04-11 20:33:20,449 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-11 20:33:20,449 INFO L168 Benchmark]: Toolchain (without parser) took 12431.55 ms. Allocated memory was 394.8 MB in the beginning and 780.1 MB in the end (delta: 385.4 MB). Free memory was 328.3 MB in the beginning and 475.9 MB in the end (delta: -147.6 MB). Peak memory consumption was 237.8 MB. Max. memory is 5.3 GB. [2018-04-11 20:33:20,450 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 394.8 MB. Free memory is still 354.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 20:33:20,450 INFO L168 Benchmark]: CACSL2BoogieTranslator took 235.97 ms. Allocated memory is still 394.8 MB. Free memory was 324.3 MB in the beginning and 300.4 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 5.3 GB. [2018-04-11 20:33:20,450 INFO L168 Benchmark]: Boogie Preprocessor took 37.83 ms. Allocated memory is still 394.8 MB. Free memory was 300.4 MB in the beginning and 299.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-04-11 20:33:20,451 INFO L168 Benchmark]: RCFGBuilder took 437.87 ms. Allocated memory was 394.8 MB in the beginning and 608.2 MB in the end (delta: 213.4 MB). Free memory was 299.1 MB in the beginning and 541.5 MB in the end (delta: -242.5 MB). Peak memory consumption was 25.0 MB. Max. memory is 5.3 GB. [2018-04-11 20:33:20,451 INFO L168 Benchmark]: TraceAbstraction took 11717.45 ms. Allocated memory was 608.2 MB in the beginning and 780.1 MB in the end (delta: 172.0 MB). Free memory was 541.5 MB in the beginning and 475.9 MB in the end (delta: 65.7 MB). Peak memory consumption was 237.6 MB. Max. memory is 5.3 GB. [2018-04-11 20:33:20,451 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 394.8 MB. Free memory is still 354.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 235.97 ms. Allocated memory is still 394.8 MB. Free memory was 324.3 MB in the beginning and 300.4 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 37.83 ms. Allocated memory is still 394.8 MB. Free memory was 300.4 MB in the beginning and 299.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 437.87 ms. Allocated memory was 394.8 MB in the beginning and 608.2 MB in the end (delta: 213.4 MB). Free memory was 299.1 MB in the beginning and 541.5 MB in the end (delta: -242.5 MB). Peak memory consumption was 25.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 11717.45 ms. Allocated memory was 608.2 MB in the beginning and 780.1 MB in the end (delta: 172.0 MB). Free memory was 541.5 MB in the beginning and 475.9 MB in the end (delta: 65.7 MB). Peak memory consumption was 237.6 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 560]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 559]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 560]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 559]: 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: 544]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 543]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 543]: 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: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 544]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 543]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 543]: 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 - AllSpecificationsHoldResult: All specifications hold 15 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 59 locations, 15 error locations. SAFE Result, 11.6s OverallTime, 20 OverallIterations, 3 TraceHistogramMax, 6.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 640 SDtfs, 1091 SDslu, 2662 SDs, 0 SdLazy, 2854 SolverSat, 228 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 464 GetRequests, 161 SyntacticMatches, 2 SemanticMatches, 301 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1355 ImplicationChecksByTransitivity, 8.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=79occurred in iteration=14, 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, 20 MinimizatonAttempts, 108 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 634 NumberOfCodeBlocks, 634 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 608 ConstructedInterpolants, 40 QuantifiedInterpolants, 131869 SizeOfPredicates, 52 NumberOfNonLiveVariables, 933 ConjunctsInSsa, 188 ConjunctsInUnsatCore, 26 InterpolantComputations, 16 PerfectInterpolantSequences, 27/88 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_cstrcmp-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-11_20-33-20-456.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-11_20-33-20-456.csv Received shutdown request...