java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/array-memsafety/openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-453dfda-m [2018-04-09 20:22:19,919 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-09 20:22:19,920 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-09 20:22:19,935 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-04-09 20:22:19,966 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf [2018-04-09 20:22:19,990 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-09 20:22:19,990 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-09 20:22:19,991 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-04-09 20:22:19,991 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-04-09 20:22:19,992 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-04-09 20:22:19,992 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-04-09 20:22:19,992 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-04-09 20:22:19,992 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-04-09 20:22:19,993 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-04-09 20:22:19,993 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-04-09 20:22:19,993 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-04-09 20:22:19,993 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-04-09 20:22:19,994 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-09 20:22:19,994 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-09 20:22:19,994 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-09 20:22:19,994 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-09 20:22:19,994 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-09 20:22:19,994 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-09 20:22:19,995 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-09 20:22:19,995 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-04-09 20:22:19,995 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-09 20:22:19,995 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-09 20:22:19,995 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-09 20:22:19,995 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-04-09 20:22:19,996 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-04-09 20:22:19,996 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-09 20:22:19,996 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-09 20:22:19,996 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-09 20:22:19,996 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-09 20:22:19,997 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-09 20:22:19,997 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-04-09 20:22:19,997 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-04-09 20:22:19,997 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 20:22:19,997 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-04-09 20:22:19,998 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-04-09 20:22:19,998 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-04-09 20:22:19,998 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-04-09 20:22:19,999 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-04-09 20:22:20,031 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-09 20:22:20,042 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-09 20:22:20,046 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-09 20:22:20,047 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-09 20:22:20,048 INFO L276 PluginConnector]: CDTParser initialized [2018-04-09 20:22:20,048 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-09 20:22:20,337 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGddff8bf34 [2018-04-09 20:22:20,543 INFO L287 CDTParser]: IsIndexed: true [2018-04-09 20:22:20,543 INFO L288 CDTParser]: Found 1 translation units. [2018-04-09 20:22:20,544 INFO L168 CDTParser]: Scanning openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-09 20:22:20,554 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-09 20:22:20,554 INFO L215 ultiparseSymbolTable]: [2018-04-09 20:22:20,554 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-09 20:22:20,555 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 [2018-04-09 20:22:20,555 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 [2018-04-09 20:22:20,555 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-09 20:22:20,555 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 [2018-04-09 20:22:20,555 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-09 20:22:20,555 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 [2018-04-09 20:22:20,555 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 [2018-04-09 20:22:20,555 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 [2018-04-09 20:22:20,556 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 [2018-04-09 20:22:20,556 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 [2018-04-09 20:22:20,556 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 [2018-04-09 20:22:20,556 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 [2018-04-09 20:22:20,556 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 [2018-04-09 20:22:20,556 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 [2018-04-09 20:22:20,556 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 [2018-04-09 20:22:20,556 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 [2018-04-09 20:22:20,556 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 [2018-04-09 20:22:20,556 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 [2018-04-09 20:22:20,556 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 [2018-04-09 20:22:20,557 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 [2018-04-09 20:22:20,557 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 [2018-04-09 20:22:20,557 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 [2018-04-09 20:22:20,557 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 [2018-04-09 20:22:20,557 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 [2018-04-09 20:22:20,557 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 [2018-04-09 20:22:20,557 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 [2018-04-09 20:22:20,557 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 [2018-04-09 20:22:20,557 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 [2018-04-09 20:22:20,557 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 [2018-04-09 20:22:20,558 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 [2018-04-09 20:22:20,558 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 [2018-04-09 20:22:20,558 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 [2018-04-09 20:22:20,558 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 [2018-04-09 20:22:20,558 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 [2018-04-09 20:22:20,558 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 [2018-04-09 20:22:20,558 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 [2018-04-09 20:22:20,558 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 [2018-04-09 20:22:20,559 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 [2018-04-09 20:22:20,559 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 [2018-04-09 20:22:20,559 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 [2018-04-09 20:22:20,559 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 [2018-04-09 20:22:20,559 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 [2018-04-09 20:22:20,559 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 [2018-04-09 20:22:20,559 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 [2018-04-09 20:22:20,559 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 [2018-04-09 20:22:20,560 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 [2018-04-09 20:22:20,560 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 [2018-04-09 20:22:20,560 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 [2018-04-09 20:22:20,560 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 [2018-04-09 20:22:20,560 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 [2018-04-09 20:22:20,560 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 [2018-04-09 20:22:20,560 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 [2018-04-09 20:22:20,561 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 [2018-04-09 20:22:20,561 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 [2018-04-09 20:22:20,561 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 [2018-04-09 20:22:20,561 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 [2018-04-09 20:22:20,561 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 [2018-04-09 20:22:20,561 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 [2018-04-09 20:22:20,561 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 [2018-04-09 20:22:20,561 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 [2018-04-09 20:22:20,561 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 [2018-04-09 20:22:20,562 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 [2018-04-09 20:22:20,562 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 [2018-04-09 20:22:20,562 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 [2018-04-09 20:22:20,562 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 [2018-04-09 20:22:20,562 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 [2018-04-09 20:22:20,562 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 [2018-04-09 20:22:20,562 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 [2018-04-09 20:22:20,562 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 [2018-04-09 20:22:20,562 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 [2018-04-09 20:22:20,563 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 [2018-04-09 20:22:20,563 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 [2018-04-09 20:22:20,563 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 [2018-04-09 20:22:20,563 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 [2018-04-09 20:22:20,563 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 [2018-04-09 20:22:20,563 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 [2018-04-09 20:22:20,563 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 [2018-04-09 20:22:20,563 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 [2018-04-09 20:22:20,563 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 [2018-04-09 20:22:20,563 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 [2018-04-09 20:22:20,563 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 [2018-04-09 20:22:20,563 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 [2018-04-09 20:22:20,563 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 [2018-04-09 20:22:20,563 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 [2018-04-09 20:22:20,563 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 [2018-04-09 20:22:20,564 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 [2018-04-09 20:22:20,564 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 [2018-04-09 20:22:20,564 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 [2018-04-09 20:22:20,564 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 [2018-04-09 20:22:20,564 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 [2018-04-09 20:22:20,564 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 [2018-04-09 20:22:20,564 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 [2018-04-09 20:22:20,564 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 [2018-04-09 20:22:20,564 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 [2018-04-09 20:22:20,564 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 [2018-04-09 20:22:20,564 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 [2018-04-09 20:22:20,564 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 [2018-04-09 20:22:20,564 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 [2018-04-09 20:22:20,565 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 [2018-04-09 20:22:20,565 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 [2018-04-09 20:22:20,565 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 [2018-04-09 20:22:20,565 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 [2018-04-09 20:22:20,565 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 [2018-04-09 20:22:20,565 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 [2018-04-09 20:22:20,565 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 [2018-04-09 20:22:20,565 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 [2018-04-09 20:22:20,565 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 [2018-04-09 20:22:20,565 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 [2018-04-09 20:22:20,566 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 [2018-04-09 20:22:20,566 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 [2018-04-09 20:22:20,566 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 [2018-04-09 20:22:20,566 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 [2018-04-09 20:22:20,566 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 [2018-04-09 20:22:20,566 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 [2018-04-09 20:22:20,566 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 [2018-04-09 20:22:20,566 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 [2018-04-09 20:22:20,567 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 [2018-04-09 20:22:20,567 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 [2018-04-09 20:22:20,567 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 [2018-04-09 20:22:20,567 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 [2018-04-09 20:22:20,567 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 [2018-04-09 20:22:20,567 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 [2018-04-09 20:22:20,567 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 [2018-04-09 20:22:20,567 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 [2018-04-09 20:22:20,567 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 [2018-04-09 20:22:20,585 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGddff8bf34 [2018-04-09 20:22:20,590 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-09 20:22:20,592 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-09 20:22:20,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-09 20:22:20,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-09 20:22:20,600 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-09 20:22:20,601 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.04 08:22:20" (1/1) ... [2018-04-09 20:22:20,604 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52c525eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 08:22:20, skipping insertion in model container [2018-04-09 20:22:20,604 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.04 08:22:20" (1/1) ... [2018-04-09 20:22:20,619 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-09 20:22:20,649 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-09 20:22:20,830 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-09 20:22:20,877 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-09 20:22:20,885 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 112 non ball SCCs. Number of states in SCCs 112. [2018-04-09 20:22:20,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 08:22:20 WrapperNode [2018-04-09 20:22:20,931 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-09 20:22:20,932 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-09 20:22:20,932 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-09 20:22:20,932 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-09 20:22:20,947 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 08:22:20" (1/1) ... [2018-04-09 20:22:20,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 08:22:20" (1/1) ... [2018-04-09 20:22:20,965 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 08:22:20" (1/1) ... [2018-04-09 20:22:20,966 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 08:22:20" (1/1) ... [2018-04-09 20:22:20,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 08:22:20" (1/1) ... [2018-04-09 20:22:20,981 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 08:22:20" (1/1) ... [2018-04-09 20:22:20,984 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 08:22:20" (1/1) ... [2018-04-09 20:22:20,988 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-09 20:22:20,989 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-09 20:22:20,989 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-09 20:22:20,989 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-09 20:22:20,990 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 08:22:20" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-09 20:22:21,120 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-09 20:22:21,121 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-09 20:22:21,121 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-09 20:22:21,121 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-09 20:22:21,121 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmp [2018-04-09 20:22:21,121 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-09 20:22:21,121 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-09 20:22:21,122 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-09 20:22:21,122 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-09 20:22:21,122 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-09 20:22:21,122 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-09 20:22:21,122 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-09 20:22:21,122 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-09 20:22:21,122 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-09 20:22:21,123 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-09 20:22:21,123 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-09 20:22:21,123 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-09 20:22:21,123 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-09 20:22:21,123 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-09 20:22:21,123 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-09 20:22:21,123 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-09 20:22:21,124 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-09 20:22:21,124 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-09 20:22:21,124 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-09 20:22:21,124 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-09 20:22:21,124 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-09 20:22:21,124 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-09 20:22:21,125 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-09 20:22:21,125 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-09 20:22:21,125 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-09 20:22:21,125 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-09 20:22:21,125 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-09 20:22:21,125 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-09 20:22:21,125 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-09 20:22:21,125 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-09 20:22:21,126 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-09 20:22:21,126 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-09 20:22:21,126 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-09 20:22:21,126 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-09 20:22:21,126 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-09 20:22:21,126 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-09 20:22:21,126 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-09 20:22:21,127 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-09 20:22:21,127 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-09 20:22:21,127 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-09 20:22:21,127 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-09 20:22:21,127 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-09 20:22:21,127 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-09 20:22:21,127 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-09 20:22:21,127 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-09 20:22:21,128 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-09 20:22:21,128 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-09 20:22:21,128 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-09 20:22:21,128 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-09 20:22:21,128 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-09 20:22:21,128 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-09 20:22:21,128 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-09 20:22:21,128 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-09 20:22:21,129 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-09 20:22:21,129 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-09 20:22:21,129 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-09 20:22:21,129 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-09 20:22:21,129 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-09 20:22:21,129 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-09 20:22:21,129 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-09 20:22:21,129 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-09 20:22:21,130 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-09 20:22:21,130 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-09 20:22:21,130 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-09 20:22:21,130 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-09 20:22:21,130 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-09 20:22:21,130 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-09 20:22:21,130 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-09 20:22:21,130 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-09 20:22:21,131 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-09 20:22:21,131 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-09 20:22:21,131 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-09 20:22:21,131 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-09 20:22:21,131 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-09 20:22:21,131 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-09 20:22:21,131 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-09 20:22:21,131 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-09 20:22:21,132 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-09 20:22:21,132 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-09 20:22:21,132 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-09 20:22:21,132 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-09 20:22:21,132 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-09 20:22:21,132 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-09 20:22:21,132 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-09 20:22:21,133 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-09 20:22:21,133 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-09 20:22:21,133 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-09 20:22:21,133 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-09 20:22:21,133 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-09 20:22:21,133 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-09 20:22:21,133 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-09 20:22:21,133 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-09 20:22:21,134 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-09 20:22:21,134 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-09 20:22:21,134 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-09 20:22:21,134 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-09 20:22:21,134 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-09 20:22:21,134 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-09 20:22:21,134 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-09 20:22:21,134 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-09 20:22:21,135 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-09 20:22:21,135 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-09 20:22:21,135 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-09 20:22:21,135 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-09 20:22:21,135 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmp [2018-04-09 20:22:21,135 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-09 20:22:21,135 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-09 20:22:21,136 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-09 20:22:21,136 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-09 20:22:21,136 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-09 20:22:21,136 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-09 20:22:21,136 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-09 20:22:21,136 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-09 20:22:21,503 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-09 20:22:21,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.04 08:22:21 BoogieIcfgContainer [2018-04-09 20:22:21,504 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-09 20:22:21,505 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-09 20:22:21,505 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-09 20:22:21,507 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-09 20:22:21,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.04 08:22:20" (1/3) ... [2018-04-09 20:22:21,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@206c9956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.04 08:22:21, skipping insertion in model container [2018-04-09 20:22:21,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 08:22:20" (2/3) ... [2018-04-09 20:22:21,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@206c9956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.04 08:22:21, skipping insertion in model container [2018-04-09 20:22:21,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.04 08:22:21" (3/3) ... [2018-04-09 20:22:21,511 INFO L107 eAbstractionObserver]: Analyzing ICFG openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-04-09 20:22:21,517 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-09 20:22:21,524 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 15 error locations. [2018-04-09 20:22:21,568 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-09 20:22:21,568 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-09 20:22:21,568 INFO L370 AbstractCegarLoop]: Hoare is true [2018-04-09 20:22:21,568 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-09 20:22:21,568 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-09 20:22:21,568 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-09 20:22:21,569 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-09 20:22:21,569 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-09 20:22:21,569 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-09 20:22:21,569 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-09 20:22:21,582 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states. [2018-04-09 20:22:21,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-04-09 20:22:21,587 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 20:22:21,588 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 20:22:21,588 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]=== [2018-04-09 20:22:21,591 INFO L82 PathProgramCache]: Analyzing trace with hash 398232253, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 20:22:21,604 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 20:22:21,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 20:22:21,645 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 20:22:21,687 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 [2018-04-09 20:22:21,689 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:21,694 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 20:22:21,695 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-09 20:22:21,735 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-09 20:22:21,735 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:21,743 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-09 20:22:21,743 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2018-04-09 20:22:21,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 20:22:21,753 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 20:22:21,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 20:22:21,819 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 20:22:21,819 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-09 20:22:21,822 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-09 20:22:21,837 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-09 20:22:21,838 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-09 20:22:21,840 INFO L87 Difference]: Start difference. First operand 82 states. Second operand 4 states. [2018-04-09 20:22:21,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 20:22:21,947 INFO L93 Difference]: Finished difference Result 108 states and 111 transitions. [2018-04-09 20:22:21,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-09 20:22:21,948 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2018-04-09 20:22:21,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 20:22:21,957 INFO L225 Difference]: With dead ends: 108 [2018-04-09 20:22:21,958 INFO L226 Difference]: Without dead ends: 78 [2018-04-09 20:22:21,960 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-09 20:22:21,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2018-04-09 20:22:21,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2018-04-09 20:22:21,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2018-04-09 20:22:22,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 81 transitions. [2018-04-09 20:22:22,001 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 81 transitions. Word has length 19 [2018-04-09 20:22:22,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 20:22:22,001 INFO L459 AbstractCegarLoop]: Abstraction has 78 states and 81 transitions. [2018-04-09 20:22:22,001 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-09 20:22:22,002 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 81 transitions. [2018-04-09 20:22:22,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-04-09 20:22:22,002 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 20:22:22,002 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 20:22:22,002 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]=== [2018-04-09 20:22:22,003 INFO L82 PathProgramCache]: Analyzing trace with hash 398232254, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 20:22:22,009 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 20:22:22,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 20:22:22,024 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 20:22:22,033 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 [2018-04-09 20:22:22,033 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:22,042 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 [2018-04-09 20:22:22,043 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:22,048 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 20:22:22,048 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:19, output treesize:17 [2018-04-09 20:22:22,085 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 20:22:22,086 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 20:22:22,087 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 [2018-04-09 20:22:22,087 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:22,119 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 [2018-04-09 20:22:22,119 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:22,134 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 20:22:22,135 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:28, output treesize:12 [2018-04-09 20:22:22,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 20:22:22,162 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 20:22:22,257 INFO L267 ElimStorePlain]: Start of recursive call 1: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:22,257 INFO L202 ElimStorePlain]: Needed 1 recursive calls to eliminate 5 variables, input treesize:25, output treesize:3 [2018-04-09 20:22:22,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 20:22:22,286 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 20:22:22,286 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2018-04-09 20:22:22,288 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-09 20:22:22,288 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-09 20:22:22,288 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-04-09 20:22:22,288 INFO L87 Difference]: Start difference. First operand 78 states and 81 transitions. Second operand 9 states. [2018-04-09 20:22:22,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 20:22:22,496 INFO L93 Difference]: Finished difference Result 78 states and 81 transitions. [2018-04-09 20:22:22,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-09 20:22:22,497 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-04-09 20:22:22,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 20:22:22,498 INFO L225 Difference]: With dead ends: 78 [2018-04-09 20:22:22,499 INFO L226 Difference]: Without dead ends: 77 [2018-04-09 20:22:22,500 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-04-09 20:22:22,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-04-09 20:22:22,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2018-04-09 20:22:22,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-04-09 20:22:22,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 80 transitions. [2018-04-09 20:22:22,509 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 80 transitions. Word has length 19 [2018-04-09 20:22:22,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 20:22:22,510 INFO L459 AbstractCegarLoop]: Abstraction has 77 states and 80 transitions. [2018-04-09 20:22:22,510 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-09 20:22:22,510 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 80 transitions. [2018-04-09 20:22:22,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-04-09 20:22:22,511 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 20:22:22,511 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] [2018-04-09 20:22:22,511 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]=== [2018-04-09 20:22:22,511 INFO L82 PathProgramCache]: Analyzing trace with hash -539702044, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 20:22:22,520 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 20:22:22,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 20:22:22,534 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 20:22:22,541 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 [2018-04-09 20:22:22,541 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:22,545 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 20:22:22,546 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-04-09 20:22:22,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 20:22:22,572 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 20:22:22,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 20:22:22,628 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 20:22:22,628 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2018-04-09 20:22:22,628 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-09 20:22:22,629 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-09 20:22:22,629 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-04-09 20:22:22,629 INFO L87 Difference]: Start difference. First operand 77 states and 80 transitions. Second operand 7 states. [2018-04-09 20:22:22,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 20:22:22,814 INFO L93 Difference]: Finished difference Result 77 states and 80 transitions. [2018-04-09 20:22:22,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-09 20:22:22,815 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-04-09 20:22:22,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 20:22:22,817 INFO L225 Difference]: With dead ends: 77 [2018-04-09 20:22:22,817 INFO L226 Difference]: Without dead ends: 76 [2018-04-09 20:22:22,817 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-04-09 20:22:22,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-04-09 20:22:22,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2018-04-09 20:22:22,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-04-09 20:22:22,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 79 transitions. [2018-04-09 20:22:22,824 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 79 transitions. Word has length 20 [2018-04-09 20:22:22,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 20:22:22,825 INFO L459 AbstractCegarLoop]: Abstraction has 76 states and 79 transitions. [2018-04-09 20:22:22,825 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-09 20:22:22,825 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 79 transitions. [2018-04-09 20:22:22,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-04-09 20:22:22,826 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 20:22:22,826 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] [2018-04-09 20:22:22,826 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]=== [2018-04-09 20:22:22,826 INFO L82 PathProgramCache]: Analyzing trace with hash -539702045, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 20:22:22,834 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 20:22:22,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 20:22:22,850 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 20:22:22,861 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 [2018-04-09 20:22:22,861 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:22,870 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 20:22:22,870 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-09 20:22:22,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 20:22:22,905 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 20:22:22,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 20:22:22,941 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 20:22:22,942 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-09 20:22:22,942 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-09 20:22:22,942 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-09 20:22:22,942 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-09 20:22:22,942 INFO L87 Difference]: Start difference. First operand 76 states and 79 transitions. Second operand 4 states. [2018-04-09 20:22:23,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 20:22:23,013 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2018-04-09 20:22:23,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-09 20:22:23,013 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-04-09 20:22:23,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 20:22:23,014 INFO L225 Difference]: With dead ends: 76 [2018-04-09 20:22:23,014 INFO L226 Difference]: Without dead ends: 75 [2018-04-09 20:22:23,015 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-09 20:22:23,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-04-09 20:22:23,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2018-04-09 20:22:23,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-04-09 20:22:23,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 78 transitions. [2018-04-09 20:22:23,022 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 78 transitions. Word has length 20 [2018-04-09 20:22:23,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 20:22:23,022 INFO L459 AbstractCegarLoop]: Abstraction has 75 states and 78 transitions. [2018-04-09 20:22:23,022 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-09 20:22:23,023 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 78 transitions. [2018-04-09 20:22:23,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-04-09 20:22:23,023 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 20:22:23,023 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] [2018-04-09 20:22:23,024 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]=== [2018-04-09 20:22:23,024 INFO L82 PathProgramCache]: Analyzing trace with hash -1995161360, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 20:22:23,030 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 20:22:23,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 20:22:23,053 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 20:22:23,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 20:22:23,092 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 20:22:23,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 20:22:23,124 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 20:22:23,125 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2018-04-09 20:22:23,125 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-09 20:22:23,125 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-09 20:22:23,125 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-09 20:22:23,126 INFO L87 Difference]: Start difference. First operand 75 states and 78 transitions. Second operand 5 states. [2018-04-09 20:22:23,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 20:22:23,208 INFO L93 Difference]: Finished difference Result 81 states and 84 transitions. [2018-04-09 20:22:23,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-09 20:22:23,208 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2018-04-09 20:22:23,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 20:22:23,211 INFO L225 Difference]: With dead ends: 81 [2018-04-09 20:22:23,211 INFO L226 Difference]: Without dead ends: 79 [2018-04-09 20:22:23,211 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-04-09 20:22:23,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-04-09 20:22:23,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 76. [2018-04-09 20:22:23,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-04-09 20:22:23,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 80 transitions. [2018-04-09 20:22:23,218 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 80 transitions. Word has length 25 [2018-04-09 20:22:23,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 20:22:23,219 INFO L459 AbstractCegarLoop]: Abstraction has 76 states and 80 transitions. [2018-04-09 20:22:23,219 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-09 20:22:23,219 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 80 transitions. [2018-04-09 20:22:23,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-04-09 20:22:23,220 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 20:22:23,220 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] [2018-04-09 20:22:23,220 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]=== [2018-04-09 20:22:23,220 INFO L82 PathProgramCache]: Analyzing trace with hash -1995161359, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 20:22:23,226 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 20:22:23,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 20:22:23,243 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 20:22:23,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 20:22:23,344 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 20:22:23,352 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-04-09 20:22:23,353 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:23,359 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2018-04-09 20:22:23,360 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:23,362 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-09 20:22:23,363 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2018-04-09 20:22:23,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 20:22:23,396 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 20:22:23,397 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2018-04-09 20:22:23,397 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-09 20:22:23,397 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-09 20:22:23,397 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-04-09 20:22:23,397 INFO L87 Difference]: Start difference. First operand 76 states and 80 transitions. Second operand 8 states. [2018-04-09 20:22:23,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 20:22:23,568 INFO L93 Difference]: Finished difference Result 79 states and 82 transitions. [2018-04-09 20:22:23,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-09 20:22:23,568 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2018-04-09 20:22:23,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 20:22:23,569 INFO L225 Difference]: With dead ends: 79 [2018-04-09 20:22:23,569 INFO L226 Difference]: Without dead ends: 77 [2018-04-09 20:22:23,570 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2018-04-09 20:22:23,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-04-09 20:22:23,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 75. [2018-04-09 20:22:23,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-04-09 20:22:23,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 78 transitions. [2018-04-09 20:22:23,575 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 78 transitions. Word has length 25 [2018-04-09 20:22:23,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 20:22:23,575 INFO L459 AbstractCegarLoop]: Abstraction has 75 states and 78 transitions. [2018-04-09 20:22:23,575 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-09 20:22:23,575 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 78 transitions. [2018-04-09 20:22:23,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-04-09 20:22:23,576 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 20:22:23,576 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] [2018-04-09 20:22:23,576 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]=== [2018-04-09 20:22:23,576 INFO L82 PathProgramCache]: Analyzing trace with hash 200356456, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 20:22:23,584 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 20:22:23,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 20:22:23,599 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 20:22:23,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 20:22:23,622 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 20:22:23,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 20:22:23,648 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 20:22:23,648 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2018-04-09 20:22:23,649 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-09 20:22:23,649 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-09 20:22:23,649 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-09 20:22:23,649 INFO L87 Difference]: Start difference. First operand 75 states and 78 transitions. Second operand 6 states. [2018-04-09 20:22:23,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 20:22:23,710 INFO L93 Difference]: Finished difference Result 75 states and 78 transitions. [2018-04-09 20:22:23,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-09 20:22:23,710 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2018-04-09 20:22:23,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 20:22:23,711 INFO L225 Difference]: With dead ends: 75 [2018-04-09 20:22:23,711 INFO L226 Difference]: Without dead ends: 74 [2018-04-09 20:22:23,712 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-04-09 20:22:23,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-04-09 20:22:23,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2018-04-09 20:22:23,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-04-09 20:22:23,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 77 transitions. [2018-04-09 20:22:23,719 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 77 transitions. Word has length 28 [2018-04-09 20:22:23,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 20:22:23,720 INFO L459 AbstractCegarLoop]: Abstraction has 74 states and 77 transitions. [2018-04-09 20:22:23,720 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-09 20:22:23,720 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 77 transitions. [2018-04-09 20:22:23,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-04-09 20:22:23,721 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 20:22:23,721 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] [2018-04-09 20:22:23,721 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]=== [2018-04-09 20:22:23,721 INFO L82 PathProgramCache]: Analyzing trace with hash 200356457, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 20:22:23,727 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 20:22:23,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 20:22:23,744 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 20:22:23,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 20:22:23,818 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 20:22:23,824 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2018-04-09 20:22:23,825 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:23,831 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-04-09 20:22:23,831 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:23,837 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-09 20:22:23,837 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2018-04-09 20:22:23,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 20:22:23,869 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 20:22:23,869 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2018-04-09 20:22:23,870 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-09 20:22:23,870 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-09 20:22:23,870 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-04-09 20:22:23,870 INFO L87 Difference]: Start difference. First operand 74 states and 77 transitions. Second operand 9 states. [2018-04-09 20:22:24,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 20:22:24,012 INFO L93 Difference]: Finished difference Result 78 states and 81 transitions. [2018-04-09 20:22:24,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-09 20:22:24,012 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2018-04-09 20:22:24,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 20:22:24,013 INFO L225 Difference]: With dead ends: 78 [2018-04-09 20:22:24,013 INFO L226 Difference]: Without dead ends: 77 [2018-04-09 20:22:24,013 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2018-04-09 20:22:24,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-04-09 20:22:24,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2018-04-09 20:22:24,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-04-09 20:22:24,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 80 transitions. [2018-04-09 20:22:24,019 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 80 transitions. Word has length 28 [2018-04-09 20:22:24,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 20:22:24,019 INFO L459 AbstractCegarLoop]: Abstraction has 77 states and 80 transitions. [2018-04-09 20:22:24,019 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-09 20:22:24,019 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 80 transitions. [2018-04-09 20:22:24,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-04-09 20:22:24,020 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 20:22:24,020 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 20:22:24,020 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]=== [2018-04-09 20:22:24,020 INFO L82 PathProgramCache]: Analyzing trace with hash 2083560446, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 20:22:24,027 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 20:22:24,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 20:22:24,046 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 20:22:24,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 20:22:24,062 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 20:22:24,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 20:22:24,089 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 20:22:24,089 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2018-04-09 20:22:24,089 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-09 20:22:24,089 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-09 20:22:24,089 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-09 20:22:24,090 INFO L87 Difference]: Start difference. First operand 77 states and 80 transitions. Second operand 6 states. [2018-04-09 20:22:24,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 20:22:24,147 INFO L93 Difference]: Finished difference Result 77 states and 80 transitions. [2018-04-09 20:22:24,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-09 20:22:24,147 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2018-04-09 20:22:24,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 20:22:24,148 INFO L225 Difference]: With dead ends: 77 [2018-04-09 20:22:24,149 INFO L226 Difference]: Without dead ends: 75 [2018-04-09 20:22:24,149 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-04-09 20:22:24,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-04-09 20:22:24,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2018-04-09 20:22:24,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-04-09 20:22:24,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 78 transitions. [2018-04-09 20:22:24,155 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 78 transitions. Word has length 35 [2018-04-09 20:22:24,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 20:22:24,156 INFO L459 AbstractCegarLoop]: Abstraction has 75 states and 78 transitions. [2018-04-09 20:22:24,156 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-09 20:22:24,156 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 78 transitions. [2018-04-09 20:22:24,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-04-09 20:22:24,157 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 20:22:24,157 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 20:22:24,157 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]=== [2018-04-09 20:22:24,158 INFO L82 PathProgramCache]: Analyzing trace with hash 2083560447, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 20:22:24,164 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 20:22:24,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 20:22:24,183 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 20:22:24,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 20:22:24,224 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 20:22:24,259 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-04-09 20:22:24,260 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:24,261 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 20:22:24,261 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:3 [2018-04-09 20:22:24,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 20:22:24,299 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 20:22:24,299 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 10 [2018-04-09 20:22:24,299 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-04-09 20:22:24,299 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-04-09 20:22:24,299 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2018-04-09 20:22:24,299 INFO L87 Difference]: Start difference. First operand 75 states and 78 transitions. Second operand 11 states. [2018-04-09 20:22:24,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 20:22:24,401 INFO L93 Difference]: Finished difference Result 77 states and 80 transitions. [2018-04-09 20:22:24,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-09 20:22:24,402 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 35 [2018-04-09 20:22:24,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 20:22:24,402 INFO L225 Difference]: With dead ends: 77 [2018-04-09 20:22:24,402 INFO L226 Difference]: Without dead ends: 76 [2018-04-09 20:22:24,403 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-04-09 20:22:24,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-04-09 20:22:24,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 74. [2018-04-09 20:22:24,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-04-09 20:22:24,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 77 transitions. [2018-04-09 20:22:24,407 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 77 transitions. Word has length 35 [2018-04-09 20:22:24,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 20:22:24,407 INFO L459 AbstractCegarLoop]: Abstraction has 74 states and 77 transitions. [2018-04-09 20:22:24,408 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-04-09 20:22:24,408 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 77 transitions. [2018-04-09 20:22:24,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-04-09 20:22:24,409 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 20:22:24,409 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 20:22:24,409 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]=== [2018-04-09 20:22:24,409 INFO L82 PathProgramCache]: Analyzing trace with hash -248041810, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 20:22:24,418 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 20:22:24,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 20:22:24,444 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 20:22:24,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 20:22:24,480 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 20:22:24,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 20:22:24,513 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 20:22:24,513 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2018-04-09 20:22:24,513 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-09 20:22:24,513 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-09 20:22:24,514 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-09 20:22:24,514 INFO L87 Difference]: Start difference. First operand 74 states and 77 transitions. Second operand 7 states. [2018-04-09 20:22:24,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 20:22:24,675 INFO L93 Difference]: Finished difference Result 74 states and 77 transitions. [2018-04-09 20:22:24,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-09 20:22:24,676 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2018-04-09 20:22:24,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 20:22:24,677 INFO L225 Difference]: With dead ends: 74 [2018-04-09 20:22:24,677 INFO L226 Difference]: Without dead ends: 73 [2018-04-09 20:22:24,677 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-04-09 20:22:24,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-04-09 20:22:24,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2018-04-09 20:22:24,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-04-09 20:22:24,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 76 transitions. [2018-04-09 20:22:24,681 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 76 transitions. Word has length 36 [2018-04-09 20:22:24,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 20:22:24,681 INFO L459 AbstractCegarLoop]: Abstraction has 73 states and 76 transitions. [2018-04-09 20:22:24,681 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-09 20:22:24,681 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 76 transitions. [2018-04-09 20:22:24,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-04-09 20:22:24,682 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 20:22:24,682 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 20:22:24,682 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]=== [2018-04-09 20:22:24,683 INFO L82 PathProgramCache]: Analyzing trace with hash -248041809, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 20:22:24,693 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 20:22:24,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 20:22:24,716 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 20:22:24,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 20:22:24,836 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 20:22:24,926 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-04-09 20:22:24,927 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:24,928 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 20:22:24,928 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:3 [2018-04-09 20:22:24,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 20:22:24,966 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 20:22:24,966 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2018-04-09 20:22:24,967 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-09 20:22:24,967 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-09 20:22:24,967 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2018-04-09 20:22:24,967 INFO L87 Difference]: Start difference. First operand 73 states and 76 transitions. Second operand 15 states. [2018-04-09 20:22:25,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 20:22:25,309 INFO L93 Difference]: Finished difference Result 107 states and 112 transitions. [2018-04-09 20:22:25,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-09 20:22:25,309 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 36 [2018-04-09 20:22:25,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 20:22:25,310 INFO L225 Difference]: With dead ends: 107 [2018-04-09 20:22:25,310 INFO L226 Difference]: Without dead ends: 106 [2018-04-09 20:22:25,311 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=110, Invalid=490, Unknown=0, NotChecked=0, Total=600 [2018-04-09 20:22:25,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2018-04-09 20:22:25,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 81. [2018-04-09 20:22:25,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-04-09 20:22:25,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 85 transitions. [2018-04-09 20:22:25,315 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 85 transitions. Word has length 36 [2018-04-09 20:22:25,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 20:22:25,316 INFO L459 AbstractCegarLoop]: Abstraction has 81 states and 85 transitions. [2018-04-09 20:22:25,316 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-09 20:22:25,316 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 85 transitions. [2018-04-09 20:22:25,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-04-09 20:22:25,317 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 20:22:25,317 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 20:22:25,317 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]=== [2018-04-09 20:22:25,317 INFO L82 PathProgramCache]: Analyzing trace with hash -717242792, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 20:22:25,324 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 20:22:25,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 20:22:25,341 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 20:22:25,346 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 [2018-04-09 20:22:25,346 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:25,353 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 20:22:25,354 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-09 20:22:25,364 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 20:22:25,365 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 20:22:25,365 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 [2018-04-09 20:22:25,366 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:25,368 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 20:22:25,368 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:8 [2018-04-09 20:22:25,391 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-04-09 20:22:25,393 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 [2018-04-09 20:22:25,393 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:25,395 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 20:22:25,401 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. [2018-04-09 20:22:25,402 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:25 [2018-04-09 20:22:25,430 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 26 [2018-04-09 20:22:25,434 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 [2018-04-09 20:22:25,434 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:25,441 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 20:22:25,454 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-04-09 20:22:25,454 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:39, output treesize:35 [2018-04-09 20:22:25,647 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2018-04-09 20:22:25,651 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2018-04-09 20:22:25,652 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:25,673 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 13 [2018-04-09 20:22:25,673 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-09 20:22:25,682 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-09 20:22:25,695 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-09 20:22:25,696 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:52, output treesize:29 [2018-04-09 20:22:25,749 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 20:22:25,749 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 20:22:25,951 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-04-09 20:22:25,952 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:25,958 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-04-09 20:22:25,968 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-04-09 20:22:25,968 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:25,969 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 20:22:25,975 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-09 20:22:25,975 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:35, output treesize:7 [2018-04-09 20:22:26,004 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 20:22:26,028 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 20:22:26,028 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 22 [2018-04-09 20:22:26,028 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-04-09 20:22:26,029 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-04-09 20:22:26,029 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=439, Unknown=0, NotChecked=0, Total=506 [2018-04-09 20:22:26,029 INFO L87 Difference]: Start difference. First operand 81 states and 85 transitions. Second operand 23 states. [2018-04-09 20:22:26,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 20:22:26,823 INFO L93 Difference]: Finished difference Result 127 states and 133 transitions. [2018-04-09 20:22:26,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-09 20:22:26,823 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 40 [2018-04-09 20:22:26,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 20:22:26,824 INFO L225 Difference]: With dead ends: 127 [2018-04-09 20:22:26,824 INFO L226 Difference]: Without dead ends: 126 [2018-04-09 20:22:26,825 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 56 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=233, Invalid=1249, Unknown=0, NotChecked=0, Total=1482 [2018-04-09 20:22:26,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2018-04-09 20:22:26,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 92. [2018-04-09 20:22:26,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2018-04-09 20:22:26,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 97 transitions. [2018-04-09 20:22:26,830 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 97 transitions. Word has length 40 [2018-04-09 20:22:26,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 20:22:26,830 INFO L459 AbstractCegarLoop]: Abstraction has 92 states and 97 transitions. [2018-04-09 20:22:26,831 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-04-09 20:22:26,831 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 97 transitions. [2018-04-09 20:22:26,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-04-09 20:22:26,832 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 20:22:26,832 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 20:22:26,832 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]=== [2018-04-09 20:22:26,832 INFO L82 PathProgramCache]: Analyzing trace with hash 82274210, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 20:22:26,841 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 20:22:26,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 20:22:26,863 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 20:22:26,879 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 [2018-04-09 20:22:26,881 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 [2018-04-09 20:22:26,881 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:26,883 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 20:22:26,888 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. [2018-04-09 20:22:26,888 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:21 [2018-04-09 20:22:27,061 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 [2018-04-09 20:22:27,064 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 [2018-04-09 20:22:27,065 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:27,083 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 [2018-04-09 20:22:27,084 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-09 20:22:27,110 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 [2018-04-09 20:22:27,111 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-04-09 20:22:27,124 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-04-09 20:22:27,147 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-09 20:22:27,147 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:49, output treesize:29 [2018-04-09 20:22:27,230 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 20:22:27,230 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 20:22:27,650 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-04-09 20:22:27,650 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:27,665 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2018-04-09 20:22:27,695 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2018-04-09 20:22:27,696 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:27,710 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 15 [2018-04-09 20:22:27,710 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:27,715 INFO L267 ElimStorePlain]: Start of recursive call 3: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 20:22:27,723 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-09 20:22:27,723 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:69, output treesize:7 [2018-04-09 20:22:27,734 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 20:22:27,755 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 20:22:27,755 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2018-04-09 20:22:27,755 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-04-09 20:22:27,755 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-04-09 20:22:27,756 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=620, Unknown=0, NotChecked=0, Total=702 [2018-04-09 20:22:27,756 INFO L87 Difference]: Start difference. First operand 92 states and 97 transitions. Second operand 27 states. [2018-04-09 20:22:29,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 20:22:29,186 INFO L93 Difference]: Finished difference Result 105 states and 111 transitions. [2018-04-09 20:22:29,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-04-09 20:22:29,186 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 43 [2018-04-09 20:22:29,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 20:22:29,186 INFO L225 Difference]: With dead ends: 105 [2018-04-09 20:22:29,186 INFO L226 Difference]: Without dead ends: 104 [2018-04-09 20:22:29,187 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=290, Invalid=1872, Unknown=0, NotChecked=0, Total=2162 [2018-04-09 20:22:29,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-04-09 20:22:29,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 95. [2018-04-09 20:22:29,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2018-04-09 20:22:29,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 100 transitions. [2018-04-09 20:22:29,194 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 100 transitions. Word has length 43 [2018-04-09 20:22:29,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 20:22:29,195 INFO L459 AbstractCegarLoop]: Abstraction has 95 states and 100 transitions. [2018-04-09 20:22:29,195 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-04-09 20:22:29,195 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 100 transitions. [2018-04-09 20:22:29,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-04-09 20:22:29,195 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 20:22:29,196 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 20:22:29,196 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]=== [2018-04-09 20:22:29,196 INFO L82 PathProgramCache]: Analyzing trace with hash 973533713, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 20:22:29,201 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 20:22:29,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 20:22:29,220 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 20:22:29,244 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 20:22:29,245 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-04-09 20:22:29,258 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 20:22:29,259 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-09 20:22:29,259 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:29,264 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 20:22:29,268 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-09 20:22:29,268 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-09 20:22:29,301 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc12.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc12.base| 1))) (and (= (select .cse0 |c_main_#t~malloc13.base|) 0) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc13.base| 1) |main_#t~malloc12.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc12.base|))))) is different from true [2018-04-09 20:22:29,309 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc13.base| Int) (|main_#t~malloc12.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc12.base| 1))) (and (= (select .cse0 |main_#t~malloc13.base|) 0) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc13.base| 1) |main_#t~malloc12.base| 0) |main_#t~malloc13.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc12.base|))))) is different from true [2018-04-09 20:22:29,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 20:22:29,318 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 20:22:29,342 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc13.base_16| Int)) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc13.base_16|))) (= (store (store (store |c_#valid| |v_main_#t~malloc13.base_16| 1) |c_main_#t~malloc12.base| 0) |v_main_#t~malloc13.base_16| 0) |c_old(#valid)|))) is different from false [2018-04-09 20:22:29,346 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc13.base_16| Int) (|v_main_#t~malloc12.base_15| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc12.base_15| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc13.base_16| 1) |v_main_#t~malloc12.base_15| 0) |v_main_#t~malloc13.base_16| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc12.base_15|))) (not (= (select .cse0 |v_main_#t~malloc13.base_16|) 0))))) is different from false [2018-04-09 20:22:29,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 20:22:29,398 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 20:22:29,398 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-09 20:22:29,398 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-09 20:22:29,398 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-09 20:22:29,399 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-09 20:22:29,399 INFO L87 Difference]: Start difference. First operand 95 states and 100 transitions. Second operand 12 states. [2018-04-09 20:22:29,414 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc13.base_16| Int) (|v_main_#t~malloc12.base_15| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc12.base_15| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc13.base_16| 1) |v_main_#t~malloc12.base_15| 0) |v_main_#t~malloc13.base_16| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc12.base_15|))) (not (= (select .cse0 |v_main_#t~malloc13.base_16|) 0)))))) is different from false [2018-04-09 20:22:29,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 20:22:29,673 INFO L93 Difference]: Finished difference Result 175 states and 184 transitions. [2018-04-09 20:22:29,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-09 20:22:29,673 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 49 [2018-04-09 20:22:29,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 20:22:29,674 INFO L225 Difference]: With dead ends: 175 [2018-04-09 20:22:29,674 INFO L226 Difference]: Without dead ends: 150 [2018-04-09 20:22:29,674 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 87 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-04-09 20:22:29,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2018-04-09 20:22:29,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 147. [2018-04-09 20:22:29,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2018-04-09 20:22:29,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 156 transitions. [2018-04-09 20:22:29,683 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 156 transitions. Word has length 49 [2018-04-09 20:22:29,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 20:22:29,683 INFO L459 AbstractCegarLoop]: Abstraction has 147 states and 156 transitions. [2018-04-09 20:22:29,683 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-09 20:22:29,683 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 156 transitions. [2018-04-09 20:22:29,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-04-09 20:22:29,684 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 20:22:29,684 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 20:22:29,684 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]=== [2018-04-09 20:22:29,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1077272336, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 20:22:29,689 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 20:22:29,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 20:22:29,708 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 20:22:29,737 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 20:22:29,738 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-04-09 20:22:29,740 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-04-09 20:22:29,740 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:29,743 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 20:22:29,747 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-09 20:22:29,747 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-09 20:22:29,785 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc12.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc12.base| 1))) (and (= (select .cse0 |c_main_#t~malloc13.base|) 0) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc13.base| 1) |main_#t~malloc12.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc12.base|))))) is different from true [2018-04-09 20:22:29,795 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc13.base| Int) (|main_#t~malloc12.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc12.base| 1))) (and (= (select .cse0 |main_#t~malloc13.base|) 0) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc13.base| 1) |main_#t~malloc12.base| 0) |main_#t~malloc13.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc12.base|))))) is different from true [2018-04-09 20:22:29,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 20:22:29,801 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 20:22:29,827 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc13.base_18| Int)) (or (= |c_old(#valid)| (store (store (store |c_#valid| |v_main_#t~malloc13.base_18| 1) |c_main_#t~malloc12.base| 0) |v_main_#t~malloc13.base_18| 0)) (not (= (select |c_#valid| |v_main_#t~malloc13.base_18|) 0)))) is different from false [2018-04-09 20:22:29,832 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc12.base_17| Int) (|v_main_#t~malloc13.base_18| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc12.base_17| 1))) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc12.base_17|))) (= (store (store (store .cse0 |v_main_#t~malloc13.base_18| 1) |v_main_#t~malloc12.base_17| 0) |v_main_#t~malloc13.base_18| 0) |c_old(#valid)|) (not (= (select .cse0 |v_main_#t~malloc13.base_18|) 0))))) is different from false [2018-04-09 20:22:29,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 20:22:29,887 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 20:22:29,887 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-09 20:22:29,888 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-09 20:22:29,888 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-09 20:22:29,888 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-09 20:22:29,888 INFO L87 Difference]: Start difference. First operand 147 states and 156 transitions. Second operand 12 states. [2018-04-09 20:22:29,920 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc12.base_17| Int) (|v_main_#t~malloc13.base_18| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc12.base_17| 1))) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc12.base_17|))) (= (store (store (store .cse0 |v_main_#t~malloc13.base_18| 1) |v_main_#t~malloc12.base_17| 0) |v_main_#t~malloc13.base_18| 0) |c_old(#valid)|) (not (= (select .cse0 |v_main_#t~malloc13.base_18|) 0)))))) is different from false [2018-04-09 20:22:30,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 20:22:30,366 INFO L93 Difference]: Finished difference Result 226 states and 238 transitions. [2018-04-09 20:22:30,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-09 20:22:30,367 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 50 [2018-04-09 20:22:30,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 20:22:30,368 INFO L225 Difference]: With dead ends: 226 [2018-04-09 20:22:30,368 INFO L226 Difference]: Without dead ends: 201 [2018-04-09 20:22:30,368 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 89 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-04-09 20:22:30,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2018-04-09 20:22:30,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 146. [2018-04-09 20:22:30,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2018-04-09 20:22:30,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 154 transitions. [2018-04-09 20:22:30,377 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 154 transitions. Word has length 50 [2018-04-09 20:22:30,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 20:22:30,377 INFO L459 AbstractCegarLoop]: Abstraction has 146 states and 154 transitions. [2018-04-09 20:22:30,377 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-09 20:22:30,378 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 154 transitions. [2018-04-09 20:22:30,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-04-09 20:22:30,378 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 20:22:30,378 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 20:22:30,378 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]=== [2018-04-09 20:22:30,379 INFO L82 PathProgramCache]: Analyzing trace with hash -241288907, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 20:22:30,388 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 20:22:30,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 20:22:30,410 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 20:22:30,442 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 20:22:30,443 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-04-09 20:22:30,445 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 20:22:30,446 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-09 20:22:30,446 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:30,450 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 20:22:30,454 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-09 20:22:30,454 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-09 20:22:30,479 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc12.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc12.base| 1))) (and (= (select .cse0 |c_main_#t~malloc13.base|) 0) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc13.base| 1) |main_#t~malloc12.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc12.base|))))) is different from true [2018-04-09 20:22:30,482 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc13.base| Int) (|main_#t~malloc12.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc12.base| 1))) (and (= (select .cse0 |main_#t~malloc13.base|) 0) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc13.base| 1) |main_#t~malloc12.base| 0) |main_#t~malloc13.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc12.base|))))) is different from true [2018-04-09 20:22:30,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 20:22:30,489 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 20:22:30,506 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc13.base_20| Int)) (or (= (store (store (store |c_#valid| |v_main_#t~malloc13.base_20| 1) |c_main_#t~malloc12.base| 0) |v_main_#t~malloc13.base_20| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc13.base_20|))))) is different from false [2018-04-09 20:22:30,510 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc12.base_19| Int) (|v_main_#t~malloc13.base_20| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc12.base_19| 1))) (or (not (= 0 (select .cse0 |v_main_#t~malloc13.base_20|))) (= |c_old(#valid)| (store (store (store .cse0 |v_main_#t~malloc13.base_20| 1) |v_main_#t~malloc12.base_19| 0) |v_main_#t~malloc13.base_20| 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc12.base_19|)))))) is different from false [2018-04-09 20:22:30,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 20:22:30,541 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 20:22:30,541 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-09 20:22:30,542 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-09 20:22:30,542 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-09 20:22:30,542 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-09 20:22:30,542 INFO L87 Difference]: Start difference. First operand 146 states and 154 transitions. Second operand 12 states. [2018-04-09 20:22:30,558 WARN L1011 $PredicateComparison]: unable to prove that (and (forall ((|v_main_#t~malloc12.base_19| Int) (|v_main_#t~malloc13.base_20| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc12.base_19| 1))) (or (not (= 0 (select .cse0 |v_main_#t~malloc13.base_20|))) (= |c_old(#valid)| (store (store (store .cse0 |v_main_#t~malloc13.base_20| 1) |v_main_#t~malloc12.base_19| 0) |v_main_#t~malloc13.base_20| 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc12.base_19|)))))) (= |c_#valid| |c_old(#valid)|)) is different from false [2018-04-09 20:22:30,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 20:22:30,837 INFO L93 Difference]: Finished difference Result 227 states and 239 transitions. [2018-04-09 20:22:30,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-09 20:22:30,837 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 50 [2018-04-09 20:22:30,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 20:22:30,838 INFO L225 Difference]: With dead ends: 227 [2018-04-09 20:22:30,838 INFO L226 Difference]: Without dead ends: 202 [2018-04-09 20:22:30,839 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 89 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-04-09 20:22:30,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2018-04-09 20:22:30,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 148. [2018-04-09 20:22:30,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-04-09 20:22:30,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 157 transitions. [2018-04-09 20:22:30,853 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 157 transitions. Word has length 50 [2018-04-09 20:22:30,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 20:22:30,853 INFO L459 AbstractCegarLoop]: Abstraction has 148 states and 157 transitions. [2018-04-09 20:22:30,853 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-09 20:22:30,853 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 157 transitions. [2018-04-09 20:22:30,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-04-09 20:22:30,854 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 20:22:30,854 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 20:22:30,854 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]=== [2018-04-09 20:22:30,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1320358890, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 20:22:30,863 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 20:22:30,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 20:22:30,882 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 20:22:30,911 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 20:22:30,912 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-04-09 20:22:30,914 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-04-09 20:22:30,915 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:30,918 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 20:22:30,922 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-09 20:22:30,922 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-09 20:22:30,952 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc12.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc12.base| 1))) (and (= (select .cse0 |c_main_#t~malloc13.base|) 0) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc13.base| 1) |main_#t~malloc12.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc12.base|))))) is different from true [2018-04-09 20:22:30,957 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc13.base| Int) (|main_#t~malloc12.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc12.base| 1))) (and (= (select .cse0 |main_#t~malloc13.base|) 0) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc13.base| 1) |main_#t~malloc12.base| 0) |main_#t~malloc13.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc12.base|))))) is different from true [2018-04-09 20:22:30,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 20:22:30,966 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 20:22:31,009 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc13.base_22| Int)) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc13.base_22|))) (= (store (store (store |c_#valid| |v_main_#t~malloc13.base_22| 1) |c_main_#t~malloc12.base| 0) |v_main_#t~malloc13.base_22| 0) |c_old(#valid)|))) is different from false [2018-04-09 20:22:31,012 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc13.base_22| Int) (|v_main_#t~malloc12.base_21| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc12.base_21| 1))) (or (not (= (select .cse0 |v_main_#t~malloc13.base_22|) 0)) (= (store (store (store .cse0 |v_main_#t~malloc13.base_22| 1) |v_main_#t~malloc12.base_21| 0) |v_main_#t~malloc13.base_22| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc12.base_21|)))))) is different from false [2018-04-09 20:22:31,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 20:22:31,049 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 20:22:31,050 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-09 20:22:31,050 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-09 20:22:31,050 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-09 20:22:31,050 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-09 20:22:31,050 INFO L87 Difference]: Start difference. First operand 148 states and 157 transitions. Second operand 12 states. [2018-04-09 20:22:31,063 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc13.base_22| Int) (|v_main_#t~malloc12.base_21| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc12.base_21| 1))) (or (not (= (select .cse0 |v_main_#t~malloc13.base_22|) 0)) (= (store (store (store .cse0 |v_main_#t~malloc13.base_22| 1) |v_main_#t~malloc12.base_21| 0) |v_main_#t~malloc13.base_22| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc12.base_21|))))))) is different from false [2018-04-09 20:22:31,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 20:22:31,341 INFO L93 Difference]: Finished difference Result 151 states and 157 transitions. [2018-04-09 20:22:31,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-09 20:22:31,342 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 51 [2018-04-09 20:22:31,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 20:22:31,343 INFO L225 Difference]: With dead ends: 151 [2018-04-09 20:22:31,343 INFO L226 Difference]: Without dead ends: 126 [2018-04-09 20:22:31,343 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 91 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-04-09 20:22:31,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2018-04-09 20:22:31,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 70. [2018-04-09 20:22:31,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2018-04-09 20:22:31,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 72 transitions. [2018-04-09 20:22:31,350 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 72 transitions. Word has length 51 [2018-04-09 20:22:31,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 20:22:31,351 INFO L459 AbstractCegarLoop]: Abstraction has 70 states and 72 transitions. [2018-04-09 20:22:31,351 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-09 20:22:31,351 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 72 transitions. [2018-04-09 20:22:31,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-04-09 20:22:31,351 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 20:22:31,351 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 20:22:31,351 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]=== [2018-04-09 20:22:31,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1033561368, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 20:22:31,360 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 20:22:31,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 20:22:31,381 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 20:22:31,433 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 20:22:31,433 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 20:22:31,466 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 18 [2018-04-09 20:22:31,467 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2018-04-09 20:22:31,474 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2018-04-09 20:22:31,474 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:31,477 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-04-09 20:22:31,478 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:12 [2018-04-09 20:22:31,517 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 20:22:31,539 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 20:22:31,539 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2018-04-09 20:22:31,539 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-04-09 20:22:31,539 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-04-09 20:22:31,539 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2018-04-09 20:22:31,540 INFO L87 Difference]: Start difference. First operand 70 states and 72 transitions. Second operand 14 states. [2018-04-09 20:22:31,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 20:22:31,726 INFO L93 Difference]: Finished difference Result 70 states and 72 transitions. [2018-04-09 20:22:31,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-09 20:22:31,727 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 51 [2018-04-09 20:22:31,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 20:22:31,728 INFO L225 Difference]: With dead ends: 70 [2018-04-09 20:22:31,728 INFO L226 Difference]: Without dead ends: 62 [2018-04-09 20:22:31,728 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2018-04-09 20:22:31,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-04-09 20:22:31,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2018-04-09 20:22:31,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-04-09 20:22:31,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 64 transitions. [2018-04-09 20:22:31,737 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 64 transitions. Word has length 51 [2018-04-09 20:22:31,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 20:22:31,738 INFO L459 AbstractCegarLoop]: Abstraction has 62 states and 64 transitions. [2018-04-09 20:22:31,738 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-04-09 20:22:31,738 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 64 transitions. [2018-04-09 20:22:31,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-04-09 20:22:31,738 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 20:22:31,739 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 20:22:31,739 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]=== [2018-04-09 20:22:31,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1220208145, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 20:22:31,747 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 20:22:31,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 20:22:31,773 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 20:22:31,777 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 [2018-04-09 20:22:31,777 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:31,782 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 [2018-04-09 20:22:31,782 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:31,786 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 20:22:31,786 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-09 20:22:31,796 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 20:22:31,797 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 [2018-04-09 20:22:31,797 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:31,804 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 20:22:31,805 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 20:22:31,805 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 [2018-04-09 20:22:31,806 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:31,810 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 20:22:31,810 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2018-04-09 20:22:31,831 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 [2018-04-09 20:22:31,833 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 [2018-04-09 20:22:31,833 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:31,834 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 20:22:31,837 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-09 20:22:31,838 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:25, output treesize:21 [2018-04-09 20:22:31,850 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 [2018-04-09 20:22:31,851 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 [2018-04-09 20:22:31,852 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:31,855 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 20:22:31,860 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. [2018-04-09 20:22:31,860 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:28 [2018-04-09 20:22:32,113 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 [2018-04-09 20:22:32,137 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 [2018-04-09 20:22:32,138 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-09 20:22:32,170 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 [2018-04-09 20:22:32,170 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:32,185 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-09 20:22:32,197 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-09 20:22:32,197 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:45, output treesize:32 [2018-04-09 20:22:32,262 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 20:22:32,262 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 20:22:32,736 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2018-04-09 20:22:32,745 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2018-04-09 20:22:32,745 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:32,746 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 20:22:32,752 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-09 20:22:32,752 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:33, output treesize:35 [2018-04-09 20:22:33,279 WARN L148 SmtUtils]: Spent 453ms on a formula simplification that was a NOOP. DAG size: 34 [2018-04-09 20:22:33,555 WARN L148 SmtUtils]: Spent 234ms on a formula simplification that was a NOOP. DAG size: 34 [2018-04-09 20:22:33,569 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 20:22:33,596 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 20:22:33,596 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15] total 31 [2018-04-09 20:22:33,597 INFO L442 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-04-09 20:22:33,597 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-04-09 20:22:33,597 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=881, Unknown=0, NotChecked=0, Total=992 [2018-04-09 20:22:33,597 INFO L87 Difference]: Start difference. First operand 62 states and 64 transitions. Second operand 32 states. [2018-04-09 20:22:38,879 WARN L151 SmtUtils]: Spent 4607ms on a formula simplification. DAG size of input: 60 DAG size of output 50 [2018-04-09 20:22:39,408 WARN L151 SmtUtils]: Spent 498ms on a formula simplification. DAG size of input: 64 DAG size of output 54 [2018-04-09 20:22:39,707 WARN L151 SmtUtils]: Spent 203ms on a formula simplification. DAG size of input: 58 DAG size of output 48 [2018-04-09 20:22:39,952 WARN L151 SmtUtils]: Spent 174ms on a formula simplification. DAG size of input: 37 DAG size of output 33 [2018-04-09 20:22:42,290 WARN L151 SmtUtils]: Spent 2293ms on a formula simplification. DAG size of input: 51 DAG size of output 43 [2018-04-09 20:22:45,383 WARN L151 SmtUtils]: Spent 156ms on a formula simplification. DAG size of input: 41 DAG size of output 37 [2018-04-09 20:22:45,549 WARN L151 SmtUtils]: Spent 128ms on a formula simplification. DAG size of input: 52 DAG size of output 46 [2018-04-09 20:22:45,943 WARN L151 SmtUtils]: Spent 364ms on a formula simplification. DAG size of input: 58 DAG size of output 39 [2018-04-09 20:22:48,522 WARN L151 SmtUtils]: Spent 1447ms on a formula simplification. DAG size of input: 56 DAG size of output 45 [2018-04-09 20:22:48,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 20:22:48,673 INFO L93 Difference]: Finished difference Result 68 states and 70 transitions. [2018-04-09 20:22:48,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-04-09 20:22:48,674 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 55 [2018-04-09 20:22:48,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 20:22:48,674 INFO L225 Difference]: With dead ends: 68 [2018-04-09 20:22:48,674 INFO L226 Difference]: Without dead ends: 67 [2018-04-09 20:22:48,675 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 79 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 13.1s TimeCoverageRelationStatistics Valid=415, Invalid=2035, Unknown=0, NotChecked=0, Total=2450 [2018-04-09 20:22:48,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-04-09 20:22:48,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 61. [2018-04-09 20:22:48,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-04-09 20:22:48,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 63 transitions. [2018-04-09 20:22:48,682 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 63 transitions. Word has length 55 [2018-04-09 20:22:48,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 20:22:48,682 INFO L459 AbstractCegarLoop]: Abstraction has 61 states and 63 transitions. [2018-04-09 20:22:48,683 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-04-09 20:22:48,683 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 63 transitions. [2018-04-09 20:22:48,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-04-09 20:22:48,683 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 20:22:48,683 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 20:22:48,683 INFO L408 AbstractCegarLoop]: === Iteration 21 === [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]=== [2018-04-09 20:22:48,683 INFO L82 PathProgramCache]: Analyzing trace with hash -1382352567, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 20:22:48,689 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 20:22:48,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 20:22:48,710 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 20:22:48,712 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 [2018-04-09 20:22:48,712 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:48,715 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 20:22:48,715 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-09 20:22:48,724 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-04-09 20:22:48,725 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 [2018-04-09 20:22:48,725 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:48,726 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 20:22:48,727 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-09 20:22:48,727 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:11 [2018-04-09 20:22:48,873 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 32 treesize of output 32 [2018-04-09 20:22:48,886 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 24 treesize of output 27 [2018-04-09 20:22:48,886 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-09 20:22:48,898 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 28 treesize of output 21 [2018-04-09 20:22:48,898 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:48,914 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 21 treesize of output 19 [2018-04-09 20:22:48,915 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-04-09 20:22:48,926 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-04-09 20:22:48,937 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-09 20:22:48,937 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:40, output treesize:32 [2018-04-09 20:22:48,995 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 12 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 20:22:48,996 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 20:22:50,028 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2018-04-09 20:22:50,058 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 15 [2018-04-09 20:22:50,059 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 20:22:50,065 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 20:22:50,072 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-09 20:22:50,073 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:65, output treesize:35 [2018-04-09 20:22:50,156 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 20:22:50,177 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 20:22:50,177 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 20] total 37 [2018-04-09 20:22:50,178 INFO L442 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-04-09 20:22:50,178 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-04-09 20:22:50,178 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=1245, Unknown=0, NotChecked=0, Total=1406 [2018-04-09 20:22:50,179 INFO L87 Difference]: Start difference. First operand 61 states and 63 transitions. Second operand 38 states. [2018-04-09 20:22:51,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 20:22:51,447 INFO L93 Difference]: Finished difference Result 65 states and 67 transitions. [2018-04-09 20:22:51,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-04-09 20:22:51,447 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 58 [2018-04-09 20:22:51,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 20:22:51,448 INFO L225 Difference]: With dead ends: 65 [2018-04-09 20:22:51,448 INFO L226 Difference]: Without dead ends: 0 [2018-04-09 20:22:51,449 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 688 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=700, Invalid=3206, Unknown=0, NotChecked=0, Total=3906 [2018-04-09 20:22:51,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-04-09 20:22:51,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-04-09 20:22:51,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-04-09 20:22:51,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-04-09 20:22:51,449 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2018-04-09 20:22:51,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 20:22:51,450 INFO L459 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-04-09 20:22:51,450 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-04-09 20:22:51,450 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-04-09 20:22:51,450 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-04-09 20:22:51,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-04-09 20:22:51,644 WARN L151 SmtUtils]: Spent 156ms on a formula simplification. DAG size of input: 191 DAG size of output 184 [2018-04-09 20:23:01,872 WARN L151 SmtUtils]: Spent 10108ms on a formula simplification. DAG size of input: 222 DAG size of output 98 [2018-04-09 20:23:02,583 WARN L151 SmtUtils]: Spent 709ms on a formula simplification. DAG size of input: 163 DAG size of output 1 [2018-04-09 20:23:03,400 WARN L151 SmtUtils]: Spent 815ms on a formula simplification. DAG size of input: 153 DAG size of output 69 [2018-04-09 20:23:03,402 INFO L416 ceAbstractionStarter]: For program point __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____bswap_32ENTRY(lines 56 60) no Hoare annotation was computed. [2018-04-09 20:23:03,402 INFO L416 ceAbstractionStarter]: For program point L59(line 59) no Hoare annotation was computed. [2018-04-09 20:23:03,402 INFO L416 ceAbstractionStarter]: For program point L59'(line 59) no Hoare annotation was computed. [2018-04-09 20:23:03,402 INFO L416 ceAbstractionStarter]: For program point __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____bswap_32FINAL(lines 56 60) no Hoare annotation was computed. [2018-04-09 20:23:03,402 INFO L416 ceAbstractionStarter]: For program point __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____bswap_32EXIT(lines 56 60) no Hoare annotation was computed. [2018-04-09 20:23:03,402 INFO L416 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-04-09 20:23:03,403 INFO L416 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-04-09 20:23:03,403 INFO L412 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-04-09 20:23:03,403 INFO L416 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-04-09 20:23:03,403 INFO L416 ceAbstractionStarter]: For program point __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____bswap_64EXIT(lines 61 65) no Hoare annotation was computed. [2018-04-09 20:23:03,403 INFO L416 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-04-09 20:23:03,403 INFO L416 ceAbstractionStarter]: For program point __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____bswap_64ENTRY(lines 61 65) no Hoare annotation was computed. [2018-04-09 20:23:03,403 INFO L416 ceAbstractionStarter]: For program point __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i____bswap_64FINAL(lines 61 65) no Hoare annotation was computed. [2018-04-09 20:23:03,403 INFO L416 ceAbstractionStarter]: For program point L64'(line 64) no Hoare annotation was computed. [2018-04-09 20:23:03,403 INFO L419 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-04-09 20:23:03,403 INFO L419 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-04-09 20:23:03,403 INFO L416 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-04-09 20:23:03,403 INFO L416 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-04-09 20:23:03,404 INFO L412 ceAbstractionStarter]: At program point L560(line 560) the Hoare annotation is: (let ((.cse1 (select |#length| main_~nondetString1~0.base)) (.cse0 (store |old(#valid)| |main_#t~malloc12.base| 1)) (.cse2 (select |#length| main_~nondetString2~0.base))) (and (= main_~nondetString2~0.offset 0) (= 0 main_~nondetString1~0.offset) (= |main_#t~malloc12.offset| 0) (= |#valid| (store .cse0 |main_#t~malloc13.base| 1)) (not (= main_~nondetString2~0.base main_~nondetString1~0.base)) (= .cse1 main_~length1~0) (exists ((main_~length2~0 Int)) (and (= 0 (select (select |#memory_int| main_~nondetString2~0.base) (+ main_~nondetString2~0.offset main_~length2~0 (- 1)))) (<= 1 main_~length2~0) (<= (+ main_~nondetString2~0.offset main_~length2~0) (select |#length| main_~nondetString2~0.base)))) (= 1 (select |#valid| main_~nondetString1~0.base)) (= 0 (select (select |#memory_int| main_~nondetString2~0.base) (+ .cse2 (- 1)))) (= 0 (select (select |#memory_int| main_~nondetString1~0.base) (+ .cse1 (- 1)))) (= 0 |main_#t~malloc13.offset|) (= (select |#length| |main_#t~malloc12.base|) main_~length1~0) (= (select .cse0 |main_#t~malloc13.base|) 0) (exists ((main_~length1~0 Int)) (and (<= (+ main_~nondetString1~0.offset main_~length1~0) (select |#length| main_~nondetString1~0.base)) (<= 1 main_~length1~0) (= (select (select |#memory_int| main_~nondetString1~0.base) (+ main_~nondetString1~0.offset main_~length1~0 (- 1))) 0))) (= .cse2 main_~length2~0) (= (select |#length| |main_#t~malloc13.base|) main_~length2~0) (= 1 (select |#valid| main_~nondetString2~0.base)) (= 0 (select |old(#valid)| |main_#t~malloc12.base|)) (not (= |main_#t~malloc13.base| main_~nondetString1~0.base)))) [2018-04-09 20:23:03,404 INFO L416 ceAbstractionStarter]: For program point mainErr1RequiresViolation(line 559) no Hoare annotation was computed. [2018-04-09 20:23:03,404 INFO L416 ceAbstractionStarter]: For program point L561'(line 561) no Hoare annotation was computed. [2018-04-09 20:23:03,404 INFO L416 ceAbstractionStarter]: For program point L561(line 561) no Hoare annotation was computed. [2018-04-09 20:23:03,404 INFO L416 ceAbstractionStarter]: For program point L549(line 549) no Hoare annotation was computed. [2018-04-09 20:23:03,404 INFO L416 ceAbstractionStarter]: For program point mainErr0RequiresViolation(line 559) no Hoare annotation was computed. [2018-04-09 20:23:03,404 INFO L416 ceAbstractionStarter]: For program point L551''(lines 548 562) no Hoare annotation was computed. [2018-04-09 20:23:03,404 INFO L416 ceAbstractionStarter]: For program point mainErr2RequiresViolation(line 560) no Hoare annotation was computed. [2018-04-09 20:23:03,404 INFO L416 ceAbstractionStarter]: For program point L550''(line 550) no Hoare annotation was computed. [2018-04-09 20:23:03,404 INFO L416 ceAbstractionStarter]: For program point L554'(lines 554 556) no Hoare annotation was computed. [2018-04-09 20:23:03,404 INFO L416 ceAbstractionStarter]: For program point L558''(line 558) no Hoare annotation was computed. [2018-04-09 20:23:03,404 INFO L416 ceAbstractionStarter]: For program point L558'(line 558) no Hoare annotation was computed. [2018-04-09 20:23:03,404 INFO L416 ceAbstractionStarter]: For program point L557''(line 557) no Hoare annotation was computed. [2018-04-09 20:23:03,404 INFO L416 ceAbstractionStarter]: For program point L550'(line 550) no Hoare annotation was computed. [2018-04-09 20:23:03,405 INFO L416 ceAbstractionStarter]: For program point mainErr3RequiresViolation(line 560) no Hoare annotation was computed. [2018-04-09 20:23:03,405 INFO L416 ceAbstractionStarter]: For program point L552(line 552) no Hoare annotation was computed. [2018-04-09 20:23:03,405 INFO L416 ceAbstractionStarter]: For program point L551(lines 551 553) no Hoare annotation was computed. [2018-04-09 20:23:03,405 INFO L416 ceAbstractionStarter]: For program point L550(line 550) no Hoare annotation was computed. [2018-04-09 20:23:03,405 INFO L416 ceAbstractionStarter]: For program point L557(line 557) no Hoare annotation was computed. [2018-04-09 20:23:03,405 INFO L416 ceAbstractionStarter]: For program point mainFINAL(lines 548 562) no Hoare annotation was computed. [2018-04-09 20:23:03,405 INFO L416 ceAbstractionStarter]: For program point L555(line 555) no Hoare annotation was computed. [2018-04-09 20:23:03,405 INFO L416 ceAbstractionStarter]: For program point mainErr4EnsuresViolationMEMORY_LEAK(lines 548 562) no Hoare annotation was computed. [2018-04-09 20:23:03,405 INFO L416 ceAbstractionStarter]: For program point L559(line 559) no Hoare annotation was computed. [2018-04-09 20:23:03,405 INFO L416 ceAbstractionStarter]: For program point L558(line 558) no Hoare annotation was computed. [2018-04-09 20:23:03,405 INFO L416 ceAbstractionStarter]: For program point mainEXIT(lines 548 562) no Hoare annotation was computed. [2018-04-09 20:23:03,405 INFO L412 ceAbstractionStarter]: At program point mainENTRY(lines 548 562) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-04-09 20:23:03,405 INFO L416 ceAbstractionStarter]: For program point L561''(line 561) no Hoare annotation was computed. [2018-04-09 20:23:03,405 INFO L416 ceAbstractionStarter]: For program point L558'''(line 558) no Hoare annotation was computed. [2018-04-09 20:23:03,405 INFO L416 ceAbstractionStarter]: For program point L557'(line 557) no Hoare annotation was computed. [2018-04-09 20:23:03,406 INFO L416 ceAbstractionStarter]: For program point L559'(line 559) no Hoare annotation was computed. [2018-04-09 20:23:03,406 INFO L416 ceAbstractionStarter]: For program point L549'(line 549) no Hoare annotation was computed. [2018-04-09 20:23:03,406 INFO L416 ceAbstractionStarter]: For program point L546''''''(line 546) no Hoare annotation was computed. [2018-04-09 20:23:03,406 INFO L416 ceAbstractionStarter]: For program point __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr1RequiresViolation(line 543) no Hoare annotation was computed. [2018-04-09 20:23:03,406 INFO L416 ceAbstractionStarter]: For program point L540(lines 540 547) no Hoare annotation was computed. [2018-04-09 20:23:03,406 INFO L416 ceAbstractionStarter]: For program point L546(line 546) no Hoare annotation was computed. [2018-04-09 20:23:03,406 INFO L416 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2018-04-09 20:23:03,406 INFO L416 ceAbstractionStarter]: For program point L544(line 544) no Hoare annotation was computed. [2018-04-09 20:23:03,406 INFO L416 ceAbstractionStarter]: For program point L543(lines 543 545) no Hoare annotation was computed. [2018-04-09 20:23:03,406 INFO L416 ceAbstractionStarter]: For program point L546'''''(line 546) no Hoare annotation was computed. [2018-04-09 20:23:03,406 INFO L416 ceAbstractionStarter]: For program point L543''''''(line 543) no Hoare annotation was computed. [2018-04-09 20:23:03,406 INFO L416 ceAbstractionStarter]: For program point __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr2RequiresViolation(line 543) no Hoare annotation was computed. [2018-04-09 20:23:03,406 INFO L416 ceAbstractionStarter]: For program point __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr3RequiresViolation(line 543) no Hoare annotation was computed. [2018-04-09 20:23:03,406 INFO L416 ceAbstractionStarter]: For program point L546'(line 546) no Hoare annotation was computed. [2018-04-09 20:23:03,406 INFO L416 ceAbstractionStarter]: For program point L543'''(line 543) no Hoare annotation was computed. [2018-04-09 20:23:03,407 INFO L416 ceAbstractionStarter]: For program point L546''''(line 546) no Hoare annotation was computed. [2018-04-09 20:23:03,407 INFO L416 ceAbstractionStarter]: For program point L543'''''''''(line 543) no Hoare annotation was computed. [2018-04-09 20:23:03,407 INFO L416 ceAbstractionStarter]: For program point __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr4RequiresViolation(line 544) no Hoare annotation was computed. [2018-04-09 20:23:03,407 INFO L416 ceAbstractionStarter]: For program point L544'''''''(line 544) no Hoare annotation was computed. [2018-04-09 20:23:03,407 INFO L416 ceAbstractionStarter]: For program point L543'''''''''''(line 543) no Hoare annotation was computed. [2018-04-09 20:23:03,407 INFO L416 ceAbstractionStarter]: For program point L544''''''(line 544) no Hoare annotation was computed. [2018-04-09 20:23:03,407 INFO L416 ceAbstractionStarter]: For program point L543'(line 543) no Hoare annotation was computed. [2018-04-09 20:23:03,407 INFO L416 ceAbstractionStarter]: For program point __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr9RequiresViolation(line 546) no Hoare annotation was computed. [2018-04-09 20:23:03,407 INFO L416 ceAbstractionStarter]: For program point L543''(line 543) no Hoare annotation was computed. [2018-04-09 20:23:03,407 INFO L416 ceAbstractionStarter]: For program point L543'''''''''''''(lines 543 545) no Hoare annotation was computed. [2018-04-09 20:23:03,407 INFO L416 ceAbstractionStarter]: For program point __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr6RequiresViolation(line 546) no Hoare annotation was computed. [2018-04-09 20:23:03,407 INFO L416 ceAbstractionStarter]: For program point L544'''(lines 544 545) no Hoare annotation was computed. [2018-04-09 20:23:03,407 INFO L416 ceAbstractionStarter]: For program point L544''''(line 544) no Hoare annotation was computed. [2018-04-09 20:23:03,407 INFO L416 ceAbstractionStarter]: For program point L543''''(lines 543 545) no Hoare annotation was computed. [2018-04-09 20:23:03,408 INFO L416 ceAbstractionStarter]: For program point L543'''''(line 543) no Hoare annotation was computed. [2018-04-09 20:23:03,408 INFO L416 ceAbstractionStarter]: For program point L544'(line 544) no Hoare annotation was computed. [2018-04-09 20:23:03,408 INFO L419 ceAbstractionStarter]: At program point __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpENTRY(lines 540 547) the Hoare annotation is: true [2018-04-09 20:23:03,408 INFO L416 ceAbstractionStarter]: For program point __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr7RequiresViolation(line 546) no Hoare annotation was computed. [2018-04-09 20:23:03,408 INFO L412 ceAbstractionStarter]: At program point L543''''''''''''(lines 543 545) the Hoare annotation is: (let ((.cse2 (select |#length| |__U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmp_#in~s1.base|))) (or (not (= 0 (select (select |#memory_int| |__U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmp_#in~s2.base|) (+ (select |#length| |__U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmp_#in~s2.base|) (- 1))))) (not (exists ((main_~nondetString2~0.base Int) (main_~nondetString2~0.offset Int)) (and (not (= |__U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmp_#in~s1.base| main_~nondetString2~0.base)) (= 0 (select (select |#memory_int| main_~nondetString2~0.base) (+ main_~nondetString2~0.offset (select |#length| main_~nondetString2~0.base) (- 1))))))) (let ((.cse1 (select |#length| __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmp_~s2.base)) (.cse0 (select |#length| __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmp_~s1.base))) (and (and (<= 0 __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmp_~s2.offset) (<= 0 __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmp_~s1.offset) (<= (+ __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmp_~s1.offset 1) .cse0) (= (select |#valid| __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmp_~s2.base) 1) (= (select |#valid| __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmp_~s1.base) 1) (<= (+ __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmp_~s2.offset 1) .cse1)) (= 0 (select (select |#memory_int| __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmp_~s2.base) (+ .cse1 (- 1)))) (= 0 (select (select |#memory_int| __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmp_~s1.base) (+ .cse0 (- 1)))))) (not (= 0 (select (select |#memory_int| |__U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmp_#in~s1.base|) (+ .cse2 (- 1))))) (or (< .cse2 (+ |__U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmp_#in~s1.offset| 1)) (not (= 1 (select |#valid| |__U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmp_#in~s2.base|))) (not (exists ((v_main_~nondetString2~0.offset_BEFORE_CALL_3 Int) (main_~length2~0 Int)) (and (<= (+ v_main_~nondetString2~0.offset_BEFORE_CALL_3 main_~length2~0) (select |#length| |__U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmp_#in~s2.base|)) (<= 1 main_~length2~0) (= 0 (select (select |#memory_int| |__U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmp_#in~s2.base|) (+ v_main_~nondetString2~0.offset_BEFORE_CALL_3 main_~length2~0 (- 1)))) (<= |__U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmp_#in~s2.offset| v_main_~nondetString2~0.offset_BEFORE_CALL_3)))) (< |__U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmp_#in~s1.offset| 0) (not (= (select |#valid| |__U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmp_#in~s1.base|) 1)) (not (exists ((|v_main_#t~malloc12.base_BEFORE_CALL_5| Int) (|v_main_#t~malloc13.base_BEFORE_CALL_5| Int)) (and (not (= |v_main_#t~malloc13.base_BEFORE_CALL_5| |v_main_#t~malloc12.base_BEFORE_CALL_5|)) (= (select |#valid| |v_main_#t~malloc12.base_BEFORE_CALL_5|) 1) (= (select |#valid| |v_main_#t~malloc13.base_BEFORE_CALL_5|) 1)))) (< |__U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmp_#in~s2.offset| 0)))) [2018-04-09 20:23:03,408 INFO L416 ceAbstractionStarter]: For program point L543''''''''''(line 543) no Hoare annotation was computed. [2018-04-09 20:23:03,408 INFO L416 ceAbstractionStarter]: For program point __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpEXIT(lines 540 547) no Hoare annotation was computed. [2018-04-09 20:23:03,408 INFO L416 ceAbstractionStarter]: For program point L543'''''''(line 543) no Hoare annotation was computed. [2018-04-09 20:23:03,408 INFO L416 ceAbstractionStarter]: For program point __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr8RequiresViolation(line 546) no Hoare annotation was computed. [2018-04-09 20:23:03,408 INFO L416 ceAbstractionStarter]: For program point __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpFINAL(lines 540 547) no Hoare annotation was computed. [2018-04-09 20:23:03,408 INFO L416 ceAbstractionStarter]: For program point __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr0RequiresViolation(line 543) no Hoare annotation was computed. [2018-04-09 20:23:03,408 INFO L416 ceAbstractionStarter]: For program point L546''(line 546) no Hoare annotation was computed. [2018-04-09 20:23:03,408 INFO L416 ceAbstractionStarter]: For program point L544'''''(line 544) no Hoare annotation was computed. [2018-04-09 20:23:03,409 INFO L416 ceAbstractionStarter]: For program point L544''(line 544) no Hoare annotation was computed. [2018-04-09 20:23:03,409 INFO L416 ceAbstractionStarter]: For program point L546'''(line 546) no Hoare annotation was computed. [2018-04-09 20:23:03,409 INFO L416 ceAbstractionStarter]: For program point __U_MULTI_fopenbsd_cstrcmp_alloca_true_valid_memsafety_true_termination_i__cstrcmpErr5RequiresViolation(line 544) no Hoare annotation was computed. [2018-04-09 20:23:03,415 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~nondetString2~0.base,QUANTIFIED] [2018-04-09 20:23:03,416 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~nondetString2~0.base,QUANTIFIED] [2018-04-09 20:23:03,416 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~nondetString2~0.offset,QUANTIFIED] [2018-04-09 20:23:03,417 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~nondetString2~0.base,QUANTIFIED] [2018-04-09 20:23:03,417 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~nondetString2~0.offset_BEFORE_CALL_3,QUANTIFIED] [2018-04-09 20:23:03,418 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~length2~0,QUANTIFIED] [2018-04-09 20:23:03,418 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~length2~0,QUANTIFIED] [2018-04-09 20:23:03,418 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~nondetString2~0.offset_BEFORE_CALL_3,QUANTIFIED] [2018-04-09 20:23:03,418 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~length2~0,QUANTIFIED] [2018-04-09 20:23:03,419 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~nondetString2~0.offset_BEFORE_CALL_3,QUANTIFIED] [2018-04-09 20:23:03,419 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~malloc13.base_BEFORE_CALL_5,QUANTIFIED] [2018-04-09 20:23:03,419 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~malloc12.base_BEFORE_CALL_5,QUANTIFIED] [2018-04-09 20:23:03,419 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~malloc12.base_BEFORE_CALL_5,QUANTIFIED] [2018-04-09 20:23:03,420 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~malloc13.base_BEFORE_CALL_5,QUANTIFIED] [2018-04-09 20:23:03,422 WARN L1215 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-04-09 20:23:03,422 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-04-09 20:23:03,422 WARN L1215 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-04-09 20:23:03,422 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-04-09 20:23:03,423 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-04-09 20:23:03,423 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-04-09 20:23:03,423 WARN L1215 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-04-09 20:23:03,423 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-04-09 20:23:03,424 WARN L1215 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-04-09 20:23:03,424 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-04-09 20:23:03,424 WARN L1215 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-04-09 20:23:03,424 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-04-09 20:23:03,424 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-04-09 20:23:03,425 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-04-09 20:23:03,425 WARN L1215 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-04-09 20:23:03,431 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~nondetString2~0.base,QUANTIFIED] [2018-04-09 20:23:03,431 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~nondetString2~0.base,QUANTIFIED] [2018-04-09 20:23:03,431 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~nondetString2~0.offset,QUANTIFIED] [2018-04-09 20:23:03,432 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~nondetString2~0.base,QUANTIFIED] [2018-04-09 20:23:03,432 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~nondetString2~0.offset_BEFORE_CALL_3,QUANTIFIED] [2018-04-09 20:23:03,432 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~length2~0,QUANTIFIED] [2018-04-09 20:23:03,433 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~length2~0,QUANTIFIED] [2018-04-09 20:23:03,433 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~nondetString2~0.offset_BEFORE_CALL_3,QUANTIFIED] [2018-04-09 20:23:03,433 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~length2~0,QUANTIFIED] [2018-04-09 20:23:03,433 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~nondetString2~0.offset_BEFORE_CALL_3,QUANTIFIED] [2018-04-09 20:23:03,434 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~malloc13.base_BEFORE_CALL_5,QUANTIFIED] [2018-04-09 20:23:03,434 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~malloc12.base_BEFORE_CALL_5,QUANTIFIED] [2018-04-09 20:23:03,434 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~malloc12.base_BEFORE_CALL_5,QUANTIFIED] [2018-04-09 20:23:03,434 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~malloc13.base_BEFORE_CALL_5,QUANTIFIED] [2018-04-09 20:23:03,434 WARN L1215 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-04-09 20:23:03,435 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-04-09 20:23:03,435 WARN L1215 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-04-09 20:23:03,435 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-04-09 20:23:03,435 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-04-09 20:23:03,436 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-04-09 20:23:03,436 WARN L1215 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-04-09 20:23:03,436 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-04-09 20:23:03,436 WARN L1215 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-04-09 20:23:03,436 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-04-09 20:23:03,437 WARN L1215 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-04-09 20:23:03,437 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-04-09 20:23:03,437 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-04-09 20:23:03,437 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-04-09 20:23:03,437 WARN L1215 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-04-09 20:23:03,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.04 08:23:03 BoogieIcfgContainer [2018-04-09 20:23:03,441 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-09 20:23:03,442 INFO L168 Benchmark]: Toolchain (without parser) took 42851.14 ms. Allocated memory was 303.6 MB in the beginning and 620.8 MB in the end (delta: 317.2 MB). Free memory was 240.1 MB in the beginning and 333.9 MB in the end (delta: -93.7 MB). Peak memory consumption was 223.5 MB. Max. memory is 5.3 GB. [2018-04-09 20:23:03,443 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 303.6 MB. Free memory is still 265.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-09 20:23:03,443 INFO L168 Benchmark]: CACSL2BoogieTranslator took 337.83 ms. Allocated memory is still 303.6 MB. Free memory was 240.1 MB in the beginning and 216.1 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 5.3 GB. [2018-04-09 20:23:03,444 INFO L168 Benchmark]: Boogie Preprocessor took 56.86 ms. Allocated memory is still 303.6 MB. Free memory was 216.1 MB in the beginning and 214.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 5.3 GB. [2018-04-09 20:23:03,444 INFO L168 Benchmark]: RCFGBuilder took 515.25 ms. Allocated memory was 303.6 MB in the beginning and 462.9 MB in the end (delta: 159.4 MB). Free memory was 214.0 MB in the beginning and 397.8 MB in the end (delta: -183.8 MB). Peak memory consumption was 22.3 MB. Max. memory is 5.3 GB. [2018-04-09 20:23:03,445 INFO L168 Benchmark]: TraceAbstraction took 41936.16 ms. Allocated memory was 462.9 MB in the beginning and 620.8 MB in the end (delta: 157.8 MB). Free memory was 397.8 MB in the beginning and 333.9 MB in the end (delta: 63.9 MB). Peak memory consumption was 221.7 MB. Max. memory is 5.3 GB. [2018-04-09 20:23:03,447 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 303.6 MB. Free memory is still 265.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 337.83 ms. Allocated memory is still 303.6 MB. Free memory was 240.1 MB in the beginning and 216.1 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 56.86 ms. Allocated memory is still 303.6 MB. Free memory was 216.1 MB in the beginning and 214.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 5.3 GB. * RCFGBuilder took 515.25 ms. Allocated memory was 303.6 MB in the beginning and 462.9 MB in the end (delta: 159.4 MB). Free memory was 214.0 MB in the beginning and 397.8 MB in the end (delta: -183.8 MB). Peak memory consumption was 22.3 MB. Max. memory is 5.3 GB. * TraceAbstraction took 41936.16 ms. Allocated memory was 462.9 MB in the beginning and 620.8 MB in the end (delta: 157.8 MB). Free memory was 397.8 MB in the beginning and 333.9 MB in the end (delta: 63.9 MB). Peak memory consumption was 221.7 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~nondetString2~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~nondetString2~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~nondetString2~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~nondetString2~0.offset_BEFORE_CALL_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~length2~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~length2~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~nondetString2~0.offset_BEFORE_CALL_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~length2~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~nondetString2~0.offset_BEFORE_CALL_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~malloc13.base_BEFORE_CALL_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~malloc12.base_BEFORE_CALL_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~malloc12.base_BEFORE_CALL_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~malloc13.base_BEFORE_CALL_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~nondetString2~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~nondetString2~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~nondetString2~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~nondetString2~0.offset_BEFORE_CALL_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~length2~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~length2~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~nondetString2~0.offset_BEFORE_CALL_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~length2~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~nondetString2~0.offset_BEFORE_CALL_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~malloc13.base_BEFORE_CALL_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~malloc12.base_BEFORE_CALL_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~malloc12.base_BEFORE_CALL_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~malloc13.base_BEFORE_CALL_5,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * 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 - InvariantResult [Line: 543]: Loop Invariant [2018-04-09 20:23:03,455 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~nondetString2~0.base,QUANTIFIED] [2018-04-09 20:23:03,455 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~nondetString2~0.base,QUANTIFIED] [2018-04-09 20:23:03,455 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~nondetString2~0.offset,QUANTIFIED] [2018-04-09 20:23:03,455 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~nondetString2~0.base,QUANTIFIED] [2018-04-09 20:23:03,456 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~nondetString2~0.offset_BEFORE_CALL_3,QUANTIFIED] [2018-04-09 20:23:03,456 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~length2~0,QUANTIFIED] [2018-04-09 20:23:03,456 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~length2~0,QUANTIFIED] [2018-04-09 20:23:03,456 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~nondetString2~0.offset_BEFORE_CALL_3,QUANTIFIED] [2018-04-09 20:23:03,457 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~length2~0,QUANTIFIED] [2018-04-09 20:23:03,457 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~nondetString2~0.offset_BEFORE_CALL_3,QUANTIFIED] [2018-04-09 20:23:03,457 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~malloc13.base_BEFORE_CALL_5,QUANTIFIED] [2018-04-09 20:23:03,457 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~malloc12.base_BEFORE_CALL_5,QUANTIFIED] [2018-04-09 20:23:03,457 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~malloc12.base_BEFORE_CALL_5,QUANTIFIED] [2018-04-09 20:23:03,458 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~malloc13.base_BEFORE_CALL_5,QUANTIFIED] [2018-04-09 20:23:03,458 WARN L1215 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-04-09 20:23:03,458 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-04-09 20:23:03,458 WARN L1215 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-04-09 20:23:03,458 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-04-09 20:23:03,459 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-04-09 20:23:03,459 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-04-09 20:23:03,459 WARN L1215 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-04-09 20:23:03,459 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-04-09 20:23:03,459 WARN L1215 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-04-09 20:23:03,460 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-04-09 20:23:03,460 WARN L1215 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-04-09 20:23:03,460 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-04-09 20:23:03,460 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-04-09 20:23:03,460 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-04-09 20:23:03,460 WARN L1215 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-04-09 20:23:03,463 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~nondetString2~0.base,QUANTIFIED] [2018-04-09 20:23:03,463 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~nondetString2~0.base,QUANTIFIED] [2018-04-09 20:23:03,463 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~nondetString2~0.offset,QUANTIFIED] [2018-04-09 20:23:03,463 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~nondetString2~0.base,QUANTIFIED] [2018-04-09 20:23:03,464 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~nondetString2~0.offset_BEFORE_CALL_3,QUANTIFIED] [2018-04-09 20:23:03,464 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~length2~0,QUANTIFIED] [2018-04-09 20:23:03,464 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~length2~0,QUANTIFIED] [2018-04-09 20:23:03,464 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~nondetString2~0.offset_BEFORE_CALL_3,QUANTIFIED] [2018-04-09 20:23:03,465 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~length2~0,QUANTIFIED] [2018-04-09 20:23:03,465 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~nondetString2~0.offset_BEFORE_CALL_3,QUANTIFIED] [2018-04-09 20:23:03,465 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~malloc13.base_BEFORE_CALL_5,QUANTIFIED] [2018-04-09 20:23:03,465 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~malloc12.base_BEFORE_CALL_5,QUANTIFIED] [2018-04-09 20:23:03,465 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~malloc12.base_BEFORE_CALL_5,QUANTIFIED] [2018-04-09 20:23:03,466 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~malloc13.base_BEFORE_CALL_5,QUANTIFIED] [2018-04-09 20:23:03,466 WARN L1215 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-04-09 20:23:03,466 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-04-09 20:23:03,466 WARN L1215 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-04-09 20:23:03,466 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-04-09 20:23:03,466 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-04-09 20:23:03,467 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-04-09 20:23:03,467 WARN L1215 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-04-09 20:23:03,467 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-04-09 20:23:03,467 WARN L1215 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-04-09 20:23:03,467 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-04-09 20:23:03,467 WARN L1215 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-04-09 20:23:03,468 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-04-09 20:23:03,468 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-04-09 20:23:03,468 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-04-09 20:23:03,468 WARN L1215 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((!(0 == unknown-#memory_int-unknown[s2][unknown-#length-unknown[s2] + -1]) || !(\exists main_~nondetString2~0.base : int, main_~nondetString2~0.offset : int :: !(s1 == main_~nondetString2~0.base) && 0 == unknown-#memory_int-unknown[main_~nondetString2~0.base][main_~nondetString2~0.offset + unknown-#length-unknown[main_~nondetString2~0.base] + -1])) || (((((((0 <= s2 && 0 <= s1) && s1 + 1 <= unknown-#length-unknown[s1]) && \valid[s2] == 1) && \valid[s1] == 1) && s2 + 1 <= unknown-#length-unknown[s2]) && 0 == unknown-#memory_int-unknown[s2][unknown-#length-unknown[s2] + -1]) && 0 == unknown-#memory_int-unknown[s1][unknown-#length-unknown[s1] + -1])) || !(0 == unknown-#memory_int-unknown[s1][unknown-#length-unknown[s1] + -1])) || (((((unknown-#length-unknown[s1] < s1 + 1 || !(1 == \valid[s2])) || !(\exists v_main_~nondetString2~0.offset_BEFORE_CALL_3 : int, main_~length2~0 : int :: ((v_main_~nondetString2~0.offset_BEFORE_CALL_3 + main_~length2~0 <= unknown-#length-unknown[s2] && 1 <= main_~length2~0) && 0 == unknown-#memory_int-unknown[s2][v_main_~nondetString2~0.offset_BEFORE_CALL_3 + main_~length2~0 + -1]) && s2 <= v_main_~nondetString2~0.offset_BEFORE_CALL_3)) || s1 < 0) || !(\valid[s1] == 1)) || !(\exists v_main_#t~malloc12.base_BEFORE_CALL_5 : int, v_main_#t~malloc13.base_BEFORE_CALL_5 : int :: (!(v_main_#t~malloc13.base_BEFORE_CALL_5 == v_main_#t~malloc12.base_BEFORE_CALL_5) && \valid[v_main_#t~malloc12.base_BEFORE_CALL_5] == 1) && \valid[v_main_#t~malloc13.base_BEFORE_CALL_5] == 1)) || s2 < 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 92 locations, 15 error locations. SAFE Result, 41.8s OverallTime, 21 OverallIterations, 3 TraceHistogramMax, 21.8s AutomataDifference, 0.0s DeadEndRemovalTime, 11.9s HoareAnnotationTime, HoareTripleCheckerStatistics: 1308 SDtfs, 2193 SDslu, 5676 SDs, 0 SdLazy, 4070 SolverSat, 206 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 6.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1680 GetRequests, 1283 SyntacticMatches, 20 SemanticMatches, 377 ConstructedPredicates, 20 IntricatePredicates, 0 DeprecatedPredicates, 1922 ImplicationChecksByTransitivity, 19.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=148occurred in iteration=17, 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: 0.1s AutomataMinimizationTime, 21 MinimizatonAttempts, 249 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 9 NumberOfFragments, 318 HoareAnnotationTreeSize, 7 FomulaSimplifications, 452 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3967 FormulaSimplificationTreeSizeReductionInter, 11.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 773 NumberOfCodeBlocks, 773 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1504 ConstructedInterpolants, 256 QuantifiedInterpolants, 668823 SizeOfPredicates, 191 NumberOfNonLiveVariables, 2578 ConjunctsInSsa, 367 ConjunctsInUnsatCore, 42 InterpolantComputations, 34 PerfectInterpolantSequences, 36/114 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-09_20-23-03-474.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-09_20-23-03-474.csv Received shutdown request...