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/cstrchr_unsafe_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-835382a-m [2018-04-05 15:15:57,238 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-05 15:15:57,241 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-05 15:15:57,281 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-05 15:15:57,281 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-05 15:15:57,283 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-05 15:15:57,290 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-05 15:15:57,293 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-05 15:15:57,296 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-05 15:15:57,296 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-05 15:15:57,307 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-05 15:15:57,307 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-05 15:15:57,308 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-05 15:15:57,320 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-05 15:15:57,327 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-05 15:15:57,329 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-05 15:15:57,333 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-05 15:15:57,337 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-05 15:15:57,339 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-05 15:15:57,340 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-05 15:15:57,361 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-05 15:15:57,361 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-05 15:15:57,362 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-05 15:15:57,363 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-05 15:15:57,364 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-05 15:15:57,373 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-05 15:15:57,373 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-05 15:15:57,374 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-05 15:15:57,387 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-04-05 15:15:57,388 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf [2018-04-05 15:15:57,452 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-05 15:15:57,452 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-05 15:15:57,453 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-04-05 15:15:57,453 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-04-05 15:15:57,454 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-04-05 15:15:57,454 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-04-05 15:15:57,454 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-04-05 15:15:57,454 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-04-05 15:15:57,455 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-04-05 15:15:57,462 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-04-05 15:15:57,463 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-04-05 15:15:57,463 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-05 15:15:57,463 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-05 15:15:57,463 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-05 15:15:57,463 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-05 15:15:57,464 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-05 15:15:57,464 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-05 15:15:57,468 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-05 15:15:57,468 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-04-05 15:15:57,469 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-05 15:15:57,469 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-05 15:15:57,469 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-05 15:15:57,470 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-04-05 15:15:57,475 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-04-05 15:15:57,476 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-05 15:15:57,476 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-05 15:15:57,476 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-05 15:15:57,476 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-05 15:15:57,477 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-05 15:15:57,477 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-04-05 15:15:57,477 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-04-05 15:15:57,477 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:15:57,478 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-04-05 15:15:57,479 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-04-05 15:15:57,482 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-04-05 15:15:57,482 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-04-05 15:15:57,482 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-04-05 15:15:57,549 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-05 15:15:57,579 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-05 15:15:57,585 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-05 15:15:57,587 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-05 15:15:57,588 INFO L276 PluginConnector]: CDTParser initialized [2018-04-05 15:15:57,589 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:58,294 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG2f7b46343 [2018-04-05 15:15:59,003 INFO L287 CDTParser]: IsIndexed: true [2018-04-05 15:15:59,004 INFO L288 CDTParser]: Found 1 translation units. [2018-04-05 15:15:59,004 INFO L168 CDTParser]: Scanning cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,046 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-05 15:15:59,046 INFO L215 ultiparseSymbolTable]: [2018-04-05 15:15:59,047 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-05 15:15:59,047 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____bswap_64 ('__bswap_64') in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,047 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,047 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____bswap_32 ('__bswap_32') in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,047 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__build_nondet_String ('build_nondet_String') in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,047 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__ ('') in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,047 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-05 15:15:59,048 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__timer_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,048 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____int8_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,048 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____fsblkcnt64_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,048 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____fsword_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,048 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__pthread_once_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,048 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__ssize_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,048 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__gid_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,052 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__u_short in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,052 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__wchar_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,052 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__int8_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,052 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__u_int64_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,053 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____intptr_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,053 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__loff_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,053 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__ino_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,053 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____int64_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,053 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__size_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,053 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____u_int in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,053 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__ldiv_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,053 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__off_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,054 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____useconds_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,054 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__pthread_mutex_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,054 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____clockid_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,054 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____fsfilcnt64_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,054 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__pthread_attr_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,054 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____socklen_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,054 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__register_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,054 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__u_int in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,055 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____rlim_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,055 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__clockid_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,055 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____blkcnt_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,055 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____int32_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,055 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__pthread_mutexattr_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,055 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__dev_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,055 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____pid_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,055 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____timer_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,056 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____suseconds_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,056 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__fsblkcnt_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,056 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____ino64_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,056 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__id_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,056 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____ssize_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,056 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____fd_mask in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,056 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__fsfilcnt_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,056 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____id_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,057 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__nlink_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,058 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____gid_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,059 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____off_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,059 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__uint in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,059 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____syscall_ulong_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,059 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__u_int8_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,059 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__pthread_rwlockattr_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,059 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____uid_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,059 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__pthread_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,059 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____blkcnt64_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,059 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____uint64_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,060 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__fd_mask in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,060 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__key_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,060 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__int32_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,060 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____sig_atomic_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,060 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____nlink_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,060 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__sigset_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,060 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____pthread_list_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,060 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__pthread_barrierattr_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,061 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__blkcnt_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,061 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__u_int32_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,061 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____u_long in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,061 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__u_char in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,061 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__ulong in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,061 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__u_quad_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,061 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____int16_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,061 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____off64_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,061 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__blksize_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,062 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__pthread_rwlock_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,065 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__pthread_key_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,065 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____quad_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,065 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____uint32_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,065 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____u_char in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,065 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__pthread_barrier_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,065 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____u_quad_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,065 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____syscall_slong_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,066 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__time_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,066 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__uid_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,066 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____fsblkcnt_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,066 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__int16_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,066 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__lldiv_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,066 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__quad_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,066 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__caddr_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,066 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__u_int16_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,066 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__fsid_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,067 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__pthread_spinlock_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,067 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____loff_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,067 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__div_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,067 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____uint8_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,067 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__pthread_cond_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,067 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____clock_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,067 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____key_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,067 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__ushort in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,067 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____time_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,067 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__pthread_condattr_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,068 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____WAIT_STATUS in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,070 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__int64_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,070 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____sigset_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,071 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____rlim64_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,071 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____fsfilcnt_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,071 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____mode_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,071 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____ino_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,071 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____daddr_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,071 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____fsid_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,071 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____uint16_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,071 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____qaddr_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,071 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____blksize_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,072 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__pid_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,072 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__daddr_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,072 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__fd_set in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,072 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__u_long in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,072 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____caddr_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,072 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__suseconds_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,072 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__clock_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,074 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____u_short in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,075 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____dev_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,075 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__mode_t in cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:15:59,125 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG2f7b46343 [2018-04-05 15:15:59,153 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-05 15:15:59,165 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-05 15:15:59,175 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-05 15:15:59,175 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-05 15:15:59,203 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-05 15:15:59,205 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 03:15:59" (1/1) ... [2018-04-05 15:15:59,213 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20c263da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:15:59, skipping insertion in model container [2018-04-05 15:15:59,213 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 03:15:59" (1/1) ... [2018-04-05 15:15:59,249 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-05 15:15:59,404 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-05 15:15:59,909 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-05 15:16:00,026 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-05 15:16:00,044 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 113 non ball SCCs. Number of states in SCCs 113. [2018-04-05 15:16:00,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:16:00 WrapperNode [2018-04-05 15:16:00,188 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-05 15:16:00,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-05 15:16:00,192 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-05 15:16:00,192 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-05 15:16:00,207 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:16:00" (1/1) ... [2018-04-05 15:16:00,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:16:00" (1/1) ... [2018-04-05 15:16:00,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:16:00" (1/1) ... [2018-04-05 15:16:00,257 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:16:00" (1/1) ... [2018-04-05 15:16:00,301 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:16:00" (1/1) ... [2018-04-05 15:16:00,311 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:16:00" (1/1) ... [2018-04-05 15:16:00,316 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:16:00" (1/1) ... [2018-04-05 15:16:00,331 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-05 15:16:00,332 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-05 15:16:00,332 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-05 15:16:00,332 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-05 15:16:00,333 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:16:00" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-05 15:16:00,712 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-05 15:16:00,712 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-05 15:16:00,712 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____bswap_32 [2018-04-05 15:16:00,713 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____bswap_64 [2018-04-05 15:16:00,713 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__build_nondet_String [2018-04-05 15:16:00,713 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrchr [2018-04-05 15:16:00,713 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-05 15:16:00,713 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____bswap_32 [2018-04-05 15:16:00,713 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fcstrchr_unsafe_false_valid_deref_i____bswap_64 [2018-04-05 15:16:00,713 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-05 15:16:00,714 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-05 15:16:00,714 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-05 15:16:00,714 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-05 15:16:00,714 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-05 15:16:00,714 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-05 15:16:00,714 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-05 15:16:00,714 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-05 15:16:00,714 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-05 15:16:00,715 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-05 15:16:00,715 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-05 15:16:00,715 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-05 15:16:00,715 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-05 15:16:00,715 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-05 15:16:00,715 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-05 15:16:00,715 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-05 15:16:00,716 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-05 15:16:00,729 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-05 15:16:00,729 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-05 15:16:00,729 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-05 15:16:00,730 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-05 15:16:00,730 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-05 15:16:00,730 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-05 15:16:00,730 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-05 15:16:00,730 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-05 15:16:00,730 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-05 15:16:00,730 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-05 15:16:00,731 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-05 15:16:00,731 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-05 15:16:00,732 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-05 15:16:00,733 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-05 15:16:00,733 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-05 15:16:00,733 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-05 15:16:00,733 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-05 15:16:00,733 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-05 15:16:00,734 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-05 15:16:00,737 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-05 15:16:00,737 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-05 15:16:00,737 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-05 15:16:00,738 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-05 15:16:00,738 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-05 15:16:00,738 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-05 15:16:00,738 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-05 15:16:00,738 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-05 15:16:00,738 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-05 15:16:00,738 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-05 15:16:00,739 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-05 15:16:00,739 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-05 15:16:00,739 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-05 15:16:00,739 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-05 15:16:00,739 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-05 15:16:00,739 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-05 15:16:00,739 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-05 15:16:00,739 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-05 15:16:00,740 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-05 15:16:00,740 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-05 15:16:00,740 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-05 15:16:00,740 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-05 15:16:00,740 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-05 15:16:00,740 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-05 15:16:00,740 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-05 15:16:00,740 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-05 15:16:00,740 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-05 15:16:00,741 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-05 15:16:00,746 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-05 15:16:00,746 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-05 15:16:00,747 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-05 15:16:00,747 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-05 15:16:00,747 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-05 15:16:00,747 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-05 15:16:00,747 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-05 15:16:00,747 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-05 15:16:00,747 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-05 15:16:00,747 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-05 15:16:00,748 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-05 15:16:00,748 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-05 15:16:00,748 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-05 15:16:00,748 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-05 15:16:00,748 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-05 15:16:00,748 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-05 15:16:00,748 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-05 15:16:00,748 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-05 15:16:00,749 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-05 15:16:00,749 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-05 15:16:00,749 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-05 15:16:00,749 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-05 15:16:00,749 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-05 15:16:00,749 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-05 15:16:00,749 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-05 15:16:00,749 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-05 15:16:00,750 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-05 15:16:00,754 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-05 15:16:00,754 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-05 15:16:00,754 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-05 15:16:00,754 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-05 15:16:00,754 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-05 15:16:00,755 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-05 15:16:00,755 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-05 15:16:00,755 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-05 15:16:00,755 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-05 15:16:00,755 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-05 15:16:00,755 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__build_nondet_String [2018-04-05 15:16:00,755 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-05 15:16:00,755 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-05 15:16:00,756 INFO L128 BoogieDeclarations]: Found specification of procedure cstrchr [2018-04-05 15:16:00,756 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-05 15:16:00,756 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-05 15:16:00,756 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-05 15:16:00,756 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-05 15:16:00,756 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-05 15:16:00,756 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-05 15:16:01,858 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-05 15:16:01,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 03:16:01 BoogieIcfgContainer [2018-04-05 15:16:01,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-05 15:16:01,862 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-05 15:16:01,862 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-05 15:16:01,887 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-05 15:16:01,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.04 03:15:59" (1/3) ... [2018-04-05 15:16:01,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd1799b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 03:16:01, skipping insertion in model container [2018-04-05 15:16:01,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:16:00" (2/3) ... [2018-04-05 15:16:01,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd1799b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 03:16:01, skipping insertion in model container [2018-04-05 15:16:01,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 03:16:01" (3/3) ... [2018-04-05 15:16:01,899 INFO L107 eAbstractionObserver]: Analyzing ICFG cstrchr_unsafe_false-valid-deref.i [2018-04-05 15:16:01,920 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-05 15:16:01,950 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2018-04-05 15:16:02,085 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-05 15:16:02,086 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-05 15:16:02,086 INFO L370 AbstractCegarLoop]: Hoare is true [2018-04-05 15:16:02,086 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-05 15:16:02,087 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-05 15:16:02,087 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-05 15:16:02,087 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-05 15:16:02,087 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-05 15:16:02,087 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-05 15:16:02,088 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-05 15:16:02,128 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states. [2018-04-05 15:16:02,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-05 15:16:02,149 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:16:02,152 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:16:02,152 INFO L408 AbstractCegarLoop]: === Iteration 1 === [cstrchrErr4RequiresViolation, cstrchrErr2RequiresViolation, cstrchrErr5RequiresViolation, cstrchrErr3RequiresViolation, cstrchrErr1RequiresViolation, cstrchrErr0RequiresViolation, __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__build_nondet_StringErr1RequiresViolation, __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__build_nondet_StringErr0RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-05 15:16:02,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1957963639, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:16:02,216 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:16:02,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:16:02,285 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:16:02,398 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:16:02,409 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:16:02,421 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:16:02,422 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-05 15:16:02,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:16:02,478 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:16:02,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:16:02,624 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:16:02,624 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-05 15:16:02,627 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-05 15:16:02,659 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-05 15:16:02,660 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-05 15:16:02,667 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 4 states. [2018-04-05 15:16:03,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:16:03,098 INFO L93 Difference]: Finished difference Result 104 states and 108 transitions. [2018-04-05 15:16:03,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-05 15:16:03,100 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-04-05 15:16:03,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:16:03,124 INFO L225 Difference]: With dead ends: 104 [2018-04-05 15:16:03,125 INFO L226 Difference]: Without dead ends: 71 [2018-04-05 15:16:03,134 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-05 15:16:03,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-04-05 15:16:03,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2018-04-05 15:16:03,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-04-05 15:16:03,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 74 transitions. [2018-04-05 15:16:03,248 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 74 transitions. Word has length 14 [2018-04-05 15:16:03,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:16:03,249 INFO L459 AbstractCegarLoop]: Abstraction has 71 states and 74 transitions. [2018-04-05 15:16:03,249 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-05 15:16:03,249 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 74 transitions. [2018-04-05 15:16:03,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-05 15:16:03,250 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:16:03,250 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:16:03,250 INFO L408 AbstractCegarLoop]: === Iteration 2 === [cstrchrErr4RequiresViolation, cstrchrErr2RequiresViolation, cstrchrErr5RequiresViolation, cstrchrErr3RequiresViolation, cstrchrErr1RequiresViolation, cstrchrErr0RequiresViolation, __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__build_nondet_StringErr1RequiresViolation, __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__build_nondet_StringErr0RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-05 15:16:03,251 INFO L82 PathProgramCache]: Analyzing trace with hash -1957963638, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:16:03,284 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:16:03,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:16:03,358 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:16:03,412 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:16:03,412 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:16:03,449 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:16:03,449 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-04-05 15:16:03,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:16:03,582 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:16:03,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:16:03,855 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:16:03,855 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2018-04-05 15:16:03,857 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-05 15:16:03,857 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-05 15:16:03,858 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-04-05 15:16:03,858 INFO L87 Difference]: Start difference. First operand 71 states and 74 transitions. Second operand 7 states. [2018-04-05 15:16:04,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:16:04,238 INFO L93 Difference]: Finished difference Result 71 states and 74 transitions. [2018-04-05 15:16:04,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-05 15:16:04,253 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2018-04-05 15:16:04,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:16:04,257 INFO L225 Difference]: With dead ends: 71 [2018-04-05 15:16:04,257 INFO L226 Difference]: Without dead ends: 70 [2018-04-05 15:16:04,258 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-04-05 15:16:04,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-04-05 15:16:04,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2018-04-05 15:16:04,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2018-04-05 15:16:04,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 73 transitions. [2018-04-05 15:16:04,276 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 73 transitions. Word has length 14 [2018-04-05 15:16:04,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:16:04,277 INFO L459 AbstractCegarLoop]: Abstraction has 70 states and 73 transitions. [2018-04-05 15:16:04,277 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-05 15:16:04,277 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 73 transitions. [2018-04-05 15:16:04,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-04-05 15:16:04,284 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:16:04,285 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] [2018-04-05 15:16:04,285 INFO L408 AbstractCegarLoop]: === Iteration 3 === [cstrchrErr4RequiresViolation, cstrchrErr2RequiresViolation, cstrchrErr5RequiresViolation, cstrchrErr3RequiresViolation, cstrchrErr1RequiresViolation, cstrchrErr0RequiresViolation, __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__build_nondet_StringErr1RequiresViolation, __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__build_nondet_StringErr0RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-05 15:16:04,285 INFO L82 PathProgramCache]: Analyzing trace with hash 2124276767, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:16:04,313 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:16:04,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:16:04,406 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:16:04,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:16:04,854 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:16:05,083 WARN L148 SmtUtils]: Spent 103ms on a formula simplification that was a NOOP. DAG size: 10 [2018-04-05 15:16:05,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:16:05,269 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:16:05,269 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2018-04-05 15:16:05,270 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-05 15:16:05,270 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-05 15:16:05,270 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-04-05 15:16:05,271 INFO L87 Difference]: Start difference. First operand 70 states and 73 transitions. Second operand 8 states. [2018-04-05 15:16:06,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:16:06,225 INFO L93 Difference]: Finished difference Result 74 states and 77 transitions. [2018-04-05 15:16:06,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-05 15:16:06,226 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2018-04-05 15:16:06,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:16:06,228 INFO L225 Difference]: With dead ends: 74 [2018-04-05 15:16:06,261 INFO L226 Difference]: Without dead ends: 70 [2018-04-05 15:16:06,262 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2018-04-05 15:16:06,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-04-05 15:16:06,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 69. [2018-04-05 15:16:06,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-04-05 15:16:06,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 73 transitions. [2018-04-05 15:16:06,280 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 73 transitions. Word has length 25 [2018-04-05 15:16:06,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:16:06,296 INFO L459 AbstractCegarLoop]: Abstraction has 69 states and 73 transitions. [2018-04-05 15:16:06,296 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-05 15:16:06,296 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 73 transitions. [2018-04-05 15:16:06,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-04-05 15:16:06,297 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:16:06,298 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] [2018-04-05 15:16:06,298 INFO L408 AbstractCegarLoop]: === Iteration 4 === [cstrchrErr4RequiresViolation, cstrchrErr2RequiresViolation, cstrchrErr5RequiresViolation, cstrchrErr3RequiresViolation, cstrchrErr1RequiresViolation, cstrchrErr0RequiresViolation, __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__build_nondet_StringErr1RequiresViolation, __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__build_nondet_StringErr0RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-05 15:16:06,298 INFO L82 PathProgramCache]: Analyzing trace with hash 2124276768, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:16:06,337 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:16:06,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:16:06,411 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:16:06,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:16:06,950 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:16:07,292 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-04-05 15:16:07,293 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:16:07,330 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2018-04-05 15:16:07,331 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:16:07,352 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 15:16:07,353 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2018-04-05 15:16:07,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:16:07,443 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:16:07,443 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 10 [2018-04-05 15:16:07,444 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-04-05 15:16:07,444 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-04-05 15:16:07,444 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-04-05 15:16:07,444 INFO L87 Difference]: Start difference. First operand 69 states and 73 transitions. Second operand 11 states. [2018-04-05 15:16:08,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:16:08,442 INFO L93 Difference]: Finished difference Result 70 states and 73 transitions. [2018-04-05 15:16:08,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-05 15:16:08,442 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2018-04-05 15:16:08,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:16:08,444 INFO L225 Difference]: With dead ends: 70 [2018-04-05 15:16:08,444 INFO L226 Difference]: Without dead ends: 67 [2018-04-05 15:16:08,445 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2018-04-05 15:16:08,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-04-05 15:16:08,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2018-04-05 15:16:08,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-04-05 15:16:08,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 70 transitions. [2018-04-05 15:16:08,473 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 70 transitions. Word has length 25 [2018-04-05 15:16:08,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:16:08,473 INFO L459 AbstractCegarLoop]: Abstraction has 67 states and 70 transitions. [2018-04-05 15:16:08,473 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-04-05 15:16:08,473 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 70 transitions. [2018-04-05 15:16:08,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-04-05 15:16:08,475 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:16:08,475 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] [2018-04-05 15:16:08,475 INFO L408 AbstractCegarLoop]: === Iteration 5 === [cstrchrErr4RequiresViolation, cstrchrErr2RequiresViolation, cstrchrErr5RequiresViolation, cstrchrErr3RequiresViolation, cstrchrErr1RequiresViolation, cstrchrErr0RequiresViolation, __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__build_nondet_StringErr1RequiresViolation, __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__build_nondet_StringErr0RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-05 15:16:08,475 INFO L82 PathProgramCache]: Analyzing trace with hash -1552861989, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:16:08,505 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:16:08,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:16:08,556 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:16:08,660 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:16:08,661 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:16:08,737 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:16:08,785 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:16:08,785 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-05 15:16:08,786 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-05 15:16:08,786 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-05 15:16:08,786 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-05 15:16:08,787 INFO L87 Difference]: Start difference. First operand 67 states and 70 transitions. Second operand 3 states. [2018-04-05 15:16:08,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:16:08,831 INFO L93 Difference]: Finished difference Result 109 states and 115 transitions. [2018-04-05 15:16:08,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-05 15:16:08,838 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2018-04-05 15:16:08,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:16:08,839 INFO L225 Difference]: With dead ends: 109 [2018-04-05 15:16:08,839 INFO L226 Difference]: Without dead ends: 68 [2018-04-05 15:16:08,840 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-05 15:16:08,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-04-05 15:16:08,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2018-04-05 15:16:08,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-04-05 15:16:08,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 71 transitions. [2018-04-05 15:16:08,856 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 71 transitions. Word has length 36 [2018-04-05 15:16:08,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:16:08,856 INFO L459 AbstractCegarLoop]: Abstraction has 68 states and 71 transitions. [2018-04-05 15:16:08,856 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-05 15:16:08,863 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 71 transitions. [2018-04-05 15:16:08,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-04-05 15:16:08,864 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:16:08,864 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] [2018-04-05 15:16:08,864 INFO L408 AbstractCegarLoop]: === Iteration 6 === [cstrchrErr4RequiresViolation, cstrchrErr2RequiresViolation, cstrchrErr5RequiresViolation, cstrchrErr3RequiresViolation, cstrchrErr1RequiresViolation, cstrchrErr0RequiresViolation, __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__build_nondet_StringErr1RequiresViolation, __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__build_nondet_StringErr0RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-05 15:16:08,864 INFO L82 PathProgramCache]: Analyzing trace with hash 1615463422, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:16:08,891 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:16:08,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:16:08,938 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:16:09,459 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-05 15:16:09,459 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:16:09,596 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-05 15:16:09,632 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:16:09,632 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2018-04-05 15:16:09,633 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-05 15:16:09,633 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-05 15:16:09,634 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-04-05 15:16:09,634 INFO L87 Difference]: Start difference. First operand 68 states and 71 transitions. Second operand 9 states. [2018-04-05 15:16:10,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:16:10,619 INFO L93 Difference]: Finished difference Result 68 states and 71 transitions. [2018-04-05 15:16:10,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-05 15:16:10,620 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 38 [2018-04-05 15:16:10,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:16:10,621 INFO L225 Difference]: With dead ends: 68 [2018-04-05 15:16:10,622 INFO L226 Difference]: Without dead ends: 67 [2018-04-05 15:16:10,622 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-04-05 15:16:10,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-04-05 15:16:10,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2018-04-05 15:16:10,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-04-05 15:16:10,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 70 transitions. [2018-04-05 15:16:10,648 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 70 transitions. Word has length 38 [2018-04-05 15:16:10,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:16:10,649 INFO L459 AbstractCegarLoop]: Abstraction has 67 states and 70 transitions. [2018-04-05 15:16:10,649 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-05 15:16:10,649 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 70 transitions. [2018-04-05 15:16:10,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-04-05 15:16:10,650 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:16:10,650 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] [2018-04-05 15:16:10,651 INFO L408 AbstractCegarLoop]: === Iteration 7 === [cstrchrErr4RequiresViolation, cstrchrErr2RequiresViolation, cstrchrErr5RequiresViolation, cstrchrErr3RequiresViolation, cstrchrErr1RequiresViolation, cstrchrErr0RequiresViolation, __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__build_nondet_StringErr1RequiresViolation, __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__build_nondet_StringErr0RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-05 15:16:10,651 INFO L82 PathProgramCache]: Analyzing trace with hash 1615463423, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:16:10,702 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:16:10,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:16:10,780 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:16:10,858 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-04-05 15:16:10,874 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-04-05 15:16:10,875 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 15:16:10,897 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:16:10,955 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 15:16:10,956 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:21 [2018-04-05 15:16:11,474 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 18 treesize of output 14 [2018-04-05 15:16:11,517 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 14 treesize of output 11 [2018-04-05 15:16:11,518 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-05 15:16:11,539 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 15:16:11,603 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 15:16:11,604 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:34, output treesize:33 [2018-04-05 15:16:11,847 WARN L151 SmtUtils]: Spent 177ms on a formula simplification. DAG size of input: 17 DAG size of output 17 [2018-04-05 15:16:12,136 WARN L151 SmtUtils]: Spent 183ms on a formula simplification. DAG size of input: 18 DAG size of output 17 [2018-04-05 15:16:12,508 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:16:12,509 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:16:14,835 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-04-05 15:16:14,836 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:16:14,918 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-04-05 15:16:15,027 WARN L151 SmtUtils]: Spent 108ms on a formula simplification. DAG size of input: 14 DAG size of output 12 [2018-04-05 15:16:15,043 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-04-05 15:16:15,043 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 15:16:15,059 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:16:15,121 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:16:15,122 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:35, output treesize:7 [2018-04-05 15:16:15,199 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:16:15,259 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:16:15,259 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2018-04-05 15:16:15,260 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-04-05 15:16:15,260 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-04-05 15:16:15,261 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2018-04-05 15:16:15,261 INFO L87 Difference]: Start difference. First operand 67 states and 70 transitions. Second operand 25 states. [2018-04-05 15:16:16,637 WARN L151 SmtUtils]: Spent 154ms on a formula simplification. DAG size of input: 42 DAG size of output 40 [2018-04-05 15:16:17,054 WARN L151 SmtUtils]: Spent 215ms on a formula simplification. DAG size of input: 46 DAG size of output 43 [2018-04-05 15:16:17,528 WARN L151 SmtUtils]: Spent 157ms on a formula simplification. DAG size of input: 42 DAG size of output 40 [2018-04-05 15:16:18,614 WARN L148 SmtUtils]: Spent 429ms on a formula simplification that was a NOOP. DAG size: 41 [2018-04-05 15:16:19,545 WARN L151 SmtUtils]: Spent 124ms on a formula simplification. DAG size of input: 36 DAG size of output 33 [2018-04-05 15:16:20,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:16:20,495 INFO L93 Difference]: Finished difference Result 129 states and 139 transitions. [2018-04-05 15:16:20,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-05 15:16:20,496 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 38 [2018-04-05 15:16:20,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:16:20,509 INFO L225 Difference]: With dead ends: 129 [2018-04-05 15:16:20,509 INFO L226 Difference]: Without dead ends: 128 [2018-04-05 15:16:20,510 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=229, Invalid=1331, Unknown=0, NotChecked=0, Total=1560 [2018-04-05 15:16:20,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2018-04-05 15:16:20,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 80. [2018-04-05 15:16:20,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-04-05 15:16:20,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 85 transitions. [2018-04-05 15:16:20,560 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 85 transitions. Word has length 38 [2018-04-05 15:16:20,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:16:20,560 INFO L459 AbstractCegarLoop]: Abstraction has 80 states and 85 transitions. [2018-04-05 15:16:20,560 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-04-05 15:16:20,560 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 85 transitions. [2018-04-05 15:16:20,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-04-05 15:16:20,562 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:16:20,562 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] [2018-04-05 15:16:20,562 INFO L408 AbstractCegarLoop]: === Iteration 8 === [cstrchrErr4RequiresViolation, cstrchrErr2RequiresViolation, cstrchrErr5RequiresViolation, cstrchrErr3RequiresViolation, cstrchrErr1RequiresViolation, cstrchrErr0RequiresViolation, __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__build_nondet_StringErr1RequiresViolation, __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__build_nondet_StringErr0RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-05 15:16:20,562 INFO L82 PathProgramCache]: Analyzing trace with hash -709295672, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:16:20,608 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:16:20,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:16:20,686 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:16:21,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:16:21,176 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:16:21,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:16:21,756 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:16:21,756 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10, 9] imperfect sequences [] total 13 [2018-04-05 15:16:21,757 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-04-05 15:16:21,757 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-04-05 15:16:21,757 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2018-04-05 15:16:21,758 INFO L87 Difference]: Start difference. First operand 80 states and 85 transitions. Second operand 14 states. [2018-04-05 15:16:23,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:16:23,572 INFO L93 Difference]: Finished difference Result 106 states and 112 transitions. [2018-04-05 15:16:23,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-05 15:16:23,573 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 40 [2018-04-05 15:16:23,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:16:23,575 INFO L225 Difference]: With dead ends: 106 [2018-04-05 15:16:23,575 INFO L226 Difference]: Without dead ends: 105 [2018-04-05 15:16:23,576 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2018-04-05 15:16:23,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2018-04-05 15:16:23,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 86. [2018-04-05 15:16:23,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2018-04-05 15:16:23,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 92 transitions. [2018-04-05 15:16:23,612 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 92 transitions. Word has length 40 [2018-04-05 15:16:23,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:16:23,622 INFO L459 AbstractCegarLoop]: Abstraction has 86 states and 92 transitions. [2018-04-05 15:16:23,622 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-04-05 15:16:23,622 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 92 transitions. [2018-04-05 15:16:23,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-04-05 15:16:23,623 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:16:23,624 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:16:23,624 INFO L408 AbstractCegarLoop]: === Iteration 9 === [cstrchrErr4RequiresViolation, cstrchrErr2RequiresViolation, cstrchrErr5RequiresViolation, cstrchrErr3RequiresViolation, cstrchrErr1RequiresViolation, cstrchrErr0RequiresViolation, __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__build_nondet_StringErr1RequiresViolation, __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__build_nondet_StringErr0RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-05 15:16:23,624 INFO L82 PathProgramCache]: Analyzing trace with hash -709295671, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:16:23,645 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:16:23,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:16:23,740 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:16:24,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:16:24,299 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:16:24,548 WARN L148 SmtUtils]: Spent 147ms on a formula simplification that was a NOOP. DAG size: 21 [2018-04-05 15:16:24,658 WARN L148 SmtUtils]: Spent 109ms on a formula simplification that was a NOOP. DAG size: 21 [2018-04-05 15:16:25,803 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 [2018-04-05 15:16:25,803 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:16:25,809 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:16:25,810 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:3 [2018-04-05 15:16:25,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:16:25,907 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:16:25,907 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 19 [2018-04-05 15:16:25,908 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-05 15:16:25,908 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-05 15:16:25,908 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2018-04-05 15:16:25,909 INFO L87 Difference]: Start difference. First operand 86 states and 92 transitions. Second operand 20 states. [2018-04-05 15:16:27,539 WARN L148 SmtUtils]: Spent 104ms on a formula simplification that was a NOOP. DAG size: 27 [2018-04-05 15:16:27,725 WARN L148 SmtUtils]: Spent 118ms on a formula simplification that was a NOOP. DAG size: 35 [2018-04-05 15:16:27,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:16:27,913 INFO L93 Difference]: Finished difference Result 105 states and 111 transitions. [2018-04-05 15:16:27,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-05 15:16:27,914 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 40 [2018-04-05 15:16:27,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:16:27,916 INFO L225 Difference]: With dead ends: 105 [2018-04-05 15:16:27,916 INFO L226 Difference]: Without dead ends: 104 [2018-04-05 15:16:27,918 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 59 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=123, Invalid=747, Unknown=0, NotChecked=0, Total=870 [2018-04-05 15:16:27,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-04-05 15:16:27,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 86. [2018-04-05 15:16:27,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2018-04-05 15:16:27,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 91 transitions. [2018-04-05 15:16:27,955 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 91 transitions. Word has length 40 [2018-04-05 15:16:27,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:16:27,956 INFO L459 AbstractCegarLoop]: Abstraction has 86 states and 91 transitions. [2018-04-05 15:16:27,956 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-05 15:16:27,956 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 91 transitions. [2018-04-05 15:16:27,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-04-05 15:16:27,963 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:16:27,963 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] [2018-04-05 15:16:27,963 INFO L408 AbstractCegarLoop]: === Iteration 10 === [cstrchrErr4RequiresViolation, cstrchrErr2RequiresViolation, cstrchrErr5RequiresViolation, cstrchrErr3RequiresViolation, cstrchrErr1RequiresViolation, cstrchrErr0RequiresViolation, __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__build_nondet_StringErr1RequiresViolation, __U_MULTI_fcstrchr_unsafe_false_valid_deref_i__build_nondet_StringErr0RequiresViolation, mainErr1RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr2AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr3AssertViolationMEMORY_FREE]=== [2018-04-05 15:16:27,964 INFO L82 PathProgramCache]: Analyzing trace with hash -1408288216, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:16:27,992 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:16:28,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-05 15:16:28,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-05 15:16:28,312 INFO L421 BasicCegarLoop]: Counterexample might be feasible [2018-04-05 15:16:28,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.04 03:16:28 BoogieIcfgContainer [2018-04-05 15:16:28,386 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-05 15:16:28,387 INFO L168 Benchmark]: Toolchain (without parser) took 29225.82 ms. Allocated memory was 303.6 MB in the beginning and 552.6 MB in the end (delta: 249.0 MB). Free memory was 240.7 MB in the beginning and 392.1 MB in the end (delta: -151.4 MB). Peak memory consumption was 97.7 MB. Max. memory is 5.3 GB. [2018-04-05 15:16:28,388 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 303.6 MB. Free memory is still 264.7 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-05 15:16:28,389 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1013.80 ms. Allocated memory is still 303.6 MB. Free memory was 240.7 MB in the beginning and 216.7 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 5.3 GB. [2018-04-05 15:16:28,389 INFO L168 Benchmark]: Boogie Preprocessor took 139.63 ms. Allocated memory is still 303.6 MB. Free memory was 216.7 MB in the beginning and 214.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-04-05 15:16:28,390 INFO L168 Benchmark]: RCFGBuilder took 1529.21 ms. Allocated memory was 303.6 MB in the beginning and 464.5 MB in the end (delta: 161.0 MB). Free memory was 214.7 MB in the beginning and 400.1 MB in the end (delta: -185.4 MB). Peak memory consumption was 22.2 MB. Max. memory is 5.3 GB. [2018-04-05 15:16:28,398 INFO L168 Benchmark]: TraceAbstraction took 26523.78 ms. Allocated memory was 464.5 MB in the beginning and 552.6 MB in the end (delta: 88.1 MB). Free memory was 398.0 MB in the beginning and 392.1 MB in the end (delta: 5.9 MB). Peak memory consumption was 94.0 MB. Max. memory is 5.3 GB. [2018-04-05 15:16:28,402 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 303.6 MB. Free memory is still 264.7 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 1013.80 ms. Allocated memory is still 303.6 MB. Free memory was 240.7 MB in the beginning and 216.7 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 139.63 ms. Allocated memory is still 303.6 MB. Free memory was 216.7 MB in the beginning and 214.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 1529.21 ms. Allocated memory was 303.6 MB in the beginning and 464.5 MB in the end (delta: 161.0 MB). Free memory was 214.7 MB in the beginning and 400.1 MB in the end (delta: -185.4 MB). Peak memory consumption was 22.2 MB. Max. memory is 5.3 GB. * TraceAbstraction took 26523.78 ms. Allocated memory was 464.5 MB in the beginning and 552.6 MB in the end (delta: 88.1 MB). Free memory was 398.0 MB in the beginning and 392.1 MB in the end (delta: 5.9 MB). Peak memory consumption was 94.0 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 557]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L556] CALL, EXPR build_nondet_String() [L541] int length = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=1, length=1] [L542] COND FALSE !(length < 1) VAL [length=1] [L545] EXPR, FCALL malloc(length * sizeof(char)) VAL [length=1, malloc(length * sizeof(char))={6:0}] [L545] char* nondetString = (char*) malloc(length * sizeof(char)); VAL [length=1, malloc(length * sizeof(char))={6:0}, nondetString={6:0}] [L546] FCALL nondetString[length-1] = '\0' VAL [length=1, malloc(length * sizeof(char))={6:0}, nondetString={6:0}] [L547] RET return nondetString; VAL [\result={6:0}, length=1, malloc(length * sizeof(char))={6:0}, nondetString={6:0}] [L556] EXPR build_nondet_String() VAL [build_nondet_String()={6:0}] [L556] char* s = build_nondet_String(); VAL [build_nondet_String()={6:0}, s={6:0}] [L557] CALL cstrchr(s,__VERIFIER_nondet_int()) VAL [\old(c)=-1, s={6:0}] [L551] EXPR, FCALL \read(*s) VAL [\old(c)=-1, \read(*s)=0, c=-1, s={6:0}, s={6:0}] [L551] *s != '\0' && *s != (char)c VAL [*s != '\0' && *s != (char)c=0, \old(c)=-1, \read(*s)=0, c=-1, s={6:0}, s={6:0}] [L551] COND FALSE !(*s != '\0' && *s != (char)c) VAL [*s != '\0' && *s != (char)c=0, \old(c)=-1, \read(*s)=0, c=-1, s={6:0}, s={6:0}] [L551] COND FALSE !(*s != '\0' && *s != (char)c) VAL [*s != '\0' && *s != (char)c=0, \old(c)=-1, \read(*s)=0, c=-1, s={6:0}, s={6:0}] [L553] EXPR, FCALL \read(*s) VAL [\old(c)=-1, \read(*s)=0, c=-1, s={6:0}, s={6:0}] [L553] COND FALSE, EXPR !((*s == c) ? (char *) s : 0) VAL [\old(c)=-1, \read(*s)=0, c=-1, s={6:0}, s={6:0}] [L553] EXPR (*s == c) ? (char *) s : 0 VAL [(*s == c) ? (char *) s : 0={0:0}, \old(c)=-1, \read(*s)=0, c=-1, s={6:0}, s={6:0}] [L553] RET return ( (*s == c) ? (char *) s : 0 ); VAL [(*s == c) ? (char *) s : 0={0:0}, \old(c)=-1, \read(*s)=0, \result={0:0}, c=-1, s={6:0}, s={6:0}] [L557] cstrchr(s,__VERIFIER_nondet_int()) VAL [__VERIFIER_nondet_int()=-1, cstrchr(s,__VERIFIER_nondet_int())={0:0}, s={6:0}] [L557] FCALL cstrchr(s,__VERIFIER_nondet_int()) - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 85 locations, 13 error locations. UNSAFE Result, 26.3s OverallTime, 10 OverallIterations, 2 TraceHistogramMax, 13.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 549 SDtfs, 809 SDslu, 3049 SDs, 0 SdLazy, 1350 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 580 GetRequests, 443 SyntacticMatches, 5 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 13.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=86occurred in iteration=8, 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: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 86 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 10.9s InterpolantComputationTime, 310 NumberOfCodeBlocks, 310 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 522 ConstructedInterpolants, 37 QuantifiedInterpolants, 105562 SizeOfPredicates, 63 NumberOfNonLiveVariables, 870 ConjunctsInSsa, 152 ConjunctsInUnsatCore, 18 InterpolantComputations, 16 PerfectInterpolantSequences, 8/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrchr_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-05_15-16-28-434.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrchr_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-05_15-16-28-434.csv Received shutdown request...