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/reverse_array_alloca_unsafe_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cf7e2d-m [2018-03-29 20:13:16,453 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-03-29 20:13:16,455 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-03-29 20:13:16,469 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-03-29 20:13:16,469 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-03-29 20:13:16,470 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-03-29 20:13:16,471 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-03-29 20:13:16,472 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-03-29 20:13:16,475 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-03-29 20:13:16,476 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-03-29 20:13:16,477 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-03-29 20:13:16,477 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-03-29 20:13:16,478 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-03-29 20:13:16,480 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-03-29 20:13:16,481 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-03-29 20:13:16,483 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-03-29 20:13:16,485 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-03-29 20:13:16,487 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-03-29 20:13:16,488 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-03-29 20:13:16,489 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-03-29 20:13:16,492 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-03-29 20:13:16,499 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 [2018-03-29 20:13:16,523 INFO L110 SettingsManager]: Loading preferences was successful [2018-03-29 20:13:16,523 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-03-29 20:13:16,524 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-03-29 20:13:16,524 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-03-29 20:13:16,525 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-03-29 20:13:16,525 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-03-29 20:13:16,525 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-03-29 20:13:16,525 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-03-29 20:13:16,526 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-03-29 20:13:16,526 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-03-29 20:13:16,526 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-03-29 20:13:16,526 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-03-29 20:13:16,527 INFO L133 SettingsManager]: * sizeof long=4 [2018-03-29 20:13:16,527 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-03-29 20:13:16,527 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-03-29 20:13:16,527 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-03-29 20:13:16,527 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-03-29 20:13:16,527 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-03-29 20:13:16,528 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-03-29 20:13:16,528 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-03-29 20:13:16,528 INFO L133 SettingsManager]: * sizeof long double=12 [2018-03-29 20:13:16,528 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-03-29 20:13:16,528 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-03-29 20:13:16,528 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-03-29 20:13:16,529 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-03-29 20:13:16,529 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-03-29 20:13:16,529 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-03-29 20:13:16,529 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-03-29 20:13:16,529 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-03-29 20:13:16,530 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-03-29 20:13:16,530 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-03-29 20:13:16,530 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:13:16,530 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-03-29 20:13:16,531 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-03-29 20:13:16,531 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-03-29 20:13:16,531 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-03-29 20:13:16,531 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-03-29 20:13:16,565 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-03-29 20:13:16,576 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-03-29 20:13:16,579 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-03-29 20:13:16,581 INFO L271 PluginConnector]: Initializing CDTParser... [2018-03-29 20:13:16,581 INFO L276 PluginConnector]: CDTParser initialized [2018-03-29 20:13:16,582 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:16,876 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGd1fd5b191 [2018-03-29 20:13:17,067 INFO L287 CDTParser]: IsIndexed: true [2018-03-29 20:13:17,067 INFO L288 CDTParser]: Found 1 translation units. [2018-03-29 20:13:17,068 INFO L168 CDTParser]: Scanning reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,079 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-03-29 20:13:17,079 INFO L215 ultiparseSymbolTable]: [2018-03-29 20:13:17,079 INFO L218 ultiparseSymbolTable]: Function table: [2018-03-29 20:13:17,079 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____bswap_32 ('__bswap_32') in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,079 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____bswap_64 ('__bswap_64') in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,080 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,080 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-03-29 20:13:17,080 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____blkcnt64_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,080 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__ino_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,080 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____socklen_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,080 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__ldiv_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,080 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__fsfilcnt_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,080 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__pid_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,081 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____fsfilcnt64_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,081 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__int32_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,081 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____mode_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,081 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__u_short in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,081 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__gid_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,081 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____fsblkcnt64_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,081 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__u_int64_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,081 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____time_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,081 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__int8_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,081 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__pthread_mutex_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,082 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__pthread_once_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,082 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____rlim_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,082 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__pthread_attr_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,082 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__register_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,082 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__div_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,082 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____intptr_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,082 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__size_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,082 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__time_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,082 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__off_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,082 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____useconds_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,082 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__pthread_condattr_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,082 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____uint32_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,082 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____rlim64_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,083 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__fd_set in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,083 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____qaddr_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,083 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__blksize_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,083 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____blksize_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,083 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____int64_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,083 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____daddr_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,083 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__caddr_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,083 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____key_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,083 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____uint8_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,083 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__u_quad_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,083 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__loff_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,083 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____fsfilcnt_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,083 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__suseconds_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,084 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____caddr_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,084 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____WAIT_STATUS in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,084 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__int64_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,084 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____u_short in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,084 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____clock_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,084 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____int8_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,084 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__mode_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,084 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____dev_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,084 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____loff_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,084 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__fsid_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,084 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__daddr_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,084 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__pthread_rwlockattr_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,084 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____int16_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,085 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____uint16_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,085 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____off_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,085 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__clock_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,085 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____gid_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,085 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____ino64_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,085 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__u_long in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,085 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__ulong in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,085 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__pthread_barrier_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,086 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____u_quad_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,086 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__ushort in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,086 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____quad_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,086 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____fsid_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,086 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____sigset_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,086 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____syscall_slong_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,086 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____ino_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,086 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__sigset_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,087 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__pthread_spinlock_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,087 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__pthread_key_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,087 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____clockid_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,087 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____u_long in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,087 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__int16_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,087 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____pthread_list_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,087 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__pthread_barrierattr_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,087 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____fsblkcnt_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,087 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____blkcnt_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,088 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__pthread_cond_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,088 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____u_int in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,088 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__u_int16_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,088 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__blkcnt_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,088 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__quad_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,088 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__pthread_rwlock_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,088 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__u_char in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,088 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__id_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,089 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__u_int8_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,089 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__uid_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,089 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__lldiv_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,089 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__fsblkcnt_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,089 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__dev_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,089 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__wchar_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,089 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____uid_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,089 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__uint in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,089 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__nlink_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,090 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____u_char in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,090 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____off64_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,090 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____suseconds_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,090 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____fsword_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,090 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__fd_mask in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,090 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____uint64_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,090 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__ssize_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,091 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__pthread_mutexattr_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,091 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____pid_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,091 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__key_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,091 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__u_int in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,091 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____timer_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,091 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____int32_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,091 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__clockid_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,091 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__timer_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,092 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____nlink_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,092 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____syscall_ulong_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,092 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____id_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,092 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____ssize_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,092 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____sig_atomic_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,092 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__u_int32_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,092 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i__pthread_t in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,092 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____fd_mask in reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:17,109 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGd1fd5b191 [2018-03-29 20:13:17,113 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-03-29 20:13:17,117 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-03-29 20:13:17,118 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-03-29 20:13:17,118 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-03-29 20:13:17,123 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-03-29 20:13:17,123 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.03 08:13:17" (1/1) ... [2018-03-29 20:13:17,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73508047 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:13:17, skipping insertion in model container [2018-03-29 20:13:17,126 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.03 08:13:17" (1/1) ... [2018-03-29 20:13:17,140 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-29 20:13:17,170 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-29 20:13:17,338 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-29 20:13:17,393 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-29 20:13:17,400 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 111 non ball SCCs. Number of states in SCCs 111. [2018-03-29 20:13:17,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:13:17 WrapperNode [2018-03-29 20:13:17,450 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-03-29 20:13:17,451 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-03-29 20:13:17,451 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-03-29 20:13:17,451 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-03-29 20:13:17,463 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:13:17" (1/1) ... [2018-03-29 20:13:17,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:13:17" (1/1) ... [2018-03-29 20:13:17,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:13:17" (1/1) ... [2018-03-29 20:13:17,479 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:13:17" (1/1) ... [2018-03-29 20:13:17,492 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:13:17" (1/1) ... [2018-03-29 20:13:17,498 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:13:17" (1/1) ... [2018-03-29 20:13:17,501 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:13:17" (1/1) ... [2018-03-29 20:13:17,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-03-29 20:13:17,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-03-29 20:13:17,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-03-29 20:13:17,507 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-03-29 20:13:17,508 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:13:17" (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 [2018-03-29 20:13:17,648 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-03-29 20:13:17,648 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-03-29 20:13:17,648 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____bswap_32 [2018-03-29 20:13:17,648 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____bswap_64 [2018-03-29 20:13:17,648 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-03-29 20:13:17,648 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____bswap_32 [2018-03-29 20:13:17,648 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_freverse_array_alloca_unsafe_false_valid_deref_i____bswap_64 [2018-03-29 20:13:17,649 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-03-29 20:13:17,649 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-03-29 20:13:17,649 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-03-29 20:13:17,649 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-03-29 20:13:17,649 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-03-29 20:13:17,649 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-03-29 20:13:17,649 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-03-29 20:13:17,649 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-03-29 20:13:17,649 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-03-29 20:13:17,650 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-03-29 20:13:17,650 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-03-29 20:13:17,650 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-03-29 20:13:17,650 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-03-29 20:13:17,650 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-03-29 20:13:17,650 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-03-29 20:13:17,651 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-03-29 20:13:17,651 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-03-29 20:13:17,651 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-03-29 20:13:17,651 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-03-29 20:13:17,651 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-03-29 20:13:17,651 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-03-29 20:13:17,651 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-03-29 20:13:17,652 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-03-29 20:13:17,652 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-03-29 20:13:17,652 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-03-29 20:13:17,652 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-03-29 20:13:17,652 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-03-29 20:13:17,652 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-03-29 20:13:17,652 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-03-29 20:13:17,653 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-03-29 20:13:17,653 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-03-29 20:13:17,653 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-03-29 20:13:17,653 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-03-29 20:13:17,653 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-03-29 20:13:17,653 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-03-29 20:13:17,653 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-03-29 20:13:17,653 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-03-29 20:13:17,653 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-03-29 20:13:17,653 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-03-29 20:13:17,653 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-03-29 20:13:17,654 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-03-29 20:13:17,654 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-03-29 20:13:17,654 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-03-29 20:13:17,654 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-03-29 20:13:17,654 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-03-29 20:13:17,654 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-03-29 20:13:17,654 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-03-29 20:13:17,654 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-03-29 20:13:17,654 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-03-29 20:13:17,655 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-03-29 20:13:17,655 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-03-29 20:13:17,655 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-03-29 20:13:17,655 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-03-29 20:13:17,655 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-03-29 20:13:17,655 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-03-29 20:13:17,655 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-03-29 20:13:17,655 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-03-29 20:13:17,655 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-03-29 20:13:17,655 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-03-29 20:13:17,655 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-03-29 20:13:17,655 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-03-29 20:13:17,656 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-03-29 20:13:17,656 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-03-29 20:13:17,656 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-03-29 20:13:17,656 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-03-29 20:13:17,656 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-03-29 20:13:17,656 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-03-29 20:13:17,656 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-03-29 20:13:17,656 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-03-29 20:13:17,656 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-03-29 20:13:17,656 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-03-29 20:13:17,656 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-03-29 20:13:17,657 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-03-29 20:13:17,657 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-03-29 20:13:17,657 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-03-29 20:13:17,657 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-03-29 20:13:17,657 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-03-29 20:13:17,657 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-03-29 20:13:17,657 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-03-29 20:13:17,657 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-03-29 20:13:17,657 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-03-29 20:13:17,657 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-03-29 20:13:17,658 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-03-29 20:13:17,658 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-03-29 20:13:17,658 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-03-29 20:13:17,658 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-03-29 20:13:17,658 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-03-29 20:13:17,658 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-03-29 20:13:17,658 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-03-29 20:13:17,658 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-03-29 20:13:17,659 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-03-29 20:13:17,659 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-03-29 20:13:17,659 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-03-29 20:13:17,659 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-03-29 20:13:17,659 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-03-29 20:13:17,659 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-03-29 20:13:17,659 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-03-29 20:13:17,659 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-03-29 20:13:17,659 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-03-29 20:13:17,660 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-03-29 20:13:17,660 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-03-29 20:13:17,660 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-03-29 20:13:17,660 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-03-29 20:13:17,660 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-03-29 20:13:17,660 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-03-29 20:13:17,660 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-03-29 20:13:17,660 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-03-29 20:13:17,661 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-03-29 20:13:17,661 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-03-29 20:13:18,107 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-03-29 20:13:18,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 08:13:18 BoogieIcfgContainer [2018-03-29 20:13:18,108 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-03-29 20:13:18,110 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-03-29 20:13:18,110 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-03-29 20:13:18,113 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-03-29 20:13:18,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.03 08:13:17" (1/3) ... [2018-03-29 20:13:18,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d595358 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.03 08:13:18, skipping insertion in model container [2018-03-29 20:13:18,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:13:17" (2/3) ... [2018-03-29 20:13:18,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d595358 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.03 08:13:18, skipping insertion in model container [2018-03-29 20:13:18,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 08:13:18" (3/3) ... [2018-03-29 20:13:18,117 INFO L107 eAbstractionObserver]: Analyzing ICFG reverse_array_alloca_unsafe_false-valid-deref.i [2018-03-29 20:13:18,128 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-03-29 20:13:18,137 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 21 error locations. [2018-03-29 20:13:18,188 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-03-29 20:13:18,189 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-03-29 20:13:18,189 INFO L370 AbstractCegarLoop]: Hoare is true [2018-03-29 20:13:18,189 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-03-29 20:13:18,189 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-03-29 20:13:18,189 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-03-29 20:13:18,190 INFO L374 AbstractCegarLoop]: Difference is false [2018-03-29 20:13:18,190 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-03-29 20:13:18,190 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-03-29 20:13:18,190 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-03-29 20:13:18,205 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states. [2018-03-29 20:13:18,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-03-29 20:13:18,209 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:13:18,210 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:13:18,210 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr20EnsuresViolationMEMORY_LEAK, mainErr9RequiresViolation, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation, mainErr19RequiresViolation]=== [2018-03-29 20:13:18,214 INFO L82 PathProgramCache]: Analyzing trace with hash -1285601544, 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 [2018-03-29 20:13:18,226 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:13:18,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:13:18,265 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:13:18,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:13:18,284 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:13:18,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:13:18,325 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:13:18,326 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2018-03-29 20:13:18,327 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-03-29 20:13:18,337 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-03-29 20:13:18,337 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-03-29 20:13:18,339 INFO L87 Difference]: Start difference. First operand 92 states. Second operand 2 states. [2018-03-29 20:13:18,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:13:18,361 INFO L93 Difference]: Finished difference Result 143 states and 152 transitions. [2018-03-29 20:13:18,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-03-29 20:13:18,362 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-03-29 20:13:18,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:13:18,369 INFO L225 Difference]: With dead ends: 143 [2018-03-29 20:13:18,369 INFO L226 Difference]: Without dead ends: 89 [2018-03-29 20:13:18,371 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-03-29 20:13:18,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-03-29 20:13:18,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2018-03-29 20:13:18,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-03-29 20:13:18,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 94 transitions. [2018-03-29 20:13:18,408 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 94 transitions. Word has length 19 [2018-03-29 20:13:18,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:13:18,409 INFO L459 AbstractCegarLoop]: Abstraction has 89 states and 94 transitions. [2018-03-29 20:13:18,409 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-03-29 20:13:18,409 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 94 transitions. [2018-03-29 20:13:18,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-03-29 20:13:18,409 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:13:18,410 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:13:18,410 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr20EnsuresViolationMEMORY_LEAK, mainErr9RequiresViolation, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation, mainErr19RequiresViolation]=== [2018-03-29 20:13:18,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1198971892, 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 [2018-03-29 20:13:18,417 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:13:18,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:13:18,436 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:13:18,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:13:18,480 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:13:18,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:13:18,539 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:13:18,540 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2018-03-29 20:13:18,541 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-03-29 20:13:18,541 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-03-29 20:13:18,542 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-03-29 20:13:18,542 INFO L87 Difference]: Start difference. First operand 89 states and 94 transitions. Second operand 5 states. [2018-03-29 20:13:18,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:13:18,690 INFO L93 Difference]: Finished difference Result 227 states and 238 transitions. [2018-03-29 20:13:18,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-03-29 20:13:18,691 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-03-29 20:13:18,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:13:18,693 INFO L225 Difference]: With dead ends: 227 [2018-03-29 20:13:18,693 INFO L226 Difference]: Without dead ends: 179 [2018-03-29 20:13:18,695 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-03-29 20:13:18,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2018-03-29 20:13:18,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 94. [2018-03-29 20:13:18,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2018-03-29 20:13:18,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 99 transitions. [2018-03-29 20:13:18,706 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 99 transitions. Word has length 20 [2018-03-29 20:13:18,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:13:18,707 INFO L459 AbstractCegarLoop]: Abstraction has 94 states and 99 transitions. [2018-03-29 20:13:18,707 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-03-29 20:13:18,707 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 99 transitions. [2018-03-29 20:13:18,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-03-29 20:13:18,708 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:13:18,708 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:13:18,708 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr20EnsuresViolationMEMORY_LEAK, mainErr9RequiresViolation, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation, mainErr19RequiresViolation]=== [2018-03-29 20:13:18,708 INFO L82 PathProgramCache]: Analyzing trace with hash -1198971856, 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 [2018-03-29 20:13:18,720 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:13:18,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:13:18,742 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:13:18,771 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 [2018-03-29 20:13:18,774 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:13:18,776 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:13:18,777 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-03-29 20:13:18,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:13:18,790 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:13:18,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:13:18,832 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:13:18,832 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-03-29 20:13:18,833 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-03-29 20:13:18,833 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-03-29 20:13:18,833 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-03-29 20:13:18,833 INFO L87 Difference]: Start difference. First operand 94 states and 99 transitions. Second operand 4 states. [2018-03-29 20:13:18,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:13:18,936 INFO L93 Difference]: Finished difference Result 94 states and 99 transitions. [2018-03-29 20:13:18,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-03-29 20:13:18,936 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-03-29 20:13:18,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:13:18,937 INFO L225 Difference]: With dead ends: 94 [2018-03-29 20:13:18,937 INFO L226 Difference]: Without dead ends: 90 [2018-03-29 20:13:18,938 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-03-29 20:13:18,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2018-03-29 20:13:18,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2018-03-29 20:13:18,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2018-03-29 20:13:18,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 95 transitions. [2018-03-29 20:13:18,947 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 95 transitions. Word has length 20 [2018-03-29 20:13:18,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:13:18,948 INFO L459 AbstractCegarLoop]: Abstraction has 90 states and 95 transitions. [2018-03-29 20:13:18,948 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-03-29 20:13:18,948 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 95 transitions. [2018-03-29 20:13:18,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-03-29 20:13:18,949 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:13:18,949 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:13:18,949 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr20EnsuresViolationMEMORY_LEAK, mainErr9RequiresViolation, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation, mainErr19RequiresViolation]=== [2018-03-29 20:13:18,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1198971855, 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 [2018-03-29 20:13:18,958 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:13:18,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:13:18,972 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:13:19,011 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-03-29 20:13:19,012 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:13:19,028 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-29 20:13:19,028 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:14 [2018-03-29 20:13:19,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:13:19,191 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:13:19,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:13:19,306 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:13:19,307 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2018-03-29 20:13:19,307 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-03-29 20:13:19,307 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-03-29 20:13:19,308 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-03-29 20:13:19,308 INFO L87 Difference]: Start difference. First operand 90 states and 95 transitions. Second operand 9 states. [2018-03-29 20:13:19,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:13:19,744 INFO L93 Difference]: Finished difference Result 164 states and 177 transitions. [2018-03-29 20:13:19,744 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-03-29 20:13:19,745 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2018-03-29 20:13:19,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:13:19,746 INFO L225 Difference]: With dead ends: 164 [2018-03-29 20:13:19,747 INFO L226 Difference]: Without dead ends: 161 [2018-03-29 20:13:19,747 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2018-03-29 20:13:19,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2018-03-29 20:13:19,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 89. [2018-03-29 20:13:19,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-03-29 20:13:19,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 94 transitions. [2018-03-29 20:13:19,760 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 94 transitions. Word has length 20 [2018-03-29 20:13:19,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:13:19,761 INFO L459 AbstractCegarLoop]: Abstraction has 89 states and 94 transitions. [2018-03-29 20:13:19,761 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-03-29 20:13:19,761 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 94 transitions. [2018-03-29 20:13:19,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-03-29 20:13:19,762 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:13:19,762 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] [2018-03-29 20:13:19,762 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr20EnsuresViolationMEMORY_LEAK, mainErr9RequiresViolation, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation, mainErr19RequiresViolation]=== [2018-03-29 20:13:19,763 INFO L82 PathProgramCache]: Analyzing trace with hash -1463453992, 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 [2018-03-29 20:13:19,772 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:13:19,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:13:19,789 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:13:19,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:13:19,815 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:13:19,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:13:19,873 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:13:19,873 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2018-03-29 20:13:19,874 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-03-29 20:13:19,874 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-03-29 20:13:19,874 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-03-29 20:13:19,874 INFO L87 Difference]: Start difference. First operand 89 states and 94 transitions. Second operand 9 states. [2018-03-29 20:13:20,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:13:20,076 INFO L93 Difference]: Finished difference Result 212 states and 223 transitions. [2018-03-29 20:13:20,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-03-29 20:13:20,077 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2018-03-29 20:13:20,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:13:20,079 INFO L225 Difference]: With dead ends: 212 [2018-03-29 20:13:20,079 INFO L226 Difference]: Without dead ends: 165 [2018-03-29 20:13:20,080 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2018-03-29 20:13:20,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2018-03-29 20:13:20,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 91. [2018-03-29 20:13:20,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2018-03-29 20:13:20,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 96 transitions. [2018-03-29 20:13:20,090 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 96 transitions. Word has length 23 [2018-03-29 20:13:20,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:13:20,091 INFO L459 AbstractCegarLoop]: Abstraction has 91 states and 96 transitions. [2018-03-29 20:13:20,091 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-03-29 20:13:20,091 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 96 transitions. [2018-03-29 20:13:20,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-03-29 20:13:20,092 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:13:20,092 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] [2018-03-29 20:13:20,092 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr20EnsuresViolationMEMORY_LEAK, mainErr9RequiresViolation, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation, mainErr19RequiresViolation]=== [2018-03-29 20:13:20,092 INFO L82 PathProgramCache]: Analyzing trace with hash -1463453956, 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 [2018-03-29 20:13:20,099 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:13:20,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:13:20,110 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:13:20,128 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-03-29 20:13:20,128 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:13:20,136 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-29 20:13:20,136 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:14 [2018-03-29 20:13:20,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:13:20,170 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:13:20,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:13:20,246 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:13:20,247 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2018-03-29 20:13:20,247 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-03-29 20:13:20,247 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-03-29 20:13:20,247 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2018-03-29 20:13:20,247 INFO L87 Difference]: Start difference. First operand 91 states and 96 transitions. Second operand 13 states. [2018-03-29 20:13:20,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:13:20,694 INFO L93 Difference]: Finished difference Result 165 states and 174 transitions. [2018-03-29 20:13:20,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-03-29 20:13:20,694 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 23 [2018-03-29 20:13:20,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:13:20,696 INFO L225 Difference]: With dead ends: 165 [2018-03-29 20:13:20,696 INFO L226 Difference]: Without dead ends: 164 [2018-03-29 20:13:20,697 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=133, Invalid=373, Unknown=0, NotChecked=0, Total=506 [2018-03-29 20:13:20,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2018-03-29 20:13:20,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 86. [2018-03-29 20:13:20,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2018-03-29 20:13:20,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 91 transitions. [2018-03-29 20:13:20,710 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 91 transitions. Word has length 23 [2018-03-29 20:13:20,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:13:20,710 INFO L459 AbstractCegarLoop]: Abstraction has 86 states and 91 transitions. [2018-03-29 20:13:20,711 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-03-29 20:13:20,711 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 91 transitions. [2018-03-29 20:13:20,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-03-29 20:13:20,712 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:13:20,712 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] [2018-03-29 20:13:20,712 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr20EnsuresViolationMEMORY_LEAK, mainErr9RequiresViolation, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation, mainErr19RequiresViolation]=== [2018-03-29 20:13:20,712 INFO L82 PathProgramCache]: Analyzing trace with hash 493343348, 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 [2018-03-29 20:13:20,721 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:13:20,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-03-29 20:13:20,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-03-29 20:13:20,770 INFO L421 BasicCegarLoop]: Counterexample might be feasible [2018-03-29 20:13:20,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.03 08:13:20 BoogieIcfgContainer [2018-03-29 20:13:20,811 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-03-29 20:13:20,812 INFO L168 Benchmark]: Toolchain (without parser) took 3697.93 ms. Allocated memory was 305.7 MB in the beginning and 511.2 MB in the end (delta: 205.5 MB). Free memory was 242.1 MB in the beginning and 450.5 MB in the end (delta: -208.4 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-03-29 20:13:20,813 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 305.7 MB. Free memory is still 268.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-03-29 20:13:20,814 INFO L168 Benchmark]: CACSL2BoogieTranslator took 333.15 ms. Allocated memory is still 305.7 MB. Free memory was 242.1 MB in the beginning and 218.1 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 5.3 GB. [2018-03-29 20:13:20,814 INFO L168 Benchmark]: Boogie Preprocessor took 55.32 ms. Allocated memory is still 305.7 MB. Free memory was 218.1 MB in the beginning and 216.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-03-29 20:13:20,815 INFO L168 Benchmark]: RCFGBuilder took 601.73 ms. Allocated memory was 305.7 MB in the beginning and 468.7 MB in the end (delta: 163.1 MB). Free memory was 216.1 MB in the beginning and 402.0 MB in the end (delta: -185.9 MB). Peak memory consumption was 22.1 MB. Max. memory is 5.3 GB. [2018-03-29 20:13:20,815 INFO L168 Benchmark]: TraceAbstraction took 2701.25 ms. Allocated memory was 468.7 MB in the beginning and 511.2 MB in the end (delta: 42.5 MB). Free memory was 402.0 MB in the beginning and 450.5 MB in the end (delta: -48.5 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-03-29 20:13:20,818 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 305.7 MB. Free memory is still 268.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 333.15 ms. Allocated memory is still 305.7 MB. Free memory was 242.1 MB in the beginning and 218.1 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 55.32 ms. Allocated memory is still 305.7 MB. Free memory was 218.1 MB in the beginning and 216.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 601.73 ms. Allocated memory was 305.7 MB in the beginning and 468.7 MB in the end (delta: 163.1 MB). Free memory was 216.1 MB in the beginning and 402.0 MB in the end (delta: -185.9 MB). Peak memory consumption was 22.1 MB. Max. memory is 5.3 GB. * TraceAbstraction took 2701.25 ms. Allocated memory was 468.7 MB in the beginning and 511.2 MB in the end (delta: 42.5 MB). Free memory was 402.0 MB in the beginning and 450.5 MB in the end (delta: -48.5 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 549]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L541] int i, j, tmp; [L542] int length = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=1, length=1] [L543] COND FALSE !(length < 1) VAL [length=1] [L544] COND FALSE !(length % 2 == 0) VAL [length=1] [L545] EXPR, FCALL __builtin_alloca (length*sizeof(int)) VAL [__builtin_alloca (length*sizeof(int))={9:0}, length=1] [L545] int *arr = __builtin_alloca (length*sizeof(int)); VAL [__builtin_alloca (length*sizeof(int))={9:0}, arr={9:0}, length=1] [L546] i=0 VAL [__builtin_alloca (length*sizeof(int))={9:0}, arr={9:0}, i=0, length=1] [L546] COND TRUE i