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/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_Array.epf -i ../../../trunk/examples/svcomp/forester-heap/sll-optional_true-unreach-call_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-10 15:32:02,460 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-10 15:32:02,462 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-10 15:32:02,475 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-04-10 15:32:02,497 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_Array.epf [2018-04-10 15:32:02,513 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-10 15:32:02,513 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-10 15:32:02,514 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-10 15:32:02,514 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-10 15:32:02,514 INFO L133 SettingsManager]: * Use SBE=true [2018-04-10 15:32:02,514 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-10 15:32:02,515 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-10 15:32:02,515 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-10 15:32:02,515 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-10 15:32:02,515 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-10 15:32:02,515 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-10 15:32:02,515 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-10 15:32:02,515 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-10 15:32:02,515 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-10 15:32:02,516 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-10 15:32:02,516 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-10 15:32:02,516 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-10 15:32:02,516 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-10 15:32:02,516 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-10 15:32:02,516 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-10 15:32:02,517 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-10 15:32:02,517 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-04-10 15:32:02,543 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-10 15:32:02,552 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-10 15:32:02,556 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-10 15:32:02,557 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-10 15:32:02,557 INFO L276 PluginConnector]: CDTParser initialized [2018-04-10 15:32:02,558 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:02,920 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG9fbd1f763 [2018-04-10 15:32:03,077 INFO L287 CDTParser]: IsIndexed: true [2018-04-10 15:32:03,077 INFO L288 CDTParser]: Found 1 translation units. [2018-04-10 15:32:03,077 INFO L168 CDTParser]: Scanning sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,083 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-10 15:32:03,084 INFO L215 ultiparseSymbolTable]: [2018-04-10 15:32:03,084 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-10 15:32:03,084 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,084 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-10 15:32:03,084 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____fsblkcnt64_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,084 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____uint64_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,084 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____uid_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,084 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__ssize_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,085 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____fsword_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,085 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__pthread_once_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,085 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__pthread_attr_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,085 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__off_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,085 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____int8_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,085 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__timer_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,085 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__register_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,085 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____nlink_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,085 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____sig_atomic_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,085 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__u_int64_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,085 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__ino_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,085 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____useconds_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,085 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__pthread_condattr_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,085 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__loff_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,086 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__wchar_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,086 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____fsfilcnt64_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,086 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____fd_mask in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,086 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__ldiv_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,086 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__u_int8_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,086 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__pthread_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,086 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____int64_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,086 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____uint8_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,086 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____key_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,086 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____time_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,086 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____timer_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,086 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__int8_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,086 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____daddr_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,086 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____fsfilcnt_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,086 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__pthread_mutexattr_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,086 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__fd_mask in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,086 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__pthread_mutex_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,087 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__ushort in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,087 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____blkcnt_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,087 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____int32_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,087 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__clockid_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,087 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__time_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,087 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____pthread_slist_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,087 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____ssize_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,087 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__idtype_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,087 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____syscall_slong_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,087 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__key_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,087 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__uint in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,088 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__id_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,088 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__int32_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,088 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__pthread_rwlock_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,088 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____u_int in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,088 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____off_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,088 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____blkcnt64_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,088 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__nlink_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,088 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__fsfilcnt_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,088 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__dev_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,088 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__pthread_rwlockattr_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,088 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____ino64_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,088 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__sigset_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,089 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__u_int32_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,089 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__u_quad_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,089 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__ulong in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,089 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__u_char in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,089 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____caddr_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,089 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__blkcnt_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,089 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__pthread_key_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,089 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__pthread_barrierattr_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,089 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__lldiv_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,089 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____dev_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,089 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____fsblkcnt_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,090 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__uid_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,090 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__int16_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,090 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____uint16_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,090 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__daddr_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,090 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____id_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,090 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____syscall_ulong_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,090 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____gid_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,090 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____blksize_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,090 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__fsblkcnt_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,090 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____u_char in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,090 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____off64_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,090 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____suseconds_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,090 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____quad_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,091 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____qaddr_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,091 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__u_int in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,091 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____rlim64_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,091 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____pid_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,091 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____u_short in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,091 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__int64_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,091 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____sigset_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,091 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__suseconds_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,091 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__pthread_cond_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,091 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____loff_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,091 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____rlim_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,091 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__size_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,092 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__fsid_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,092 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__u_int16_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,092 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____u_quad_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,092 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____clock_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,092 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____intptr_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,092 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____clockid_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,092 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__u_long in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,092 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__pthread_barrier_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,092 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__quad_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,092 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__mode_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,092 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____socklen_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,092 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____uint32_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,092 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__pid_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,092 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__clock_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,093 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__fd_set in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,093 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__gid_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,093 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____fsid_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,093 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____int16_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,093 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__div_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,093 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__SLL in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,093 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____u_long in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,093 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__u_short in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,093 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__pthread_spinlock_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,093 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__caddr_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,093 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____mode_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,093 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i__blksize_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,094 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_optional_true_unreach_call_true_valid_memsafety_i____ino_t in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,107 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG9fbd1f763 [2018-04-10 15:32:03,111 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-10 15:32:03,111 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-10 15:32:03,112 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-10 15:32:03,112 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-10 15:32:03,116 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-10 15:32:03,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.04 03:32:03" (1/1) ... [2018-04-10 15:32:03,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71eba08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 03:32:03, skipping insertion in model container [2018-04-10 15:32:03,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.04 03:32:03" (1/1) ... [2018-04-10 15:32:03,128 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-10 15:32:03,151 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-10 15:32:03,271 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-10 15:32:03,309 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-10 15:32:03,315 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 115 non ball SCCs. Number of states in SCCs 115. [2018-04-10 15:32:03,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 03:32:03 WrapperNode [2018-04-10 15:32:03,352 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-10 15:32:03,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-10 15:32:03,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-10 15:32:03,353 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-10 15:32:03,361 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 03:32:03" (1/1) ... [2018-04-10 15:32:03,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 03:32:03" (1/1) ... [2018-04-10 15:32:03,373 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 03:32:03" (1/1) ... [2018-04-10 15:32:03,373 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 03:32:03" (1/1) ... [2018-04-10 15:32:03,383 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 03:32:03" (1/1) ... [2018-04-10 15:32:03,388 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 03:32:03" (1/1) ... [2018-04-10 15:32:03,391 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 03:32:03" (1/1) ... [2018-04-10 15:32:03,394 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-10 15:32:03,395 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-10 15:32:03,395 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-10 15:32:03,395 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-10 15:32:03,396 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 03:32:03" (1/1) ... No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-10 15:32:03,489 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-10 15:32:03,490 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-10 15:32:03,490 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-10 15:32:03,490 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-10 15:32:03,490 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-10 15:32:03,490 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-10 15:32:03,490 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-10 15:32:03,490 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-10 15:32:03,490 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-10 15:32:03,490 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-10 15:32:03,490 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-10 15:32:03,490 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-10 15:32:03,490 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-10 15:32:03,491 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-10 15:32:03,491 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-10 15:32:03,491 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-10 15:32:03,491 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-10 15:32:03,491 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-10 15:32:03,491 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-10 15:32:03,491 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-10 15:32:03,491 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-10 15:32:03,491 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-10 15:32:03,491 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-10 15:32:03,492 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-10 15:32:03,492 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-10 15:32:03,492 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-10 15:32:03,492 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-10 15:32:03,492 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-10 15:32:03,492 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-10 15:32:03,492 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-10 15:32:03,492 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-10 15:32:03,492 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-10 15:32:03,492 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-10 15:32:03,493 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-10 15:32:03,493 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-10 15:32:03,493 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-10 15:32:03,493 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-10 15:32:03,493 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-10 15:32:03,493 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-10 15:32:03,493 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-10 15:32:03,493 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-10 15:32:03,493 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-10 15:32:03,494 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-10 15:32:03,494 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-10 15:32:03,494 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-10 15:32:03,494 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-10 15:32:03,494 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-10 15:32:03,494 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-10 15:32:03,494 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-10 15:32:03,494 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-10 15:32:03,494 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-10 15:32:03,494 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-10 15:32:03,495 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-10 15:32:03,495 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-10 15:32:03,495 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-10 15:32:03,495 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-10 15:32:03,495 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-10 15:32:03,495 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-10 15:32:03,495 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-10 15:32:03,495 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-10 15:32:03,495 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-10 15:32:03,495 INFO L128 BoogieDeclarations]: Found specification of procedure aligned_alloc [2018-04-10 15:32:03,495 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-10 15:32:03,495 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-10 15:32:03,495 INFO L128 BoogieDeclarations]: Found specification of procedure at_quick_exit [2018-04-10 15:32:03,496 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-10 15:32:03,496 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-10 15:32:03,496 INFO L128 BoogieDeclarations]: Found specification of procedure quick_exit [2018-04-10 15:32:03,496 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-10 15:32:03,496 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-10 15:32:03,496 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-10 15:32:03,496 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-10 15:32:03,496 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-10 15:32:03,496 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-10 15:32:03,496 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-10 15:32:03,497 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-10 15:32:03,497 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-10 15:32:03,497 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-10 15:32:03,497 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-10 15:32:03,497 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-10 15:32:03,497 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-10 15:32:03,497 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-10 15:32:03,497 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-10 15:32:03,497 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-10 15:32:03,497 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-10 15:32:03,497 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-10 15:32:03,497 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-10 15:32:03,497 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-10 15:32:03,497 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-10 15:32:03,497 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-10 15:32:03,497 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-10 15:32:03,497 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-10 15:32:03,498 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-10 15:32:03,498 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-10 15:32:03,498 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-10 15:32:03,498 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-10 15:32:03,498 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-10 15:32:03,498 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-10 15:32:03,498 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-10 15:32:03,498 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-10 15:32:03,498 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-10 15:32:03,498 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-10 15:32:03,498 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-10 15:32:03,498 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-10 15:32:03,499 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-10 15:32:03,499 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-10 15:32:03,499 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-10 15:32:03,499 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-04-10 15:32:03,499 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-10 15:32:03,499 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-10 15:32:03,499 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-04-10 15:32:03,499 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-10 15:32:03,499 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-04-10 15:32:03,499 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-10 15:32:03,499 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-10 15:32:03,499 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-10 15:32:03,499 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-10 15:32:03,499 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-10 15:32:03,926 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-10 15:32:03,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.04 03:32:03 BoogieIcfgContainer [2018-04-10 15:32:03,926 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-10 15:32:03,927 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-10 15:32:03,927 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-10 15:32:03,930 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-10 15:32:03,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.04 03:32:03" (1/3) ... [2018-04-10 15:32:03,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f26affc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.04 03:32:03, skipping insertion in model container [2018-04-10 15:32:03,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 03:32:03" (2/3) ... [2018-04-10 15:32:03,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f26affc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.04 03:32:03, skipping insertion in model container [2018-04-10 15:32:03,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.04 03:32:03" (3/3) ... [2018-04-10 15:32:03,934 INFO L107 eAbstractionObserver]: Analyzing ICFG sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-10 15:32:03,942 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-04-10 15:32:03,948 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 63 error locations. [2018-04-10 15:32:03,980 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-10 15:32:03,981 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-10 15:32:03,981 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-10 15:32:03,981 INFO L371 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-04-10 15:32:03,981 INFO L372 AbstractCegarLoop]: Backedges is CANONICAL [2018-04-10 15:32:03,981 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-10 15:32:03,981 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-10 15:32:03,981 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-10 15:32:03,981 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-10 15:32:03,982 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-10 15:32:03,992 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states. [2018-04-10 15:32:03,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-04-10 15:32:03,997 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:03,997 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:03,998 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:04,000 INFO L82 PathProgramCache]: Analyzing trace with hash 1599603740, now seen corresponding path program 1 times [2018-04-10 15:32:04,035 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:04,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:04,064 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:04,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:04,105 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 15:32:04,105 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-10 15:32:04,106 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:04,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:04,106 INFO L182 omatonBuilderFactory]: Interpolants [151#true, 152#false, 153#(= 1 (select |#valid| |main_#t~malloc0.base|)), 154#(= 1 (select |#valid| main_~head~0.base))] [2018-04-10 15:32:04,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:04,107 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-10 15:32:04,115 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-10 15:32:04,115 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-10 15:32:04,117 INFO L87 Difference]: Start difference. First operand 148 states. Second operand 4 states. [2018-04-10 15:32:04,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:04,278 INFO L93 Difference]: Finished difference Result 168 states and 180 transitions. [2018-04-10 15:32:04,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-10 15:32:04,279 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-04-10 15:32:04,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:04,287 INFO L225 Difference]: With dead ends: 168 [2018-04-10 15:32:04,287 INFO L226 Difference]: Without dead ends: 164 [2018-04-10 15:32:04,288 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-10 15:32:04,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2018-04-10 15:32:04,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 138. [2018-04-10 15:32:04,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-04-10 15:32:04,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 149 transitions. [2018-04-10 15:32:04,316 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 149 transitions. Word has length 8 [2018-04-10 15:32:04,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:04,316 INFO L459 AbstractCegarLoop]: Abstraction has 138 states and 149 transitions. [2018-04-10 15:32:04,316 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-10 15:32:04,316 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 149 transitions. [2018-04-10 15:32:04,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-04-10 15:32:04,316 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:04,316 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:04,316 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:04,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1599603741, now seen corresponding path program 1 times [2018-04-10 15:32:04,318 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:04,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:04,326 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:04,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:04,374 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 15:32:04,374 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-10 15:32:04,374 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:04,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:04,374 INFO L182 omatonBuilderFactory]: Interpolants [464#false, 465#(and (= 0 |main_#t~malloc0.offset|) (= 12 (select |#length| |main_#t~malloc0.base|))), 466#(and (= 12 (select |#length| main_~head~0.base)) (= main_~head~0.offset 0)), 463#true] [2018-04-10 15:32:04,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:04,375 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-10 15:32:04,376 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-10 15:32:04,376 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-10 15:32:04,376 INFO L87 Difference]: Start difference. First operand 138 states and 149 transitions. Second operand 4 states. [2018-04-10 15:32:04,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:04,525 INFO L93 Difference]: Finished difference Result 135 states and 146 transitions. [2018-04-10 15:32:04,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-10 15:32:04,525 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-04-10 15:32:04,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:04,526 INFO L225 Difference]: With dead ends: 135 [2018-04-10 15:32:04,526 INFO L226 Difference]: Without dead ends: 135 [2018-04-10 15:32:04,526 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-10 15:32:04,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2018-04-10 15:32:04,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 130. [2018-04-10 15:32:04,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2018-04-10 15:32:04,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 141 transitions. [2018-04-10 15:32:04,532 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 141 transitions. Word has length 8 [2018-04-10 15:32:04,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:04,532 INFO L459 AbstractCegarLoop]: Abstraction has 130 states and 141 transitions. [2018-04-10 15:32:04,532 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-10 15:32:04,532 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 141 transitions. [2018-04-10 15:32:04,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-04-10 15:32:04,533 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:04,533 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:04,533 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:04,533 INFO L82 PathProgramCache]: Analyzing trace with hash 723052242, now seen corresponding path program 1 times [2018-04-10 15:32:04,534 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:04,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:04,547 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:04,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:04,580 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 15:32:04,580 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-10 15:32:04,580 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:04,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:04,580 INFO L182 omatonBuilderFactory]: Interpolants [736#(= 1 (select |#valid| |main_#t~malloc2.base|)), 737#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))), 738#(= 1 (select |#valid| |main_#t~mem3.base|)), 734#true, 735#false] [2018-04-10 15:32:04,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:04,580 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-10 15:32:04,580 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-10 15:32:04,581 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-10 15:32:04,581 INFO L87 Difference]: Start difference. First operand 130 states and 141 transitions. Second operand 5 states. [2018-04-10 15:32:04,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:04,869 INFO L93 Difference]: Finished difference Result 279 states and 303 transitions. [2018-04-10 15:32:04,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-10 15:32:04,869 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-04-10 15:32:04,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:04,871 INFO L225 Difference]: With dead ends: 279 [2018-04-10 15:32:04,871 INFO L226 Difference]: Without dead ends: 279 [2018-04-10 15:32:04,871 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-04-10 15:32:04,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2018-04-10 15:32:04,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 129. [2018-04-10 15:32:04,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2018-04-10 15:32:04,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 140 transitions. [2018-04-10 15:32:04,880 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 140 transitions. Word has length 15 [2018-04-10 15:32:04,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:04,880 INFO L459 AbstractCegarLoop]: Abstraction has 129 states and 140 transitions. [2018-04-10 15:32:04,880 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-10 15:32:04,880 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 140 transitions. [2018-04-10 15:32:04,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-04-10 15:32:04,881 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:04,881 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:04,881 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:04,881 INFO L82 PathProgramCache]: Analyzing trace with hash 723052243, now seen corresponding path program 1 times [2018-04-10 15:32:04,883 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:04,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:04,896 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:04,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:04,938 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 15:32:04,939 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-10 15:32:04,939 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:04,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:04,939 INFO L182 omatonBuilderFactory]: Interpolants [1153#true, 1154#false, 1155#(and (= 12 (select |#length| |main_#t~malloc2.base|)) (= 0 |main_#t~malloc2.offset|)), 1156#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4)))), 1157#(and (= |main_#t~mem3.offset| 0) (= 12 (select |#length| |main_#t~mem3.base|)))] [2018-04-10 15:32:04,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:04,939 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-10 15:32:04,940 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-10 15:32:04,940 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-10 15:32:04,940 INFO L87 Difference]: Start difference. First operand 129 states and 140 transitions. Second operand 5 states. [2018-04-10 15:32:05,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:05,167 INFO L93 Difference]: Finished difference Result 235 states and 255 transitions. [2018-04-10 15:32:05,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-10 15:32:05,167 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-04-10 15:32:05,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:05,168 INFO L225 Difference]: With dead ends: 235 [2018-04-10 15:32:05,168 INFO L226 Difference]: Without dead ends: 235 [2018-04-10 15:32:05,168 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-04-10 15:32:05,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2018-04-10 15:32:05,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 128. [2018-04-10 15:32:05,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2018-04-10 15:32:05,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 139 transitions. [2018-04-10 15:32:05,175 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 139 transitions. Word has length 15 [2018-04-10 15:32:05,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:05,175 INFO L459 AbstractCegarLoop]: Abstraction has 128 states and 139 transitions. [2018-04-10 15:32:05,175 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-10 15:32:05,175 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 139 transitions. [2018-04-10 15:32:05,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-04-10 15:32:05,176 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:05,176 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:05,176 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:05,176 INFO L82 PathProgramCache]: Analyzing trace with hash 863312645, now seen corresponding path program 1 times [2018-04-10 15:32:05,177 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:05,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:05,189 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:05,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:05,231 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 15:32:05,231 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-10 15:32:05,232 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:05,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:05,232 INFO L182 omatonBuilderFactory]: Interpolants [1527#true, 1528#false, 1529#(= 1 (select |#valid| main_~head~0.base)), 1530#(= 1 (select |#valid| main_~x~0.base))] [2018-04-10 15:32:05,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:05,232 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-10 15:32:05,232 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-10 15:32:05,233 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-10 15:32:05,233 INFO L87 Difference]: Start difference. First operand 128 states and 139 transitions. Second operand 4 states. [2018-04-10 15:32:05,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:05,314 INFO L93 Difference]: Finished difference Result 133 states and 144 transitions. [2018-04-10 15:32:05,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-10 15:32:05,314 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2018-04-10 15:32:05,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:05,315 INFO L225 Difference]: With dead ends: 133 [2018-04-10 15:32:05,315 INFO L226 Difference]: Without dead ends: 133 [2018-04-10 15:32:05,315 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-10 15:32:05,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2018-04-10 15:32:05,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 124. [2018-04-10 15:32:05,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-04-10 15:32:05,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 140 transitions. [2018-04-10 15:32:05,321 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 140 transitions. Word has length 19 [2018-04-10 15:32:05,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:05,321 INFO L459 AbstractCegarLoop]: Abstraction has 124 states and 140 transitions. [2018-04-10 15:32:05,321 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-10 15:32:05,321 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 140 transitions. [2018-04-10 15:32:05,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-04-10 15:32:05,322 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:05,322 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:05,322 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:05,322 INFO L82 PathProgramCache]: Analyzing trace with hash 863312646, now seen corresponding path program 1 times [2018-04-10 15:32:05,323 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:05,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:05,334 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:05,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:05,425 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 15:32:05,425 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-10 15:32:05,425 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:05,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:05,425 INFO L182 omatonBuilderFactory]: Interpolants [1792#(and (= 0 |main_#t~malloc0.offset|) (= 12 (select |#length| |main_#t~malloc0.base|))), 1793#(and (= 0 main_~head~0.offset) (= 12 (select |#length| main_~head~0.base))), 1794#(and (= 0 main_~head~0.offset) (= 12 (select |#length| main_~head~0.base)) (= 1 (select |#valid| main_~head~0.base))), 1795#(and (= 12 (select |#length| main_~x~0.base)) (= main_~x~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 1796#(and (= 12 (select |#length| main_~x~0.base)) (= main_~x~0.offset 0)), 1790#true, 1791#false] [2018-04-10 15:32:05,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:05,426 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-10 15:32:05,426 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-10 15:32:05,426 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-04-10 15:32:05,426 INFO L87 Difference]: Start difference. First operand 124 states and 140 transitions. Second operand 7 states. [2018-04-10 15:32:05,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:05,610 INFO L93 Difference]: Finished difference Result 175 states and 192 transitions. [2018-04-10 15:32:05,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-10 15:32:05,610 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-04-10 15:32:05,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:05,611 INFO L225 Difference]: With dead ends: 175 [2018-04-10 15:32:05,611 INFO L226 Difference]: Without dead ends: 175 [2018-04-10 15:32:05,611 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-04-10 15:32:05,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2018-04-10 15:32:05,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 154. [2018-04-10 15:32:05,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2018-04-10 15:32:05,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 176 transitions. [2018-04-10 15:32:05,615 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 176 transitions. Word has length 19 [2018-04-10 15:32:05,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:05,616 INFO L459 AbstractCegarLoop]: Abstraction has 154 states and 176 transitions. [2018-04-10 15:32:05,616 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-10 15:32:05,616 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 176 transitions. [2018-04-10 15:32:05,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-04-10 15:32:05,616 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:05,617 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:05,617 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:05,617 INFO L82 PathProgramCache]: Analyzing trace with hash 682869627, now seen corresponding path program 1 times [2018-04-10 15:32:05,618 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:05,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:05,627 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:05,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:05,654 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 15:32:05,654 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-10 15:32:05,655 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:05,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:05,655 INFO L182 omatonBuilderFactory]: Interpolants [2132#true, 2133#false, 2134#(= 1 (select |#valid| |main_#t~malloc6.base|)), 2135#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 2136#(= 1 (select |#valid| |main_#t~mem7.base|)), 2137#(= 1 (select |#valid| main_~x~0.base))] [2018-04-10 15:32:05,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:05,655 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-10 15:32:05,656 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-10 15:32:05,656 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-10 15:32:05,656 INFO L87 Difference]: Start difference. First operand 154 states and 176 transitions. Second operand 6 states. [2018-04-10 15:32:05,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:05,845 INFO L93 Difference]: Finished difference Result 222 states and 255 transitions. [2018-04-10 15:32:05,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-10 15:32:05,846 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2018-04-10 15:32:05,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:05,847 INFO L225 Difference]: With dead ends: 222 [2018-04-10 15:32:05,847 INFO L226 Difference]: Without dead ends: 222 [2018-04-10 15:32:05,847 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-04-10 15:32:05,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2018-04-10 15:32:05,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 153. [2018-04-10 15:32:05,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2018-04-10 15:32:05,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 175 transitions. [2018-04-10 15:32:05,852 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 175 transitions. Word has length 22 [2018-04-10 15:32:05,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:05,852 INFO L459 AbstractCegarLoop]: Abstraction has 153 states and 175 transitions. [2018-04-10 15:32:05,852 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-10 15:32:05,852 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 175 transitions. [2018-04-10 15:32:05,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-04-10 15:32:05,853 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:05,853 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:05,853 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:05,853 INFO L82 PathProgramCache]: Analyzing trace with hash 682869628, now seen corresponding path program 1 times [2018-04-10 15:32:05,854 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:05,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:05,863 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:05,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:05,920 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 15:32:05,920 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-10 15:32:05,920 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:05,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:05,921 INFO L182 omatonBuilderFactory]: Interpolants [2520#true, 2521#false, 2522#(and (= 0 |main_#t~malloc6.offset|) (= 12 (select |#length| |main_#t~malloc6.base|))), 2523#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 2524#(and (= 12 (select |#length| |main_#t~mem7.base|)) (= 0 |main_#t~mem7.offset|)), 2525#(and (= 12 (select |#length| main_~x~0.base)) (= main_~x~0.offset 0))] [2018-04-10 15:32:05,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:05,921 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-10 15:32:05,921 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-10 15:32:05,921 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-10 15:32:05,921 INFO L87 Difference]: Start difference. First operand 153 states and 175 transitions. Second operand 6 states. [2018-04-10 15:32:06,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:06,190 INFO L93 Difference]: Finished difference Result 236 states and 274 transitions. [2018-04-10 15:32:06,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-10 15:32:06,190 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2018-04-10 15:32:06,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:06,191 INFO L225 Difference]: With dead ends: 236 [2018-04-10 15:32:06,191 INFO L226 Difference]: Without dead ends: 236 [2018-04-10 15:32:06,192 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-04-10 15:32:06,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2018-04-10 15:32:06,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 137. [2018-04-10 15:32:06,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2018-04-10 15:32:06,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 158 transitions. [2018-04-10 15:32:06,195 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 158 transitions. Word has length 22 [2018-04-10 15:32:06,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:06,195 INFO L459 AbstractCegarLoop]: Abstraction has 137 states and 158 transitions. [2018-04-10 15:32:06,195 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-10 15:32:06,196 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 158 transitions. [2018-04-10 15:32:06,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-04-10 15:32:06,196 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:06,196 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:06,196 INFO L408 AbstractCegarLoop]: === Iteration 9 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:06,196 INFO L82 PathProgramCache]: Analyzing trace with hash 1146686030, now seen corresponding path program 1 times [2018-04-10 15:32:06,197 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:06,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:06,203 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:06,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:06,225 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 15:32:06,225 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-10 15:32:06,225 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:06,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:06,226 INFO L182 omatonBuilderFactory]: Interpolants [2912#(not (= 0 |main_#t~malloc0.base|)), 2913#(not (= 0 main_~head~0.base)), 2914#(not (= 0 main_~x~0.base)), 2910#true, 2911#false] [2018-04-10 15:32:06,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:06,226 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-10 15:32:06,226 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-10 15:32:06,226 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-10 15:32:06,226 INFO L87 Difference]: Start difference. First operand 137 states and 158 transitions. Second operand 5 states. [2018-04-10 15:32:06,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:06,310 INFO L93 Difference]: Finished difference Result 158 states and 175 transitions. [2018-04-10 15:32:06,310 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-10 15:32:06,311 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2018-04-10 15:32:06,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:06,311 INFO L225 Difference]: With dead ends: 158 [2018-04-10 15:32:06,312 INFO L226 Difference]: Without dead ends: 158 [2018-04-10 15:32:06,312 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-04-10 15:32:06,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2018-04-10 15:32:06,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 137. [2018-04-10 15:32:06,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2018-04-10 15:32:06,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 156 transitions. [2018-04-10 15:32:06,316 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 156 transitions. Word has length 25 [2018-04-10 15:32:06,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:06,316 INFO L459 AbstractCegarLoop]: Abstraction has 137 states and 156 transitions. [2018-04-10 15:32:06,316 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-10 15:32:06,316 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 156 transitions. [2018-04-10 15:32:06,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-04-10 15:32:06,317 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:06,317 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:06,317 INFO L408 AbstractCegarLoop]: === Iteration 10 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:06,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1880164707, now seen corresponding path program 1 times [2018-04-10 15:32:06,318 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:06,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:06,335 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:06,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:06,349 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 15:32:06,349 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-10 15:32:06,350 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:06,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:06,350 INFO L182 omatonBuilderFactory]: Interpolants [3216#(not |main_#t~short14|), 3217#(not |main_#t~short17|), 3214#true, 3215#false] [2018-04-10 15:32:06,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:06,350 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-10 15:32:06,351 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-10 15:32:06,351 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-10 15:32:06,351 INFO L87 Difference]: Start difference. First operand 137 states and 156 transitions. Second operand 4 states. [2018-04-10 15:32:06,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:06,368 INFO L93 Difference]: Finished difference Result 163 states and 186 transitions. [2018-04-10 15:32:06,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-10 15:32:06,369 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2018-04-10 15:32:06,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:06,370 INFO L225 Difference]: With dead ends: 163 [2018-04-10 15:32:06,370 INFO L226 Difference]: Without dead ends: 163 [2018-04-10 15:32:06,370 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-10 15:32:06,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2018-04-10 15:32:06,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 141. [2018-04-10 15:32:06,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2018-04-10 15:32:06,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 160 transitions. [2018-04-10 15:32:06,373 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 160 transitions. Word has length 28 [2018-04-10 15:32:06,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:06,374 INFO L459 AbstractCegarLoop]: Abstraction has 141 states and 160 transitions. [2018-04-10 15:32:06,374 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-10 15:32:06,374 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 160 transitions. [2018-04-10 15:32:06,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-04-10 15:32:06,375 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:06,375 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] [2018-04-10 15:32:06,375 INFO L408 AbstractCegarLoop]: === Iteration 11 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:06,375 INFO L82 PathProgramCache]: Analyzing trace with hash -925635600, now seen corresponding path program 1 times [2018-04-10 15:32:06,376 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:06,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:06,390 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:06,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:06,420 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 15:32:06,420 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-10 15:32:06,420 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:06,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:06,421 INFO L182 omatonBuilderFactory]: Interpolants [3524#true, 3525#false, 3526#(= 1 (select |#valid| |main_#t~malloc9.base|)), 3527#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))), 3528#(= 1 (select |#valid| |main_#t~mem10.base|))] [2018-04-10 15:32:06,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:06,421 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-10 15:32:06,421 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-10 15:32:06,421 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-10 15:32:06,422 INFO L87 Difference]: Start difference. First operand 141 states and 160 transitions. Second operand 5 states. [2018-04-10 15:32:06,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:06,639 INFO L93 Difference]: Finished difference Result 243 states and 277 transitions. [2018-04-10 15:32:06,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-10 15:32:06,639 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2018-04-10 15:32:06,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:06,640 INFO L225 Difference]: With dead ends: 243 [2018-04-10 15:32:06,640 INFO L226 Difference]: Without dead ends: 243 [2018-04-10 15:32:06,641 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-04-10 15:32:06,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2018-04-10 15:32:06,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 140. [2018-04-10 15:32:06,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2018-04-10 15:32:06,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 159 transitions. [2018-04-10 15:32:06,645 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 159 transitions. Word has length 29 [2018-04-10 15:32:06,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:06,645 INFO L459 AbstractCegarLoop]: Abstraction has 140 states and 159 transitions. [2018-04-10 15:32:06,645 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-10 15:32:06,645 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 159 transitions. [2018-04-10 15:32:06,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-04-10 15:32:06,646 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:06,646 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] [2018-04-10 15:32:06,646 INFO L408 AbstractCegarLoop]: === Iteration 12 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:06,646 INFO L82 PathProgramCache]: Analyzing trace with hash -925635599, now seen corresponding path program 1 times [2018-04-10 15:32:06,647 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:06,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:06,658 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:06,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:06,695 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 15:32:06,695 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-10 15:32:06,695 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:06,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:06,696 INFO L182 omatonBuilderFactory]: Interpolants [3920#false, 3921#(and (= 0 |main_#t~malloc9.offset|) (= 12 (select |#length| |main_#t~malloc9.base|))), 3922#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4)))), 3923#(and (= |main_#t~mem10.offset| 0) (= 12 (select |#length| |main_#t~mem10.base|))), 3919#true] [2018-04-10 15:32:06,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:06,696 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-10 15:32:06,696 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-10 15:32:06,696 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-10 15:32:06,697 INFO L87 Difference]: Start difference. First operand 140 states and 159 transitions. Second operand 5 states. [2018-04-10 15:32:06,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:06,884 INFO L93 Difference]: Finished difference Result 252 states and 288 transitions. [2018-04-10 15:32:06,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-10 15:32:06,884 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2018-04-10 15:32:06,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:06,885 INFO L225 Difference]: With dead ends: 252 [2018-04-10 15:32:06,885 INFO L226 Difference]: Without dead ends: 252 [2018-04-10 15:32:06,886 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-04-10 15:32:06,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2018-04-10 15:32:06,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 139. [2018-04-10 15:32:06,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2018-04-10 15:32:06,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 158 transitions. [2018-04-10 15:32:06,889 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 158 transitions. Word has length 29 [2018-04-10 15:32:06,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:06,889 INFO L459 AbstractCegarLoop]: Abstraction has 139 states and 158 transitions. [2018-04-10 15:32:06,889 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-10 15:32:06,889 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 158 transitions. [2018-04-10 15:32:06,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-04-10 15:32:06,890 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:06,890 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] [2018-04-10 15:32:06,890 INFO L408 AbstractCegarLoop]: === Iteration 13 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:06,890 INFO L82 PathProgramCache]: Analyzing trace with hash 1714976192, now seen corresponding path program 1 times [2018-04-10 15:32:06,891 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:06,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:06,900 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:07,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:07,041 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 15:32:07,042 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-04-10 15:32:07,042 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:07,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:07,042 INFO L182 omatonBuilderFactory]: Interpolants [4321#true, 4322#false, 4323#(= 0 |main_#t~malloc0.offset|), 4324#(= main_~head~0.offset 0), 4325#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 4326#(and (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))) (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 4327#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))) (= 0 main_~x~0.offset)), 4328#(and (= |main_#t~mem13.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))) (= 1 (select |#valid| main_~x~0.base)) (= |main_#t~mem13.base| main_~x~0.base) (= main_~x~0.offset 0)), 4329#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~x~0.offset 0)), 4330#(= 1 (select |#valid| |main_#t~mem15.base|))] [2018-04-10 15:32:07,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:07,043 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-10 15:32:07,043 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-10 15:32:07,043 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-04-10 15:32:07,043 INFO L87 Difference]: Start difference. First operand 139 states and 158 transitions. Second operand 10 states. [2018-04-10 15:32:07,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:07,290 INFO L93 Difference]: Finished difference Result 249 states and 282 transitions. [2018-04-10 15:32:07,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-10 15:32:07,291 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 30 [2018-04-10 15:32:07,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:07,292 INFO L225 Difference]: With dead ends: 249 [2018-04-10 15:32:07,292 INFO L226 Difference]: Without dead ends: 249 [2018-04-10 15:32:07,292 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2018-04-10 15:32:07,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2018-04-10 15:32:07,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 156. [2018-04-10 15:32:07,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2018-04-10 15:32:07,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 179 transitions. [2018-04-10 15:32:07,296 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 179 transitions. Word has length 30 [2018-04-10 15:32:07,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:07,296 INFO L459 AbstractCegarLoop]: Abstraction has 156 states and 179 transitions. [2018-04-10 15:32:07,296 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-10 15:32:07,296 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 179 transitions. [2018-04-10 15:32:07,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-04-10 15:32:07,297 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:07,297 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] [2018-04-10 15:32:07,297 INFO L408 AbstractCegarLoop]: === Iteration 14 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:07,297 INFO L82 PathProgramCache]: Analyzing trace with hash 1714976193, now seen corresponding path program 1 times [2018-04-10 15:32:07,299 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:07,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:07,307 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:07,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:07,438 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 15:32:07,438 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-04-10 15:32:07,438 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:07,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:07,439 INFO L182 omatonBuilderFactory]: Interpolants [4752#true, 4753#false, 4754#(= 0 |main_#t~malloc0.offset|), 4755#(= main_~head~0.offset 0), 4756#(and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))) (= main_~head~0.offset 0)), 4757#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))) (= 0 main_~x~0.offset)), 4758#(and (= |main_#t~mem13.offset| main_~x~0.offset) (= |main_#t~mem13.base| main_~x~0.base) (= main_~x~0.offset 0)), 4759#(and (= main_~x~0.offset 0) (not |main_#t~short14|)), 4760#(and (not |main_#t~short17|) (= main_~x~0.offset 0))] [2018-04-10 15:32:07,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:07,439 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-10 15:32:07,439 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-10 15:32:07,440 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-04-10 15:32:07,440 INFO L87 Difference]: Start difference. First operand 156 states and 179 transitions. Second operand 9 states. [2018-04-10 15:32:07,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:07,775 INFO L93 Difference]: Finished difference Result 230 states and 258 transitions. [2018-04-10 15:32:07,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-10 15:32:07,776 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2018-04-10 15:32:07,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:07,777 INFO L225 Difference]: With dead ends: 230 [2018-04-10 15:32:07,777 INFO L226 Difference]: Without dead ends: 230 [2018-04-10 15:32:07,777 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2018-04-10 15:32:07,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2018-04-10 15:32:07,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 152. [2018-04-10 15:32:07,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-04-10 15:32:07,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 173 transitions. [2018-04-10 15:32:07,780 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 173 transitions. Word has length 30 [2018-04-10 15:32:07,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:07,780 INFO L459 AbstractCegarLoop]: Abstraction has 152 states and 173 transitions. [2018-04-10 15:32:07,780 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-10 15:32:07,781 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 173 transitions. [2018-04-10 15:32:07,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-04-10 15:32:07,781 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:07,781 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] [2018-04-10 15:32:07,781 INFO L408 AbstractCegarLoop]: === Iteration 15 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:07,782 INFO L82 PathProgramCache]: Analyzing trace with hash -1951010669, now seen corresponding path program 1 times [2018-04-10 15:32:07,783 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:07,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:07,796 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:07,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:07,931 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 15:32:07,931 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-04-10 15:32:07,931 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:07,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:07,932 INFO L182 omatonBuilderFactory]: Interpolants [5168#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= 0 main_~x~0.offset)), 5169#(= 1 (select |#valid| |main_#t~mem15.base|)), 5159#true, 5160#false, 5161#(= 0 |main_#t~malloc0.offset|), 5162#(= main_~head~0.offset 0), 5163#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 5164#(and (= 1 (select |#valid| |main_#t~malloc2.base|)) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~malloc2.base|))), 5165#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= main_~head~0.offset 0)), 5166#(and (not (= main_~head~0.base |main_#t~mem3.base|)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= main_~head~0.offset 0)), 5167#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= main_~head~0.offset 0))] [2018-04-10 15:32:07,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:07,932 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-04-10 15:32:07,932 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-04-10 15:32:07,932 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2018-04-10 15:32:07,932 INFO L87 Difference]: Start difference. First operand 152 states and 173 transitions. Second operand 11 states. [2018-04-10 15:32:08,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:08,374 INFO L93 Difference]: Finished difference Result 400 states and 454 transitions. [2018-04-10 15:32:08,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-10 15:32:08,374 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 33 [2018-04-10 15:32:08,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:08,375 INFO L225 Difference]: With dead ends: 400 [2018-04-10 15:32:08,375 INFO L226 Difference]: Without dead ends: 400 [2018-04-10 15:32:08,375 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=196, Invalid=454, Unknown=0, NotChecked=0, Total=650 [2018-04-10 15:32:08,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2018-04-10 15:32:08,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 168. [2018-04-10 15:32:08,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2018-04-10 15:32:08,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 193 transitions. [2018-04-10 15:32:08,380 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 193 transitions. Word has length 33 [2018-04-10 15:32:08,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:08,380 INFO L459 AbstractCegarLoop]: Abstraction has 168 states and 193 transitions. [2018-04-10 15:32:08,380 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-04-10 15:32:08,380 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 193 transitions. [2018-04-10 15:32:08,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-04-10 15:32:08,381 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:08,381 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] [2018-04-10 15:32:08,381 INFO L408 AbstractCegarLoop]: === Iteration 16 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:08,381 INFO L82 PathProgramCache]: Analyzing trace with hash -1951010668, now seen corresponding path program 1 times [2018-04-10 15:32:08,382 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:08,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:08,392 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:08,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:08,488 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 15:32:08,488 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-04-10 15:32:08,489 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:08,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:08,489 INFO L182 omatonBuilderFactory]: Interpolants [5776#(and (= 12 (select |#length| |main_#t~mem15.base|)) (= |main_#t~mem15.offset| 0)), 5768#true, 5769#false, 5770#(= 1 (select |#valid| main_~head~0.base)), 5771#(and (= 12 (select |#length| |main_#t~malloc2.base|)) (= 0 |main_#t~malloc2.offset|) (not (= main_~head~0.base |main_#t~malloc2.base|))), 5772#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4)))), 5773#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (not (= main_~head~0.base |main_#t~mem3.base|))), 5774#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4)))), 5775#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4))))] [2018-04-10 15:32:08,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:08,489 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-10 15:32:08,489 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-10 15:32:08,489 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-04-10 15:32:08,489 INFO L87 Difference]: Start difference. First operand 168 states and 193 transitions. Second operand 9 states. [2018-04-10 15:32:08,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:08,975 INFO L93 Difference]: Finished difference Result 325 states and 367 transitions. [2018-04-10 15:32:08,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-10 15:32:08,975 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 33 [2018-04-10 15:32:08,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:08,976 INFO L225 Difference]: With dead ends: 325 [2018-04-10 15:32:08,976 INFO L226 Difference]: Without dead ends: 325 [2018-04-10 15:32:08,976 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2018-04-10 15:32:08,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2018-04-10 15:32:08,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 168. [2018-04-10 15:32:08,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2018-04-10 15:32:08,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 192 transitions. [2018-04-10 15:32:08,979 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 192 transitions. Word has length 33 [2018-04-10 15:32:08,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:08,979 INFO L459 AbstractCegarLoop]: Abstraction has 168 states and 192 transitions. [2018-04-10 15:32:08,980 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-10 15:32:08,980 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 192 transitions. [2018-04-10 15:32:08,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-04-10 15:32:08,980 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:08,980 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:08,980 INFO L408 AbstractCegarLoop]: === Iteration 17 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:08,981 INFO L82 PathProgramCache]: Analyzing trace with hash -594222086, now seen corresponding path program 1 times [2018-04-10 15:32:08,981 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:08,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:08,988 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:09,014 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:09,014 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 15:32:09,014 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-10 15:32:09,014 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:09,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:09,015 INFO L182 omatonBuilderFactory]: Interpolants [6288#(not |main_#t~short17|), 6289#(not |main_#t~short19|), 6286#true, 6287#false] [2018-04-10 15:32:09,015 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:09,015 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-10 15:32:09,015 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-10 15:32:09,015 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-10 15:32:09,015 INFO L87 Difference]: Start difference. First operand 168 states and 192 transitions. Second operand 4 states. [2018-04-10 15:32:09,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:09,038 INFO L93 Difference]: Finished difference Result 179 states and 203 transitions. [2018-04-10 15:32:09,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-10 15:32:09,038 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2018-04-10 15:32:09,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:09,039 INFO L225 Difference]: With dead ends: 179 [2018-04-10 15:32:09,039 INFO L226 Difference]: Without dead ends: 179 [2018-04-10 15:32:09,039 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-10 15:32:09,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2018-04-10 15:32:09,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 172. [2018-04-10 15:32:09,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2018-04-10 15:32:09,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 196 transitions. [2018-04-10 15:32:09,042 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 196 transitions. Word has length 36 [2018-04-10 15:32:09,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:09,042 INFO L459 AbstractCegarLoop]: Abstraction has 172 states and 196 transitions. [2018-04-10 15:32:09,043 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-10 15:32:09,043 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 196 transitions. [2018-04-10 15:32:09,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-04-10 15:32:09,043 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:09,043 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:09,043 INFO L408 AbstractCegarLoop]: === Iteration 18 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:09,043 INFO L82 PathProgramCache]: Analyzing trace with hash 1495087999, now seen corresponding path program 1 times [2018-04-10 15:32:09,044 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:09,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:09,050 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:09,114 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:09,114 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:32:09,114 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-04-10 15:32:09,115 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:09,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:09,115 INFO L182 omatonBuilderFactory]: Interpolants [6643#true, 6644#false, 6645#(and (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 6646#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 6647#(and (= 0 |main_#t~mem20.offset|) (= 0 |main_#t~mem20.base|)), 6648#(and (= 0 main_~x~0.base) (= 0 main_~x~0.offset))] [2018-04-10 15:32:09,115 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:09,115 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-10 15:32:09,115 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-10 15:32:09,116 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-10 15:32:09,116 INFO L87 Difference]: Start difference. First operand 172 states and 196 transitions. Second operand 6 states. [2018-04-10 15:32:09,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:09,285 INFO L93 Difference]: Finished difference Result 214 states and 240 transitions. [2018-04-10 15:32:09,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-10 15:32:09,285 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2018-04-10 15:32:09,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:09,286 INFO L225 Difference]: With dead ends: 214 [2018-04-10 15:32:09,286 INFO L226 Difference]: Without dead ends: 214 [2018-04-10 15:32:09,287 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-04-10 15:32:09,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2018-04-10 15:32:09,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 187. [2018-04-10 15:32:09,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2018-04-10 15:32:09,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 212 transitions. [2018-04-10 15:32:09,290 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 212 transitions. Word has length 38 [2018-04-10 15:32:09,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:09,290 INFO L459 AbstractCegarLoop]: Abstraction has 187 states and 212 transitions. [2018-04-10 15:32:09,290 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-10 15:32:09,290 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 212 transitions. [2018-04-10 15:32:09,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-04-10 15:32:09,290 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:09,291 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:09,291 INFO L408 AbstractCegarLoop]: === Iteration 19 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:09,291 INFO L82 PathProgramCache]: Analyzing trace with hash -1591086459, now seen corresponding path program 1 times [2018-04-10 15:32:09,292 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:09,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:09,301 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:09,394 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:09,394 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:32:09,394 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-04-10 15:32:09,394 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:09,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:09,395 INFO L182 omatonBuilderFactory]: Interpolants [7056#true, 7057#false, 7058#(= 1 (select |#valid| main_~head~0.base)), 7059#(and (= (select |#valid| main_~head~0.base) 1) (= 0 (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)))), 7060#(and (not (= main_~head~0.base |main_#t~malloc6.base|)) (= 0 (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)))), 7061#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)))), 7062#(and (= 0 (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8))) (not (= main_~head~0.base |main_#t~mem7.base|))), 7063#(and (not (= main_~head~0.base main_~x~0.base)) (= 0 (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)))), 7064#(= 0 (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8))), 7065#(= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))), 7066#(= 0 |main_#t~mem12|), 7067#(not |main_#t~short14|)] [2018-04-10 15:32:09,395 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:09,395 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-10 15:32:09,395 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-10 15:32:09,395 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2018-04-10 15:32:09,395 INFO L87 Difference]: Start difference. First operand 187 states and 212 transitions. Second operand 12 states. [2018-04-10 15:32:10,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:10,059 INFO L93 Difference]: Finished difference Result 356 states and 391 transitions. [2018-04-10 15:32:10,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-04-10 15:32:10,059 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 43 [2018-04-10 15:32:10,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:10,060 INFO L225 Difference]: With dead ends: 356 [2018-04-10 15:32:10,060 INFO L226 Difference]: Without dead ends: 356 [2018-04-10 15:32:10,060 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=241, Invalid=689, Unknown=0, NotChecked=0, Total=930 [2018-04-10 15:32:10,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-04-10 15:32:10,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 226. [2018-04-10 15:32:10,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2018-04-10 15:32:10,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 255 transitions. [2018-04-10 15:32:10,063 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 255 transitions. Word has length 43 [2018-04-10 15:32:10,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:10,063 INFO L459 AbstractCegarLoop]: Abstraction has 226 states and 255 transitions. [2018-04-10 15:32:10,063 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-10 15:32:10,063 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 255 transitions. [2018-04-10 15:32:10,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-04-10 15:32:10,064 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:10,064 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:10,064 INFO L408 AbstractCegarLoop]: === Iteration 20 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:10,064 INFO L82 PathProgramCache]: Analyzing trace with hash -912010883, now seen corresponding path program 1 times [2018-04-10 15:32:10,065 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:10,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:10,072 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:10,146 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:10,146 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:32:10,146 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-04-10 15:32:10,146 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:10,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:10,147 INFO L182 omatonBuilderFactory]: Interpolants [7696#(= 1 (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8))), 7697#(= 1 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))), 7698#(= 1 |main_#t~mem12|), 7699#(not |main_#t~short14|), 7688#true, 7689#false, 7690#(= 1 (select |#valid| main_~head~0.base)), 7691#(and (= (select |#valid| main_~head~0.base) 1) (= 1 (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)))), 7692#(and (not (= main_~head~0.base |main_#t~malloc6.base|)) (= 1 (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)))), 7693#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 1 (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)))), 7694#(and (= 1 (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8))) (not (= main_~head~0.base |main_#t~mem7.base|))), 7695#(and (not (= main_~head~0.base main_~x~0.base)) (= 1 (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8))))] [2018-04-10 15:32:10,147 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:10,147 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-10 15:32:10,147 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-10 15:32:10,147 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2018-04-10 15:32:10,147 INFO L87 Difference]: Start difference. First operand 226 states and 255 transitions. Second operand 12 states. [2018-04-10 15:32:10,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:10,817 INFO L93 Difference]: Finished difference Result 388 states and 426 transitions. [2018-04-10 15:32:10,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-04-10 15:32:10,817 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 43 [2018-04-10 15:32:10,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:10,818 INFO L225 Difference]: With dead ends: 388 [2018-04-10 15:32:10,818 INFO L226 Difference]: Without dead ends: 388 [2018-04-10 15:32:10,818 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=241, Invalid=689, Unknown=0, NotChecked=0, Total=930 [2018-04-10 15:32:10,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2018-04-10 15:32:10,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 213. [2018-04-10 15:32:10,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2018-04-10 15:32:10,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 240 transitions. [2018-04-10 15:32:10,821 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 240 transitions. Word has length 43 [2018-04-10 15:32:10,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:10,821 INFO L459 AbstractCegarLoop]: Abstraction has 213 states and 240 transitions. [2018-04-10 15:32:10,821 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-10 15:32:10,821 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 240 transitions. [2018-04-10 15:32:10,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-04-10 15:32:10,821 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:10,821 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:10,821 INFO L408 AbstractCegarLoop]: === Iteration 21 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:10,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1962075886, now seen corresponding path program 1 times [2018-04-10 15:32:10,822 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:10,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:10,829 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:10,912 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-10 15:32:10,912 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 15:32:10,912 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-04-10 15:32:10,912 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:10,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:10,913 INFO L182 omatonBuilderFactory]: Interpolants [8339#true, 8340#false, 8341#(= 0 |main_#t~malloc0.offset|), 8342#(= main_~head~0.offset 0), 8343#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (= main_~head~0.offset 0)), 8344#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ 0 4))) (= 0 main_~x~0.offset)), 8345#(= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))), 8346#(= 0 |main_#t~mem23.offset|)] [2018-04-10 15:32:10,913 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-10 15:32:10,913 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-10 15:32:10,913 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-10 15:32:10,914 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-04-10 15:32:10,914 INFO L87 Difference]: Start difference. First operand 213 states and 240 transitions. Second operand 8 states. [2018-04-10 15:32:11,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:11,121 INFO L93 Difference]: Finished difference Result 319 states and 354 transitions. [2018-04-10 15:32:11,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-10 15:32:11,121 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 45 [2018-04-10 15:32:11,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:11,122 INFO L225 Difference]: With dead ends: 319 [2018-04-10 15:32:11,122 INFO L226 Difference]: Without dead ends: 319 [2018-04-10 15:32:11,122 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-04-10 15:32:11,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2018-04-10 15:32:11,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 290. [2018-04-10 15:32:11,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2018-04-10 15:32:11,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 333 transitions. [2018-04-10 15:32:11,128 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 333 transitions. Word has length 45 [2018-04-10 15:32:11,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:11,128 INFO L459 AbstractCegarLoop]: Abstraction has 290 states and 333 transitions. [2018-04-10 15:32:11,128 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-10 15:32:11,128 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 333 transitions. [2018-04-10 15:32:11,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-04-10 15:32:11,129 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:11,129 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:11,129 INFO L408 AbstractCegarLoop]: === Iteration 22 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:11,129 INFO L82 PathProgramCache]: Analyzing trace with hash -357570926, now seen corresponding path program 1 times [2018-04-10 15:32:11,130 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:11,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:11,145 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:11,511 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:11,511 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:32:11,511 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-04-10 15:32:11,511 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:11,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:11,511 INFO L182 omatonBuilderFactory]: Interpolants [8966#true, 8967#false, 8968#(= 0 |main_#t~malloc0.offset|), 8969#(= main_~head~0.offset 0), 8970#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 8971#(and (= 1 (select |#valid| |main_#t~malloc2.base|)) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~malloc2.base|))), 8972#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 8973#(and (not (= main_~head~0.base |main_#t~mem3.base|)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 8974#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 8975#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (not (= main_~x~0.offset (+ main_~head~0.offset 4))) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 8976#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (not (= main_~x~0.offset (+ main_~head~0.offset 4))) (= main_~x~0.base main_~head~0.base) (or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= |main_#t~malloc6.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))))), 8977#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.offset (+ main_~head~0.offset 4))) (= main_~x~0.base main_~head~0.base) (or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~head~0.offset 4)))) (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~head~0.offset 4))))), 8978#(and (or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (not (= main_~head~0.base |main_#t~mem7.base|))), 8979#(and (not (= main_~x~0.base main_~head~0.base)) (or (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))))), 8980#(and (= 1 (select |#valid| main_~x~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (not (= main_~x~0.base main_~head~0.base))), 8981#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (not (= main_~x~0.base main_~head~0.base))), 8982#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))), 8983#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))), 8984#(= 1 (select |#valid| |main_#t~mem15.base|))] [2018-04-10 15:32:11,511 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:11,511 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-04-10 15:32:11,512 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-04-10 15:32:11,512 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2018-04-10 15:32:11,512 INFO L87 Difference]: Start difference. First operand 290 states and 333 transitions. Second operand 19 states. [2018-04-10 15:32:12,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:12,617 INFO L93 Difference]: Finished difference Result 496 states and 548 transitions. [2018-04-10 15:32:12,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-04-10 15:32:12,617 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 46 [2018-04-10 15:32:12,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:12,618 INFO L225 Difference]: With dead ends: 496 [2018-04-10 15:32:12,618 INFO L226 Difference]: Without dead ends: 496 [2018-04-10 15:32:12,619 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 499 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=532, Invalid=1820, Unknown=0, NotChecked=0, Total=2352 [2018-04-10 15:32:12,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2018-04-10 15:32:12,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 318. [2018-04-10 15:32:12,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2018-04-10 15:32:12,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 367 transitions. [2018-04-10 15:32:12,624 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 367 transitions. Word has length 46 [2018-04-10 15:32:12,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:12,624 INFO L459 AbstractCegarLoop]: Abstraction has 318 states and 367 transitions. [2018-04-10 15:32:12,624 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-04-10 15:32:12,624 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 367 transitions. [2018-04-10 15:32:12,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-04-10 15:32:12,625 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:12,625 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:12,625 INFO L408 AbstractCegarLoop]: === Iteration 23 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:12,625 INFO L82 PathProgramCache]: Analyzing trace with hash -357570925, now seen corresponding path program 1 times [2018-04-10 15:32:12,626 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:12,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:12,640 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:13,110 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:13,111 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:32:13,111 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-04-10 15:32:13,111 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:13,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:13,111 INFO L182 omatonBuilderFactory]: Interpolants [9859#true, 9860#false, 9861#(= 0 |main_#t~malloc0.offset|), 9862#(= main_~head~0.offset 0), 9863#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 9864#(and (= 12 (select |#length| |main_#t~malloc2.base|)) (= 0 |main_#t~malloc2.offset|) (= (select |#valid| |main_#t~malloc2.base|) 1) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~malloc2.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 9865#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))) 1) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 9866#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (not (= main_~head~0.base |main_#t~mem3.base|)) (= |main_#t~mem3.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))) 1) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| |main_#t~mem3.base|))), 9867#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))) 1) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 9868#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~x~0.offset)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))) 1) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 9869#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (not (= main_~x~0.base |main_#t~malloc6.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= main_~x~0.base main_~head~0.base) (= |main_#t~malloc6.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~x~0.offset))), 9870#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~head~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~head~0.offset 4))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= main_~x~0.base main_~head~0.base)), 9871#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (not (= main_~head~0.base |main_#t~mem7.base|))), 9872#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (not (= main_~x~0.base main_~head~0.base))), 9873#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4)))), 9874#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4)))), 9875#(and (= 12 (select |#length| |main_#t~mem15.base|)) (= |main_#t~mem15.offset| 0))] [2018-04-10 15:32:13,111 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:13,112 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-04-10 15:32:13,112 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-04-10 15:32:13,112 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2018-04-10 15:32:13,112 INFO L87 Difference]: Start difference. First operand 318 states and 367 transitions. Second operand 17 states. [2018-04-10 15:32:14,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:14,049 INFO L93 Difference]: Finished difference Result 485 states and 551 transitions. [2018-04-10 15:32:14,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-10 15:32:14,049 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 46 [2018-04-10 15:32:14,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:14,050 INFO L225 Difference]: With dead ends: 485 [2018-04-10 15:32:14,050 INFO L226 Difference]: Without dead ends: 485 [2018-04-10 15:32:14,051 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=235, Invalid=695, Unknown=0, NotChecked=0, Total=930 [2018-04-10 15:32:14,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2018-04-10 15:32:14,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 318. [2018-04-10 15:32:14,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2018-04-10 15:32:14,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 366 transitions. [2018-04-10 15:32:14,054 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 366 transitions. Word has length 46 [2018-04-10 15:32:14,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:14,055 INFO L459 AbstractCegarLoop]: Abstraction has 318 states and 366 transitions. [2018-04-10 15:32:14,055 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-04-10 15:32:14,055 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 366 transitions. [2018-04-10 15:32:14,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-04-10 15:32:14,056 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:14,056 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:14,056 INFO L408 AbstractCegarLoop]: === Iteration 24 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:14,056 INFO L82 PathProgramCache]: Analyzing trace with hash 694810563, now seen corresponding path program 1 times [2018-04-10 15:32:14,057 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:14,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:14,064 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:14,256 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:14,256 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:32:14,256 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-04-10 15:32:14,257 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:14,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:14,257 INFO L182 omatonBuilderFactory]: Interpolants [10707#true, 10708#false, 10709#(= 0 |main_#t~malloc0.offset|), 10710#(= main_~head~0.offset 0), 10711#(and (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= 0 main_~x~0.offset)), 10712#(and (= |main_#t~mem12| (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 10713#(and (or |main_#t~short14| (and (not (= 2 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))) (= main_~x~0.base main_~head~0.base))) (= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0)), 10714#(and (= main_~head~0.offset main_~x~0.offset) (not (= 2 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 10715#(and (not (= 2 (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)))) (= main_~head~0.offset 0)), 10716#(and (not (= 2 (select (select |#memory_int| main_~x~0.base) (+ 0 8)))) (= 0 main_~x~0.offset)), 10717#(not (= 2 (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)))), 10718#(not (= 2 |main_#t~mem22|))] [2018-04-10 15:32:14,257 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:14,257 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-10 15:32:14,257 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-10 15:32:14,257 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-04-10 15:32:14,257 INFO L87 Difference]: Start difference. First operand 318 states and 366 transitions. Second operand 12 states. [2018-04-10 15:32:14,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:14,592 INFO L93 Difference]: Finished difference Result 411 states and 461 transitions. [2018-04-10 15:32:14,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-10 15:32:14,592 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 46 [2018-04-10 15:32:14,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:14,594 INFO L225 Difference]: With dead ends: 411 [2018-04-10 15:32:14,594 INFO L226 Difference]: Without dead ends: 411 [2018-04-10 15:32:14,594 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2018-04-10 15:32:14,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2018-04-10 15:32:14,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 290. [2018-04-10 15:32:14,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2018-04-10 15:32:14,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 334 transitions. [2018-04-10 15:32:14,599 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 334 transitions. Word has length 46 [2018-04-10 15:32:14,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:14,600 INFO L459 AbstractCegarLoop]: Abstraction has 290 states and 334 transitions. [2018-04-10 15:32:14,600 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-10 15:32:14,600 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 334 transitions. [2018-04-10 15:32:14,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-04-10 15:32:14,600 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:14,601 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:14,601 INFO L408 AbstractCegarLoop]: === Iteration 25 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:14,601 INFO L82 PathProgramCache]: Analyzing trace with hash 690699782, now seen corresponding path program 1 times [2018-04-10 15:32:14,602 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:14,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:14,617 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:15,108 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:15,109 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:32:15,109 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-04-10 15:32:15,109 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:15,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:15,109 INFO L182 omatonBuilderFactory]: Interpolants [11436#true, 11437#false, 11438#(= 0 |main_#t~malloc0.offset|), 11439#(= main_~head~0.offset 0), 11440#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 11441#(and (= 1 (select |#valid| |main_#t~malloc2.base|)) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~malloc2.base|))), 11442#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 11443#(and (not (= main_~head~0.base |main_#t~mem3.base|)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 11444#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 11445#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 11446#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= main_~x~0.base main_~head~0.base) (or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= |main_#t~malloc6.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= main_~head~0.offset 0)), 11447#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~head~0.offset 4)))) (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~head~0.offset 4)))) (= (select |#valid| main_~x~0.base) 1)), 11448#(and (or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|))), 11449#(and (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (or (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))))), 11450#(and (not (= main_~head~0.base |main_#t~malloc9.base|)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (or (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))))), 11451#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 11452#(and (not (= |main_#t~mem10.base| main_~head~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= main_~head~0.offset 0)), 11453#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= main_~head~0.offset 0)), 11454#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= 0 main_~x~0.offset)), 11455#(= 1 (select |#valid| |main_#t~mem15.base|))] [2018-04-10 15:32:15,109 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:15,109 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-10 15:32:15,110 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-10 15:32:15,110 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2018-04-10 15:32:15,110 INFO L87 Difference]: Start difference. First operand 290 states and 334 transitions. Second operand 20 states. [2018-04-10 15:32:16,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:16,538 INFO L93 Difference]: Finished difference Result 613 states and 692 transitions. [2018-04-10 15:32:16,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-04-10 15:32:16,538 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 49 [2018-04-10 15:32:16,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:16,539 INFO L225 Difference]: With dead ends: 613 [2018-04-10 15:32:16,539 INFO L226 Difference]: Without dead ends: 613 [2018-04-10 15:32:16,540 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 461 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=582, Invalid=2070, Unknown=0, NotChecked=0, Total=2652 [2018-04-10 15:32:16,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2018-04-10 15:32:16,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 312. [2018-04-10 15:32:16,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2018-04-10 15:32:16,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 360 transitions. [2018-04-10 15:32:16,543 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 360 transitions. Word has length 49 [2018-04-10 15:32:16,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:16,543 INFO L459 AbstractCegarLoop]: Abstraction has 312 states and 360 transitions. [2018-04-10 15:32:16,543 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-10 15:32:16,544 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 360 transitions. [2018-04-10 15:32:16,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-04-10 15:32:16,544 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:16,544 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:16,544 INFO L408 AbstractCegarLoop]: === Iteration 26 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:16,544 INFO L82 PathProgramCache]: Analyzing trace with hash 690699783, now seen corresponding path program 1 times [2018-04-10 15:32:16,545 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:16,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:16,556 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:17,094 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:17,094 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:32:17,094 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-04-10 15:32:17,094 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:17,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:17,095 INFO L182 omatonBuilderFactory]: Interpolants [12448#(= main_~head~0.offset 0), 12449#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 12450#(and (= main_~head~0.offset |main_#t~malloc2.offset|) (= 12 (select |#length| |main_#t~malloc2.base|)) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~malloc2.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 12451#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 12452#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (not (= main_~head~0.base |main_#t~mem3.base|)) (= |main_#t~mem3.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 12453#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 12454#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~x~0.offset)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 12455#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (not (= main_~x~0.base |main_#t~malloc6.base|)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= |main_#t~malloc6.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~x~0.offset))), 12456#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~head~0.offset 4)))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~head~0.offset 4))) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 12457#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|))), 12458#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 12459#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (not (= main_~head~0.base |main_#t~malloc9.base|)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 12460#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~head~0.offset 0)), 12461#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (not (= |main_#t~mem10.base| main_~head~0.base)) (= main_~head~0.offset 0)), 12462#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (= main_~head~0.offset 0)), 12463#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4))) (= 0 main_~x~0.offset)), 12464#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= |main_#t~mem13.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4))) (= |main_#t~mem13.offset| main_~x~0.offset) (= 0 main_~x~0.offset)), 12465#(and (= 12 (select |#length| |main_#t~mem15.base|)) (= |main_#t~mem15.offset| 0)), 12445#true, 12446#false, 12447#(= |main_#t~malloc0.offset| 0)] [2018-04-10 15:32:17,095 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:17,095 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-10 15:32:17,095 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-10 15:32:17,095 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2018-04-10 15:32:17,095 INFO L87 Difference]: Start difference. First operand 312 states and 360 transitions. Second operand 21 states. [2018-04-10 15:32:18,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:18,250 INFO L93 Difference]: Finished difference Result 466 states and 533 transitions. [2018-04-10 15:32:18,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-10 15:32:18,251 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 49 [2018-04-10 15:32:18,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:18,251 INFO L225 Difference]: With dead ends: 466 [2018-04-10 15:32:18,251 INFO L226 Difference]: Without dead ends: 466 [2018-04-10 15:32:18,252 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=355, Invalid=1127, Unknown=0, NotChecked=0, Total=1482 [2018-04-10 15:32:18,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2018-04-10 15:32:18,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 296. [2018-04-10 15:32:18,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2018-04-10 15:32:18,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 340 transitions. [2018-04-10 15:32:18,255 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 340 transitions. Word has length 49 [2018-04-10 15:32:18,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:18,256 INFO L459 AbstractCegarLoop]: Abstraction has 296 states and 340 transitions. [2018-04-10 15:32:18,256 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-10 15:32:18,256 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 340 transitions. [2018-04-10 15:32:18,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-04-10 15:32:18,256 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:18,256 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:18,256 INFO L408 AbstractCegarLoop]: === Iteration 27 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:18,257 INFO L82 PathProgramCache]: Analyzing trace with hash -1085426215, now seen corresponding path program 1 times [2018-04-10 15:32:18,257 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:18,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:18,262 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:18,311 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:18,312 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:32:18,312 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-04-10 15:32:18,312 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:18,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:18,312 INFO L182 omatonBuilderFactory]: Interpolants [13264#true, 13265#false, 13266#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 13267#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem20.base|) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem20.offset|)), 13268#(and (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~x~0.offset) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~x~0.base)), 13269#(and (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 13270#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 13271#(and (= 0 |main_#t~mem21.offset|) (= 0 |main_#t~mem21.base|)), 13272#(and (= 0 main_~x~0.base) (= 0 main_~x~0.offset))] [2018-04-10 15:32:18,312 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:18,312 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-10 15:32:18,313 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-10 15:32:18,313 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-04-10 15:32:18,313 INFO L87 Difference]: Start difference. First operand 296 states and 340 transitions. Second operand 9 states. [2018-04-10 15:32:18,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:18,598 INFO L93 Difference]: Finished difference Result 394 states and 452 transitions. [2018-04-10 15:32:18,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-10 15:32:18,598 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 49 [2018-04-10 15:32:18,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:18,599 INFO L225 Difference]: With dead ends: 394 [2018-04-10 15:32:18,599 INFO L226 Difference]: Without dead ends: 394 [2018-04-10 15:32:18,599 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2018-04-10 15:32:18,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2018-04-10 15:32:18,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 328. [2018-04-10 15:32:18,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2018-04-10 15:32:18,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 378 transitions. [2018-04-10 15:32:18,603 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 378 transitions. Word has length 49 [2018-04-10 15:32:18,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:18,603 INFO L459 AbstractCegarLoop]: Abstraction has 328 states and 378 transitions. [2018-04-10 15:32:18,603 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-10 15:32:18,603 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 378 transitions. [2018-04-10 15:32:18,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-04-10 15:32:18,604 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:18,604 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:18,604 INFO L408 AbstractCegarLoop]: === Iteration 28 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:18,605 INFO L82 PathProgramCache]: Analyzing trace with hash 338904510, now seen corresponding path program 1 times [2018-04-10 15:32:18,605 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:18,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:18,613 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:18,783 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:18,783 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 15:32:18,783 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-04-10 15:32:18,783 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:18,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:18,783 INFO L182 omatonBuilderFactory]: Interpolants [14016#(and (not (= main_~x~0.base |main_#t~mem18.base|)) (= main_~x~0.offset 0) (= main_~head~0.offset 0)), 14017#(and (not |main_#t~short19|) (= main_~x~0.offset 0) (= main_~head~0.offset 0)), 14006#true, 14007#false, 14008#(= 0 |main_#t~malloc0.offset|), 14009#(= main_~head~0.offset 0), 14010#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 14011#(and (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~malloc2.base|))), 14012#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= main_~head~0.offset 0)), 14013#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (not (= main_~head~0.base |main_#t~mem3.base|)) (= main_~head~0.offset 0)), 14014#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= 0 main_~x~0.offset)), 14015#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~head~0.offset 4)))) (= main_~x~0.offset 0) (= main_~head~0.offset 0))] [2018-04-10 15:32:18,783 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:18,784 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-10 15:32:18,784 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-10 15:32:18,784 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2018-04-10 15:32:18,784 INFO L87 Difference]: Start difference. First operand 328 states and 378 transitions. Second operand 12 states. [2018-04-10 15:32:19,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:19,070 INFO L93 Difference]: Finished difference Result 413 states and 466 transitions. [2018-04-10 15:32:19,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-10 15:32:19,071 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 50 [2018-04-10 15:32:19,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:19,071 INFO L225 Difference]: With dead ends: 413 [2018-04-10 15:32:19,071 INFO L226 Difference]: Without dead ends: 401 [2018-04-10 15:32:19,072 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2018-04-10 15:32:19,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2018-04-10 15:32:19,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 324. [2018-04-10 15:32:19,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2018-04-10 15:32:19,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 371 transitions. [2018-04-10 15:32:19,074 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 371 transitions. Word has length 50 [2018-04-10 15:32:19,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:19,074 INFO L459 AbstractCegarLoop]: Abstraction has 324 states and 371 transitions. [2018-04-10 15:32:19,074 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-10 15:32:19,074 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 371 transitions. [2018-04-10 15:32:19,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-04-10 15:32:19,075 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:19,075 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:19,075 INFO L408 AbstractCegarLoop]: === Iteration 29 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:19,075 INFO L82 PathProgramCache]: Analyzing trace with hash 711524907, now seen corresponding path program 1 times [2018-04-10 15:32:19,076 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:19,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:19,082 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:19,140 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-10 15:32:19,140 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:32:19,140 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-04-10 15:32:19,141 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:19,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:19,141 INFO L182 omatonBuilderFactory]: Interpolants [14773#true, 14774#false, 14775#(= |#valid| |old(#valid)|), 14776#(= (store |#valid| |main_#t~malloc0.base| 0) |old(#valid)|), 14777#(= (store |#valid| main_~head~0.base 0) |old(#valid)|), 14778#(= (store |#valid| main_~x~0.base 0) |old(#valid)|)] [2018-04-10 15:32:19,141 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-10 15:32:19,141 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-10 15:32:19,141 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-10 15:32:19,142 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-10 15:32:19,142 INFO L87 Difference]: Start difference. First operand 324 states and 371 transitions. Second operand 6 states. [2018-04-10 15:32:19,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:19,273 INFO L93 Difference]: Finished difference Result 339 states and 385 transitions. [2018-04-10 15:32:19,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-10 15:32:19,273 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2018-04-10 15:32:19,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:19,274 INFO L225 Difference]: With dead ends: 339 [2018-04-10 15:32:19,274 INFO L226 Difference]: Without dead ends: 306 [2018-04-10 15:32:19,274 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-04-10 15:32:19,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2018-04-10 15:32:19,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 305. [2018-04-10 15:32:19,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2018-04-10 15:32:19,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 351 transitions. [2018-04-10 15:32:19,277 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 351 transitions. Word has length 50 [2018-04-10 15:32:19,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:19,277 INFO L459 AbstractCegarLoop]: Abstraction has 305 states and 351 transitions. [2018-04-10 15:32:19,277 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-10 15:32:19,277 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 351 transitions. [2018-04-10 15:32:19,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-04-10 15:32:19,278 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:19,278 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:19,278 INFO L408 AbstractCegarLoop]: === Iteration 30 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:19,279 INFO L82 PathProgramCache]: Analyzing trace with hash -2111877511, now seen corresponding path program 1 times [2018-04-10 15:32:19,279 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:19,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:19,289 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:19,459 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:19,459 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:32:19,459 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-04-10 15:32:19,459 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:19,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:19,460 INFO L182 omatonBuilderFactory]: Interpolants [15440#(= 0 |main_#t~mem23.offset|), 15429#true, 15430#false, 15431#(= 0 |main_#t~malloc0.offset|), 15432#(= main_~head~0.offset 0), 15433#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 15434#(and (= 0 |main_#t~malloc2.offset|) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~malloc2.base|))), 15435#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (= main_~head~0.offset 0)), 15436#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (not (= main_~head~0.base |main_#t~mem3.base|)) (= main_~head~0.offset 0)), 15437#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (= main_~head~0.offset 0)), 15438#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 15439#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ 0 4))) (= 0 main_~x~0.offset))] [2018-04-10 15:32:19,460 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:19,460 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-10 15:32:19,460 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-10 15:32:19,460 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2018-04-10 15:32:19,461 INFO L87 Difference]: Start difference. First operand 305 states and 351 transitions. Second operand 12 states. [2018-04-10 15:32:19,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:19,936 INFO L93 Difference]: Finished difference Result 640 states and 725 transitions. [2018-04-10 15:32:19,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-10 15:32:19,936 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 51 [2018-04-10 15:32:19,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:19,937 INFO L225 Difference]: With dead ends: 640 [2018-04-10 15:32:19,937 INFO L226 Difference]: Without dead ends: 640 [2018-04-10 15:32:19,938 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=246, Invalid=624, Unknown=0, NotChecked=0, Total=870 [2018-04-10 15:32:19,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2018-04-10 15:32:19,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 377. [2018-04-10 15:32:19,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2018-04-10 15:32:19,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 442 transitions. [2018-04-10 15:32:19,941 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 442 transitions. Word has length 51 [2018-04-10 15:32:19,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:19,941 INFO L459 AbstractCegarLoop]: Abstraction has 377 states and 442 transitions. [2018-04-10 15:32:19,941 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-10 15:32:19,941 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 442 transitions. [2018-04-10 15:32:19,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-04-10 15:32:19,942 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:19,942 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:19,942 INFO L408 AbstractCegarLoop]: === Iteration 31 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:19,942 INFO L82 PathProgramCache]: Analyzing trace with hash 1367089988, now seen corresponding path program 1 times [2018-04-10 15:32:19,943 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:19,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:19,947 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:20,068 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:20,068 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:32:20,068 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-04-10 15:32:20,068 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:20,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:20,069 INFO L182 omatonBuilderFactory]: Interpolants [16494#true, 16495#false, 16496#(= 1 (select |#valid| main_~head~0.base)), 16497#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 16498#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 16499#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 16500#(and (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem7.base|))), 16501#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base))), 16502#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (not (= main_~x~0.base main_~head~0.base))), 16503#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 16504#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 16505#(= 1 (select |#valid| |main_#t~mem20.base|)), 16506#(= 1 (select |#valid| main_~x~0.base))] [2018-04-10 15:32:20,069 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:20,069 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-10 15:32:20,069 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-10 15:32:20,069 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2018-04-10 15:32:20,069 INFO L87 Difference]: Start difference. First operand 377 states and 442 transitions. Second operand 13 states. [2018-04-10 15:32:20,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:20,659 INFO L93 Difference]: Finished difference Result 503 states and 576 transitions. [2018-04-10 15:32:20,659 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-04-10 15:32:20,659 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 51 [2018-04-10 15:32:20,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:20,661 INFO L225 Difference]: With dead ends: 503 [2018-04-10 15:32:20,661 INFO L226 Difference]: Without dead ends: 503 [2018-04-10 15:32:20,661 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2018-04-10 15:32:20,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2018-04-10 15:32:20,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 415. [2018-04-10 15:32:20,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2018-04-10 15:32:20,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 486 transitions. [2018-04-10 15:32:20,667 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 486 transitions. Word has length 51 [2018-04-10 15:32:20,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:20,667 INFO L459 AbstractCegarLoop]: Abstraction has 415 states and 486 transitions. [2018-04-10 15:32:20,667 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-10 15:32:20,667 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 486 transitions. [2018-04-10 15:32:20,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-04-10 15:32:20,668 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:20,668 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:20,668 INFO L408 AbstractCegarLoop]: === Iteration 32 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:20,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1367089989, now seen corresponding path program 1 times [2018-04-10 15:32:20,669 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:20,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:20,675 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:20,797 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:20,798 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:32:20,798 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-04-10 15:32:20,798 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:20,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:20,798 INFO L182 omatonBuilderFactory]: Interpolants [17456#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 17457#(and (= 0 |main_#t~mem20.offset|) (= 12 (select |#length| |main_#t~mem20.base|))), 17458#(and (= 12 (select |#length| main_~x~0.base)) (= 0 main_~x~0.offset)), 17447#true, 17448#false, 17449#(= 1 (select |#valid| main_~head~0.base)), 17450#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 17451#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= 0 |main_#t~malloc6.offset|) (= main_~x~0.offset main_~head~0.offset) (= 12 (select |#length| |main_#t~malloc6.base|)) (= main_~x~0.base main_~head~0.base)), 17452#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~x~0.base main_~head~0.base)), 17453#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 17454#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 17455#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))] [2018-04-10 15:32:20,798 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:20,798 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-10 15:32:20,798 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-10 15:32:20,798 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2018-04-10 15:32:20,799 INFO L87 Difference]: Start difference. First operand 415 states and 486 transitions. Second operand 12 states. [2018-04-10 15:32:21,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:21,256 INFO L93 Difference]: Finished difference Result 562 states and 643 transitions. [2018-04-10 15:32:21,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-10 15:32:21,256 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 51 [2018-04-10 15:32:21,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:21,258 INFO L225 Difference]: With dead ends: 562 [2018-04-10 15:32:21,258 INFO L226 Difference]: Without dead ends: 562 [2018-04-10 15:32:21,258 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2018-04-10 15:32:21,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2018-04-10 15:32:21,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 455. [2018-04-10 15:32:21,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 455 states. [2018-04-10 15:32:21,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 534 transitions. [2018-04-10 15:32:21,264 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 534 transitions. Word has length 51 [2018-04-10 15:32:21,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:21,264 INFO L459 AbstractCegarLoop]: Abstraction has 455 states and 534 transitions. [2018-04-10 15:32:21,264 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-10 15:32:21,264 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 534 transitions. [2018-04-10 15:32:21,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-04-10 15:32:21,265 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:21,265 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:21,265 INFO L408 AbstractCegarLoop]: === Iteration 33 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:21,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1043693160, now seen corresponding path program 1 times [2018-04-10 15:32:21,266 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:21,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:21,274 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:21,433 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:21,433 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:32:21,433 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-04-10 15:32:21,434 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:21,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:21,434 INFO L182 omatonBuilderFactory]: Interpolants [18496#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 18497#(and (= 1 (select |#valid| |main_#t~malloc2.base|)) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~malloc2.base|))), 18498#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= main_~head~0.offset 0)), 18499#(and (not (= main_~head~0.base |main_#t~mem3.base|)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= main_~head~0.offset 0)), 18500#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= main_~head~0.offset 0)), 18501#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 18502#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ 0 4)))) (= 0 main_~x~0.offset)), 18503#(= 1 (select |#valid| |main_#t~mem23.base|)), 18492#true, 18493#false, 18494#(= 0 |main_#t~malloc0.offset|), 18495#(= main_~head~0.offset 0)] [2018-04-10 15:32:21,434 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:21,434 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-10 15:32:21,434 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-10 15:32:21,434 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2018-04-10 15:32:21,434 INFO L87 Difference]: Start difference. First operand 455 states and 534 transitions. Second operand 12 states. [2018-04-10 15:32:21,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:21,808 INFO L93 Difference]: Finished difference Result 561 states and 651 transitions. [2018-04-10 15:32:21,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-10 15:32:21,808 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 52 [2018-04-10 15:32:21,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:21,809 INFO L225 Difference]: With dead ends: 561 [2018-04-10 15:32:21,809 INFO L226 Difference]: Without dead ends: 561 [2018-04-10 15:32:21,810 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=135, Invalid=327, Unknown=0, NotChecked=0, Total=462 [2018-04-10 15:32:21,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2018-04-10 15:32:21,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 465. [2018-04-10 15:32:21,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 465 states. [2018-04-10 15:32:21,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 545 transitions. [2018-04-10 15:32:21,813 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 545 transitions. Word has length 52 [2018-04-10 15:32:21,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:21,813 INFO L459 AbstractCegarLoop]: Abstraction has 465 states and 545 transitions. [2018-04-10 15:32:21,813 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-10 15:32:21,813 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 545 transitions. [2018-04-10 15:32:21,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-04-10 15:32:21,814 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:21,814 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:21,814 INFO L408 AbstractCegarLoop]: === Iteration 34 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:21,814 INFO L82 PathProgramCache]: Analyzing trace with hash 1417636850, now seen corresponding path program 1 times [2018-04-10 15:32:21,814 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:21,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:21,819 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:21,930 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:21,930 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:32:21,930 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-04-10 15:32:21,930 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:21,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:21,931 INFO L182 omatonBuilderFactory]: Interpolants [19552#(= 1 (select |#valid| main_~head~0.base)), 19553#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 19554#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 19555#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 19556#(and (= (select |#valid| main_~head~0.base) 1) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem7.base|))), 19557#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base))), 19558#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc9.base|)) (not (= main_~x~0.base main_~head~0.base))), 19559#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= (select |#valid| main_~x~0.base) 1)), 19560#(and (not (= |main_#t~mem10.base| main_~head~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 19561#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 19562#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 19563#(= 1 (select |#valid| |main_#t~mem20.base|)), 19564#(= 1 (select |#valid| main_~x~0.base)), 19550#true, 19551#false] [2018-04-10 15:32:21,931 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:21,931 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-10 15:32:21,931 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-10 15:32:21,931 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2018-04-10 15:32:21,931 INFO L87 Difference]: Start difference. First operand 465 states and 545 transitions. Second operand 15 states. [2018-04-10 15:32:22,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:22,606 INFO L93 Difference]: Finished difference Result 636 states and 738 transitions. [2018-04-10 15:32:22,606 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-10 15:32:22,606 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 54 [2018-04-10 15:32:22,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:22,607 INFO L225 Difference]: With dead ends: 636 [2018-04-10 15:32:22,607 INFO L226 Difference]: Without dead ends: 636 [2018-04-10 15:32:22,607 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=192, Invalid=678, Unknown=0, NotChecked=0, Total=870 [2018-04-10 15:32:22,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2018-04-10 15:32:22,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 510. [2018-04-10 15:32:22,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 510 states. [2018-04-10 15:32:22,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 596 transitions. [2018-04-10 15:32:22,612 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 596 transitions. Word has length 54 [2018-04-10 15:32:22,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:22,612 INFO L459 AbstractCegarLoop]: Abstraction has 510 states and 596 transitions. [2018-04-10 15:32:22,612 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-10 15:32:22,612 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 596 transitions. [2018-04-10 15:32:22,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-04-10 15:32:22,613 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:22,613 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:22,613 INFO L408 AbstractCegarLoop]: === Iteration 35 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:22,613 INFO L82 PathProgramCache]: Analyzing trace with hash 1417636851, now seen corresponding path program 1 times [2018-04-10 15:32:22,614 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:22,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:22,621 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:22,837 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:22,837 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:32:22,837 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-04-10 15:32:22,837 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:22,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:22,837 INFO L182 omatonBuilderFactory]: Interpolants [20741#true, 20742#false, 20743#(= 1 (select |#valid| main_~head~0.base)), 20744#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 20745#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= 0 |main_#t~malloc6.offset|) (= main_~x~0.offset main_~head~0.offset) (= 12 (select |#length| |main_#t~malloc6.base|)) (= main_~x~0.base main_~head~0.base)), 20746#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 20747#(and (= 12 (select |#length| |main_#t~mem7.base|)) (= (select |#valid| main_~head~0.base) 1) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 20748#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| main_~x~0.base)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 20749#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| main_~x~0.base)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 20750#(and (not (= main_~x~0.base |main_#t~malloc9.base|)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| main_~x~0.base)) (not (= main_~head~0.base |main_#t~malloc9.base|)) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 20751#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| main_~x~0.base)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 20752#(and (not (= |main_#t~mem10.base| main_~head~0.base)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 20753#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 20754#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 20755#(and (= 0 |main_#t~mem20.offset|) (= 12 (select |#length| |main_#t~mem20.base|))), 20756#(and (= 12 (select |#length| main_~x~0.base)) (= 0 main_~x~0.offset))] [2018-04-10 15:32:22,837 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:22,837 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-10 15:32:22,838 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-10 15:32:22,838 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2018-04-10 15:32:22,838 INFO L87 Difference]: Start difference. First operand 510 states and 596 transitions. Second operand 16 states. [2018-04-10 15:32:23,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:23,487 INFO L93 Difference]: Finished difference Result 696 states and 806 transitions. [2018-04-10 15:32:23,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-04-10 15:32:23,487 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 54 [2018-04-10 15:32:23,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:23,488 INFO L225 Difference]: With dead ends: 696 [2018-04-10 15:32:23,488 INFO L226 Difference]: Without dead ends: 696 [2018-04-10 15:32:23,488 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=156, Invalid=600, Unknown=0, NotChecked=0, Total=756 [2018-04-10 15:32:23,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2018-04-10 15:32:23,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 506. [2018-04-10 15:32:23,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 506 states. [2018-04-10 15:32:23,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 593 transitions. [2018-04-10 15:32:23,492 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 593 transitions. Word has length 54 [2018-04-10 15:32:23,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:23,492 INFO L459 AbstractCegarLoop]: Abstraction has 506 states and 593 transitions. [2018-04-10 15:32:23,492 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-10 15:32:23,493 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 593 transitions. [2018-04-10 15:32:23,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-04-10 15:32:23,493 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:23,493 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:23,493 INFO L408 AbstractCegarLoop]: === Iteration 36 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:23,494 INFO L82 PathProgramCache]: Analyzing trace with hash 689346944, now seen corresponding path program 1 times [2018-04-10 15:32:23,494 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:23,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:23,502 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:23,582 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-10 15:32:23,582 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 15:32:23,582 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-04-10 15:32:23,582 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:23,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:23,582 INFO L182 omatonBuilderFactory]: Interpolants [21984#false, 21985#(= 0 |main_#t~malloc0.offset|), 21986#(= main_~head~0.offset 0), 21987#(and (= 2 (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8))) (= main_~head~0.offset 0)), 21988#(and (= 2 (select (select |#memory_int| main_~x~0.base) (+ 0 8))) (= 0 main_~x~0.offset)), 21989#(and (= 2 |main_#t~mem22|) (= main_~head~0.offset 0)), 21983#true] [2018-04-10 15:32:23,583 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-10 15:32:23,583 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-10 15:32:23,583 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-10 15:32:23,583 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-04-10 15:32:23,583 INFO L87 Difference]: Start difference. First operand 506 states and 593 transitions. Second operand 7 states. [2018-04-10 15:32:23,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:23,706 INFO L93 Difference]: Finished difference Result 711 states and 828 transitions. [2018-04-10 15:32:23,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-10 15:32:23,706 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2018-04-10 15:32:23,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:23,707 INFO L225 Difference]: With dead ends: 711 [2018-04-10 15:32:23,707 INFO L226 Difference]: Without dead ends: 697 [2018-04-10 15:32:23,707 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-04-10 15:32:23,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2018-04-10 15:32:23,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 646. [2018-04-10 15:32:23,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 646 states. [2018-04-10 15:32:23,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 768 transitions. [2018-04-10 15:32:23,711 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 768 transitions. Word has length 56 [2018-04-10 15:32:23,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:23,711 INFO L459 AbstractCegarLoop]: Abstraction has 646 states and 768 transitions. [2018-04-10 15:32:23,711 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-10 15:32:23,711 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 768 transitions. [2018-04-10 15:32:23,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-04-10 15:32:23,712 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:23,712 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:23,712 INFO L408 AbstractCegarLoop]: === Iteration 37 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:23,712 INFO L82 PathProgramCache]: Analyzing trace with hash -277764453, now seen corresponding path program 1 times [2018-04-10 15:32:23,712 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:23,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:23,719 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:23,854 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:23,854 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:32:23,854 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-04-10 15:32:23,854 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:23,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:23,855 INFO L182 omatonBuilderFactory]: Interpolants [23360#(and (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~malloc2.base|))), 23361#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 23362#(and (not (= main_~head~0.base |main_#t~mem3.base|)) (= 1 (select |#valid| main_~head~0.base)) (= |main_#t~mem3.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))) (= main_~head~0.offset 0)), 23363#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= 1 (select |#valid| main_~head~0.base)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 23364#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ 0 4)))) (= 1 (select |#valid| main_~x~0.base)) (= 0 main_~x~0.offset)), 23365#(and (= 1 (select |#valid| main_~head~0.base)) (not (= |main_#t~mem23.base| main_~head~0.base))), 23366#(= 1 (select |#valid| main_~head~0.base)), 23355#true, 23356#false, 23357#(= 0 |main_#t~malloc0.offset|), 23358#(= main_~head~0.offset 0), 23359#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0))] [2018-04-10 15:32:23,855 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:23,855 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-10 15:32:23,855 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-10 15:32:23,855 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-04-10 15:32:23,855 INFO L87 Difference]: Start difference. First operand 646 states and 768 transitions. Second operand 12 states. [2018-04-10 15:32:24,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:24,089 INFO L93 Difference]: Finished difference Result 744 states and 875 transitions. [2018-04-10 15:32:24,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-10 15:32:24,089 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 56 [2018-04-10 15:32:24,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:24,090 INFO L225 Difference]: With dead ends: 744 [2018-04-10 15:32:24,090 INFO L226 Difference]: Without dead ends: 744 [2018-04-10 15:32:24,090 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=135, Invalid=327, Unknown=0, NotChecked=0, Total=462 [2018-04-10 15:32:24,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-04-10 15:32:24,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 648. [2018-04-10 15:32:24,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 648 states. [2018-04-10 15:32:24,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 770 transitions. [2018-04-10 15:32:24,094 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 770 transitions. Word has length 56 [2018-04-10 15:32:24,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:24,094 INFO L459 AbstractCegarLoop]: Abstraction has 648 states and 770 transitions. [2018-04-10 15:32:24,095 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-10 15:32:24,095 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 770 transitions. [2018-04-10 15:32:24,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-04-10 15:32:24,095 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:24,095 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:24,095 INFO L408 AbstractCegarLoop]: === Iteration 38 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:24,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1506285837, now seen corresponding path program 2 times [2018-04-10 15:32:24,096 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:24,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:24,108 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:24,543 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:24,543 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:32:24,543 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-04-10 15:32:24,543 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:24,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:24,543 INFO L182 omatonBuilderFactory]: Interpolants [24800#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))), 24801#(= 1 (select |#valid| |main_#t~mem15.base|)), 24779#true, 24780#false, 24781#(= 0 |main_#t~malloc0.offset|), 24782#(= main_~head~0.offset 0), 24783#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 24784#(and (= 1 (select |#valid| |main_#t~malloc2.base|)) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~malloc2.base|))), 24785#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 24786#(and (not (= main_~head~0.base |main_#t~mem3.base|)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 24787#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 24788#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 24789#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= main_~x~0.base main_~head~0.base) (or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= |main_#t~malloc6.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))))), 24790#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (= main_~x~0.base main_~head~0.base) (or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~head~0.offset 4)))) (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~head~0.offset 4))))), 24791#(and (or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base |main_#t~mem7.base|))), 24792#(and (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (or (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))))), 24793#(and (or (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= |main_#t~malloc6.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (not (= main_~head~0.base |main_#t~malloc6.base|)) (not (= main_~x~0.base main_~head~0.base))), 24794#(and (or (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 24795#(and (or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (not (= main_~head~0.base |main_#t~mem7.base|))), 24796#(and (not (= main_~x~0.base main_~head~0.base)) (or (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))))), 24797#(and (= 1 (select |#valid| main_~x~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (not (= main_~x~0.base main_~head~0.base))), 24798#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (not (= main_~x~0.base main_~head~0.base))), 24799#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))))] [2018-04-10 15:32:24,543 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:24,544 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-04-10 15:32:24,544 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-04-10 15:32:24,544 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2018-04-10 15:32:24,544 INFO L87 Difference]: Start difference. First operand 648 states and 770 transitions. Second operand 23 states. [2018-04-10 15:32:26,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:26,088 INFO L93 Difference]: Finished difference Result 1096 states and 1279 transitions. [2018-04-10 15:32:26,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-04-10 15:32:26,088 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 59 [2018-04-10 15:32:26,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:26,090 INFO L225 Difference]: With dead ends: 1096 [2018-04-10 15:32:26,090 INFO L226 Difference]: Without dead ends: 1096 [2018-04-10 15:32:26,090 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 754 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=760, Invalid=2780, Unknown=0, NotChecked=0, Total=3540 [2018-04-10 15:32:26,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2018-04-10 15:32:26,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 676. [2018-04-10 15:32:26,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 676 states. [2018-04-10 15:32:26,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 804 transitions. [2018-04-10 15:32:26,095 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 804 transitions. Word has length 59 [2018-04-10 15:32:26,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:26,095 INFO L459 AbstractCegarLoop]: Abstraction has 676 states and 804 transitions. [2018-04-10 15:32:26,096 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-04-10 15:32:26,096 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 804 transitions. [2018-04-10 15:32:26,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-04-10 15:32:26,096 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:26,097 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:26,097 INFO L408 AbstractCegarLoop]: === Iteration 39 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:26,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1506285836, now seen corresponding path program 2 times [2018-04-10 15:32:26,097 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:26,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:26,110 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:26,768 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:26,768 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:32:26,768 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-04-10 15:32:26,768 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:26,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:26,768 INFO L182 omatonBuilderFactory]: Interpolants [26656#(and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 26657#(and (= 0 main_~head~0.offset) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~x~0.offset)) (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 26658#(and (= 0 main_~head~0.offset) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (not (= main_~x~0.base |main_#t~malloc6.base|)) (= 12 (select |#length| |main_#t~malloc6.base|)) (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= main_~x~0.base main_~head~0.base) (= |main_#t~malloc6.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~x~0.offset))), 26659#(and (= 0 main_~head~0.offset) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~head~0.offset 4))) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1) (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~head~0.offset 4))))), 26660#(and (= 0 main_~head~0.offset) (= 12 (select |#length| |main_#t~mem7.base|)) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base |main_#t~mem7.base|))), 26661#(and (= 0 main_~head~0.offset) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (= 12 (select |#length| main_~x~0.base)) (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base))), 26662#(and (= 0 main_~head~0.offset) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (= 12 (select |#length| main_~x~0.base)) (= 1 (select |#valid| main_~x~0.base)) (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base))), 26663#(and (= 0 main_~head~0.offset) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (not (= main_~x~0.base |main_#t~malloc6.base|)) (= 12 (select |#length| main_~x~0.base)) (not (= main_~head~0.base |main_#t~malloc6.base|)) (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (not (= main_~x~0.base main_~head~0.base))), 26664#(and (= 0 main_~head~0.offset) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= (select |#length| main_~x~0.base) 12)), 26665#(and (= 0 main_~head~0.offset) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (not (= main_~head~0.base |main_#t~mem7.base|))), 26666#(and (= 0 main_~head~0.offset) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (not (= main_~x~0.base main_~head~0.base))), 26667#(and (= 0 main_~head~0.offset) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))))), 26668#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4))) (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= 0 main_~x~0.offset)), 26669#(and (= |main_#t~mem13.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4))) (= |main_#t~mem13.offset| main_~x~0.offset) (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= 0 main_~x~0.offset)), 26670#(and (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4)))), 26671#(and (<= 12 (select |#length| |main_#t~mem15.base|)) (= |main_#t~mem15.offset| 0)), 26648#true, 26649#false, 26650#(= |main_#t~malloc0.offset| 0), 26651#(= main_~head~0.offset 0), 26652#(and (= 1 (select |#valid| main_~head~0.base)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 0) (= main_~head~0.offset 0)), 26653#(and (= main_~head~0.offset |main_#t~malloc2.offset|) (= 12 (select |#length| |main_#t~malloc2.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 0) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~malloc2.base|))), 26654#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 26655#(and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (not (= main_~head~0.base |main_#t~mem3.base|)) (= |main_#t~mem3.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| |main_#t~mem3.base|)))] [2018-04-10 15:32:26,769 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:26,769 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-04-10 15:32:26,769 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-04-10 15:32:26,769 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=464, Unknown=0, NotChecked=0, Total=552 [2018-04-10 15:32:26,769 INFO L87 Difference]: Start difference. First operand 676 states and 804 transitions. Second operand 24 states. [2018-04-10 15:32:28,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:28,173 INFO L93 Difference]: Finished difference Result 1090 states and 1302 transitions. [2018-04-10 15:32:28,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-10 15:32:28,173 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 59 [2018-04-10 15:32:28,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:28,175 INFO L225 Difference]: With dead ends: 1090 [2018-04-10 15:32:28,175 INFO L226 Difference]: Without dead ends: 1090 [2018-04-10 15:32:28,175 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=382, Invalid=1340, Unknown=0, NotChecked=0, Total=1722 [2018-04-10 15:32:28,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1090 states. [2018-04-10 15:32:28,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1090 to 704. [2018-04-10 15:32:28,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 704 states. [2018-04-10 15:32:28,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 837 transitions. [2018-04-10 15:32:28,181 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 837 transitions. Word has length 59 [2018-04-10 15:32:28,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:28,181 INFO L459 AbstractCegarLoop]: Abstraction has 704 states and 837 transitions. [2018-04-10 15:32:28,181 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-04-10 15:32:28,181 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 837 transitions. [2018-04-10 15:32:28,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-04-10 15:32:28,181 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:28,181 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:28,182 INFO L408 AbstractCegarLoop]: === Iteration 40 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:28,182 INFO L82 PathProgramCache]: Analyzing trace with hash -1956802800, now seen corresponding path program 1 times [2018-04-10 15:32:28,182 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:28,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:28,188 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:28,451 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:28,451 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:32:28,451 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-04-10 15:32:28,451 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:28,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:28,451 INFO L182 omatonBuilderFactory]: Interpolants [28512#(and (= 1 (select |#valid| main_~x~0.base)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (not (= main_~x~0.base main_~head~0.base)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~x~0.base)), 28513#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 28514#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 28515#(and (= 0 |main_#t~mem20.offset|) (= 1 (select |#valid| |main_#t~mem20.base|)) (= |main_#t~mem20.base| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) (+ 0 4)))), 28516#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))) (= 0 main_~x~0.offset)), 28517#(and (= |main_#t~mem13.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))) (= 1 (select |#valid| main_~x~0.base)) (= |main_#t~mem13.base| main_~x~0.base) (= main_~x~0.offset 0)), 28518#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~x~0.offset 0)), 28519#(= 1 (select |#valid| |main_#t~mem15.base|)), 28502#true, 28503#false, 28504#(= 0 |main_#t~malloc0.offset|), 28505#(= main_~head~0.offset 0), 28506#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 28507#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 28508#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= 0 |main_#t~malloc6.offset|) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 28509#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0)), 28510#(and (= 0 |main_#t~mem7.offset|) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 28511#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))] [2018-04-10 15:32:28,451 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:28,451 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-10 15:32:28,451 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-10 15:32:28,452 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2018-04-10 15:32:28,452 INFO L87 Difference]: Start difference. First operand 704 states and 837 transitions. Second operand 18 states. [2018-04-10 15:32:29,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:29,330 INFO L93 Difference]: Finished difference Result 890 states and 1032 transitions. [2018-04-10 15:32:29,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-04-10 15:32:29,330 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 59 [2018-04-10 15:32:29,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:29,332 INFO L225 Difference]: With dead ends: 890 [2018-04-10 15:32:29,332 INFO L226 Difference]: Without dead ends: 890 [2018-04-10 15:32:29,332 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=274, Invalid=1132, Unknown=0, NotChecked=0, Total=1406 [2018-04-10 15:32:29,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2018-04-10 15:32:29,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 736. [2018-04-10 15:32:29,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 736 states. [2018-04-10 15:32:29,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 873 transitions. [2018-04-10 15:32:29,337 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 873 transitions. Word has length 59 [2018-04-10 15:32:29,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:29,338 INFO L459 AbstractCegarLoop]: Abstraction has 736 states and 873 transitions. [2018-04-10 15:32:29,338 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-10 15:32:29,338 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 873 transitions. [2018-04-10 15:32:29,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-04-10 15:32:29,338 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:29,338 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:29,338 INFO L408 AbstractCegarLoop]: === Iteration 41 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:29,339 INFO L82 PathProgramCache]: Analyzing trace with hash -1956802799, now seen corresponding path program 1 times [2018-04-10 15:32:29,339 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:29,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:29,344 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:29,666 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:29,666 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:32:29,666 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-04-10 15:32:29,667 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:29,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:29,667 INFO L182 omatonBuilderFactory]: Interpolants [30186#true, 30187#false, 30188#(= 0 |main_#t~malloc0.offset|), 30189#(= main_~head~0.offset 0), 30190#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 30191#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 30192#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= 0 |main_#t~malloc6.offset|) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 30193#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0)), 30194#(and (= 0 |main_#t~mem7.offset|) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 30195#(and (or (< main_~x~0.offset main_~head~0.offset) (and (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~x~0.base))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 30196#(and (< main_~x~0.offset (+ main_~head~0.offset 1)) (not (= main_~x~0.base main_~head~0.base)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~x~0.base)), 30197#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 30198#(and (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 4))) (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 30199#(and (= 0 |main_#t~mem20.offset|) (= |main_#t~mem20.offset| (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) (+ 0 4))) (= |main_#t~mem20.base| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) (+ 0 4)))), 30200#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))) (= 0 main_~x~0.offset)), 30201#(and (= |main_#t~mem13.offset| main_~x~0.offset) (= |main_#t~mem13.base| main_~x~0.base) (= main_~x~0.offset 0)), 30202#(and (= main_~x~0.offset 0) (not |main_#t~short14|)), 30203#(and (not |main_#t~short17|) (= main_~x~0.offset 0))] [2018-04-10 15:32:29,667 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:29,667 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-10 15:32:29,667 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-10 15:32:29,667 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2018-04-10 15:32:29,667 INFO L87 Difference]: Start difference. First operand 736 states and 873 transitions. Second operand 18 states. [2018-04-10 15:32:30,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:30,714 INFO L93 Difference]: Finished difference Result 860 states and 994 transitions. [2018-04-10 15:32:30,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-04-10 15:32:30,714 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 59 [2018-04-10 15:32:30,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:30,715 INFO L225 Difference]: With dead ends: 860 [2018-04-10 15:32:30,716 INFO L226 Difference]: Without dead ends: 860 [2018-04-10 15:32:30,716 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=360, Invalid=1446, Unknown=0, NotChecked=0, Total=1806 [2018-04-10 15:32:30,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2018-04-10 15:32:30,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 725. [2018-04-10 15:32:30,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 725 states. [2018-04-10 15:32:30,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 857 transitions. [2018-04-10 15:32:30,720 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 857 transitions. Word has length 59 [2018-04-10 15:32:30,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:30,721 INFO L459 AbstractCegarLoop]: Abstraction has 725 states and 857 transitions. [2018-04-10 15:32:30,721 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-10 15:32:30,721 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 857 transitions. [2018-04-10 15:32:30,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-04-10 15:32:30,721 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:30,721 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:30,721 INFO L408 AbstractCegarLoop]: === Iteration 42 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:30,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1784465383, now seen corresponding path program 1 times [2018-04-10 15:32:30,722 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:30,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:30,727 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:30,996 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:30,996 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:32:30,996 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-04-10 15:32:30,997 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:30,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:30,997 INFO L182 omatonBuilderFactory]: Interpolants [31840#false, 31841#(= |#valid| |old(#valid)|), 31842#(and (= (store |#valid| |main_#t~malloc0.base| 0) |old(#valid)|) (= 0 |main_#t~malloc0.offset|)), 31843#(and (= (store |#valid| main_~head~0.base 0) |old(#valid)|) (= main_~head~0.offset 0)), 31844#(and (= 1 (select |#valid| main_~head~0.base)) (= (store |#valid| main_~head~0.base 0) |old(#valid)|) (= main_~head~0.offset 0)), 31845#(and (= (store (store |#valid| |main_#t~malloc2.base| 0) main_~head~0.base 0) |old(#valid)|) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~malloc2.base|))), 31846#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= (store (store |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)) 0) main_~head~0.base 0) |old(#valid)|) (= main_~head~0.offset 0)), 31847#(and (not (= main_~head~0.base |main_#t~mem3.base|)) (= |main_#t~mem3.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))) (= (store (store |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)) 0) main_~head~0.base 0) |old(#valid)|) (= main_~head~0.offset 0)), 31848#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= main_~x~0.base main_~head~0.base) (= (store (store |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)) 0) main_~head~0.base 0) |old(#valid)|) (= main_~head~0.offset 0)), 31849#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ 0 4)))) (= |old(#valid)| (store (store |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) 4) 0) main_~x~0.base 0)) (= 0 main_~x~0.offset)), 31850#(and (= (store (store |#valid| |main_#t~mem23.base| 0) main_~head~0.base 0) |old(#valid)|) (not (= |main_#t~mem23.base| main_~head~0.base)) (= main_~head~0.offset 0)), 31851#(= (store |#valid| main_~head~0.base 0) |old(#valid)|), 31839#true] [2018-04-10 15:32:30,997 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:30,997 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-10 15:32:30,998 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-10 15:32:30,998 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2018-04-10 15:32:30,998 INFO L87 Difference]: Start difference. First operand 725 states and 857 transitions. Second operand 13 states. [2018-04-10 15:32:31,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:31,343 INFO L93 Difference]: Finished difference Result 732 states and 863 transitions. [2018-04-10 15:32:31,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-10 15:32:31,343 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 61 [2018-04-10 15:32:31,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:31,344 INFO L225 Difference]: With dead ends: 732 [2018-04-10 15:32:31,344 INFO L226 Difference]: Without dead ends: 691 [2018-04-10 15:32:31,345 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2018-04-10 15:32:31,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2018-04-10 15:32:31,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 691. [2018-04-10 15:32:31,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 691 states. [2018-04-10 15:32:31,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 822 transitions. [2018-04-10 15:32:31,349 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 822 transitions. Word has length 61 [2018-04-10 15:32:31,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:31,349 INFO L459 AbstractCegarLoop]: Abstraction has 691 states and 822 transitions. [2018-04-10 15:32:31,349 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-10 15:32:31,349 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 822 transitions. [2018-04-10 15:32:31,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-04-10 15:32:31,349 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:31,349 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:31,349 INFO L408 AbstractCegarLoop]: === Iteration 43 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:31,350 INFO L82 PathProgramCache]: Analyzing trace with hash -1079948289, now seen corresponding path program 1 times [2018-04-10 15:32:31,350 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:31,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:31,367 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:31,972 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:31,972 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:32:31,972 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-04-10 15:32:31,972 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:31,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:31,972 INFO L182 omatonBuilderFactory]: Interpolants [33293#true, 33294#false, 33295#(= 0 |main_#t~malloc0.offset|), 33296#(= main_~head~0.offset 0), 33297#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 33298#(and (= 1 (select |#valid| |main_#t~malloc2.base|)) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~malloc2.base|))), 33299#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 33300#(and (not (= main_~head~0.base |main_#t~mem3.base|)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 33301#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 33302#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (not (= main_~x~0.offset (+ main_~head~0.offset 4))) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 33303#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (not (= main_~x~0.offset (+ main_~head~0.offset 4))) (= main_~x~0.base main_~head~0.base) (or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= |main_#t~malloc6.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))))), 33304#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.offset (+ main_~head~0.offset 4))) (= main_~x~0.base main_~head~0.base) (or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~head~0.offset 4)))) (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~head~0.offset 4)))) (= (select |#valid| main_~x~0.base) 1)), 33305#(and (or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base |main_#t~mem7.base|))), 33306#(and (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (or (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))))), 33307#(and (not (= main_~head~0.base |main_#t~malloc9.base|)) (or (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)) |main_#t~malloc9.base|) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base))), 33308#(and (or (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))) (= (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)) (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base))), 33309#(and (not (= |main_#t~mem10.base| main_~head~0.base)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (or (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (and (= |main_#t~mem10.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))) (= |main_#t~mem10.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))))), 33310#(and (or (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= |main_#t~malloc6.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (not (= main_~head~0.base |main_#t~malloc6.base|)) (not (= main_~x~0.base main_~head~0.base))), 33311#(and (or (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 33312#(and (or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (not (= main_~head~0.base |main_#t~mem7.base|))), 33313#(and (not (= main_~x~0.base main_~head~0.base)) (or (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))))), 33314#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (not (= main_~x~0.base main_~head~0.base))), 33315#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))), 33316#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))), 33317#(= 1 (select |#valid| |main_#t~mem15.base|))] [2018-04-10 15:32:31,972 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:31,973 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-04-10 15:32:31,973 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-04-10 15:32:31,973 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2018-04-10 15:32:31,973 INFO L87 Difference]: Start difference. First operand 691 states and 822 transitions. Second operand 25 states. [2018-04-10 15:32:34,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:34,088 INFO L93 Difference]: Finished difference Result 862 states and 1004 transitions. [2018-04-10 15:32:34,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2018-04-10 15:32:34,088 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 62 [2018-04-10 15:32:34,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:34,089 INFO L225 Difference]: With dead ends: 862 [2018-04-10 15:32:34,089 INFO L226 Difference]: Without dead ends: 862 [2018-04-10 15:32:34,090 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1093 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1131, Invalid=4125, Unknown=0, NotChecked=0, Total=5256 [2018-04-10 15:32:34,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 862 states. [2018-04-10 15:32:34,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 862 to 663. [2018-04-10 15:32:34,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 663 states. [2018-04-10 15:32:34,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 786 transitions. [2018-04-10 15:32:34,095 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 786 transitions. Word has length 62 [2018-04-10 15:32:34,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:34,095 INFO L459 AbstractCegarLoop]: Abstraction has 663 states and 786 transitions. [2018-04-10 15:32:34,095 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-04-10 15:32:34,095 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 786 transitions. [2018-04-10 15:32:34,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-04-10 15:32:34,095 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:34,096 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:34,096 INFO L408 AbstractCegarLoop]: === Iteration 44 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:34,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1079948288, now seen corresponding path program 1 times [2018-04-10 15:32:34,096 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:34,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:34,116 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:34,866 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:34,866 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:32:34,866 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-04-10 15:32:34,866 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:34,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:34,866 INFO L182 omatonBuilderFactory]: Interpolants [34944#(and (= 12 (select |#length| |main_#t~malloc2.base|)) (= 0 |main_#t~malloc2.offset|) (= (select |#valid| |main_#t~malloc2.base|) 1) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~malloc2.base|))), 34945#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))) 1) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 34946#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (not (= main_~head~0.base |main_#t~mem3.base|)) (= |main_#t~mem3.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))) 1) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (= 12 (select |#length| |main_#t~mem3.base|))), 34947#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))) 1) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 34948#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))) 1) (not (= main_~x~0.offset (+ main_~head~0.offset 4))) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 34949#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (not (= main_~x~0.base |main_#t~malloc6.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (or (= (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)) |main_#t~malloc6.base|) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))) 1)) (not (= main_~x~0.offset (+ main_~head~0.offset 4))) (= main_~x~0.base main_~head~0.base)), 34950#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~head~0.offset 4)))) (or (= (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~head~0.offset 4)) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~head~0.offset 4))) 1)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~head~0.offset 4))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.offset (+ main_~head~0.offset 4))) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 34951#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (or (= (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)) |main_#t~mem7.base|) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))) 1)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base |main_#t~mem7.base|))), 34952#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (or (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))) 1))), 34953#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))) 1) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= (select |#valid| main_~x~0.base) 1)), 34954#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (not (= main_~head~0.base |main_#t~malloc9.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (not (= (select |#valid| main_~head~0.base) 0)) (not (= main_~x~0.base main_~head~0.base))), 34955#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (not (= (select |#valid| main_~head~0.base) 0)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (not (= main_~x~0.base main_~head~0.base))), 34956#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (not (= |main_#t~mem10.base| main_~head~0.base)) (not (= (select |#valid| main_~head~0.base) 0)) (not (= main_~x~0.base main_~head~0.base))), 34957#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (not (= (select |#valid| main_~head~0.base) 0)) (not (= main_~x~0.base main_~head~0.base))), 34958#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (not (= main_~head~0.base |main_#t~malloc6.base|)) (not (= main_~x~0.base main_~head~0.base))), 34959#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 34960#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (not (= main_~head~0.base |main_#t~mem7.base|))), 34961#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (not (= main_~x~0.base main_~head~0.base))), 34962#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4)))), 34963#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4)))), 34964#(and (= 12 (select |#length| |main_#t~mem15.base|)) (= |main_#t~mem15.offset| 0)), 34939#true, 34940#false, 34941#(= 0 |main_#t~malloc0.offset|), 34942#(= main_~head~0.offset 0), 34943#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0))] [2018-04-10 15:32:34,866 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:34,867 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-04-10 15:32:34,867 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-04-10 15:32:34,867 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=558, Unknown=0, NotChecked=0, Total=650 [2018-04-10 15:32:34,867 INFO L87 Difference]: Start difference. First operand 663 states and 786 transitions. Second operand 26 states. [2018-04-10 15:32:36,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:36,815 INFO L93 Difference]: Finished difference Result 814 states and 944 transitions. [2018-04-10 15:32:36,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-04-10 15:32:36,815 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 62 [2018-04-10 15:32:36,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:36,816 INFO L225 Difference]: With dead ends: 814 [2018-04-10 15:32:36,816 INFO L226 Difference]: Without dead ends: 814 [2018-04-10 15:32:36,817 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 460 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=664, Invalid=2198, Unknown=0, NotChecked=0, Total=2862 [2018-04-10 15:32:36,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2018-04-10 15:32:36,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 635. [2018-04-10 15:32:36,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 635 states. [2018-04-10 15:32:36,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 751 transitions. [2018-04-10 15:32:36,821 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 751 transitions. Word has length 62 [2018-04-10 15:32:36,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:36,821 INFO L459 AbstractCegarLoop]: Abstraction has 635 states and 751 transitions. [2018-04-10 15:32:36,821 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-04-10 15:32:36,821 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 751 transitions. [2018-04-10 15:32:36,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-04-10 15:32:36,822 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:36,822 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:36,822 INFO L408 AbstractCegarLoop]: === Iteration 45 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:36,822 INFO L82 PathProgramCache]: Analyzing trace with hash -518239810, now seen corresponding path program 1 times [2018-04-10 15:32:36,823 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:36,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:36,830 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:37,177 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:37,177 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:32:37,178 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-04-10 15:32:37,178 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:37,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:37,178 INFO L182 omatonBuilderFactory]: Interpolants [36480#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 36481#(and (not (= main_~x~0.base |main_#t~malloc9.base|)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc9.base|)) (= 1 (select |#valid| |main_#t~malloc9.base|)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (not (= main_~x~0.base main_~head~0.base)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 36482#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 36483#(and (not (= |main_#t~mem10.base| main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)))) (not (= |main_#t~mem10.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 36484#(and (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))), 36485#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 36486#(and (= 0 |main_#t~mem20.offset|) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) (+ 0 4))))), 36487#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= 0 main_~x~0.offset)), 36488#(= 1 (select |#valid| |main_#t~mem15.base|)), 36470#true, 36471#false, 36472#(= 0 |main_#t~malloc0.offset|), 36473#(= main_~head~0.offset 0), 36474#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 36475#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 36476#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= 0 |main_#t~malloc6.offset|) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 36477#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 36478#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (= 0 |main_#t~mem7.offset|) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 36479#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))] [2018-04-10 15:32:37,178 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:37,178 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-04-10 15:32:37,178 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-04-10 15:32:37,179 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2018-04-10 15:32:37,179 INFO L87 Difference]: Start difference. First operand 635 states and 751 transitions. Second operand 19 states. [2018-04-10 15:32:38,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:38,097 INFO L93 Difference]: Finished difference Result 848 states and 993 transitions. [2018-04-10 15:32:38,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-04-10 15:32:38,097 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 62 [2018-04-10 15:32:38,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:38,099 INFO L225 Difference]: With dead ends: 848 [2018-04-10 15:32:38,099 INFO L226 Difference]: Without dead ends: 848 [2018-04-10 15:32:38,099 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=318, Invalid=1322, Unknown=0, NotChecked=0, Total=1640 [2018-04-10 15:32:38,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2018-04-10 15:32:38,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 635. [2018-04-10 15:32:38,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 635 states. [2018-04-10 15:32:38,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 748 transitions. [2018-04-10 15:32:38,103 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 748 transitions. Word has length 62 [2018-04-10 15:32:38,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:38,103 INFO L459 AbstractCegarLoop]: Abstraction has 635 states and 748 transitions. [2018-04-10 15:32:38,103 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-04-10 15:32:38,103 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 748 transitions. [2018-04-10 15:32:38,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-04-10 15:32:38,104 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:38,104 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:38,104 INFO L408 AbstractCegarLoop]: === Iteration 46 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:38,104 INFO L82 PathProgramCache]: Analyzing trace with hash -518239809, now seen corresponding path program 1 times [2018-04-10 15:32:38,105 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:38,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:38,112 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:38,550 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:38,550 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:32:38,550 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-04-10 15:32:38,550 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:38,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:38,551 INFO L182 omatonBuilderFactory]: Interpolants [38016#true, 38017#false, 38018#(= 0 |main_#t~malloc0.offset|), 38019#(= main_~head~0.offset 0), 38020#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 38021#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 38022#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= 0 |main_#t~malloc6.offset|) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 38023#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 38024#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (= 0 |main_#t~mem7.offset|) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 38025#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 38026#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 38027#(and (= 0 |main_#t~malloc9.offset|) (not (= main_~x~0.base |main_#t~malloc9.base|)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc9.base|)) (= 12 (select |#length| |main_#t~malloc9.base|)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (not (= main_~x~0.base main_~head~0.base)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 38028#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4)))), 38029#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (not (= |main_#t~mem10.base| main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)))) (not (= |main_#t~mem10.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 38030#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))), 38031#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 4))))), 38032#(and (= 0 |main_#t~mem20.offset|) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) (+ 0 4)))), 38033#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4))) (= 0 main_~x~0.offset)), 38034#(and (= 12 (select |#length| |main_#t~mem15.base|)) (= |main_#t~mem15.offset| 0))] [2018-04-10 15:32:38,551 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:38,551 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-04-10 15:32:38,551 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-04-10 15:32:38,551 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2018-04-10 15:32:38,551 INFO L87 Difference]: Start difference. First operand 635 states and 748 transitions. Second operand 19 states. [2018-04-10 15:32:39,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:39,510 INFO L93 Difference]: Finished difference Result 832 states and 970 transitions. [2018-04-10 15:32:39,510 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-04-10 15:32:39,510 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 62 [2018-04-10 15:32:39,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:39,512 INFO L225 Difference]: With dead ends: 832 [2018-04-10 15:32:39,512 INFO L226 Difference]: Without dead ends: 832 [2018-04-10 15:32:39,512 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=278, Invalid=1128, Unknown=0, NotChecked=0, Total=1406 [2018-04-10 15:32:39,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2018-04-10 15:32:39,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 635. [2018-04-10 15:32:39,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 635 states. [2018-04-10 15:32:39,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 745 transitions. [2018-04-10 15:32:39,516 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 745 transitions. Word has length 62 [2018-04-10 15:32:39,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:39,516 INFO L459 AbstractCegarLoop]: Abstraction has 635 states and 745 transitions. [2018-04-10 15:32:39,517 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-04-10 15:32:39,517 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 745 transitions. [2018-04-10 15:32:39,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-04-10 15:32:39,517 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:39,517 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:39,517 INFO L408 AbstractCegarLoop]: === Iteration 47 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:39,517 INFO L82 PathProgramCache]: Analyzing trace with hash 1266248304, now seen corresponding path program 1 times [2018-04-10 15:32:39,518 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:39,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:39,524 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:39,595 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-10 15:32:39,596 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:32:39,596 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-04-10 15:32:39,596 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:39,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:39,596 INFO L182 omatonBuilderFactory]: Interpolants [39540#true, 39541#false, 39542#(= 1 (select |#valid| main_~head~0.base)), 39543#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 39544#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= 0 |main_#t~malloc6.base|))), 39545#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (= main_~x~0.base main_~head~0.base)), 39546#(and (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem7.base|))), 39547#(and (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base))), 39548#(not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 39549#(not (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 39550#(not (= 0 |main_#t~mem20.base|)), 39551#(not (= 0 main_~x~0.base))] [2018-04-10 15:32:39,596 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-10 15:32:39,596 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-10 15:32:39,596 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-10 15:32:39,596 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2018-04-10 15:32:39,597 INFO L87 Difference]: Start difference. First operand 635 states and 745 transitions. Second operand 12 states. [2018-04-10 15:32:39,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:39,991 INFO L93 Difference]: Finished difference Result 716 states and 826 transitions. [2018-04-10 15:32:39,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-10 15:32:39,991 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 63 [2018-04-10 15:32:39,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:39,992 INFO L225 Difference]: With dead ends: 716 [2018-04-10 15:32:39,992 INFO L226 Difference]: Without dead ends: 716 [2018-04-10 15:32:39,993 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2018-04-10 15:32:39,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2018-04-10 15:32:39,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 626. [2018-04-10 15:32:39,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 626 states. [2018-04-10 15:32:39,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 733 transitions. [2018-04-10 15:32:39,996 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 733 transitions. Word has length 63 [2018-04-10 15:32:39,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:39,996 INFO L459 AbstractCegarLoop]: Abstraction has 626 states and 733 transitions. [2018-04-10 15:32:39,996 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-10 15:32:39,996 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 733 transitions. [2018-04-10 15:32:39,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-04-10 15:32:39,997 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:39,997 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:39,997 INFO L408 AbstractCegarLoop]: === Iteration 48 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:39,997 INFO L82 PathProgramCache]: Analyzing trace with hash 1383646111, now seen corresponding path program 2 times [2018-04-10 15:32:39,997 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:40,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:40,002 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:40,125 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:40,125 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:32:40,125 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-04-10 15:32:40,126 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:40,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:40,126 INFO L182 omatonBuilderFactory]: Interpolants [40910#true, 40911#false, 40912#(= 1 (select |#valid| main_~head~0.base)), 40913#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 40914#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 40915#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 40916#(and (= (select |#valid| main_~head~0.base) 1) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem7.base|))), 40917#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base))), 40918#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc6.base|)) (not (= main_~x~0.base main_~head~0.base))), 40919#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 40920#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem7.base|))), 40921#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base))), 40922#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 40923#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 40924#(= 1 (select |#valid| |main_#t~mem20.base|)), 40925#(= 1 (select |#valid| main_~x~0.base))] [2018-04-10 15:32:40,126 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:40,126 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-10 15:32:40,126 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-10 15:32:40,126 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2018-04-10 15:32:40,126 INFO L87 Difference]: Start difference. First operand 626 states and 733 transitions. Second operand 16 states. [2018-04-10 15:32:40,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:40,758 INFO L93 Difference]: Finished difference Result 850 states and 988 transitions. [2018-04-10 15:32:40,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-10 15:32:40,758 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 64 [2018-04-10 15:32:40,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:40,760 INFO L225 Difference]: With dead ends: 850 [2018-04-10 15:32:40,760 INFO L226 Difference]: Without dead ends: 850 [2018-04-10 15:32:40,760 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=208, Invalid=784, Unknown=0, NotChecked=0, Total=992 [2018-04-10 15:32:40,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2018-04-10 15:32:40,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 705. [2018-04-10 15:32:40,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 705 states. [2018-04-10 15:32:40,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 825 transitions. [2018-04-10 15:32:40,765 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 825 transitions. Word has length 64 [2018-04-10 15:32:40,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:40,766 INFO L459 AbstractCegarLoop]: Abstraction has 705 states and 825 transitions. [2018-04-10 15:32:40,766 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-10 15:32:40,766 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 825 transitions. [2018-04-10 15:32:40,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-04-10 15:32:40,766 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:40,766 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:40,766 INFO L408 AbstractCegarLoop]: === Iteration 49 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:40,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1383646112, now seen corresponding path program 2 times [2018-04-10 15:32:40,767 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:40,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:40,773 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:41,018 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:41,018 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:32:41,018 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-04-10 15:32:41,018 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:41,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:41,018 INFO L182 omatonBuilderFactory]: Interpolants [42528#(and (= 0 |main_#t~mem20.offset|) (<= 12 (select |#length| |main_#t~mem20.base|))), 42529#(and (<= 12 (select |#length| main_~x~0.base)) (= 0 main_~x~0.offset)), 42513#true, 42514#false, 42515#(= 1 (select |#valid| main_~head~0.base)), 42516#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 42517#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= 0 |main_#t~malloc6.offset|) (= main_~x~0.offset main_~head~0.offset) (= 12 (select |#length| |main_#t~malloc6.base|)) (= main_~x~0.base main_~head~0.base)), 42518#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 42519#(and (= 12 (select |#length| |main_#t~mem7.base|)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 42520#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| main_~x~0.base)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 42521#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#length| main_~x~0.base) 12)), 42522#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (<= 12 (select |#length| main_~x~0.base)) (not (= main_~head~0.base |main_#t~malloc6.base|)) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 42523#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (<= 12 (select |#length| main_~x~0.base)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 42524#(and (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 42525#(and (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 42526#(and (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 42527#(and (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))] [2018-04-10 15:32:41,019 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:41,019 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-04-10 15:32:41,019 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-04-10 15:32:41,019 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2018-04-10 15:32:41,019 INFO L87 Difference]: Start difference. First operand 705 states and 825 transitions. Second operand 17 states. [2018-04-10 15:32:41,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:41,633 INFO L93 Difference]: Finished difference Result 910 states and 1056 transitions. [2018-04-10 15:32:41,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-04-10 15:32:41,634 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 64 [2018-04-10 15:32:41,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:41,635 INFO L225 Difference]: With dead ends: 910 [2018-04-10 15:32:41,635 INFO L226 Difference]: Without dead ends: 910 [2018-04-10 15:32:41,636 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=167, Invalid=645, Unknown=0, NotChecked=0, Total=812 [2018-04-10 15:32:41,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2018-04-10 15:32:41,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 733. [2018-04-10 15:32:41,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 733 states. [2018-04-10 15:32:41,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 860 transitions. [2018-04-10 15:32:41,640 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 860 transitions. Word has length 64 [2018-04-10 15:32:41,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:41,640 INFO L459 AbstractCegarLoop]: Abstraction has 733 states and 860 transitions. [2018-04-10 15:32:41,640 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-04-10 15:32:41,640 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 860 transitions. [2018-04-10 15:32:41,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-04-10 15:32:41,641 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:41,641 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:41,641 INFO L408 AbstractCegarLoop]: === Iteration 50 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:41,641 INFO L82 PathProgramCache]: Analyzing trace with hash -1645597525, now seen corresponding path program 1 times [2018-04-10 15:32:41,641 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:41,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:41,647 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:41,832 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:41,832 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:32:41,832 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-04-10 15:32:41,832 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:41,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:41,833 INFO L182 omatonBuilderFactory]: Interpolants [44197#true, 44198#false, 44199#(= (select |#valid| main_~head~0.base) 1), 44200#(and (= main_~x~0.offset main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1) (= main_~x~0.base main_~head~0.base)), 44201#(and (not (= main_~head~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= 0 |main_#t~malloc6.base|))), 44202#(and (not (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 44203#(and (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base |main_#t~mem7.base|))), 44204#(and (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base))), 44205#(and (not (= main_~head~0.base |main_#t~malloc9.base|)) (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base))), 44206#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 44207#(and (not (= |main_#t~mem10.base| main_~head~0.base)) (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 44208#(not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 44209#(not (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 44210#(not (= 0 |main_#t~mem20.base|)), 44211#(not (= 0 main_~x~0.base))] [2018-04-10 15:32:41,833 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:41,833 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-10 15:32:41,833 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-10 15:32:41,833 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2018-04-10 15:32:41,833 INFO L87 Difference]: Start difference. First operand 733 states and 860 transitions. Second operand 15 states. [2018-04-10 15:32:42,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:42,323 INFO L93 Difference]: Finished difference Result 888 states and 1040 transitions. [2018-04-10 15:32:42,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-10 15:32:42,323 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 66 [2018-04-10 15:32:42,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:42,325 INFO L225 Difference]: With dead ends: 888 [2018-04-10 15:32:42,325 INFO L226 Difference]: Without dead ends: 888 [2018-04-10 15:32:42,325 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=561, Unknown=0, NotChecked=0, Total=702 [2018-04-10 15:32:42,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2018-04-10 15:32:42,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 733. [2018-04-10 15:32:42,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 733 states. [2018-04-10 15:32:42,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 858 transitions. [2018-04-10 15:32:42,330 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 858 transitions. Word has length 66 [2018-04-10 15:32:42,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:42,330 INFO L459 AbstractCegarLoop]: Abstraction has 733 states and 858 transitions. [2018-04-10 15:32:42,330 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-10 15:32:42,330 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 858 transitions. [2018-04-10 15:32:42,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-04-10 15:32:42,330 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:42,330 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:42,331 INFO L408 AbstractCegarLoop]: === Iteration 51 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:42,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1909032369, now seen corresponding path program 1 times [2018-04-10 15:32:42,331 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:42,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:42,339 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:42,708 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:42,708 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:32:42,708 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-04-10 15:32:42,708 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:42,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:42,709 INFO L182 omatonBuilderFactory]: Interpolants [45857#true, 45858#false, 45859#(= |main_#t~malloc0.offset| 0), 45860#(= main_~head~0.offset 0), 45861#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 45862#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 45863#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 45864#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 45865#(and (= (select |#valid| main_~head~0.base) 1) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|))), 45866#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 45867#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc9.base|)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 45868#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 45869#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= |main_#t~mem10.base| main_~head~0.base)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 45870#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 45871#(and (= main_~head~0.offset |main_#t~malloc6.offset|) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base))), 45872#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 45873#(and (= main_~head~0.offset |main_#t~mem7.offset|) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 45874#(or (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)) (and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)))), 45875#(or (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)))), 45876#(or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (and (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 45877#(or (and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 45878#(or (= 1 (select |#valid| |main_#t~mem20.base|)) (and (= 0 |main_#t~mem20.offset|) (= 0 |main_#t~mem20.base|))), 45879#(or (= 1 (select |#valid| main_~x~0.base)) (and (= 0 main_~x~0.base) (= 0 main_~x~0.offset))), 45880#(= 1 (select |#valid| main_~x~0.base))] [2018-04-10 15:32:42,709 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:42,709 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-04-10 15:32:42,709 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-04-10 15:32:42,710 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=474, Unknown=0, NotChecked=0, Total=552 [2018-04-10 15:32:42,710 INFO L87 Difference]: Start difference. First operand 733 states and 858 transitions. Second operand 24 states. [2018-04-10 15:32:44,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:44,116 INFO L93 Difference]: Finished difference Result 1079 states and 1266 transitions. [2018-04-10 15:32:44,116 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-04-10 15:32:44,116 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 67 [2018-04-10 15:32:44,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:44,118 INFO L225 Difference]: With dead ends: 1079 [2018-04-10 15:32:44,118 INFO L226 Difference]: Without dead ends: 1079 [2018-04-10 15:32:44,119 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 936 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=838, Invalid=2702, Unknown=0, NotChecked=0, Total=3540 [2018-04-10 15:32:44,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2018-04-10 15:32:44,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 875. [2018-04-10 15:32:44,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 875 states. [2018-04-10 15:32:44,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1020 transitions. [2018-04-10 15:32:44,127 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1020 transitions. Word has length 67 [2018-04-10 15:32:44,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:44,127 INFO L459 AbstractCegarLoop]: Abstraction has 875 states and 1020 transitions. [2018-04-10 15:32:44,127 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-04-10 15:32:44,128 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1020 transitions. [2018-04-10 15:32:44,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-04-10 15:32:44,128 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:44,128 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:44,129 INFO L408 AbstractCegarLoop]: === Iteration 52 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:44,129 INFO L82 PathProgramCache]: Analyzing trace with hash 1909032370, now seen corresponding path program 1 times [2018-04-10 15:32:44,129 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:44,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:44,136 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:44,424 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:44,425 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:32:44,425 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-04-10 15:32:44,425 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:44,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:44,425 INFO L182 omatonBuilderFactory]: Interpolants [47907#true, 47908#false, 47909#(= 1 (select |#valid| main_~head~0.base)), 47910#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 47911#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= 0 |main_#t~malloc6.offset|) (= main_~x~0.offset main_~head~0.offset) (= 12 (select |#length| |main_#t~malloc6.base|)) (= main_~x~0.base main_~head~0.base)), 47912#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 47913#(and (= 12 (select |#length| |main_#t~mem7.base|)) (= (select |#valid| main_~head~0.base) 1) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 47914#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| main_~x~0.base)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 47915#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| main_~x~0.base)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 47916#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| main_~x~0.base)) (not (= main_~x~0.base |main_#t~malloc9.base|)) (not (= main_~head~0.base |main_#t~malloc9.base|)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 47917#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#length| main_~x~0.base) 12)), 47918#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= |main_#t~mem10.base| main_~head~0.base)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#length| main_~x~0.base) 12)), 47919#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| main_~x~0.base)) (not (= main_~head~0.base |main_#t~malloc6.base|)) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 47920#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| main_~x~0.base)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 47921#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 47922#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 47923#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 47924#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 47925#(and (= 0 |main_#t~mem20.offset|) (= 12 (select |#length| |main_#t~mem20.base|))), 47926#(and (= 12 (select |#length| main_~x~0.base)) (= 0 main_~x~0.offset))] [2018-04-10 15:32:44,425 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:44,425 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-10 15:32:44,425 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-10 15:32:44,425 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=311, Unknown=0, NotChecked=0, Total=380 [2018-04-10 15:32:44,426 INFO L87 Difference]: Start difference. First operand 875 states and 1020 transitions. Second operand 20 states. [2018-04-10 15:32:45,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:45,211 INFO L93 Difference]: Finished difference Result 1175 states and 1378 transitions. [2018-04-10 15:32:45,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-04-10 15:32:45,211 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 67 [2018-04-10 15:32:45,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:45,214 INFO L225 Difference]: With dead ends: 1175 [2018-04-10 15:32:45,214 INFO L226 Difference]: Without dead ends: 1175 [2018-04-10 15:32:45,214 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 345 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=315, Invalid=1245, Unknown=0, NotChecked=0, Total=1560 [2018-04-10 15:32:45,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states. [2018-04-10 15:32:45,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 858. [2018-04-10 15:32:45,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 858 states. [2018-04-10 15:32:45,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 1000 transitions. [2018-04-10 15:32:45,219 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 1000 transitions. Word has length 67 [2018-04-10 15:32:45,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:45,219 INFO L459 AbstractCegarLoop]: Abstraction has 858 states and 1000 transitions. [2018-04-10 15:32:45,219 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-10 15:32:45,219 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 1000 transitions. [2018-04-10 15:32:45,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-04-10 15:32:45,220 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:45,220 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:45,220 INFO L408 AbstractCegarLoop]: === Iteration 53 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:45,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1921252145, now seen corresponding path program 3 times [2018-04-10 15:32:45,221 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:45,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:45,226 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:45,384 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:45,385 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:32:45,385 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-04-10 15:32:45,385 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:45,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:45,385 INFO L182 omatonBuilderFactory]: Interpolants [50000#true, 50001#false, 50002#(= 1 (select |#valid| main_~head~0.base)), 50003#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 50004#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 50005#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 50006#(and (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.offset|) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem7.base|))), 50007#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base))), 50008#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 50009#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 50010#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 50011#(and (= 0 (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|)) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) |main_#t~mem20.offset|))), 50012#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 50013#(and (= 0 |main_#t~mem20.offset|) (= 0 |main_#t~mem20.base|)), 50014#(and (= 0 main_~x~0.base) (= 0 main_~x~0.offset))] [2018-04-10 15:32:45,385 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:45,385 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-10 15:32:45,385 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-10 15:32:45,385 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2018-04-10 15:32:45,386 INFO L87 Difference]: Start difference. First operand 858 states and 1000 transitions. Second operand 15 states. [2018-04-10 15:32:45,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:45,906 INFO L93 Difference]: Finished difference Result 888 states and 1017 transitions. [2018-04-10 15:32:45,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-10 15:32:45,907 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 67 [2018-04-10 15:32:45,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:45,909 INFO L225 Difference]: With dead ends: 888 [2018-04-10 15:32:45,909 INFO L226 Difference]: Without dead ends: 888 [2018-04-10 15:32:45,909 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=134, Invalid=736, Unknown=0, NotChecked=0, Total=870 [2018-04-10 15:32:45,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2018-04-10 15:32:45,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 848. [2018-04-10 15:32:45,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 848 states. [2018-04-10 15:32:45,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 978 transitions. [2018-04-10 15:32:45,916 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 978 transitions. Word has length 67 [2018-04-10 15:32:45,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:45,917 INFO L459 AbstractCegarLoop]: Abstraction has 848 states and 978 transitions. [2018-04-10 15:32:45,917 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-10 15:32:45,917 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 978 transitions. [2018-04-10 15:32:45,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-04-10 15:32:45,917 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:45,917 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:45,917 INFO L408 AbstractCegarLoop]: === Iteration 54 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:45,918 INFO L82 PathProgramCache]: Analyzing trace with hash 719858104, now seen corresponding path program 2 times [2018-04-10 15:32:45,918 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:45,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:45,924 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:46,317 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:46,317 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:32:46,317 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-04-10 15:32:46,317 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:46,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:46,318 INFO L182 omatonBuilderFactory]: Interpolants [51781#true, 51782#false, 51783#(= 0 |main_#t~malloc0.offset|), 51784#(= 0 main_~head~0.offset), 51785#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base))), 51786#(and (= 0 main_~head~0.offset) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 51787#(and (= 0 main_~head~0.offset) (not (= main_~x~0.base |main_#t~malloc6.base|)) (= 0 |main_#t~malloc6.offset|) (= main_~x~0.offset main_~head~0.offset) (= 12 (select |#length| |main_#t~malloc6.base|)) (= main_~x~0.base main_~head~0.base)), 51788#(and (= 0 main_~head~0.offset) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (= main_~x~0.base main_~head~0.base)), 51789#(and (= 0 main_~head~0.offset) (= 12 (select |#length| |main_#t~mem7.base|)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 51790#(and (= 0 main_~head~0.offset) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| main_~x~0.base)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 51791#(and (= 0 main_~head~0.offset) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| main_~x~0.base)) (= 1 (select |#valid| main_~x~0.base)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 51792#(and (= 0 main_~head~0.offset) (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| main_~x~0.base)) (not (= main_~head~0.base |main_#t~malloc6.base|)) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 51793#(and (= 0 main_~head~0.offset) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| main_~x~0.base)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 51794#(and (= 0 main_~head~0.offset) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 51795#(and (= 0 main_~head~0.offset) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 51796#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~malloc9.offset| main_~head~0.offset) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 51797#(and (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4)) main_~head~0.offset) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 51798#(or (and (not (= |main_#t~mem10.base| main_~head~0.base)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (= |main_#t~mem10.offset| main_~head~0.offset) (= |main_#t~mem10.base| main_~head~0.base))), 51799#(or (and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 51800#(or (and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 51801#(or (and (= 0 |main_#t~mem20.offset|) (= 12 (select |#length| |main_#t~mem20.base|))) (and (= 0 |main_#t~mem20.offset|) (= 0 |main_#t~mem20.base|))), 51802#(or (and (= 12 (select |#length| main_~x~0.base)) (= 0 main_~x~0.offset)) (and (= 0 main_~x~0.base) (= 0 main_~x~0.offset))), 51803#(and (= 12 (select |#length| main_~x~0.base)) (= main_~x~0.offset 0))] [2018-04-10 15:32:46,318 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:46,318 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-04-10 15:32:46,318 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-04-10 15:32:46,318 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=432, Unknown=0, NotChecked=0, Total=506 [2018-04-10 15:32:46,318 INFO L87 Difference]: Start difference. First operand 848 states and 978 transitions. Second operand 23 states. [2018-04-10 15:32:47,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:47,792 INFO L93 Difference]: Finished difference Result 1260 states and 1465 transitions. [2018-04-10 15:32:47,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-04-10 15:32:47,792 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 67 [2018-04-10 15:32:47,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:47,795 INFO L225 Difference]: With dead ends: 1260 [2018-04-10 15:32:47,795 INFO L226 Difference]: Without dead ends: 1260 [2018-04-10 15:32:47,795 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 723 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=570, Invalid=2510, Unknown=0, NotChecked=0, Total=3080 [2018-04-10 15:32:47,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1260 states. [2018-04-10 15:32:47,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1260 to 830. [2018-04-10 15:32:47,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 830 states. [2018-04-10 15:32:47,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 955 transitions. [2018-04-10 15:32:47,804 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 955 transitions. Word has length 67 [2018-04-10 15:32:47,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:47,804 INFO L459 AbstractCegarLoop]: Abstraction has 830 states and 955 transitions. [2018-04-10 15:32:47,804 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-04-10 15:32:47,805 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 955 transitions. [2018-04-10 15:32:47,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-04-10 15:32:47,805 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:47,805 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:47,805 INFO L408 AbstractCegarLoop]: === Iteration 55 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:47,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1000066691, now seen corresponding path program 2 times [2018-04-10 15:32:47,806 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:47,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:47,814 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:48,049 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:48,050 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:32:48,050 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-04-10 15:32:48,050 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:48,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:48,050 INFO L182 omatonBuilderFactory]: Interpolants [53960#true, 53961#false, 53962#(= 1 (select |#valid| main_~head~0.base)), 53963#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 53964#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 53965#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 53966#(and (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.offset|) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base |main_#t~mem7.base|))), 53967#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base))), 53968#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 53969#(and (not (= main_~x~0.base |main_#t~malloc9.base|)) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc9.base|)) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 53970#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 53971#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= |main_#t~mem10.base| main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= |main_#t~mem10.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 53972#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 53973#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 53974#(and (= 0 (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|)) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) |main_#t~mem20.offset|))), 53975#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 53976#(and (= 0 |main_#t~mem20.offset|) (= 0 |main_#t~mem20.base|)), 53977#(and (= 0 main_~x~0.base) (= 0 main_~x~0.offset))] [2018-04-10 15:32:48,050 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:48,050 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-10 15:32:48,050 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-10 15:32:48,050 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2018-04-10 15:32:48,051 INFO L87 Difference]: Start difference. First operand 830 states and 955 transitions. Second operand 18 states. [2018-04-10 15:32:48,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:48,731 INFO L93 Difference]: Finished difference Result 897 states and 1021 transitions. [2018-04-10 15:32:48,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-04-10 15:32:48,731 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 70 [2018-04-10 15:32:48,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:48,733 INFO L225 Difference]: With dead ends: 897 [2018-04-10 15:32:48,733 INFO L226 Difference]: Without dead ends: 860 [2018-04-10 15:32:48,733 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=177, Invalid=945, Unknown=0, NotChecked=0, Total=1122 [2018-04-10 15:32:48,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2018-04-10 15:32:48,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 811. [2018-04-10 15:32:48,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 811 states. [2018-04-10 15:32:48,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 933 transitions. [2018-04-10 15:32:48,738 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 933 transitions. Word has length 70 [2018-04-10 15:32:48,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:48,738 INFO L459 AbstractCegarLoop]: Abstraction has 811 states and 933 transitions. [2018-04-10 15:32:48,738 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-10 15:32:48,738 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 933 transitions. [2018-04-10 15:32:48,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-04-10 15:32:48,739 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:48,739 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:48,739 INFO L408 AbstractCegarLoop]: === Iteration 56 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:48,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1641043558, now seen corresponding path program 2 times [2018-04-10 15:32:48,740 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:48,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:48,747 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:49,237 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:49,237 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:32:49,237 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-04-10 15:32:49,237 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:49,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:49,238 INFO L182 omatonBuilderFactory]: Interpolants [55744#(and (<= 12 (select |#length| main_~x~0.base)) (= main_~x~0.offset 0)), 55718#true, 55719#false, 55720#(= 0 |main_#t~malloc0.offset|), 55721#(= 0 main_~head~0.offset), 55722#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base))), 55723#(and (= 0 main_~head~0.offset) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 55724#(and (= 0 main_~head~0.offset) (not (= main_~x~0.base |main_#t~malloc6.base|)) (= 0 |main_#t~malloc6.offset|) (= main_~x~0.offset main_~head~0.offset) (= 12 (select |#length| |main_#t~malloc6.base|)) (= main_~x~0.base main_~head~0.base)), 55725#(and (= 0 main_~head~0.offset) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 55726#(and (= 0 main_~head~0.offset) (= 12 (select |#length| |main_#t~mem7.base|)) (= (select |#valid| main_~head~0.base) 1) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 55727#(and (= 0 main_~head~0.offset) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| main_~x~0.base)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 55728#(and (= 0 main_~head~0.offset) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| main_~x~0.base)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 55729#(and (= 0 main_~head~0.offset) (not (= main_~x~0.base |main_#t~malloc9.base|)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| main_~x~0.base)) (not (= main_~head~0.base |main_#t~malloc9.base|)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 55730#(and (= 0 main_~head~0.offset) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#length| main_~x~0.base) 12)), 55731#(and (= 0 main_~head~0.offset) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= |main_#t~mem10.base| main_~head~0.base)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#length| main_~x~0.base) 12)), 55732#(and (= 0 main_~head~0.offset) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (<= 12 (select |#length| main_~x~0.base)) (not (= main_~head~0.base |main_#t~malloc6.base|)) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 55733#(and (= 0 main_~head~0.offset) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (<= 12 (select |#length| main_~x~0.base)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= (select |#valid| main_~x~0.base) 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 55734#(and (= 0 main_~head~0.offset) (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 55735#(and (= 0 main_~head~0.offset) (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 55736#(and (= 0 main_~head~0.offset) (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 55737#(and (not (= main_~x~0.base |main_#t~malloc9.base|)) (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~malloc9.offset| main_~head~0.offset) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 55738#(and (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4)) main_~head~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 55739#(or (and (= |main_#t~mem10.offset| main_~head~0.offset) (= |main_#t~mem10.base| main_~head~0.base)) (and (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= |main_#t~mem10.base| main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 55740#(or (and (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 55741#(or (and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 55742#(or (and (= 0 |main_#t~mem20.offset|) (<= 12 (select |#length| |main_#t~mem20.base|))) (and (= 0 |main_#t~mem20.offset|) (= 0 |main_#t~mem20.base|))), 55743#(or (and (= 0 main_~x~0.base) (= 0 main_~x~0.offset)) (and (<= 12 (select |#length| main_~x~0.base)) (= 0 main_~x~0.offset)))] [2018-04-10 15:32:49,238 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:49,238 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-04-10 15:32:49,238 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-04-10 15:32:49,238 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=603, Unknown=0, NotChecked=0, Total=702 [2018-04-10 15:32:49,238 INFO L87 Difference]: Start difference. First operand 811 states and 933 transitions. Second operand 27 states. [2018-04-10 15:32:51,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:51,151 INFO L93 Difference]: Finished difference Result 1109 states and 1289 transitions. [2018-04-10 15:32:51,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-04-10 15:32:51,151 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 70 [2018-04-10 15:32:51,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:51,152 INFO L225 Difference]: With dead ends: 1109 [2018-04-10 15:32:51,152 INFO L226 Difference]: Without dead ends: 1109 [2018-04-10 15:32:51,152 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1247 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=841, Invalid=3715, Unknown=0, NotChecked=0, Total=4556 [2018-04-10 15:32:51,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2018-04-10 15:32:51,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 805. [2018-04-10 15:32:51,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 805 states. [2018-04-10 15:32:51,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 931 transitions. [2018-04-10 15:32:51,159 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 931 transitions. Word has length 70 [2018-04-10 15:32:51,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:51,159 INFO L459 AbstractCegarLoop]: Abstraction has 805 states and 931 transitions. [2018-04-10 15:32:51,159 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-04-10 15:32:51,159 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 931 transitions. [2018-04-10 15:32:51,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-04-10 15:32:51,160 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:51,160 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:51,160 INFO L408 AbstractCegarLoop]: === Iteration 57 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:51,160 INFO L82 PathProgramCache]: Analyzing trace with hash 1242408043, now seen corresponding path program 2 times [2018-04-10 15:32:51,161 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:51,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:51,167 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:51,849 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 2 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:51,849 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:32:51,849 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-04-10 15:32:51,849 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:51,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:51,850 INFO L182 omatonBuilderFactory]: Interpolants [57741#true, 57742#false, 57743#(= 0 |main_#t~malloc0.offset|), 57744#(= main_~head~0.offset 0), 57745#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 57746#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) 0) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 57747#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) 0) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 57748#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= 0 |main_#t~malloc6.offset|) (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) 0) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 57749#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) 0) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 57750#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) 0) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (= 0 |main_#t~mem7.offset|) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 57751#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) 0) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 57752#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) 0) (= 1 (select |#valid| main_~x~0.base)) (= main_~head~0.offset main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 57753#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 57754#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc6.base|)) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base main_~head~0.base)) (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 57755#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 57756#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|)) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 57757#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 57758#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 57759#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 57760#(and (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 main_~x~0.offset)), 57761#(and (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 8))) (= |main_#t~mem12| (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= main_~x~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 57762#(and (= main_~x~0.offset 0) (or |main_#t~short14| (and (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 8))) (not (= 2 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 57763#(and (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 8))) (= main_~x~0.offset 0) (not (= 2 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 57764#(and (= 0 |main_#t~mem20.offset|) (not (= 2 (select (select |#memory_int| |main_#t~mem20.base|) (+ 0 8))))), 57765#(and (not (= 2 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))) (= 0 main_~x~0.offset)), 57766#(and (not (= 2 |main_#t~mem12|)) (= main_~x~0.offset 0)), 57767#(and (= main_~x~0.offset 0) (not |main_#t~short14|))] [2018-04-10 15:32:51,850 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 2 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:51,850 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-04-10 15:32:51,850 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-04-10 15:32:51,850 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=605, Unknown=0, NotChecked=0, Total=702 [2018-04-10 15:32:51,850 INFO L87 Difference]: Start difference. First operand 805 states and 931 transitions. Second operand 27 states. [2018-04-10 15:32:53,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:53,411 INFO L93 Difference]: Finished difference Result 1206 states and 1366 transitions. [2018-04-10 15:32:53,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-04-10 15:32:53,411 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 72 [2018-04-10 15:32:53,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:53,413 INFO L225 Difference]: With dead ends: 1206 [2018-04-10 15:32:53,413 INFO L226 Difference]: Without dead ends: 1206 [2018-04-10 15:32:53,413 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 792 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=678, Invalid=2982, Unknown=0, NotChecked=0, Total=3660 [2018-04-10 15:32:53,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2018-04-10 15:32:53,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 883. [2018-04-10 15:32:53,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 883 states. [2018-04-10 15:32:53,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1016 transitions. [2018-04-10 15:32:53,418 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1016 transitions. Word has length 72 [2018-04-10 15:32:53,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:53,418 INFO L459 AbstractCegarLoop]: Abstraction has 883 states and 1016 transitions. [2018-04-10 15:32:53,418 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-04-10 15:32:53,418 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1016 transitions. [2018-04-10 15:32:53,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-04-10 15:32:53,419 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:53,419 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:53,419 INFO L408 AbstractCegarLoop]: === Iteration 58 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:53,419 INFO L82 PathProgramCache]: Analyzing trace with hash 69924467, now seen corresponding path program 1 times [2018-04-10 15:32:53,420 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:53,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:53,426 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:53,829 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:53,829 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:32:53,829 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-04-10 15:32:53,829 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:53,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:53,830 INFO L182 omatonBuilderFactory]: Interpolants [59936#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= main_~head~0.offset main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 59937#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc6.base|)) (= 1 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 59938#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 1 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= main_~head~0.offset main_~x~0.offset) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 59939#(and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|)) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 59940#(and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 59941#(and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 59942#(and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 59943#(and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 59944#(and (= 0 |main_#t~mem20.offset|) (= 1 (select (select |#memory_int| |main_#t~mem20.base|) (+ 0 8)))), 59945#(and (= 1 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= 0 main_~x~0.offset)), 59946#(and (= main_~x~0.offset 0) (= 1 |main_#t~mem12|)), 59947#(and (= main_~x~0.offset 0) (not |main_#t~short14|)), 59925#true, 59926#false, 59927#(= 0 |main_#t~malloc0.offset|), 59928#(= main_~head~0.offset 0), 59929#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 59930#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 59931#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= 0 |main_#t~malloc6.offset|) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 59932#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 59933#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (= 0 |main_#t~mem7.offset|) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 59934#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 59935#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (= main_~head~0.offset main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))] [2018-04-10 15:32:53,830 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:53,830 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-04-10 15:32:53,830 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-04-10 15:32:53,830 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2018-04-10 15:32:53,830 INFO L87 Difference]: Start difference. First operand 883 states and 1016 transitions. Second operand 23 states. [2018-04-10 15:32:55,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:55,154 INFO L93 Difference]: Finished difference Result 1235 states and 1404 transitions. [2018-04-10 15:32:55,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-04-10 15:32:55,155 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 72 [2018-04-10 15:32:55,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:55,156 INFO L225 Difference]: With dead ends: 1235 [2018-04-10 15:32:55,156 INFO L226 Difference]: Without dead ends: 1235 [2018-04-10 15:32:55,156 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 510 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=453, Invalid=2097, Unknown=0, NotChecked=0, Total=2550 [2018-04-10 15:32:55,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1235 states. [2018-04-10 15:32:55,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1235 to 961. [2018-04-10 15:32:55,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 961 states. [2018-04-10 15:32:55,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1105 transitions. [2018-04-10 15:32:55,161 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 1105 transitions. Word has length 72 [2018-04-10 15:32:55,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:55,161 INFO L459 AbstractCegarLoop]: Abstraction has 961 states and 1105 transitions. [2018-04-10 15:32:55,161 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-04-10 15:32:55,161 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1105 transitions. [2018-04-10 15:32:55,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-04-10 15:32:55,162 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:55,162 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:55,162 INFO L408 AbstractCegarLoop]: === Iteration 59 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:55,162 INFO L82 PathProgramCache]: Analyzing trace with hash -1538340749, now seen corresponding path program 1 times [2018-04-10 15:32:55,162 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:55,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:55,168 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:55,567 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 2 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:55,567 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:32:55,567 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-04-10 15:32:55,567 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:55,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:55,568 INFO L182 omatonBuilderFactory]: Interpolants [62208#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (= 0 |main_#t~mem7.offset|) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 62209#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 62210#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (= main_~head~0.offset main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 62211#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= main_~head~0.offset main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 62212#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc6.base|)) (= main_~head~0.offset main_~x~0.offset) (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 62213#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 62214#(and (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 62215#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 62216#(and (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 62217#(and (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 62218#(and (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 62219#(and (= 0 |main_#t~mem20.offset|) (= 0 (select (select |#memory_int| |main_#t~mem20.base|) (+ 0 8)))), 62220#(and (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= 0 main_~x~0.offset)), 62221#(and (= 0 |main_#t~mem12|) (= main_~x~0.offset 0)), 62222#(and (= main_~x~0.offset 0) (not |main_#t~short14|)), 62200#true, 62201#false, 62202#(= 0 |main_#t~malloc0.offset|), 62203#(= main_~head~0.offset 0), 62204#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 62205#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 62206#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= 0 |main_#t~malloc6.offset|) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 62207#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1))] [2018-04-10 15:32:55,568 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 2 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:55,568 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-04-10 15:32:55,568 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-04-10 15:32:55,568 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2018-04-10 15:32:55,568 INFO L87 Difference]: Start difference. First operand 961 states and 1105 transitions. Second operand 23 states. [2018-04-10 15:32:56,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:56,690 INFO L93 Difference]: Finished difference Result 1303 states and 1480 transitions. [2018-04-10 15:32:56,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-04-10 15:32:56,690 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 72 [2018-04-10 15:32:56,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:56,692 INFO L225 Difference]: With dead ends: 1303 [2018-04-10 15:32:56,692 INFO L226 Difference]: Without dead ends: 1303 [2018-04-10 15:32:56,692 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=453, Invalid=2097, Unknown=0, NotChecked=0, Total=2550 [2018-04-10 15:32:56,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1303 states. [2018-04-10 15:32:56,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1303 to 877. [2018-04-10 15:32:56,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 877 states. [2018-04-10 15:32:56,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1011 transitions. [2018-04-10 15:32:56,696 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1011 transitions. Word has length 72 [2018-04-10 15:32:56,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:56,697 INFO L459 AbstractCegarLoop]: Abstraction has 877 states and 1011 transitions. [2018-04-10 15:32:56,697 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-04-10 15:32:56,697 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1011 transitions. [2018-04-10 15:32:56,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-04-10 15:32:56,697 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:56,697 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:56,697 INFO L408 AbstractCegarLoop]: === Iteration 60 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:56,697 INFO L82 PathProgramCache]: Analyzing trace with hash 1649161341, now seen corresponding path program 1 times [2018-04-10 15:32:56,698 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:56,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:56,707 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:32:57,387 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:57,387 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:32:57,387 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-04-10 15:32:57,388 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:32:57,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:57,388 INFO L182 omatonBuilderFactory]: Interpolants [64459#true, 64460#false, 64461#(= |main_#t~malloc0.offset| 0), 64462#(= main_~head~0.offset 0), 64463#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 64464#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 64465#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= 0 |main_#t~malloc6.offset|) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 64466#(and (= 1 (select |#valid| main_~x~0.base)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0)), 64467#(and (= 1 (select |#valid| main_~head~0.base)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (= 0 |main_#t~mem7.offset|) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 64468#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~head~0.base)) (= main_~x~0.offset 0) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 64469#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 64470#(and (not (= main_~x~0.base |main_#t~malloc9.base|)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| |main_#t~malloc9.base|)) (not (= |main_#t~malloc9.base| main_~head~0.base)) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 64471#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)) main_~head~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 64472#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= |main_#t~mem10.base| main_~head~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~mem10.base|)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 64473#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 64474#(and (= main_~head~0.offset |main_#t~malloc6.offset|) (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (or (= |main_#t~malloc6.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))))) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 64475#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset main_~x~0.offset) (or (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 64476#(and (or (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))) (= main_~head~0.offset |main_#t~mem7.offset|) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 64477#(or (and (= main_~x~0.offset main_~head~0.offset) (= main_~head~0.base main_~x~0.base)) (and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (or (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 64478#(or (and (= main_~x~0.offset main_~head~0.offset) (= main_~head~0.base main_~x~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= 1 (select |#valid| main_~x~0.base)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)))))), 64479#(or (and (= main_~x~0.offset main_~head~0.offset) (= main_~head~0.base main_~x~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)))))), 64480#(or (and (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))) (and (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 64481#(or (and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 64482#(or (and (= 0 |main_#t~mem20.offset|) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) (+ 0 4))))) (and (= 0 |main_#t~mem20.offset|) (= 0 |main_#t~mem20.base|))), 64483#(or (and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= 0 main_~x~0.offset)) (and (= 0 main_~x~0.base) (= 0 main_~x~0.offset))), 64484#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~x~0.offset 0)), 64485#(= 1 (select |#valid| |main_#t~mem15.base|))] [2018-04-10 15:32:57,388 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:32:57,388 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-04-10 15:32:57,388 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-04-10 15:32:57,388 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=610, Unknown=0, NotChecked=0, Total=702 [2018-04-10 15:32:57,388 INFO L87 Difference]: Start difference. First operand 877 states and 1011 transitions. Second operand 27 states. [2018-04-10 15:32:59,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:32:59,485 INFO L93 Difference]: Finished difference Result 1187 states and 1359 transitions. [2018-04-10 15:32:59,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-04-10 15:32:59,486 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 75 [2018-04-10 15:32:59,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:32:59,487 INFO L225 Difference]: With dead ends: 1187 [2018-04-10 15:32:59,487 INFO L226 Difference]: Without dead ends: 1187 [2018-04-10 15:32:59,487 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1192 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=771, Invalid=3921, Unknown=0, NotChecked=0, Total=4692 [2018-04-10 15:32:59,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1187 states. [2018-04-10 15:32:59,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1187 to 948. [2018-04-10 15:32:59,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 948 states. [2018-04-10 15:32:59,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1095 transitions. [2018-04-10 15:32:59,492 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1095 transitions. Word has length 75 [2018-04-10 15:32:59,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:32:59,492 INFO L459 AbstractCegarLoop]: Abstraction has 948 states and 1095 transitions. [2018-04-10 15:32:59,492 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-04-10 15:32:59,492 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1095 transitions. [2018-04-10 15:32:59,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-04-10 15:32:59,492 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:32:59,493 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:32:59,493 INFO L408 AbstractCegarLoop]: === Iteration 61 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:32:59,493 INFO L82 PathProgramCache]: Analyzing trace with hash 1649161342, now seen corresponding path program 1 times [2018-04-10 15:32:59,493 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:32:59,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:32:59,501 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:33:00,321 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:00,321 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:33:00,322 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-04-10 15:33:00,322 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:33:00,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:00,322 INFO L182 omatonBuilderFactory]: Interpolants [66705#true, 66707#(= |main_#t~malloc0.offset| 0), 66706#false, 66709#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 66708#(= main_~head~0.offset 0), 66711#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= |main_#t~malloc6.offset| 0)), 66710#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 66713#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (= 0 |main_#t~mem7.offset|) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 66712#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset) 0) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 66715#(and (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (< main_~x~0.offset (+ main_~head~0.offset 1)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (<= main_~head~0.offset main_~x~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 66714#(and (or (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.offset main_~x~0.offset))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 66717#(and (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))) 1) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (not (= main_~x~0.base main_~head~0.base)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 66716#(and (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base |main_#t~malloc9.base|)) (not (= main_~head~0.base |main_#t~malloc9.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~malloc9.offset|) (= 12 (select |#length| |main_#t~malloc9.base|)) (= (select |#valid| |main_#t~malloc9.base|) 1) (< main_~x~0.offset (+ main_~head~0.offset 1)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (<= main_~head~0.offset main_~x~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 66719#(and (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))) 1) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (not (= main_~x~0.base main_~head~0.base)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 66718#(and (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))) 1) (not (= |main_#t~mem10.base| main_~head~0.base)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (<= main_~head~0.offset main_~x~0.offset) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (not (= main_~x~0.base |main_#t~mem10.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 66721#(and (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 66720#(and (= main_~head~0.offset |main_#t~malloc6.offset|) (not (= main_~x~0.base |main_#t~malloc6.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (not (= main_~x~0.base main_~head~0.base)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= |main_#t~malloc6.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 66723#(or (and (= main_~x~0.offset main_~head~0.offset) (= main_~head~0.base main_~x~0.base)) (and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)))))), 66722#(and (= main_~head~0.offset |main_#t~mem7.offset|) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))), 66725#(or (and (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)))))), 66724#(or (and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))) (and (= main_~x~0.offset main_~head~0.offset) (= main_~head~0.base main_~x~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 66727#(or (and (= 0 |main_#t~mem20.offset|) (= |main_#t~mem20.offset| (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) (+ 0 4))) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) (+ 0 4))))) (and (= 0 |main_#t~mem20.offset|) (= 0 |main_#t~mem20.base|))), 66726#(or (and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 4)))))), 66729#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~x~0.offset 0) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4)))), 66728#(or (and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4))) (= 0 main_~x~0.offset)) (and (= 0 main_~x~0.base) (= 0 main_~x~0.offset))), 66731#(and (= 12 (select |#length| |main_#t~mem15.base|)) (= |main_#t~mem15.offset| 0)), 66730#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= |main_#t~mem13.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4))) (= |main_#t~mem13.offset| main_~x~0.offset) (= main_~x~0.offset 0))] [2018-04-10 15:33:00,322 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:00,322 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-04-10 15:33:00,322 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-04-10 15:33:00,323 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=604, Unknown=0, NotChecked=0, Total=702 [2018-04-10 15:33:00,323 INFO L87 Difference]: Start difference. First operand 948 states and 1095 transitions. Second operand 27 states. [2018-04-10 15:33:01,439 WARN L151 SmtUtils]: Spent 144ms on a formula simplification. DAG size of input: 69 DAG size of output 64 [2018-04-10 15:33:01,634 WARN L151 SmtUtils]: Spent 100ms on a formula simplification. DAG size of input: 82 DAG size of output 72 [2018-04-10 15:33:03,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:33:03,114 INFO L93 Difference]: Finished difference Result 1171 states and 1337 transitions. [2018-04-10 15:33:03,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-04-10 15:33:03,114 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 75 [2018-04-10 15:33:03,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:33:03,116 INFO L225 Difference]: With dead ends: 1171 [2018-04-10 15:33:03,116 INFO L226 Difference]: Without dead ends: 1171 [2018-04-10 15:33:03,116 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1005 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=677, Invalid=3355, Unknown=0, NotChecked=0, Total=4032 [2018-04-10 15:33:03,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1171 states. [2018-04-10 15:33:03,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1171 to 948. [2018-04-10 15:33:03,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 948 states. [2018-04-10 15:33:03,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1093 transitions. [2018-04-10 15:33:03,124 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1093 transitions. Word has length 75 [2018-04-10 15:33:03,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:33:03,125 INFO L459 AbstractCegarLoop]: Abstraction has 948 states and 1093 transitions. [2018-04-10 15:33:03,125 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-04-10 15:33:03,125 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1093 transitions. [2018-04-10 15:33:03,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-04-10 15:33:03,126 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:33:03,126 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:33:03,126 INFO L408 AbstractCegarLoop]: === Iteration 62 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:33:03,126 INFO L82 PathProgramCache]: Analyzing trace with hash 1847685763, now seen corresponding path program 2 times [2018-04-10 15:33:03,127 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:33:03,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:33:03,139 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:33:03,949 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:03,949 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:33:03,949 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2018-04-10 15:33:03,950 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:33:03,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:03,950 INFO L182 omatonBuilderFactory]: Interpolants [68929#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 68928#(= main_~head~0.offset 0), 68931#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) 0) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 68930#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) 0) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 68933#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) 0) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 68932#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= 0 |main_#t~malloc6.offset|) (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) 0) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 68935#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (or (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) 0) (not (= main_~head~0.offset main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 68934#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) 0) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (= 0 |main_#t~mem7.offset|) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 68937#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 68936#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) 0) (= 1 (select |#valid| main_~x~0.base)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 68939#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 68938#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc6.base|)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (not (= main_~x~0.base main_~head~0.base)) (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 68941#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 68940#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|)) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 68943#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (or (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= |main_#t~malloc9.base| main_~head~0.base)) (= |main_#t~malloc9.offset| main_~head~0.offset) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 68942#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 68945#(and (or (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (and (= |main_#t~mem10.offset| main_~head~0.offset) (= |main_#t~mem10.base| main_~head~0.base))) (= main_~head~0.offset 0) (or (and (not (= |main_#t~mem10.base| main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (= |main_#t~mem10.offset| main_~head~0.offset) (= |main_#t~mem10.base| main_~head~0.base)))), 68944#(and (or (= (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)) main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4)) main_~head~0.offset) (not (= main_~head~0.base main_~x~0.base)) (= main_~head~0.offset 0)), 68947#(and (or (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 8))) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 main_~x~0.offset)), 68946#(and (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (or (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 68949#(and (= main_~x~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (or |main_#t~short14| (and (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 8))) (not (= 2 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))))) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 68948#(and (or (and (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 8))) (= |main_#t~mem12| (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 68951#(and (or (= 0 |main_#t~mem20.base|) (not (= 2 (select (select |#memory_int| |main_#t~mem20.base|) (+ 0 8))))) (= 0 |main_#t~mem20.offset|)), 68950#(and (= main_~x~0.offset 0) (or (and (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 8))) (not (= 2 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))))) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 68953#(and (= main_~x~0.offset 0) (not (= 2 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))))), 68952#(and (or (= 0 main_~x~0.base) (not (= 2 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))))) (= 0 main_~x~0.offset)), 68955#(and (= main_~x~0.offset 0) (not |main_#t~short14|)), 68954#(and (not (= 2 |main_#t~mem12|)) (= main_~x~0.offset 0)), 68925#true, 68927#(= 0 |main_#t~malloc0.offset|), 68926#false] [2018-04-10 15:33:03,950 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:03,950 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-04-10 15:33:03,950 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-04-10 15:33:03,950 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=820, Unknown=0, NotChecked=0, Total=930 [2018-04-10 15:33:03,951 INFO L87 Difference]: Start difference. First operand 948 states and 1093 transitions. Second operand 31 states. [2018-04-10 15:33:06,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:33:06,236 INFO L93 Difference]: Finished difference Result 1415 states and 1599 transitions. [2018-04-10 15:33:06,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-04-10 15:33:06,237 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 75 [2018-04-10 15:33:06,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:33:06,239 INFO L225 Difference]: With dead ends: 1415 [2018-04-10 15:33:06,239 INFO L226 Difference]: Without dead ends: 1415 [2018-04-10 15:33:06,239 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1400 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1008, Invalid=4692, Unknown=0, NotChecked=0, Total=5700 [2018-04-10 15:33:06,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1415 states. [2018-04-10 15:33:06,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1415 to 978. [2018-04-10 15:33:06,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 978 states. [2018-04-10 15:33:06,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1127 transitions. [2018-04-10 15:33:06,249 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1127 transitions. Word has length 75 [2018-04-10 15:33:06,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:33:06,249 INFO L459 AbstractCegarLoop]: Abstraction has 978 states and 1127 transitions. [2018-04-10 15:33:06,249 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-04-10 15:33:06,250 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1127 transitions. [2018-04-10 15:33:06,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-04-10 15:33:06,250 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:33:06,251 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:33:06,251 INFO L408 AbstractCegarLoop]: === Iteration 63 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:33:06,251 INFO L82 PathProgramCache]: Analyzing trace with hash -936475781, now seen corresponding path program 1 times [2018-04-10 15:33:06,251 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:33:06,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:33:06,265 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:33:06,913 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:06,914 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:33:06,914 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-04-10 15:33:06,914 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:33:06,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:06,914 INFO L182 omatonBuilderFactory]: Interpolants [71439#true, 71441#(= 0 |main_#t~malloc0.offset|), 71440#false, 71443#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 71442#(= main_~head~0.offset 0), 71445#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= 0 |main_#t~malloc6.offset|) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 71444#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 71447#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (= 0 |main_#t~mem7.offset|) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 71446#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 71449#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 71448#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 71451#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (not (= main_~head~0.base |main_#t~malloc6.base|)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (not (= main_~x~0.base main_~head~0.base)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 71450#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 71453#(and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|)) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 71452#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 1 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 71455#(and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 71454#(and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 71457#(and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4)) main_~head~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 71456#(and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= |main_#t~malloc9.offset| main_~head~0.offset) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 71459#(or (and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 71458#(or (and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= |main_#t~mem10.base| main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (= |main_#t~mem10.offset| main_~head~0.offset) (= |main_#t~mem10.base| main_~head~0.base))), 71461#(or (and (= 0 |main_#t~mem20.offset|) (= 1 (select (select |#memory_int| |main_#t~mem20.base|) (+ 0 8)))) (and (= 0 |main_#t~mem20.offset|) (= 0 |main_#t~mem20.base|))), 71460#(or (and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 71463#(and (= 1 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= main_~x~0.offset 0)), 71462#(or (and (= 1 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= 0 main_~x~0.offset)) (and (= 0 main_~x~0.base) (= 0 main_~x~0.offset))), 71465#(and (= main_~x~0.offset 0) (not |main_#t~short14|)), 71464#(and (= main_~x~0.offset 0) (= 1 |main_#t~mem12|))] [2018-04-10 15:33:06,914 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:06,914 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-04-10 15:33:06,915 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-04-10 15:33:06,915 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=606, Unknown=0, NotChecked=0, Total=702 [2018-04-10 15:33:06,915 INFO L87 Difference]: Start difference. First operand 978 states and 1127 transitions. Second operand 27 states. [2018-04-10 15:33:09,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:33:09,070 INFO L93 Difference]: Finished difference Result 1445 states and 1649 transitions. [2018-04-10 15:33:09,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-04-10 15:33:09,070 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 75 [2018-04-10 15:33:09,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:33:09,072 INFO L225 Difference]: With dead ends: 1445 [2018-04-10 15:33:09,072 INFO L226 Difference]: Without dead ends: 1445 [2018-04-10 15:33:09,072 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1097 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=702, Invalid=3854, Unknown=0, NotChecked=0, Total=4556 [2018-04-10 15:33:09,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2018-04-10 15:33:09,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 994. [2018-04-10 15:33:09,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 994 states. [2018-04-10 15:33:09,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1145 transitions. [2018-04-10 15:33:09,077 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1145 transitions. Word has length 75 [2018-04-10 15:33:09,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:33:09,077 INFO L459 AbstractCegarLoop]: Abstraction has 994 states and 1145 transitions. [2018-04-10 15:33:09,077 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-04-10 15:33:09,077 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1145 transitions. [2018-04-10 15:33:09,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-04-10 15:33:09,077 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:33:09,078 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:33:09,078 INFO L408 AbstractCegarLoop]: === Iteration 64 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:33:09,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1889628539, now seen corresponding path program 1 times [2018-04-10 15:33:09,078 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:33:09,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:33:09,086 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:33:09,802 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:09,802 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:33:09,802 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-04-10 15:33:09,802 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:33:09,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:09,802 INFO L182 omatonBuilderFactory]: Interpolants [73987#true, 73989#(= 0 |main_#t~malloc0.offset|), 73988#false, 73991#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 73990#(= main_~head~0.offset 0), 73993#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= 0 |main_#t~malloc6.offset|) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 73992#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 73995#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (= 0 |main_#t~mem7.offset|) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 73994#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 73997#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 73996#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 73999#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc6.base|)) (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (not (= main_~x~0.base main_~head~0.base)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 73998#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 74001#(and (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|)) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 74000#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 74003#(and (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 74002#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 74005#(and (or (= (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)) main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4)) main_~head~0.offset) (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= main_~head~0.offset 0)), 74004#(and (or (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= |main_#t~malloc9.base| main_~head~0.base)) (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= |main_#t~malloc9.offset| main_~head~0.offset) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 74007#(and (or (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8)))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 74006#(and (or (and (= |main_#t~mem10.offset| main_~head~0.offset) (= |main_#t~mem10.base| main_~head~0.base)) (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8)))) (= main_~head~0.offset 0) (or (and (not (= |main_#t~mem10.base| main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (= |main_#t~mem10.offset| main_~head~0.offset) (= |main_#t~mem10.base| main_~head~0.base)))), 74009#(and (= 0 |main_#t~mem20.offset|) (or (= 0 |main_#t~mem20.base|) (= 0 (select (select |#memory_int| |main_#t~mem20.base|) (+ 0 8))))), 74008#(and (or (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 8))) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 74011#(and (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= main_~x~0.offset 0)), 74010#(and (or (= 0 main_~x~0.base) (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))) (= 0 main_~x~0.offset)), 74013#(and (= main_~x~0.offset 0) (not |main_#t~short14|)), 74012#(and (= 0 |main_#t~mem12|) (= main_~x~0.offset 0))] [2018-04-10 15:33:09,802 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:09,803 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-04-10 15:33:09,803 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-04-10 15:33:09,803 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=607, Unknown=0, NotChecked=0, Total=702 [2018-04-10 15:33:09,803 INFO L87 Difference]: Start difference. First operand 994 states and 1145 transitions. Second operand 27 states. [2018-04-10 15:33:11,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:33:11,534 INFO L93 Difference]: Finished difference Result 1416 states and 1612 transitions. [2018-04-10 15:33:11,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-04-10 15:33:11,534 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 75 [2018-04-10 15:33:11,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:33:11,536 INFO L225 Difference]: With dead ends: 1416 [2018-04-10 15:33:11,536 INFO L226 Difference]: Without dead ends: 1416 [2018-04-10 15:33:11,537 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1071 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=701, Invalid=3855, Unknown=0, NotChecked=0, Total=4556 [2018-04-10 15:33:11,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1416 states. [2018-04-10 15:33:11,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1416 to 915. [2018-04-10 15:33:11,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 915 states. [2018-04-10 15:33:11,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1051 transitions. [2018-04-10 15:33:11,546 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1051 transitions. Word has length 75 [2018-04-10 15:33:11,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:33:11,546 INFO L459 AbstractCegarLoop]: Abstraction has 915 states and 1051 transitions. [2018-04-10 15:33:11,546 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-04-10 15:33:11,546 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1051 transitions. [2018-04-10 15:33:11,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-04-10 15:33:11,547 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:33:11,547 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:33:11,548 INFO L408 AbstractCegarLoop]: === Iteration 65 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:33:11,548 INFO L82 PathProgramCache]: Analyzing trace with hash 298900318, now seen corresponding path program 1 times [2018-04-10 15:33:11,548 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:33:11,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:33:11,558 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:33:11,723 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:11,723 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:33:11,723 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-04-10 15:33:11,723 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:33:11,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:11,723 INFO L182 omatonBuilderFactory]: Interpolants [76427#true, 76429#(= (select |#valid| main_~head~0.base) 1), 76428#false, 76431#(and (not (= main_~head~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= 0 |main_#t~malloc6.base|))), 76430#(and (= main_~x~0.offset main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1) (= main_~x~0.base main_~head~0.base)), 76433#(and (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base |main_#t~mem7.base|))), 76432#(and (not (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 76435#(and (not (= main_~head~0.base |main_#t~malloc6.base|)) (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base))), 76434#(and (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base))), 76437#(and (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem7.base|))), 76436#(and (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 76439#(not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 76438#(and (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base))), 76441#(not (= 0 |main_#t~mem20.base|)), 76440#(not (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 76442#(not (= 0 main_~x~0.base))] [2018-04-10 15:33:11,723 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:11,724 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-10 15:33:11,724 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-10 15:33:11,724 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2018-04-10 15:33:11,724 INFO L87 Difference]: Start difference. First operand 915 states and 1051 transitions. Second operand 16 states. [2018-04-10 15:33:12,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:33:12,210 INFO L93 Difference]: Finished difference Result 1247 states and 1427 transitions. [2018-04-10 15:33:12,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-10 15:33:12,210 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 76 [2018-04-10 15:33:12,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:33:12,211 INFO L225 Difference]: With dead ends: 1247 [2018-04-10 15:33:12,212 INFO L226 Difference]: Without dead ends: 1247 [2018-04-10 15:33:12,212 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=145, Invalid=557, Unknown=0, NotChecked=0, Total=702 [2018-04-10 15:33:12,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1247 states. [2018-04-10 15:33:12,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1247 to 1041. [2018-04-10 15:33:12,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1041 states. [2018-04-10 15:33:12,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1191 transitions. [2018-04-10 15:33:12,218 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1191 transitions. Word has length 76 [2018-04-10 15:33:12,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:33:12,218 INFO L459 AbstractCegarLoop]: Abstraction has 1041 states and 1191 transitions. [2018-04-10 15:33:12,218 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-10 15:33:12,218 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1191 transitions. [2018-04-10 15:33:12,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-04-10 15:33:12,219 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:33:12,219 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:33:12,219 INFO L408 AbstractCegarLoop]: === Iteration 66 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:33:12,219 INFO L82 PathProgramCache]: Analyzing trace with hash -1294545116, now seen corresponding path program 4 times [2018-04-10 15:33:12,220 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:33:12,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:33:12,226 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:33:12,448 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:12,448 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:33:12,448 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-04-10 15:33:12,448 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:33:12,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:12,449 INFO L182 omatonBuilderFactory]: Interpolants [78753#true, 78755#(= 1 (select |#valid| main_~head~0.base)), 78754#false, 78757#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 78756#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 78759#(and (= (select |#valid| main_~head~0.base) 1) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem7.base|))), 78758#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 78761#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc6.base|)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base))), 78760#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base))), 78763#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base |main_#t~mem7.base|))), 78762#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 78765#(and (or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~malloc6.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~malloc6.base|)) (not (= main_~x~0.base main_~head~0.base))), 78764#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base))), 78767#(and (or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem7.base|))), 78766#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (or (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))))), 78769#(and (= 1 (select |#valid| main_~x~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base))), 78768#(and (or (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))) (not (= main_~x~0.base main_~head~0.base))), 78771#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 78770#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base))), 78773#(= 1 (select |#valid| |main_#t~mem20.base|)), 78772#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 78774#(= 1 (select |#valid| main_~x~0.base))] [2018-04-10 15:33:12,449 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:12,449 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-04-10 15:33:12,449 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-04-10 15:33:12,449 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2018-04-10 15:33:12,449 INFO L87 Difference]: Start difference. First operand 1041 states and 1191 transitions. Second operand 22 states. [2018-04-10 15:33:13,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:33:13,188 INFO L93 Difference]: Finished difference Result 1188 states and 1355 transitions. [2018-04-10 15:33:13,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-04-10 15:33:13,188 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 77 [2018-04-10 15:33:13,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:33:13,189 INFO L225 Difference]: With dead ends: 1188 [2018-04-10 15:33:13,189 INFO L226 Difference]: Without dead ends: 1188 [2018-04-10 15:33:13,189 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=319, Invalid=1241, Unknown=0, NotChecked=0, Total=1560 [2018-04-10 15:33:13,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1188 states. [2018-04-10 15:33:13,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1188 to 1045. [2018-04-10 15:33:13,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1045 states. [2018-04-10 15:33:13,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1197 transitions. [2018-04-10 15:33:13,194 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1197 transitions. Word has length 77 [2018-04-10 15:33:13,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:33:13,194 INFO L459 AbstractCegarLoop]: Abstraction has 1045 states and 1197 transitions. [2018-04-10 15:33:13,194 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-04-10 15:33:13,194 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1197 transitions. [2018-04-10 15:33:13,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-04-10 15:33:13,195 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:33:13,195 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:33:13,195 INFO L408 AbstractCegarLoop]: === Iteration 67 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:33:13,195 INFO L82 PathProgramCache]: Analyzing trace with hash -1294545115, now seen corresponding path program 3 times [2018-04-10 15:33:13,195 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:33:13,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:33:13,202 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:33:13,565 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:13,565 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:33:13,565 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-04-10 15:33:13,565 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:33:13,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:13,566 INFO L182 omatonBuilderFactory]: Interpolants [81057#(and (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 81056#(and (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~malloc6.base|)) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 81059#(and (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 81058#(and (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 81061#(and (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 81060#(and (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 81063#(and (<= 12 (select |#length| main_~x~0.base)) (= 0 main_~x~0.offset)), 81062#(and (= 0 |main_#t~mem20.offset|) (<= 12 (select |#length| |main_#t~mem20.base|))), 81045#false, 81044#true, 81047#(and (= main_~x~0.offset main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1) (= main_~x~0.base main_~head~0.base)), 81046#(= 1 (select |#valid| main_~head~0.base)), 81049#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 81048#(and (= 0 |main_#t~malloc6.offset|) (not (= main_~head~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset main_~head~0.offset) (= 12 (select |#length| |main_#t~malloc6.base|)) (= main_~x~0.base main_~head~0.base)), 81051#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| main_~x~0.base)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 81050#(and (= 12 (select |#length| |main_#t~mem7.base|)) (= (select |#valid| main_~head~0.base) 1) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 81053#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1) (= (select |#length| main_~x~0.base) 12)), 81052#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| main_~x~0.base)) (not (= main_~head~0.base |main_#t~malloc6.base|)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 81055#(and (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 81054#(and (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))] [2018-04-10 15:33:13,566 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:13,566 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-10 15:33:13,566 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-10 15:33:13,566 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2018-04-10 15:33:13,566 INFO L87 Difference]: Start difference. First operand 1045 states and 1197 transitions. Second operand 20 states. [2018-04-10 15:33:14,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:33:14,246 INFO L93 Difference]: Finished difference Result 1241 states and 1415 transitions. [2018-04-10 15:33:14,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-04-10 15:33:14,247 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 77 [2018-04-10 15:33:14,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:33:14,247 INFO L225 Difference]: With dead ends: 1241 [2018-04-10 15:33:14,248 INFO L226 Difference]: Without dead ends: 1241 [2018-04-10 15:33:14,248 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 5 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=237, Invalid=953, Unknown=0, NotChecked=0, Total=1190 [2018-04-10 15:33:14,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1241 states. [2018-04-10 15:33:14,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1241 to 1051. [2018-04-10 15:33:14,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1051 states. [2018-04-10 15:33:14,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1051 states to 1051 states and 1205 transitions. [2018-04-10 15:33:14,253 INFO L78 Accepts]: Start accepts. Automaton has 1051 states and 1205 transitions. Word has length 77 [2018-04-10 15:33:14,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:33:14,253 INFO L459 AbstractCegarLoop]: Abstraction has 1051 states and 1205 transitions. [2018-04-10 15:33:14,253 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-10 15:33:14,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1051 states and 1205 transitions. [2018-04-10 15:33:14,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-04-10 15:33:14,254 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:33:14,254 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:33:14,254 INFO L408 AbstractCegarLoop]: === Iteration 68 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:33:14,254 INFO L82 PathProgramCache]: Analyzing trace with hash -962522831, now seen corresponding path program 2 times [2018-04-10 15:33:14,255 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:33:14,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:33:14,273 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:33:15,021 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:15,022 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:33:15,022 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-04-10 15:33:15,022 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:33:15,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:15,022 INFO L182 omatonBuilderFactory]: Interpolants [83393#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 83392#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= 0 |main_#t~malloc6.offset|) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 83395#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 83394#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (= 0 |main_#t~mem7.offset|) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 83397#(and (not (= main_~x~0.base |main_#t~malloc9.base|)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc9.base|)) (= 1 (select |#valid| |main_#t~malloc9.base|)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 83396#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 83399#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= |main_#t~mem10.base| main_~head~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~head~0.offset main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base |main_#t~mem10.base|)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 83398#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~head~0.offset main_~x~0.offset) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 83401#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (or (= |main_#t~malloc6.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))))) (not (= main_~head~0.base |main_#t~malloc6.base|)) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 83400#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~head~0.offset main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 83403#(and (or (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|)) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 83402#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (or (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 83405#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~malloc9.base|)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~malloc9.offset| main_~head~0.offset) (not (= main_~x~0.base main_~head~0.base)) (or (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 83404#(and (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (or (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 83407#(or (and (not (= |main_#t~mem10.base| main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)))) (not (= |main_#t~mem10.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))) (and (= |main_#t~mem10.offset| main_~head~0.offset) (= |main_#t~mem10.base| main_~head~0.base))), 83406#(and (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4)) main_~head~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))), 83409#(or (and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 83408#(or (and (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))) (and (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 83411#(or (and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= 0 main_~x~0.offset)) (and (= 0 main_~x~0.base) (= 0 main_~x~0.offset))), 83410#(or (and (= 0 |main_#t~mem20.offset|) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) (+ 0 4))))) (and (= 0 |main_#t~mem20.offset|) (= 0 |main_#t~mem20.base|))), 83413#(= 1 (select |#valid| |main_#t~mem15.base|)), 83412#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~x~0.offset 0)), 83387#false, 83386#true, 83389#(= main_~head~0.offset 0), 83388#(= 0 |main_#t~malloc0.offset|), 83391#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 83390#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0))] [2018-04-10 15:33:15,022 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:15,022 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-04-10 15:33:15,022 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-04-10 15:33:15,023 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=654, Unknown=0, NotChecked=0, Total=756 [2018-04-10 15:33:15,023 INFO L87 Difference]: Start difference. First operand 1051 states and 1205 transitions. Second operand 28 states. [2018-04-10 15:33:17,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:33:17,434 INFO L93 Difference]: Finished difference Result 1386 states and 1591 transitions. [2018-04-10 15:33:17,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2018-04-10 15:33:17,434 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 78 [2018-04-10 15:33:17,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:33:17,435 INFO L225 Difference]: With dead ends: 1386 [2018-04-10 15:33:17,435 INFO L226 Difference]: Without dead ends: 1386 [2018-04-10 15:33:17,435 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1220 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=761, Invalid=4209, Unknown=0, NotChecked=0, Total=4970 [2018-04-10 15:33:17,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1386 states. [2018-04-10 15:33:17,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1386 to 1061. [2018-04-10 15:33:17,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1061 states. [2018-04-10 15:33:17,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1216 transitions. [2018-04-10 15:33:17,441 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 1216 transitions. Word has length 78 [2018-04-10 15:33:17,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:33:17,441 INFO L459 AbstractCegarLoop]: Abstraction has 1061 states and 1216 transitions. [2018-04-10 15:33:17,441 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-04-10 15:33:17,441 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 1216 transitions. [2018-04-10 15:33:17,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-04-10 15:33:17,442 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:33:17,442 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:33:17,442 INFO L408 AbstractCegarLoop]: === Iteration 69 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:33:17,442 INFO L82 PathProgramCache]: Analyzing trace with hash -962522830, now seen corresponding path program 2 times [2018-04-10 15:33:17,443 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:33:17,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:33:17,455 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:33:18,369 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:18,369 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:33:18,369 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-04-10 15:33:18,369 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:33:18,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:18,370 INFO L182 omatonBuilderFactory]: Interpolants [85953#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= 0 |main_#t~malloc6.offset|) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 85952#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 85955#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (= 0 |main_#t~mem7.offset|) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 85954#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 85957#(and (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 85956#(and (or (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.offset main_~x~0.offset))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 85959#(and (= 0 main_~head~0.offset) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))) 1) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~head~0.offset main_~x~0.offset) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4))) (= (select |#valid| main_~x~0.base) 1)), 85958#(and (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0) (= 0 |main_#t~malloc9.offset|) (not (= main_~x~0.base |main_#t~malloc9.base|)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc9.base|)) (= 12 (select |#length| |main_#t~malloc9.base|)) (= main_~head~0.offset main_~x~0.offset) (= (select |#valid| |main_#t~malloc9.base|) 1) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 85961#(and (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))) 1) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~head~0.offset main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4)))), 85960#(and (= 0 main_~head~0.offset) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))) 1) (not (= |main_#t~mem10.base| main_~head~0.base)) (= main_~head~0.offset main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (not (= main_~x~0.base |main_#t~mem10.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4))) (= (select |#valid| main_~x~0.base) 1)), 85963#(and (= 0 main_~head~0.offset) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= (select |#valid| main_~x~0.base) 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4)))), 85962#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (not (= main_~head~0.base |main_#t~malloc6.base|)) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4))) (= |main_#t~malloc6.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 85965#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))), 85964#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|)) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))), 85967#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4)) main_~head~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))), 85966#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~malloc9.base|)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~malloc9.offset| main_~head~0.offset) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))), 85969#(or (and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))) (and (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 85968#(or (and (= |main_#t~mem10.base| main_~head~0.base) (or (and (not (= |main_#t~mem10.base| main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (= |main_#t~mem10.offset| main_~head~0.offset) (= |main_#t~mem10.base| main_~head~0.base)))) (and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= main_~head~0.offset 0) (or (and (not (= |main_#t~mem10.base| main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (= |main_#t~mem10.offset| main_~head~0.offset) (= |main_#t~mem10.base| main_~head~0.base))) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)))) (not (= |main_#t~mem10.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))))), 85971#(or (and (= 0 |main_#t~mem20.offset|) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) (+ 0 4)))) (and (= 0 |main_#t~mem20.offset|) (= 0 |main_#t~mem20.base|))), 85970#(or (and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 4)))))), 85973#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~x~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4)))), 85972#(or (and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4))) (= 0 main_~x~0.offset)) (and (= 0 main_~x~0.base) (= 0 main_~x~0.offset))), 85974#(and (= 12 (select |#length| |main_#t~mem15.base|)) (= |main_#t~mem15.offset| 0)), 85947#true, 85949#(= 0 |main_#t~malloc0.offset|), 85948#false, 85951#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 85950#(= main_~head~0.offset 0)] [2018-04-10 15:33:18,370 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:18,370 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-04-10 15:33:18,370 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-04-10 15:33:18,370 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=644, Unknown=0, NotChecked=0, Total=756 [2018-04-10 15:33:18,370 INFO L87 Difference]: Start difference. First operand 1061 states and 1216 transitions. Second operand 28 states. [2018-04-10 15:33:20,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:33:20,761 INFO L93 Difference]: Finished difference Result 1330 states and 1526 transitions. [2018-04-10 15:33:20,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-04-10 15:33:20,761 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 78 [2018-04-10 15:33:20,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:33:20,762 INFO L225 Difference]: With dead ends: 1330 [2018-04-10 15:33:20,762 INFO L226 Difference]: Without dead ends: 1330 [2018-04-10 15:33:20,763 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 960 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=661, Invalid=3371, Unknown=0, NotChecked=0, Total=4032 [2018-04-10 15:33:20,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1330 states. [2018-04-10 15:33:20,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1330 to 1029. [2018-04-10 15:33:20,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1029 states. [2018-04-10 15:33:20,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1029 states to 1029 states and 1177 transitions. [2018-04-10 15:33:20,769 INFO L78 Accepts]: Start accepts. Automaton has 1029 states and 1177 transitions. Word has length 78 [2018-04-10 15:33:20,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:33:20,769 INFO L459 AbstractCegarLoop]: Abstraction has 1029 states and 1177 transitions. [2018-04-10 15:33:20,769 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-04-10 15:33:20,769 INFO L276 IsEmpty]: Start isEmpty. Operand 1029 states and 1177 transitions. [2018-04-10 15:33:20,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-04-10 15:33:20,769 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:33:20,770 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:33:20,770 INFO L408 AbstractCegarLoop]: === Iteration 70 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:33:20,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1500841335, now seen corresponding path program 1 times [2018-04-10 15:33:20,770 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:33:20,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:33:20,775 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:33:21,007 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:21,007 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:33:21,007 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-04-10 15:33:21,007 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:33:21,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:21,008 INFO L182 omatonBuilderFactory]: Interpolants [88417#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.offset main_~head~0.offset) (not (= 0 main_~head~0.base)) (= main_~x~0.base main_~head~0.base)), 88416#(and (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (not (= 0 main_~head~0.base))), 88419#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= 0 main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~x~0.offset))), 88418#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem20.base|) (= |main_#t~mem20.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) |main_#t~mem20.offset|)) (not (= 0 main_~head~0.base))), 88421#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 main_~head~0.base)) (or (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem20.base|) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))))), 88420#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (not (= 0 main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~x~0.offset))), 88423#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 88422#(and (or (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~x~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 main_~head~0.base))), 88425#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 88424#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) main_~x~0.base))), 88427#(and (= 1 (select |#valid| main_~x~0.base)) (not (= main_~head~0.base main_~x~0.base))), 88426#(and (= 1 (select |#valid| |main_#t~mem21.base|)) (not (= main_~head~0.base |main_#t~mem21.base|))), 88428#(= 1 (select |#valid| main_~x~0.base)), 88407#false, 88406#true, 88409#(and (= 0 main_~head~0.offset) (not (= 0 main_~head~0.base))), 88408#(and (not (= 0 |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|)), 88411#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (not (= 0 main_~head~0.base)) (= main_~x~0.base main_~head~0.base)), 88410#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base)) (not (= 0 main_~head~0.base))), 88413#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= 0 main_~head~0.base)) (= main_~x~0.base main_~head~0.base) (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset) main_~head~0.offset)), 88412#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= |main_#t~malloc6.offset| main_~head~0.offset) (= main_~x~0.offset main_~head~0.offset) (not (= 0 main_~head~0.base)) (= main_~x~0.base main_~head~0.base)), 88415#(and (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (not (= 0 main_~head~0.base)) (not (= main_~x~0.base main_~head~0.base))), 88414#(and (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (not (= 0 main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem7.base|)))] [2018-04-10 15:33:21,008 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:21,008 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-04-10 15:33:21,008 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-04-10 15:33:21,008 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2018-04-10 15:33:21,008 INFO L87 Difference]: Start difference. First operand 1029 states and 1177 transitions. Second operand 23 states. [2018-04-10 15:33:21,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:33:21,978 INFO L93 Difference]: Finished difference Result 1090 states and 1236 transitions. [2018-04-10 15:33:21,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-04-10 15:33:21,978 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 78 [2018-04-10 15:33:21,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:33:21,979 INFO L225 Difference]: With dead ends: 1090 [2018-04-10 15:33:21,979 INFO L226 Difference]: Without dead ends: 1090 [2018-04-10 15:33:21,979 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=400, Invalid=1762, Unknown=0, NotChecked=0, Total=2162 [2018-04-10 15:33:21,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1090 states. [2018-04-10 15:33:21,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1090 to 1042. [2018-04-10 15:33:21,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1042 states. [2018-04-10 15:33:21,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 1192 transitions. [2018-04-10 15:33:21,984 INFO L78 Accepts]: Start accepts. Automaton has 1042 states and 1192 transitions. Word has length 78 [2018-04-10 15:33:21,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:33:21,984 INFO L459 AbstractCegarLoop]: Abstraction has 1042 states and 1192 transitions. [2018-04-10 15:33:21,984 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-04-10 15:33:21,984 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states and 1192 transitions. [2018-04-10 15:33:21,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-04-10 15:33:21,985 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:33:21,985 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:33:21,985 INFO L408 AbstractCegarLoop]: === Iteration 71 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:33:21,985 INFO L82 PathProgramCache]: Analyzing trace with hash -1500841334, now seen corresponding path program 1 times [2018-04-10 15:33:21,986 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:33:21,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:33:21,991 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:33:22,058 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-10 15:33:22,058 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:33:22,058 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-04-10 15:33:22,058 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:33:22,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:22,058 INFO L182 omatonBuilderFactory]: Interpolants [90609#true, 90611#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 90610#false, 90613#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 90612#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem20.base|) (= |main_#t~mem20.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 90615#(and (<= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (<= (+ (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 12) (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 90614#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (<= (+ main_~x~0.offset 12) (select |#length| main_~x~0.base))), 90617#(and (<= 0 |main_#t~mem21.offset|) (<= (+ |main_#t~mem21.offset| 12) (select |#length| |main_#t~mem21.base|))), 90616#(and (<= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (<= (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 12) (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 90618#(and (<= (+ main_~x~0.offset 12) (select |#length| main_~x~0.base)) (<= 0 main_~x~0.offset))] [2018-04-10 15:33:22,058 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-10 15:33:22,059 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-10 15:33:22,059 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-10 15:33:22,059 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-04-10 15:33:22,059 INFO L87 Difference]: Start difference. First operand 1042 states and 1192 transitions. Second operand 10 states. [2018-04-10 15:33:22,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:33:22,355 INFO L93 Difference]: Finished difference Result 1168 states and 1351 transitions. [2018-04-10 15:33:22,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-10 15:33:22,355 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 78 [2018-04-10 15:33:22,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:33:22,356 INFO L225 Difference]: With dead ends: 1168 [2018-04-10 15:33:22,356 INFO L226 Difference]: Without dead ends: 1168 [2018-04-10 15:33:22,356 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2018-04-10 15:33:22,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2018-04-10 15:33:22,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 1048. [2018-04-10 15:33:22,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1048 states. [2018-04-10 15:33:22,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1048 states to 1048 states and 1200 transitions. [2018-04-10 15:33:22,360 INFO L78 Accepts]: Start accepts. Automaton has 1048 states and 1200 transitions. Word has length 78 [2018-04-10 15:33:22,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:33:22,360 INFO L459 AbstractCegarLoop]: Abstraction has 1048 states and 1200 transitions. [2018-04-10 15:33:22,360 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-10 15:33:22,360 INFO L276 IsEmpty]: Start isEmpty. Operand 1048 states and 1200 transitions. [2018-04-10 15:33:22,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-04-10 15:33:22,361 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:33:22,361 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:33:22,361 INFO L408 AbstractCegarLoop]: === Iteration 72 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:33:22,361 INFO L82 PathProgramCache]: Analyzing trace with hash -1667977262, now seen corresponding path program 1 times [2018-04-10 15:33:22,362 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:33:22,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:33:22,370 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:33:22,551 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:22,551 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:33:22,551 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-04-10 15:33:22,551 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:33:22,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:22,552 INFO L182 omatonBuilderFactory]: Interpolants [92865#(not (= 0 main_~x~0.base)), 92864#(not (= 0 |main_#t~mem20.base|)), 92847#true, 92849#(= (select |#valid| main_~head~0.base) 1), 92848#false, 92851#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= 0 |main_#t~malloc6.base|))), 92850#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 92853#(and (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base |main_#t~mem7.base|))), 92852#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 92855#(and (not (= main_~head~0.base |main_#t~malloc9.base|)) (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base))), 92854#(and (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base))), 92857#(and (not (= |main_#t~mem10.base| main_~head~0.base)) (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base))), 92856#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base))), 92859#(and (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 92858#(and (not (= main_~head~0.base |main_#t~malloc6.base|)) (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base))), 92861#(and (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base))), 92860#(and (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem7.base|))), 92863#(not (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 92862#(not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))] [2018-04-10 15:33:22,552 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:22,552 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-04-10 15:33:22,552 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-04-10 15:33:22,552 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2018-04-10 15:33:22,552 INFO L87 Difference]: Start difference. First operand 1048 states and 1200 transitions. Second operand 19 states. [2018-04-10 15:33:23,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:33:23,167 INFO L93 Difference]: Finished difference Result 1160 states and 1334 transitions. [2018-04-10 15:33:23,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-04-10 15:33:23,167 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 79 [2018-04-10 15:33:23,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:33:23,168 INFO L225 Difference]: With dead ends: 1160 [2018-04-10 15:33:23,168 INFO L226 Difference]: Without dead ends: 1160 [2018-04-10 15:33:23,168 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=297, Invalid=1185, Unknown=0, NotChecked=0, Total=1482 [2018-04-10 15:33:23,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2018-04-10 15:33:23,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 970. [2018-04-10 15:33:23,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 970 states. [2018-04-10 15:33:23,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 1107 transitions. [2018-04-10 15:33:23,172 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 1107 transitions. Word has length 79 [2018-04-10 15:33:23,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:33:23,172 INFO L459 AbstractCegarLoop]: Abstraction has 970 states and 1107 transitions. [2018-04-10 15:33:23,172 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-04-10 15:33:23,173 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 1107 transitions. [2018-04-10 15:33:23,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-04-10 15:33:23,173 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:33:23,173 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:33:23,173 INFO L408 AbstractCegarLoop]: === Iteration 73 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:33:23,173 INFO L82 PathProgramCache]: Analyzing trace with hash 718558075, now seen corresponding path program 2 times [2018-04-10 15:33:23,174 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:33:23,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:33:23,178 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:33:23,235 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-10 15:33:23,235 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:33:23,235 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-04-10 15:33:23,235 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:33:23,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:23,235 INFO L182 omatonBuilderFactory]: Interpolants [95041#(or (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 95040#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 95043#(or (not (= 0 |main_#t~mem21.offset|)) (not (= 0 |main_#t~mem21.base|))), 95042#(or (not (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 95044#(or (not (= 0 main_~x~0.offset)) (not (= 0 main_~x~0.base))), 95037#false, 95036#true, 95039#(and (= |main_#t~mem20.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem20.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 95038#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base))] [2018-04-10 15:33:23,236 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-10 15:33:23,236 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-10 15:33:23,236 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-10 15:33:23,236 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-04-10 15:33:23,236 INFO L87 Difference]: Start difference. First operand 970 states and 1107 transitions. Second operand 9 states. [2018-04-10 15:33:23,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:33:23,500 INFO L93 Difference]: Finished difference Result 1085 states and 1253 transitions. [2018-04-10 15:33:23,500 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-10 15:33:23,501 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2018-04-10 15:33:23,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:33:23,501 INFO L225 Difference]: With dead ends: 1085 [2018-04-10 15:33:23,501 INFO L226 Difference]: Without dead ends: 1085 [2018-04-10 15:33:23,501 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2018-04-10 15:33:23,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2018-04-10 15:33:23,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 970. [2018-04-10 15:33:23,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 970 states. [2018-04-10 15:33:23,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 1105 transitions. [2018-04-10 15:33:23,505 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 1105 transitions. Word has length 79 [2018-04-10 15:33:23,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:33:23,506 INFO L459 AbstractCegarLoop]: Abstraction has 970 states and 1105 transitions. [2018-04-10 15:33:23,506 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-10 15:33:23,506 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 1105 transitions. [2018-04-10 15:33:23,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-04-10 15:33:23,506 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:33:23,506 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:33:23,506 INFO L408 AbstractCegarLoop]: === Iteration 74 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:33:23,507 INFO L82 PathProgramCache]: Analyzing trace with hash -171959875, now seen corresponding path program 1 times [2018-04-10 15:33:23,507 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:33:23,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:33:23,513 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:33:23,709 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-10 15:33:23,709 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:33:23,709 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-04-10 15:33:23,709 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:33:23,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:23,709 INFO L182 omatonBuilderFactory]: Interpolants [97121#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= 0 main_~x~0.offset)), 97120#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 97123#(and (or (not |main_#t~short19|) (and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base))) (= main_~head~0.offset 0)), 97122#(and (= 1 (select |#valid| main_~x~0.base)) (= |main_#t~mem18.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 97125#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= main_~head~0.offset 0)), 97124#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 97127#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))), 97126#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ 0 4)))) (= 0 main_~x~0.offset)), 97128#(= 1 (select |#valid| |main_#t~mem23.base|)), 97115#false, 97114#true, 97117#(= main_~head~0.offset 0), 97116#(= 0 |main_#t~malloc0.offset|), 97119#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 97118#(and (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0))] [2018-04-10 15:33:23,709 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-10 15:33:23,709 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-10 15:33:23,709 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-10 15:33:23,710 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2018-04-10 15:33:23,710 INFO L87 Difference]: Start difference. First operand 970 states and 1105 transitions. Second operand 15 states. [2018-04-10 15:33:24,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:33:24,058 INFO L93 Difference]: Finished difference Result 1222 states and 1386 transitions. [2018-04-10 15:33:24,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-10 15:33:24,058 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 80 [2018-04-10 15:33:24,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:33:24,059 INFO L225 Difference]: With dead ends: 1222 [2018-04-10 15:33:24,059 INFO L226 Difference]: Without dead ends: 1222 [2018-04-10 15:33:24,059 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=158, Invalid=442, Unknown=0, NotChecked=0, Total=600 [2018-04-10 15:33:24,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1222 states. [2018-04-10 15:33:24,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1222 to 1193. [2018-04-10 15:33:24,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1193 states. [2018-04-10 15:33:24,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1368 transitions. [2018-04-10 15:33:24,064 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1368 transitions. Word has length 80 [2018-04-10 15:33:24,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:33:24,064 INFO L459 AbstractCegarLoop]: Abstraction has 1193 states and 1368 transitions. [2018-04-10 15:33:24,064 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-10 15:33:24,064 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1368 transitions. [2018-04-10 15:33:24,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-04-10 15:33:24,065 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:33:24,065 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:33:24,065 INFO L408 AbstractCegarLoop]: === Iteration 75 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:33:24,065 INFO L82 PathProgramCache]: Analyzing trace with hash -370574766, now seen corresponding path program 2 times [2018-04-10 15:33:24,066 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:33:24,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:33:24,073 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:33:24,488 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:24,489 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:33:24,489 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-04-10 15:33:24,489 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:33:24,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:24,489 INFO L182 omatonBuilderFactory]: Interpolants [99585#(or (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= 1 (select |#valid| main_~x~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)))), 99584#(or (and (or (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))) (not (= main_~x~0.base main_~head~0.base))) (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base))), 99587#(or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (and (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 99586#(or (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)))), 99589#(or (= 1 (select |#valid| |main_#t~mem20.base|)) (and (= 0 |main_#t~mem20.offset|) (= 0 |main_#t~mem20.base|))), 99588#(or (and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 99591#(= 1 (select |#valid| main_~x~0.base)), 99590#(or (= 1 (select |#valid| main_~x~0.base)) (and (= 0 main_~x~0.base) (= 0 main_~x~0.offset))), 99565#false, 99564#true, 99567#(= main_~head~0.offset 0), 99566#(= |main_#t~malloc0.offset| 0), 99569#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 99568#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 99571#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 99570#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 99573#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 99572#(and (= (select |#valid| main_~head~0.base) 1) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|))), 99575#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 99574#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc9.base|)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 99577#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc6.base|)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 99576#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= |main_#t~mem10.base| main_~head~0.base)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 99579#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|))), 99578#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0)), 99581#(and (or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~malloc6.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (or (= main_~head~0.offset |main_#t~malloc6.offset|) (not (= main_~head~0.base |main_#t~malloc6.base|)))), 99580#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 99583#(and (or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (or (= main_~head~0.offset |main_#t~mem7.offset|) (not (= main_~head~0.base |main_#t~mem7.base|)))), 99582#(and (or (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))) (or (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))))] [2018-04-10 15:33:24,489 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:24,489 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-04-10 15:33:24,489 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-04-10 15:33:24,490 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=650, Unknown=0, NotChecked=0, Total=756 [2018-04-10 15:33:24,490 INFO L87 Difference]: Start difference. First operand 1193 states and 1368 transitions. Second operand 28 states. [2018-04-10 15:33:26,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:33:26,105 INFO L93 Difference]: Finished difference Result 1694 states and 1971 transitions. [2018-04-10 15:33:26,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-04-10 15:33:26,106 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 80 [2018-04-10 15:33:26,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:33:26,107 INFO L225 Difference]: With dead ends: 1694 [2018-04-10 15:33:26,107 INFO L226 Difference]: Without dead ends: 1694 [2018-04-10 15:33:26,107 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1253 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1009, Invalid=3413, Unknown=0, NotChecked=0, Total=4422 [2018-04-10 15:33:26,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2018-04-10 15:33:26,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 1309. [2018-04-10 15:33:26,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1309 states. [2018-04-10 15:33:26,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1309 states to 1309 states and 1499 transitions. [2018-04-10 15:33:26,114 INFO L78 Accepts]: Start accepts. Automaton has 1309 states and 1499 transitions. Word has length 80 [2018-04-10 15:33:26,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:33:26,114 INFO L459 AbstractCegarLoop]: Abstraction has 1309 states and 1499 transitions. [2018-04-10 15:33:26,114 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-04-10 15:33:26,114 INFO L276 IsEmpty]: Start isEmpty. Operand 1309 states and 1499 transitions. [2018-04-10 15:33:26,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-04-10 15:33:26,115 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:33:26,115 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:33:26,115 INFO L408 AbstractCegarLoop]: === Iteration 76 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:33:26,115 INFO L82 PathProgramCache]: Analyzing trace with hash -370574765, now seen corresponding path program 3 times [2018-04-10 15:33:26,116 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:33:26,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:33:26,123 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:33:26,577 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:26,577 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:33:26,577 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-04-10 15:33:26,577 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:33:26,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:26,578 INFO L182 omatonBuilderFactory]: Interpolants [102689#(and (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~malloc6.base|)) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 102688#(and (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= (select |#valid| main_~head~0.base) 0)) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 102691#(and (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 102690#(and (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 102693#(and (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 102692#(and (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 102695#(and (= 0 |main_#t~mem20.offset|) (<= 12 (select |#length| |main_#t~mem20.base|))), 102694#(and (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 102696#(and (<= 12 (select |#length| main_~x~0.base)) (= 0 main_~x~0.offset)), 102673#true, 102675#(= 1 (select |#valid| main_~head~0.base)), 102674#false, 102677#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= 0 |main_#t~malloc6.offset|) (= main_~x~0.offset main_~head~0.offset) (= 12 (select |#length| |main_#t~malloc6.base|)) (= main_~x~0.base main_~head~0.base)), 102676#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 102679#(and (= 12 (select |#length| |main_#t~mem7.base|)) (= (select |#valid| main_~head~0.base) 1) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 102678#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 102681#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| main_~x~0.base)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 102680#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| main_~x~0.base)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 102683#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#length| main_~x~0.base) 12)), 102682#(and (not (= main_~x~0.base |main_#t~malloc9.base|)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| main_~x~0.base)) (not (= main_~head~0.base |main_#t~malloc9.base|)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 102685#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| main_~x~0.base)) (not (= main_~head~0.base |main_#t~malloc6.base|)) (not (= (select |#valid| main_~head~0.base) 0)) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 102684#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= |main_#t~mem10.base| main_~head~0.base)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#length| main_~x~0.base) 12)), 102687#(and (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= (select |#valid| main_~head~0.base) 0)) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 102686#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= (select |#valid| main_~head~0.base) 0)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= (select |#valid| main_~x~0.base) 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#length| main_~x~0.base) 12))] [2018-04-10 15:33:26,578 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:26,578 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-04-10 15:33:26,578 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-04-10 15:33:26,578 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=464, Unknown=0, NotChecked=0, Total=552 [2018-04-10 15:33:26,578 INFO L87 Difference]: Start difference. First operand 1309 states and 1499 transitions. Second operand 24 states. [2018-04-10 15:33:27,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:33:27,531 INFO L93 Difference]: Finished difference Result 1807 states and 2062 transitions. [2018-04-10 15:33:27,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-04-10 15:33:27,531 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 80 [2018-04-10 15:33:27,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:33:27,532 INFO L225 Difference]: With dead ends: 1807 [2018-04-10 15:33:27,532 INFO L226 Difference]: Without dead ends: 1807 [2018-04-10 15:33:27,533 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 6 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=423, Invalid=1833, Unknown=0, NotChecked=0, Total=2256 [2018-04-10 15:33:27,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1807 states. [2018-04-10 15:33:27,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1807 to 1402. [2018-04-10 15:33:27,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1402 states. [2018-04-10 15:33:27,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 1606 transitions. [2018-04-10 15:33:27,540 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 1606 transitions. Word has length 80 [2018-04-10 15:33:27,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:33:27,540 INFO L459 AbstractCegarLoop]: Abstraction has 1402 states and 1606 transitions. [2018-04-10 15:33:27,540 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-04-10 15:33:27,540 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 1606 transitions. [2018-04-10 15:33:27,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-04-10 15:33:27,541 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:33:27,541 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:33:27,541 INFO L408 AbstractCegarLoop]: === Iteration 77 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:33:27,541 INFO L82 PathProgramCache]: Analyzing trace with hash 800493898, now seen corresponding path program 1 times [2018-04-10 15:33:27,542 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:33:27,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:33:27,547 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:33:27,557 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-04-10 15:33:27,558 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 15:33:27,558 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-10 15:33:27,558 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:33:27,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:27,558 INFO L182 omatonBuilderFactory]: Interpolants [105955#false, 105954#true, 105957#(= 1 (select |#valid| main_~head~0.base)), 105956#(= main_~x~0.base main_~head~0.base)] [2018-04-10 15:33:27,558 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-04-10 15:33:27,558 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-10 15:33:27,558 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-10 15:33:27,558 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-10 15:33:27,559 INFO L87 Difference]: Start difference. First operand 1402 states and 1606 transitions. Second operand 4 states. [2018-04-10 15:33:27,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:33:27,619 INFO L93 Difference]: Finished difference Result 1414 states and 1617 transitions. [2018-04-10 15:33:27,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-10 15:33:27,619 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 80 [2018-04-10 15:33:27,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:33:27,620 INFO L225 Difference]: With dead ends: 1414 [2018-04-10 15:33:27,620 INFO L226 Difference]: Without dead ends: 1414 [2018-04-10 15:33:27,620 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-10 15:33:27,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1414 states. [2018-04-10 15:33:27,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1414 to 1401. [2018-04-10 15:33:27,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1401 states. [2018-04-10 15:33:27,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1401 states to 1401 states and 1605 transitions. [2018-04-10 15:33:27,626 INFO L78 Accepts]: Start accepts. Automaton has 1401 states and 1605 transitions. Word has length 80 [2018-04-10 15:33:27,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:33:27,626 INFO L459 AbstractCegarLoop]: Abstraction has 1401 states and 1605 transitions. [2018-04-10 15:33:27,626 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-10 15:33:27,626 INFO L276 IsEmpty]: Start isEmpty. Operand 1401 states and 1605 transitions. [2018-04-10 15:33:27,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-04-10 15:33:27,627 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:33:27,627 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:33:27,627 INFO L408 AbstractCegarLoop]: === Iteration 78 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:33:27,627 INFO L82 PathProgramCache]: Analyzing trace with hash 800493899, now seen corresponding path program 1 times [2018-04-10 15:33:27,627 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:33:27,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:33:27,632 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:33:27,699 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-10 15:33:27,699 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:33:27,699 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-04-10 15:33:27,699 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:33:27,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:27,699 INFO L182 omatonBuilderFactory]: Interpolants [108785#(<= (+ main_~x~0.offset 12) (select |#length| main_~x~0.base)), 108784#(<= (+ |main_#t~mem21.offset| 12) (select |#length| |main_#t~mem21.base|)), 108787#(and (<= (+ main_~head~0.offset 12) (select |#length| main_~head~0.base)) (<= 0 main_~head~0.offset)), 108786#(and (<= (+ main_~x~0.offset 12) (select |#length| main_~head~0.base)) (= main_~x~0.offset main_~head~0.offset)), 108777#false, 108776#true, 108779#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem20.base|) (= |main_#t~mem20.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 108778#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 108781#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (<= (+ main_~x~0.offset 12) (select |#length| main_~x~0.base))), 108780#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 108783#(<= (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 12) (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 108782#(<= (+ (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 12) (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))] [2018-04-10 15:33:27,699 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-10 15:33:27,699 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-10 15:33:27,700 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-10 15:33:27,700 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2018-04-10 15:33:27,700 INFO L87 Difference]: Start difference. First operand 1401 states and 1605 transitions. Second operand 12 states. [2018-04-10 15:33:28,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:33:28,022 INFO L93 Difference]: Finished difference Result 1598 states and 1860 transitions. [2018-04-10 15:33:28,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-10 15:33:28,022 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 80 [2018-04-10 15:33:28,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:33:28,023 INFO L225 Difference]: With dead ends: 1598 [2018-04-10 15:33:28,023 INFO L226 Difference]: Without dead ends: 1598 [2018-04-10 15:33:28,023 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2018-04-10 15:33:28,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1598 states. [2018-04-10 15:33:28,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1598 to 1405. [2018-04-10 15:33:28,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1405 states. [2018-04-10 15:33:28,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1405 states to 1405 states and 1610 transitions. [2018-04-10 15:33:28,029 INFO L78 Accepts]: Start accepts. Automaton has 1405 states and 1610 transitions. Word has length 80 [2018-04-10 15:33:28,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:33:28,029 INFO L459 AbstractCegarLoop]: Abstraction has 1405 states and 1610 transitions. [2018-04-10 15:33:28,029 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-10 15:33:28,029 INFO L276 IsEmpty]: Start isEmpty. Operand 1405 states and 1610 transitions. [2018-04-10 15:33:28,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-04-10 15:33:28,030 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:33:28,030 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:33:28,030 INFO L408 AbstractCegarLoop]: === Iteration 79 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:33:28,030 INFO L82 PathProgramCache]: Analyzing trace with hash -773320692, now seen corresponding path program 3 times [2018-04-10 15:33:28,031 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:33:28,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:33:28,038 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:33:28,410 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:28,410 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:33:28,410 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-04-10 15:33:28,410 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:33:28,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:28,410 INFO L182 omatonBuilderFactory]: Interpolants [111809#true, 111811#(= |main_#t~malloc0.offset| 0), 111810#false, 111813#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 111812#(= main_~head~0.offset 0), 111815#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 111814#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 111817#(and (= (select |#valid| main_~head~0.base) 1) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|))), 111816#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 111819#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc6.base|)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 111818#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 111821#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|))), 111820#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 111823#(and (not (= main_~head~0.base |main_#t~malloc9.base|)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 111822#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 111825#(and (not (= |main_#t~mem10.base| main_~head~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 111824#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 111827#(and (= main_~head~0.offset |main_#t~malloc6.offset|) (or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~malloc6.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base))), 111826#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 111829#(and (or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset |main_#t~mem7.offset|)), 111828#(and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (or (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))))), 111831#(or (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)))), 111830#(or (and (or (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))) (not (= main_~x~0.base main_~head~0.base))) (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base))), 111833#(or (and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 111832#(or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (and (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 111835#(or (= 1 (select |#valid| main_~x~0.base)) (and (= 0 main_~x~0.base) (= 0 main_~x~0.offset))), 111834#(or (= 1 (select |#valid| |main_#t~mem20.base|)) (and (= 0 |main_#t~mem20.offset|) (= 0 |main_#t~mem20.base|))), 111836#(= 1 (select |#valid| main_~x~0.base))] [2018-04-10 15:33:28,410 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:28,411 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-04-10 15:33:28,411 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-04-10 15:33:28,411 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=644, Unknown=0, NotChecked=0, Total=756 [2018-04-10 15:33:28,411 INFO L87 Difference]: Start difference. First operand 1405 states and 1610 transitions. Second operand 28 states. [2018-04-10 15:33:30,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:33:30,536 INFO L93 Difference]: Finished difference Result 1963 states and 2275 transitions. [2018-04-10 15:33:30,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2018-04-10 15:33:30,536 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 80 [2018-04-10 15:33:30,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:33:30,537 INFO L225 Difference]: With dead ends: 1963 [2018-04-10 15:33:30,537 INFO L226 Difference]: Without dead ends: 1963 [2018-04-10 15:33:30,538 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1804 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1416, Invalid=4746, Unknown=0, NotChecked=0, Total=6162 [2018-04-10 15:33:30,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1963 states. [2018-04-10 15:33:30,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1963 to 1495. [2018-04-10 15:33:30,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1495 states. [2018-04-10 15:33:30,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 1712 transitions. [2018-04-10 15:33:30,546 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 1712 transitions. Word has length 80 [2018-04-10 15:33:30,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:33:30,546 INFO L459 AbstractCegarLoop]: Abstraction has 1495 states and 1712 transitions. [2018-04-10 15:33:30,546 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-04-10 15:33:30,546 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 1712 transitions. [2018-04-10 15:33:30,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-04-10 15:33:30,547 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:33:30,547 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:33:30,547 INFO L408 AbstractCegarLoop]: === Iteration 80 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:33:30,547 INFO L82 PathProgramCache]: Analyzing trace with hash -773320691, now seen corresponding path program 4 times [2018-04-10 15:33:30,547 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:33:30,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:33:30,556 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:33:31,089 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:31,090 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:33:31,090 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-04-10 15:33:31,090 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:33:31,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:31,090 INFO L182 omatonBuilderFactory]: Interpolants [115397#true, 115399#(= |main_#t~malloc0.offset| 0), 115398#false, 115401#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 115400#(= main_~head~0.offset 0), 115403#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= 0 |main_#t~malloc6.offset|) (= main_~x~0.offset main_~head~0.offset) (= 12 (select |#length| |main_#t~malloc6.base|)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 115402#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 115405#(and (= 12 (select |#length| |main_#t~mem7.base|)) (= (select |#valid| main_~head~0.base) 1) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 115404#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 115407#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| main_~x~0.base)) (= 1 (select |#valid| main_~x~0.base)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 115406#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| main_~x~0.base)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 115409#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| main_~x~0.base)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 115408#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| main_~x~0.base)) (not (= main_~head~0.base |main_#t~malloc6.base|)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 115411#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 115410#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 115413#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 115412#(and (not (= main_~head~0.base |main_#t~malloc9.base|)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 115415#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 115414#(and (not (= |main_#t~mem10.base| main_~head~0.base)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 115417#(and (or (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))) (not (= main_~head~0.base main_~x~0.base)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 115416#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (or (= main_~head~0.offset |main_#t~malloc6.offset|) (not (= main_~head~0.base |main_#t~malloc6.base|))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 115419#(or (and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base))), 115418#(and (or (= main_~head~0.offset |main_#t~mem7.offset|) (not (= main_~head~0.base |main_#t~mem7.base|))) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 115421#(or (and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 115420#(or (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 115423#(or (and (= 0 |main_#t~mem20.offset|) (= 12 (select |#length| |main_#t~mem20.base|))) (and (= 0 |main_#t~mem20.offset|) (= 0 |main_#t~mem20.base|))), 115422#(or (and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 115425#(and (= 12 (select |#length| main_~x~0.base)) (= main_~x~0.offset 0)), 115424#(or (and (= 12 (select |#length| main_~x~0.base)) (= 0 main_~x~0.offset)) (and (= 0 main_~x~0.base) (= 0 main_~x~0.offset)))] [2018-04-10 15:33:31,090 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:31,090 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-04-10 15:33:31,090 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-04-10 15:33:31,090 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=677, Unknown=0, NotChecked=0, Total=812 [2018-04-10 15:33:31,091 INFO L87 Difference]: Start difference. First operand 1495 states and 1712 transitions. Second operand 29 states. [2018-04-10 15:33:33,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:33:33,675 INFO L93 Difference]: Finished difference Result 2022 states and 2349 transitions. [2018-04-10 15:33:33,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2018-04-10 15:33:33,675 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 80 [2018-04-10 15:33:33,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:33:33,677 INFO L225 Difference]: With dead ends: 2022 [2018-04-10 15:33:33,677 INFO L226 Difference]: Without dead ends: 2022 [2018-04-10 15:33:33,677 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1865 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1253, Invalid=5067, Unknown=0, NotChecked=0, Total=6320 [2018-04-10 15:33:33,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2022 states. [2018-04-10 15:33:33,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2022 to 1462. [2018-04-10 15:33:33,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1462 states. [2018-04-10 15:33:33,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 1682 transitions. [2018-04-10 15:33:33,684 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 1682 transitions. Word has length 80 [2018-04-10 15:33:33,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:33:33,685 INFO L459 AbstractCegarLoop]: Abstraction has 1462 states and 1682 transitions. [2018-04-10 15:33:33,685 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-04-10 15:33:33,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 1682 transitions. [2018-04-10 15:33:33,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-04-10 15:33:33,685 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:33:33,686 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:33:33,686 INFO L408 AbstractCegarLoop]: === Iteration 81 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:33:33,686 INFO L82 PathProgramCache]: Analyzing trace with hash -308637910, now seen corresponding path program 5 times [2018-04-10 15:33:33,686 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:33:33,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:33:33,692 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:33:33,880 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:33,880 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:33:33,880 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-04-10 15:33:33,880 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:33:33,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:33,880 INFO L182 omatonBuilderFactory]: Interpolants [119013#false, 119012#true, 119015#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 119014#(= 1 (select |#valid| main_~head~0.base)), 119017#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 119016#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 119019#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base))), 119018#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base |main_#t~mem7.base|)) (= |main_#t~mem7.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 119021#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc6.base|)) (not (= main_~x~0.base main_~head~0.base))), 119020#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base))), 119023#(and (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|)) (not (= main_~head~0.base |main_#t~mem7.base|))), 119022#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 119025#(and (= 1 (select |#valid| main_~x~0.base)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 119024#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 119027#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 119026#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 119029#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 119028#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|))), 119031#(= 1 (select |#valid| main_~x~0.base)), 119030#(= 1 (select |#valid| |main_#t~mem20.base|))] [2018-04-10 15:33:33,880 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:33,881 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-10 15:33:33,881 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-10 15:33:33,881 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2018-04-10 15:33:33,881 INFO L87 Difference]: Start difference. First operand 1462 states and 1682 transitions. Second operand 20 states. [2018-04-10 15:33:34,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:33:34,698 INFO L93 Difference]: Finished difference Result 1700 states and 1958 transitions. [2018-04-10 15:33:34,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-04-10 15:33:34,698 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 80 [2018-04-10 15:33:34,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:33:34,699 INFO L225 Difference]: With dead ends: 1700 [2018-04-10 15:33:34,699 INFO L226 Difference]: Without dead ends: 1700 [2018-04-10 15:33:34,699 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=208, Invalid=1198, Unknown=0, NotChecked=0, Total=1406 [2018-04-10 15:33:34,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1700 states. [2018-04-10 15:33:34,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1700 to 1567. [2018-04-10 15:33:34,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1567 states. [2018-04-10 15:33:34,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 1796 transitions. [2018-04-10 15:33:34,706 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 1796 transitions. Word has length 80 [2018-04-10 15:33:34,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:33:34,706 INFO L459 AbstractCegarLoop]: Abstraction has 1567 states and 1796 transitions. [2018-04-10 15:33:34,706 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-10 15:33:34,706 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 1796 transitions. [2018-04-10 15:33:34,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-04-10 15:33:34,707 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:33:34,707 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:33:34,707 INFO L408 AbstractCegarLoop]: === Iteration 82 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:33:34,707 INFO L82 PathProgramCache]: Analyzing trace with hash -308637909, now seen corresponding path program 4 times [2018-04-10 15:33:34,708 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:33:34,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:33:34,713 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:33:34,960 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:34,960 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:33:34,960 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-04-10 15:33:34,960 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:33:34,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:34,961 INFO L182 omatonBuilderFactory]: Interpolants [122337#(= 1 (select |#valid| main_~head~0.base)), 122336#false, 122339#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 122338#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 122341#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base |main_#t~mem7.base|)) (= |main_#t~mem7.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 122340#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 122343#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base))), 122342#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base))), 122345#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 122344#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 |main_#t~malloc6.offset|) (not (= main_~head~0.base |main_#t~malloc6.base|)) (= 12 (select |#length| |main_#t~malloc6.base|)) (not (= main_~x~0.base main_~head~0.base))), 122347#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base))), 122346#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|)) (not (= main_~head~0.base |main_#t~mem7.base|))), 122349#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 122348#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 122351#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 122350#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) |main_#t~mem20.offset|)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|)))), 122353#(and (= 12 (select |#length| main_~x~0.base)) (= 0 main_~x~0.offset)), 122352#(and (= 0 |main_#t~mem20.offset|) (= 12 (select |#length| |main_#t~mem20.base|))), 122335#true] [2018-04-10 15:33:34,961 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:34,961 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-04-10 15:33:34,961 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-04-10 15:33:34,961 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2018-04-10 15:33:34,961 INFO L87 Difference]: Start difference. First operand 1567 states and 1796 transitions. Second operand 19 states. [2018-04-10 15:33:35,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:33:35,915 INFO L93 Difference]: Finished difference Result 1771 states and 2040 transitions. [2018-04-10 15:33:35,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-10 15:33:35,915 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 80 [2018-04-10 15:33:35,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:33:35,916 INFO L225 Difference]: With dead ends: 1771 [2018-04-10 15:33:35,916 INFO L226 Difference]: Without dead ends: 1771 [2018-04-10 15:33:35,916 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=144, Invalid=848, Unknown=0, NotChecked=0, Total=992 [2018-04-10 15:33:35,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1771 states. [2018-04-10 15:33:35,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1771 to 1561. [2018-04-10 15:33:35,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1561 states. [2018-04-10 15:33:35,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1561 states to 1561 states and 1787 transitions. [2018-04-10 15:33:35,923 INFO L78 Accepts]: Start accepts. Automaton has 1561 states and 1787 transitions. Word has length 80 [2018-04-10 15:33:35,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:33:35,923 INFO L459 AbstractCegarLoop]: Abstraction has 1561 states and 1787 transitions. [2018-04-10 15:33:35,923 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-04-10 15:33:35,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1561 states and 1787 transitions. [2018-04-10 15:33:35,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-04-10 15:33:35,924 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:33:35,924 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:33:35,924 INFO L408 AbstractCegarLoop]: === Iteration 83 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:33:35,924 INFO L82 PathProgramCache]: Analyzing trace with hash -2094753340, now seen corresponding path program 1 times [2018-04-10 15:33:35,925 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:33:35,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:33:35,930 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:33:36,009 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-04-10 15:33:36,009 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:33:36,009 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-04-10 15:33:36,009 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:33:36,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:36,010 INFO L182 omatonBuilderFactory]: Interpolants [125713#false, 125712#true, 125715#(= main_~head~0.offset 0), 125714#(= 0 |main_#t~malloc0.offset|), 125717#(and (= |main_#t~mem15.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 125716#(and (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 125719#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= main_~head~0.offset 0)), 125718#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~head~0.offset main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 125721#(= 1 (select |#valid| |main_#t~mem23.base|)), 125720#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ 0 4)))) (= 0 main_~x~0.offset))] [2018-04-10 15:33:36,010 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-04-10 15:33:36,010 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-10 15:33:36,010 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-10 15:33:36,010 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-04-10 15:33:36,010 INFO L87 Difference]: Start difference. First operand 1561 states and 1787 transitions. Second operand 10 states. [2018-04-10 15:33:36,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:33:36,219 INFO L93 Difference]: Finished difference Result 1879 states and 2140 transitions. [2018-04-10 15:33:36,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-10 15:33:36,219 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 81 [2018-04-10 15:33:36,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:33:36,220 INFO L225 Difference]: With dead ends: 1879 [2018-04-10 15:33:36,220 INFO L226 Difference]: Without dead ends: 1879 [2018-04-10 15:33:36,220 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2018-04-10 15:33:36,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1879 states. [2018-04-10 15:33:36,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1879 to 1292. [2018-04-10 15:33:36,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1292 states. [2018-04-10 15:33:36,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1292 states to 1292 states and 1471 transitions. [2018-04-10 15:33:36,227 INFO L78 Accepts]: Start accepts. Automaton has 1292 states and 1471 transitions. Word has length 81 [2018-04-10 15:33:36,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:33:36,227 INFO L459 AbstractCegarLoop]: Abstraction has 1292 states and 1471 transitions. [2018-04-10 15:33:36,227 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-10 15:33:36,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1292 states and 1471 transitions. [2018-04-10 15:33:36,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-04-10 15:33:36,228 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:33:36,228 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:33:36,228 INFO L408 AbstractCegarLoop]: === Iteration 84 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:33:36,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1537475776, now seen corresponding path program 1 times [2018-04-10 15:33:36,229 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:33:36,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:33:36,235 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:33:36,590 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:36,590 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:33:36,590 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-04-10 15:33:36,590 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:33:36,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:36,591 INFO L182 omatonBuilderFactory]: Interpolants [128907#true, 128909#(= 0 |main_#t~malloc0.offset|), 128908#false, 128911#(and (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 128910#(= main_~head~0.offset 0), 128913#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= 0 |main_#t~malloc6.offset|) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 128912#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 128915#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (= 0 |main_#t~mem7.offset|) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 128914#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 128917#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 128916#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 128919#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset main_~x~0.offset) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 128918#(and (not (= main_~x~0.base |main_#t~malloc9.base|)) (not (= main_~head~0.base |main_#t~malloc9.base|)) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~x~0.base)), 128921#(and (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))), 128920#(and (not (= |main_#t~mem10.base| main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)))) (not (= |main_#t~mem10.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 128923#(and (= 0 |main_#t~mem20.offset|) (not (= |main_#t~mem20.base| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) (+ main_~head~0.offset 4)))) (= main_~head~0.offset 0)), 128922#(and (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ main_~head~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0)), 128925#(and (not (= main_~x~0.base |main_#t~mem18.base|)) (= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0)), 128924#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~head~0.offset 4)))) (= main_~head~0.offset 0) (= 0 main_~x~0.offset)), 128926#(and (not |main_#t~short19|) (= main_~head~0.offset 0))] [2018-04-10 15:33:36,591 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:36,591 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-10 15:33:36,591 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-10 15:33:36,591 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2018-04-10 15:33:36,591 INFO L87 Difference]: Start difference. First operand 1292 states and 1471 transitions. Second operand 20 states. [2018-04-10 15:33:37,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:33:37,503 INFO L93 Difference]: Finished difference Result 1349 states and 1525 transitions. [2018-04-10 15:33:37,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-04-10 15:33:37,503 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 82 [2018-04-10 15:33:37,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:33:37,504 INFO L225 Difference]: With dead ends: 1349 [2018-04-10 15:33:37,504 INFO L226 Difference]: Without dead ends: 1335 [2018-04-10 15:33:37,504 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=356, Invalid=1536, Unknown=0, NotChecked=0, Total=1892 [2018-04-10 15:33:37,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1335 states. [2018-04-10 15:33:37,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1335 to 1286. [2018-04-10 15:33:37,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1286 states. [2018-04-10 15:33:37,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 1459 transitions. [2018-04-10 15:33:37,510 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 1459 transitions. Word has length 82 [2018-04-10 15:33:37,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:33:37,510 INFO L459 AbstractCegarLoop]: Abstraction has 1286 states and 1459 transitions. [2018-04-10 15:33:37,510 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-10 15:33:37,510 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 1459 transitions. [2018-04-10 15:33:37,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-04-10 15:33:37,511 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:33:37,511 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:33:37,511 INFO L408 AbstractCegarLoop]: === Iteration 85 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:33:37,511 INFO L82 PathProgramCache]: Analyzing trace with hash 475495915, now seen corresponding path program 1 times [2018-04-10 15:33:37,511 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:33:37,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:33:37,516 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:33:37,640 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-10 15:33:37,640 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:33:37,641 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-04-10 15:33:37,641 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:33:37,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:37,641 INFO L182 omatonBuilderFactory]: Interpolants [131618#(= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 131619#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (= main_~x~0.base main_~head~0.base)), 131616#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem7.base|))), 131617#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base))), 131622#(= 12 (select |#length| main_~x~0.base)), 131623#(and (= 12 (select |#length| main_~head~0.base)) (= main_~x~0.offset main_~head~0.offset)), 131620#(= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 131621#(= 12 (select |#length| |main_#t~mem21.base|)), 131624#(and (= 12 (select |#length| main_~head~0.base)) (<= 0 main_~head~0.offset)), 131625#(and (<= main_~head~0.offset 0) (<= 0 main_~head~0.offset)), 131610#true, 131611#false, 131614#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset main_~head~0.offset) (= 12 (select |#length| |main_#t~malloc6.base|)) (= main_~x~0.base main_~head~0.base)), 131615#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base main_~head~0.base)), 131612#(= 1 (select |#valid| main_~head~0.base)), 131613#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1))] [2018-04-10 15:33:37,641 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-10 15:33:37,641 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-10 15:33:37,641 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-10 15:33:37,641 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2018-04-10 15:33:37,641 INFO L87 Difference]: Start difference. First operand 1286 states and 1459 transitions. Second operand 16 states. [2018-04-10 15:33:38,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:33:38,114 INFO L93 Difference]: Finished difference Result 1351 states and 1524 transitions. [2018-04-10 15:33:38,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-04-10 15:33:38,114 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 82 [2018-04-10 15:33:38,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:33:38,115 INFO L225 Difference]: With dead ends: 1351 [2018-04-10 15:33:38,115 INFO L226 Difference]: Without dead ends: 1351 [2018-04-10 15:33:38,115 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=903, Unknown=0, NotChecked=0, Total=1056 [2018-04-10 15:33:38,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1351 states. [2018-04-10 15:33:38,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1351 to 1324. [2018-04-10 15:33:38,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1324 states. [2018-04-10 15:33:38,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 1502 transitions. [2018-04-10 15:33:38,120 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 1502 transitions. Word has length 82 [2018-04-10 15:33:38,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:33:38,120 INFO L459 AbstractCegarLoop]: Abstraction has 1324 states and 1502 transitions. [2018-04-10 15:33:38,120 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-10 15:33:38,120 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 1502 transitions. [2018-04-10 15:33:38,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-04-10 15:33:38,121 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:33:38,121 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:33:38,121 INFO L408 AbstractCegarLoop]: === Iteration 86 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:33:38,121 INFO L82 PathProgramCache]: Analyzing trace with hash -753341124, now seen corresponding path program 4 times [2018-04-10 15:33:38,122 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:33:38,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:33:38,129 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:33:38,565 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:38,565 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:33:38,565 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-04-10 15:33:38,565 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:33:38,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:38,565 INFO L182 omatonBuilderFactory]: Interpolants [134338#(= main_~head~0.offset 0), 134339#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 134336#false, 134337#(= |main_#t~malloc0.offset| 0), 134342#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 134343#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= |main_#t~mem7.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 134340#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 134341#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 134346#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 134347#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= |main_#t~mem10.base| main_~head~0.base)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 134344#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 134345#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc9.base|)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 134350#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 134351#(and (= main_~head~0.offset |main_#t~mem7.offset|) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|))), 134348#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 134349#(and (= main_~head~0.offset |main_#t~malloc6.offset|) (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base))), 134354#(or (and (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 134355#(or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 134352#(or (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)) (and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 134353#(or (and (= 1 (select |#valid| main_~x~0.base)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 134358#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 134359#(= 1 (select |#valid| |main_#t~mem20.base|)), 134356#(or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|))) (and (= 0 |main_#t~mem20.offset|) (= 0 |main_#t~mem20.base|))), 134357#(or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= 0 main_~x~0.base) (= 0 main_~x~0.offset))), 134360#(= 1 (select |#valid| main_~x~0.base)), 134335#true] [2018-04-10 15:33:38,565 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:38,565 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-04-10 15:33:38,566 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-04-10 15:33:38,566 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=573, Unknown=0, NotChecked=0, Total=650 [2018-04-10 15:33:38,566 INFO L87 Difference]: Start difference. First operand 1324 states and 1502 transitions. Second operand 26 states. [2018-04-10 15:33:40,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:33:40,264 INFO L93 Difference]: Finished difference Result 1546 states and 1761 transitions. [2018-04-10 15:33:40,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-04-10 15:33:40,264 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 83 [2018-04-10 15:33:40,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:33:40,265 INFO L225 Difference]: With dead ends: 1546 [2018-04-10 15:33:40,265 INFO L226 Difference]: Without dead ends: 1546 [2018-04-10 15:33:40,266 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1098 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=693, Invalid=3863, Unknown=0, NotChecked=0, Total=4556 [2018-04-10 15:33:40,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1546 states. [2018-04-10 15:33:40,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1546 to 1387. [2018-04-10 15:33:40,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1387 states. [2018-04-10 15:33:40,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1387 states to 1387 states and 1573 transitions. [2018-04-10 15:33:40,272 INFO L78 Accepts]: Start accepts. Automaton has 1387 states and 1573 transitions. Word has length 83 [2018-04-10 15:33:40,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:33:40,272 INFO L459 AbstractCegarLoop]: Abstraction has 1387 states and 1573 transitions. [2018-04-10 15:33:40,272 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-04-10 15:33:40,272 INFO L276 IsEmpty]: Start isEmpty. Operand 1387 states and 1573 transitions. [2018-04-10 15:33:40,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-04-10 15:33:40,273 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:33:40,273 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:33:40,273 INFO L408 AbstractCegarLoop]: === Iteration 87 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:33:40,273 INFO L82 PathProgramCache]: Analyzing trace with hash -753341123, now seen corresponding path program 5 times [2018-04-10 15:33:40,273 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:33:40,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:33:40,281 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:33:40,724 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:40,724 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:33:40,724 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-04-10 15:33:40,724 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:33:40,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:40,724 INFO L182 omatonBuilderFactory]: Interpolants [137378#true, 137379#false, 137382#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 137383#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 137380#(= |main_#t~malloc0.offset| 0), 137381#(= main_~head~0.offset 0), 137386#(and (= 1 (select |#valid| main_~head~0.base)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (= |main_#t~mem7.offset| 0) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 137387#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~head~0.base)) (= main_~x~0.offset 0) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 137384#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= |main_#t~malloc6.offset| 0)), 137385#(and (= 1 (select |#valid| main_~x~0.base)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 137390#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= |main_#t~mem10.base| main_~head~0.base)) (= main_~x~0.offset 0) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 137391#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.offset 0) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 137388#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= |main_#t~malloc9.base| main_~head~0.base)) (= main_~x~0.offset 0) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 137389#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)) main_~head~0.base)) (= main_~x~0.offset 0) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 137394#(and (= main_~head~0.offset |main_#t~mem7.offset|) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 137395#(or (and (= main_~x~0.offset main_~head~0.offset) (= main_~head~0.base main_~x~0.base)) (and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 137392#(and (= main_~head~0.offset |main_#t~malloc6.offset|) (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 |main_#t~malloc6.offset|) (= main_~x~0.offset 0) (= 12 (select |#length| |main_#t~malloc6.base|)) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 137393#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) 0))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0))), 137398#(or (and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 137399#(or (and (= 0 |main_#t~mem20.offset|) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) 0)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) 0)))) (and (= 0 |main_#t~mem20.offset|) (= 0 |main_#t~mem20.base|))), 137396#(or (and (= main_~x~0.offset main_~head~0.offset) (= main_~head~0.base main_~x~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 137397#(or (and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 137402#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 1 (select |#valid| main_~x~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 137403#(and (= 0 |main_#t~mem20.offset|) (= 12 (select |#length| |main_#t~mem20.base|))), 137400#(or (and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) 0))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0)) (= 0 main_~x~0.offset)) (and (= 0 main_~x~0.base) (= 0 main_~x~0.offset))), 137401#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 137404#(and (= 12 (select |#length| main_~x~0.base)) (= 0 main_~x~0.offset))] [2018-04-10 15:33:40,724 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:40,725 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-04-10 15:33:40,725 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-04-10 15:33:40,725 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=625, Unknown=0, NotChecked=0, Total=702 [2018-04-10 15:33:40,725 INFO L87 Difference]: Start difference. First operand 1387 states and 1573 transitions. Second operand 27 states. [2018-04-10 15:33:42,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:33:42,946 INFO L93 Difference]: Finished difference Result 1576 states and 1794 transitions. [2018-04-10 15:33:42,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2018-04-10 15:33:42,946 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 83 [2018-04-10 15:33:42,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:33:42,947 INFO L225 Difference]: With dead ends: 1576 [2018-04-10 15:33:42,947 INFO L226 Difference]: Without dead ends: 1576 [2018-04-10 15:33:42,947 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1058 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=650, Invalid=3772, Unknown=0, NotChecked=0, Total=4422 [2018-04-10 15:33:42,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2018-04-10 15:33:42,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1359. [2018-04-10 15:33:42,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1359 states. [2018-04-10 15:33:42,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1359 states to 1359 states and 1541 transitions. [2018-04-10 15:33:42,954 INFO L78 Accepts]: Start accepts. Automaton has 1359 states and 1541 transitions. Word has length 83 [2018-04-10 15:33:42,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:33:42,954 INFO L459 AbstractCegarLoop]: Abstraction has 1359 states and 1541 transitions. [2018-04-10 15:33:42,954 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-04-10 15:33:42,954 INFO L276 IsEmpty]: Start isEmpty. Operand 1359 states and 1541 transitions. [2018-04-10 15:33:42,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-04-10 15:33:42,955 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:33:42,955 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:33:42,955 INFO L408 AbstractCegarLoop]: === Iteration 88 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:33:42,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1855460742, now seen corresponding path program 1 times [2018-04-10 15:33:42,955 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:33:42,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:33:42,961 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:33:43,181 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-10 15:33:43,182 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:33:43,182 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-04-10 15:33:43,182 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:33:43,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:43,182 INFO L182 omatonBuilderFactory]: Interpolants [140422#(= 0 |main_#t~malloc0.offset|), 140423#(= main_~head~0.offset 0), 140420#true, 140421#false, 140426#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= 0 |main_#t~malloc6.offset|) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 140427#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0)), 140424#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 140425#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 140430#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 140431#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 140428#(and (= 0 |main_#t~mem7.offset|) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 140429#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 0 main_~x~0.offset)), 140434#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ 0 4))) (= 0 main_~x~0.offset)), 140435#(= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))), 140432#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 140433#(and (= 0 |main_#t~mem21.offset|) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem21.base|) (+ 0 4)))), 140436#(= 0 |main_#t~mem23.offset|)] [2018-04-10 15:33:43,182 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-10 15:33:43,182 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-04-10 15:33:43,183 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-04-10 15:33:43,183 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2018-04-10 15:33:43,183 INFO L87 Difference]: Start difference. First operand 1359 states and 1541 transitions. Second operand 17 states. [2018-04-10 15:33:44,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:33:44,071 INFO L93 Difference]: Finished difference Result 1519 states and 1706 transitions. [2018-04-10 15:33:44,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-04-10 15:33:44,071 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 83 [2018-04-10 15:33:44,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:33:44,072 INFO L225 Difference]: With dead ends: 1519 [2018-04-10 15:33:44,072 INFO L226 Difference]: Without dead ends: 1519 [2018-04-10 15:33:44,072 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 632 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=514, Invalid=2242, Unknown=0, NotChecked=0, Total=2756 [2018-04-10 15:33:44,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1519 states. [2018-04-10 15:33:44,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1519 to 1359. [2018-04-10 15:33:44,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1359 states. [2018-04-10 15:33:44,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1359 states to 1359 states and 1540 transitions. [2018-04-10 15:33:44,078 INFO L78 Accepts]: Start accepts. Automaton has 1359 states and 1540 transitions. Word has length 83 [2018-04-10 15:33:44,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:33:44,078 INFO L459 AbstractCegarLoop]: Abstraction has 1359 states and 1540 transitions. [2018-04-10 15:33:44,078 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-04-10 15:33:44,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1359 states and 1540 transitions. [2018-04-10 15:33:44,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-04-10 15:33:44,079 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:33:44,079 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:33:44,079 INFO L408 AbstractCegarLoop]: === Iteration 89 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:33:44,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1181402434, now seen corresponding path program 5 times [2018-04-10 15:33:44,079 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:33:44,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:33:44,090 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:33:44,462 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:44,462 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:33:44,462 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-04-10 15:33:44,462 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:33:44,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:44,462 INFO L182 omatonBuilderFactory]: Interpolants [143387#true, 143390#(= 0 main_~head~0.offset), 143391#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base))), 143388#false, 143389#(= 0 |main_#t~malloc0.offset|), 143394#(and (= 0 main_~head~0.offset) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1) (= main_~x~0.base main_~head~0.base)), 143395#(and (= 0 main_~head~0.offset) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base |main_#t~mem7.base|)) (= |main_#t~mem7.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 143392#(and (= 0 main_~head~0.offset) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 143393#(and (= 0 main_~head~0.offset) (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 143398#(and (= 0 main_~head~0.offset) (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc6.base|)) (not (= main_~x~0.base main_~head~0.base))), 143399#(and (= 0 main_~head~0.offset) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= (select |#valid| main_~x~0.base) 1)), 143396#(and (= 0 main_~head~0.offset) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base))), 143397#(and (= 0 main_~head~0.offset) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base))), 143402#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~malloc9.base|)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~malloc9.offset| main_~head~0.offset) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 143403#(and (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4)) main_~head~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~x~0.base) 1)), 143400#(and (= 0 main_~head~0.offset) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|)) (not (= main_~head~0.base |main_#t~mem7.base|))), 143401#(and (= 0 main_~head~0.offset) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 143406#(or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 143407#(or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|))) (and (= 0 |main_#t~mem20.offset|) (= 0 |main_#t~mem20.base|))), 143404#(or (and (= |main_#t~mem10.offset| main_~head~0.offset) (= |main_#t~mem10.base| main_~head~0.base)) (and (not (= |main_#t~mem10.base| main_~head~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= |main_#t~mem10.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))))), 143405#(or (and (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 143410#(= 1 (select |#valid| |main_#t~mem20.base|)), 143411#(= 1 (select |#valid| main_~x~0.base)), 143408#(or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= 0 main_~x~0.base) (= 0 main_~x~0.offset))), 143409#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))] [2018-04-10 15:33:44,462 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:44,462 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-04-10 15:33:44,463 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-04-10 15:33:44,463 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2018-04-10 15:33:44,463 INFO L87 Difference]: Start difference. First operand 1359 states and 1540 transitions. Second operand 25 states. [2018-04-10 15:33:46,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:33:46,038 INFO L93 Difference]: Finished difference Result 1572 states and 1788 transitions. [2018-04-10 15:33:46,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-04-10 15:33:46,038 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 83 [2018-04-10 15:33:46,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:33:46,039 INFO L225 Difference]: With dead ends: 1572 [2018-04-10 15:33:46,039 INFO L226 Difference]: Without dead ends: 1572 [2018-04-10 15:33:46,040 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 880 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=634, Invalid=3272, Unknown=0, NotChecked=0, Total=3906 [2018-04-10 15:33:46,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1572 states. [2018-04-10 15:33:46,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1572 to 1387. [2018-04-10 15:33:46,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1387 states. [2018-04-10 15:33:46,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1387 states to 1387 states and 1572 transitions. [2018-04-10 15:33:46,046 INFO L78 Accepts]: Start accepts. Automaton has 1387 states and 1572 transitions. Word has length 83 [2018-04-10 15:33:46,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:33:46,046 INFO L459 AbstractCegarLoop]: Abstraction has 1387 states and 1572 transitions. [2018-04-10 15:33:46,046 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-04-10 15:33:46,046 INFO L276 IsEmpty]: Start isEmpty. Operand 1387 states and 1572 transitions. [2018-04-10 15:33:46,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-04-10 15:33:46,047 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:33:46,047 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:33:46,047 INFO L408 AbstractCegarLoop]: === Iteration 90 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:33:46,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1181402435, now seen corresponding path program 6 times [2018-04-10 15:33:46,048 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:33:46,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:33:46,054 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:33:46,462 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:46,463 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:33:46,463 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-04-10 15:33:46,463 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:33:46,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:46,463 INFO L182 omatonBuilderFactory]: Interpolants [146447#true, 146450#(= 0 main_~head~0.offset), 146451#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base))), 146448#false, 146449#(= 0 |main_#t~malloc0.offset|), 146454#(and (= 0 main_~head~0.offset) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 146455#(and (= 0 main_~head~0.offset) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base |main_#t~mem7.base|)) (= |main_#t~mem7.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 146452#(and (= 0 main_~head~0.offset) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 146453#(and (= 0 main_~head~0.offset) (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 146458#(and (= 0 main_~head~0.offset) (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 |main_#t~malloc6.offset|) (not (= main_~head~0.base |main_#t~malloc6.base|)) (= 12 (select |#length| |main_#t~malloc6.base|)) (not (= main_~x~0.base main_~head~0.base))), 146459#(and (= 0 main_~head~0.offset) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~x~0.base) 1)), 146456#(and (= 0 main_~head~0.offset) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base))), 146457#(and (= 0 main_~head~0.offset) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base))), 146462#(and (= 0 main_~head~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 12 (select |#length| main_~x~0.base)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~x~0.base) 1)), 146463#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base |main_#t~malloc9.base|)) (= 12 (select |#length| main_~x~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~malloc9.base|)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~malloc9.offset| main_~head~0.offset) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 146460#(and (= 0 main_~head~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 12 (select |#length| |main_#t~mem7.base|)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|)) (not (= main_~head~0.base |main_#t~mem7.base|))), 146461#(and (= 0 main_~head~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 12 (select |#length| main_~x~0.base)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 146466#(or (and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))) (and (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 146467#(or (and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))))), 146464#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 12 (select |#length| main_~x~0.base)) (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4)) main_~head~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 146465#(or (and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= |main_#t~mem10.base| main_~head~0.base)) (not (= |main_#t~mem10.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))) (and (= |main_#t~mem10.offset| main_~head~0.offset) (= |main_#t~mem10.base| main_~head~0.base))), 146470#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 146471#(and (= 0 |main_#t~mem20.offset|) (= 12 (select |#length| |main_#t~mem20.base|))), 146468#(or (and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) |main_#t~mem20.offset|)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|)))) (and (= 0 |main_#t~mem20.offset|) (= 0 |main_#t~mem20.base|))), 146469#(or (and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (and (= 0 main_~x~0.base) (= 0 main_~x~0.offset))), 146472#(and (= 12 (select |#length| main_~x~0.base)) (= 0 main_~x~0.offset))] [2018-04-10 15:33:46,463 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:46,463 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-04-10 15:33:46,463 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-04-10 15:33:46,463 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=572, Unknown=0, NotChecked=0, Total=650 [2018-04-10 15:33:46,464 INFO L87 Difference]: Start difference. First operand 1387 states and 1572 transitions. Second operand 26 states. [2018-04-10 15:33:48,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:33:48,065 INFO L93 Difference]: Finished difference Result 1602 states and 1821 transitions. [2018-04-10 15:33:48,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-04-10 15:33:48,065 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 83 [2018-04-10 15:33:48,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:33:48,066 INFO L225 Difference]: With dead ends: 1602 [2018-04-10 15:33:48,066 INFO L226 Difference]: Without dead ends: 1602 [2018-04-10 15:33:48,066 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 4 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 719 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=479, Invalid=2827, Unknown=0, NotChecked=0, Total=3306 [2018-04-10 15:33:48,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1602 states. [2018-04-10 15:33:48,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1602 to 1306. [2018-04-10 15:33:48,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1306 states. [2018-04-10 15:33:48,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1306 states to 1306 states and 1484 transitions. [2018-04-10 15:33:48,072 INFO L78 Accepts]: Start accepts. Automaton has 1306 states and 1484 transitions. Word has length 83 [2018-04-10 15:33:48,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:33:48,072 INFO L459 AbstractCegarLoop]: Abstraction has 1306 states and 1484 transitions. [2018-04-10 15:33:48,072 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-04-10 15:33:48,072 INFO L276 IsEmpty]: Start isEmpty. Operand 1306 states and 1484 transitions. [2018-04-10 15:33:48,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-04-10 15:33:48,073 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:33:48,073 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:33:48,073 INFO L408 AbstractCegarLoop]: === Iteration 91 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:33:48,073 INFO L82 PathProgramCache]: Analyzing trace with hash -2132499392, now seen corresponding path program 1 times [2018-04-10 15:33:48,073 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:33:48,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:33:48,079 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:33:48,341 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-10 15:33:48,342 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:33:48,342 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-04-10 15:33:48,342 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:33:48,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:48,342 INFO L182 omatonBuilderFactory]: Interpolants [149446#false, 149447#(= 0 |main_#t~malloc0.offset|), 149445#true, 149450#(and (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~malloc2.base|))), 149451#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 149448#(= main_~head~0.offset 0), 149449#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 149454#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (not (= main_~x~0.offset (+ main_~head~0.offset 4))) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 149455#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~head~0.offset 4)))) (= 1 (select |#valid| main_~x~0.base)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.offset (+ main_~head~0.offset 4))) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 149452#(and (not (= main_~head~0.base |main_#t~mem3.base|)) (= 1 (select |#valid| main_~head~0.base)) (= |main_#t~mem3.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))) (= main_~head~0.offset 0)), 149453#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= 1 (select |#valid| main_~x~0.base)) (not (= main_~x~0.offset (+ main_~head~0.offset 4))) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 149458#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~head~0.offset 4)))) (= 1 (select |#valid| main_~head~0.base)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 149459#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ 0 4)))) (= 1 (select |#valid| main_~x~0.base)) (= 0 main_~x~0.offset)), 149456#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem7.base|)) (= main_~head~0.offset 0)), 149457#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 149462#(= 1 (select |#valid| main_~head~0.base)), 149460#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= 1 (select |#valid| main_~head~0.base))), 149461#(and (= 1 (select |#valid| main_~head~0.base)) (not (= |main_#t~mem23.base| main_~head~0.base)))] [2018-04-10 15:33:48,342 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-10 15:33:48,342 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-10 15:33:48,342 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-10 15:33:48,342 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2018-04-10 15:33:48,343 INFO L87 Difference]: Start difference. First operand 1306 states and 1484 transitions. Second operand 18 states. [2018-04-10 15:33:48,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:33:48,786 INFO L93 Difference]: Finished difference Result 1498 states and 1688 transitions. [2018-04-10 15:33:48,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-10 15:33:48,786 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 84 [2018-04-10 15:33:48,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:33:48,787 INFO L225 Difference]: With dead ends: 1498 [2018-04-10 15:33:48,787 INFO L226 Difference]: Without dead ends: 1498 [2018-04-10 15:33:48,787 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=262, Invalid=730, Unknown=0, NotChecked=0, Total=992 [2018-04-10 15:33:48,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1498 states. [2018-04-10 15:33:48,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1498 to 1306. [2018-04-10 15:33:48,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1306 states. [2018-04-10 15:33:48,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1306 states to 1306 states and 1483 transitions. [2018-04-10 15:33:48,792 INFO L78 Accepts]: Start accepts. Automaton has 1306 states and 1483 transitions. Word has length 84 [2018-04-10 15:33:48,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:33:48,792 INFO L459 AbstractCegarLoop]: Abstraction has 1306 states and 1483 transitions. [2018-04-10 15:33:48,792 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-10 15:33:48,792 INFO L276 IsEmpty]: Start isEmpty. Operand 1306 states and 1483 transitions. [2018-04-10 15:33:48,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-04-10 15:33:48,793 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:33:48,793 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:33:48,793 INFO L408 AbstractCegarLoop]: === Iteration 92 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:33:48,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1684708395, now seen corresponding path program 1 times [2018-04-10 15:33:48,794 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:33:48,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:33:48,799 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:33:49,205 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-10 15:33:49,206 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:33:49,206 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-04-10 15:33:49,206 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:33:49,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:49,206 INFO L182 omatonBuilderFactory]: Interpolants [152295#true, 152298#(= main_~head~0.offset 0), 152299#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 152296#false, 152297#(= 0 |main_#t~malloc0.offset|), 152302#(and (= 0 |main_#t~malloc6.offset|) (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) 0) (not (= main_~head~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 152303#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) 0) (= main_~x~0.offset main_~head~0.offset) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0)), 152300#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) 0) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 152301#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) 0) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 152306#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~x~0.offset 8))) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 152307#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 152304#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) 0) (= 0 |main_#t~mem7.offset|) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 152305#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) 0) (= main_~x~0.offset 0) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 152310#(and (or |main_#t~short14| (and (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (not (= 2 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))) (= main_~x~0.base main_~head~0.base))) (= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0)), 152311#(and (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= main_~head~0.offset main_~x~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (not (= 2 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 152308#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= 0 main_~x~0.offset)), 152309#(and (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= |main_#t~mem12| (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= main_~head~0.offset main_~x~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 152314#(and (= 0 |main_#t~mem21.offset|) (not (= 2 (select (select |#memory_int| |main_#t~mem21.base|) (+ 0 8))))), 152315#(and (not (= 2 (select (select |#memory_int| main_~x~0.base) (+ 0 8)))) (= 0 main_~x~0.offset)), 152312#(and (not (= 2 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8)))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 152313#(and (not (= 2 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 8)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 152316#(not (= 2 (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)))), 152317#(not (= 2 |main_#t~mem22|))] [2018-04-10 15:33:49,206 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-10 15:33:49,207 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-04-10 15:33:49,207 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-04-10 15:33:49,207 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2018-04-10 15:33:49,207 INFO L87 Difference]: Start difference. First operand 1306 states and 1483 transitions. Second operand 23 states. [2018-04-10 15:33:50,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:33:50,290 INFO L93 Difference]: Finished difference Result 2001 states and 2234 transitions. [2018-04-10 15:33:50,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-04-10 15:33:50,290 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 84 [2018-04-10 15:33:50,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:33:50,291 INFO L225 Difference]: With dead ends: 2001 [2018-04-10 15:33:50,291 INFO L226 Difference]: Without dead ends: 2001 [2018-04-10 15:33:50,292 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 603 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=638, Invalid=2224, Unknown=0, NotChecked=0, Total=2862 [2018-04-10 15:33:50,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2001 states. [2018-04-10 15:33:50,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2001 to 1376. [2018-04-10 15:33:50,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1376 states. [2018-04-10 15:33:50,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 1556 transitions. [2018-04-10 15:33:50,298 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 1556 transitions. Word has length 84 [2018-04-10 15:33:50,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:33:50,298 INFO L459 AbstractCegarLoop]: Abstraction has 1376 states and 1556 transitions. [2018-04-10 15:33:50,298 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-04-10 15:33:50,298 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 1556 transitions. [2018-04-10 15:33:50,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-04-10 15:33:50,299 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:33:50,299 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:33:50,299 INFO L408 AbstractCegarLoop]: === Iteration 93 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:33:50,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1177416755, now seen corresponding path program 1 times [2018-04-10 15:33:50,300 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:33:50,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:33:50,304 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:33:50,608 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:50,608 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:33:50,608 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-04-10 15:33:50,608 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:33:50,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:50,608 INFO L182 omatonBuilderFactory]: Interpolants [155778#(not (= 2 (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)))), 155779#(not (= 2 |main_#t~mem22|)), 155776#(and (= 0 |main_#t~mem21.offset|) (not (= 2 (select (select |#memory_int| |main_#t~mem21.base|) (+ 0 8))))), 155777#(and (not (= 2 (select (select |#memory_int| main_~x~0.base) (+ 0 8)))) (= 0 main_~x~0.offset)), 155758#false, 155759#(= 0 |main_#t~malloc0.offset|), 155757#true, 155762#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 155763#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= 0 |main_#t~malloc6.offset|) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 155760#(= main_~head~0.offset 0), 155761#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 155766#(and (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 155767#(and (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 155764#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 155765#(and (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 155770#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 0 main_~x~0.offset)), 155771#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem12| (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 155768#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0)), 155769#(and (= 0 |main_#t~mem20.offset|) (= |main_#t~mem20.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 155774#(and (not (= 2 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8)))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 155775#(and (not (= 2 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 8)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 155772#(and (= main_~head~0.offset main_~x~0.offset) (or (and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= 2 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))))) |main_#t~short14|) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 155773#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset main_~x~0.offset) (not (= 2 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))] [2018-04-10 15:33:50,609 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:50,609 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-04-10 15:33:50,609 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-04-10 15:33:50,609 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2018-04-10 15:33:50,609 INFO L87 Difference]: Start difference. First operand 1376 states and 1556 transitions. Second operand 23 states. [2018-04-10 15:33:51,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:33:51,933 INFO L93 Difference]: Finished difference Result 1611 states and 1801 transitions. [2018-04-10 15:33:51,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-04-10 15:33:51,933 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 84 [2018-04-10 15:33:51,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:33:51,934 INFO L225 Difference]: With dead ends: 1611 [2018-04-10 15:33:51,934 INFO L226 Difference]: Without dead ends: 1611 [2018-04-10 15:33:51,935 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1281 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=873, Invalid=3957, Unknown=0, NotChecked=0, Total=4830 [2018-04-10 15:33:51,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2018-04-10 15:33:51,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 1300. [2018-04-10 15:33:51,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1300 states. [2018-04-10 15:33:51,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1300 states to 1300 states and 1475 transitions. [2018-04-10 15:33:51,941 INFO L78 Accepts]: Start accepts. Automaton has 1300 states and 1475 transitions. Word has length 84 [2018-04-10 15:33:51,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:33:51,941 INFO L459 AbstractCegarLoop]: Abstraction has 1300 states and 1475 transitions. [2018-04-10 15:33:51,941 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-04-10 15:33:51,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1300 states and 1475 transitions. [2018-04-10 15:33:51,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-04-10 15:33:51,942 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:33:51,942 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:33:51,942 INFO L408 AbstractCegarLoop]: === Iteration 94 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:33:51,942 INFO L82 PathProgramCache]: Analyzing trace with hash 152763220, now seen corresponding path program 1 times [2018-04-10 15:33:51,943 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:33:51,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:33:51,949 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:33:52,227 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-04-10 15:33:52,227 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:33:52,227 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-04-10 15:33:52,227 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:33:52,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:52,227 INFO L182 omatonBuilderFactory]: Interpolants [158786#false, 158787#(= 0 |main_#t~malloc0.offset|), 158785#true, 158790#(and (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~malloc2.base|))), 158791#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 158788#(= main_~head~0.offset 0), 158789#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 158794#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (not (= main_~x~0.base |main_#t~malloc6.base|)) (not (= main_~x~0.offset (+ main_~head~0.offset 4))) (= main_~x~0.base main_~head~0.base)), 158795#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~head~0.offset 4)))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.offset (+ main_~head~0.offset 4))) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 158792#(and (not (= main_~head~0.base |main_#t~mem3.base|)) (= |main_#t~mem3.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4))) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 158793#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (not (= main_~x~0.offset (+ main_~head~0.offset 4))) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 158798#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (not (= main_~head~0.base |main_#t~malloc9.base|)) (not (= main_~x~0.base main_~head~0.base))), 158799#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))))), 158796#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base |main_#t~mem7.base|))), 158797#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base))), 158802#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~head~0.offset 4)))) (= main_~head~0.offset main_~x~0.offset)), 158803#(and (not (= main_~x~0.base |main_#t~mem18.base|)) (= main_~head~0.offset main_~x~0.offset)), 158800#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (not (= |main_#t~mem10.base| main_~head~0.base))), 158801#(not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))), 158804#(and (= main_~head~0.offset main_~x~0.offset) (not |main_#t~short19|))] [2018-04-10 15:33:52,227 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-04-10 15:33:52,227 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-10 15:33:52,227 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-10 15:33:52,228 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2018-04-10 15:33:52,228 INFO L87 Difference]: Start difference. First operand 1300 states and 1475 transitions. Second operand 20 states. [2018-04-10 15:33:53,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:33:53,057 INFO L93 Difference]: Finished difference Result 1482 states and 1668 transitions. [2018-04-10 15:33:53,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-10 15:33:53,098 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 85 [2018-04-10 15:33:53,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:33:53,099 INFO L225 Difference]: With dead ends: 1482 [2018-04-10 15:33:53,099 INFO L226 Difference]: Without dead ends: 1465 [2018-04-10 15:33:53,099 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=325, Invalid=1081, Unknown=0, NotChecked=0, Total=1406 [2018-04-10 15:33:53,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1465 states. [2018-04-10 15:33:53,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1465 to 1292. [2018-04-10 15:33:53,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1292 states. [2018-04-10 15:33:53,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1292 states to 1292 states and 1462 transitions. [2018-04-10 15:33:53,104 INFO L78 Accepts]: Start accepts. Automaton has 1292 states and 1462 transitions. Word has length 85 [2018-04-10 15:33:53,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:33:53,104 INFO L459 AbstractCegarLoop]: Abstraction has 1292 states and 1462 transitions. [2018-04-10 15:33:53,104 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-10 15:33:53,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1292 states and 1462 transitions. [2018-04-10 15:33:53,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-04-10 15:33:53,105 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:33:53,105 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:33:53,105 INFO L408 AbstractCegarLoop]: === Iteration 95 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:33:53,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1690196720, now seen corresponding path program 3 times [2018-04-10 15:33:53,106 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:33:53,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:33:53,113 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:33:54,001 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 2 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:54,001 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:33:54,001 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2018-04-10 15:33:54,001 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:33:54,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:54,002 INFO L182 omatonBuilderFactory]: Interpolants [161615#true, 161618#(= main_~head~0.offset 0), 161619#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 161616#false, 161617#(= 0 |main_#t~malloc0.offset|), 161622#(and (= 0 |main_#t~malloc6.offset|) (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) 0) (not (= main_~head~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 161623#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) 0) (= main_~x~0.offset main_~head~0.offset) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 161620#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) 0) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 161621#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) 0) (= main_~x~0.offset main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 161626#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) 0) (not (= main_~head~0.base main_~x~0.base)) (= main_~head~0.offset main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 161627#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base main_~x~0.base)) (= main_~head~0.offset main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 161624#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) 0) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (= 0 |main_#t~mem7.offset|) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 161625#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) 0) (not (= main_~head~0.base main_~x~0.base)) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 161630#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|)) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 161631#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 161628#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base main_~x~0.base)) (not (= main_~head~0.base |main_#t~malloc6.base|)) (= main_~head~0.offset main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 161629#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 161634#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~head~0.base main_~x~0.base)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 161635#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|)) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 161632#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 161633#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~malloc6.base|)) (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~head~0.base |main_#t~malloc6.base|)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 161638#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 161639#(and (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 main_~x~0.offset)), 161636#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 161637#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 161642#(and (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 8))) (= main_~x~0.offset 0) (not (= 2 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 161643#(and (= 0 |main_#t~mem20.offset|) (not (= 2 (select (select |#memory_int| |main_#t~mem20.base|) (+ 0 8))))), 161640#(and (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 8))) (= |main_#t~mem12| (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= main_~x~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 161641#(and (= main_~x~0.offset 0) (or |main_#t~short14| (and (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 8))) (not (= 2 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 161646#(and (= main_~x~0.offset 0) (not |main_#t~short14|)), 161644#(and (not (= 2 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))) (= 0 main_~x~0.offset)), 161645#(and (not (= 2 |main_#t~mem12|)) (= main_~x~0.offset 0))] [2018-04-10 15:33:54,002 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 2 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:54,002 INFO L442 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-04-10 15:33:54,002 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-04-10 15:33:54,002 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=858, Unknown=0, NotChecked=0, Total=992 [2018-04-10 15:33:54,002 INFO L87 Difference]: Start difference. First operand 1292 states and 1462 transitions. Second operand 32 states. [2018-04-10 15:33:55,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:33:55,856 INFO L93 Difference]: Finished difference Result 1956 states and 2185 transitions. [2018-04-10 15:33:55,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-04-10 15:33:55,856 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 85 [2018-04-10 15:33:55,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:33:55,857 INFO L225 Difference]: With dead ends: 1956 [2018-04-10 15:33:55,857 INFO L226 Difference]: Without dead ends: 1956 [2018-04-10 15:33:55,858 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 6 SyntacticMatches, 3 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1083 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=771, Invalid=3785, Unknown=0, NotChecked=0, Total=4556 [2018-04-10 15:33:55,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1956 states. [2018-04-10 15:33:55,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1956 to 1369. [2018-04-10 15:33:55,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1369 states. [2018-04-10 15:33:55,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1369 states to 1369 states and 1549 transitions. [2018-04-10 15:33:55,866 INFO L78 Accepts]: Start accepts. Automaton has 1369 states and 1549 transitions. Word has length 85 [2018-04-10 15:33:55,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:33:55,866 INFO L459 AbstractCegarLoop]: Abstraction has 1369 states and 1549 transitions. [2018-04-10 15:33:55,866 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-04-10 15:33:55,866 INFO L276 IsEmpty]: Start isEmpty. Operand 1369 states and 1549 transitions. [2018-04-10 15:33:55,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-04-10 15:33:55,867 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:33:55,867 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:33:55,867 INFO L408 AbstractCegarLoop]: === Iteration 96 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:33:55,867 INFO L82 PathProgramCache]: Analyzing trace with hash -616262168, now seen corresponding path program 2 times [2018-04-10 15:33:55,867 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:33:55,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:33:55,876 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:33:56,473 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:56,473 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:33:56,473 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-04-10 15:33:56,473 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:33:56,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:56,474 INFO L182 omatonBuilderFactory]: Interpolants [165058#(and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (= (select |#valid| main_~head~0.base) 1) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|)) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 165059#(and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~head~0.base main_~x~0.base)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 165056#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (not (= main_~head~0.base |main_#t~malloc6.base|)) (= (select |#valid| main_~head~0.base) 1) (< main_~x~0.offset (+ main_~head~0.offset 1)) (not (= main_~x~0.base main_~head~0.base)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 165057#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 1 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= (select |#valid| main_~head~0.base) 1) (< main_~x~0.offset (+ main_~head~0.offset 1)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 165062#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~head~0.base main_~x~0.base)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 165063#(and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|)) (not (= main_~head~0.base |main_#t~mem7.base|)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 165060#(and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~head~0.base main_~x~0.base)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 165061#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~malloc6.base|)) (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~head~0.base |main_#t~malloc6.base|)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 165066#(and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 165067#(and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 165064#(and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 165065#(and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 165070#(and (= main_~x~0.offset 0) (= 1 |main_#t~mem12|)), 165071#(and (= main_~x~0.offset 0) (not |main_#t~short14|)), 165068#(and (= 0 |main_#t~mem20.offset|) (= 1 (select (select |#memory_int| |main_#t~mem20.base|) (+ 0 8)))), 165069#(and (= 1 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= 0 main_~x~0.offset)), 165046#(= 0 |main_#t~malloc0.offset|), 165047#(= main_~head~0.offset 0), 165044#true, 165045#false, 165050#(and (= 0 |main_#t~malloc6.offset|) (not (= main_~head~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 165051#(and (= main_~x~0.offset main_~head~0.offset) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 165048#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 165049#(and (= main_~x~0.offset main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 165054#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 165055#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 165052#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (= 0 |main_#t~mem7.offset|) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 165053#(and (or (and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.offset main_~x~0.offset))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0))] [2018-04-10 15:33:56,474 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:56,474 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-04-10 15:33:56,474 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-04-10 15:33:56,474 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=636, Unknown=0, NotChecked=0, Total=756 [2018-04-10 15:33:56,474 INFO L87 Difference]: Start difference. First operand 1369 states and 1549 transitions. Second operand 28 states. [2018-04-10 15:33:58,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:33:58,084 INFO L93 Difference]: Finished difference Result 1874 states and 2105 transitions. [2018-04-10 15:33:58,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-04-10 15:33:58,084 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 85 [2018-04-10 15:33:58,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:33:58,085 INFO L225 Difference]: With dead ends: 1874 [2018-04-10 15:33:58,085 INFO L226 Difference]: Without dead ends: 1874 [2018-04-10 15:33:58,086 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 6 SyntacticMatches, 3 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 752 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=545, Invalid=2761, Unknown=0, NotChecked=0, Total=3306 [2018-04-10 15:33:58,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1874 states. [2018-04-10 15:33:58,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1874 to 1439. [2018-04-10 15:33:58,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1439 states. [2018-04-10 15:33:58,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1439 states to 1439 states and 1630 transitions. [2018-04-10 15:33:58,094 INFO L78 Accepts]: Start accepts. Automaton has 1439 states and 1630 transitions. Word has length 85 [2018-04-10 15:33:58,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:33:58,094 INFO L459 AbstractCegarLoop]: Abstraction has 1439 states and 1630 transitions. [2018-04-10 15:33:58,094 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-04-10 15:33:58,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1439 states and 1630 transitions. [2018-04-10 15:33:58,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-04-10 15:33:58,095 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:33:58,095 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:33:58,095 INFO L408 AbstractCegarLoop]: === Iteration 97 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:33:58,095 INFO L82 PathProgramCache]: Analyzing trace with hash -1150942232, now seen corresponding path program 2 times [2018-04-10 15:33:58,095 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:33:58,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:33:58,102 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:33:58,676 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 2 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:58,676 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:33:58,676 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-04-10 15:33:58,676 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:33:58,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:58,676 INFO L182 omatonBuilderFactory]: Interpolants [168450#(and (= main_~x~0.offset main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 168451#(and (= 0 |main_#t~malloc6.offset|) (not (= main_~head~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 168448#(= main_~head~0.offset 0), 168449#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 168454#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 168455#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 168452#(and (= main_~x~0.offset main_~head~0.offset) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 168453#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (= 0 |main_#t~mem7.offset|) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 168458#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 168459#(and (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|)) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 168456#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= main_~head~0.offset main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 168457#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc6.base|)) (= main_~head~0.offset main_~x~0.offset) (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 168462#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~malloc6.base|)) (not (= main_~head~0.base |main_#t~malloc6.base|)) (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 168463#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 168460#(and (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 168461#(and (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 168466#(and (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 168467#(and (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 168464#(and (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 168465#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 168470#(and (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= 0 main_~x~0.offset)), 168471#(and (= 0 |main_#t~mem12|) (= main_~x~0.offset 0)), 168468#(and (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 168469#(and (= 0 |main_#t~mem20.offset|) (= 0 (select (select |#memory_int| |main_#t~mem20.base|) (+ 0 8)))), 168472#(and (= main_~x~0.offset 0) (not |main_#t~short14|)), 168446#false, 168447#(= 0 |main_#t~malloc0.offset|), 168445#true] [2018-04-10 15:33:58,676 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 2 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:33:58,676 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-04-10 15:33:58,676 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-04-10 15:33:58,677 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=637, Unknown=0, NotChecked=0, Total=756 [2018-04-10 15:33:58,677 INFO L87 Difference]: Start difference. First operand 1439 states and 1630 transitions. Second operand 28 states. [2018-04-10 15:33:59,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:33:59,914 INFO L93 Difference]: Finished difference Result 1927 states and 2161 transitions. [2018-04-10 15:33:59,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-04-10 15:33:59,914 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 85 [2018-04-10 15:33:59,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:33:59,915 INFO L225 Difference]: With dead ends: 1927 [2018-04-10 15:33:59,915 INFO L226 Difference]: Without dead ends: 1927 [2018-04-10 15:33:59,915 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 6 SyntacticMatches, 3 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 755 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=544, Invalid=2762, Unknown=0, NotChecked=0, Total=3306 [2018-04-10 15:33:59,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1927 states. [2018-04-10 15:33:59,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1927 to 1345. [2018-04-10 15:33:59,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1345 states. [2018-04-10 15:33:59,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1345 states to 1345 states and 1518 transitions. [2018-04-10 15:33:59,921 INFO L78 Accepts]: Start accepts. Automaton has 1345 states and 1518 transitions. Word has length 85 [2018-04-10 15:33:59,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:33:59,921 INFO L459 AbstractCegarLoop]: Abstraction has 1345 states and 1518 transitions. [2018-04-10 15:33:59,921 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-04-10 15:33:59,922 INFO L276 IsEmpty]: Start isEmpty. Operand 1345 states and 1518 transitions. [2018-04-10 15:33:59,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-04-10 15:33:59,922 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:33:59,922 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:33:59,922 INFO L408 AbstractCegarLoop]: === Iteration 98 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:33:59,923 INFO L82 PathProgramCache]: Analyzing trace with hash -259659469, now seen corresponding path program 1 times [2018-04-10 15:33:59,923 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:33:59,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:33:59,930 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:34:00,295 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-10 15:34:00,296 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:34:00,296 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-04-10 15:34:00,296 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:34:00,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:00,296 INFO L182 omatonBuilderFactory]: Interpolants [171810#(and (= main_~head~0.offset |main_#t~malloc2.offset|) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~malloc2.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 171811#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 171808#(= main_~head~0.offset 0), 171809#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 171814#(and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~x~0.offset)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 171815#(and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (not (= main_~x~0.base |main_#t~malloc6.base|)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= |main_#t~malloc6.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~x~0.offset))), 171812#(and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 171813#(and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 171818#(and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 171819#(and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (not (= main_~head~0.base |main_#t~malloc9.base|)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 171816#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~head~0.offset 4))) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 171817#(and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|))), 171822#(and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (= main_~head~0.offset 0)), 171823#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~head~0.offset 4))) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= 0 main_~x~0.offset)), 171820#(and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~head~0.offset 0)), 171821#(and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (not (= |main_#t~mem10.base| main_~head~0.base)) (= main_~head~0.offset 0)), 171826#(= 0 |main_#t~mem23.offset|), 171824#(and (= |main_#t~mem13.offset| main_~x~0.offset) (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4)) |main_#t~mem13.offset|) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= 0 main_~x~0.offset)), 171825#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ 0 4))) (= 0 main_~x~0.offset)), 171806#false, 171807#(= |main_#t~malloc0.offset| 0), 171805#true] [2018-04-10 15:34:00,296 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-10 15:34:00,296 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-04-10 15:34:00,296 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-04-10 15:34:00,296 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2018-04-10 15:34:00,297 INFO L87 Difference]: Start difference. First operand 1345 states and 1518 transitions. Second operand 22 states. [2018-04-10 15:34:01,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:34:01,781 INFO L93 Difference]: Finished difference Result 1574 states and 1779 transitions. [2018-04-10 15:34:01,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-04-10 15:34:01,782 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 86 [2018-04-10 15:34:01,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:34:01,782 INFO L225 Difference]: With dead ends: 1574 [2018-04-10 15:34:01,783 INFO L226 Difference]: Without dead ends: 1574 [2018-04-10 15:34:01,783 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 682 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=682, Invalid=2624, Unknown=0, NotChecked=0, Total=3306 [2018-04-10 15:34:01,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1574 states. [2018-04-10 15:34:01,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1574 to 1450. [2018-04-10 15:34:01,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1450 states. [2018-04-10 15:34:01,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 1645 transitions. [2018-04-10 15:34:01,789 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 1645 transitions. Word has length 86 [2018-04-10 15:34:01,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:34:01,790 INFO L459 AbstractCegarLoop]: Abstraction has 1450 states and 1645 transitions. [2018-04-10 15:34:01,790 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-04-10 15:34:01,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 1645 transitions. [2018-04-10 15:34:01,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-04-10 15:34:01,790 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:34:01,791 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:34:01,791 INFO L408 AbstractCegarLoop]: === Iteration 99 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:34:01,791 INFO L82 PathProgramCache]: Analyzing trace with hash -1292904976, now seen corresponding path program 3 times [2018-04-10 15:34:01,791 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:34:01,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:34:01,799 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:34:02,197 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:02,197 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:34:02,197 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-04-10 15:34:02,197 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:34:02,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:02,197 INFO L182 omatonBuilderFactory]: Interpolants [174923#true, 174926#(= 0 main_~head~0.offset), 174927#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base))), 174924#false, 174925#(= 0 |main_#t~malloc0.offset|), 174930#(and (= 0 main_~head~0.offset) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 174931#(and (= 0 main_~head~0.offset) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base |main_#t~mem7.base|)) (= |main_#t~mem7.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 174928#(and (= 0 main_~head~0.offset) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 174929#(and (= 0 main_~head~0.offset) (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 174934#(and (= 0 main_~head~0.offset) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= (select |#valid| main_~x~0.base) 1)), 174935#(and (= 0 main_~head~0.offset) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= |main_#t~mem10.base| main_~head~0.base)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= (select |#valid| main_~x~0.base) 1)), 174932#(and (= 0 main_~head~0.offset) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base))), 174933#(and (= 0 main_~head~0.offset) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc9.base|)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base))), 174938#(and (= 0 main_~head~0.offset) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= (select |#valid| main_~x~0.base) 0))), 174939#(and (= 0 main_~head~0.offset) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|)) (not (= main_~head~0.base |main_#t~mem7.base|))), 174936#(and (= 0 main_~head~0.offset) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= (select |#valid| main_~x~0.base) 1)), 174937#(and (= 0 main_~head~0.offset) (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc6.base|)) (not (= main_~x~0.base main_~head~0.base))), 174942#(and (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4)) main_~head~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~x~0.base) 1)), 174943#(or (and (= |main_#t~mem10.offset| main_~head~0.offset) (= |main_#t~mem10.base| main_~head~0.base)) (and (not (= |main_#t~mem10.base| main_~head~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= |main_#t~mem10.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))))), 174940#(and (= 0 main_~head~0.offset) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 174941#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~malloc9.base|)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~malloc9.offset| main_~head~0.offset) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 174946#(or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|))) (and (= 0 |main_#t~mem20.offset|) (= 0 |main_#t~mem20.base|))), 174947#(or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= 0 main_~x~0.base) (= 0 main_~x~0.offset))), 174944#(or (and (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 174945#(or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 174950#(= 1 (select |#valid| main_~x~0.base)), 174948#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 174949#(= 1 (select |#valid| |main_#t~mem20.base|))] [2018-04-10 15:34:02,198 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:02,198 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-04-10 15:34:02,198 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-04-10 15:34:02,198 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=666, Unknown=0, NotChecked=0, Total=756 [2018-04-10 15:34:02,198 INFO L87 Difference]: Start difference. First operand 1450 states and 1645 transitions. Second operand 28 states. [2018-04-10 15:34:04,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:34:04,062 INFO L93 Difference]: Finished difference Result 1722 states and 1977 transitions. [2018-04-10 15:34:04,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2018-04-10 15:34:04,062 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 86 [2018-04-10 15:34:04,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:34:04,063 INFO L225 Difference]: With dead ends: 1722 [2018-04-10 15:34:04,063 INFO L226 Difference]: Without dead ends: 1722 [2018-04-10 15:34:04,063 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1276 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=736, Invalid=4376, Unknown=0, NotChecked=0, Total=5112 [2018-04-10 15:34:04,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2018-04-10 15:34:04,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1501. [2018-04-10 15:34:04,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1501 states. [2018-04-10 15:34:04,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1501 states to 1501 states and 1704 transitions. [2018-04-10 15:34:04,069 INFO L78 Accepts]: Start accepts. Automaton has 1501 states and 1704 transitions. Word has length 86 [2018-04-10 15:34:04,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:34:04,069 INFO L459 AbstractCegarLoop]: Abstraction has 1501 states and 1704 transitions. [2018-04-10 15:34:04,069 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-04-10 15:34:04,069 INFO L276 IsEmpty]: Start isEmpty. Operand 1501 states and 1704 transitions. [2018-04-10 15:34:04,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-04-10 15:34:04,070 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:34:04,070 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:34:04,070 INFO L408 AbstractCegarLoop]: === Iteration 100 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:34:04,070 INFO L82 PathProgramCache]: Analyzing trace with hash -1292904975, now seen corresponding path program 3 times [2018-04-10 15:34:04,071 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:34:04,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:34:04,079 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:34:04,864 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:04,864 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:34:04,864 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-04-10 15:34:04,864 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:34:04,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:04,864 INFO L182 omatonBuilderFactory]: Interpolants [178262#true, 178263#false, 178266#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 178267#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 178264#(= |main_#t~malloc0.offset| 0), 178265#(= main_~head~0.offset 0), 178270#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (= (select |#valid| main_~head~0.base) 1) (= |main_#t~mem7.offset| 0) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 178271#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 178268#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= |main_#t~malloc6.offset| 0)), 178269#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 178274#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= |main_#t~mem10.base| main_~head~0.base)) (= main_~x~0.offset 0) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 178275#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.offset 0) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 178272#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc9.base|)) (= main_~x~0.offset 0) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 178273#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~x~0.offset 0) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 178278#(and (= 0 main_~head~0.offset) (= 12 (select |#length| |main_#t~mem7.base|)) (= main_~head~0.offset |main_#t~mem7.offset|) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) |main_#t~mem7.base|)), 178279#(and (or (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~x~0.offset main_~head~0.offset) (or (and (= 0 main_~head~0.offset) (= 12 (select |#length| main_~x~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (and (= 0 main_~head~0.offset) (= main_~x~0.base main_~head~0.base)))), 178276#(and (= main_~head~0.offset |main_#t~malloc6.offset|) (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 |main_#t~malloc6.offset|) (= main_~x~0.offset 0) (= 12 (select |#length| |main_#t~malloc6.base|)) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 178277#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0)) (= (select |#valid| main_~x~0.base) 1)), 178282#(and (or (= (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)) main_~head~0.base) (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4)) main_~head~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= (select |#length| main_~x~0.base) 12))) (or (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (and (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4)) main_~head~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))))), 178283#(or (and (= |main_#t~mem10.offset| main_~head~0.offset) (= |main_#t~mem10.base| main_~head~0.base)) (and (or (and (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= |main_#t~mem10.base| main_~head~0.base))) (and (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= |main_#t~mem10.base| main_~head~0.base)) (not (= |main_#t~mem10.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 178280#(and (= main_~x~0.offset main_~head~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (or (and (= 0 main_~head~0.offset) (= 12 (select |#length| main_~x~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (and (= 0 main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 178281#(and (not (= main_~x~0.base |main_#t~malloc9.base|)) (or (and (= |main_#t~malloc9.offset| main_~head~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~x~0.base main_~head~0.base)) (= main_~x~0.offset main_~head~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (or (and (= 12 (select |#length| main_~x~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~malloc9.base|)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (and (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= |main_#t~malloc9.base| main_~head~0.base))), 178286#(or (and (= 0 |main_#t~mem20.offset|) (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) 0))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) 0))) (and (= 0 |main_#t~mem20.offset|) (= 0 |main_#t~mem20.base|))), 178287#(or (and (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) 0))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0)) (= 0 main_~x~0.offset)) (and (= 0 main_~x~0.base) (= 0 main_~x~0.offset))), 178284#(or (and (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 178285#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (or (and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) 0)) (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) 0)))) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 178290#(and (<= 12 (select |#length| main_~x~0.base)) (= 0 main_~x~0.offset)), 178288#(and (<= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 178289#(and (= 0 |main_#t~mem20.offset|) (<= 12 (select |#length| |main_#t~mem20.base|)))] [2018-04-10 15:34:04,864 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:04,865 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-04-10 15:34:04,865 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-04-10 15:34:04,865 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2018-04-10 15:34:04,865 INFO L87 Difference]: Start difference. First operand 1501 states and 1704 transitions. Second operand 29 states. [2018-04-10 15:34:06,673 WARN L151 SmtUtils]: Spent 119ms on a formula simplification. DAG size of input: 106 DAG size of output 92 [2018-04-10 15:34:07,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:34:07,931 INFO L93 Difference]: Finished difference Result 1775 states and 2037 transitions. [2018-04-10 15:34:07,931 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2018-04-10 15:34:07,931 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 86 [2018-04-10 15:34:07,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:34:07,933 INFO L225 Difference]: With dead ends: 1775 [2018-04-10 15:34:07,933 INFO L226 Difference]: Without dead ends: 1775 [2018-04-10 15:34:07,933 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1406 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=860, Invalid=4992, Unknown=0, NotChecked=0, Total=5852 [2018-04-10 15:34:07,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1775 states. [2018-04-10 15:34:07,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1775 to 1439. [2018-04-10 15:34:07,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1439 states. [2018-04-10 15:34:07,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1439 states to 1439 states and 1635 transitions. [2018-04-10 15:34:07,939 INFO L78 Accepts]: Start accepts. Automaton has 1439 states and 1635 transitions. Word has length 86 [2018-04-10 15:34:07,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:34:07,939 INFO L459 AbstractCegarLoop]: Abstraction has 1439 states and 1635 transitions. [2018-04-10 15:34:07,939 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-04-10 15:34:07,940 INFO L276 IsEmpty]: Start isEmpty. Operand 1439 states and 1635 transitions. [2018-04-10 15:34:07,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-04-10 15:34:07,940 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:34:07,940 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:34:07,941 INFO L408 AbstractCegarLoop]: === Iteration 101 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:34:07,941 INFO L82 PathProgramCache]: Analyzing trace with hash -284567439, now seen corresponding path program 2 times [2018-04-10 15:34:07,941 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:34:07,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:34:07,946 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:34:08,034 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 33 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-10 15:34:08,034 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:34:08,034 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2018-04-10 15:34:08,034 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:34:08,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:08,034 INFO L182 omatonBuilderFactory]: Interpolants [181602#false, 181603#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 181601#true, 181606#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) |main_#t~mem20.base|) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) |main_#t~mem20.offset|)), 181607#(and (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) main_~x~0.offset) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) main_~x~0.base)), 181604#(and (= |main_#t~mem20.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem20.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 181605#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 181610#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem21.base|) |main_#t~mem21.offset|)) (= 0 (select (select |#memory_$Pointer$.base| |main_#t~mem21.base|) |main_#t~mem21.offset|))), 181611#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 181608#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 181609#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 181612#(and (= 0 |main_#t~mem21.offset|) (= 0 |main_#t~mem21.base|)), 181613#(and (= 0 main_~x~0.base) (= 0 main_~x~0.offset))] [2018-04-10 15:34:08,034 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 33 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-10 15:34:08,034 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-10 15:34:08,035 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-10 15:34:08,035 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2018-04-10 15:34:08,035 INFO L87 Difference]: Start difference. First operand 1439 states and 1635 transitions. Second operand 13 states. [2018-04-10 15:34:08,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:34:08,461 INFO L93 Difference]: Finished difference Result 1828 states and 2122 transitions. [2018-04-10 15:34:08,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-04-10 15:34:08,461 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 87 [2018-04-10 15:34:08,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:34:08,462 INFO L225 Difference]: With dead ends: 1828 [2018-04-10 15:34:08,462 INFO L226 Difference]: Without dead ends: 1828 [2018-04-10 15:34:08,462 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=396, Unknown=0, NotChecked=0, Total=462 [2018-04-10 15:34:08,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1828 states. [2018-04-10 15:34:08,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1828 to 1638. [2018-04-10 15:34:08,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1638 states. [2018-04-10 15:34:08,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1638 states to 1638 states and 1896 transitions. [2018-04-10 15:34:08,469 INFO L78 Accepts]: Start accepts. Automaton has 1638 states and 1896 transitions. Word has length 87 [2018-04-10 15:34:08,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:34:08,469 INFO L459 AbstractCegarLoop]: Abstraction has 1638 states and 1896 transitions. [2018-04-10 15:34:08,469 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-10 15:34:08,469 INFO L276 IsEmpty]: Start isEmpty. Operand 1638 states and 1896 transitions. [2018-04-10 15:34:08,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-04-10 15:34:08,470 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:34:08,470 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:34:08,470 INFO L408 AbstractCegarLoop]: === Iteration 102 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:34:08,470 INFO L82 PathProgramCache]: Analyzing trace with hash 268478257, now seen corresponding path program 1 times [2018-04-10 15:34:08,471 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:34:08,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:34:08,477 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:34:08,682 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-10 15:34:08,682 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:34:08,682 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-04-10 15:34:08,682 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:34:08,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:08,683 INFO L182 omatonBuilderFactory]: Interpolants [185098#true, 185099#false, 185102#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset main_~head~0.offset) (= 12 (select |#length| |main_#t~malloc6.base|)) (= main_~x~0.base main_~head~0.base)), 185103#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 185100#(= 1 (select |#valid| main_~head~0.base)), 185101#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 185106#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| main_~x~0.base)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= (select |#valid| main_~x~0.base) 1)), 185107#(and (not (= main_~x~0.base |main_#t~malloc9.base|)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| main_~x~0.base)) (not (= main_~head~0.base |main_#t~malloc9.base|)) (not (= main_~x~0.base main_~head~0.base))), 185104#(and (= 12 (select |#length| |main_#t~mem7.base|)) (= (select |#valid| main_~head~0.base) 1) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem7.base|))), 185105#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| main_~x~0.base)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base))), 185110#(= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 185111#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (= main_~x~0.base main_~head~0.base)), 185108#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| main_~x~0.base)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))))), 185109#(and (not (= |main_#t~mem10.base| main_~head~0.base)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 185114#(= 12 (select |#length| main_~x~0.base)), 185115#(and (= 12 (select |#length| main_~head~0.base)) (= main_~x~0.offset main_~head~0.offset)), 185112#(= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 185113#(= 12 (select |#length| |main_#t~mem21.base|)), 185116#(and (= 12 (select |#length| main_~head~0.base)) (<= 0 main_~head~0.offset)), 185117#(and (<= main_~head~0.offset 0) (<= 0 main_~head~0.offset))] [2018-04-10 15:34:08,683 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-10 15:34:08,683 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-10 15:34:08,683 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-10 15:34:08,683 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2018-04-10 15:34:08,683 INFO L87 Difference]: Start difference. First operand 1638 states and 1896 transitions. Second operand 20 states. [2018-04-10 15:34:09,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:34:09,343 INFO L93 Difference]: Finished difference Result 1698 states and 1955 transitions. [2018-04-10 15:34:09,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-04-10 15:34:09,343 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 88 [2018-04-10 15:34:09,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:34:09,344 INFO L225 Difference]: With dead ends: 1698 [2018-04-10 15:34:09,344 INFO L226 Difference]: Without dead ends: 1698 [2018-04-10 15:34:09,344 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 362 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=247, Invalid=1393, Unknown=0, NotChecked=0, Total=1640 [2018-04-10 15:34:09,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1698 states. [2018-04-10 15:34:09,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1698 to 1658. [2018-04-10 15:34:09,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1658 states. [2018-04-10 15:34:09,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1658 states to 1658 states and 1921 transitions. [2018-04-10 15:34:09,355 INFO L78 Accepts]: Start accepts. Automaton has 1658 states and 1921 transitions. Word has length 88 [2018-04-10 15:34:09,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:34:09,355 INFO L459 AbstractCegarLoop]: Abstraction has 1658 states and 1921 transitions. [2018-04-10 15:34:09,356 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-10 15:34:09,356 INFO L276 IsEmpty]: Start isEmpty. Operand 1658 states and 1921 transitions. [2018-04-10 15:34:09,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-04-10 15:34:09,357 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:34:09,357 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:34:09,357 INFO L408 AbstractCegarLoop]: === Iteration 103 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:34:09,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1002309602, now seen corresponding path program 3 times [2018-04-10 15:34:09,358 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:34:09,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:34:09,370 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:34:10,176 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:10,176 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:34:10,177 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-04-10 15:34:10,177 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:34:10,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:10,177 INFO L182 omatonBuilderFactory]: Interpolants [188544#(= 1 (select |#valid| |main_#t~mem15.base|)), 188518#(= 0 |main_#t~malloc0.offset|), 188519#(= main_~head~0.offset 0), 188516#true, 188517#false, 188522#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= 0 |main_#t~malloc6.offset|) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 188523#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 188520#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 188521#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 188526#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 188527#(and (not (= main_~x~0.base |main_#t~malloc9.base|)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc9.base|)) (= 1 (select |#valid| |main_#t~malloc9.base|)) (= main_~head~0.offset main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 188524#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (= 0 |main_#t~mem7.offset|) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 188525#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 188530#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~head~0.offset main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 188531#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (or (= |main_#t~malloc6.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))))) (not (= main_~head~0.base |main_#t~malloc6.base|)) (not (= (select |#valid| main_~head~0.base) 0)) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 188528#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~head~0.offset main_~x~0.offset) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 188529#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= |main_#t~mem10.base| main_~head~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~mem10.base|)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 188534#(and (not (= (select |#valid| main_~head~0.base) 0)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~x~0.base main_~head~0.base)) (or (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 188535#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~malloc6.base|)) (not (= main_~head~0.base |main_#t~malloc6.base|)) (or (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= |main_#t~malloc6.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 188532#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= (select |#valid| main_~head~0.base) 0)) (= main_~head~0.offset main_~x~0.offset) (or (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (not (= (select |#valid| main_~x~0.base) 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 188533#(and (or (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))) (not (= (select |#valid| main_~head~0.base) 0)) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|)) (not (= main_~head~0.base |main_#t~mem7.base|)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 188538#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (or (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 188539#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))), 188536#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (or (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 188537#(and (or (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|)) (not (= main_~head~0.base |main_#t~mem7.base|)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 188542#(and (= 0 |main_#t~mem20.offset|) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) (+ 0 4))))), 188543#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= 0 main_~x~0.offset)), 188540#(and (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))), 188541#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))] [2018-04-10 15:34:10,177 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:10,177 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-04-10 15:34:10,177 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-04-10 15:34:10,177 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=705, Unknown=0, NotChecked=0, Total=812 [2018-04-10 15:34:10,177 INFO L87 Difference]: Start difference. First operand 1658 states and 1921 transitions. Second operand 29 states. [2018-04-10 15:34:11,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:34:11,878 INFO L93 Difference]: Finished difference Result 2101 states and 2410 transitions. [2018-04-10 15:34:11,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-04-10 15:34:11,878 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 88 [2018-04-10 15:34:11,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:34:11,879 INFO L225 Difference]: With dead ends: 2101 [2018-04-10 15:34:11,879 INFO L226 Difference]: Without dead ends: 2101 [2018-04-10 15:34:11,879 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 850 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=595, Invalid=3187, Unknown=0, NotChecked=0, Total=3782 [2018-04-10 15:34:11,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2101 states. [2018-04-10 15:34:11,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2101 to 1723. [2018-04-10 15:34:11,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1723 states. [2018-04-10 15:34:11,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1723 states to 1723 states and 1995 transitions. [2018-04-10 15:34:11,886 INFO L78 Accepts]: Start accepts. Automaton has 1723 states and 1995 transitions. Word has length 88 [2018-04-10 15:34:11,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:34:11,887 INFO L459 AbstractCegarLoop]: Abstraction has 1723 states and 1995 transitions. [2018-04-10 15:34:11,887 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-04-10 15:34:11,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1723 states and 1995 transitions. [2018-04-10 15:34:11,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-04-10 15:34:11,887 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:34:11,887 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:34:11,887 INFO L408 AbstractCegarLoop]: === Iteration 104 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:34:11,887 INFO L82 PathProgramCache]: Analyzing trace with hash -1002309601, now seen corresponding path program 2 times [2018-04-10 15:34:11,888 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:34:11,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:34:11,898 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:34:13,059 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:13,059 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:34:13,059 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2018-04-10 15:34:13,059 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:34:13,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:13,060 INFO L182 omatonBuilderFactory]: Interpolants [192450#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (not (= main_~head~0.base |main_#t~malloc6.base|)) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= |main_#t~malloc6.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 192451#(and (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 192448#(and (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (not (= |main_#t~mem10.base| main_~head~0.base)) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~mem10.base|)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 192449#(and (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~head~0.offset main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 192454#(and (= 1 (select |#valid| main_~x~0.base)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))), 192455#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~malloc6.base|)) (not (= main_~x~0.base |main_#t~malloc6.base|)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= main_~head~0.offset 0) (or (= main_~head~0.offset |main_#t~malloc6.offset|) (not (= main_~head~0.base |main_#t~malloc6.base|))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))), 192452#(and (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|)) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))), 192453#(and (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))), 192458#(or (and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))) (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base))), 192459#(or (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)))))), 192456#(and (or (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))), 192457#(and (or (= main_~head~0.offset |main_#t~mem7.offset|) (not (= main_~head~0.base |main_#t~mem7.base|))) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= main_~head~0.offset 0) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))), 192462#(or (and (= 0 |main_#t~mem20.offset|) (= |main_#t~mem20.offset| (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) (+ 0 4))) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) (+ 0 4))))) (and (= 0 |main_#t~mem20.offset|) (= 0 |main_#t~mem20.base|))), 192463#(or (and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4))) (= 0 main_~x~0.offset)) (and (= 0 main_~x~0.base) (= 0 main_~x~0.offset))), 192460#(or (and (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)))))), 192461#(or (and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 4)))))), 192466#(and (= 12 (select |#length| |main_#t~mem15.base|)) (= |main_#t~mem15.offset| 0)), 192464#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~x~0.offset 0) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4)))), 192465#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= |main_#t~mem13.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4))) (= |main_#t~mem13.offset| main_~x~0.offset) (= main_~x~0.offset 0)), 192435#true, 192438#(= main_~head~0.offset 0), 192439#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 192436#false, 192437#(= |main_#t~malloc0.offset| 0), 192442#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset) 0) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 192443#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (= 0 |main_#t~mem7.offset|) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 192440#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 192441#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= |main_#t~malloc6.offset| 0)), 192446#(and (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0) (not (= main_~x~0.base |main_#t~malloc9.base|)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc9.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~malloc9.offset|) (= 12 (select |#length| |main_#t~malloc9.base|)) (= main_~head~0.offset main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 192447#(and (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 192444#(and (or (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.offset main_~x~0.offset))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 192445#(and (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1))] [2018-04-10 15:34:13,060 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:13,060 INFO L442 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-04-10 15:34:13,060 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-04-10 15:34:13,060 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=854, Unknown=0, NotChecked=0, Total=992 [2018-04-10 15:34:13,060 INFO L87 Difference]: Start difference. First operand 1723 states and 1995 transitions. Second operand 32 states. [2018-04-10 15:34:15,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:34:15,827 INFO L93 Difference]: Finished difference Result 2099 states and 2427 transitions. [2018-04-10 15:34:15,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-04-10 15:34:15,827 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 88 [2018-04-10 15:34:15,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:34:15,828 INFO L225 Difference]: With dead ends: 2099 [2018-04-10 15:34:15,828 INFO L226 Difference]: Without dead ends: 2099 [2018-04-10 15:34:15,828 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 1 SyntacticMatches, 5 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1535 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=828, Invalid=4574, Unknown=0, NotChecked=0, Total=5402 [2018-04-10 15:34:15,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2099 states. [2018-04-10 15:34:15,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2099 to 1739. [2018-04-10 15:34:15,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1739 states. [2018-04-10 15:34:15,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1739 states to 1739 states and 2015 transitions. [2018-04-10 15:34:15,835 INFO L78 Accepts]: Start accepts. Automaton has 1739 states and 2015 transitions. Word has length 88 [2018-04-10 15:34:15,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:34:15,835 INFO L459 AbstractCegarLoop]: Abstraction has 1739 states and 2015 transitions. [2018-04-10 15:34:15,835 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-04-10 15:34:15,836 INFO L276 IsEmpty]: Start isEmpty. Operand 1739 states and 2015 transitions. [2018-04-10 15:34:15,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-04-10 15:34:15,836 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:34:15,836 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:34:15,836 INFO L408 AbstractCegarLoop]: === Iteration 105 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:34:15,836 INFO L82 PathProgramCache]: Analyzing trace with hash -231656813, now seen corresponding path program 3 times [2018-04-10 15:34:15,837 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:34:15,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:34:15,842 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:34:16,125 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-10 15:34:16,125 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:34:16,125 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-04-10 15:34:16,125 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:34:16,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:16,126 INFO L182 omatonBuilderFactory]: Interpolants [196390#false, 196391#(= |#valid| |old(#valid)|), 196389#true, 196394#(and (= 1 (select |#valid| main_~head~0.base)) (= (store |#valid| main_~head~0.base 0) |old(#valid)|)), 196395#(and (= main_~x~0.offset main_~head~0.offset) (= (store |#valid| main_~head~0.base 0) |old(#valid)|) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 196392#(= (store |#valid| |main_#t~malloc0.base| 0) |old(#valid)|), 196393#(= (store |#valid| main_~head~0.base 0) |old(#valid)|), 196398#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (store (store |#valid| main_~head~0.base 0) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0) |old(#valid)|) (not (= main_~head~0.base |main_#t~mem7.base|))), 196399#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= (store (store |#valid| main_~head~0.base 0) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0) |old(#valid)|)), 196396#(and (= |old(#valid)| (store (store |#valid| main_~head~0.base 0) |main_#t~malloc6.base| 0)) (not (= main_~head~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 196397#(and (= main_~x~0.offset main_~head~0.offset) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (= main_~x~0.base main_~head~0.base) (= (store (store |#valid| main_~head~0.base 0) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) 0) |old(#valid)|)), 196402#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= (store (store |#valid| main_~x~0.base 0) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) 0) |old(#valid)|)), 196403#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= (store (store |#valid| main_~head~0.base 0) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) 0) |old(#valid)|)), 196400#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (store (store |#valid| main_~head~0.base 0) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0) |old(#valid)|)), 196401#(and (= (store (store |#valid| main_~head~0.base 0) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset) 0) |old(#valid)|) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (= main_~x~0.base main_~head~0.base)), 196406#(= (store |#valid| main_~x~0.base 0) |old(#valid)|), 196404#(and (= |old(#valid)| (store (store |#valid| main_~head~0.base 0) |main_#t~mem21.base| 0)) (not (= main_~head~0.base |main_#t~mem21.base|))), 196405#(and (not (= main_~head~0.base main_~x~0.base)) (= (store (store |#valid| main_~head~0.base 0) main_~x~0.base 0) |old(#valid)|))] [2018-04-10 15:34:16,126 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-10 15:34:16,126 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-10 15:34:16,126 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-10 15:34:16,126 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2018-04-10 15:34:16,126 INFO L87 Difference]: Start difference. First operand 1739 states and 2015 transitions. Second operand 18 states. [2018-04-10 15:34:16,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:34:16,632 INFO L93 Difference]: Finished difference Result 1755 states and 2030 transitions. [2018-04-10 15:34:16,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-04-10 15:34:16,632 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 88 [2018-04-10 15:34:16,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:34:16,633 INFO L225 Difference]: With dead ends: 1755 [2018-04-10 15:34:16,633 INFO L226 Difference]: Without dead ends: 1697 [2018-04-10 15:34:16,633 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 6 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=693, Unknown=0, NotChecked=0, Total=812 [2018-04-10 15:34:16,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1697 states. [2018-04-10 15:34:16,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1697 to 1697. [2018-04-10 15:34:16,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1697 states. [2018-04-10 15:34:16,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1697 states to 1697 states and 1972 transitions. [2018-04-10 15:34:16,640 INFO L78 Accepts]: Start accepts. Automaton has 1697 states and 1972 transitions. Word has length 88 [2018-04-10 15:34:16,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:34:16,640 INFO L459 AbstractCegarLoop]: Abstraction has 1697 states and 1972 transitions. [2018-04-10 15:34:16,640 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-10 15:34:16,640 INFO L276 IsEmpty]: Start isEmpty. Operand 1697 states and 1972 transitions. [2018-04-10 15:34:16,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-04-10 15:34:16,640 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:34:16,641 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:34:16,641 INFO L408 AbstractCegarLoop]: === Iteration 106 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:34:16,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1553216472, now seen corresponding path program 4 times [2018-04-10 15:34:16,641 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:34:16,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:34:16,654 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:34:17,769 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:17,770 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:34:17,770 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2018-04-10 15:34:17,770 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:34:17,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:17,770 INFO L182 omatonBuilderFactory]: Interpolants [199883#(= |main_#t~malloc0.offset| 0), 199882#false, 199881#true, 199887#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) 0) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 199886#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) 0) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 199885#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 199884#(= main_~head~0.offset 0), 199891#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (or (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) 0) (not (= main_~head~0.offset main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 199890#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) 0) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (= 0 |main_#t~mem7.offset|) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 199889#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) 0) (= main_~x~0.offset main_~head~0.offset) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 199888#(and (= 0 |main_#t~malloc6.offset|) (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) 0) (not (= main_~head~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 199895#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 199894#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base main_~x~0.base)) (not (= main_~head~0.base |main_#t~malloc6.base|)) (= main_~head~0.offset main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 199893#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base main_~x~0.base)) (= main_~head~0.offset main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 199892#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) 0) (= main_~head~0.offset main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 199899#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~head~0.base |main_#t~malloc9.base|)) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 199898#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 199897#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 199896#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (= (select |#valid| main_~head~0.base) 1) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|)) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 199903#(and (or (and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~malloc6.base|)) (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~head~0.base |main_#t~malloc6.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (= main_~head~0.offset |main_#t~malloc6.offset|) (= main_~head~0.base |main_#t~malloc6.base|))) (not (= main_~head~0.base main_~x~0.base)) (= main_~head~0.offset 0)), 199902#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 199901#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= |main_#t~mem10.base| main_~head~0.base)) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 199900#(and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 199907#(and (or (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset 0)), 199906#(and (or (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)) (and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset 0)), 199905#(and (= main_~head~0.offset 0) (or (and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|)) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (= main_~head~0.offset |main_#t~mem7.offset|) (= main_~head~0.base |main_#t~mem7.base|)))), 199904#(and (not (= main_~head~0.base main_~x~0.base)) (or (and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset 0)), 199911#(or (and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 8))) (= |main_#t~mem12| (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= main_~x~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 199910#(or (and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 main_~x~0.offset))), 199909#(and (or (and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset 0)), 199908#(and (or (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset 0)), 199915#(or (and (not (= 2 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))) (= 0 main_~x~0.offset)) (and (= 0 main_~x~0.base) (= 0 main_~x~0.offset))), 199914#(or (and (= 0 |main_#t~mem20.offset|) (not (= 2 (select (select |#memory_int| |main_#t~mem20.base|) (+ 0 8))))) (and (= 0 |main_#t~mem20.offset|) (= 0 |main_#t~mem20.base|))), 199913#(or (and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 8))) (= main_~x~0.offset 0) (not (= 2 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 199912#(or (and (= main_~x~0.offset 0) (or |main_#t~short14| (and (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 8))) (not (= 2 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 199918#(and (= main_~x~0.offset 0) (not |main_#t~short14|)), 199917#(and (not (= 2 |main_#t~mem12|)) (= main_~x~0.offset 0)), 199916#(and (= main_~x~0.offset 0) (not (= 2 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8)))))] [2018-04-10 15:34:17,770 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:17,770 INFO L442 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-04-10 15:34:17,771 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-04-10 15:34:17,771 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=1238, Unknown=0, NotChecked=0, Total=1406 [2018-04-10 15:34:17,771 INFO L87 Difference]: Start difference. First operand 1697 states and 1972 transitions. Second operand 38 states. [2018-04-10 15:34:21,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:34:21,739 INFO L93 Difference]: Finished difference Result 2532 states and 2890 transitions. [2018-04-10 15:34:21,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2018-04-10 15:34:21,739 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 88 [2018-04-10 15:34:21,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:34:21,740 INFO L225 Difference]: With dead ends: 2532 [2018-04-10 15:34:21,740 INFO L226 Difference]: Without dead ends: 2532 [2018-04-10 15:34:21,741 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2820 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1496, Invalid=8404, Unknown=0, NotChecked=0, Total=9900 [2018-04-10 15:34:21,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2532 states. [2018-04-10 15:34:21,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2532 to 1766. [2018-04-10 15:34:21,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1766 states. [2018-04-10 15:34:21,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1766 states to 1766 states and 2051 transitions. [2018-04-10 15:34:21,748 INFO L78 Accepts]: Start accepts. Automaton has 1766 states and 2051 transitions. Word has length 88 [2018-04-10 15:34:21,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:34:21,748 INFO L459 AbstractCegarLoop]: Abstraction has 1766 states and 2051 transitions. [2018-04-10 15:34:21,748 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-04-10 15:34:21,748 INFO L276 IsEmpty]: Start isEmpty. Operand 1766 states and 2051 transitions. [2018-04-10 15:34:21,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-04-10 15:34:21,749 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:34:21,749 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:34:21,749 INFO L408 AbstractCegarLoop]: === Iteration 107 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:34:21,749 INFO L82 PathProgramCache]: Analyzing trace with hash -111364874, now seen corresponding path program 4 times [2018-04-10 15:34:21,749 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:34:21,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:34:21,755 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:34:22,192 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:22,192 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:34:22,192 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-04-10 15:34:22,192 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:34:22,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:22,192 INFO L182 omatonBuilderFactory]: Interpolants [204355#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0)), 204354#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 0 |main_#t~mem7.offset|) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|)) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|))), 204353#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0)), 204352#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 |main_#t~malloc6.offset|) (not (= main_~head~0.base |main_#t~malloc6.base|)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 204359#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) |main_#t~mem20.offset|)) (= (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|)) (+ 0 4)))), 204358#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (+ 0 4)))), 204357#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (+ main_~head~0.offset 4))) (= main_~head~0.offset 0) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 204356#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 1 (select |#valid| main_~x~0.base)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (not (= main_~x~0.base main_~head~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0)), 204363#(and (= |main_#t~mem13.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))) (= 1 (select |#valid| main_~x~0.base)) (= |main_#t~mem13.base| main_~x~0.base) (= main_~x~0.offset 0)), 204362#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))) (= 0 main_~x~0.offset)), 204361#(and (= 0 |main_#t~mem20.offset|) (= 1 (select |#valid| |main_#t~mem20.base|)) (= |main_#t~mem20.base| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) (+ 0 4)))), 204360#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 204365#(= 1 (select |#valid| |main_#t~mem15.base|)), 204364#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~x~0.offset 0)), 204343#(= 0 |main_#t~malloc0.offset|), 204342#false, 204341#true, 204347#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 204346#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 204345#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 204344#(= main_~head~0.offset 0), 204351#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 204350#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 204349#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= |main_#t~mem7.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 204348#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1))] [2018-04-10 15:34:22,193 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:22,193 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-04-10 15:34:22,193 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-04-10 15:34:22,193 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2018-04-10 15:34:22,193 INFO L87 Difference]: Start difference. First operand 1766 states and 2051 transitions. Second operand 25 states. [2018-04-10 15:34:23,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:34:23,688 INFO L93 Difference]: Finished difference Result 2100 states and 2419 transitions. [2018-04-10 15:34:23,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-04-10 15:34:23,689 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 88 [2018-04-10 15:34:23,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:34:23,690 INFO L225 Difference]: With dead ends: 2100 [2018-04-10 15:34:23,690 INFO L226 Difference]: Without dead ends: 2100 [2018-04-10 15:34:23,690 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 5 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 542 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=389, Invalid=2367, Unknown=0, NotChecked=0, Total=2756 [2018-04-10 15:34:23,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2018-04-10 15:34:23,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1833. [2018-04-10 15:34:23,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1833 states. [2018-04-10 15:34:23,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1833 states to 1833 states and 2126 transitions. [2018-04-10 15:34:23,699 INFO L78 Accepts]: Start accepts. Automaton has 1833 states and 2126 transitions. Word has length 88 [2018-04-10 15:34:23,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:34:23,699 INFO L459 AbstractCegarLoop]: Abstraction has 1833 states and 2126 transitions. [2018-04-10 15:34:23,699 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-04-10 15:34:23,699 INFO L276 IsEmpty]: Start isEmpty. Operand 1833 states and 2126 transitions. [2018-04-10 15:34:23,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-04-10 15:34:23,700 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:34:23,700 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:34:23,700 INFO L408 AbstractCegarLoop]: === Iteration 108 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:34:23,700 INFO L82 PathProgramCache]: Analyzing trace with hash -111364873, now seen corresponding path program 2 times [2018-04-10 15:34:23,700 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:34:23,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:34:23,707 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:34:24,187 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:24,187 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:34:24,187 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-04-10 15:34:24,187 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:34:24,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:24,188 INFO L182 omatonBuilderFactory]: Interpolants [208355#true, 208359#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 208358#(= main_~head~0.offset 0), 208357#(= 0 |main_#t~malloc0.offset|), 208356#false, 208363#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= |main_#t~mem7.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 208362#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 208361#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 208360#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 208367#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0)), 208366#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 |main_#t~malloc6.offset|) (not (= main_~head~0.base |main_#t~malloc6.base|)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 208365#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 208364#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 208371#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (+ main_~head~0.offset 4))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (+ main_~head~0.offset 4))) (= main_~head~0.offset 0)), 208370#(and (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) main_~x~0.offset) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0)), 208369#(and (or (and (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) main_~x~0.offset) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base))) (< main_~x~0.offset main_~head~0.offset)) (= main_~head~0.offset 0)), 208368#(and (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) |main_#t~mem7.offset|) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 0 |main_#t~mem7.offset|) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|)) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|))), 208375#(and (= 0 |main_#t~mem20.offset|) (= |main_#t~mem20.offset| (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) (+ 0 4))) (= |main_#t~mem20.base| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) (+ 0 4)))), 208374#(and (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 4))) (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 208373#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) |main_#t~mem20.offset|)) (= (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|)) (+ 0 4))) (= (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) |main_#t~mem20.offset|) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) |main_#t~mem20.offset|)) (+ 0 4)))), 208372#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (+ 0 4))) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))) (+ 0 4)))), 208379#(not |main_#t~short14|), 208378#(and (= |main_#t~mem13.offset| main_~x~0.offset) (= |main_#t~mem13.base| main_~x~0.base)), 208377#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))), 208376#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))) (= 0 main_~x~0.offset)), 208380#(not |main_#t~short17|)] [2018-04-10 15:34:24,188 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:24,188 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-04-10 15:34:24,188 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-04-10 15:34:24,188 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=579, Unknown=0, NotChecked=0, Total=650 [2018-04-10 15:34:24,188 INFO L87 Difference]: Start difference. First operand 1833 states and 2126 transitions. Second operand 26 states. [2018-04-10 15:34:26,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:34:26,125 INFO L93 Difference]: Finished difference Result 2237 states and 2565 transitions. [2018-04-10 15:34:26,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-04-10 15:34:26,125 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 88 [2018-04-10 15:34:26,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:34:26,126 INFO L225 Difference]: With dead ends: 2237 [2018-04-10 15:34:26,126 INFO L226 Difference]: Without dead ends: 2237 [2018-04-10 15:34:26,127 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 991 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=640, Invalid=3916, Unknown=0, NotChecked=0, Total=4556 [2018-04-10 15:34:26,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2237 states. [2018-04-10 15:34:26,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2237 to 1825. [2018-04-10 15:34:26,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1825 states. [2018-04-10 15:34:26,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1825 states to 1825 states and 2114 transitions. [2018-04-10 15:34:26,134 INFO L78 Accepts]: Start accepts. Automaton has 1825 states and 2114 transitions. Word has length 88 [2018-04-10 15:34:26,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:34:26,134 INFO L459 AbstractCegarLoop]: Abstraction has 1825 states and 2114 transitions. [2018-04-10 15:34:26,134 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-04-10 15:34:26,135 INFO L276 IsEmpty]: Start isEmpty. Operand 1825 states and 2114 transitions. [2018-04-10 15:34:26,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-04-10 15:34:26,135 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:34:26,135 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:34:26,135 INFO L408 AbstractCegarLoop]: === Iteration 109 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:34:26,135 INFO L82 PathProgramCache]: Analyzing trace with hash 723285472, now seen corresponding path program 1 times [2018-04-10 15:34:26,136 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:34:26,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:34:26,147 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:34:27,125 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:27,125 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:34:27,125 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2018-04-10 15:34:27,125 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:34:27,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:27,125 INFO L182 omatonBuilderFactory]: Interpolants [212547#(and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= (select |#valid| main_~head~0.base) 0)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 212546#(and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= |main_#t~mem10.base| main_~head~0.base)) (not (= (select |#valid| main_~head~0.base) 0)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 212545#(and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= (select |#valid| main_~head~0.base) 0)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 212544#(and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~head~0.base |main_#t~malloc9.base|)) (not (= (select |#valid| main_~head~0.base) 0)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 212551#(and (or (and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))) (<= (+ main_~x~0.offset 1) 0) (and (= main_~x~0.offset main_~head~0.offset) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~x~0.base))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 212550#(and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= 0 |main_#t~mem7.offset|) (not (= main_~head~0.base |main_#t~mem7.base|)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 212549#(and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 212548#(and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= 0 |main_#t~malloc6.offset|) (not (= main_~head~0.base |main_#t~malloc6.base|)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 212555#(and (or (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 8))) (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 212554#(and (or (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 212553#(and (or (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (and (= main_~x~0.offset main_~head~0.offset) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~x~0.base))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 212552#(and (or (and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))) (and (= main_~x~0.offset main_~head~0.offset) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~x~0.base))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 212559#(and (= main_~x~0.offset 0) (or (and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (not |main_#t~short14|))), 212558#(and (= main_~x~0.offset 0) (or (and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= 1 |main_#t~mem12|))), 212557#(and (or (= 1 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= 0 main_~x~0.offset)), 212556#(and (= 0 |main_#t~mem20.offset|) (or (= 1 (select (select |#memory_int| |main_#t~mem20.base|) (+ 0 8))) (= |main_#t~mem20.base| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) (+ 0 4))))), 212563#(= 1 (select |#valid| |main_#t~mem15.base|)), 212562#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~x~0.offset 0)), 212561#(and (= |main_#t~mem13.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))) (= 1 (select |#valid| main_~x~0.base)) (= |main_#t~mem13.base| main_~x~0.base) (= main_~x~0.offset 0)), 212560#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset 0) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))), 212527#true, 212531#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 212530#(= main_~head~0.offset 0), 212529#(= 0 |main_#t~malloc0.offset|), 212528#false, 212535#(and (= 0 |main_#t~mem7.offset|) (= (select |#valid| main_~head~0.base) 1) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 212534#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 212533#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= 0 |main_#t~malloc6.offset|) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 212532#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 212539#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= 1 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (not (= main_~head~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~x~0.base)), 212538#(and (= 1 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~x~0.base)), 212537#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~x~0.base)), 212536#(and (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~x~0.base)), 212543#(and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 212542#(and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 212541#(and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= (select |#valid| main_~head~0.base) 1) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|)) (not (= main_~head~0.base |main_#t~mem7.base|)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 212540#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 1 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~x~0.base))] [2018-04-10 15:34:27,125 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:27,125 INFO L442 AbstractCegarLoop]: Interpolant automaton has 37 states [2018-04-10 15:34:27,126 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2018-04-10 15:34:27,126 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=1157, Unknown=0, NotChecked=0, Total=1332 [2018-04-10 15:34:27,126 INFO L87 Difference]: Start difference. First operand 1825 states and 2114 transitions. Second operand 37 states. [2018-04-10 15:34:30,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:34:30,205 INFO L93 Difference]: Finished difference Result 3010 states and 3442 transitions. [2018-04-10 15:34:30,205 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2018-04-10 15:34:30,205 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 88 [2018-04-10 15:34:30,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:34:30,206 INFO L225 Difference]: With dead ends: 3010 [2018-04-10 15:34:30,206 INFO L226 Difference]: Without dead ends: 3010 [2018-04-10 15:34:30,207 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2496 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1345, Invalid=7967, Unknown=0, NotChecked=0, Total=9312 [2018-04-10 15:34:30,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3010 states. [2018-04-10 15:34:30,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3010 to 2049. [2018-04-10 15:34:30,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2049 states. [2018-04-10 15:34:30,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2049 states to 2049 states and 2379 transitions. [2018-04-10 15:34:30,217 INFO L78 Accepts]: Start accepts. Automaton has 2049 states and 2379 transitions. Word has length 88 [2018-04-10 15:34:30,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:34:30,217 INFO L459 AbstractCegarLoop]: Abstraction has 2049 states and 2379 transitions. [2018-04-10 15:34:30,217 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states. [2018-04-10 15:34:30,217 INFO L276 IsEmpty]: Start isEmpty. Operand 2049 states and 2379 transitions. [2018-04-10 15:34:30,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-04-10 15:34:30,217 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:34:30,218 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:34:30,218 INFO L408 AbstractCegarLoop]: === Iteration 110 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:34:30,218 INFO L82 PathProgramCache]: Analyzing trace with hash 723285473, now seen corresponding path program 1 times [2018-04-10 15:34:30,218 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:34:30,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:34:30,233 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:34:31,051 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:31,052 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:34:31,079 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2018-04-10 15:34:31,079 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:34:31,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:31,079 INFO L182 omatonBuilderFactory]: Interpolants [217743#true, 217747#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 217746#(= main_~head~0.offset 0), 217745#(= |main_#t~malloc0.offset| 0), 217744#false, 217751#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (= 0 |main_#t~mem7.offset|) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 217750#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 217749#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= 0 |main_#t~malloc6.offset|) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 217748#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 217755#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (not (= main_~head~0.base |main_#t~malloc6.base|)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 217754#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 217753#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 217752#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 217759#(and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 217758#(and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 217757#(and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (= (select |#valid| main_~head~0.base) 1) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|)) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 217756#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 1 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~x~0.base) (select |#valid| main_~head~0.base)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 217763#(and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 217762#(and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= |main_#t~mem10.base| main_~head~0.base)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 217761#(and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 217760#(and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~head~0.base |main_#t~malloc9.base|)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 217767#(or (and (= main_~x~0.offset main_~head~0.offset) (= main_~head~0.base main_~x~0.base)) (and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 217766#(and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= main_~head~0.offset |main_#t~mem7.offset|) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 217765#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 217764#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~malloc6.base|)) (= main_~head~0.offset |main_#t~malloc6.offset|) (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 217771#(or (and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 217770#(or (and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 217769#(or (and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (= main_~x~0.offset main_~head~0.offset) (= main_~head~0.base main_~x~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 217768#(or (and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (= main_~x~0.offset main_~head~0.offset) (= main_~head~0.base main_~x~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 217775#(and (= main_~x~0.offset 0) (= 1 |main_#t~mem12|)), 217774#(and (= 1 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= main_~x~0.offset 0)), 217773#(or (and (= 1 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= 0 main_~x~0.offset)) (and (= 0 main_~x~0.base) (= 0 main_~x~0.offset))), 217772#(or (and (= 0 |main_#t~mem20.offset|) (= 1 (select (select |#memory_int| |main_#t~mem20.base|) (+ 0 8)))) (and (= 0 |main_#t~mem20.offset|) (= 0 |main_#t~mem20.base|))), 217776#(and (= main_~x~0.offset 0) (not |main_#t~short14|))] [2018-04-10 15:34:31,080 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:31,080 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-04-10 15:34:31,080 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-04-10 15:34:31,080 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=969, Unknown=0, NotChecked=0, Total=1122 [2018-04-10 15:34:31,080 INFO L87 Difference]: Start difference. First operand 2049 states and 2379 transitions. Second operand 34 states. [2018-04-10 15:34:33,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:34:33,715 INFO L93 Difference]: Finished difference Result 2846 states and 3272 transitions. [2018-04-10 15:34:33,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2018-04-10 15:34:33,715 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 88 [2018-04-10 15:34:33,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:34:33,717 INFO L225 Difference]: With dead ends: 2846 [2018-04-10 15:34:33,717 INFO L226 Difference]: Without dead ends: 2846 [2018-04-10 15:34:33,717 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1779 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1019, Invalid=5623, Unknown=0, NotChecked=0, Total=6642 [2018-04-10 15:34:33,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2846 states. [2018-04-10 15:34:33,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2846 to 2016. [2018-04-10 15:34:33,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2016 states. [2018-04-10 15:34:33,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2016 states to 2016 states and 2345 transitions. [2018-04-10 15:34:33,727 INFO L78 Accepts]: Start accepts. Automaton has 2016 states and 2345 transitions. Word has length 88 [2018-04-10 15:34:33,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:34:33,727 INFO L459 AbstractCegarLoop]: Abstraction has 2016 states and 2345 transitions. [2018-04-10 15:34:33,728 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-04-10 15:34:33,728 INFO L276 IsEmpty]: Start isEmpty. Operand 2016 states and 2345 transitions. [2018-04-10 15:34:33,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-04-10 15:34:33,728 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:34:33,728 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:34:33,728 INFO L408 AbstractCegarLoop]: === Iteration 111 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:34:33,728 INFO L82 PathProgramCache]: Analyzing trace with hash 2103199712, now seen corresponding path program 2 times [2018-04-10 15:34:33,729 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:34:33,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:34:33,738 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:34:34,604 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:34,604 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:34:34,604 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2018-04-10 15:34:34,604 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:34:34,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:34,604 INFO L182 omatonBuilderFactory]: Interpolants [222735#true, 222739#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 222738#(= main_~head~0.offset 0), 222737#(= |main_#t~malloc0.offset| 0), 222736#false, 222743#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (= 0 |main_#t~mem7.offset|) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 222742#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 222741#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= 0 |main_#t~malloc6.offset|) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 222740#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 222747#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc6.base|)) (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= main_~head~0.offset main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 222746#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= main_~head~0.offset main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 222745#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 222744#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 222751#(and (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 222750#(and (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 222749#(and (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= (select |#valid| main_~head~0.base) 1) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|)) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 222748#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= main_~head~0.offset main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 222755#(and (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 222754#(and (not (= |main_#t~mem10.base| main_~head~0.base)) (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 222753#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 222752#(and (not (= main_~head~0.base |main_#t~malloc9.base|)) (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 222759#(and (= main_~head~0.offset 0) (or (and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)))), 222758#(and (or (= main_~head~0.offset |main_#t~mem7.offset|) (not (= main_~head~0.base |main_#t~mem7.base|))) (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 222757#(and (or (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~head~0.base main_~x~0.base)) (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 222756#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~malloc6.base|)) (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (or (= main_~head~0.offset |main_#t~malloc6.offset|) (not (= main_~head~0.base |main_#t~malloc6.base|))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 222763#(or (and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 222762#(and (or (and (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset 0)), 222761#(and (or (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset 0)), 222760#(and (or (and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))) (= main_~head~0.offset 0)), 222767#(and (= 0 |main_#t~mem12|) (= main_~x~0.offset 0)), 222766#(and (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= main_~x~0.offset 0)), 222765#(or (and (= 0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= 0 main_~x~0.offset)) (and (= 0 main_~x~0.base) (= 0 main_~x~0.offset))), 222764#(or (and (= 0 |main_#t~mem20.offset|) (= 0 (select (select |#memory_int| |main_#t~mem20.base|) (+ 0 8)))) (and (= 0 |main_#t~mem20.offset|) (= 0 |main_#t~mem20.base|))), 222768#(and (= main_~x~0.offset 0) (not |main_#t~short14|))] [2018-04-10 15:34:34,604 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:34,604 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-04-10 15:34:34,605 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-04-10 15:34:34,605 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=961, Unknown=0, NotChecked=0, Total=1122 [2018-04-10 15:34:34,605 INFO L87 Difference]: Start difference. First operand 2016 states and 2345 transitions. Second operand 34 states. [2018-04-10 15:34:37,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:34:37,090 INFO L93 Difference]: Finished difference Result 2842 states and 3275 transitions. [2018-04-10 15:34:37,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-04-10 15:34:37,090 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 88 [2018-04-10 15:34:37,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:34:37,091 INFO L225 Difference]: With dead ends: 2842 [2018-04-10 15:34:37,091 INFO L226 Difference]: Without dead ends: 2842 [2018-04-10 15:34:37,091 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1710 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=995, Invalid=5485, Unknown=0, NotChecked=0, Total=6480 [2018-04-10 15:34:37,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2842 states. [2018-04-10 15:34:37,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2842 to 1956. [2018-04-10 15:34:37,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1956 states. [2018-04-10 15:34:37,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1956 states to 1956 states and 2276 transitions. [2018-04-10 15:34:37,100 INFO L78 Accepts]: Start accepts. Automaton has 1956 states and 2276 transitions. Word has length 88 [2018-04-10 15:34:37,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:34:37,100 INFO L459 AbstractCegarLoop]: Abstraction has 1956 states and 2276 transitions. [2018-04-10 15:34:37,100 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-04-10 15:34:37,100 INFO L276 IsEmpty]: Start isEmpty. Operand 1956 states and 2276 transitions. [2018-04-10 15:34:37,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-04-10 15:34:37,101 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:34:37,101 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:34:37,101 INFO L408 AbstractCegarLoop]: === Iteration 112 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:34:37,101 INFO L82 PathProgramCache]: Analyzing trace with hash -1464765239, now seen corresponding path program 1 times [2018-04-10 15:34:37,102 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:34:37,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:34:37,107 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:34:37,549 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-10 15:34:37,549 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:34:37,549 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-04-10 15:34:37,549 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:34:37,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:37,549 INFO L182 omatonBuilderFactory]: Interpolants [227663#(= 0 |main_#t~malloc0.offset|), 227662#false, 227661#true, 227667#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 227666#(and (= 1 (select |#valid| |main_#t~malloc2.base|)) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~malloc2.base|))), 227665#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 227664#(= main_~head~0.offset 0), 227671#(and (not (= main_~head~0.base |main_#t~malloc6.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)) |main_#t~malloc6.base|))), 227670#(and (= main_~x~0.offset main_~head~0.offset) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 227669#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 227668#(and (not (= main_~head~0.base |main_#t~mem3.base|)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0)), 227675#(and (= 1 (select |#valid| main_~x~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)) main_~x~0.base)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~x~0.base)), 227674#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)) main_~x~0.base)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~x~0.base)), 227673#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)) |main_#t~mem7.base|)) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|))), 227672#(and (= main_~x~0.offset main_~head~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~head~0.offset 4)) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 227679#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0)), 227678#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ 0 4)) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 main_~x~0.offset)), 227677#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~head~0.offset 4)) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (= main_~head~0.offset main_~x~0.offset) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 227676#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0)), 227683#(and (= 1 (select |#valid| main_~x~0.base)) (not (= main_~head~0.base main_~x~0.base)) (= main_~head~0.offset 0)), 227682#(and (= 1 (select |#valid| main_~x~0.base)) (not (= main_~head~0.base main_~x~0.base)) (not (= |main_#t~mem23.base| main_~x~0.base)) (= main_~head~0.offset 0)), 227681#(and (= 1 (select |#valid| main_~x~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)) main_~x~0.base)) (not (= main_~head~0.base main_~x~0.base)) (= main_~head~0.offset 0)), 227680#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)) |main_#t~mem21.base|)) (= 1 (select |#valid| |main_#t~mem21.base|)) (not (= main_~head~0.base |main_#t~mem21.base|)) (= main_~head~0.offset 0)), 227685#(= 1 (select |#valid| main_~x~0.base)), 227684#(and (= 1 (select |#valid| main_~x~0.base)) (not (= main_~head~0.base main_~x~0.base)))] [2018-04-10 15:34:37,549 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-10 15:34:37,550 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-04-10 15:34:37,550 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-04-10 15:34:37,550 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=508, Unknown=0, NotChecked=0, Total=600 [2018-04-10 15:34:37,550 INFO L87 Difference]: Start difference. First operand 1956 states and 2276 transitions. Second operand 25 states. [2018-04-10 15:34:38,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:34:38,765 INFO L93 Difference]: Finished difference Result 2257 states and 2621 transitions. [2018-04-10 15:34:38,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-04-10 15:34:38,765 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 89 [2018-04-10 15:34:38,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:34:38,767 INFO L225 Difference]: With dead ends: 2257 [2018-04-10 15:34:38,767 INFO L226 Difference]: Without dead ends: 2257 [2018-04-10 15:34:38,767 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 660 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=633, Invalid=2673, Unknown=0, NotChecked=0, Total=3306 [2018-04-10 15:34:38,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2257 states. [2018-04-10 15:34:38,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2257 to 1950. [2018-04-10 15:34:38,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1950 states. [2018-04-10 15:34:38,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1950 states to 1950 states and 2269 transitions. [2018-04-10 15:34:38,775 INFO L78 Accepts]: Start accepts. Automaton has 1950 states and 2269 transitions. Word has length 89 [2018-04-10 15:34:38,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:34:38,776 INFO L459 AbstractCegarLoop]: Abstraction has 1950 states and 2269 transitions. [2018-04-10 15:34:38,776 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-04-10 15:34:38,776 INFO L276 IsEmpty]: Start isEmpty. Operand 1950 states and 2269 transitions. [2018-04-10 15:34:38,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-04-10 15:34:38,776 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:34:38,776 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:34:38,777 INFO L408 AbstractCegarLoop]: === Iteration 113 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:34:38,777 INFO L82 PathProgramCache]: Analyzing trace with hash -267119360, now seen corresponding path program 1 times [2018-04-10 15:34:38,777 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:34:38,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:34:38,783 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:34:39,172 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:39,173 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:34:39,173 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-04-10 15:34:39,173 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:34:39,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:39,173 INFO L182 omatonBuilderFactory]: Interpolants [231971#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 231970#(and (= 0 |main_#t~malloc9.offset|) (not (= main_~x~0.base |main_#t~malloc9.base|)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc9.base|)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (not (= main_~x~0.base main_~head~0.base)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 231969#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 231968#(and (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (or (< main_~x~0.offset main_~head~0.offset) (and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (< main_~x~0.offset (+ main_~head~0.offset 1))))), 231975#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) (+ main_~head~0.offset 4))) (= |main_#t~mem20.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 231974#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ main_~head~0.offset 4))) (= main_~x~0.offset main_~head~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 231973#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 231972#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (not (= |main_#t~mem10.base| main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= |main_#t~mem10.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 231979#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ 0 4))) (= 0 main_~x~0.offset)), 231978#(and (= 0 |main_#t~mem21.offset|) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem21.base|) (+ 0 4)))), 231977#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 231976#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~head~0.offset 4))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 231981#(= 0 |main_#t~mem23.offset|), 231980#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (= main_~head~0.offset 0)), 231959#true, 231963#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 231962#(= main_~head~0.offset 0), 231961#(= 0 |main_#t~malloc0.offset|), 231960#false, 231967#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (= 0 |main_#t~mem7.offset|) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 231966#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 231965#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= 0 |main_#t~malloc6.offset|) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 231964#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1))] [2018-04-10 15:34:39,173 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:39,173 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-04-10 15:34:39,174 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-04-10 15:34:39,174 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2018-04-10 15:34:39,174 INFO L87 Difference]: Start difference. First operand 1950 states and 2269 transitions. Second operand 23 states. [2018-04-10 15:34:40,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:34:40,768 INFO L93 Difference]: Finished difference Result 2146 states and 2474 transitions. [2018-04-10 15:34:40,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2018-04-10 15:34:40,768 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 89 [2018-04-10 15:34:40,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:34:40,769 INFO L225 Difference]: With dead ends: 2146 [2018-04-10 15:34:40,769 INFO L226 Difference]: Without dead ends: 2146 [2018-04-10 15:34:40,770 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1315 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=803, Invalid=4167, Unknown=0, NotChecked=0, Total=4970 [2018-04-10 15:34:40,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2146 states. [2018-04-10 15:34:40,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2146 to 1950. [2018-04-10 15:34:40,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1950 states. [2018-04-10 15:34:40,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1950 states to 1950 states and 2268 transitions. [2018-04-10 15:34:40,778 INFO L78 Accepts]: Start accepts. Automaton has 1950 states and 2268 transitions. Word has length 89 [2018-04-10 15:34:40,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:34:40,778 INFO L459 AbstractCegarLoop]: Abstraction has 1950 states and 2268 transitions. [2018-04-10 15:34:40,778 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-04-10 15:34:40,779 INFO L276 IsEmpty]: Start isEmpty. Operand 1950 states and 2268 transitions. [2018-04-10 15:34:40,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-04-10 15:34:40,779 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:34:40,779 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:34:40,779 INFO L408 AbstractCegarLoop]: === Iteration 114 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:34:40,780 INFO L82 PathProgramCache]: Analyzing trace with hash 309234673, now seen corresponding path program 1 times [2018-04-10 15:34:40,780 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:34:40,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:34:40,786 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:34:41,250 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:41,251 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:34:41,251 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-04-10 15:34:41,251 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:34:41,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:41,251 INFO L182 omatonBuilderFactory]: Interpolants [236175#false, 236174#true, 236179#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 236178#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 236177#(= main_~head~0.offset 0), 236176#(= 0 |main_#t~malloc0.offset|), 236183#(and (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (or (< main_~x~0.offset main_~head~0.offset) (and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (< main_~x~0.offset (+ main_~head~0.offset 1))))), 236182#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (= 0 |main_#t~mem7.offset|) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 236181#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 236180#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= 0 |main_#t~malloc6.offset|) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 236187#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)))) (not (= |main_#t~mem10.base| main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)))) (not (= |main_#t~mem10.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 236186#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 236185#(and (not (= main_~x~0.base |main_#t~malloc9.base|)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc9.base|)) (= 1 (select |#valid| |main_#t~malloc9.base|)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (not (= main_~x~0.base main_~head~0.base)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 236184#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 236191#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~head~0.offset 4)))) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~head~0.offset 4)))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 236190#(and (= |main_#t~mem20.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) (+ main_~head~0.offset 4)))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) (+ main_~head~0.offset 4)))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 236189#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ main_~head~0.offset 4)))) (= main_~x~0.offset main_~head~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ main_~head~0.offset 4)))) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 236188#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))), 236195#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ 0 4)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ 0 4)))) (= 0 main_~x~0.offset)), 236194#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem21.base|) (+ 0 4)))) (= 0 |main_#t~mem21.offset|) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| |main_#t~mem21.base|) (+ 0 4))))), 236193#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 4)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 236192#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 4)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 236198#(= 1 (select |#valid| |main_#t~mem23.base|)), 236197#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= main_~head~0.offset 0)), 236196#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ 0 4)))) (= 0 main_~x~0.offset))] [2018-04-10 15:34:41,251 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:41,251 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-04-10 15:34:41,251 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-04-10 15:34:41,252 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=520, Unknown=0, NotChecked=0, Total=600 [2018-04-10 15:34:41,252 INFO L87 Difference]: Start difference. First operand 1950 states and 2268 transitions. Second operand 25 states. [2018-04-10 15:34:42,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:34:42,891 INFO L93 Difference]: Finished difference Result 1994 states and 2312 transitions. [2018-04-10 15:34:42,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-04-10 15:34:42,891 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 90 [2018-04-10 15:34:42,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:34:42,892 INFO L225 Difference]: With dead ends: 1994 [2018-04-10 15:34:42,892 INFO L226 Difference]: Without dead ends: 1994 [2018-04-10 15:34:42,892 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1001 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=733, Invalid=3557, Unknown=0, NotChecked=0, Total=4290 [2018-04-10 15:34:42,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1994 states. [2018-04-10 15:34:42,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1994 to 1956. [2018-04-10 15:34:42,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1956 states. [2018-04-10 15:34:42,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1956 states to 1956 states and 2275 transitions. [2018-04-10 15:34:42,900 INFO L78 Accepts]: Start accepts. Automaton has 1956 states and 2275 transitions. Word has length 90 [2018-04-10 15:34:42,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:34:42,900 INFO L459 AbstractCegarLoop]: Abstraction has 1956 states and 2275 transitions. [2018-04-10 15:34:42,900 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-04-10 15:34:42,900 INFO L276 IsEmpty]: Start isEmpty. Operand 1956 states and 2275 transitions. [2018-04-10 15:34:42,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-04-10 15:34:42,901 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:34:42,901 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:34:42,901 INFO L408 AbstractCegarLoop]: === Iteration 115 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:34:42,901 INFO L82 PathProgramCache]: Analyzing trace with hash -1736396767, now seen corresponding path program 1 times [2018-04-10 15:34:42,901 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:34:42,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:34:42,908 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:34:43,474 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-10 15:34:43,474 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:34:43,474 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-04-10 15:34:43,474 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:34:43,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:43,475 INFO L182 omatonBuilderFactory]: Interpolants [240258#(= 1 (select |#valid| main_~head~0.base)), 240257#(and (= 1 (select |#valid| main_~head~0.base)) (not (= |main_#t~mem23.base| main_~head~0.base))), 240256#(and (= 1 (select |#valid| main_~x~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ 0 4)) main_~x~0.base)) (= 0 main_~x~0.offset)), 240231#true, 240235#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 240234#(= main_~head~0.offset 0), 240233#(= |main_#t~malloc0.offset| 0), 240232#false, 240239#(and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 240238#(and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (not (= main_~head~0.base |main_#t~mem3.base|)) (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 240237#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 240236#(and (= main_~head~0.offset |main_#t~malloc2.offset|) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~malloc2.base|))), 240243#(and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|))), 240242#(and (= 1 (select |#valid| main_~x~0.base)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~x~0.offset (+ main_~head~0.offset 4))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~head~0.offset 4))) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 240241#(and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (not (= main_~x~0.base |main_#t~malloc6.base|)) (not (= main_~x~0.offset (+ main_~head~0.offset 4))) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 240240#(and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (= 1 (select |#valid| main_~x~0.base)) (not (= main_~x~0.offset (+ main_~head~0.offset 4))) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 240247#(and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (not (= |main_#t~mem10.base| main_~head~0.base)) (= main_~head~0.offset 0)), 240246#(and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~head~0.offset 0)), 240245#(and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (not (= main_~head~0.base |main_#t~malloc9.base|)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 240244#(and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 240251#(and (= |main_#t~mem13.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))) (= 1 (select |#valid| main_~x~0.base)) (= |main_#t~mem13.offset| main_~x~0.offset) (= main_~x~0.offset 0) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 240250#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~head~0.offset 4))) (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset 0) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 240249#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~head~0.offset 4))) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= 0 main_~x~0.offset)), 240248#(and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) (+ main_~head~0.offset 4))) (= main_~head~0.offset 0)), 240255#(and (= 1 (select |#valid| main_~head~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) (+ main_~head~0.offset 4)) main_~head~0.base)) (= main_~head~0.offset 0)), 240254#(and (= 1 (select |#valid| main_~x~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)) main_~x~0.base)) (= main_~x~0.offset 0) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 240253#(and (or (not |main_#t~short17|) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)) main_~x~0.base))) (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset 0) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 240252#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset 0) (= main_~x~0.base main_~head~0.base) (or (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)) main_~x~0.base)) (not |main_#t~short14|)) (= main_~head~0.offset 0))] [2018-04-10 15:34:43,475 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-10 15:34:43,475 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-04-10 15:34:43,475 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-04-10 15:34:43,475 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=626, Unknown=0, NotChecked=0, Total=756 [2018-04-10 15:34:43,475 INFO L87 Difference]: Start difference. First operand 1956 states and 2275 transitions. Second operand 28 states. [2018-04-10 15:34:45,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:34:45,302 INFO L93 Difference]: Finished difference Result 2641 states and 3044 transitions. [2018-04-10 15:34:45,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-04-10 15:34:45,302 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 91 [2018-04-10 15:34:45,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:34:45,303 INFO L225 Difference]: With dead ends: 2641 [2018-04-10 15:34:45,303 INFO L226 Difference]: Without dead ends: 2641 [2018-04-10 15:34:45,304 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1119 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1021, Invalid=3809, Unknown=0, NotChecked=0, Total=4830 [2018-04-10 15:34:45,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2641 states. [2018-04-10 15:34:45,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2641 to 2090. [2018-04-10 15:34:45,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2090 states. [2018-04-10 15:34:45,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2090 states to 2090 states and 2433 transitions. [2018-04-10 15:34:45,315 INFO L78 Accepts]: Start accepts. Automaton has 2090 states and 2433 transitions. Word has length 91 [2018-04-10 15:34:45,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:34:45,315 INFO L459 AbstractCegarLoop]: Abstraction has 2090 states and 2433 transitions. [2018-04-10 15:34:45,315 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-04-10 15:34:45,315 INFO L276 IsEmpty]: Start isEmpty. Operand 2090 states and 2433 transitions. [2018-04-10 15:34:45,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-04-10 15:34:45,316 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:34:45,316 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:34:45,316 INFO L408 AbstractCegarLoop]: === Iteration 116 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:34:45,316 INFO L82 PathProgramCache]: Analyzing trace with hash 1906597866, now seen corresponding path program 5 times [2018-04-10 15:34:45,317 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:34:45,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:34:45,338 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:34:46,794 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:46,794 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:34:46,794 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2018-04-10 15:34:46,794 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:34:46,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:46,795 INFO L182 omatonBuilderFactory]: Interpolants [245075#false, 245074#true, 245079#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 245078#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 245077#(= main_~head~0.offset 0), 245076#(= |main_#t~malloc0.offset| 0), 245083#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~head~0.base)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 245082#(and (= 1 (select |#valid| main_~head~0.base)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (= 0 |main_#t~mem7.offset|) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 245081#(and (= 1 (select |#valid| main_~x~0.base)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0)), 245080#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= 0 |main_#t~malloc6.offset|) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 245087#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= |main_#t~mem10.base| main_~head~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base |main_#t~mem10.base|)) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 245086#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)) main_~head~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)) main_~x~0.base)) (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 245085#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= |main_#t~malloc9.base| main_~x~0.base)) (= 1 (select |#valid| |main_#t~malloc9.base|)) (not (= |main_#t~malloc9.base| main_~head~0.base)) (= 1 (select |#valid| main_~head~0.base)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (not (= main_~x~0.base main_~head~0.base)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 245084#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (= 1 (select |#valid| main_~head~0.base)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (not (= main_~x~0.base main_~head~0.base)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 245091#(and (or (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))) (= 1 (select |#valid| main_~head~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|)) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 245090#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset main_~x~0.offset) (or (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 245089#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (or (= |main_#t~malloc6.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))))) (not (= main_~head~0.base |main_#t~malloc6.base|)) (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 245088#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset main_~x~0.offset) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 245095#(and (or (and (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4)) main_~head~0.offset) (= |main_#t~mem10.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))) (= |main_#t~mem10.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))) (not (= main_~x~0.base |main_#t~mem10.base|))) (and (not (= |main_#t~mem10.base| main_~head~0.base)) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset 0) (or (and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= |main_#t~mem10.base| main_~head~0.base)) (and (= 1 (select |#valid| main_~head~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (or (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))) (not (= |main_#t~mem10.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))))), 245094#(and (or (and (= 1 (select |#valid| main_~head~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (or (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)))))) (and (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4)) main_~head~0.offset) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 245093#(and (or (and (not (= main_~head~0.base |main_#t~malloc9.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~malloc9.base|)) (= 1 (select |#valid| main_~head~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (or (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)))))) (and (= main_~head~0.base |main_#t~malloc9.base|) (not (= |main_#t~malloc9.base| main_~x~0.base)) (= 1 (select |#valid| |main_#t~malloc9.base|)) (= |main_#t~malloc9.offset| main_~head~0.offset))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 245092#(and (= 1 (select |#valid| main_~head~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (or (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 245099#(and (or (and (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (or (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|)) (not (= main_~head~0.base |main_#t~mem7.base|)))) (or (and (= main_~head~0.offset |main_#t~mem7.offset|) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~head~0.offset 0)), 245098#(and (or (and (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (or (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))))) (= main_~head~0.offset 0) (or (and (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 245097#(and (or (and (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc6.base|)) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (= main_~head~0.offset |main_#t~malloc6.offset|) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (or (and (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc6.base|)) (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~malloc6.base|)) (not (= main_~head~0.base |main_#t~malloc6.base|)) (or (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= |main_#t~malloc6.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))))) (= main_~head~0.offset 0)), 245096#(and (or (and (= 1 (select |#valid| main_~head~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (or (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)))))) (and (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~x~0.base main_~head~0.base)))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 245103#(and (or (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 245102#(and (= main_~head~0.offset 0) (or (and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))) (and (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 245101#(and (or (and (= 1 (select |#valid| main_~x~0.base)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))) (and (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base)))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 245100#(and (or (and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (or (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)))))) (and (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base)))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 245107#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= main_~x~0.offset 0)), 245106#(and (or (= 0 main_~x~0.base) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))))) (= 0 main_~x~0.offset)), 245105#(and (= 0 |main_#t~mem20.offset|) (or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) (+ 0 4)))) (= 0 |main_#t~mem20.base|))), 245104#(and (or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 245108#(= 1 (select |#valid| |main_#t~mem15.base|))] [2018-04-10 15:34:46,795 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:46,795 INFO L442 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-04-10 15:34:46,795 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-04-10 15:34:46,795 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=1048, Unknown=0, NotChecked=0, Total=1190 [2018-04-10 15:34:46,795 INFO L87 Difference]: Start difference. First operand 2090 states and 2433 transitions. Second operand 35 states. [2018-04-10 15:34:49,331 WARN L151 SmtUtils]: Spent 105ms on a formula simplification. DAG size of input: 83 DAG size of output 76 [2018-04-10 15:34:49,543 WARN L151 SmtUtils]: Spent 137ms on a formula simplification. DAG size of input: 97 DAG size of output 87 [2018-04-10 15:34:49,700 WARN L151 SmtUtils]: Spent 114ms on a formula simplification. DAG size of input: 93 DAG size of output 85 [2018-04-10 15:34:50,011 WARN L151 SmtUtils]: Spent 122ms on a formula simplification. DAG size of input: 97 DAG size of output 86 [2018-04-10 15:34:50,454 WARN L151 SmtUtils]: Spent 151ms on a formula simplification. DAG size of input: 111 DAG size of output 97 [2018-04-10 15:34:50,592 WARN L151 SmtUtils]: Spent 115ms on a formula simplification. DAG size of input: 87 DAG size of output 77 [2018-04-10 15:34:51,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:34:51,371 INFO L93 Difference]: Finished difference Result 2756 states and 3201 transitions. [2018-04-10 15:34:51,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2018-04-10 15:34:51,372 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 91 [2018-04-10 15:34:51,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:34:51,373 INFO L225 Difference]: With dead ends: 2756 [2018-04-10 15:34:51,373 INFO L226 Difference]: Without dead ends: 2756 [2018-04-10 15:34:51,373 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2413 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=1146, Invalid=7410, Unknown=0, NotChecked=0, Total=8556 [2018-04-10 15:34:51,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2756 states. [2018-04-10 15:34:51,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2756 to 2081. [2018-04-10 15:34:51,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2081 states. [2018-04-10 15:34:51,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2081 states to 2081 states and 2418 transitions. [2018-04-10 15:34:51,383 INFO L78 Accepts]: Start accepts. Automaton has 2081 states and 2418 transitions. Word has length 91 [2018-04-10 15:34:51,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:34:51,383 INFO L459 AbstractCegarLoop]: Abstraction has 2081 states and 2418 transitions. [2018-04-10 15:34:51,383 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-04-10 15:34:51,383 INFO L276 IsEmpty]: Start isEmpty. Operand 2081 states and 2418 transitions. [2018-04-10 15:34:51,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-04-10 15:34:51,384 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:34:51,384 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:34:51,384 INFO L408 AbstractCegarLoop]: === Iteration 117 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:34:51,384 INFO L82 PathProgramCache]: Analyzing trace with hash 1906597867, now seen corresponding path program 3 times [2018-04-10 15:34:51,384 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:34:51,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:34:51,402 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 15:34:52,622 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:52,622 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-10 15:34:52,622 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2018-04-10 15:34:52,622 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 15:34:52,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:52,623 INFO L182 omatonBuilderFactory]: Interpolants [250063#false, 250062#true, 250067#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 250066#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 250065#(= main_~head~0.offset 0), 250064#(= |main_#t~malloc0.offset| 0), 250071#(and (or (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.offset main_~x~0.offset))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 250070#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (= 0 |main_#t~mem7.offset|) (= (select |#valid| main_~head~0.base) 1) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 250069#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1)), 250068#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= 0 |main_#t~malloc6.offset|) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 250075#(and (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))) 1) (not (= |main_#t~mem10.base| main_~head~0.base)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (not (= main_~x~0.base |main_#t~mem10.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 250074#(and (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))) 1) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4)))), 250073#(and (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0) (= 0 |main_#t~malloc9.offset|) (not (= main_~x~0.base |main_#t~malloc9.base|)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~malloc9.base|)) (= 12 (select |#length| |main_#t~malloc9.base|)) (= (select |#valid| |main_#t~malloc9.base|) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 250072#(and (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 250079#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (= (select |#valid| main_~head~0.base) 1) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|)) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))), 250078#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4)))), 250077#(and (not (= main_~x~0.base |main_#t~malloc6.base|)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (not (= main_~head~0.base |main_#t~malloc6.base|)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4))) (= |main_#t~malloc6.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 250076#(and (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4))) 1) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4)))), 250083#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (not (= |main_#t~mem10.base| main_~head~0.base)) (not (= (select |#valid| main_~head~0.base) 0)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4)))) (not (= |main_#t~mem10.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 250082#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (not (= (select |#valid| main_~head~0.base) 0)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (not (= main_~x~0.base main_~head~0.base)) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))), 250081#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (not (= main_~head~0.base |main_#t~malloc9.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~malloc9.base|)) (not (= (select |#valid| main_~head~0.base) 0)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))), 250080#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))), 250087#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= main_~head~0.offset |main_#t~mem7.offset|) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|)) (= main_~head~0.offset 0) (not (= main_~head~0.base |main_#t~mem7.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))), 250086#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))), 250085#(and (= main_~head~0.offset |main_#t~malloc6.offset|) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~malloc6.base|)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (not (= main_~head~0.base |main_#t~malloc6.base|)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))), 250084#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (not (= (select |#valid| main_~head~0.base) 0)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (not (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))), 250091#(and (= 0 |main_#t~mem20.offset|) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem20.base|) (+ 0 4)))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem20.base|) (+ 0 4)))), 250090#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (+ 0 4))))), 250089#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))), 250088#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 12 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 4))))), 250094#(and (= 12 (select |#length| |main_#t~mem15.base|)) (= |main_#t~mem15.offset| 0)), 250093#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= |main_#t~mem13.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4))) (= |main_#t~mem13.offset| main_~x~0.offset) (= main_~x~0.offset 0)), 250092#(and (= 12 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (+ main_~x~0.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (+ main_~x~0.offset 4))) (= 0 main_~x~0.offset))] [2018-04-10 15:34:52,623 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 15:34:52,623 INFO L442 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-04-10 15:34:52,623 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-04-10 15:34:52,623 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=912, Unknown=0, NotChecked=0, Total=1056 [2018-04-10 15:34:52,623 INFO L87 Difference]: Start difference. First operand 2081 states and 2418 transitions. Second operand 33 states. [2018-04-10 15:34:55,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 15:34:55,108 INFO L93 Difference]: Finished difference Result 2802 states and 3253 transitions. [2018-04-10 15:34:55,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-04-10 15:34:55,108 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 91 [2018-04-10 15:34:55,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 15:34:55,110 INFO L225 Difference]: With dead ends: 2802 [2018-04-10 15:34:55,110 INFO L226 Difference]: Without dead ends: 2802 [2018-04-10 15:34:55,110 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1085 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=642, Invalid=3648, Unknown=0, NotChecked=0, Total=4290 [2018-04-10 15:34:55,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2802 states. [2018-04-10 15:34:55,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2802 to 2262. [2018-04-10 15:34:55,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2262 states. [2018-04-10 15:34:55,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2262 states to 2262 states and 2640 transitions. [2018-04-10 15:34:55,123 INFO L78 Accepts]: Start accepts. Automaton has 2262 states and 2640 transitions. Word has length 91 [2018-04-10 15:34:55,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 15:34:55,124 INFO L459 AbstractCegarLoop]: Abstraction has 2262 states and 2640 transitions. [2018-04-10 15:34:55,124 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-04-10 15:34:55,124 INFO L276 IsEmpty]: Start isEmpty. Operand 2262 states and 2640 transitions. [2018-04-10 15:34:55,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-04-10 15:34:55,125 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 15:34:55,125 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 15:34:55,125 INFO L408 AbstractCegarLoop]: === Iteration 118 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr58AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr62EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr61AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr59AssertViolationMEMORY_FREE, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-10 15:34:55,126 INFO L82 PathProgramCache]: Analyzing trace with hash 242016520, now seen corresponding path program 6 times [2018-04-10 15:34:55,126 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 15:34:55,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 15:34:55,137 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. Received shutdown request... [2018-04-10 15:34:55,504 WARN L519 AbstractCegarLoop]: Verification canceled [2018-04-10 15:34:55,508 WARN L197 ceAbstractionStarter]: Timeout [2018-04-10 15:34:55,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.04 03:34:55 BoogieIcfgContainer [2018-04-10 15:34:55,509 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-10 15:34:55,509 INFO L168 Benchmark]: Toolchain (without parser) took 172398.48 ms. Allocated memory was 388.0 MB in the beginning and 1.1 GB in the end (delta: 696.8 MB). Free memory was 321.4 MB in the beginning and 406.6 MB in the end (delta: -85.2 MB). Peak memory consumption was 611.5 MB. Max. memory is 5.3 GB. [2018-04-10 15:34:55,510 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 388.0 MB. Free memory is still 348.6 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-10 15:34:55,511 INFO L168 Benchmark]: CACSL2BoogieTranslator took 240.53 ms. Allocated memory is still 388.0 MB. Free memory was 321.4 MB in the beginning and 293.6 MB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 5.3 GB. [2018-04-10 15:34:55,511 INFO L168 Benchmark]: Boogie Preprocessor took 41.71 ms. Allocated memory is still 388.0 MB. Free memory was 293.6 MB in the beginning and 291.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-04-10 15:34:55,511 INFO L168 Benchmark]: RCFGBuilder took 531.55 ms. Allocated memory was 388.0 MB in the beginning and 588.3 MB in the end (delta: 200.3 MB). Free memory was 291.0 MB in the beginning and 504.6 MB in the end (delta: -213.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 5.3 GB. [2018-04-10 15:34:55,511 INFO L168 Benchmark]: TraceAbstraction took 171581.75 ms. Allocated memory was 588.3 MB in the beginning and 1.1 GB in the end (delta: 496.5 MB). Free memory was 504.6 MB in the beginning and 406.6 MB in the end (delta: 98.0 MB). Peak memory consumption was 594.5 MB. Max. memory is 5.3 GB. [2018-04-10 15:34:55,513 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 388.0 MB. Free memory is still 348.6 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 240.53 ms. Allocated memory is still 388.0 MB. Free memory was 321.4 MB in the beginning and 293.6 MB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 41.71 ms. Allocated memory is still 388.0 MB. Free memory was 293.6 MB in the beginning and 291.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 531.55 ms. Allocated memory was 388.0 MB in the beginning and 588.3 MB in the end (delta: 200.3 MB). Free memory was 291.0 MB in the beginning and 504.6 MB in the end (delta: -213.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 5.3 GB. * TraceAbstraction took 171581.75 ms. Allocated memory was 588.3 MB in the beginning and 1.1 GB in the end (delta: 496.5 MB). Free memory was 504.6 MB in the beginning and 406.6 MB in the end (delta: 98.0 MB). Peak memory consumption was 594.5 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 997]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 997). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 990]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 990). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 1006]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1006). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 990]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 990). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 990]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 990). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 990]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 990). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 986]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 986). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 990]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 990). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 996]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 996). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 990]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 990). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 1007]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 1007). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 987]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 987). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 987]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 987). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 996]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 996). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 987]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 987). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 987]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 987). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 990]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 990). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 1006]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1006). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 987]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 987). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 996]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 996). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 982]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 982). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 990]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 990). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 987]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 987). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 1007]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1007). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 1008]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 1008). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 990]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 990). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 996]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 996). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 987]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 987). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 996]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 996). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 987]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 987). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 997]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 997). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 990]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 990). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 987]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 987). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 987]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 987). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 1007]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 1007). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 990]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 990). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 990]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 990). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 990]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 990). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 990]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 990). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 996]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 996). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 1007]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1007). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 996]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 996). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 990]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 990). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 987]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 987). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 990]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 990). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 987]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 987). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 1005]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1005). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 996]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 996). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 990]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 990). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 990]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 990). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 990]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 990). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 990]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 990). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 986]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 986). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 1008]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 1008). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 987]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 987). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 1005]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1005). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 987]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 987). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 990]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 990). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 987]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 987). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 990]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 990). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 996]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 996). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 987]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 987). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - TimeoutResultAtElement [Line: 996]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 996). Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 3, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 48. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 148 locations, 63 error locations. TIMEOUT Result, 171.5s OverallTime, 118 OverallIterations, 4 TraceHistogramMax, 127.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 11674 SDtfs, 74855 SDslu, 109156 SDs, 0 SdLazy, 143741 SolverSat, 13200 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 54.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5155 GetRequests, 296 SyntacticMatches, 229 SemanticMatches, 4630 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61343 ImplicationChecksByTransitivity, 94.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2262occurred in iteration=117, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 156/2582 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 117 MinimizatonAttempts, 27136 StatesRemovedByMinimization, 115 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 39.8s InterpolantComputationTime, 7619 NumberOfCodeBlocks, 7619 NumberOfCodeBlocksAsserted, 117 NumberOfCheckSat, 7502 ConstructedInterpolants, 0 QuantifiedInterpolants, 11433048 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 117 InterpolantComputations, 21 PerfectInterpolantSequences, 156/2582 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/sll-optional_true-unreach-call_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_Array.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-10_15-34-55-520.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/sll-optional_true-unreach-call_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_Array.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-10_15-34-55-520.csv Completed graceful shutdown