java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv --cacsl2boogietranslator.bitprecise.bitfields false -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_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 [2018-04-11 14:47:38,513 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-11 14:47:38,514 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-11 14:47:38,525 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-11 14:47:38,525 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-11 14:47:38,526 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-11 14:47:38,526 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-11 14:47:38,528 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-11 14:47:38,529 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-11 14:47:38,530 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-11 14:47:38,531 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-11 14:47:38,531 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-11 14:47:38,532 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-11 14:47:38,533 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-11 14:47:38,534 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-11 14:47:38,535 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-11 14:47:38,537 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-11 14:47:38,539 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-11 14:47:38,539 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-11 14:47:38,540 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-11 14:47:38,542 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-11 14:47:38,542 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-11 14:47:38,542 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-11 14:47:38,543 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-11 14:47:38,544 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-11 14:47:38,545 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-11 14:47:38,545 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-11 14:47:38,546 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-11 14:47:38,547 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-11 14:47:38,547 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-11 14:47:38,547 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-11 14:47:38,548 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 [2018-04-11 14:47:38,568 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-11 14:47:38,568 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-11 14:47:38,569 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-11 14:47:38,569 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-11 14:47:38,569 INFO L133 SettingsManager]: * Use SBE=true [2018-04-11 14:47:38,569 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-11 14:47:38,570 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-11 14:47:38,570 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-11 14:47:38,570 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-11 14:47:38,570 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-11 14:47:38,570 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-11 14:47:38,570 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-11 14:47:38,570 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-11 14:47:38,571 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-11 14:47:38,571 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-11 14:47:38,571 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-11 14:47:38,571 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-11 14:47:38,571 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-11 14:47:38,571 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-11 14:47:38,572 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 14:47:38,572 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-11 14:47:38,572 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-04-11 14:47:38,599 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-11 14:47:38,610 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-11 14:47:38,614 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-11 14:47:38,615 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-11 14:47:38,616 INFO L276 PluginConnector]: CDTParser initialized [2018-04-11 14:47:38,616 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 [2018-04-11 14:47:38,897 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG4017069c0 [2018-04-11 14:47:39,046 INFO L287 CDTParser]: IsIndexed: true [2018-04-11 14:47:39,047 INFO L288 CDTParser]: Found 1 translation units. [2018-04-11 14:47:39,047 INFO L168 CDTParser]: Scanning sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:47:39,054 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-11 14:47:39,055 INFO L215 ultiparseSymbolTable]: [2018-04-11 14:47:39,055 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-11 14:47:39,055 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:47:39,055 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-11 14:47:39,055 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 [2018-04-11 14:47:39,055 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 [2018-04-11 14:47:39,055 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 [2018-04-11 14:47:39,056 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 [2018-04-11 14:47:39,056 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 [2018-04-11 14:47:39,056 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 [2018-04-11 14:47:39,056 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 [2018-04-11 14:47:39,056 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 [2018-04-11 14:47:39,056 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 [2018-04-11 14:47:39,056 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 [2018-04-11 14:47:39,056 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 [2018-04-11 14:47:39,056 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 [2018-04-11 14:47:39,056 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 [2018-04-11 14:47:39,056 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 [2018-04-11 14:47:39,056 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 [2018-04-11 14:47:39,057 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 [2018-04-11 14:47:39,057 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 [2018-04-11 14:47:39,057 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 [2018-04-11 14:47:39,057 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 [2018-04-11 14:47:39,057 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 [2018-04-11 14:47:39,057 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 [2018-04-11 14:47:39,057 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 [2018-04-11 14:47:39,057 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 [2018-04-11 14:47:39,057 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 [2018-04-11 14:47:39,057 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 [2018-04-11 14:47:39,057 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 [2018-04-11 14:47:39,057 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 [2018-04-11 14:47:39,057 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 [2018-04-11 14:47:39,057 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 [2018-04-11 14:47:39,057 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 [2018-04-11 14:47:39,057 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 [2018-04-11 14:47:39,058 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 [2018-04-11 14:47:39,058 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 [2018-04-11 14:47:39,058 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 [2018-04-11 14:47:39,058 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 [2018-04-11 14:47:39,058 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 [2018-04-11 14:47:39,058 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 [2018-04-11 14:47:39,058 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 [2018-04-11 14:47:39,058 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 [2018-04-11 14:47:39,058 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 [2018-04-11 14:47:39,058 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 [2018-04-11 14:47:39,058 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 [2018-04-11 14:47:39,059 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 [2018-04-11 14:47:39,059 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 [2018-04-11 14:47:39,059 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 [2018-04-11 14:47:39,059 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 [2018-04-11 14:47:39,059 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 [2018-04-11 14:47:39,059 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 [2018-04-11 14:47:39,059 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 [2018-04-11 14:47:39,059 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 [2018-04-11 14:47:39,059 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 [2018-04-11 14:47:39,059 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 [2018-04-11 14:47:39,059 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 [2018-04-11 14:47:39,060 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 [2018-04-11 14:47:39,060 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 [2018-04-11 14:47:39,060 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 [2018-04-11 14:47:39,060 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 [2018-04-11 14:47:39,060 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 [2018-04-11 14:47:39,060 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 [2018-04-11 14:47:39,060 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 [2018-04-11 14:47:39,060 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 [2018-04-11 14:47:39,060 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 [2018-04-11 14:47:39,060 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 [2018-04-11 14:47:39,060 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 [2018-04-11 14:47:39,061 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 [2018-04-11 14:47:39,061 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 [2018-04-11 14:47:39,061 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 [2018-04-11 14:47:39,061 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 [2018-04-11 14:47:39,061 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 [2018-04-11 14:47:39,061 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 [2018-04-11 14:47:39,061 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 [2018-04-11 14:47:39,061 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 [2018-04-11 14:47:39,061 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 [2018-04-11 14:47:39,061 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 [2018-04-11 14:47:39,061 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 [2018-04-11 14:47:39,061 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 [2018-04-11 14:47:39,062 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 [2018-04-11 14:47:39,062 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 [2018-04-11 14:47:39,062 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 [2018-04-11 14:47:39,062 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 [2018-04-11 14:47:39,062 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 [2018-04-11 14:47:39,062 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 [2018-04-11 14:47:39,062 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 [2018-04-11 14:47:39,062 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 [2018-04-11 14:47:39,062 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 [2018-04-11 14:47:39,062 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 [2018-04-11 14:47:39,063 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 [2018-04-11 14:47:39,063 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 [2018-04-11 14:47:39,063 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 [2018-04-11 14:47:39,063 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 [2018-04-11 14:47:39,063 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 [2018-04-11 14:47:39,063 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 [2018-04-11 14:47:39,063 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 [2018-04-11 14:47:39,063 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 [2018-04-11 14:47:39,063 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 [2018-04-11 14:47:39,063 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 [2018-04-11 14:47:39,063 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 [2018-04-11 14:47:39,063 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 [2018-04-11 14:47:39,064 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 [2018-04-11 14:47:39,064 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 [2018-04-11 14:47:39,064 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 [2018-04-11 14:47:39,064 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 [2018-04-11 14:47:39,064 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 [2018-04-11 14:47:39,064 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 [2018-04-11 14:47:39,064 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 [2018-04-11 14:47:39,064 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 [2018-04-11 14:47:39,064 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 [2018-04-11 14:47:39,064 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 [2018-04-11 14:47:39,064 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 [2018-04-11 14:47:39,065 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 [2018-04-11 14:47:39,065 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 [2018-04-11 14:47:39,065 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 [2018-04-11 14:47:39,065 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 [2018-04-11 14:47:39,065 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 [2018-04-11 14:47:39,065 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 [2018-04-11 14:47:39,065 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 [2018-04-11 14:47:39,065 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 [2018-04-11 14:47:39,065 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 [2018-04-11 14:47:39,065 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 [2018-04-11 14:47:39,065 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 [2018-04-11 14:47:39,065 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 [2018-04-11 14:47:39,105 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG4017069c0 [2018-04-11 14:47:39,109 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-11 14:47:39,110 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-11 14:47:39,111 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-11 14:47:39,111 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-11 14:47:39,115 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-11 14:47:39,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 02:47:39" (1/1) ... [2018-04-11 14:47:39,117 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10aef8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 02:47:39, skipping insertion in model container [2018-04-11 14:47:39,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 02:47:39" (1/1) ... [2018-04-11 14:47:39,128 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 14:47:39,155 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 14:47:39,312 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 14:47:39,355 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 14:47:39,361 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 115 non ball SCCs. Number of states in SCCs 115. [2018-04-11 14:47:39,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 02:47:39 WrapperNode [2018-04-11 14:47:39,396 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-11 14:47:39,396 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-11 14:47:39,397 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-11 14:47:39,397 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-11 14:47:39,405 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 02:47:39" (1/1) ... [2018-04-11 14:47:39,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 02:47:39" (1/1) ... [2018-04-11 14:47:39,419 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 02:47:39" (1/1) ... [2018-04-11 14:47:39,419 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 02:47:39" (1/1) ... [2018-04-11 14:47:39,429 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 02:47:39" (1/1) ... [2018-04-11 14:47:39,435 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 02:47:39" (1/1) ... [2018-04-11 14:47:39,437 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 02:47:39" (1/1) ... [2018-04-11 14:47:39,441 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-11 14:47:39,442 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-11 14:47:39,442 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-11 14:47:39,442 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-11 14:47:39,443 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 02:47:39" (1/1) ... No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 14:47:39,525 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-11 14:47:39,525 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-11 14:47:39,525 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-11 14:47:39,525 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-11 14:47:39,525 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-11 14:47:39,525 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-11 14:47:39,526 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-11 14:47:39,526 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-11 14:47:39,526 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-11 14:47:39,526 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-11 14:47:39,526 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-11 14:47:39,526 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-11 14:47:39,526 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-11 14:47:39,526 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-11 14:47:39,526 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-11 14:47:39,526 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-11 14:47:39,526 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-11 14:47:39,526 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-11 14:47:39,527 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-11 14:47:39,527 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-11 14:47:39,527 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-11 14:47:39,527 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-11 14:47:39,527 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-11 14:47:39,527 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-11 14:47:39,527 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-11 14:47:39,527 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-11 14:47:39,527 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-11 14:47:39,528 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-11 14:47:39,528 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-11 14:47:39,528 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-11 14:47:39,528 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-11 14:47:39,528 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-11 14:47:39,528 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-11 14:47:39,528 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-11 14:47:39,528 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-11 14:47:39,528 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-11 14:47:39,528 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-11 14:47:39,529 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-11 14:47:39,529 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-11 14:47:39,529 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-11 14:47:39,529 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-11 14:47:39,529 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-11 14:47:39,529 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-11 14:47:39,529 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-11 14:47:39,529 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-11 14:47:39,529 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-11 14:47:39,530 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-11 14:47:39,530 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-11 14:47:39,530 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-11 14:47:39,530 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-11 14:47:39,530 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-11 14:47:39,530 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-11 14:47:39,530 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-11 14:47:39,530 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-11 14:47:39,530 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-11 14:47:39,530 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-11 14:47:39,531 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-11 14:47:39,531 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-11 14:47:39,531 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-11 14:47:39,531 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-11 14:47:39,531 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-11 14:47:39,531 INFO L128 BoogieDeclarations]: Found specification of procedure aligned_alloc [2018-04-11 14:47:39,531 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-11 14:47:39,531 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-11 14:47:39,531 INFO L128 BoogieDeclarations]: Found specification of procedure at_quick_exit [2018-04-11 14:47:39,531 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-11 14:47:39,532 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-11 14:47:39,532 INFO L128 BoogieDeclarations]: Found specification of procedure quick_exit [2018-04-11 14:47:39,532 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-11 14:47:39,532 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-11 14:47:39,532 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-11 14:47:39,532 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-11 14:47:39,532 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-11 14:47:39,532 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-11 14:47:39,532 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-11 14:47:39,532 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-11 14:47:39,532 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-11 14:47:39,533 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-11 14:47:39,533 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-11 14:47:39,533 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-11 14:47:39,533 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-11 14:47:39,533 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-11 14:47:39,533 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-11 14:47:39,533 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-11 14:47:39,533 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-11 14:47:39,533 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-11 14:47:39,533 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-11 14:47:39,534 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-11 14:47:39,534 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-11 14:47:39,534 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-11 14:47:39,534 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-11 14:47:39,534 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-11 14:47:39,534 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-11 14:47:39,534 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-11 14:47:39,534 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-11 14:47:39,534 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-11 14:47:39,534 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-11 14:47:39,534 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-11 14:47:39,535 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-11 14:47:39,535 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-11 14:47:39,535 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-11 14:47:39,535 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-11 14:47:39,535 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-11 14:47:39,535 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-11 14:47:39,535 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-11 14:47:39,535 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-11 14:47:39,535 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-11 14:47:39,535 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-04-11 14:47:39,535 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-11 14:47:39,536 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-11 14:47:39,536 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-04-11 14:47:39,536 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-11 14:47:39,536 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-04-11 14:47:39,536 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-11 14:47:39,536 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-11 14:47:39,536 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-11 14:47:39,536 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-11 14:47:39,536 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-11 14:47:39,978 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-11 14:47:39,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 02:47:39 BoogieIcfgContainer [2018-04-11 14:47:39,978 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-11 14:47:39,979 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-11 14:47:39,979 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-11 14:47:39,981 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-11 14:47:39,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.04 02:47:39" (1/3) ... [2018-04-11 14:47:39,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9d2557a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 02:47:39, skipping insertion in model container [2018-04-11 14:47:39,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 02:47:39" (2/3) ... [2018-04-11 14:47:39,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9d2557a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 02:47:39, skipping insertion in model container [2018-04-11 14:47:39,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 02:47:39" (3/3) ... [2018-04-11 14:47:39,984 INFO L107 eAbstractionObserver]: Analyzing ICFG sll-optional_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:47:39,990 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-04-11 14:47:39,997 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 63 error locations. [2018-04-11 14:47:40,022 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-11 14:47:40,023 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-11 14:47:40,023 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-11 14:47:40,023 INFO L371 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-04-11 14:47:40,023 INFO L372 AbstractCegarLoop]: Backedges is CANONICAL [2018-04-11 14:47:40,023 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-11 14:47:40,023 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-11 14:47:40,023 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-11 14:47:40,023 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-11 14:47:40,024 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-11 14:47:40,035 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states. [2018-04-11 14:47:40,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-04-11 14:47:40,042 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:47:40,043 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 14:47:40,043 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]=== [2018-04-11 14:47:40,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1599603740, now seen corresponding path program 1 times [2018-04-11 14:47:40,093 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:47:40,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:47:40,125 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:47:40,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:40,173 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 14:47:40,174 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 14:47:40,174 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:47:40,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:40,175 INFO L182 omatonBuilderFactory]: Interpolants [151#true, 152#false, 153#(= 1 (select |#valid| |main_#t~malloc0.base|)), 154#(= 1 (select |#valid| main_~head~0.base))] [2018-04-11 14:47:40,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:40,176 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 14:47:40,186 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 14:47:40,186 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 14:47:40,188 INFO L87 Difference]: Start difference. First operand 148 states. Second operand 4 states. [2018-04-11 14:47:40,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:47:40,371 INFO L93 Difference]: Finished difference Result 168 states and 180 transitions. [2018-04-11 14:47:40,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 14:47:40,372 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-04-11 14:47:40,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:47:40,382 INFO L225 Difference]: With dead ends: 168 [2018-04-11 14:47:40,382 INFO L226 Difference]: Without dead ends: 164 [2018-04-11 14:47:40,384 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-11 14:47:40,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2018-04-11 14:47:40,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 138. [2018-04-11 14:47:40,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-04-11 14:47:40,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 149 transitions. [2018-04-11 14:47:40,415 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 149 transitions. Word has length 8 [2018-04-11 14:47:40,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:47:40,415 INFO L459 AbstractCegarLoop]: Abstraction has 138 states and 149 transitions. [2018-04-11 14:47:40,415 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 14:47:40,415 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 149 transitions. [2018-04-11 14:47:40,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-04-11 14:47:40,415 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:47:40,415 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 14:47:40,415 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]=== [2018-04-11 14:47:40,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1599603741, now seen corresponding path program 1 times [2018-04-11 14:47:40,417 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:47:40,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:47:40,429 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:47:40,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:40,466 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 14:47:40,466 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 14:47:40,466 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:47:40,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:40,466 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] [2018-04-11 14:47:40,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:40,467 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 14:47:40,468 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 14:47:40,468 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 14:47:40,468 INFO L87 Difference]: Start difference. First operand 138 states and 149 transitions. Second operand 4 states. [2018-04-11 14:47:40,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:47:40,560 INFO L93 Difference]: Finished difference Result 135 states and 146 transitions. [2018-04-11 14:47:40,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-11 14:47:40,560 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-04-11 14:47:40,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:47:40,561 INFO L225 Difference]: With dead ends: 135 [2018-04-11 14:47:40,561 INFO L226 Difference]: Without dead ends: 135 [2018-04-11 14:47:40,562 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-11 14:47:40,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2018-04-11 14:47:40,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 130. [2018-04-11 14:47:40,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2018-04-11 14:47:40,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 141 transitions. [2018-04-11 14:47:40,569 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 141 transitions. Word has length 8 [2018-04-11 14:47:40,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:47:40,570 INFO L459 AbstractCegarLoop]: Abstraction has 130 states and 141 transitions. [2018-04-11 14:47:40,570 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 14:47:40,570 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 141 transitions. [2018-04-11 14:47:40,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-04-11 14:47:40,570 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:47:40,570 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 14:47:40,571 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]=== [2018-04-11 14:47:40,571 INFO L82 PathProgramCache]: Analyzing trace with hash 723052242, now seen corresponding path program 1 times [2018-04-11 14:47:40,573 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:47:40,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:47:40,587 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:47:40,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:40,642 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 14:47:40,642 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 14:47:40,642 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:47:40,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:40,643 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] [2018-04-11 14:47:40,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:40,643 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 14:47:40,643 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 14:47:40,643 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-11 14:47:40,644 INFO L87 Difference]: Start difference. First operand 130 states and 141 transitions. Second operand 5 states. [2018-04-11 14:47:40,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:47:40,910 INFO L93 Difference]: Finished difference Result 279 states and 303 transitions. [2018-04-11 14:47:40,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-11 14:47:40,910 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-04-11 14:47:40,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:47:40,912 INFO L225 Difference]: With dead ends: 279 [2018-04-11 14:47:40,912 INFO L226 Difference]: Without dead ends: 279 [2018-04-11 14:47:40,912 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 [2018-04-11 14:47:40,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2018-04-11 14:47:40,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 129. [2018-04-11 14:47:40,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2018-04-11 14:47:40,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 140 transitions. [2018-04-11 14:47:40,919 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 140 transitions. Word has length 15 [2018-04-11 14:47:40,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:47:40,920 INFO L459 AbstractCegarLoop]: Abstraction has 129 states and 140 transitions. [2018-04-11 14:47:40,920 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 14:47:40,920 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 140 transitions. [2018-04-11 14:47:40,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-04-11 14:47:40,920 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:47:40,920 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 14:47:40,920 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]=== [2018-04-11 14:47:40,921 INFO L82 PathProgramCache]: Analyzing trace with hash 723052243, now seen corresponding path program 1 times [2018-04-11 14:47:40,922 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:47:40,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:47:40,935 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:47:40,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:40,983 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 14:47:40,983 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 14:47:40,983 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:47:40,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:40,984 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|)))] [2018-04-11 14:47:40,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:40,984 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 14:47:40,984 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 14:47:40,984 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-11 14:47:40,984 INFO L87 Difference]: Start difference. First operand 129 states and 140 transitions. Second operand 5 states. [2018-04-11 14:47:41,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:47:41,177 INFO L93 Difference]: Finished difference Result 235 states and 255 transitions. [2018-04-11 14:47:41,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 14:47:41,177 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-04-11 14:47:41,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:47:41,178 INFO L225 Difference]: With dead ends: 235 [2018-04-11 14:47:41,178 INFO L226 Difference]: Without dead ends: 235 [2018-04-11 14:47:41,179 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 [2018-04-11 14:47:41,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2018-04-11 14:47:41,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 128. [2018-04-11 14:47:41,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2018-04-11 14:47:41,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 139 transitions. [2018-04-11 14:47:41,186 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 139 transitions. Word has length 15 [2018-04-11 14:47:41,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:47:41,186 INFO L459 AbstractCegarLoop]: Abstraction has 128 states and 139 transitions. [2018-04-11 14:47:41,186 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 14:47:41,186 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 139 transitions. [2018-04-11 14:47:41,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-04-11 14:47:41,187 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:47:41,187 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 14:47:41,187 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]=== [2018-04-11 14:47:41,187 INFO L82 PathProgramCache]: Analyzing trace with hash 863312645, now seen corresponding path program 1 times [2018-04-11 14:47:41,189 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:47:41,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:47:41,203 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:47:41,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:41,240 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 14:47:41,240 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 14:47:41,241 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:47:41,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:41,241 INFO L182 omatonBuilderFactory]: Interpolants [1527#true, 1528#false, 1529#(= 1 (select |#valid| main_~head~0.base)), 1530#(= 1 (select |#valid| main_~x~0.base))] [2018-04-11 14:47:41,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:41,241 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 14:47:41,241 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 14:47:41,241 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 14:47:41,242 INFO L87 Difference]: Start difference. First operand 128 states and 139 transitions. Second operand 4 states. [2018-04-11 14:47:41,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:47:41,335 INFO L93 Difference]: Finished difference Result 133 states and 144 transitions. [2018-04-11 14:47:41,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 14:47:41,335 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2018-04-11 14:47:41,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:47:41,336 INFO L225 Difference]: With dead ends: 133 [2018-04-11 14:47:41,336 INFO L226 Difference]: Without dead ends: 133 [2018-04-11 14:47:41,336 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-11 14:47:41,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2018-04-11 14:47:41,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 124. [2018-04-11 14:47:41,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-04-11 14:47:41,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 140 transitions. [2018-04-11 14:47:41,341 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 140 transitions. Word has length 19 [2018-04-11 14:47:41,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:47:41,342 INFO L459 AbstractCegarLoop]: Abstraction has 124 states and 140 transitions. [2018-04-11 14:47:41,342 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 14:47:41,342 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 140 transitions. [2018-04-11 14:47:41,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-04-11 14:47:41,342 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:47:41,343 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 14:47:41,343 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]=== [2018-04-11 14:47:41,343 INFO L82 PathProgramCache]: Analyzing trace with hash 863312646, now seen corresponding path program 1 times [2018-04-11 14:47:41,344 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:47:41,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:47:41,355 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:47:41,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:41,416 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 14:47:41,416 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-11 14:47:41,416 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:47:41,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:41,417 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] [2018-04-11 14:47:41,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:41,417 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-11 14:47:41,417 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-11 14:47:41,418 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-04-11 14:47:41,418 INFO L87 Difference]: Start difference. First operand 124 states and 140 transitions. Second operand 7 states. [2018-04-11 14:47:41,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:47:41,600 INFO L93 Difference]: Finished difference Result 175 states and 192 transitions. [2018-04-11 14:47:41,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 14:47:41,600 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-04-11 14:47:41,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:47:41,601 INFO L225 Difference]: With dead ends: 175 [2018-04-11 14:47:41,601 INFO L226 Difference]: Without dead ends: 175 [2018-04-11 14:47:41,601 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 [2018-04-11 14:47:41,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2018-04-11 14:47:41,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 154. [2018-04-11 14:47:41,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2018-04-11 14:47:41,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 176 transitions. [2018-04-11 14:47:41,606 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 176 transitions. Word has length 19 [2018-04-11 14:47:41,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:47:41,606 INFO L459 AbstractCegarLoop]: Abstraction has 154 states and 176 transitions. [2018-04-11 14:47:41,607 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-11 14:47:41,607 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 176 transitions. [2018-04-11 14:47:41,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-04-11 14:47:41,607 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:47:41,607 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 14:47:41,607 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]=== [2018-04-11 14:47:41,608 INFO L82 PathProgramCache]: Analyzing trace with hash 682869627, now seen corresponding path program 1 times [2018-04-11 14:47:41,609 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:47:41,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:47:41,619 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:47:41,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:41,657 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 14:47:41,657 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 14:47:41,657 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:47:41,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:41,657 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))] [2018-04-11 14:47:41,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:41,658 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 14:47:41,658 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 14:47:41,658 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-11 14:47:41,658 INFO L87 Difference]: Start difference. First operand 154 states and 176 transitions. Second operand 6 states. [2018-04-11 14:47:41,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:47:41,854 INFO L93 Difference]: Finished difference Result 222 states and 255 transitions. [2018-04-11 14:47:41,855 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-11 14:47:41,855 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2018-04-11 14:47:41,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:47:41,856 INFO L225 Difference]: With dead ends: 222 [2018-04-11 14:47:41,856 INFO L226 Difference]: Without dead ends: 222 [2018-04-11 14:47:41,856 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 [2018-04-11 14:47:41,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2018-04-11 14:47:41,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 153. [2018-04-11 14:47:41,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2018-04-11 14:47:41,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 175 transitions. [2018-04-11 14:47:41,862 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 175 transitions. Word has length 22 [2018-04-11 14:47:41,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:47:41,862 INFO L459 AbstractCegarLoop]: Abstraction has 153 states and 175 transitions. [2018-04-11 14:47:41,862 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 14:47:41,862 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 175 transitions. [2018-04-11 14:47:41,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-04-11 14:47:41,863 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:47:41,863 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 14:47:41,863 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]=== [2018-04-11 14:47:41,863 INFO L82 PathProgramCache]: Analyzing trace with hash 682869628, now seen corresponding path program 1 times [2018-04-11 14:47:41,864 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:47:41,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:47:41,874 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:47:41,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:41,922 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 14:47:41,922 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 14:47:41,922 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:47:41,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:41,923 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))] [2018-04-11 14:47:41,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:41,923 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 14:47:41,923 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 14:47:41,924 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-11 14:47:41,924 INFO L87 Difference]: Start difference. First operand 153 states and 175 transitions. Second operand 6 states. [2018-04-11 14:47:42,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:47:42,221 INFO L93 Difference]: Finished difference Result 236 states and 274 transitions. [2018-04-11 14:47:42,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-11 14:47:42,223 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2018-04-11 14:47:42,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:47:42,224 INFO L225 Difference]: With dead ends: 236 [2018-04-11 14:47:42,224 INFO L226 Difference]: Without dead ends: 236 [2018-04-11 14:47:42,224 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 [2018-04-11 14:47:42,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2018-04-11 14:47:42,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 137. [2018-04-11 14:47:42,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2018-04-11 14:47:42,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 158 transitions. [2018-04-11 14:47:42,228 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 158 transitions. Word has length 22 [2018-04-11 14:47:42,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:47:42,228 INFO L459 AbstractCegarLoop]: Abstraction has 137 states and 158 transitions. [2018-04-11 14:47:42,228 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 14:47:42,229 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 158 transitions. [2018-04-11 14:47:42,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-04-11 14:47:42,229 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:47:42,229 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] [2018-04-11 14:47:42,229 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]=== [2018-04-11 14:47:42,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1146686030, now seen corresponding path program 1 times [2018-04-11 14:47:42,230 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:47:42,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:47:42,237 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:47:42,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:42,260 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 14:47:42,260 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 14:47:42,260 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:47:42,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:42,260 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] [2018-04-11 14:47:42,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:42,261 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 14:47:42,261 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 14:47:42,261 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-11 14:47:42,261 INFO L87 Difference]: Start difference. First operand 137 states and 158 transitions. Second operand 5 states. [2018-04-11 14:47:42,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:47:42,342 INFO L93 Difference]: Finished difference Result 158 states and 175 transitions. [2018-04-11 14:47:42,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 14:47:42,342 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2018-04-11 14:47:42,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:47:42,343 INFO L225 Difference]: With dead ends: 158 [2018-04-11 14:47:42,343 INFO L226 Difference]: Without dead ends: 158 [2018-04-11 14:47:42,344 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 [2018-04-11 14:47:42,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2018-04-11 14:47:42,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 137. [2018-04-11 14:47:42,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2018-04-11 14:47:42,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 156 transitions. [2018-04-11 14:47:42,347 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 156 transitions. Word has length 25 [2018-04-11 14:47:42,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:47:42,347 INFO L459 AbstractCegarLoop]: Abstraction has 137 states and 156 transitions. [2018-04-11 14:47:42,347 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 14:47:42,347 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 156 transitions. [2018-04-11 14:47:42,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-04-11 14:47:42,348 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:47:42,348 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] [2018-04-11 14:47:42,348 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]=== [2018-04-11 14:47:42,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1880164707, now seen corresponding path program 1 times [2018-04-11 14:47:42,349 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:47:42,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:47:42,357 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:47:42,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:42,371 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 14:47:42,371 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 14:47:42,371 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:47:42,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:42,371 INFO L182 omatonBuilderFactory]: Interpolants [3216#(not |main_#t~short14|), 3217#(not |main_#t~short17|), 3214#true, 3215#false] [2018-04-11 14:47:42,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:42,372 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 14:47:42,372 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 14:47:42,372 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 14:47:42,372 INFO L87 Difference]: Start difference. First operand 137 states and 156 transitions. Second operand 4 states. [2018-04-11 14:47:42,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:47:42,389 INFO L93 Difference]: Finished difference Result 163 states and 186 transitions. [2018-04-11 14:47:42,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 14:47:42,389 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2018-04-11 14:47:42,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:47:42,390 INFO L225 Difference]: With dead ends: 163 [2018-04-11 14:47:42,390 INFO L226 Difference]: Without dead ends: 163 [2018-04-11 14:47:42,390 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-11 14:47:42,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2018-04-11 14:47:42,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 141. [2018-04-11 14:47:42,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2018-04-11 14:47:42,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 160 transitions. [2018-04-11 14:47:42,394 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 160 transitions. Word has length 28 [2018-04-11 14:47:42,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:47:42,394 INFO L459 AbstractCegarLoop]: Abstraction has 141 states and 160 transitions. [2018-04-11 14:47:42,394 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 14:47:42,394 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 160 transitions. [2018-04-11 14:47:42,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-04-11 14:47:42,395 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:47:42,395 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] [2018-04-11 14:47:42,395 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]=== [2018-04-11 14:47:42,395 INFO L82 PathProgramCache]: Analyzing trace with hash -925635600, now seen corresponding path program 1 times [2018-04-11 14:47:42,396 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:47:42,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:47:42,405 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:47:42,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:42,437 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 14:47:42,437 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 14:47:42,437 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:47:42,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:42,437 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|))] [2018-04-11 14:47:42,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:42,438 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 14:47:42,438 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 14:47:42,438 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-11 14:47:42,438 INFO L87 Difference]: Start difference. First operand 141 states and 160 transitions. Second operand 5 states. [2018-04-11 14:47:42,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:47:42,601 INFO L93 Difference]: Finished difference Result 243 states and 277 transitions. [2018-04-11 14:47:42,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-11 14:47:42,602 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2018-04-11 14:47:42,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:47:42,602 INFO L225 Difference]: With dead ends: 243 [2018-04-11 14:47:42,602 INFO L226 Difference]: Without dead ends: 243 [2018-04-11 14:47:42,603 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 [2018-04-11 14:47:42,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2018-04-11 14:47:42,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 140. [2018-04-11 14:47:42,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2018-04-11 14:47:42,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 159 transitions. [2018-04-11 14:47:42,607 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 159 transitions. Word has length 29 [2018-04-11 14:47:42,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:47:42,607 INFO L459 AbstractCegarLoop]: Abstraction has 140 states and 159 transitions. [2018-04-11 14:47:42,607 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 14:47:42,607 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 159 transitions. [2018-04-11 14:47:42,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-04-11 14:47:42,608 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:47:42,608 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] [2018-04-11 14:47:42,608 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]=== [2018-04-11 14:47:42,608 INFO L82 PathProgramCache]: Analyzing trace with hash -925635599, now seen corresponding path program 1 times [2018-04-11 14:47:42,609 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:47:42,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:47:42,619 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:47:42,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:42,660 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 14:47:42,660 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 14:47:42,660 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:47:42,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:42,660 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] [2018-04-11 14:47:42,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:42,661 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 14:47:42,661 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 14:47:42,661 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-11 14:47:42,661 INFO L87 Difference]: Start difference. First operand 140 states and 159 transitions. Second operand 5 states. [2018-04-11 14:47:42,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:47:42,881 INFO L93 Difference]: Finished difference Result 252 states and 288 transitions. [2018-04-11 14:47:42,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 14:47:42,881 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2018-04-11 14:47:42,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:47:42,882 INFO L225 Difference]: With dead ends: 252 [2018-04-11 14:47:42,882 INFO L226 Difference]: Without dead ends: 252 [2018-04-11 14:47:42,883 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 [2018-04-11 14:47:42,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2018-04-11 14:47:42,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 139. [2018-04-11 14:47:42,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2018-04-11 14:47:42,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 158 transitions. [2018-04-11 14:47:42,886 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 158 transitions. Word has length 29 [2018-04-11 14:47:42,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:47:42,887 INFO L459 AbstractCegarLoop]: Abstraction has 139 states and 158 transitions. [2018-04-11 14:47:42,887 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 14:47:42,887 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 158 transitions. [2018-04-11 14:47:42,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-04-11 14:47:42,888 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:47:42,888 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] [2018-04-11 14:47:42,888 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]=== [2018-04-11 14:47:42,888 INFO L82 PathProgramCache]: Analyzing trace with hash 1714976192, now seen corresponding path program 1 times [2018-04-11 14:47:42,889 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:47:42,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:47:42,902 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:47:43,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:43,052 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 14:47:43,052 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-04-11 14:47:43,052 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:47:43,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:43,053 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|))] [2018-04-11 14:47:43,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:43,053 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-11 14:47:43,053 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-11 14:47:43,053 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-04-11 14:47:43,053 INFO L87 Difference]: Start difference. First operand 139 states and 158 transitions. Second operand 10 states. [2018-04-11 14:47:43,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:47:43,328 INFO L93 Difference]: Finished difference Result 249 states and 282 transitions. [2018-04-11 14:47:43,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-11 14:47:43,329 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 30 [2018-04-11 14:47:43,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:47:43,330 INFO L225 Difference]: With dead ends: 249 [2018-04-11 14:47:43,330 INFO L226 Difference]: Without dead ends: 249 [2018-04-11 14:47:43,330 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 [2018-04-11 14:47:43,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2018-04-11 14:47:43,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 156. [2018-04-11 14:47:43,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2018-04-11 14:47:43,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 179 transitions. [2018-04-11 14:47:43,334 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 179 transitions. Word has length 30 [2018-04-11 14:47:43,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:47:43,335 INFO L459 AbstractCegarLoop]: Abstraction has 156 states and 179 transitions. [2018-04-11 14:47:43,335 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-11 14:47:43,335 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 179 transitions. [2018-04-11 14:47:43,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-04-11 14:47:43,335 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:47:43,335 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] [2018-04-11 14:47:43,335 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]=== [2018-04-11 14:47:43,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1714976193, now seen corresponding path program 1 times [2018-04-11 14:47:43,337 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:47:43,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:47:43,351 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:47:43,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:43,449 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 14:47:43,449 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-04-11 14:47:43,449 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:47:43,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:43,450 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))] [2018-04-11 14:47:43,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:43,450 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-11 14:47:43,450 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-11 14:47:43,450 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-04-11 14:47:43,450 INFO L87 Difference]: Start difference. First operand 156 states and 179 transitions. Second operand 9 states. [2018-04-11 14:47:43,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:47:43,738 INFO L93 Difference]: Finished difference Result 230 states and 258 transitions. [2018-04-11 14:47:43,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-11 14:47:43,738 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2018-04-11 14:47:43,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:47:43,738 INFO L225 Difference]: With dead ends: 230 [2018-04-11 14:47:43,738 INFO L226 Difference]: Without dead ends: 230 [2018-04-11 14:47:43,739 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2018-04-11 14:47:43,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2018-04-11 14:47:43,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 152. [2018-04-11 14:47:43,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-04-11 14:47:43,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 173 transitions. [2018-04-11 14:47:43,741 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 173 transitions. Word has length 30 [2018-04-11 14:47:43,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:47:43,741 INFO L459 AbstractCegarLoop]: Abstraction has 152 states and 173 transitions. [2018-04-11 14:47:43,741 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-11 14:47:43,741 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 173 transitions. [2018-04-11 14:47:43,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-04-11 14:47:43,741 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:47:43,741 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] [2018-04-11 14:47:43,741 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]=== [2018-04-11 14:47:43,742 INFO L82 PathProgramCache]: Analyzing trace with hash -1951010669, now seen corresponding path program 1 times [2018-04-11 14:47:43,742 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:47:43,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:47:43,748 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:47:43,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:43,853 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 14:47:43,853 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-04-11 14:47:43,854 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:47:43,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:43,854 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))] [2018-04-11 14:47:43,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:43,854 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-04-11 14:47:43,854 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-04-11 14:47:43,854 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2018-04-11 14:47:43,854 INFO L87 Difference]: Start difference. First operand 152 states and 173 transitions. Second operand 11 states. [2018-04-11 14:47:44,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:47:44,296 INFO L93 Difference]: Finished difference Result 400 states and 454 transitions. [2018-04-11 14:47:44,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-11 14:47:44,296 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 33 [2018-04-11 14:47:44,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:47:44,297 INFO L225 Difference]: With dead ends: 400 [2018-04-11 14:47:44,297 INFO L226 Difference]: Without dead ends: 400 [2018-04-11 14:47:44,297 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 [2018-04-11 14:47:44,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2018-04-11 14:47:44,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 168. [2018-04-11 14:47:44,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2018-04-11 14:47:44,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 193 transitions. [2018-04-11 14:47:44,301 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 193 transitions. Word has length 33 [2018-04-11 14:47:44,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:47:44,302 INFO L459 AbstractCegarLoop]: Abstraction has 168 states and 193 transitions. [2018-04-11 14:47:44,302 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-04-11 14:47:44,302 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 193 transitions. [2018-04-11 14:47:44,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-04-11 14:47:44,302 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:47:44,303 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] [2018-04-11 14:47:44,303 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]=== [2018-04-11 14:47:44,303 INFO L82 PathProgramCache]: Analyzing trace with hash -1951010668, now seen corresponding path program 1 times [2018-04-11 14:47:44,304 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:47:44,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:47:44,313 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:47:44,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:44,397 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 14:47:44,397 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-04-11 14:47:44,397 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:47:44,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:44,397 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))))] [2018-04-11 14:47:44,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:44,397 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-11 14:47:44,398 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-11 14:47:44,398 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-04-11 14:47:44,398 INFO L87 Difference]: Start difference. First operand 168 states and 193 transitions. Second operand 9 states. [2018-04-11 14:47:44,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:47:44,884 INFO L93 Difference]: Finished difference Result 325 states and 367 transitions. [2018-04-11 14:47:44,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-11 14:47:44,885 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 33 [2018-04-11 14:47:44,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:47:44,886 INFO L225 Difference]: With dead ends: 325 [2018-04-11 14:47:44,886 INFO L226 Difference]: Without dead ends: 325 [2018-04-11 14:47:44,886 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 [2018-04-11 14:47:44,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2018-04-11 14:47:44,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 168. [2018-04-11 14:47:44,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2018-04-11 14:47:44,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 192 transitions. [2018-04-11 14:47:44,890 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 192 transitions. Word has length 33 [2018-04-11 14:47:44,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:47:44,890 INFO L459 AbstractCegarLoop]: Abstraction has 168 states and 192 transitions. [2018-04-11 14:47:44,890 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-11 14:47:44,890 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 192 transitions. [2018-04-11 14:47:44,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-04-11 14:47:44,891 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:47:44,891 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] [2018-04-11 14:47:44,891 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]=== [2018-04-11 14:47:44,891 INFO L82 PathProgramCache]: Analyzing trace with hash -594222086, now seen corresponding path program 1 times [2018-04-11 14:47:44,892 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:47:44,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:47:44,899 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:47:44,914 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:44,915 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 14:47:44,915 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 14:47:44,915 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:47:44,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:44,915 INFO L182 omatonBuilderFactory]: Interpolants [6288#(not |main_#t~short17|), 6289#(not |main_#t~short19|), 6286#true, 6287#false] [2018-04-11 14:47:44,915 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:44,916 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 14:47:44,916 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 14:47:44,916 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 14:47:44,916 INFO L87 Difference]: Start difference. First operand 168 states and 192 transitions. Second operand 4 states. [2018-04-11 14:47:44,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:47:44,929 INFO L93 Difference]: Finished difference Result 179 states and 203 transitions. [2018-04-11 14:47:44,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 14:47:44,929 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2018-04-11 14:47:44,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:47:44,930 INFO L225 Difference]: With dead ends: 179 [2018-04-11 14:47:44,930 INFO L226 Difference]: Without dead ends: 179 [2018-04-11 14:47:44,931 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-11 14:47:44,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2018-04-11 14:47:44,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 172. [2018-04-11 14:47:44,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2018-04-11 14:47:44,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 196 transitions. [2018-04-11 14:47:44,934 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 196 transitions. Word has length 36 [2018-04-11 14:47:44,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:47:44,934 INFO L459 AbstractCegarLoop]: Abstraction has 172 states and 196 transitions. [2018-04-11 14:47:44,934 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 14:47:44,934 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 196 transitions. [2018-04-11 14:47:44,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-04-11 14:47:44,935 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:47:44,935 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] [2018-04-11 14:47:44,935 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]=== [2018-04-11 14:47:44,935 INFO L82 PathProgramCache]: Analyzing trace with hash 1495087999, now seen corresponding path program 1 times [2018-04-11 14:47:44,936 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:47:44,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:47:44,942 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:47:45,000 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:45,001 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:47:45,001 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-04-11 14:47:45,001 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:47:45,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:45,001 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))] [2018-04-11 14:47:45,002 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:45,002 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 14:47:45,002 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 14:47:45,002 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-11 14:47:45,002 INFO L87 Difference]: Start difference. First operand 172 states and 196 transitions. Second operand 6 states. [2018-04-11 14:47:45,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:47:45,183 INFO L93 Difference]: Finished difference Result 214 states and 240 transitions. [2018-04-11 14:47:45,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-11 14:47:45,184 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2018-04-11 14:47:45,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:47:45,184 INFO L225 Difference]: With dead ends: 214 [2018-04-11 14:47:45,184 INFO L226 Difference]: Without dead ends: 214 [2018-04-11 14:47:45,184 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 [2018-04-11 14:47:45,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2018-04-11 14:47:45,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 187. [2018-04-11 14:47:45,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2018-04-11 14:47:45,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 212 transitions. [2018-04-11 14:47:45,187 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 212 transitions. Word has length 38 [2018-04-11 14:47:45,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:47:45,188 INFO L459 AbstractCegarLoop]: Abstraction has 187 states and 212 transitions. [2018-04-11 14:47:45,188 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 14:47:45,188 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 212 transitions. [2018-04-11 14:47:45,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-04-11 14:47:45,188 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:47:45,188 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] [2018-04-11 14:47:45,189 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]=== [2018-04-11 14:47:45,189 INFO L82 PathProgramCache]: Analyzing trace with hash -1591086459, now seen corresponding path program 1 times [2018-04-11 14:47:45,189 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:47:45,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:47:45,200 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:47:45,324 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:45,324 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:47:45,324 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-04-11 14:47:45,324 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:47:45,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:45,325 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|)] [2018-04-11 14:47:45,325 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:45,325 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-11 14:47:45,325 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-11 14:47:45,325 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2018-04-11 14:47:45,325 INFO L87 Difference]: Start difference. First operand 187 states and 212 transitions. Second operand 12 states. [2018-04-11 14:47:45,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:47:45,813 INFO L93 Difference]: Finished difference Result 356 states and 391 transitions. [2018-04-11 14:47:45,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-04-11 14:47:45,813 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 43 [2018-04-11 14:47:45,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:47:45,814 INFO L225 Difference]: With dead ends: 356 [2018-04-11 14:47:45,814 INFO L226 Difference]: Without dead ends: 356 [2018-04-11 14:47:45,815 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 [2018-04-11 14:47:45,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-04-11 14:47:45,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 226. [2018-04-11 14:47:45,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2018-04-11 14:47:45,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 255 transitions. [2018-04-11 14:47:45,817 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 255 transitions. Word has length 43 [2018-04-11 14:47:45,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:47:45,817 INFO L459 AbstractCegarLoop]: Abstraction has 226 states and 255 transitions. [2018-04-11 14:47:45,817 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-11 14:47:45,818 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 255 transitions. [2018-04-11 14:47:45,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-04-11 14:47:45,818 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:47:45,818 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] [2018-04-11 14:47:45,818 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]=== [2018-04-11 14:47:45,818 INFO L82 PathProgramCache]: Analyzing trace with hash -912010883, now seen corresponding path program 1 times [2018-04-11 14:47:45,819 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:47:45,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:47:45,825 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:47:45,893 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:45,893 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:47:45,893 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-04-11 14:47:45,893 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:47:45,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:45,894 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))))] [2018-04-11 14:47:45,894 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:45,894 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-11 14:47:45,894 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-11 14:47:45,894 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2018-04-11 14:47:45,894 INFO L87 Difference]: Start difference. First operand 226 states and 255 transitions. Second operand 12 states. [2018-04-11 14:47:46,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:47:46,328 INFO L93 Difference]: Finished difference Result 388 states and 426 transitions. [2018-04-11 14:47:46,328 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-04-11 14:47:46,329 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 43 [2018-04-11 14:47:46,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:47:46,329 INFO L225 Difference]: With dead ends: 388 [2018-04-11 14:47:46,329 INFO L226 Difference]: Without dead ends: 388 [2018-04-11 14:47:46,330 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 [2018-04-11 14:47:46,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2018-04-11 14:47:46,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 213. [2018-04-11 14:47:46,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2018-04-11 14:47:46,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 240 transitions. [2018-04-11 14:47:46,332 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 240 transitions. Word has length 43 [2018-04-11 14:47:46,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:47:46,333 INFO L459 AbstractCegarLoop]: Abstraction has 213 states and 240 transitions. [2018-04-11 14:47:46,333 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-11 14:47:46,333 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 240 transitions. [2018-04-11 14:47:46,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-04-11 14:47:46,333 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:47:46,334 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] [2018-04-11 14:47:46,334 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]=== [2018-04-11 14:47:46,334 INFO L82 PathProgramCache]: Analyzing trace with hash 1962075886, now seen corresponding path program 1 times [2018-04-11 14:47:46,335 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:47:46,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:47:46,342 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:47:46,415 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 14:47:46,416 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 14:47:46,416 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-04-11 14:47:46,416 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:47:46,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:46,416 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|)] [2018-04-11 14:47:46,416 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 14:47:46,417 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-11 14:47:46,417 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-11 14:47:46,417 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-04-11 14:47:46,417 INFO L87 Difference]: Start difference. First operand 213 states and 240 transitions. Second operand 8 states. [2018-04-11 14:47:46,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:47:46,556 INFO L93 Difference]: Finished difference Result 319 states and 354 transitions. [2018-04-11 14:47:46,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-11 14:47:46,556 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 45 [2018-04-11 14:47:46,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:47:46,557 INFO L225 Difference]: With dead ends: 319 [2018-04-11 14:47:46,557 INFO L226 Difference]: Without dead ends: 319 [2018-04-11 14:47:46,558 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 [2018-04-11 14:47:46,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2018-04-11 14:47:46,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 290. [2018-04-11 14:47:46,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2018-04-11 14:47:46,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 333 transitions. [2018-04-11 14:47:46,562 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 333 transitions. Word has length 45 [2018-04-11 14:47:46,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:47:46,562 INFO L459 AbstractCegarLoop]: Abstraction has 290 states and 333 transitions. [2018-04-11 14:47:46,562 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-11 14:47:46,563 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 333 transitions. [2018-04-11 14:47:46,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-04-11 14:47:46,563 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:47:46,563 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] [2018-04-11 14:47:46,564 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]=== [2018-04-11 14:47:46,564 INFO L82 PathProgramCache]: Analyzing trace with hash -357570926, now seen corresponding path program 1 times [2018-04-11 14:47:46,565 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:47:46,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:47:46,579 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:47:46,879 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:46,879 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:47:46,879 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-04-11 14:47:46,879 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:47:46,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:46,879 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|))] [2018-04-11 14:47:46,880 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:46,880 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-04-11 14:47:46,880 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-04-11 14:47:46,880 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2018-04-11 14:47:46,880 INFO L87 Difference]: Start difference. First operand 290 states and 333 transitions. Second operand 19 states. [2018-04-11 14:47:47,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:47:47,941 INFO L93 Difference]: Finished difference Result 496 states and 548 transitions. [2018-04-11 14:47:47,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-04-11 14:47:47,941 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 46 [2018-04-11 14:47:47,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:47:47,942 INFO L225 Difference]: With dead ends: 496 [2018-04-11 14:47:47,942 INFO L226 Difference]: Without dead ends: 496 [2018-04-11 14:47:47,942 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 499 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=532, Invalid=1820, Unknown=0, NotChecked=0, Total=2352 [2018-04-11 14:47:47,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2018-04-11 14:47:47,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 318. [2018-04-11 14:47:47,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2018-04-11 14:47:47,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 367 transitions. [2018-04-11 14:47:47,947 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 367 transitions. Word has length 46 [2018-04-11 14:47:47,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:47:47,947 INFO L459 AbstractCegarLoop]: Abstraction has 318 states and 367 transitions. [2018-04-11 14:47:47,947 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-04-11 14:47:47,947 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 367 transitions. [2018-04-11 14:47:47,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-04-11 14:47:47,948 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:47:47,948 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] [2018-04-11 14:47:47,948 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]=== [2018-04-11 14:47:47,948 INFO L82 PathProgramCache]: Analyzing trace with hash -357570925, now seen corresponding path program 1 times [2018-04-11 14:47:47,949 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:47:47,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:47:47,964 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:47:48,344 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:48,344 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:47:48,374 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-04-11 14:47:48,374 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:47:48,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:48,374 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))] [2018-04-11 14:47:48,375 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:48,375 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-04-11 14:47:48,375 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-04-11 14:47:48,375 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2018-04-11 14:47:48,375 INFO L87 Difference]: Start difference. First operand 318 states and 367 transitions. Second operand 17 states. [2018-04-11 14:47:49,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:47:49,311 INFO L93 Difference]: Finished difference Result 485 states and 551 transitions. [2018-04-11 14:47:49,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-11 14:47:49,311 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 46 [2018-04-11 14:47:49,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:47:49,312 INFO L225 Difference]: With dead ends: 485 [2018-04-11 14:47:49,312 INFO L226 Difference]: Without dead ends: 485 [2018-04-11 14:47:49,312 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=235, Invalid=695, Unknown=0, NotChecked=0, Total=930 [2018-04-11 14:47:49,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2018-04-11 14:47:49,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 318. [2018-04-11 14:47:49,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2018-04-11 14:47:49,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 366 transitions. [2018-04-11 14:47:49,316 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 366 transitions. Word has length 46 [2018-04-11 14:47:49,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:47:49,316 INFO L459 AbstractCegarLoop]: Abstraction has 318 states and 366 transitions. [2018-04-11 14:47:49,316 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-04-11 14:47:49,316 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 366 transitions. [2018-04-11 14:47:49,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-04-11 14:47:49,316 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:47:49,316 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] [2018-04-11 14:47:49,317 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]=== [2018-04-11 14:47:49,317 INFO L82 PathProgramCache]: Analyzing trace with hash 694810563, now seen corresponding path program 1 times [2018-04-11 14:47:49,317 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:47:49,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:47:49,324 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:47:49,497 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:49,497 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:47:49,498 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-04-11 14:47:49,498 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:47:49,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:49,498 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|))] [2018-04-11 14:47:49,498 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:49,499 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-11 14:47:49,499 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-11 14:47:49,499 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-04-11 14:47:49,499 INFO L87 Difference]: Start difference. First operand 318 states and 366 transitions. Second operand 12 states. [2018-04-11 14:47:49,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:47:49,805 INFO L93 Difference]: Finished difference Result 411 states and 461 transitions. [2018-04-11 14:47:49,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-11 14:47:49,806 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 46 [2018-04-11 14:47:49,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:47:49,807 INFO L225 Difference]: With dead ends: 411 [2018-04-11 14:47:49,807 INFO L226 Difference]: Without dead ends: 411 [2018-04-11 14:47:49,808 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 [2018-04-11 14:47:49,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2018-04-11 14:47:49,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 290. [2018-04-11 14:47:49,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2018-04-11 14:47:49,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 334 transitions. [2018-04-11 14:47:49,813 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 334 transitions. Word has length 46 [2018-04-11 14:47:49,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:47:49,813 INFO L459 AbstractCegarLoop]: Abstraction has 290 states and 334 transitions. [2018-04-11 14:47:49,813 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-11 14:47:49,813 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 334 transitions. [2018-04-11 14:47:49,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-04-11 14:47:49,814 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:47:49,814 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] [2018-04-11 14:47:49,814 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]=== [2018-04-11 14:47:49,815 INFO L82 PathProgramCache]: Analyzing trace with hash 690699782, now seen corresponding path program 1 times [2018-04-11 14:47:49,816 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:47:49,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:47:49,832 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:47:50,302 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:50,302 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:47:50,302 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-04-11 14:47:50,302 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:47:50,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:50,303 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|))] [2018-04-11 14:47:50,303 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:50,303 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-11 14:47:50,303 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-11 14:47:50,303 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2018-04-11 14:47:50,303 INFO L87 Difference]: Start difference. First operand 290 states and 334 transitions. Second operand 20 states. [2018-04-11 14:47:51,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:47:51,691 INFO L93 Difference]: Finished difference Result 613 states and 692 transitions. [2018-04-11 14:47:51,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-04-11 14:47:51,691 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 49 [2018-04-11 14:47:51,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:47:51,692 INFO L225 Difference]: With dead ends: 613 [2018-04-11 14:47:51,692 INFO L226 Difference]: Without dead ends: 613 [2018-04-11 14:47:51,693 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 [2018-04-11 14:47:51,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2018-04-11 14:47:51,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 312. [2018-04-11 14:47:51,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2018-04-11 14:47:51,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 360 transitions. [2018-04-11 14:47:51,696 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 360 transitions. Word has length 49 [2018-04-11 14:47:51,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:47:51,696 INFO L459 AbstractCegarLoop]: Abstraction has 312 states and 360 transitions. [2018-04-11 14:47:51,696 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-11 14:47:51,696 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 360 transitions. [2018-04-11 14:47:51,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-04-11 14:47:51,697 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:47:51,697 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] [2018-04-11 14:47:51,697 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]=== [2018-04-11 14:47:51,697 INFO L82 PathProgramCache]: Analyzing trace with hash 690699783, now seen corresponding path program 1 times [2018-04-11 14:47:51,698 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:47:51,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:47:51,708 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:47:52,237 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:52,237 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:47:52,237 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-04-11 14:47:52,237 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:47:52,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:52,238 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)] [2018-04-11 14:47:52,238 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:52,238 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-11 14:47:52,238 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-11 14:47:52,238 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2018-04-11 14:47:52,238 INFO L87 Difference]: Start difference. First operand 312 states and 360 transitions. Second operand 21 states. [2018-04-11 14:47:53,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:47:53,383 INFO L93 Difference]: Finished difference Result 466 states and 533 transitions. [2018-04-11 14:47:53,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-11 14:47:53,384 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 49 [2018-04-11 14:47:53,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:47:53,385 INFO L225 Difference]: With dead ends: 466 [2018-04-11 14:47:53,385 INFO L226 Difference]: Without dead ends: 466 [2018-04-11 14:47:53,385 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 [2018-04-11 14:47:53,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2018-04-11 14:47:53,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 296. [2018-04-11 14:47:53,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2018-04-11 14:47:53,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 340 transitions. [2018-04-11 14:47:53,388 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 340 transitions. Word has length 49 [2018-04-11 14:47:53,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:47:53,388 INFO L459 AbstractCegarLoop]: Abstraction has 296 states and 340 transitions. [2018-04-11 14:47:53,388 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-11 14:47:53,388 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 340 transitions. [2018-04-11 14:47:53,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-04-11 14:47:53,388 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:47:53,388 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] [2018-04-11 14:47:53,388 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]=== [2018-04-11 14:47:53,389 INFO L82 PathProgramCache]: Analyzing trace with hash -1085426215, now seen corresponding path program 1 times [2018-04-11 14:47:53,389 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:47:53,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:47:53,393 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:47:53,441 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:53,441 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:47:53,442 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-04-11 14:47:53,442 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:47:53,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:53,442 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))] [2018-04-11 14:47:53,442 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:53,442 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-11 14:47:53,442 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-11 14:47:53,442 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-04-11 14:47:53,443 INFO L87 Difference]: Start difference. First operand 296 states and 340 transitions. Second operand 9 states. [2018-04-11 14:47:53,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:47:53,723 INFO L93 Difference]: Finished difference Result 394 states and 452 transitions. [2018-04-11 14:47:53,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-11 14:47:53,723 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 49 [2018-04-11 14:47:53,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:47:53,724 INFO L225 Difference]: With dead ends: 394 [2018-04-11 14:47:53,724 INFO L226 Difference]: Without dead ends: 394 [2018-04-11 14:47:53,724 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 [2018-04-11 14:47:53,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2018-04-11 14:47:53,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 328. [2018-04-11 14:47:53,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2018-04-11 14:47:53,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 378 transitions. [2018-04-11 14:47:53,727 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 378 transitions. Word has length 49 [2018-04-11 14:47:53,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:47:53,727 INFO L459 AbstractCegarLoop]: Abstraction has 328 states and 378 transitions. [2018-04-11 14:47:53,728 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-11 14:47:53,728 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 378 transitions. [2018-04-11 14:47:53,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-04-11 14:47:53,728 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:47:53,728 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] [2018-04-11 14:47:53,728 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]=== [2018-04-11 14:47:53,729 INFO L82 PathProgramCache]: Analyzing trace with hash 338904510, now seen corresponding path program 1 times [2018-04-11 14:47:53,729 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:47:53,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:47:53,737 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:47:53,884 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:53,884 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 14:47:53,885 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-04-11 14:47:53,885 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:47:53,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:53,885 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))] [2018-04-11 14:47:53,885 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:53,885 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-11 14:47:53,885 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-11 14:47:53,885 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2018-04-11 14:47:53,885 INFO L87 Difference]: Start difference. First operand 328 states and 378 transitions. Second operand 12 states. [2018-04-11 14:47:54,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:47:54,202 INFO L93 Difference]: Finished difference Result 413 states and 466 transitions. [2018-04-11 14:47:54,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-11 14:47:54,202 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 50 [2018-04-11 14:47:54,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:47:54,203 INFO L225 Difference]: With dead ends: 413 [2018-04-11 14:47:54,203 INFO L226 Difference]: Without dead ends: 401 [2018-04-11 14:47:54,204 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2018-04-11 14:47:54,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2018-04-11 14:47:54,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 324. [2018-04-11 14:47:54,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2018-04-11 14:47:54,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 371 transitions. [2018-04-11 14:47:54,208 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 371 transitions. Word has length 50 [2018-04-11 14:47:54,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:47:54,208 INFO L459 AbstractCegarLoop]: Abstraction has 324 states and 371 transitions. [2018-04-11 14:47:54,208 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-11 14:47:54,208 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 371 transitions. [2018-04-11 14:47:54,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-04-11 14:47:54,208 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:47:54,209 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] [2018-04-11 14:47:54,209 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]=== [2018-04-11 14:47:54,209 INFO L82 PathProgramCache]: Analyzing trace with hash 711524907, now seen corresponding path program 1 times [2018-04-11 14:47:54,210 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:47:54,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:47:54,216 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:47:54,274 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 14:47:54,275 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:47:54,275 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-04-11 14:47:54,275 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:47:54,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:54,275 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)|)] [2018-04-11 14:47:54,276 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 14:47:54,276 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 14:47:54,276 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 14:47:54,276 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-11 14:47:54,276 INFO L87 Difference]: Start difference. First operand 324 states and 371 transitions. Second operand 6 states. [2018-04-11 14:47:54,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:47:54,410 INFO L93 Difference]: Finished difference Result 339 states and 385 transitions. [2018-04-11 14:47:54,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-11 14:47:54,411 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2018-04-11 14:47:54,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:47:54,411 INFO L225 Difference]: With dead ends: 339 [2018-04-11 14:47:54,411 INFO L226 Difference]: Without dead ends: 306 [2018-04-11 14:47:54,412 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 [2018-04-11 14:47:54,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2018-04-11 14:47:54,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 305. [2018-04-11 14:47:54,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2018-04-11 14:47:54,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 351 transitions. [2018-04-11 14:47:54,415 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 351 transitions. Word has length 50 [2018-04-11 14:47:54,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:47:54,415 INFO L459 AbstractCegarLoop]: Abstraction has 305 states and 351 transitions. [2018-04-11 14:47:54,415 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 14:47:54,415 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 351 transitions. [2018-04-11 14:47:54,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-04-11 14:47:54,415 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:47:54,415 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] [2018-04-11 14:47:54,415 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]=== [2018-04-11 14:47:54,415 INFO L82 PathProgramCache]: Analyzing trace with hash -2111877511, now seen corresponding path program 1 times [2018-04-11 14:47:54,416 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:47:54,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:47:54,422 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:47:54,542 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:54,542 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:47:54,542 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-04-11 14:47:54,542 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:47:54,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:54,542 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))] [2018-04-11 14:47:54,543 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:54,543 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-11 14:47:54,543 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-11 14:47:54,543 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2018-04-11 14:47:54,543 INFO L87 Difference]: Start difference. First operand 305 states and 351 transitions. Second operand 12 states. [2018-04-11 14:47:55,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:47:55,055 INFO L93 Difference]: Finished difference Result 640 states and 725 transitions. [2018-04-11 14:47:55,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-11 14:47:55,055 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 51 [2018-04-11 14:47:55,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:47:55,056 INFO L225 Difference]: With dead ends: 640 [2018-04-11 14:47:55,056 INFO L226 Difference]: Without dead ends: 640 [2018-04-11 14:47:55,057 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=246, Invalid=624, Unknown=0, NotChecked=0, Total=870 [2018-04-11 14:47:55,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2018-04-11 14:47:55,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 377. [2018-04-11 14:47:55,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2018-04-11 14:47:55,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 442 transitions. [2018-04-11 14:47:55,060 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 442 transitions. Word has length 51 [2018-04-11 14:47:55,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:47:55,060 INFO L459 AbstractCegarLoop]: Abstraction has 377 states and 442 transitions. [2018-04-11 14:47:55,060 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-11 14:47:55,060 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 442 transitions. [2018-04-11 14:47:55,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-04-11 14:47:55,061 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:47:55,061 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] [2018-04-11 14:47:55,061 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]=== [2018-04-11 14:47:55,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1367089988, now seen corresponding path program 1 times [2018-04-11 14:47:55,062 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:47:55,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:47:55,066 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:47:55,192 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:55,192 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:47:55,192 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-04-11 14:47:55,192 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:47:55,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:55,193 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))] [2018-04-11 14:47:55,193 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:55,193 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-11 14:47:55,193 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-11 14:47:55,193 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2018-04-11 14:47:55,193 INFO L87 Difference]: Start difference. First operand 377 states and 442 transitions. Second operand 13 states. [2018-04-11 14:47:55,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:47:55,745 INFO L93 Difference]: Finished difference Result 503 states and 576 transitions. [2018-04-11 14:47:55,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-04-11 14:47:55,745 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 51 [2018-04-11 14:47:55,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:47:55,747 INFO L225 Difference]: With dead ends: 503 [2018-04-11 14:47:55,747 INFO L226 Difference]: Without dead ends: 503 [2018-04-11 14:47:55,748 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 [2018-04-11 14:47:55,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2018-04-11 14:47:55,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 415. [2018-04-11 14:47:55,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2018-04-11 14:47:55,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 486 transitions. [2018-04-11 14:47:55,753 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 486 transitions. Word has length 51 [2018-04-11 14:47:55,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:47:55,754 INFO L459 AbstractCegarLoop]: Abstraction has 415 states and 486 transitions. [2018-04-11 14:47:55,754 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-11 14:47:55,754 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 486 transitions. [2018-04-11 14:47:55,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-04-11 14:47:55,754 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:47:55,755 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] [2018-04-11 14:47:55,755 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]=== [2018-04-11 14:47:55,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1367089989, now seen corresponding path program 1 times [2018-04-11 14:47:55,756 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:47:55,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:47:55,763 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:47:55,907 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:55,907 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:47:55,907 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-04-11 14:47:55,907 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:47:55,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:55,907 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)))] [2018-04-11 14:47:55,907 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:55,908 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-11 14:47:55,908 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-11 14:47:55,908 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2018-04-11 14:47:55,908 INFO L87 Difference]: Start difference. First operand 415 states and 486 transitions. Second operand 12 states. [2018-04-11 14:47:56,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:47:56,380 INFO L93 Difference]: Finished difference Result 562 states and 643 transitions. [2018-04-11 14:47:56,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-11 14:47:56,380 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 51 [2018-04-11 14:47:56,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:47:56,381 INFO L225 Difference]: With dead ends: 562 [2018-04-11 14:47:56,381 INFO L226 Difference]: Without dead ends: 562 [2018-04-11 14:47:56,381 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 [2018-04-11 14:47:56,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2018-04-11 14:47:56,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 455. [2018-04-11 14:47:56,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 455 states. [2018-04-11 14:47:56,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 534 transitions. [2018-04-11 14:47:56,385 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 534 transitions. Word has length 51 [2018-04-11 14:47:56,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:47:56,385 INFO L459 AbstractCegarLoop]: Abstraction has 455 states and 534 transitions. [2018-04-11 14:47:56,385 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-11 14:47:56,385 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 534 transitions. [2018-04-11 14:47:56,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-04-11 14:47:56,385 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:47:56,385 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] [2018-04-11 14:47:56,385 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]=== [2018-04-11 14:47:56,385 INFO L82 PathProgramCache]: Analyzing trace with hash -1043693160, now seen corresponding path program 1 times [2018-04-11 14:47:56,386 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:47:56,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:47:56,391 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:47:56,546 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:56,546 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:47:56,546 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-04-11 14:47:56,546 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:47:56,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:56,547 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)] [2018-04-11 14:47:56,547 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:56,547 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-11 14:47:56,547 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-11 14:47:56,547 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2018-04-11 14:47:56,547 INFO L87 Difference]: Start difference. First operand 455 states and 534 transitions. Second operand 12 states. [2018-04-11 14:47:56,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:47:56,908 INFO L93 Difference]: Finished difference Result 561 states and 651 transitions. [2018-04-11 14:47:56,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-11 14:47:56,908 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 52 [2018-04-11 14:47:56,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:47:56,909 INFO L225 Difference]: With dead ends: 561 [2018-04-11 14:47:56,909 INFO L226 Difference]: Without dead ends: 561 [2018-04-11 14:47:56,909 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 [2018-04-11 14:47:56,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2018-04-11 14:47:56,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 465. [2018-04-11 14:47:56,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 465 states. [2018-04-11 14:47:56,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 545 transitions. [2018-04-11 14:47:56,913 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 545 transitions. Word has length 52 [2018-04-11 14:47:56,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:47:56,913 INFO L459 AbstractCegarLoop]: Abstraction has 465 states and 545 transitions. [2018-04-11 14:47:56,913 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-11 14:47:56,913 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 545 transitions. [2018-04-11 14:47:56,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-04-11 14:47:56,914 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:47:56,914 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] [2018-04-11 14:47:56,914 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]=== [2018-04-11 14:47:56,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1417636850, now seen corresponding path program 1 times [2018-04-11 14:47:56,915 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:47:56,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:47:56,920 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:47:57,048 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:57,048 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:47:57,048 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-04-11 14:47:57,048 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:47:57,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:57,048 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] [2018-04-11 14:47:57,048 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:57,049 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-11 14:47:57,049 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-11 14:47:57,049 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2018-04-11 14:47:57,049 INFO L87 Difference]: Start difference. First operand 465 states and 545 transitions. Second operand 15 states. [2018-04-11 14:47:57,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:47:57,612 INFO L93 Difference]: Finished difference Result 636 states and 738 transitions. [2018-04-11 14:47:57,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-11 14:47:57,612 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 54 [2018-04-11 14:47:57,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:47:57,614 INFO L225 Difference]: With dead ends: 636 [2018-04-11 14:47:57,614 INFO L226 Difference]: Without dead ends: 636 [2018-04-11 14:47:57,614 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=192, Invalid=678, Unknown=0, NotChecked=0, Total=870 [2018-04-11 14:47:57,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2018-04-11 14:47:57,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 510. [2018-04-11 14:47:57,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 510 states. [2018-04-11 14:47:57,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 596 transitions. [2018-04-11 14:47:57,617 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 596 transitions. Word has length 54 [2018-04-11 14:47:57,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:47:57,618 INFO L459 AbstractCegarLoop]: Abstraction has 510 states and 596 transitions. [2018-04-11 14:47:57,618 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-11 14:47:57,618 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 596 transitions. [2018-04-11 14:47:57,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-04-11 14:47:57,618 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:47:57,618 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] [2018-04-11 14:47:57,618 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]=== [2018-04-11 14:47:57,619 INFO L82 PathProgramCache]: Analyzing trace with hash 1417636851, now seen corresponding path program 1 times [2018-04-11 14:47:57,619 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:47:57,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:47:57,624 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:47:57,830 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:57,830 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:47:57,830 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-04-11 14:47:57,830 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:47:57,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:57,831 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))] [2018-04-11 14:47:57,831 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:57,831 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-11 14:47:57,831 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-11 14:47:57,831 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2018-04-11 14:47:57,831 INFO L87 Difference]: Start difference. First operand 510 states and 596 transitions. Second operand 16 states. [2018-04-11 14:47:58,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:47:58,482 INFO L93 Difference]: Finished difference Result 696 states and 806 transitions. [2018-04-11 14:47:58,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-04-11 14:47:58,482 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 54 [2018-04-11 14:47:58,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:47:58,483 INFO L225 Difference]: With dead ends: 696 [2018-04-11 14:47:58,483 INFO L226 Difference]: Without dead ends: 696 [2018-04-11 14:47:58,484 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 [2018-04-11 14:47:58,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2018-04-11 14:47:58,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 506. [2018-04-11 14:47:58,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 506 states. [2018-04-11 14:47:58,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 593 transitions. [2018-04-11 14:47:58,487 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 593 transitions. Word has length 54 [2018-04-11 14:47:58,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:47:58,487 INFO L459 AbstractCegarLoop]: Abstraction has 506 states and 593 transitions. [2018-04-11 14:47:58,487 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-11 14:47:58,487 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 593 transitions. [2018-04-11 14:47:58,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-04-11 14:47:58,488 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:47:58,488 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] [2018-04-11 14:47:58,488 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]=== [2018-04-11 14:47:58,488 INFO L82 PathProgramCache]: Analyzing trace with hash 689346944, now seen corresponding path program 1 times [2018-04-11 14:47:58,489 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:47:58,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:47:58,496 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:47:58,570 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 14:47:58,571 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 14:47:58,571 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-04-11 14:47:58,571 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:47:58,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:58,571 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] [2018-04-11 14:47:58,571 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 14:47:58,572 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-11 14:47:58,572 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-11 14:47:58,572 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-04-11 14:47:58,572 INFO L87 Difference]: Start difference. First operand 506 states and 593 transitions. Second operand 7 states. [2018-04-11 14:47:58,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:47:58,708 INFO L93 Difference]: Finished difference Result 711 states and 828 transitions. [2018-04-11 14:47:58,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-11 14:47:58,708 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2018-04-11 14:47:58,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:47:58,710 INFO L225 Difference]: With dead ends: 711 [2018-04-11 14:47:58,710 INFO L226 Difference]: Without dead ends: 697 [2018-04-11 14:47:58,710 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 [2018-04-11 14:47:58,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2018-04-11 14:47:58,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 646. [2018-04-11 14:47:58,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 646 states. [2018-04-11 14:47:58,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 768 transitions. [2018-04-11 14:47:58,713 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 768 transitions. Word has length 56 [2018-04-11 14:47:58,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:47:58,713 INFO L459 AbstractCegarLoop]: Abstraction has 646 states and 768 transitions. [2018-04-11 14:47:58,714 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-11 14:47:58,714 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 768 transitions. [2018-04-11 14:47:58,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-04-11 14:47:58,714 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:47:58,714 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] [2018-04-11 14:47:58,714 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]=== [2018-04-11 14:47:58,714 INFO L82 PathProgramCache]: Analyzing trace with hash -277764453, now seen corresponding path program 1 times [2018-04-11 14:47:58,715 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:47:58,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:47:58,721 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:47:58,850 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:58,851 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:47:58,851 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-04-11 14:47:58,851 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:47:58,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:58,851 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))] [2018-04-11 14:47:58,851 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:58,851 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-11 14:47:58,851 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-11 14:47:58,852 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-04-11 14:47:58,852 INFO L87 Difference]: Start difference. First operand 646 states and 768 transitions. Second operand 12 states. [2018-04-11 14:47:59,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:47:59,092 INFO L93 Difference]: Finished difference Result 744 states and 875 transitions. [2018-04-11 14:47:59,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-11 14:47:59,092 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 56 [2018-04-11 14:47:59,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:47:59,094 INFO L225 Difference]: With dead ends: 744 [2018-04-11 14:47:59,094 INFO L226 Difference]: Without dead ends: 744 [2018-04-11 14:47:59,094 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 [2018-04-11 14:47:59,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-04-11 14:47:59,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 648. [2018-04-11 14:47:59,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 648 states. [2018-04-11 14:47:59,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 770 transitions. [2018-04-11 14:47:59,098 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 770 transitions. Word has length 56 [2018-04-11 14:47:59,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:47:59,098 INFO L459 AbstractCegarLoop]: Abstraction has 648 states and 770 transitions. [2018-04-11 14:47:59,098 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-11 14:47:59,098 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 770 transitions. [2018-04-11 14:47:59,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-04-11 14:47:59,099 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:47:59,099 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] [2018-04-11 14:47:59,099 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]=== [2018-04-11 14:47:59,099 INFO L82 PathProgramCache]: Analyzing trace with hash -1506285837, now seen corresponding path program 2 times [2018-04-11 14:47:59,100 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:47:59,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:47:59,111 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:47:59,613 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:59,613 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:47:59,613 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-04-11 14:47:59,613 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:47:59,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:59,613 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))))] [2018-04-11 14:47:59,613 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:47:59,614 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-04-11 14:47:59,614 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-04-11 14:47:59,614 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2018-04-11 14:47:59,614 INFO L87 Difference]: Start difference. First operand 648 states and 770 transitions. Second operand 23 states. [2018-04-11 14:48:01,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:48:01,342 INFO L93 Difference]: Finished difference Result 1096 states and 1279 transitions. [2018-04-11 14:48:01,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-04-11 14:48:01,343 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 59 [2018-04-11 14:48:01,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:48:01,344 INFO L225 Difference]: With dead ends: 1096 [2018-04-11 14:48:01,345 INFO L226 Difference]: Without dead ends: 1096 [2018-04-11 14:48:01,345 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 754 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=760, Invalid=2780, Unknown=0, NotChecked=0, Total=3540 [2018-04-11 14:48:01,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2018-04-11 14:48:01,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 676. [2018-04-11 14:48:01,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 676 states. [2018-04-11 14:48:01,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 804 transitions. [2018-04-11 14:48:01,351 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 804 transitions. Word has length 59 [2018-04-11 14:48:01,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:48:01,351 INFO L459 AbstractCegarLoop]: Abstraction has 676 states and 804 transitions. [2018-04-11 14:48:01,351 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-04-11 14:48:01,351 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 804 transitions. [2018-04-11 14:48:01,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-04-11 14:48:01,352 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:48:01,352 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] [2018-04-11 14:48:01,352 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]=== [2018-04-11 14:48:01,352 INFO L82 PathProgramCache]: Analyzing trace with hash -1506285836, now seen corresponding path program 2 times [2018-04-11 14:48:01,353 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:48:01,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:48:01,382 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:48:02,178 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:02,178 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:48:02,178 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-04-11 14:48:02,178 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:48:02,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:02,179 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|)))] [2018-04-11 14:48:02,179 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:02,179 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-04-11 14:48:02,179 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-04-11 14:48:02,179 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=464, Unknown=0, NotChecked=0, Total=552 [2018-04-11 14:48:02,179 INFO L87 Difference]: Start difference. First operand 676 states and 804 transitions. Second operand 24 states. [2018-04-11 14:48:03,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:48:03,581 INFO L93 Difference]: Finished difference Result 1090 states and 1302 transitions. [2018-04-11 14:48:03,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-11 14:48:03,581 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 59 [2018-04-11 14:48:03,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:48:03,583 INFO L225 Difference]: With dead ends: 1090 [2018-04-11 14:48:03,583 INFO L226 Difference]: Without dead ends: 1090 [2018-04-11 14:48:03,584 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=382, Invalid=1340, Unknown=0, NotChecked=0, Total=1722 [2018-04-11 14:48:03,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1090 states. [2018-04-11 14:48:03,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1090 to 704. [2018-04-11 14:48:03,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 704 states. [2018-04-11 14:48:03,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 837 transitions. [2018-04-11 14:48:03,588 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 837 transitions. Word has length 59 [2018-04-11 14:48:03,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:48:03,588 INFO L459 AbstractCegarLoop]: Abstraction has 704 states and 837 transitions. [2018-04-11 14:48:03,588 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-04-11 14:48:03,588 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 837 transitions. [2018-04-11 14:48:03,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-04-11 14:48:03,589 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:48:03,589 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] [2018-04-11 14:48:03,589 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]=== [2018-04-11 14:48:03,589 INFO L82 PathProgramCache]: Analyzing trace with hash -1956802800, now seen corresponding path program 1 times [2018-04-11 14:48:03,590 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:48:03,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:48:03,595 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:48:03,958 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:03,959 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:48:03,959 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-04-11 14:48:03,959 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:48:03,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:03,959 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)))] [2018-04-11 14:48:03,959 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:03,960 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-11 14:48:03,960 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-11 14:48:03,960 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2018-04-11 14:48:03,960 INFO L87 Difference]: Start difference. First operand 704 states and 837 transitions. Second operand 18 states. [2018-04-11 14:48:04,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:48:04,832 INFO L93 Difference]: Finished difference Result 890 states and 1032 transitions. [2018-04-11 14:48:04,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-04-11 14:48:04,833 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 59 [2018-04-11 14:48:04,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:48:04,835 INFO L225 Difference]: With dead ends: 890 [2018-04-11 14:48:04,835 INFO L226 Difference]: Without dead ends: 890 [2018-04-11 14:48:04,836 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=274, Invalid=1132, Unknown=0, NotChecked=0, Total=1406 [2018-04-11 14:48:04,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2018-04-11 14:48:04,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 736. [2018-04-11 14:48:04,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 736 states. [2018-04-11 14:48:04,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 873 transitions. [2018-04-11 14:48:04,845 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 873 transitions. Word has length 59 [2018-04-11 14:48:04,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:48:04,845 INFO L459 AbstractCegarLoop]: Abstraction has 736 states and 873 transitions. [2018-04-11 14:48:04,845 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-11 14:48:04,845 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 873 transitions. [2018-04-11 14:48:04,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-04-11 14:48:04,846 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:48:04,846 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] [2018-04-11 14:48:04,846 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]=== [2018-04-11 14:48:04,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1956802799, now seen corresponding path program 1 times [2018-04-11 14:48:04,847 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:48:04,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:48:04,856 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:48:05,282 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:05,282 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:48:05,282 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-04-11 14:48:05,282 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:48:05,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:05,283 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))] [2018-04-11 14:48:05,283 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:05,283 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-11 14:48:05,283 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-11 14:48:05,283 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2018-04-11 14:48:05,284 INFO L87 Difference]: Start difference. First operand 736 states and 873 transitions. Second operand 18 states. [2018-04-11 14:48:06,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:48:06,339 INFO L93 Difference]: Finished difference Result 860 states and 994 transitions. [2018-04-11 14:48:06,340 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-04-11 14:48:06,340 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 59 [2018-04-11 14:48:06,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:48:06,341 INFO L225 Difference]: With dead ends: 860 [2018-04-11 14:48:06,341 INFO L226 Difference]: Without dead ends: 860 [2018-04-11 14:48:06,342 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=360, Invalid=1446, Unknown=0, NotChecked=0, Total=1806 [2018-04-11 14:48:06,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2018-04-11 14:48:06,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 725. [2018-04-11 14:48:06,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 725 states. [2018-04-11 14:48:06,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 857 transitions. [2018-04-11 14:48:06,346 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 857 transitions. Word has length 59 [2018-04-11 14:48:06,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:48:06,346 INFO L459 AbstractCegarLoop]: Abstraction has 725 states and 857 transitions. [2018-04-11 14:48:06,346 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-11 14:48:06,346 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 857 transitions. [2018-04-11 14:48:06,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-04-11 14:48:06,347 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:48:06,347 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] [2018-04-11 14:48:06,347 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]=== [2018-04-11 14:48:06,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1784465383, now seen corresponding path program 1 times [2018-04-11 14:48:06,348 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:48:06,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:48:06,357 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:48:06,737 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:06,737 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:48:06,737 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-04-11 14:48:06,737 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:48:06,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:06,738 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] [2018-04-11 14:48:06,738 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:06,738 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-11 14:48:06,738 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-11 14:48:06,738 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2018-04-11 14:48:06,738 INFO L87 Difference]: Start difference. First operand 725 states and 857 transitions. Second operand 13 states. [2018-04-11 14:48:07,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:48:07,091 INFO L93 Difference]: Finished difference Result 732 states and 863 transitions. [2018-04-11 14:48:07,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-11 14:48:07,092 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 61 [2018-04-11 14:48:07,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:48:07,093 INFO L225 Difference]: With dead ends: 732 [2018-04-11 14:48:07,093 INFO L226 Difference]: Without dead ends: 691 [2018-04-11 14:48:07,093 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2018-04-11 14:48:07,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2018-04-11 14:48:07,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 691. [2018-04-11 14:48:07,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 691 states. [2018-04-11 14:48:07,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 822 transitions. [2018-04-11 14:48:07,097 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 822 transitions. Word has length 61 [2018-04-11 14:48:07,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:48:07,097 INFO L459 AbstractCegarLoop]: Abstraction has 691 states and 822 transitions. [2018-04-11 14:48:07,097 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-11 14:48:07,097 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 822 transitions. [2018-04-11 14:48:07,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-04-11 14:48:07,098 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:48:07,098 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] [2018-04-11 14:48:07,098 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]=== [2018-04-11 14:48:07,098 INFO L82 PathProgramCache]: Analyzing trace with hash -1079948289, now seen corresponding path program 1 times [2018-04-11 14:48:07,099 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:48:07,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:48:07,110 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:48:07,720 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:07,720 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:48:07,720 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-04-11 14:48:07,720 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:48:07,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:07,720 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|))] [2018-04-11 14:48:07,720 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:07,721 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-04-11 14:48:07,721 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-04-11 14:48:07,721 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2018-04-11 14:48:07,721 INFO L87 Difference]: Start difference. First operand 691 states and 822 transitions. Second operand 25 states. [2018-04-11 14:48:09,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:48:09,859 INFO L93 Difference]: Finished difference Result 862 states and 1004 transitions. [2018-04-11 14:48:09,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2018-04-11 14:48:09,860 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 62 [2018-04-11 14:48:09,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:48:09,861 INFO L225 Difference]: With dead ends: 862 [2018-04-11 14:48:09,861 INFO L226 Difference]: Without dead ends: 862 [2018-04-11 14:48:09,862 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1093 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1131, Invalid=4125, Unknown=0, NotChecked=0, Total=5256 [2018-04-11 14:48:09,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 862 states. [2018-04-11 14:48:09,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 862 to 663. [2018-04-11 14:48:09,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 663 states. [2018-04-11 14:48:09,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 786 transitions. [2018-04-11 14:48:09,866 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 786 transitions. Word has length 62 [2018-04-11 14:48:09,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:48:09,866 INFO L459 AbstractCegarLoop]: Abstraction has 663 states and 786 transitions. [2018-04-11 14:48:09,866 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-04-11 14:48:09,866 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 786 transitions. [2018-04-11 14:48:09,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-04-11 14:48:09,867 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:48:09,867 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] [2018-04-11 14:48:09,867 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]=== [2018-04-11 14:48:09,867 INFO L82 PathProgramCache]: Analyzing trace with hash -1079948288, now seen corresponding path program 1 times [2018-04-11 14:48:09,868 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:48:09,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:48:09,887 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:48:10,668 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:10,668 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:48:10,668 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-04-11 14:48:10,668 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:48:10,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:10,669 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))] [2018-04-11 14:48:10,669 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:10,669 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-04-11 14:48:10,669 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-04-11 14:48:10,670 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=558, Unknown=0, NotChecked=0, Total=650 [2018-04-11 14:48:10,670 INFO L87 Difference]: Start difference. First operand 663 states and 786 transitions. Second operand 26 states. [2018-04-11 14:48:12,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:48:12,663 INFO L93 Difference]: Finished difference Result 814 states and 944 transitions. [2018-04-11 14:48:12,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-04-11 14:48:12,663 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 62 [2018-04-11 14:48:12,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:48:12,664 INFO L225 Difference]: With dead ends: 814 [2018-04-11 14:48:12,664 INFO L226 Difference]: Without dead ends: 814 [2018-04-11 14:48:12,665 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 460 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=664, Invalid=2198, Unknown=0, NotChecked=0, Total=2862 [2018-04-11 14:48:12,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2018-04-11 14:48:12,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 635. [2018-04-11 14:48:12,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 635 states. [2018-04-11 14:48:12,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 751 transitions. [2018-04-11 14:48:12,669 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 751 transitions. Word has length 62 [2018-04-11 14:48:12,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:48:12,669 INFO L459 AbstractCegarLoop]: Abstraction has 635 states and 751 transitions. [2018-04-11 14:48:12,669 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-04-11 14:48:12,669 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 751 transitions. [2018-04-11 14:48:12,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-04-11 14:48:12,669 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:48:12,669 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] [2018-04-11 14:48:12,669 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]=== [2018-04-11 14:48:12,670 INFO L82 PathProgramCache]: Analyzing trace with hash -518239810, now seen corresponding path program 1 times [2018-04-11 14:48:12,670 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:48:12,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:48:12,677 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:48:12,982 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:12,982 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:48:12,982 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-04-11 14:48:12,982 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:48:12,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:12,983 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)))] [2018-04-11 14:48:12,983 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:12,983 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-04-11 14:48:12,983 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-04-11 14:48:12,983 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2018-04-11 14:48:12,983 INFO L87 Difference]: Start difference. First operand 635 states and 751 transitions. Second operand 19 states. [2018-04-11 14:48:13,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:48:13,940 INFO L93 Difference]: Finished difference Result 848 states and 993 transitions. [2018-04-11 14:48:13,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-04-11 14:48:13,941 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 62 [2018-04-11 14:48:13,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:48:13,942 INFO L225 Difference]: With dead ends: 848 [2018-04-11 14:48:13,942 INFO L226 Difference]: Without dead ends: 848 [2018-04-11 14:48:13,943 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 [2018-04-11 14:48:13,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2018-04-11 14:48:13,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 635. [2018-04-11 14:48:13,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 635 states. [2018-04-11 14:48:13,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 748 transitions. [2018-04-11 14:48:13,947 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 748 transitions. Word has length 62 [2018-04-11 14:48:13,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:48:13,947 INFO L459 AbstractCegarLoop]: Abstraction has 635 states and 748 transitions. [2018-04-11 14:48:13,947 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-04-11 14:48:13,947 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 748 transitions. [2018-04-11 14:48:13,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-04-11 14:48:13,947 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:48:13,947 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] [2018-04-11 14:48:13,947 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]=== [2018-04-11 14:48:13,947 INFO L82 PathProgramCache]: Analyzing trace with hash -518239809, now seen corresponding path program 1 times [2018-04-11 14:48:13,948 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:48:13,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:48:13,954 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:48:14,302 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:14,303 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:48:14,303 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-04-11 14:48:14,303 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:48:14,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:14,303 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))] [2018-04-11 14:48:14,303 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:14,303 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-04-11 14:48:14,304 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-04-11 14:48:14,304 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2018-04-11 14:48:14,304 INFO L87 Difference]: Start difference. First operand 635 states and 748 transitions. Second operand 19 states. [2018-04-11 14:48:15,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:48:15,291 INFO L93 Difference]: Finished difference Result 832 states and 970 transitions. [2018-04-11 14:48:15,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-04-11 14:48:15,292 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 62 [2018-04-11 14:48:15,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:48:15,293 INFO L225 Difference]: With dead ends: 832 [2018-04-11 14:48:15,293 INFO L226 Difference]: Without dead ends: 832 [2018-04-11 14:48:15,294 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=278, Invalid=1128, Unknown=0, NotChecked=0, Total=1406 [2018-04-11 14:48:15,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2018-04-11 14:48:15,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 635. [2018-04-11 14:48:15,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 635 states. [2018-04-11 14:48:15,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 745 transitions. [2018-04-11 14:48:15,299 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 745 transitions. Word has length 62 [2018-04-11 14:48:15,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:48:15,299 INFO L459 AbstractCegarLoop]: Abstraction has 635 states and 745 transitions. [2018-04-11 14:48:15,299 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-04-11 14:48:15,299 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 745 transitions. [2018-04-11 14:48:15,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-04-11 14:48:15,299 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:48:15,299 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] [2018-04-11 14:48:15,299 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]=== [2018-04-11 14:48:15,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1266248304, now seen corresponding path program 1 times [2018-04-11 14:48:15,300 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:48:15,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:48:15,304 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:48:15,388 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 14:48:15,389 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:48:15,389 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-04-11 14:48:15,389 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:48:15,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:15,389 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))] [2018-04-11 14:48:15,389 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 14:48:15,389 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-11 14:48:15,389 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-11 14:48:15,389 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2018-04-11 14:48:15,390 INFO L87 Difference]: Start difference. First operand 635 states and 745 transitions. Second operand 12 states. [2018-04-11 14:48:15,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:48:15,814 INFO L93 Difference]: Finished difference Result 716 states and 826 transitions. [2018-04-11 14:48:15,814 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-11 14:48:15,815 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 63 [2018-04-11 14:48:15,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:48:15,816 INFO L225 Difference]: With dead ends: 716 [2018-04-11 14:48:15,816 INFO L226 Difference]: Without dead ends: 716 [2018-04-11 14:48:15,816 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 [2018-04-11 14:48:15,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2018-04-11 14:48:15,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 626. [2018-04-11 14:48:15,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 626 states. [2018-04-11 14:48:15,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 733 transitions. [2018-04-11 14:48:15,820 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 733 transitions. Word has length 63 [2018-04-11 14:48:15,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:48:15,820 INFO L459 AbstractCegarLoop]: Abstraction has 626 states and 733 transitions. [2018-04-11 14:48:15,820 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-11 14:48:15,820 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 733 transitions. [2018-04-11 14:48:15,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-04-11 14:48:15,820 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:48:15,821 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] [2018-04-11 14:48:15,821 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]=== [2018-04-11 14:48:15,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1383646111, now seen corresponding path program 2 times [2018-04-11 14:48:15,821 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:48:15,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:48:15,828 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:48:15,981 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:15,981 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:48:15,981 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-04-11 14:48:15,981 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:48:15,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:15,981 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))] [2018-04-11 14:48:15,982 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:15,982 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-11 14:48:15,982 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-11 14:48:15,982 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2018-04-11 14:48:15,982 INFO L87 Difference]: Start difference. First operand 626 states and 733 transitions. Second operand 16 states. [2018-04-11 14:48:16,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:48:16,519 INFO L93 Difference]: Finished difference Result 850 states and 988 transitions. [2018-04-11 14:48:16,519 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-11 14:48:16,519 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 64 [2018-04-11 14:48:16,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:48:16,521 INFO L225 Difference]: With dead ends: 850 [2018-04-11 14:48:16,521 INFO L226 Difference]: Without dead ends: 850 [2018-04-11 14:48:16,521 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 [2018-04-11 14:48:16,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2018-04-11 14:48:16,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 705. [2018-04-11 14:48:16,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 705 states. [2018-04-11 14:48:16,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 825 transitions. [2018-04-11 14:48:16,525 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 825 transitions. Word has length 64 [2018-04-11 14:48:16,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:48:16,526 INFO L459 AbstractCegarLoop]: Abstraction has 705 states and 825 transitions. [2018-04-11 14:48:16,526 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-11 14:48:16,526 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 825 transitions. [2018-04-11 14:48:16,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-04-11 14:48:16,526 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:48:16,526 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] [2018-04-11 14:48:16,526 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]=== [2018-04-11 14:48:16,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1383646112, now seen corresponding path program 2 times [2018-04-11 14:48:16,527 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:48:16,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:48:16,535 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:48:16,830 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:16,830 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:48:16,830 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-04-11 14:48:16,831 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:48:16,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:16,831 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)))] [2018-04-11 14:48:16,831 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:16,831 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-04-11 14:48:16,831 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-04-11 14:48:16,831 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2018-04-11 14:48:16,831 INFO L87 Difference]: Start difference. First operand 705 states and 825 transitions. Second operand 17 states. [2018-04-11 14:48:17,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:48:17,516 INFO L93 Difference]: Finished difference Result 910 states and 1056 transitions. [2018-04-11 14:48:17,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-04-11 14:48:17,517 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 64 [2018-04-11 14:48:17,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:48:17,518 INFO L225 Difference]: With dead ends: 910 [2018-04-11 14:48:17,518 INFO L226 Difference]: Without dead ends: 910 [2018-04-11 14:48:17,519 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 [2018-04-11 14:48:17,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2018-04-11 14:48:17,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 733. [2018-04-11 14:48:17,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 733 states. [2018-04-11 14:48:17,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 860 transitions. [2018-04-11 14:48:17,523 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 860 transitions. Word has length 64 [2018-04-11 14:48:17,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:48:17,524 INFO L459 AbstractCegarLoop]: Abstraction has 733 states and 860 transitions. [2018-04-11 14:48:17,524 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-04-11 14:48:17,524 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 860 transitions. [2018-04-11 14:48:17,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-04-11 14:48:17,524 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:48:17,524 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] [2018-04-11 14:48:17,524 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]=== [2018-04-11 14:48:17,524 INFO L82 PathProgramCache]: Analyzing trace with hash -1645597525, now seen corresponding path program 1 times [2018-04-11 14:48:17,525 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:48:17,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:48:17,531 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:48:17,648 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:17,648 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:48:17,648 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-04-11 14:48:17,648 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:48:17,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:17,648 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))] [2018-04-11 14:48:17,648 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:17,649 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-11 14:48:17,649 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-11 14:48:17,649 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2018-04-11 14:48:17,649 INFO L87 Difference]: Start difference. First operand 733 states and 860 transitions. Second operand 15 states. [2018-04-11 14:48:18,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:48:18,170 INFO L93 Difference]: Finished difference Result 888 states and 1040 transitions. [2018-04-11 14:48:18,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-11 14:48:18,171 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 66 [2018-04-11 14:48:18,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:48:18,172 INFO L225 Difference]: With dead ends: 888 [2018-04-11 14:48:18,172 INFO L226 Difference]: Without dead ends: 888 [2018-04-11 14:48:18,173 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 [2018-04-11 14:48:18,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2018-04-11 14:48:18,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 733. [2018-04-11 14:48:18,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 733 states. [2018-04-11 14:48:18,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 858 transitions. [2018-04-11 14:48:18,177 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 858 transitions. Word has length 66 [2018-04-11 14:48:18,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:48:18,177 INFO L459 AbstractCegarLoop]: Abstraction has 733 states and 858 transitions. [2018-04-11 14:48:18,177 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-11 14:48:18,177 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 858 transitions. [2018-04-11 14:48:18,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-04-11 14:48:18,177 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:48:18,178 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] [2018-04-11 14:48:18,178 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]=== [2018-04-11 14:48:18,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1909032369, now seen corresponding path program 1 times [2018-04-11 14:48:18,178 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:48:18,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:48:18,185 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:48:18,532 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:18,532 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:48:18,532 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-04-11 14:48:18,532 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:48:18,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:18,533 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))] [2018-04-11 14:48:18,533 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:18,533 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-04-11 14:48:18,533 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-04-11 14:48:18,533 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=474, Unknown=0, NotChecked=0, Total=552 [2018-04-11 14:48:18,533 INFO L87 Difference]: Start difference. First operand 733 states and 858 transitions. Second operand 24 states. [2018-04-11 14:48:19,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:48:19,901 INFO L93 Difference]: Finished difference Result 1079 states and 1266 transitions. [2018-04-11 14:48:19,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-04-11 14:48:19,902 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 67 [2018-04-11 14:48:19,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:48:19,904 INFO L225 Difference]: With dead ends: 1079 [2018-04-11 14:48:19,904 INFO L226 Difference]: Without dead ends: 1079 [2018-04-11 14:48:19,904 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 936 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=838, Invalid=2702, Unknown=0, NotChecked=0, Total=3540 [2018-04-11 14:48:19,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2018-04-11 14:48:19,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 875. [2018-04-11 14:48:19,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 875 states. [2018-04-11 14:48:19,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1020 transitions. [2018-04-11 14:48:19,909 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1020 transitions. Word has length 67 [2018-04-11 14:48:19,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:48:19,909 INFO L459 AbstractCegarLoop]: Abstraction has 875 states and 1020 transitions. [2018-04-11 14:48:19,909 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-04-11 14:48:19,909 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1020 transitions. [2018-04-11 14:48:19,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-04-11 14:48:19,910 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:48:19,910 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] [2018-04-11 14:48:19,910 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]=== [2018-04-11 14:48:19,910 INFO L82 PathProgramCache]: Analyzing trace with hash 1909032370, now seen corresponding path program 1 times [2018-04-11 14:48:19,911 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:48:19,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:48:19,917 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:48:20,236 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:20,236 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:48:20,236 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-04-11 14:48:20,236 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:48:20,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:20,237 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))] [2018-04-11 14:48:20,237 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:20,237 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-11 14:48:20,237 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-11 14:48:20,237 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=311, Unknown=0, NotChecked=0, Total=380 [2018-04-11 14:48:20,237 INFO L87 Difference]: Start difference. First operand 875 states and 1020 transitions. Second operand 20 states. [2018-04-11 14:48:21,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:48:21,026 INFO L93 Difference]: Finished difference Result 1175 states and 1378 transitions. [2018-04-11 14:48:21,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-04-11 14:48:21,026 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 67 [2018-04-11 14:48:21,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:48:21,028 INFO L225 Difference]: With dead ends: 1175 [2018-04-11 14:48:21,028 INFO L226 Difference]: Without dead ends: 1175 [2018-04-11 14:48:21,028 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 [2018-04-11 14:48:21,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states. [2018-04-11 14:48:21,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 858. [2018-04-11 14:48:21,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 858 states. [2018-04-11 14:48:21,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 1000 transitions. [2018-04-11 14:48:21,034 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 1000 transitions. Word has length 67 [2018-04-11 14:48:21,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:48:21,034 INFO L459 AbstractCegarLoop]: Abstraction has 858 states and 1000 transitions. [2018-04-11 14:48:21,034 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-11 14:48:21,034 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 1000 transitions. [2018-04-11 14:48:21,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-04-11 14:48:21,035 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:48:21,035 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] [2018-04-11 14:48:21,035 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]=== [2018-04-11 14:48:21,035 INFO L82 PathProgramCache]: Analyzing trace with hash -1921252145, now seen corresponding path program 3 times [2018-04-11 14:48:21,036 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:48:21,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:48:21,040 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:48:21,179 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:21,179 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:48:21,179 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-04-11 14:48:21,179 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:48:21,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:21,179 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))] [2018-04-11 14:48:21,180 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:21,180 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-11 14:48:21,180 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-11 14:48:21,180 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2018-04-11 14:48:21,180 INFO L87 Difference]: Start difference. First operand 858 states and 1000 transitions. Second operand 15 states. [2018-04-11 14:48:21,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:48:21,731 INFO L93 Difference]: Finished difference Result 888 states and 1017 transitions. [2018-04-11 14:48:21,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-11 14:48:21,731 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 67 [2018-04-11 14:48:21,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:48:21,733 INFO L225 Difference]: With dead ends: 888 [2018-04-11 14:48:21,733 INFO L226 Difference]: Without dead ends: 888 [2018-04-11 14:48:21,734 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 [2018-04-11 14:48:21,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2018-04-11 14:48:21,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 848. [2018-04-11 14:48:21,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 848 states. [2018-04-11 14:48:21,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 978 transitions. [2018-04-11 14:48:21,753 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 978 transitions. Word has length 67 [2018-04-11 14:48:21,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:48:21,753 INFO L459 AbstractCegarLoop]: Abstraction has 848 states and 978 transitions. [2018-04-11 14:48:21,753 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-11 14:48:21,753 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 978 transitions. [2018-04-11 14:48:21,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-04-11 14:48:21,754 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:48:21,754 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] [2018-04-11 14:48:21,754 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]=== [2018-04-11 14:48:21,754 INFO L82 PathProgramCache]: Analyzing trace with hash 719858104, now seen corresponding path program 2 times [2018-04-11 14:48:21,755 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:48:21,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:48:21,761 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:48:22,135 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:22,136 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:48:22,136 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-04-11 14:48:22,136 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:48:22,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:22,136 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))] [2018-04-11 14:48:22,136 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:22,136 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-04-11 14:48:22,136 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-04-11 14:48:22,137 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=432, Unknown=0, NotChecked=0, Total=506 [2018-04-11 14:48:22,137 INFO L87 Difference]: Start difference. First operand 848 states and 978 transitions. Second operand 23 states. [2018-04-11 14:48:23,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:48:23,576 INFO L93 Difference]: Finished difference Result 1260 states and 1465 transitions. [2018-04-11 14:48:23,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-04-11 14:48:23,576 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 67 [2018-04-11 14:48:23,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:48:23,579 INFO L225 Difference]: With dead ends: 1260 [2018-04-11 14:48:23,579 INFO L226 Difference]: Without dead ends: 1260 [2018-04-11 14:48:23,579 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 [2018-04-11 14:48:23,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1260 states. [2018-04-11 14:48:23,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1260 to 830. [2018-04-11 14:48:23,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 830 states. [2018-04-11 14:48:23,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 955 transitions. [2018-04-11 14:48:23,587 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 955 transitions. Word has length 67 [2018-04-11 14:48:23,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:48:23,587 INFO L459 AbstractCegarLoop]: Abstraction has 830 states and 955 transitions. [2018-04-11 14:48:23,587 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-04-11 14:48:23,587 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 955 transitions. [2018-04-11 14:48:23,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-04-11 14:48:23,588 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:48:23,588 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] [2018-04-11 14:48:23,588 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]=== [2018-04-11 14:48:23,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1000066691, now seen corresponding path program 2 times [2018-04-11 14:48:23,588 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:48:23,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:48:23,596 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:48:23,871 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:23,871 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:48:23,871 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-04-11 14:48:23,871 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:48:23,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:23,872 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))] [2018-04-11 14:48:23,872 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:23,872 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-11 14:48:23,872 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-11 14:48:23,872 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2018-04-11 14:48:23,872 INFO L87 Difference]: Start difference. First operand 830 states and 955 transitions. Second operand 18 states. [2018-04-11 14:48:24,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:48:24,569 INFO L93 Difference]: Finished difference Result 897 states and 1021 transitions. [2018-04-11 14:48:24,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-04-11 14:48:24,569 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 70 [2018-04-11 14:48:24,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:48:24,571 INFO L225 Difference]: With dead ends: 897 [2018-04-11 14:48:24,571 INFO L226 Difference]: Without dead ends: 860 [2018-04-11 14:48:24,571 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=177, Invalid=945, Unknown=0, NotChecked=0, Total=1122 [2018-04-11 14:48:24,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2018-04-11 14:48:24,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 811. [2018-04-11 14:48:24,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 811 states. [2018-04-11 14:48:24,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 933 transitions. [2018-04-11 14:48:24,578 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 933 transitions. Word has length 70 [2018-04-11 14:48:24,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:48:24,578 INFO L459 AbstractCegarLoop]: Abstraction has 811 states and 933 transitions. [2018-04-11 14:48:24,578 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-11 14:48:24,579 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 933 transitions. [2018-04-11 14:48:24,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-04-11 14:48:24,579 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:48:24,579 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] [2018-04-11 14:48:24,579 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]=== [2018-04-11 14:48:24,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1641043558, now seen corresponding path program 2 times [2018-04-11 14:48:24,580 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:48:24,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:48:24,587 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:48:25,071 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:25,071 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:48:25,072 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-04-11 14:48:25,072 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:48:25,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:25,072 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)))] [2018-04-11 14:48:25,072 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:25,072 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-04-11 14:48:25,072 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-04-11 14:48:25,073 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=603, Unknown=0, NotChecked=0, Total=702 [2018-04-11 14:48:25,073 INFO L87 Difference]: Start difference. First operand 811 states and 933 transitions. Second operand 27 states. [2018-04-11 14:48:26,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:48:26,981 INFO L93 Difference]: Finished difference Result 1109 states and 1289 transitions. [2018-04-11 14:48:26,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-04-11 14:48:26,981 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 70 [2018-04-11 14:48:26,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:48:26,982 INFO L225 Difference]: With dead ends: 1109 [2018-04-11 14:48:26,982 INFO L226 Difference]: Without dead ends: 1109 [2018-04-11 14:48:26,983 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1247 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=841, Invalid=3715, Unknown=0, NotChecked=0, Total=4556 [2018-04-11 14:48:26,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2018-04-11 14:48:26,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 805. [2018-04-11 14:48:26,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 805 states. [2018-04-11 14:48:26,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 931 transitions. [2018-04-11 14:48:26,988 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 931 transitions. Word has length 70 [2018-04-11 14:48:26,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:48:26,988 INFO L459 AbstractCegarLoop]: Abstraction has 805 states and 931 transitions. [2018-04-11 14:48:26,988 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-04-11 14:48:26,988 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 931 transitions. [2018-04-11 14:48:26,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-04-11 14:48:26,989 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:48:26,989 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] [2018-04-11 14:48:26,989 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]=== [2018-04-11 14:48:26,989 INFO L82 PathProgramCache]: Analyzing trace with hash 1242408043, now seen corresponding path program 2 times [2018-04-11 14:48:26,990 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:48:26,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:48:26,996 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:48:27,597 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 2 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:27,597 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:48:27,597 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-04-11 14:48:27,597 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:48:27,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:27,598 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|))] [2018-04-11 14:48:27,598 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 2 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:27,598 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-04-11 14:48:27,598 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-04-11 14:48:27,598 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=605, Unknown=0, NotChecked=0, Total=702 [2018-04-11 14:48:27,598 INFO L87 Difference]: Start difference. First operand 805 states and 931 transitions. Second operand 27 states. [2018-04-11 14:48:29,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:48:29,205 INFO L93 Difference]: Finished difference Result 1206 states and 1366 transitions. [2018-04-11 14:48:29,205 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-04-11 14:48:29,205 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 72 [2018-04-11 14:48:29,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:48:29,207 INFO L225 Difference]: With dead ends: 1206 [2018-04-11 14:48:29,207 INFO L226 Difference]: Without dead ends: 1206 [2018-04-11 14:48:29,207 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 792 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=678, Invalid=2982, Unknown=0, NotChecked=0, Total=3660 [2018-04-11 14:48:29,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2018-04-11 14:48:29,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 883. [2018-04-11 14:48:29,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 883 states. [2018-04-11 14:48:29,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1016 transitions. [2018-04-11 14:48:29,215 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1016 transitions. Word has length 72 [2018-04-11 14:48:29,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:48:29,215 INFO L459 AbstractCegarLoop]: Abstraction has 883 states and 1016 transitions. [2018-04-11 14:48:29,215 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-04-11 14:48:29,215 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1016 transitions. [2018-04-11 14:48:29,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-04-11 14:48:29,216 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:48:29,216 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] [2018-04-11 14:48:29,216 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]=== [2018-04-11 14:48:29,217 INFO L82 PathProgramCache]: Analyzing trace with hash 69924467, now seen corresponding path program 1 times [2018-04-11 14:48:29,217 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:48:29,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:48:29,226 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:48:29,615 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:29,616 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:48:29,616 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-04-11 14:48:29,616 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:48:29,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:29,616 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)))] [2018-04-11 14:48:29,616 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:29,616 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-04-11 14:48:29,616 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-04-11 14:48:29,617 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2018-04-11 14:48:29,617 INFO L87 Difference]: Start difference. First operand 883 states and 1016 transitions. Second operand 23 states. [2018-04-11 14:48:30,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:48:30,882 INFO L93 Difference]: Finished difference Result 1235 states and 1404 transitions. [2018-04-11 14:48:30,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-04-11 14:48:30,882 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 72 [2018-04-11 14:48:30,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:48:30,884 INFO L225 Difference]: With dead ends: 1235 [2018-04-11 14:48:30,884 INFO L226 Difference]: Without dead ends: 1235 [2018-04-11 14:48:30,884 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 [2018-04-11 14:48:30,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1235 states. [2018-04-11 14:48:30,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1235 to 961. [2018-04-11 14:48:30,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 961 states. [2018-04-11 14:48:30,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1105 transitions. [2018-04-11 14:48:30,892 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 1105 transitions. Word has length 72 [2018-04-11 14:48:30,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:48:30,893 INFO L459 AbstractCegarLoop]: Abstraction has 961 states and 1105 transitions. [2018-04-11 14:48:30,893 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-04-11 14:48:30,893 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1105 transitions. [2018-04-11 14:48:30,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-04-11 14:48:30,894 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:48:30,894 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] [2018-04-11 14:48:30,894 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]=== [2018-04-11 14:48:30,894 INFO L82 PathProgramCache]: Analyzing trace with hash -1538340749, now seen corresponding path program 1 times [2018-04-11 14:48:30,895 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:48:30,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:48:30,904 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:48:31,294 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 2 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:31,294 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:48:31,294 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-04-11 14:48:31,295 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:48:31,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:31,295 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))] [2018-04-11 14:48:31,295 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 2 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:31,295 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-04-11 14:48:31,295 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-04-11 14:48:31,295 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2018-04-11 14:48:31,295 INFO L87 Difference]: Start difference. First operand 961 states and 1105 transitions. Second operand 23 states. [2018-04-11 14:48:32,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:48:32,440 INFO L93 Difference]: Finished difference Result 1303 states and 1480 transitions. [2018-04-11 14:48:32,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-04-11 14:48:32,440 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 72 [2018-04-11 14:48:32,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:48:32,441 INFO L225 Difference]: With dead ends: 1303 [2018-04-11 14:48:32,441 INFO L226 Difference]: Without dead ends: 1303 [2018-04-11 14:48:32,441 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 [2018-04-11 14:48:32,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1303 states. [2018-04-11 14:48:32,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1303 to 877. [2018-04-11 14:48:32,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 877 states. [2018-04-11 14:48:32,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1011 transitions. [2018-04-11 14:48:32,446 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1011 transitions. Word has length 72 [2018-04-11 14:48:32,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:48:32,446 INFO L459 AbstractCegarLoop]: Abstraction has 877 states and 1011 transitions. [2018-04-11 14:48:32,446 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-04-11 14:48:32,446 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1011 transitions. [2018-04-11 14:48:32,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-04-11 14:48:32,447 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:48:32,447 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] [2018-04-11 14:48:32,447 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]=== [2018-04-11 14:48:32,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1649161341, now seen corresponding path program 1 times [2018-04-11 14:48:32,448 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:48:32,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:48:32,456 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:48:33,127 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:33,127 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:48:33,127 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-04-11 14:48:33,127 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:48:33,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:33,128 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|))] [2018-04-11 14:48:33,128 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:33,128 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-04-11 14:48:33,128 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-04-11 14:48:33,128 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=610, Unknown=0, NotChecked=0, Total=702 [2018-04-11 14:48:33,128 INFO L87 Difference]: Start difference. First operand 877 states and 1011 transitions. Second operand 27 states. [2018-04-11 14:48:35,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:48:35,247 INFO L93 Difference]: Finished difference Result 1187 states and 1359 transitions. [2018-04-11 14:48:35,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-04-11 14:48:35,248 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 75 [2018-04-11 14:48:35,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:48:35,249 INFO L225 Difference]: With dead ends: 1187 [2018-04-11 14:48:35,249 INFO L226 Difference]: Without dead ends: 1187 [2018-04-11 14:48:35,249 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 [2018-04-11 14:48:35,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1187 states. [2018-04-11 14:48:35,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1187 to 948. [2018-04-11 14:48:35,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 948 states. [2018-04-11 14:48:35,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1095 transitions. [2018-04-11 14:48:35,254 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1095 transitions. Word has length 75 [2018-04-11 14:48:35,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:48:35,255 INFO L459 AbstractCegarLoop]: Abstraction has 948 states and 1095 transitions. [2018-04-11 14:48:35,255 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-04-11 14:48:35,255 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1095 transitions. [2018-04-11 14:48:35,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-04-11 14:48:35,255 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:48:35,255 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] [2018-04-11 14:48:35,256 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]=== [2018-04-11 14:48:35,256 INFO L82 PathProgramCache]: Analyzing trace with hash 1649161342, now seen corresponding path program 1 times [2018-04-11 14:48:35,256 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:48:35,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:48:35,264 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:48:36,110 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:36,111 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:48:36,111 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-04-11 14:48:36,111 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:48:36,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:36,111 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))] [2018-04-11 14:48:36,111 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:36,112 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-04-11 14:48:36,112 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-04-11 14:48:36,112 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=604, Unknown=0, NotChecked=0, Total=702 [2018-04-11 14:48:36,112 INFO L87 Difference]: Start difference. First operand 948 states and 1095 transitions. Second operand 27 states. [2018-04-11 14:48:38,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:48:38,637 INFO L93 Difference]: Finished difference Result 1171 states and 1337 transitions. [2018-04-11 14:48:38,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-04-11 14:48:38,637 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 75 [2018-04-11 14:48:38,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:48:38,638 INFO L225 Difference]: With dead ends: 1171 [2018-04-11 14:48:38,638 INFO L226 Difference]: Without dead ends: 1171 [2018-04-11 14:48:38,639 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1005 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=677, Invalid=3355, Unknown=0, NotChecked=0, Total=4032 [2018-04-11 14:48:38,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1171 states. [2018-04-11 14:48:38,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1171 to 948. [2018-04-11 14:48:38,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 948 states. [2018-04-11 14:48:38,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1093 transitions. [2018-04-11 14:48:38,647 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1093 transitions. Word has length 75 [2018-04-11 14:48:38,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:48:38,648 INFO L459 AbstractCegarLoop]: Abstraction has 948 states and 1093 transitions. [2018-04-11 14:48:38,648 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-04-11 14:48:38,648 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1093 transitions. [2018-04-11 14:48:38,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-04-11 14:48:38,649 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:48:38,649 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] [2018-04-11 14:48:38,649 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]=== [2018-04-11 14:48:38,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1847685763, now seen corresponding path program 2 times [2018-04-11 14:48:38,650 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:48:38,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:48:38,662 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:48:39,481 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:39,481 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:48:39,481 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2018-04-11 14:48:39,481 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:48:39,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:39,481 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] [2018-04-11 14:48:39,482 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:39,482 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-04-11 14:48:39,482 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-04-11 14:48:39,482 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=820, Unknown=0, NotChecked=0, Total=930 [2018-04-11 14:48:39,482 INFO L87 Difference]: Start difference. First operand 948 states and 1093 transitions. Second operand 31 states. [2018-04-11 14:48:41,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:48:41,788 INFO L93 Difference]: Finished difference Result 1415 states and 1599 transitions. [2018-04-11 14:48:41,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-04-11 14:48:41,788 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 75 [2018-04-11 14:48:41,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:48:41,790 INFO L225 Difference]: With dead ends: 1415 [2018-04-11 14:48:41,790 INFO L226 Difference]: Without dead ends: 1415 [2018-04-11 14:48:41,790 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1400 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1008, Invalid=4692, Unknown=0, NotChecked=0, Total=5700 [2018-04-11 14:48:41,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1415 states. [2018-04-11 14:48:41,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1415 to 978. [2018-04-11 14:48:41,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 978 states. [2018-04-11 14:48:41,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1127 transitions. [2018-04-11 14:48:41,799 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1127 transitions. Word has length 75 [2018-04-11 14:48:41,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:48:41,800 INFO L459 AbstractCegarLoop]: Abstraction has 978 states and 1127 transitions. [2018-04-11 14:48:41,800 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-04-11 14:48:41,800 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1127 transitions. [2018-04-11 14:48:41,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-04-11 14:48:41,801 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:48:41,801 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] [2018-04-11 14:48:41,801 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]=== [2018-04-11 14:48:41,801 INFO L82 PathProgramCache]: Analyzing trace with hash -936475781, now seen corresponding path program 1 times [2018-04-11 14:48:41,802 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:48:41,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:48:41,815 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:48:42,464 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:42,464 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:48:42,464 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-04-11 14:48:42,464 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:48:42,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:42,465 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|))] [2018-04-11 14:48:42,465 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:42,465 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-04-11 14:48:42,465 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-04-11 14:48:42,465 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=606, Unknown=0, NotChecked=0, Total=702 [2018-04-11 14:48:42,466 INFO L87 Difference]: Start difference. First operand 978 states and 1127 transitions. Second operand 27 states. [2018-04-11 14:48:44,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:48:44,592 INFO L93 Difference]: Finished difference Result 1445 states and 1649 transitions. [2018-04-11 14:48:44,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-04-11 14:48:44,593 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 75 [2018-04-11 14:48:44,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:48:44,594 INFO L225 Difference]: With dead ends: 1445 [2018-04-11 14:48:44,594 INFO L226 Difference]: Without dead ends: 1445 [2018-04-11 14:48:44,594 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 [2018-04-11 14:48:44,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2018-04-11 14:48:44,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 994. [2018-04-11 14:48:44,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 994 states. [2018-04-11 14:48:44,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1145 transitions. [2018-04-11 14:48:44,599 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1145 transitions. Word has length 75 [2018-04-11 14:48:44,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:48:44,599 INFO L459 AbstractCegarLoop]: Abstraction has 994 states and 1145 transitions. [2018-04-11 14:48:44,599 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-04-11 14:48:44,600 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1145 transitions. [2018-04-11 14:48:44,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-04-11 14:48:44,600 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:48:44,600 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] [2018-04-11 14:48:44,600 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]=== [2018-04-11 14:48:44,600 INFO L82 PathProgramCache]: Analyzing trace with hash 1889628539, now seen corresponding path program 1 times [2018-04-11 14:48:44,601 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:48:44,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:48:44,609 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:48:45,239 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:45,239 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:48:45,239 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-04-11 14:48:45,240 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:48:45,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:45,240 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))] [2018-04-11 14:48:45,240 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:45,240 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-04-11 14:48:45,240 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-04-11 14:48:45,241 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=607, Unknown=0, NotChecked=0, Total=702 [2018-04-11 14:48:45,241 INFO L87 Difference]: Start difference. First operand 994 states and 1145 transitions. Second operand 27 states. [2018-04-11 14:48:47,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:48:47,012 INFO L93 Difference]: Finished difference Result 1416 states and 1612 transitions. [2018-04-11 14:48:47,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-04-11 14:48:47,012 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 75 [2018-04-11 14:48:47,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:48:47,013 INFO L225 Difference]: With dead ends: 1416 [2018-04-11 14:48:47,014 INFO L226 Difference]: Without dead ends: 1416 [2018-04-11 14:48:47,014 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 [2018-04-11 14:48:47,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1416 states. [2018-04-11 14:48:47,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1416 to 915. [2018-04-11 14:48:47,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 915 states. [2018-04-11 14:48:47,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1051 transitions. [2018-04-11 14:48:47,023 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1051 transitions. Word has length 75 [2018-04-11 14:48:47,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:48:47,023 INFO L459 AbstractCegarLoop]: Abstraction has 915 states and 1051 transitions. [2018-04-11 14:48:47,024 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-04-11 14:48:47,024 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1051 transitions. [2018-04-11 14:48:47,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-04-11 14:48:47,025 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:48:47,025 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] [2018-04-11 14:48:47,025 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]=== [2018-04-11 14:48:47,025 INFO L82 PathProgramCache]: Analyzing trace with hash 298900318, now seen corresponding path program 1 times [2018-04-11 14:48:47,026 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:48:47,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:48:47,037 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:48:47,200 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:47,201 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:48:47,201 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-04-11 14:48:47,201 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:48:47,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:47,201 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))] [2018-04-11 14:48:47,201 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:47,201 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-11 14:48:47,201 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-11 14:48:47,201 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2018-04-11 14:48:47,202 INFO L87 Difference]: Start difference. First operand 915 states and 1051 transitions. Second operand 16 states. [2018-04-11 14:48:47,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:48:47,673 INFO L93 Difference]: Finished difference Result 1247 states and 1427 transitions. [2018-04-11 14:48:47,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-11 14:48:47,673 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 76 [2018-04-11 14:48:47,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:48:47,674 INFO L225 Difference]: With dead ends: 1247 [2018-04-11 14:48:47,674 INFO L226 Difference]: Without dead ends: 1247 [2018-04-11 14:48:47,675 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 [2018-04-11 14:48:47,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1247 states. [2018-04-11 14:48:47,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1247 to 1041. [2018-04-11 14:48:47,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1041 states. [2018-04-11 14:48:47,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1191 transitions. [2018-04-11 14:48:47,680 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1191 transitions. Word has length 76 [2018-04-11 14:48:47,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:48:47,681 INFO L459 AbstractCegarLoop]: Abstraction has 1041 states and 1191 transitions. [2018-04-11 14:48:47,681 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-11 14:48:47,681 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1191 transitions. [2018-04-11 14:48:47,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-04-11 14:48:47,681 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:48:47,682 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] [2018-04-11 14:48:47,682 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]=== [2018-04-11 14:48:47,682 INFO L82 PathProgramCache]: Analyzing trace with hash -1294545116, now seen corresponding path program 4 times [2018-04-11 14:48:47,682 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:48:47,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:48:47,689 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:48:47,914 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:47,914 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:48:47,915 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-04-11 14:48:47,915 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:48:47,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:47,915 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))] [2018-04-11 14:48:47,915 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:47,915 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-04-11 14:48:47,915 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-04-11 14:48:47,915 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2018-04-11 14:48:47,915 INFO L87 Difference]: Start difference. First operand 1041 states and 1191 transitions. Second operand 22 states. [2018-04-11 14:48:48,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:48:48,665 INFO L93 Difference]: Finished difference Result 1188 states and 1355 transitions. [2018-04-11 14:48:48,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-04-11 14:48:48,665 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 77 [2018-04-11 14:48:48,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:48:48,666 INFO L225 Difference]: With dead ends: 1188 [2018-04-11 14:48:48,666 INFO L226 Difference]: Without dead ends: 1188 [2018-04-11 14:48:48,666 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=319, Invalid=1241, Unknown=0, NotChecked=0, Total=1560 [2018-04-11 14:48:48,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1188 states. [2018-04-11 14:48:48,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1188 to 1045. [2018-04-11 14:48:48,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1045 states. [2018-04-11 14:48:48,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1197 transitions. [2018-04-11 14:48:48,672 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1197 transitions. Word has length 77 [2018-04-11 14:48:48,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:48:48,672 INFO L459 AbstractCegarLoop]: Abstraction has 1045 states and 1197 transitions. [2018-04-11 14:48:48,672 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-04-11 14:48:48,672 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1197 transitions. [2018-04-11 14:48:48,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-04-11 14:48:48,673 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:48:48,673 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] [2018-04-11 14:48:48,673 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]=== [2018-04-11 14:48:48,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1294545115, now seen corresponding path program 3 times [2018-04-11 14:48:48,673 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:48:48,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:48:48,681 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:48:49,012 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:49,012 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:48:49,012 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-04-11 14:48:49,012 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:48:49,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:49,012 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)))] [2018-04-11 14:48:49,013 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:49,013 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-11 14:48:49,013 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-11 14:48:49,013 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2018-04-11 14:48:49,013 INFO L87 Difference]: Start difference. First operand 1045 states and 1197 transitions. Second operand 20 states. [2018-04-11 14:48:49,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:48:49,669 INFO L93 Difference]: Finished difference Result 1241 states and 1415 transitions. [2018-04-11 14:48:49,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-04-11 14:48:49,669 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 77 [2018-04-11 14:48:49,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:48:49,670 INFO L225 Difference]: With dead ends: 1241 [2018-04-11 14:48:49,670 INFO L226 Difference]: Without dead ends: 1241 [2018-04-11 14:48:49,670 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 5 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=237, Invalid=953, Unknown=0, NotChecked=0, Total=1190 [2018-04-11 14:48:49,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1241 states. [2018-04-11 14:48:49,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1241 to 1051. [2018-04-11 14:48:49,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1051 states. [2018-04-11 14:48:49,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1051 states to 1051 states and 1205 transitions. [2018-04-11 14:48:49,676 INFO L78 Accepts]: Start accepts. Automaton has 1051 states and 1205 transitions. Word has length 77 [2018-04-11 14:48:49,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:48:49,676 INFO L459 AbstractCegarLoop]: Abstraction has 1051 states and 1205 transitions. [2018-04-11 14:48:49,676 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-11 14:48:49,676 INFO L276 IsEmpty]: Start isEmpty. Operand 1051 states and 1205 transitions. [2018-04-11 14:48:49,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-04-11 14:48:49,677 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:48:49,677 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] [2018-04-11 14:48:49,677 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]=== [2018-04-11 14:48:49,677 INFO L82 PathProgramCache]: Analyzing trace with hash -962522831, now seen corresponding path program 2 times [2018-04-11 14:48:49,678 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:48:49,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:48:49,690 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:48:50,420 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:50,420 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:48:50,420 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-04-11 14:48:50,420 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:48:50,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:50,421 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))] [2018-04-11 14:48:50,421 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:50,421 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-04-11 14:48:50,421 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-04-11 14:48:50,421 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=654, Unknown=0, NotChecked=0, Total=756 [2018-04-11 14:48:50,421 INFO L87 Difference]: Start difference. First operand 1051 states and 1205 transitions. Second operand 28 states. [2018-04-11 14:48:52,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:48:52,776 INFO L93 Difference]: Finished difference Result 1386 states and 1591 transitions. [2018-04-11 14:48:52,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2018-04-11 14:48:52,776 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 78 [2018-04-11 14:48:52,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:48:52,777 INFO L225 Difference]: With dead ends: 1386 [2018-04-11 14:48:52,777 INFO L226 Difference]: Without dead ends: 1386 [2018-04-11 14:48:52,777 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 [2018-04-11 14:48:52,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1386 states. [2018-04-11 14:48:52,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1386 to 1061. [2018-04-11 14:48:52,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1061 states. [2018-04-11 14:48:52,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1216 transitions. [2018-04-11 14:48:52,784 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 1216 transitions. Word has length 78 [2018-04-11 14:48:52,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:48:52,784 INFO L459 AbstractCegarLoop]: Abstraction has 1061 states and 1216 transitions. [2018-04-11 14:48:52,784 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-04-11 14:48:52,784 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 1216 transitions. [2018-04-11 14:48:52,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-04-11 14:48:52,784 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:48:52,785 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] [2018-04-11 14:48:52,785 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]=== [2018-04-11 14:48:52,785 INFO L82 PathProgramCache]: Analyzing trace with hash -962522830, now seen corresponding path program 2 times [2018-04-11 14:48:52,785 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:48:52,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:48:52,798 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:48:53,716 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:53,716 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:48:53,716 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-04-11 14:48:53,716 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:48:53,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:53,717 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)] [2018-04-11 14:48:53,717 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:53,717 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-04-11 14:48:53,717 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-04-11 14:48:53,717 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=644, Unknown=0, NotChecked=0, Total=756 [2018-04-11 14:48:53,717 INFO L87 Difference]: Start difference. First operand 1061 states and 1216 transitions. Second operand 28 states. [2018-04-11 14:48:56,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:48:56,102 INFO L93 Difference]: Finished difference Result 1330 states and 1526 transitions. [2018-04-11 14:48:56,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-04-11 14:48:56,102 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 78 [2018-04-11 14:48:56,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:48:56,103 INFO L225 Difference]: With dead ends: 1330 [2018-04-11 14:48:56,103 INFO L226 Difference]: Without dead ends: 1330 [2018-04-11 14:48:56,103 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 [2018-04-11 14:48:56,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1330 states. [2018-04-11 14:48:56,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1330 to 1029. [2018-04-11 14:48:56,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1029 states. [2018-04-11 14:48:56,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1029 states to 1029 states and 1177 transitions. [2018-04-11 14:48:56,109 INFO L78 Accepts]: Start accepts. Automaton has 1029 states and 1177 transitions. Word has length 78 [2018-04-11 14:48:56,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:48:56,110 INFO L459 AbstractCegarLoop]: Abstraction has 1029 states and 1177 transitions. [2018-04-11 14:48:56,110 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-04-11 14:48:56,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1029 states and 1177 transitions. [2018-04-11 14:48:56,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-04-11 14:48:56,110 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:48:56,110 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] [2018-04-11 14:48:56,110 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]=== [2018-04-11 14:48:56,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1500841335, now seen corresponding path program 1 times [2018-04-11 14:48:56,111 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:48:56,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:48:56,118 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:48:56,340 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:56,340 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:48:56,340 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-04-11 14:48:56,340 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:48:56,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:56,341 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|)))] [2018-04-11 14:48:56,341 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:56,341 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-04-11 14:48:56,341 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-04-11 14:48:56,341 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2018-04-11 14:48:56,341 INFO L87 Difference]: Start difference. First operand 1029 states and 1177 transitions. Second operand 23 states. [2018-04-11 14:48:57,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:48:57,322 INFO L93 Difference]: Finished difference Result 1090 states and 1236 transitions. [2018-04-11 14:48:57,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-04-11 14:48:57,322 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 78 [2018-04-11 14:48:57,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:48:57,323 INFO L225 Difference]: With dead ends: 1090 [2018-04-11 14:48:57,323 INFO L226 Difference]: Without dead ends: 1090 [2018-04-11 14:48:57,324 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 [2018-04-11 14:48:57,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1090 states. [2018-04-11 14:48:57,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1090 to 1042. [2018-04-11 14:48:57,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1042 states. [2018-04-11 14:48:57,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 1192 transitions. [2018-04-11 14:48:57,329 INFO L78 Accepts]: Start accepts. Automaton has 1042 states and 1192 transitions. Word has length 78 [2018-04-11 14:48:57,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:48:57,329 INFO L459 AbstractCegarLoop]: Abstraction has 1042 states and 1192 transitions. [2018-04-11 14:48:57,329 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-04-11 14:48:57,329 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states and 1192 transitions. [2018-04-11 14:48:57,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-04-11 14:48:57,330 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:48:57,330 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] [2018-04-11 14:48:57,330 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]=== [2018-04-11 14:48:57,330 INFO L82 PathProgramCache]: Analyzing trace with hash -1500841334, now seen corresponding path program 1 times [2018-04-11 14:48:57,331 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:48:57,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:48:57,335 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:48:57,411 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 14:48:57,411 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:48:57,411 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-04-11 14:48:57,411 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:48:57,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:57,412 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))] [2018-04-11 14:48:57,412 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 14:48:57,412 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-11 14:48:57,412 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-11 14:48:57,412 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-04-11 14:48:57,413 INFO L87 Difference]: Start difference. First operand 1042 states and 1192 transitions. Second operand 10 states. [2018-04-11 14:48:57,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:48:57,693 INFO L93 Difference]: Finished difference Result 1168 states and 1351 transitions. [2018-04-11 14:48:57,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-11 14:48:57,693 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 78 [2018-04-11 14:48:57,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:48:57,693 INFO L225 Difference]: With dead ends: 1168 [2018-04-11 14:48:57,694 INFO L226 Difference]: Without dead ends: 1168 [2018-04-11 14:48:57,694 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 [2018-04-11 14:48:57,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2018-04-11 14:48:57,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 1048. [2018-04-11 14:48:57,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1048 states. [2018-04-11 14:48:57,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1048 states to 1048 states and 1200 transitions. [2018-04-11 14:48:57,698 INFO L78 Accepts]: Start accepts. Automaton has 1048 states and 1200 transitions. Word has length 78 [2018-04-11 14:48:57,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:48:57,698 INFO L459 AbstractCegarLoop]: Abstraction has 1048 states and 1200 transitions. [2018-04-11 14:48:57,698 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-11 14:48:57,698 INFO L276 IsEmpty]: Start isEmpty. Operand 1048 states and 1200 transitions. [2018-04-11 14:48:57,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-04-11 14:48:57,699 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:48:57,699 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] [2018-04-11 14:48:57,699 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]=== [2018-04-11 14:48:57,699 INFO L82 PathProgramCache]: Analyzing trace with hash -1667977262, now seen corresponding path program 1 times [2018-04-11 14:48:57,699 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:48:57,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:48:57,706 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:48:57,866 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:57,866 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:48:57,866 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-04-11 14:48:57,866 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:48:57,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:57,866 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)))] [2018-04-11 14:48:57,866 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:57,866 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-04-11 14:48:57,867 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-04-11 14:48:57,867 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2018-04-11 14:48:57,867 INFO L87 Difference]: Start difference. First operand 1048 states and 1200 transitions. Second operand 19 states. [2018-04-11 14:48:58,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:48:58,496 INFO L93 Difference]: Finished difference Result 1160 states and 1334 transitions. [2018-04-11 14:48:58,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-04-11 14:48:58,496 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 79 [2018-04-11 14:48:58,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:48:58,497 INFO L225 Difference]: With dead ends: 1160 [2018-04-11 14:48:58,497 INFO L226 Difference]: Without dead ends: 1160 [2018-04-11 14:48:58,497 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 [2018-04-11 14:48:58,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2018-04-11 14:48:58,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 970. [2018-04-11 14:48:58,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 970 states. [2018-04-11 14:48:58,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 1107 transitions. [2018-04-11 14:48:58,501 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 1107 transitions. Word has length 79 [2018-04-11 14:48:58,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:48:58,502 INFO L459 AbstractCegarLoop]: Abstraction has 970 states and 1107 transitions. [2018-04-11 14:48:58,502 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-04-11 14:48:58,502 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 1107 transitions. [2018-04-11 14:48:58,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-04-11 14:48:58,502 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:48:58,502 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] [2018-04-11 14:48:58,502 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]=== [2018-04-11 14:48:58,503 INFO L82 PathProgramCache]: Analyzing trace with hash 718558075, now seen corresponding path program 2 times [2018-04-11 14:48:58,503 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:48:58,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:48:58,507 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:48:58,567 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 14:48:58,567 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:48:58,567 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-04-11 14:48:58,567 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:48:58,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:58,568 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))] [2018-04-11 14:48:58,568 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 14:48:58,568 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-11 14:48:58,568 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-11 14:48:58,568 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-04-11 14:48:58,568 INFO L87 Difference]: Start difference. First operand 970 states and 1107 transitions. Second operand 9 states. [2018-04-11 14:48:58,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:48:58,821 INFO L93 Difference]: Finished difference Result 1085 states and 1253 transitions. [2018-04-11 14:48:58,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-11 14:48:58,822 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2018-04-11 14:48:58,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:48:58,822 INFO L225 Difference]: With dead ends: 1085 [2018-04-11 14:48:58,823 INFO L226 Difference]: Without dead ends: 1085 [2018-04-11 14:48:58,823 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 [2018-04-11 14:48:58,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2018-04-11 14:48:58,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 970. [2018-04-11 14:48:58,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 970 states. [2018-04-11 14:48:58,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 1105 transitions. [2018-04-11 14:48:58,827 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 1105 transitions. Word has length 79 [2018-04-11 14:48:58,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:48:58,827 INFO L459 AbstractCegarLoop]: Abstraction has 970 states and 1105 transitions. [2018-04-11 14:48:58,827 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-11 14:48:58,827 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 1105 transitions. [2018-04-11 14:48:58,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-04-11 14:48:58,828 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:48:58,828 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] [2018-04-11 14:48:58,828 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]=== [2018-04-11 14:48:58,828 INFO L82 PathProgramCache]: Analyzing trace with hash -171959875, now seen corresponding path program 1 times [2018-04-11 14:48:58,829 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:48:58,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:48:58,834 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:48:58,993 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 14:48:58,994 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:48:58,994 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-04-11 14:48:58,994 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:48:58,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:58,994 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))] [2018-04-11 14:48:58,994 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 14:48:58,995 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-11 14:48:58,995 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-11 14:48:58,995 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2018-04-11 14:48:58,995 INFO L87 Difference]: Start difference. First operand 970 states and 1105 transitions. Second operand 15 states. [2018-04-11 14:48:59,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:48:59,350 INFO L93 Difference]: Finished difference Result 1222 states and 1386 transitions. [2018-04-11 14:48:59,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-11 14:48:59,351 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 80 [2018-04-11 14:48:59,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:48:59,352 INFO L225 Difference]: With dead ends: 1222 [2018-04-11 14:48:59,352 INFO L226 Difference]: Without dead ends: 1222 [2018-04-11 14:48:59,352 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 [2018-04-11 14:48:59,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1222 states. [2018-04-11 14:48:59,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1222 to 1193. [2018-04-11 14:48:59,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1193 states. [2018-04-11 14:48:59,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1368 transitions. [2018-04-11 14:48:59,357 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1368 transitions. Word has length 80 [2018-04-11 14:48:59,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:48:59,357 INFO L459 AbstractCegarLoop]: Abstraction has 1193 states and 1368 transitions. [2018-04-11 14:48:59,357 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-11 14:48:59,357 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1368 transitions. [2018-04-11 14:48:59,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-04-11 14:48:59,358 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:48:59,358 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] [2018-04-11 14:48:59,358 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]=== [2018-04-11 14:48:59,358 INFO L82 PathProgramCache]: Analyzing trace with hash -370574766, now seen corresponding path program 2 times [2018-04-11 14:48:59,359 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:48:59,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:48:59,367 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:48:59,807 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:59,808 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:48:59,808 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-04-11 14:48:59,808 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:48:59,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:59,808 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)))))] [2018-04-11 14:48:59,808 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:48:59,808 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-04-11 14:48:59,809 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-04-11 14:48:59,809 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=650, Unknown=0, NotChecked=0, Total=756 [2018-04-11 14:48:59,809 INFO L87 Difference]: Start difference. First operand 1193 states and 1368 transitions. Second operand 28 states. [2018-04-11 14:49:01,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:49:01,618 INFO L93 Difference]: Finished difference Result 1694 states and 1971 transitions. [2018-04-11 14:49:01,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-04-11 14:49:01,618 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 80 [2018-04-11 14:49:01,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:49:01,619 INFO L225 Difference]: With dead ends: 1694 [2018-04-11 14:49:01,619 INFO L226 Difference]: Without dead ends: 1694 [2018-04-11 14:49:01,620 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1253 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1009, Invalid=3413, Unknown=0, NotChecked=0, Total=4422 [2018-04-11 14:49:01,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2018-04-11 14:49:01,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 1309. [2018-04-11 14:49:01,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1309 states. [2018-04-11 14:49:01,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1309 states to 1309 states and 1499 transitions. [2018-04-11 14:49:01,627 INFO L78 Accepts]: Start accepts. Automaton has 1309 states and 1499 transitions. Word has length 80 [2018-04-11 14:49:01,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:49:01,627 INFO L459 AbstractCegarLoop]: Abstraction has 1309 states and 1499 transitions. [2018-04-11 14:49:01,627 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-04-11 14:49:01,628 INFO L276 IsEmpty]: Start isEmpty. Operand 1309 states and 1499 transitions. [2018-04-11 14:49:01,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-04-11 14:49:01,628 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:49:01,629 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] [2018-04-11 14:49:01,629 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]=== [2018-04-11 14:49:01,629 INFO L82 PathProgramCache]: Analyzing trace with hash -370574765, now seen corresponding path program 3 times [2018-04-11 14:49:01,629 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:49:01,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:49:01,639 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:49:02,170 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:02,170 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:49:02,170 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-04-11 14:49:02,170 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:49:02,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:02,171 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))] [2018-04-11 14:49:02,171 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:02,171 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-04-11 14:49:02,171 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-04-11 14:49:02,171 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=464, Unknown=0, NotChecked=0, Total=552 [2018-04-11 14:49:02,171 INFO L87 Difference]: Start difference. First operand 1309 states and 1499 transitions. Second operand 24 states. [2018-04-11 14:49:03,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:49:03,103 INFO L93 Difference]: Finished difference Result 1807 states and 2062 transitions. [2018-04-11 14:49:03,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-04-11 14:49:03,104 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 80 [2018-04-11 14:49:03,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:49:03,105 INFO L225 Difference]: With dead ends: 1807 [2018-04-11 14:49:03,105 INFO L226 Difference]: Without dead ends: 1807 [2018-04-11 14:49:03,105 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 [2018-04-11 14:49:03,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1807 states. [2018-04-11 14:49:03,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1807 to 1402. [2018-04-11 14:49:03,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1402 states. [2018-04-11 14:49:03,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 1606 transitions. [2018-04-11 14:49:03,113 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 1606 transitions. Word has length 80 [2018-04-11 14:49:03,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:49:03,113 INFO L459 AbstractCegarLoop]: Abstraction has 1402 states and 1606 transitions. [2018-04-11 14:49:03,113 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-04-11 14:49:03,114 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 1606 transitions. [2018-04-11 14:49:03,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-04-11 14:49:03,114 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:49:03,114 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] [2018-04-11 14:49:03,114 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]=== [2018-04-11 14:49:03,115 INFO L82 PathProgramCache]: Analyzing trace with hash 800493898, now seen corresponding path program 1 times [2018-04-11 14:49:03,115 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:49:03,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:49:03,121 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:49:03,142 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-04-11 14:49:03,143 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 14:49:03,143 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 14:49:03,143 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:49:03,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:03,143 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)] [2018-04-11 14:49:03,143 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-04-11 14:49:03,144 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 14:49:03,144 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 14:49:03,144 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 14:49:03,144 INFO L87 Difference]: Start difference. First operand 1402 states and 1606 transitions. Second operand 4 states. [2018-04-11 14:49:03,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:49:03,206 INFO L93 Difference]: Finished difference Result 1414 states and 1617 transitions. [2018-04-11 14:49:03,206 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 14:49:03,206 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 80 [2018-04-11 14:49:03,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:49:03,207 INFO L225 Difference]: With dead ends: 1414 [2018-04-11 14:49:03,207 INFO L226 Difference]: Without dead ends: 1414 [2018-04-11 14:49:03,207 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-11 14:49:03,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1414 states. [2018-04-11 14:49:03,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1414 to 1401. [2018-04-11 14:49:03,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1401 states. [2018-04-11 14:49:03,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1401 states to 1401 states and 1605 transitions. [2018-04-11 14:49:03,213 INFO L78 Accepts]: Start accepts. Automaton has 1401 states and 1605 transitions. Word has length 80 [2018-04-11 14:49:03,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:49:03,213 INFO L459 AbstractCegarLoop]: Abstraction has 1401 states and 1605 transitions. [2018-04-11 14:49:03,213 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 14:49:03,213 INFO L276 IsEmpty]: Start isEmpty. Operand 1401 states and 1605 transitions. [2018-04-11 14:49:03,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-04-11 14:49:03,214 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:49:03,214 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] [2018-04-11 14:49:03,214 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]=== [2018-04-11 14:49:03,214 INFO L82 PathProgramCache]: Analyzing trace with hash 800493899, now seen corresponding path program 1 times [2018-04-11 14:49:03,214 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:49:03,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:49:03,219 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:49:03,290 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 14:49:03,290 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:49:03,290 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-04-11 14:49:03,291 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:49:03,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:03,291 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)))] [2018-04-11 14:49:03,291 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 14:49:03,291 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-11 14:49:03,291 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-11 14:49:03,291 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2018-04-11 14:49:03,292 INFO L87 Difference]: Start difference. First operand 1401 states and 1605 transitions. Second operand 12 states. [2018-04-11 14:49:03,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:49:03,663 INFO L93 Difference]: Finished difference Result 1598 states and 1860 transitions. [2018-04-11 14:49:03,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-11 14:49:03,663 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 80 [2018-04-11 14:49:03,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:49:03,664 INFO L225 Difference]: With dead ends: 1598 [2018-04-11 14:49:03,664 INFO L226 Difference]: Without dead ends: 1598 [2018-04-11 14:49:03,664 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 [2018-04-11 14:49:03,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1598 states. [2018-04-11 14:49:03,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1598 to 1405. [2018-04-11 14:49:03,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1405 states. [2018-04-11 14:49:03,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1405 states to 1405 states and 1610 transitions. [2018-04-11 14:49:03,670 INFO L78 Accepts]: Start accepts. Automaton has 1405 states and 1610 transitions. Word has length 80 [2018-04-11 14:49:03,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:49:03,671 INFO L459 AbstractCegarLoop]: Abstraction has 1405 states and 1610 transitions. [2018-04-11 14:49:03,671 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-11 14:49:03,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1405 states and 1610 transitions. [2018-04-11 14:49:03,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-04-11 14:49:03,671 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:49:03,672 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] [2018-04-11 14:49:03,672 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]=== [2018-04-11 14:49:03,672 INFO L82 PathProgramCache]: Analyzing trace with hash -773320692, now seen corresponding path program 3 times [2018-04-11 14:49:03,672 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:49:03,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:49:03,680 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:49:04,071 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:04,071 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:49:04,071 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-04-11 14:49:04,072 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:49:04,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:04,072 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))] [2018-04-11 14:49:04,072 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:04,072 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-04-11 14:49:04,072 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-04-11 14:49:04,072 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=644, Unknown=0, NotChecked=0, Total=756 [2018-04-11 14:49:04,072 INFO L87 Difference]: Start difference. First operand 1405 states and 1610 transitions. Second operand 28 states. [2018-04-11 14:49:06,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:49:06,226 INFO L93 Difference]: Finished difference Result 1963 states and 2275 transitions. [2018-04-11 14:49:06,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2018-04-11 14:49:06,226 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 80 [2018-04-11 14:49:06,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:49:06,227 INFO L225 Difference]: With dead ends: 1963 [2018-04-11 14:49:06,227 INFO L226 Difference]: Without dead ends: 1963 [2018-04-11 14:49:06,228 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 [2018-04-11 14:49:06,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1963 states. [2018-04-11 14:49:06,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1963 to 1495. [2018-04-11 14:49:06,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1495 states. [2018-04-11 14:49:06,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 1712 transitions. [2018-04-11 14:49:06,236 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 1712 transitions. Word has length 80 [2018-04-11 14:49:06,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:49:06,236 INFO L459 AbstractCegarLoop]: Abstraction has 1495 states and 1712 transitions. [2018-04-11 14:49:06,236 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-04-11 14:49:06,236 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 1712 transitions. [2018-04-11 14:49:06,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-04-11 14:49:06,237 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:49:06,237 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] [2018-04-11 14:49:06,237 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]=== [2018-04-11 14:49:06,237 INFO L82 PathProgramCache]: Analyzing trace with hash -773320691, now seen corresponding path program 4 times [2018-04-11 14:49:06,238 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:49:06,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:49:06,247 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:49:06,824 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:06,824 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:49:06,824 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-04-11 14:49:06,825 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:49:06,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:06,825 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)))] [2018-04-11 14:49:06,825 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:06,825 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-04-11 14:49:06,825 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-04-11 14:49:06,825 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=677, Unknown=0, NotChecked=0, Total=812 [2018-04-11 14:49:06,826 INFO L87 Difference]: Start difference. First operand 1495 states and 1712 transitions. Second operand 29 states. [2018-04-11 14:49:09,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:49:09,398 INFO L93 Difference]: Finished difference Result 2022 states and 2349 transitions. [2018-04-11 14:49:09,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2018-04-11 14:49:09,398 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 80 [2018-04-11 14:49:09,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:49:09,399 INFO L225 Difference]: With dead ends: 2022 [2018-04-11 14:49:09,399 INFO L226 Difference]: Without dead ends: 2022 [2018-04-11 14:49:09,400 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1865 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1253, Invalid=5067, Unknown=0, NotChecked=0, Total=6320 [2018-04-11 14:49:09,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2022 states. [2018-04-11 14:49:09,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2022 to 1462. [2018-04-11 14:49:09,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1462 states. [2018-04-11 14:49:09,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 1682 transitions. [2018-04-11 14:49:09,407 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 1682 transitions. Word has length 80 [2018-04-11 14:49:09,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:49:09,407 INFO L459 AbstractCegarLoop]: Abstraction has 1462 states and 1682 transitions. [2018-04-11 14:49:09,407 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-04-11 14:49:09,407 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 1682 transitions. [2018-04-11 14:49:09,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-04-11 14:49:09,408 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:49:09,409 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] [2018-04-11 14:49:09,409 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]=== [2018-04-11 14:49:09,409 INFO L82 PathProgramCache]: Analyzing trace with hash -308637910, now seen corresponding path program 5 times [2018-04-11 14:49:09,409 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:49:09,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:49:09,415 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:49:09,640 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:09,640 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:49:09,641 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-04-11 14:49:09,641 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:49:09,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:09,641 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|))] [2018-04-11 14:49:09,641 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:09,641 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-11 14:49:09,641 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-11 14:49:09,641 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2018-04-11 14:49:09,641 INFO L87 Difference]: Start difference. First operand 1462 states and 1682 transitions. Second operand 20 states. [2018-04-11 14:49:10,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:49:10,439 INFO L93 Difference]: Finished difference Result 1700 states and 1958 transitions. [2018-04-11 14:49:10,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-04-11 14:49:10,439 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 80 [2018-04-11 14:49:10,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:49:10,440 INFO L225 Difference]: With dead ends: 1700 [2018-04-11 14:49:10,440 INFO L226 Difference]: Without dead ends: 1700 [2018-04-11 14:49:10,440 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 [2018-04-11 14:49:10,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1700 states. [2018-04-11 14:49:10,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1700 to 1567. [2018-04-11 14:49:10,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1567 states. [2018-04-11 14:49:10,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 1796 transitions. [2018-04-11 14:49:10,447 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 1796 transitions. Word has length 80 [2018-04-11 14:49:10,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:49:10,447 INFO L459 AbstractCegarLoop]: Abstraction has 1567 states and 1796 transitions. [2018-04-11 14:49:10,447 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-11 14:49:10,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 1796 transitions. [2018-04-11 14:49:10,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-04-11 14:49:10,448 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:49:10,448 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] [2018-04-11 14:49:10,448 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]=== [2018-04-11 14:49:10,449 INFO L82 PathProgramCache]: Analyzing trace with hash -308637909, now seen corresponding path program 4 times [2018-04-11 14:49:10,449 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:49:10,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:49:10,454 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:49:10,731 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:10,732 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:49:10,732 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-04-11 14:49:10,732 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:49:10,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:10,732 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] [2018-04-11 14:49:10,732 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:10,732 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-04-11 14:49:10,732 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-04-11 14:49:10,732 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2018-04-11 14:49:10,733 INFO L87 Difference]: Start difference. First operand 1567 states and 1796 transitions. Second operand 19 states. [2018-04-11 14:49:11,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:49:11,714 INFO L93 Difference]: Finished difference Result 1771 states and 2040 transitions. [2018-04-11 14:49:11,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-11 14:49:11,715 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 80 [2018-04-11 14:49:11,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:49:11,716 INFO L225 Difference]: With dead ends: 1771 [2018-04-11 14:49:11,716 INFO L226 Difference]: Without dead ends: 1771 [2018-04-11 14:49:11,716 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 [2018-04-11 14:49:11,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1771 states. [2018-04-11 14:49:11,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1771 to 1561. [2018-04-11 14:49:11,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1561 states. [2018-04-11 14:49:11,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1561 states to 1561 states and 1787 transitions. [2018-04-11 14:49:11,723 INFO L78 Accepts]: Start accepts. Automaton has 1561 states and 1787 transitions. Word has length 80 [2018-04-11 14:49:11,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:49:11,723 INFO L459 AbstractCegarLoop]: Abstraction has 1561 states and 1787 transitions. [2018-04-11 14:49:11,723 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-04-11 14:49:11,723 INFO L276 IsEmpty]: Start isEmpty. Operand 1561 states and 1787 transitions. [2018-04-11 14:49:11,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-04-11 14:49:11,724 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:49:11,724 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] [2018-04-11 14:49:11,724 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]=== [2018-04-11 14:49:11,725 INFO L82 PathProgramCache]: Analyzing trace with hash -2094753340, now seen corresponding path program 1 times [2018-04-11 14:49:11,725 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:49:11,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:49:11,731 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:49:11,816 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-04-11 14:49:11,816 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:49:11,816 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-04-11 14:49:11,816 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:49:11,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:11,844 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))] [2018-04-11 14:49:11,844 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-04-11 14:49:11,844 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-11 14:49:11,844 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-11 14:49:11,844 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-04-11 14:49:11,844 INFO L87 Difference]: Start difference. First operand 1561 states and 1787 transitions. Second operand 10 states. [2018-04-11 14:49:12,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:49:12,053 INFO L93 Difference]: Finished difference Result 1879 states and 2140 transitions. [2018-04-11 14:49:12,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-11 14:49:12,053 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 81 [2018-04-11 14:49:12,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:49:12,054 INFO L225 Difference]: With dead ends: 1879 [2018-04-11 14:49:12,054 INFO L226 Difference]: Without dead ends: 1879 [2018-04-11 14:49:12,054 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 [2018-04-11 14:49:12,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1879 states. [2018-04-11 14:49:12,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1879 to 1292. [2018-04-11 14:49:12,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1292 states. [2018-04-11 14:49:12,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1292 states to 1292 states and 1471 transitions. [2018-04-11 14:49:12,061 INFO L78 Accepts]: Start accepts. Automaton has 1292 states and 1471 transitions. Word has length 81 [2018-04-11 14:49:12,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:49:12,061 INFO L459 AbstractCegarLoop]: Abstraction has 1292 states and 1471 transitions. [2018-04-11 14:49:12,061 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-11 14:49:12,061 INFO L276 IsEmpty]: Start isEmpty. Operand 1292 states and 1471 transitions. [2018-04-11 14:49:12,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-04-11 14:49:12,062 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:49:12,062 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] [2018-04-11 14:49:12,062 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]=== [2018-04-11 14:49:12,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1537475776, now seen corresponding path program 1 times [2018-04-11 14:49:12,062 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:49:12,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:49:12,069 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:49:12,427 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:12,427 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:49:12,427 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-04-11 14:49:12,427 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:49:12,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:12,428 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))] [2018-04-11 14:49:12,428 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:12,428 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-11 14:49:12,428 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-11 14:49:12,428 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2018-04-11 14:49:12,428 INFO L87 Difference]: Start difference. First operand 1292 states and 1471 transitions. Second operand 20 states. [2018-04-11 14:49:13,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:49:13,387 INFO L93 Difference]: Finished difference Result 1349 states and 1525 transitions. [2018-04-11 14:49:13,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-04-11 14:49:13,388 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 82 [2018-04-11 14:49:13,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:49:13,388 INFO L225 Difference]: With dead ends: 1349 [2018-04-11 14:49:13,389 INFO L226 Difference]: Without dead ends: 1335 [2018-04-11 14:49:13,389 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 [2018-04-11 14:49:13,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1335 states. [2018-04-11 14:49:13,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1335 to 1286. [2018-04-11 14:49:13,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1286 states. [2018-04-11 14:49:13,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 1459 transitions. [2018-04-11 14:49:13,394 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 1459 transitions. Word has length 82 [2018-04-11 14:49:13,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:49:13,394 INFO L459 AbstractCegarLoop]: Abstraction has 1286 states and 1459 transitions. [2018-04-11 14:49:13,394 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-11 14:49:13,394 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 1459 transitions. [2018-04-11 14:49:13,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-04-11 14:49:13,395 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:49:13,395 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] [2018-04-11 14:49:13,395 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]=== [2018-04-11 14:49:13,396 INFO L82 PathProgramCache]: Analyzing trace with hash 475495915, now seen corresponding path program 1 times [2018-04-11 14:49:13,396 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:49:13,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:49:13,401 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:49:13,528 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 14:49:13,529 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:49:13,529 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-04-11 14:49:13,529 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:49:13,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:13,529 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))] [2018-04-11 14:49:13,529 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 14:49:13,529 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-11 14:49:13,530 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-11 14:49:13,530 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2018-04-11 14:49:13,530 INFO L87 Difference]: Start difference. First operand 1286 states and 1459 transitions. Second operand 16 states. [2018-04-11 14:49:13,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:49:13,997 INFO L93 Difference]: Finished difference Result 1351 states and 1524 transitions. [2018-04-11 14:49:13,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-04-11 14:49:13,997 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 82 [2018-04-11 14:49:13,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:49:13,998 INFO L225 Difference]: With dead ends: 1351 [2018-04-11 14:49:13,998 INFO L226 Difference]: Without dead ends: 1351 [2018-04-11 14:49:13,999 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 [2018-04-11 14:49:13,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1351 states. [2018-04-11 14:49:14,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1351 to 1324. [2018-04-11 14:49:14,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1324 states. [2018-04-11 14:49:14,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 1502 transitions. [2018-04-11 14:49:14,005 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 1502 transitions. Word has length 82 [2018-04-11 14:49:14,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:49:14,006 INFO L459 AbstractCegarLoop]: Abstraction has 1324 states and 1502 transitions. [2018-04-11 14:49:14,006 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-11 14:49:14,006 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 1502 transitions. [2018-04-11 14:49:14,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-04-11 14:49:14,007 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:49:14,007 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] [2018-04-11 14:49:14,007 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]=== [2018-04-11 14:49:14,007 INFO L82 PathProgramCache]: Analyzing trace with hash -753341124, now seen corresponding path program 4 times [2018-04-11 14:49:14,008 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:49:14,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:49:14,015 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:49:14,376 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:14,376 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:49:14,376 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-04-11 14:49:14,377 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:49:14,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:14,377 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] [2018-04-11 14:49:14,377 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:14,377 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-04-11 14:49:14,377 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-04-11 14:49:14,377 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=573, Unknown=0, NotChecked=0, Total=650 [2018-04-11 14:49:14,377 INFO L87 Difference]: Start difference. First operand 1324 states and 1502 transitions. Second operand 26 states. [2018-04-11 14:49:16,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:49:16,112 INFO L93 Difference]: Finished difference Result 1546 states and 1761 transitions. [2018-04-11 14:49:16,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-04-11 14:49:16,112 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 83 [2018-04-11 14:49:16,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:49:16,113 INFO L225 Difference]: With dead ends: 1546 [2018-04-11 14:49:16,113 INFO L226 Difference]: Without dead ends: 1546 [2018-04-11 14:49:16,114 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 [2018-04-11 14:49:16,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1546 states. [2018-04-11 14:49:16,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1546 to 1387. [2018-04-11 14:49:16,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1387 states. [2018-04-11 14:49:16,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1387 states to 1387 states and 1573 transitions. [2018-04-11 14:49:16,120 INFO L78 Accepts]: Start accepts. Automaton has 1387 states and 1573 transitions. Word has length 83 [2018-04-11 14:49:16,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:49:16,120 INFO L459 AbstractCegarLoop]: Abstraction has 1387 states and 1573 transitions. [2018-04-11 14:49:16,120 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-04-11 14:49:16,120 INFO L276 IsEmpty]: Start isEmpty. Operand 1387 states and 1573 transitions. [2018-04-11 14:49:16,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-04-11 14:49:16,121 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:49:16,121 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] [2018-04-11 14:49:16,121 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]=== [2018-04-11 14:49:16,121 INFO L82 PathProgramCache]: Analyzing trace with hash -753341123, now seen corresponding path program 5 times [2018-04-11 14:49:16,122 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:49:16,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:49:16,128 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:49:16,562 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:16,563 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:49:16,563 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-04-11 14:49:16,563 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:49:16,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:16,563 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))] [2018-04-11 14:49:16,563 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:16,563 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-04-11 14:49:16,564 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-04-11 14:49:16,564 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=625, Unknown=0, NotChecked=0, Total=702 [2018-04-11 14:49:16,564 INFO L87 Difference]: Start difference. First operand 1387 states and 1573 transitions. Second operand 27 states. [2018-04-11 14:49:18,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:49:18,893 INFO L93 Difference]: Finished difference Result 1576 states and 1794 transitions. [2018-04-11 14:49:18,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2018-04-11 14:49:18,893 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 83 [2018-04-11 14:49:18,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:49:18,894 INFO L225 Difference]: With dead ends: 1576 [2018-04-11 14:49:18,894 INFO L226 Difference]: Without dead ends: 1576 [2018-04-11 14:49:18,895 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 [2018-04-11 14:49:18,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2018-04-11 14:49:18,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1359. [2018-04-11 14:49:18,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1359 states. [2018-04-11 14:49:18,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1359 states to 1359 states and 1541 transitions. [2018-04-11 14:49:18,902 INFO L78 Accepts]: Start accepts. Automaton has 1359 states and 1541 transitions. Word has length 83 [2018-04-11 14:49:18,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:49:18,902 INFO L459 AbstractCegarLoop]: Abstraction has 1359 states and 1541 transitions. [2018-04-11 14:49:18,902 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-04-11 14:49:18,902 INFO L276 IsEmpty]: Start isEmpty. Operand 1359 states and 1541 transitions. [2018-04-11 14:49:18,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-04-11 14:49:18,903 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:49:18,903 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] [2018-04-11 14:49:18,903 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]=== [2018-04-11 14:49:18,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1855460742, now seen corresponding path program 1 times [2018-04-11 14:49:18,903 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:49:18,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:49:18,912 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:49:19,137 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 14:49:19,138 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:49:19,138 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-04-11 14:49:19,138 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:49:19,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:19,138 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|)] [2018-04-11 14:49:19,138 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 14:49:19,138 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-04-11 14:49:19,138 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-04-11 14:49:19,139 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2018-04-11 14:49:19,139 INFO L87 Difference]: Start difference. First operand 1359 states and 1541 transitions. Second operand 17 states. [2018-04-11 14:49:20,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:49:20,105 INFO L93 Difference]: Finished difference Result 1519 states and 1706 transitions. [2018-04-11 14:49:20,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-04-11 14:49:20,106 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 83 [2018-04-11 14:49:20,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:49:20,107 INFO L225 Difference]: With dead ends: 1519 [2018-04-11 14:49:20,107 INFO L226 Difference]: Without dead ends: 1519 [2018-04-11 14:49:20,107 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 [2018-04-11 14:49:20,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1519 states. [2018-04-11 14:49:20,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1519 to 1359. [2018-04-11 14:49:20,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1359 states. [2018-04-11 14:49:20,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1359 states to 1359 states and 1540 transitions. [2018-04-11 14:49:20,113 INFO L78 Accepts]: Start accepts. Automaton has 1359 states and 1540 transitions. Word has length 83 [2018-04-11 14:49:20,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:49:20,113 INFO L459 AbstractCegarLoop]: Abstraction has 1359 states and 1540 transitions. [2018-04-11 14:49:20,113 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-04-11 14:49:20,114 INFO L276 IsEmpty]: Start isEmpty. Operand 1359 states and 1540 transitions. [2018-04-11 14:49:20,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-04-11 14:49:20,114 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:49:20,114 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] [2018-04-11 14:49:20,114 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]=== [2018-04-11 14:49:20,115 INFO L82 PathProgramCache]: Analyzing trace with hash 1181402434, now seen corresponding path program 5 times [2018-04-11 14:49:20,115 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:49:20,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:49:20,126 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:49:20,482 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:20,482 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:49:20,482 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-04-11 14:49:20,482 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:49:20,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:20,482 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)))] [2018-04-11 14:49:20,483 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:20,483 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-04-11 14:49:20,483 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-04-11 14:49:20,483 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2018-04-11 14:49:20,483 INFO L87 Difference]: Start difference. First operand 1359 states and 1540 transitions. Second operand 25 states. [2018-04-11 14:49:22,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:49:22,138 INFO L93 Difference]: Finished difference Result 1572 states and 1788 transitions. [2018-04-11 14:49:22,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-04-11 14:49:22,139 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 83 [2018-04-11 14:49:22,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:49:22,139 INFO L225 Difference]: With dead ends: 1572 [2018-04-11 14:49:22,140 INFO L226 Difference]: Without dead ends: 1572 [2018-04-11 14:49:22,140 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 880 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=634, Invalid=3272, Unknown=0, NotChecked=0, Total=3906 [2018-04-11 14:49:22,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1572 states. [2018-04-11 14:49:22,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1572 to 1387. [2018-04-11 14:49:22,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1387 states. [2018-04-11 14:49:22,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1387 states to 1387 states and 1572 transitions. [2018-04-11 14:49:22,146 INFO L78 Accepts]: Start accepts. Automaton has 1387 states and 1572 transitions. Word has length 83 [2018-04-11 14:49:22,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:49:22,146 INFO L459 AbstractCegarLoop]: Abstraction has 1387 states and 1572 transitions. [2018-04-11 14:49:22,146 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-04-11 14:49:22,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1387 states and 1572 transitions. [2018-04-11 14:49:22,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-04-11 14:49:22,147 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:49:22,147 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] [2018-04-11 14:49:22,147 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]=== [2018-04-11 14:49:22,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1181402435, now seen corresponding path program 6 times [2018-04-11 14:49:22,148 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:49:22,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:49:22,154 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:49:22,572 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:22,572 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:49:22,572 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-04-11 14:49:22,573 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:49:22,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:22,573 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))] [2018-04-11 14:49:22,573 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:22,573 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-04-11 14:49:22,573 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-04-11 14:49:22,573 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=572, Unknown=0, NotChecked=0, Total=650 [2018-04-11 14:49:22,573 INFO L87 Difference]: Start difference. First operand 1387 states and 1572 transitions. Second operand 26 states. [2018-04-11 14:49:24,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:49:24,154 INFO L93 Difference]: Finished difference Result 1602 states and 1821 transitions. [2018-04-11 14:49:24,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-04-11 14:49:24,155 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 83 [2018-04-11 14:49:24,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:49:24,155 INFO L225 Difference]: With dead ends: 1602 [2018-04-11 14:49:24,156 INFO L226 Difference]: Without dead ends: 1602 [2018-04-11 14:49:24,156 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 [2018-04-11 14:49:24,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1602 states. [2018-04-11 14:49:24,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1602 to 1306. [2018-04-11 14:49:24,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1306 states. [2018-04-11 14:49:24,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1306 states to 1306 states and 1484 transitions. [2018-04-11 14:49:24,162 INFO L78 Accepts]: Start accepts. Automaton has 1306 states and 1484 transitions. Word has length 83 [2018-04-11 14:49:24,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:49:24,162 INFO L459 AbstractCegarLoop]: Abstraction has 1306 states and 1484 transitions. [2018-04-11 14:49:24,162 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-04-11 14:49:24,162 INFO L276 IsEmpty]: Start isEmpty. Operand 1306 states and 1484 transitions. [2018-04-11 14:49:24,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-04-11 14:49:24,162 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:49:24,163 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] [2018-04-11 14:49:24,163 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]=== [2018-04-11 14:49:24,163 INFO L82 PathProgramCache]: Analyzing trace with hash -2132499392, now seen corresponding path program 1 times [2018-04-11 14:49:24,163 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:49:24,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:49:24,168 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:49:24,440 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 14:49:24,441 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:49:24,441 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-04-11 14:49:24,441 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:49:24,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:24,441 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)))] [2018-04-11 14:49:24,441 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 14:49:24,441 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-11 14:49:24,442 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-11 14:49:24,442 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2018-04-11 14:49:24,442 INFO L87 Difference]: Start difference. First operand 1306 states and 1484 transitions. Second operand 18 states. [2018-04-11 14:49:24,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:49:24,885 INFO L93 Difference]: Finished difference Result 1498 states and 1688 transitions. [2018-04-11 14:49:24,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-11 14:49:24,885 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 84 [2018-04-11 14:49:24,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:49:24,886 INFO L225 Difference]: With dead ends: 1498 [2018-04-11 14:49:24,886 INFO L226 Difference]: Without dead ends: 1498 [2018-04-11 14:49:24,886 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 [2018-04-11 14:49:24,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1498 states. [2018-04-11 14:49:24,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1498 to 1306. [2018-04-11 14:49:24,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1306 states. [2018-04-11 14:49:24,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1306 states to 1306 states and 1483 transitions. [2018-04-11 14:49:24,892 INFO L78 Accepts]: Start accepts. Automaton has 1306 states and 1483 transitions. Word has length 84 [2018-04-11 14:49:24,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:49:24,892 INFO L459 AbstractCegarLoop]: Abstraction has 1306 states and 1483 transitions. [2018-04-11 14:49:24,892 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-11 14:49:24,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1306 states and 1483 transitions. [2018-04-11 14:49:24,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-04-11 14:49:24,893 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:49:24,893 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] [2018-04-11 14:49:24,893 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]=== [2018-04-11 14:49:24,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1684708395, now seen corresponding path program 1 times [2018-04-11 14:49:24,893 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:49:24,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:49:24,899 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:49:25,307 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 14:49:25,307 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:49:25,307 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-04-11 14:49:25,307 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:49:25,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:25,308 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|))] [2018-04-11 14:49:25,308 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 14:49:25,308 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-04-11 14:49:25,308 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-04-11 14:49:25,308 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2018-04-11 14:49:25,308 INFO L87 Difference]: Start difference. First operand 1306 states and 1483 transitions. Second operand 23 states. [2018-04-11 14:49:26,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:49:26,389 INFO L93 Difference]: Finished difference Result 2001 states and 2234 transitions. [2018-04-11 14:49:26,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-04-11 14:49:26,389 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 84 [2018-04-11 14:49:26,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:49:26,391 INFO L225 Difference]: With dead ends: 2001 [2018-04-11 14:49:26,391 INFO L226 Difference]: Without dead ends: 2001 [2018-04-11 14:49:26,391 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 603 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=638, Invalid=2224, Unknown=0, NotChecked=0, Total=2862 [2018-04-11 14:49:26,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2001 states. [2018-04-11 14:49:26,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2001 to 1376. [2018-04-11 14:49:26,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1376 states. [2018-04-11 14:49:26,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 1556 transitions. [2018-04-11 14:49:26,398 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 1556 transitions. Word has length 84 [2018-04-11 14:49:26,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:49:26,398 INFO L459 AbstractCegarLoop]: Abstraction has 1376 states and 1556 transitions. [2018-04-11 14:49:26,398 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-04-11 14:49:26,398 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 1556 transitions. [2018-04-11 14:49:26,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-04-11 14:49:26,399 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:49:26,399 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] [2018-04-11 14:49:26,399 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]=== [2018-04-11 14:49:26,399 INFO L82 PathProgramCache]: Analyzing trace with hash 1177416755, now seen corresponding path program 1 times [2018-04-11 14:49:26,400 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:49:26,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:49:26,405 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:49:26,712 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:26,712 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:49:26,735 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-04-11 14:49:26,735 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:49:26,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:26,736 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)))] [2018-04-11 14:49:26,736 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:26,736 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-04-11 14:49:26,736 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-04-11 14:49:26,736 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2018-04-11 14:49:26,736 INFO L87 Difference]: Start difference. First operand 1376 states and 1556 transitions. Second operand 23 states. [2018-04-11 14:49:28,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:49:28,124 INFO L93 Difference]: Finished difference Result 1611 states and 1801 transitions. [2018-04-11 14:49:28,124 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-04-11 14:49:28,125 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 84 [2018-04-11 14:49:28,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:49:28,126 INFO L225 Difference]: With dead ends: 1611 [2018-04-11 14:49:28,126 INFO L226 Difference]: Without dead ends: 1611 [2018-04-11 14:49:28,126 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 [2018-04-11 14:49:28,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2018-04-11 14:49:28,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 1300. [2018-04-11 14:49:28,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1300 states. [2018-04-11 14:49:28,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1300 states to 1300 states and 1475 transitions. [2018-04-11 14:49:28,132 INFO L78 Accepts]: Start accepts. Automaton has 1300 states and 1475 transitions. Word has length 84 [2018-04-11 14:49:28,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:49:28,132 INFO L459 AbstractCegarLoop]: Abstraction has 1300 states and 1475 transitions. [2018-04-11 14:49:28,132 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-04-11 14:49:28,132 INFO L276 IsEmpty]: Start isEmpty. Operand 1300 states and 1475 transitions. [2018-04-11 14:49:28,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-04-11 14:49:28,133 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:49:28,133 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] [2018-04-11 14:49:28,133 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]=== [2018-04-11 14:49:28,134 INFO L82 PathProgramCache]: Analyzing trace with hash 152763220, now seen corresponding path program 1 times [2018-04-11 14:49:28,134 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:49:28,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:49:28,142 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:49:28,424 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-04-11 14:49:28,424 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:49:28,424 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-04-11 14:49:28,424 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:49:28,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:28,425 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|))] [2018-04-11 14:49:28,425 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-04-11 14:49:28,425 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-11 14:49:28,425 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-11 14:49:28,425 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2018-04-11 14:49:28,425 INFO L87 Difference]: Start difference. First operand 1300 states and 1475 transitions. Second operand 20 states. [2018-04-11 14:49:29,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:49:29,230 INFO L93 Difference]: Finished difference Result 1482 states and 1668 transitions. [2018-04-11 14:49:29,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-11 14:49:29,230 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 85 [2018-04-11 14:49:29,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:49:29,231 INFO L225 Difference]: With dead ends: 1482 [2018-04-11 14:49:29,231 INFO L226 Difference]: Without dead ends: 1465 [2018-04-11 14:49:29,232 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 [2018-04-11 14:49:29,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1465 states. [2018-04-11 14:49:29,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1465 to 1292. [2018-04-11 14:49:29,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1292 states. [2018-04-11 14:49:29,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1292 states to 1292 states and 1462 transitions. [2018-04-11 14:49:29,237 INFO L78 Accepts]: Start accepts. Automaton has 1292 states and 1462 transitions. Word has length 85 [2018-04-11 14:49:29,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:49:29,237 INFO L459 AbstractCegarLoop]: Abstraction has 1292 states and 1462 transitions. [2018-04-11 14:49:29,237 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-11 14:49:29,237 INFO L276 IsEmpty]: Start isEmpty. Operand 1292 states and 1462 transitions. [2018-04-11 14:49:29,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-04-11 14:49:29,238 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:49:29,238 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] [2018-04-11 14:49:29,238 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]=== [2018-04-11 14:49:29,238 INFO L82 PathProgramCache]: Analyzing trace with hash 1690196720, now seen corresponding path program 3 times [2018-04-11 14:49:29,239 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:49:29,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:49:29,246 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:49:30,091 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 2 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:30,091 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:49:30,091 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2018-04-11 14:49:30,091 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:49:30,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:30,091 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))] [2018-04-11 14:49:30,091 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 2 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:30,092 INFO L442 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-04-11 14:49:30,092 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-04-11 14:49:30,092 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=858, Unknown=0, NotChecked=0, Total=992 [2018-04-11 14:49:30,092 INFO L87 Difference]: Start difference. First operand 1292 states and 1462 transitions. Second operand 32 states. [2018-04-11 14:49:31,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:49:31,984 INFO L93 Difference]: Finished difference Result 1956 states and 2185 transitions. [2018-04-11 14:49:31,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-04-11 14:49:31,985 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 85 [2018-04-11 14:49:31,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:49:31,986 INFO L225 Difference]: With dead ends: 1956 [2018-04-11 14:49:31,986 INFO L226 Difference]: Without dead ends: 1956 [2018-04-11 14:49:31,986 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 [2018-04-11 14:49:31,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1956 states. [2018-04-11 14:49:31,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1956 to 1369. [2018-04-11 14:49:31,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1369 states. [2018-04-11 14:49:31,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1369 states to 1369 states and 1549 transitions. [2018-04-11 14:49:31,993 INFO L78 Accepts]: Start accepts. Automaton has 1369 states and 1549 transitions. Word has length 85 [2018-04-11 14:49:31,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:49:31,993 INFO L459 AbstractCegarLoop]: Abstraction has 1369 states and 1549 transitions. [2018-04-11 14:49:31,993 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-04-11 14:49:31,993 INFO L276 IsEmpty]: Start isEmpty. Operand 1369 states and 1549 transitions. [2018-04-11 14:49:31,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-04-11 14:49:31,994 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:49:31,994 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] [2018-04-11 14:49:31,994 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]=== [2018-04-11 14:49:31,994 INFO L82 PathProgramCache]: Analyzing trace with hash -616262168, now seen corresponding path program 2 times [2018-04-11 14:49:31,995 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:49:32,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:49:32,004 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:49:32,601 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:32,601 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:49:32,601 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-04-11 14:49:32,601 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:49:32,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:32,602 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))] [2018-04-11 14:49:32,602 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:32,602 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-04-11 14:49:32,602 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-04-11 14:49:32,602 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=636, Unknown=0, NotChecked=0, Total=756 [2018-04-11 14:49:32,602 INFO L87 Difference]: Start difference. First operand 1369 states and 1549 transitions. Second operand 28 states. [2018-04-11 14:49:34,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:49:34,251 INFO L93 Difference]: Finished difference Result 1874 states and 2105 transitions. [2018-04-11 14:49:34,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-04-11 14:49:34,251 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 85 [2018-04-11 14:49:34,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:49:34,252 INFO L225 Difference]: With dead ends: 1874 [2018-04-11 14:49:34,252 INFO L226 Difference]: Without dead ends: 1874 [2018-04-11 14:49:34,253 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 [2018-04-11 14:49:34,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1874 states. [2018-04-11 14:49:34,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1874 to 1439. [2018-04-11 14:49:34,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1439 states. [2018-04-11 14:49:34,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1439 states to 1439 states and 1630 transitions. [2018-04-11 14:49:34,259 INFO L78 Accepts]: Start accepts. Automaton has 1439 states and 1630 transitions. Word has length 85 [2018-04-11 14:49:34,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:49:34,259 INFO L459 AbstractCegarLoop]: Abstraction has 1439 states and 1630 transitions. [2018-04-11 14:49:34,259 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-04-11 14:49:34,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1439 states and 1630 transitions. [2018-04-11 14:49:34,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-04-11 14:49:34,260 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:49:34,260 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] [2018-04-11 14:49:34,260 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]=== [2018-04-11 14:49:34,260 INFO L82 PathProgramCache]: Analyzing trace with hash -1150942232, now seen corresponding path program 2 times [2018-04-11 14:49:34,261 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:49:34,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:49:34,268 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:49:34,853 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 2 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:34,853 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:49:34,853 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-04-11 14:49:34,854 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:49:34,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:34,854 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] [2018-04-11 14:49:34,854 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 2 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:34,854 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-04-11 14:49:34,854 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-04-11 14:49:34,854 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=637, Unknown=0, NotChecked=0, Total=756 [2018-04-11 14:49:34,854 INFO L87 Difference]: Start difference. First operand 1439 states and 1630 transitions. Second operand 28 states. [2018-04-11 14:49:36,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:49:36,096 INFO L93 Difference]: Finished difference Result 1927 states and 2161 transitions. [2018-04-11 14:49:36,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-04-11 14:49:36,096 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 85 [2018-04-11 14:49:36,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:49:36,097 INFO L225 Difference]: With dead ends: 1927 [2018-04-11 14:49:36,097 INFO L226 Difference]: Without dead ends: 1927 [2018-04-11 14:49:36,098 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 [2018-04-11 14:49:36,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1927 states. [2018-04-11 14:49:36,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1927 to 1345. [2018-04-11 14:49:36,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1345 states. [2018-04-11 14:49:36,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1345 states to 1345 states and 1518 transitions. [2018-04-11 14:49:36,108 INFO L78 Accepts]: Start accepts. Automaton has 1345 states and 1518 transitions. Word has length 85 [2018-04-11 14:49:36,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:49:36,108 INFO L459 AbstractCegarLoop]: Abstraction has 1345 states and 1518 transitions. [2018-04-11 14:49:36,108 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-04-11 14:49:36,108 INFO L276 IsEmpty]: Start isEmpty. Operand 1345 states and 1518 transitions. [2018-04-11 14:49:36,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-04-11 14:49:36,109 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:49:36,110 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] [2018-04-11 14:49:36,110 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]=== [2018-04-11 14:49:36,110 INFO L82 PathProgramCache]: Analyzing trace with hash -259659469, now seen corresponding path program 1 times [2018-04-11 14:49:36,111 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:49:36,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:49:36,119 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:49:36,498 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 14:49:36,498 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:49:36,498 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-04-11 14:49:36,498 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:49:36,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:36,499 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] [2018-04-11 14:49:36,499 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 14:49:36,499 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-04-11 14:49:36,499 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-04-11 14:49:36,499 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2018-04-11 14:49:36,499 INFO L87 Difference]: Start difference. First operand 1345 states and 1518 transitions. Second operand 22 states. [2018-04-11 14:49:37,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:49:37,813 INFO L93 Difference]: Finished difference Result 1574 states and 1779 transitions. [2018-04-11 14:49:37,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-04-11 14:49:37,813 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 86 [2018-04-11 14:49:37,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:49:37,814 INFO L225 Difference]: With dead ends: 1574 [2018-04-11 14:49:37,814 INFO L226 Difference]: Without dead ends: 1574 [2018-04-11 14:49:37,815 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 [2018-04-11 14:49:37,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1574 states. [2018-04-11 14:49:37,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1574 to 1450. [2018-04-11 14:49:37,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1450 states. [2018-04-11 14:49:37,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 1645 transitions. [2018-04-11 14:49:37,820 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 1645 transitions. Word has length 86 [2018-04-11 14:49:37,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:49:37,820 INFO L459 AbstractCegarLoop]: Abstraction has 1450 states and 1645 transitions. [2018-04-11 14:49:37,821 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-04-11 14:49:37,821 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 1645 transitions. [2018-04-11 14:49:37,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-04-11 14:49:37,821 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:49:37,821 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] [2018-04-11 14:49:37,822 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]=== [2018-04-11 14:49:37,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1292904976, now seen corresponding path program 3 times [2018-04-11 14:49:37,822 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:49:37,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:49:37,830 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:49:38,214 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:38,214 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:49:38,214 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-04-11 14:49:38,214 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:49:38,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:38,214 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|))] [2018-04-11 14:49:38,214 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:38,214 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-04-11 14:49:38,215 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-04-11 14:49:38,215 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=666, Unknown=0, NotChecked=0, Total=756 [2018-04-11 14:49:38,215 INFO L87 Difference]: Start difference. First operand 1450 states and 1645 transitions. Second operand 28 states. [2018-04-11 14:49:40,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:49:40,057 INFO L93 Difference]: Finished difference Result 1722 states and 1977 transitions. [2018-04-11 14:49:40,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2018-04-11 14:49:40,057 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 86 [2018-04-11 14:49:40,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:49:40,058 INFO L225 Difference]: With dead ends: 1722 [2018-04-11 14:49:40,058 INFO L226 Difference]: Without dead ends: 1722 [2018-04-11 14:49:40,059 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1276 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=736, Invalid=4376, Unknown=0, NotChecked=0, Total=5112 [2018-04-11 14:49:40,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2018-04-11 14:49:40,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1501. [2018-04-11 14:49:40,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1501 states. [2018-04-11 14:49:40,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1501 states to 1501 states and 1704 transitions. [2018-04-11 14:49:40,066 INFO L78 Accepts]: Start accepts. Automaton has 1501 states and 1704 transitions. Word has length 86 [2018-04-11 14:49:40,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:49:40,066 INFO L459 AbstractCegarLoop]: Abstraction has 1501 states and 1704 transitions. [2018-04-11 14:49:40,066 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-04-11 14:49:40,066 INFO L276 IsEmpty]: Start isEmpty. Operand 1501 states and 1704 transitions. [2018-04-11 14:49:40,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-04-11 14:49:40,067 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:49:40,067 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] [2018-04-11 14:49:40,067 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]=== [2018-04-11 14:49:40,067 INFO L82 PathProgramCache]: Analyzing trace with hash -1292904975, now seen corresponding path program 3 times [2018-04-11 14:49:40,068 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:49:40,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:49:40,077 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:49:40,894 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:40,894 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:49:40,894 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-04-11 14:49:40,894 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:49:40,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:40,894 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|)))] [2018-04-11 14:49:40,894 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:40,895 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-04-11 14:49:40,895 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-04-11 14:49:40,895 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2018-04-11 14:49:40,895 INFO L87 Difference]: Start difference. First operand 1501 states and 1704 transitions. Second operand 29 states. [2018-04-11 14:49:42,671 WARN L151 SmtUtils]: Spent 119ms on a formula simplification. DAG size of input: 106 DAG size of output 92 [2018-04-11 14:49:43,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:49:43,955 INFO L93 Difference]: Finished difference Result 1775 states and 2037 transitions. [2018-04-11 14:49:43,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2018-04-11 14:49:43,955 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 86 [2018-04-11 14:49:43,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:49:43,956 INFO L225 Difference]: With dead ends: 1775 [2018-04-11 14:49:43,956 INFO L226 Difference]: Without dead ends: 1775 [2018-04-11 14:49:43,957 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 [2018-04-11 14:49:43,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1775 states. [2018-04-11 14:49:43,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1775 to 1439. [2018-04-11 14:49:43,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1439 states. [2018-04-11 14:49:43,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1439 states to 1439 states and 1635 transitions. [2018-04-11 14:49:43,963 INFO L78 Accepts]: Start accepts. Automaton has 1439 states and 1635 transitions. Word has length 86 [2018-04-11 14:49:43,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:49:43,964 INFO L459 AbstractCegarLoop]: Abstraction has 1439 states and 1635 transitions. [2018-04-11 14:49:43,964 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-04-11 14:49:43,964 INFO L276 IsEmpty]: Start isEmpty. Operand 1439 states and 1635 transitions. [2018-04-11 14:49:43,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-04-11 14:49:43,965 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:49:43,965 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] [2018-04-11 14:49:43,965 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]=== [2018-04-11 14:49:43,965 INFO L82 PathProgramCache]: Analyzing trace with hash -284567439, now seen corresponding path program 2 times [2018-04-11 14:49:43,966 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:49:43,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:49:43,973 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:49:44,086 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 33 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 14:49:44,087 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:49:44,087 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2018-04-11 14:49:44,087 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:49:44,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:44,087 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))] [2018-04-11 14:49:44,087 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 33 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 14:49:44,087 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-11 14:49:44,087 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-11 14:49:44,088 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2018-04-11 14:49:44,088 INFO L87 Difference]: Start difference. First operand 1439 states and 1635 transitions. Second operand 13 states. [2018-04-11 14:49:44,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:49:44,513 INFO L93 Difference]: Finished difference Result 1828 states and 2122 transitions. [2018-04-11 14:49:44,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-04-11 14:49:44,513 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 87 [2018-04-11 14:49:44,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:49:44,514 INFO L225 Difference]: With dead ends: 1828 [2018-04-11 14:49:44,514 INFO L226 Difference]: Without dead ends: 1828 [2018-04-11 14:49:44,514 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 [2018-04-11 14:49:44,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1828 states. [2018-04-11 14:49:44,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1828 to 1638. [2018-04-11 14:49:44,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1638 states. [2018-04-11 14:49:44,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1638 states to 1638 states and 1896 transitions. [2018-04-11 14:49:44,522 INFO L78 Accepts]: Start accepts. Automaton has 1638 states and 1896 transitions. Word has length 87 [2018-04-11 14:49:44,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:49:44,522 INFO L459 AbstractCegarLoop]: Abstraction has 1638 states and 1896 transitions. [2018-04-11 14:49:44,522 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-11 14:49:44,522 INFO L276 IsEmpty]: Start isEmpty. Operand 1638 states and 1896 transitions. [2018-04-11 14:49:44,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-04-11 14:49:44,523 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:49:44,523 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] [2018-04-11 14:49:44,523 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]=== [2018-04-11 14:49:44,523 INFO L82 PathProgramCache]: Analyzing trace with hash 268478257, now seen corresponding path program 1 times [2018-04-11 14:49:44,524 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:49:44,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:49:44,530 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:49:44,739 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 14:49:44,740 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:49:44,740 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-04-11 14:49:44,740 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:49:44,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:44,740 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))] [2018-04-11 14:49:44,741 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 14:49:44,741 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-11 14:49:44,741 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-11 14:49:44,741 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2018-04-11 14:49:44,741 INFO L87 Difference]: Start difference. First operand 1638 states and 1896 transitions. Second operand 20 states. [2018-04-11 14:49:45,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:49:45,394 INFO L93 Difference]: Finished difference Result 1698 states and 1955 transitions. [2018-04-11 14:49:45,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-04-11 14:49:45,394 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 88 [2018-04-11 14:49:45,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:49:45,395 INFO L225 Difference]: With dead ends: 1698 [2018-04-11 14:49:45,396 INFO L226 Difference]: Without dead ends: 1698 [2018-04-11 14:49:45,396 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 [2018-04-11 14:49:45,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1698 states. [2018-04-11 14:49:45,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1698 to 1658. [2018-04-11 14:49:45,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1658 states. [2018-04-11 14:49:45,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1658 states to 1658 states and 1921 transitions. [2018-04-11 14:49:45,406 INFO L78 Accepts]: Start accepts. Automaton has 1658 states and 1921 transitions. Word has length 88 [2018-04-11 14:49:45,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:49:45,406 INFO L459 AbstractCegarLoop]: Abstraction has 1658 states and 1921 transitions. [2018-04-11 14:49:45,406 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-11 14:49:45,406 INFO L276 IsEmpty]: Start isEmpty. Operand 1658 states and 1921 transitions. [2018-04-11 14:49:45,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-04-11 14:49:45,407 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:49:45,407 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] [2018-04-11 14:49:45,407 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]=== [2018-04-11 14:49:45,407 INFO L82 PathProgramCache]: Analyzing trace with hash -1002309602, now seen corresponding path program 3 times [2018-04-11 14:49:45,407 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:49:45,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:49:45,418 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:49:46,228 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:46,228 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:49:46,228 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-04-11 14:49:46,229 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:49:46,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:46,229 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)))] [2018-04-11 14:49:46,229 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:46,229 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-04-11 14:49:46,229 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-04-11 14:49:46,229 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=705, Unknown=0, NotChecked=0, Total=812 [2018-04-11 14:49:46,229 INFO L87 Difference]: Start difference. First operand 1658 states and 1921 transitions. Second operand 29 states. [2018-04-11 14:49:47,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:49:47,899 INFO L93 Difference]: Finished difference Result 2101 states and 2410 transitions. [2018-04-11 14:49:47,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-04-11 14:49:47,899 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 88 [2018-04-11 14:49:47,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:49:47,900 INFO L225 Difference]: With dead ends: 2101 [2018-04-11 14:49:47,900 INFO L226 Difference]: Without dead ends: 2101 [2018-04-11 14:49:47,901 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 [2018-04-11 14:49:47,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2101 states. [2018-04-11 14:49:47,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2101 to 1723. [2018-04-11 14:49:47,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1723 states. [2018-04-11 14:49:47,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1723 states to 1723 states and 1995 transitions. [2018-04-11 14:49:47,910 INFO L78 Accepts]: Start accepts. Automaton has 1723 states and 1995 transitions. Word has length 88 [2018-04-11 14:49:47,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:49:47,910 INFO L459 AbstractCegarLoop]: Abstraction has 1723 states and 1995 transitions. [2018-04-11 14:49:47,910 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-04-11 14:49:47,910 INFO L276 IsEmpty]: Start isEmpty. Operand 1723 states and 1995 transitions. [2018-04-11 14:49:47,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-04-11 14:49:47,911 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:49:47,911 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] [2018-04-11 14:49:47,911 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]=== [2018-04-11 14:49:47,911 INFO L82 PathProgramCache]: Analyzing trace with hash -1002309601, now seen corresponding path program 2 times [2018-04-11 14:49:47,911 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:49:47,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:49:47,922 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:49:49,070 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:49,070 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:49:49,070 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2018-04-11 14:49:49,071 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:49:49,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:49,071 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))] [2018-04-11 14:49:49,071 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:49,071 INFO L442 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-04-11 14:49:49,071 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-04-11 14:49:49,072 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=854, Unknown=0, NotChecked=0, Total=992 [2018-04-11 14:49:49,072 INFO L87 Difference]: Start difference. First operand 1723 states and 1995 transitions. Second operand 32 states. [2018-04-11 14:49:52,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:49:52,028 INFO L93 Difference]: Finished difference Result 2099 states and 2427 transitions. [2018-04-11 14:49:52,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-04-11 14:49:52,028 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 88 [2018-04-11 14:49:52,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:49:52,029 INFO L225 Difference]: With dead ends: 2099 [2018-04-11 14:49:52,030 INFO L226 Difference]: Without dead ends: 2099 [2018-04-11 14:49:52,030 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 [2018-04-11 14:49:52,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2099 states. [2018-04-11 14:49:52,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2099 to 1739. [2018-04-11 14:49:52,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1739 states. [2018-04-11 14:49:52,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1739 states to 1739 states and 2015 transitions. [2018-04-11 14:49:52,064 INFO L78 Accepts]: Start accepts. Automaton has 1739 states and 2015 transitions. Word has length 88 [2018-04-11 14:49:52,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:49:52,064 INFO L459 AbstractCegarLoop]: Abstraction has 1739 states and 2015 transitions. [2018-04-11 14:49:52,064 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-04-11 14:49:52,064 INFO L276 IsEmpty]: Start isEmpty. Operand 1739 states and 2015 transitions. [2018-04-11 14:49:52,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-04-11 14:49:52,065 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:49:52,065 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] [2018-04-11 14:49:52,065 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]=== [2018-04-11 14:49:52,065 INFO L82 PathProgramCache]: Analyzing trace with hash -231656813, now seen corresponding path program 3 times [2018-04-11 14:49:52,066 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:49:52,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:49:52,071 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:49:52,379 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 14:49:52,379 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:49:52,379 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-04-11 14:49:52,380 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:49:52,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:52,380 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)|))] [2018-04-11 14:49:52,380 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 14:49:52,380 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-11 14:49:52,380 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-11 14:49:52,380 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2018-04-11 14:49:52,380 INFO L87 Difference]: Start difference. First operand 1739 states and 2015 transitions. Second operand 18 states. [2018-04-11 14:49:52,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:49:52,925 INFO L93 Difference]: Finished difference Result 1755 states and 2030 transitions. [2018-04-11 14:49:52,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-04-11 14:49:52,925 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 88 [2018-04-11 14:49:52,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:49:52,926 INFO L225 Difference]: With dead ends: 1755 [2018-04-11 14:49:52,926 INFO L226 Difference]: Without dead ends: 1697 [2018-04-11 14:49:52,926 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 [2018-04-11 14:49:52,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1697 states. [2018-04-11 14:49:52,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1697 to 1697. [2018-04-11 14:49:52,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1697 states. [2018-04-11 14:49:52,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1697 states to 1697 states and 1972 transitions. [2018-04-11 14:49:52,933 INFO L78 Accepts]: Start accepts. Automaton has 1697 states and 1972 transitions. Word has length 88 [2018-04-11 14:49:52,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:49:52,933 INFO L459 AbstractCegarLoop]: Abstraction has 1697 states and 1972 transitions. [2018-04-11 14:49:52,933 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-11 14:49:52,933 INFO L276 IsEmpty]: Start isEmpty. Operand 1697 states and 1972 transitions. [2018-04-11 14:49:52,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-04-11 14:49:52,934 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:49:52,934 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] [2018-04-11 14:49:52,934 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]=== [2018-04-11 14:49:52,934 INFO L82 PathProgramCache]: Analyzing trace with hash 1553216472, now seen corresponding path program 4 times [2018-04-11 14:49:52,935 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:49:52,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:49:52,944 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:49:54,163 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:54,163 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:49:54,163 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2018-04-11 14:49:54,163 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:49:54,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:54,164 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)))))] [2018-04-11 14:49:54,164 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:54,164 INFO L442 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-04-11 14:49:54,164 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-04-11 14:49:54,165 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=1238, Unknown=0, NotChecked=0, Total=1406 [2018-04-11 14:49:54,165 INFO L87 Difference]: Start difference. First operand 1697 states and 1972 transitions. Second operand 38 states. [2018-04-11 14:49:58,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:49:58,485 INFO L93 Difference]: Finished difference Result 2532 states and 2890 transitions. [2018-04-11 14:49:58,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2018-04-11 14:49:58,485 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 88 [2018-04-11 14:49:58,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:49:58,487 INFO L225 Difference]: With dead ends: 2532 [2018-04-11 14:49:58,487 INFO L226 Difference]: Without dead ends: 2532 [2018-04-11 14:49:58,488 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2820 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1496, Invalid=8404, Unknown=0, NotChecked=0, Total=9900 [2018-04-11 14:49:58,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2532 states. [2018-04-11 14:49:58,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2532 to 1766. [2018-04-11 14:49:58,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1766 states. [2018-04-11 14:49:58,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1766 states to 1766 states and 2051 transitions. [2018-04-11 14:49:58,497 INFO L78 Accepts]: Start accepts. Automaton has 1766 states and 2051 transitions. Word has length 88 [2018-04-11 14:49:58,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:49:58,497 INFO L459 AbstractCegarLoop]: Abstraction has 1766 states and 2051 transitions. [2018-04-11 14:49:58,497 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-04-11 14:49:58,497 INFO L276 IsEmpty]: Start isEmpty. Operand 1766 states and 2051 transitions. [2018-04-11 14:49:58,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-04-11 14:49:58,498 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:49:58,498 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] [2018-04-11 14:49:58,498 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]=== [2018-04-11 14:49:58,498 INFO L82 PathProgramCache]: Analyzing trace with hash -111364874, now seen corresponding path program 4 times [2018-04-11 14:49:58,499 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:49:58,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:49:58,505 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:49:58,977 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:58,978 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:49:58,978 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-04-11 14:49:58,978 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:49:58,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:58,978 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))] [2018-04-11 14:49:58,978 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:49:58,979 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-04-11 14:49:58,979 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-04-11 14:49:58,979 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2018-04-11 14:49:58,979 INFO L87 Difference]: Start difference. First operand 1766 states and 2051 transitions. Second operand 25 states. [2018-04-11 14:50:00,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:50:00,543 INFO L93 Difference]: Finished difference Result 2100 states and 2419 transitions. [2018-04-11 14:50:00,543 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-04-11 14:50:00,543 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 88 [2018-04-11 14:50:00,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:50:00,544 INFO L225 Difference]: With dead ends: 2100 [2018-04-11 14:50:00,544 INFO L226 Difference]: Without dead ends: 2100 [2018-04-11 14:50:00,545 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 5 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 542 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=389, Invalid=2367, Unknown=0, NotChecked=0, Total=2756 [2018-04-11 14:50:00,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2018-04-11 14:50:00,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1833. [2018-04-11 14:50:00,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1833 states. [2018-04-11 14:50:00,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1833 states to 1833 states and 2126 transitions. [2018-04-11 14:50:00,554 INFO L78 Accepts]: Start accepts. Automaton has 1833 states and 2126 transitions. Word has length 88 [2018-04-11 14:50:00,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:50:00,554 INFO L459 AbstractCegarLoop]: Abstraction has 1833 states and 2126 transitions. [2018-04-11 14:50:00,555 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-04-11 14:50:00,555 INFO L276 IsEmpty]: Start isEmpty. Operand 1833 states and 2126 transitions. [2018-04-11 14:50:00,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-04-11 14:50:00,555 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:50:00,555 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] [2018-04-11 14:50:00,555 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]=== [2018-04-11 14:50:00,556 INFO L82 PathProgramCache]: Analyzing trace with hash -111364873, now seen corresponding path program 2 times [2018-04-11 14:50:00,556 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:50:00,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:50:00,562 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:50:01,096 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:50:01,097 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:50:01,097 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-04-11 14:50:01,097 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:50:01,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:50:01,097 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|)] [2018-04-11 14:50:01,097 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:50:01,097 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-04-11 14:50:01,098 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-04-11 14:50:01,098 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=579, Unknown=0, NotChecked=0, Total=650 [2018-04-11 14:50:01,098 INFO L87 Difference]: Start difference. First operand 1833 states and 2126 transitions. Second operand 26 states. [2018-04-11 14:50:02,211 WARN L151 SmtUtils]: Spent 106ms on a formula simplification. DAG size of input: 52 DAG size of output 45 [2018-04-11 14:50:03,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:50:03,399 INFO L93 Difference]: Finished difference Result 2237 states and 2565 transitions. [2018-04-11 14:50:03,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-04-11 14:50:03,399 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 88 [2018-04-11 14:50:03,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:50:03,400 INFO L225 Difference]: With dead ends: 2237 [2018-04-11 14:50:03,401 INFO L226 Difference]: Without dead ends: 2237 [2018-04-11 14:50:03,401 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 991 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=640, Invalid=3916, Unknown=0, NotChecked=0, Total=4556 [2018-04-11 14:50:03,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2237 states. [2018-04-11 14:50:03,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2237 to 1825. [2018-04-11 14:50:03,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1825 states. [2018-04-11 14:50:03,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1825 states to 1825 states and 2114 transitions. [2018-04-11 14:50:03,409 INFO L78 Accepts]: Start accepts. Automaton has 1825 states and 2114 transitions. Word has length 88 [2018-04-11 14:50:03,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:50:03,410 INFO L459 AbstractCegarLoop]: Abstraction has 1825 states and 2114 transitions. [2018-04-11 14:50:03,410 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-04-11 14:50:03,410 INFO L276 IsEmpty]: Start isEmpty. Operand 1825 states and 2114 transitions. [2018-04-11 14:50:03,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-04-11 14:50:03,410 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:50:03,410 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] [2018-04-11 14:50:03,411 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]=== [2018-04-11 14:50:03,411 INFO L82 PathProgramCache]: Analyzing trace with hash 723285472, now seen corresponding path program 1 times [2018-04-11 14:50:03,411 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:50:03,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:50:03,421 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:50:04,433 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:50:04,433 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:50:04,433 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2018-04-11 14:50:04,434 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:50:04,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:50:04,434 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))] [2018-04-11 14:50:04,434 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:50:04,434 INFO L442 AbstractCegarLoop]: Interpolant automaton has 37 states [2018-04-11 14:50:04,434 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2018-04-11 14:50:04,435 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=1157, Unknown=0, NotChecked=0, Total=1332 [2018-04-11 14:50:04,435 INFO L87 Difference]: Start difference. First operand 1825 states and 2114 transitions. Second operand 37 states. [2018-04-11 14:50:07,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:50:07,685 INFO L93 Difference]: Finished difference Result 3010 states and 3442 transitions. [2018-04-11 14:50:07,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2018-04-11 14:50:07,685 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 88 [2018-04-11 14:50:07,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:50:07,687 INFO L225 Difference]: With dead ends: 3010 [2018-04-11 14:50:07,687 INFO L226 Difference]: Without dead ends: 3010 [2018-04-11 14:50:07,687 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2496 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1345, Invalid=7967, Unknown=0, NotChecked=0, Total=9312 [2018-04-11 14:50:07,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3010 states. [2018-04-11 14:50:07,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3010 to 2049. [2018-04-11 14:50:07,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2049 states. [2018-04-11 14:50:07,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2049 states to 2049 states and 2379 transitions. [2018-04-11 14:50:07,698 INFO L78 Accepts]: Start accepts. Automaton has 2049 states and 2379 transitions. Word has length 88 [2018-04-11 14:50:07,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:50:07,698 INFO L459 AbstractCegarLoop]: Abstraction has 2049 states and 2379 transitions. [2018-04-11 14:50:07,699 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states. [2018-04-11 14:50:07,699 INFO L276 IsEmpty]: Start isEmpty. Operand 2049 states and 2379 transitions. [2018-04-11 14:50:07,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-04-11 14:50:07,699 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:50:07,699 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] [2018-04-11 14:50:07,699 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]=== [2018-04-11 14:50:07,700 INFO L82 PathProgramCache]: Analyzing trace with hash 723285473, now seen corresponding path program 1 times [2018-04-11 14:50:07,700 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:50:07,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:50:07,712 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:50:08,560 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:50:08,560 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:50:08,560 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2018-04-11 14:50:08,560 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:50:08,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:50:08,561 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|))] [2018-04-11 14:50:08,561 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:50:08,561 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-04-11 14:50:08,561 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-04-11 14:50:08,561 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=969, Unknown=0, NotChecked=0, Total=1122 [2018-04-11 14:50:08,561 INFO L87 Difference]: Start difference. First operand 2049 states and 2379 transitions. Second operand 34 states. [2018-04-11 14:50:11,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:50:11,369 INFO L93 Difference]: Finished difference Result 2846 states and 3272 transitions. [2018-04-11 14:50:11,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2018-04-11 14:50:11,369 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 88 [2018-04-11 14:50:11,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:50:11,370 INFO L225 Difference]: With dead ends: 2846 [2018-04-11 14:50:11,371 INFO L226 Difference]: Without dead ends: 2846 [2018-04-11 14:50:11,371 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1779 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1019, Invalid=5623, Unknown=0, NotChecked=0, Total=6642 [2018-04-11 14:50:11,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2846 states. [2018-04-11 14:50:11,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2846 to 2016. [2018-04-11 14:50:11,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2016 states. [2018-04-11 14:50:11,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2016 states to 2016 states and 2345 transitions. [2018-04-11 14:50:11,381 INFO L78 Accepts]: Start accepts. Automaton has 2016 states and 2345 transitions. Word has length 88 [2018-04-11 14:50:11,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:50:11,381 INFO L459 AbstractCegarLoop]: Abstraction has 2016 states and 2345 transitions. [2018-04-11 14:50:11,381 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-04-11 14:50:11,381 INFO L276 IsEmpty]: Start isEmpty. Operand 2016 states and 2345 transitions. [2018-04-11 14:50:11,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-04-11 14:50:11,381 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:50:11,381 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] [2018-04-11 14:50:11,382 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]=== [2018-04-11 14:50:11,382 INFO L82 PathProgramCache]: Analyzing trace with hash 2103199712, now seen corresponding path program 2 times [2018-04-11 14:50:11,382 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:50:11,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:50:11,392 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:50:12,311 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:50:12,311 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:50:12,311 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2018-04-11 14:50:12,311 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:50:12,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:50:12,312 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|))] [2018-04-11 14:50:12,312 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:50:12,312 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-04-11 14:50:12,312 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-04-11 14:50:12,312 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=961, Unknown=0, NotChecked=0, Total=1122 [2018-04-11 14:50:12,312 INFO L87 Difference]: Start difference. First operand 2016 states and 2345 transitions. Second operand 34 states. [2018-04-11 14:50:14,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:50:14,937 INFO L93 Difference]: Finished difference Result 2842 states and 3275 transitions. [2018-04-11 14:50:14,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-04-11 14:50:14,937 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 88 [2018-04-11 14:50:14,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:50:14,938 INFO L225 Difference]: With dead ends: 2842 [2018-04-11 14:50:14,939 INFO L226 Difference]: Without dead ends: 2842 [2018-04-11 14:50:14,939 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1710 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=995, Invalid=5485, Unknown=0, NotChecked=0, Total=6480 [2018-04-11 14:50:14,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2842 states. [2018-04-11 14:50:14,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2842 to 1956. [2018-04-11 14:50:14,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1956 states. [2018-04-11 14:50:14,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1956 states to 1956 states and 2276 transitions. [2018-04-11 14:50:14,948 INFO L78 Accepts]: Start accepts. Automaton has 1956 states and 2276 transitions. Word has length 88 [2018-04-11 14:50:14,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:50:14,948 INFO L459 AbstractCegarLoop]: Abstraction has 1956 states and 2276 transitions. [2018-04-11 14:50:14,948 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-04-11 14:50:14,948 INFO L276 IsEmpty]: Start isEmpty. Operand 1956 states and 2276 transitions. [2018-04-11 14:50:14,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-04-11 14:50:14,949 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:50:14,949 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] [2018-04-11 14:50:14,949 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]=== [2018-04-11 14:50:14,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1464765239, now seen corresponding path program 1 times [2018-04-11 14:50:14,950 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:50:14,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:50:14,956 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:50:15,432 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 14:50:15,432 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:50:15,432 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-04-11 14:50:15,432 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:50:15,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:50:15,433 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)))] [2018-04-11 14:50:15,433 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 14:50:15,433 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-04-11 14:50:15,433 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-04-11 14:50:15,433 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=508, Unknown=0, NotChecked=0, Total=600 [2018-04-11 14:50:15,433 INFO L87 Difference]: Start difference. First operand 1956 states and 2276 transitions. Second operand 25 states. [2018-04-11 14:50:16,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:50:16,684 INFO L93 Difference]: Finished difference Result 2257 states and 2621 transitions. [2018-04-11 14:50:16,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-04-11 14:50:16,684 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 89 [2018-04-11 14:50:16,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:50:16,685 INFO L225 Difference]: With dead ends: 2257 [2018-04-11 14:50:16,685 INFO L226 Difference]: Without dead ends: 2257 [2018-04-11 14:50:16,685 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 [2018-04-11 14:50:16,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2257 states. [2018-04-11 14:50:16,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2257 to 1950. [2018-04-11 14:50:16,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1950 states. [2018-04-11 14:50:16,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1950 states to 1950 states and 2269 transitions. [2018-04-11 14:50:16,696 INFO L78 Accepts]: Start accepts. Automaton has 1950 states and 2269 transitions. Word has length 89 [2018-04-11 14:50:16,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:50:16,696 INFO L459 AbstractCegarLoop]: Abstraction has 1950 states and 2269 transitions. [2018-04-11 14:50:16,696 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-04-11 14:50:16,696 INFO L276 IsEmpty]: Start isEmpty. Operand 1950 states and 2269 transitions. [2018-04-11 14:50:16,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-04-11 14:50:16,697 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:50:16,697 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] [2018-04-11 14:50:16,697 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]=== [2018-04-11 14:50:16,697 INFO L82 PathProgramCache]: Analyzing trace with hash -267119360, now seen corresponding path program 1 times [2018-04-11 14:50:16,698 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:50:16,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:50:16,704 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:50:17,143 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:50:17,143 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:50:17,143 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-04-11 14:50:17,144 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:50:17,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:50:17,144 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))] [2018-04-11 14:50:17,144 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:50:17,144 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-04-11 14:50:17,144 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-04-11 14:50:17,144 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2018-04-11 14:50:17,145 INFO L87 Difference]: Start difference. First operand 1950 states and 2269 transitions. Second operand 23 states. [2018-04-11 14:50:18,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:50:18,826 INFO L93 Difference]: Finished difference Result 2146 states and 2474 transitions. [2018-04-11 14:50:18,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2018-04-11 14:50:18,826 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 89 [2018-04-11 14:50:18,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:50:18,828 INFO L225 Difference]: With dead ends: 2146 [2018-04-11 14:50:18,828 INFO L226 Difference]: Without dead ends: 2146 [2018-04-11 14:50:18,828 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1315 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=803, Invalid=4167, Unknown=0, NotChecked=0, Total=4970 [2018-04-11 14:50:18,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2146 states. [2018-04-11 14:50:18,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2146 to 1950. [2018-04-11 14:50:18,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1950 states. [2018-04-11 14:50:18,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1950 states to 1950 states and 2268 transitions. [2018-04-11 14:50:18,837 INFO L78 Accepts]: Start accepts. Automaton has 1950 states and 2268 transitions. Word has length 89 [2018-04-11 14:50:18,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:50:18,837 INFO L459 AbstractCegarLoop]: Abstraction has 1950 states and 2268 transitions. [2018-04-11 14:50:18,837 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-04-11 14:50:18,837 INFO L276 IsEmpty]: Start isEmpty. Operand 1950 states and 2268 transitions. [2018-04-11 14:50:18,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-04-11 14:50:18,838 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:50:18,838 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] [2018-04-11 14:50:18,838 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]=== [2018-04-11 14:50:18,838 INFO L82 PathProgramCache]: Analyzing trace with hash 309234673, now seen corresponding path program 1 times [2018-04-11 14:50:18,838 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:50:18,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:50:18,844 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:50:19,325 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:50:19,326 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:50:19,326 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-04-11 14:50:19,326 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:50:19,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:50:19,326 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))] [2018-04-11 14:50:19,326 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:50:19,326 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-04-11 14:50:19,327 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-04-11 14:50:19,327 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=520, Unknown=0, NotChecked=0, Total=600 [2018-04-11 14:50:19,327 INFO L87 Difference]: Start difference. First operand 1950 states and 2268 transitions. Second operand 25 states. [2018-04-11 14:50:20,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:50:20,894 INFO L93 Difference]: Finished difference Result 1994 states and 2312 transitions. [2018-04-11 14:50:20,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-04-11 14:50:20,894 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 90 [2018-04-11 14:50:20,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:50:20,895 INFO L225 Difference]: With dead ends: 1994 [2018-04-11 14:50:20,895 INFO L226 Difference]: Without dead ends: 1994 [2018-04-11 14:50:20,895 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 [2018-04-11 14:50:20,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1994 states. [2018-04-11 14:50:20,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1994 to 1956. [2018-04-11 14:50:20,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1956 states. [2018-04-11 14:50:20,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1956 states to 1956 states and 2275 transitions. [2018-04-11 14:50:20,907 INFO L78 Accepts]: Start accepts. Automaton has 1956 states and 2275 transitions. Word has length 90 [2018-04-11 14:50:20,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:50:20,907 INFO L459 AbstractCegarLoop]: Abstraction has 1956 states and 2275 transitions. [2018-04-11 14:50:20,907 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-04-11 14:50:20,907 INFO L276 IsEmpty]: Start isEmpty. Operand 1956 states and 2275 transitions. [2018-04-11 14:50:20,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-04-11 14:50:20,908 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:50:20,908 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] [2018-04-11 14:50:20,908 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]=== [2018-04-11 14:50:20,908 INFO L82 PathProgramCache]: Analyzing trace with hash -1736396767, now seen corresponding path program 1 times [2018-04-11 14:50:20,909 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:50:20,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:50:20,917 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:50:21,483 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 14:50:21,484 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:50:21,484 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-04-11 14:50:21,484 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:50:21,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:50:21,484 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))] [2018-04-11 14:50:21,484 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 14:50:21,484 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-04-11 14:50:21,485 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-04-11 14:50:21,485 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=626, Unknown=0, NotChecked=0, Total=756 [2018-04-11 14:50:21,485 INFO L87 Difference]: Start difference. First operand 1956 states and 2275 transitions. Second operand 28 states. [2018-04-11 14:50:23,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:50:23,178 INFO L93 Difference]: Finished difference Result 2641 states and 3044 transitions. [2018-04-11 14:50:23,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-04-11 14:50:23,178 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 91 [2018-04-11 14:50:23,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:50:23,180 INFO L225 Difference]: With dead ends: 2641 [2018-04-11 14:50:23,180 INFO L226 Difference]: Without dead ends: 2641 [2018-04-11 14:50:23,181 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1119 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1021, Invalid=3809, Unknown=0, NotChecked=0, Total=4830 [2018-04-11 14:50:23,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2641 states. [2018-04-11 14:50:23,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2641 to 2090. [2018-04-11 14:50:23,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2090 states. [2018-04-11 14:50:23,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2090 states to 2090 states and 2433 transitions. [2018-04-11 14:50:23,192 INFO L78 Accepts]: Start accepts. Automaton has 2090 states and 2433 transitions. Word has length 91 [2018-04-11 14:50:23,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:50:23,193 INFO L459 AbstractCegarLoop]: Abstraction has 2090 states and 2433 transitions. [2018-04-11 14:50:23,193 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-04-11 14:50:23,193 INFO L276 IsEmpty]: Start isEmpty. Operand 2090 states and 2433 transitions. [2018-04-11 14:50:23,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-04-11 14:50:23,193 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:50:23,194 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] [2018-04-11 14:50:23,194 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]=== [2018-04-11 14:50:23,194 INFO L82 PathProgramCache]: Analyzing trace with hash 1906597866, now seen corresponding path program 5 times [2018-04-11 14:50:23,194 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:50:23,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:50:23,218 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:50:24,642 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:50:24,642 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:50:24,642 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2018-04-11 14:50:24,642 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:50:24,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:50:24,642 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|))] [2018-04-11 14:50:24,643 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:50:24,643 INFO L442 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-04-11 14:50:24,643 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-04-11 14:50:24,643 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=1048, Unknown=0, NotChecked=0, Total=1190 [2018-04-11 14:50:24,643 INFO L87 Difference]: Start difference. First operand 2090 states and 2433 transitions. Second operand 35 states. [2018-04-11 14:50:27,251 WARN L151 SmtUtils]: Spent 133ms on a formula simplification. DAG size of input: 97 DAG size of output 87 [2018-04-11 14:50:27,434 WARN L151 SmtUtils]: Spent 118ms on a formula simplification. DAG size of input: 93 DAG size of output 85 [2018-04-11 14:50:27,757 WARN L151 SmtUtils]: Spent 119ms on a formula simplification. DAG size of input: 97 DAG size of output 86 [2018-04-11 14:50:28,204 WARN L151 SmtUtils]: Spent 149ms on a formula simplification. DAG size of input: 111 DAG size of output 97 [2018-04-11 14:50:28,352 WARN L151 SmtUtils]: Spent 126ms on a formula simplification. DAG size of input: 87 DAG size of output 77 [2018-04-11 14:50:29,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:50:29,097 INFO L93 Difference]: Finished difference Result 2756 states and 3201 transitions. [2018-04-11 14:50:29,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2018-04-11 14:50:29,097 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 91 [2018-04-11 14:50:29,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:50:29,099 INFO L225 Difference]: With dead ends: 2756 [2018-04-11 14:50:29,099 INFO L226 Difference]: Without dead ends: 2756 [2018-04-11 14:50:29,099 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2413 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1146, Invalid=7410, Unknown=0, NotChecked=0, Total=8556 [2018-04-11 14:50:29,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2756 states. [2018-04-11 14:50:29,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2756 to 2081. [2018-04-11 14:50:29,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2081 states. [2018-04-11 14:50:29,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2081 states to 2081 states and 2418 transitions. [2018-04-11 14:50:29,109 INFO L78 Accepts]: Start accepts. Automaton has 2081 states and 2418 transitions. Word has length 91 [2018-04-11 14:50:29,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:50:29,109 INFO L459 AbstractCegarLoop]: Abstraction has 2081 states and 2418 transitions. [2018-04-11 14:50:29,109 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-04-11 14:50:29,109 INFO L276 IsEmpty]: Start isEmpty. Operand 2081 states and 2418 transitions. [2018-04-11 14:50:29,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-04-11 14:50:29,110 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:50:29,110 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] [2018-04-11 14:50:29,110 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]=== [2018-04-11 14:50:29,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1906597867, now seen corresponding path program 3 times [2018-04-11 14:50:29,111 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:50:29,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:50:29,128 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:50:30,343 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:50:30,344 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:50:30,344 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2018-04-11 14:50:30,344 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:50:30,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:50:30,344 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))] [2018-04-11 14:50:30,345 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:50:30,345 INFO L442 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-04-11 14:50:30,345 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-04-11 14:50:30,345 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=912, Unknown=0, NotChecked=0, Total=1056 [2018-04-11 14:50:30,345 INFO L87 Difference]: Start difference. First operand 2081 states and 2418 transitions. Second operand 33 states. [2018-04-11 14:50:32,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:50:32,799 INFO L93 Difference]: Finished difference Result 2802 states and 3253 transitions. [2018-04-11 14:50:32,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-04-11 14:50:32,799 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 91 [2018-04-11 14:50:32,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:50:32,800 INFO L225 Difference]: With dead ends: 2802 [2018-04-11 14:50:32,800 INFO L226 Difference]: Without dead ends: 2802 [2018-04-11 14:50:32,801 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 [2018-04-11 14:50:32,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2802 states. [2018-04-11 14:50:32,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2802 to 2262. [2018-04-11 14:50:32,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2262 states. [2018-04-11 14:50:32,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2262 states to 2262 states and 2640 transitions. [2018-04-11 14:50:32,812 INFO L78 Accepts]: Start accepts. Automaton has 2262 states and 2640 transitions. Word has length 91 [2018-04-11 14:50:32,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:50:32,812 INFO L459 AbstractCegarLoop]: Abstraction has 2262 states and 2640 transitions. [2018-04-11 14:50:32,812 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-04-11 14:50:32,812 INFO L276 IsEmpty]: Start isEmpty. Operand 2262 states and 2640 transitions. [2018-04-11 14:50:32,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-04-11 14:50:32,813 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:50:32,813 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] [2018-04-11 14:50:32,813 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]=== [2018-04-11 14:50:32,813 INFO L82 PathProgramCache]: Analyzing trace with hash 242016520, now seen corresponding path program 6 times [2018-04-11 14:50:32,813 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:50:32,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:50:32,820 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:50:33,617 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 17 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:50:33,618 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:50:33,618 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2018-04-11 14:50:33,618 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:50:33,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:50:33,618 INFO L182 omatonBuilderFactory]: Interpolants [255235#(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) (< 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))), 255234#(and (or (= 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.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)), 255233#(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))), 255232#(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)), 255239#(and (= 2 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= 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 (+ 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 |#valid| main_~x~0.base) 1)), 255238#(and (= 2 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= 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 (+ 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 |#valid| main_~x~0.base) 1)), 255237#(and (= 2 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= 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))), 255236#(and (= 2 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= 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))), 255243#(and (= 2 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (+ main_~head~0.offset 8))) (or (= main_~head~0.offset |main_#t~mem7.offset|) (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|)) (= main_~head~0.offset 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 255242#(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)))) (= 2 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= 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)) (<= 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))), 255241#(and (= 2 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (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)) (< 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) (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))), 255240#(and (= 2 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= 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 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)), 255247#(or (and (= 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))) (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)))), 255246#(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 (= 2 (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)))), 255245#(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 (= 2 (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)))), 255244#(or (and (= 2 (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_~x~0.base main_~head~0.base))), 255251#(or (= 2 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (<= (+ main_~x~0.offset 1) 0)), 255250#(or (= 2 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (<= (+ main_~x~0.offset 1) 0) (and (= 0 main_~x~0.base) (= 0 main_~x~0.offset))), 255249#(or (and (= 0 |main_#t~mem20.offset|) (= 2 (select (select |#memory_int| |main_#t~mem20.base|) (+ 0 8)))) (and (= 0 |main_#t~mem20.offset|) (= 0 |main_#t~mem20.base|))), 255248#(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 (= 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)))), 255254#(<= (+ main_~x~0.offset 1) 0), 255253#(or |main_#t~short14| (<= (+ main_~x~0.offset 1) 0)), 255252#(or (<= (+ main_~x~0.offset 1) 0) (and (= 2 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))) (= |main_#t~mem12| (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 8))))), 255227#(= |main_#t~malloc0.offset| 0), 255226#false, 255225#true, 255231#(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)), 255230#(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)), 255229#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 255228#(= main_~head~0.offset 0)] [2018-04-11 14:50:33,618 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 17 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:50:33,618 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-04-11 14:50:33,619 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-04-11 14:50:33,619 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=743, Unknown=0, NotChecked=0, Total=870 [2018-04-11 14:50:33,619 INFO L87 Difference]: Start difference. First operand 2262 states and 2640 transitions. Second operand 30 states. Received shutdown request... [2018-04-11 14:50:34,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-11 14:50:34,035 WARN L519 AbstractCegarLoop]: Verification canceled [2018-04-11 14:50:34,039 WARN L197 ceAbstractionStarter]: Timeout [2018-04-11 14:50:34,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.04 02:50:34 BoogieIcfgContainer [2018-04-11 14:50:34,039 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-11 14:50:34,040 INFO L168 Benchmark]: Toolchain (without parser) took 174929.87 ms. Allocated memory was 403.7 MB in the beginning and 1.6 GB in the end (delta: 1.2 GB). Free memory was 336.0 MB in the beginning and 1.1 GB in the end (delta: -779.4 MB). Peak memory consumption was 435.4 MB. Max. memory is 5.3 GB. [2018-04-11 14:50:34,040 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 403.7 MB. Free memory is still 362.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 14:50:34,041 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.02 ms. Allocated memory is still 403.7 MB. Free memory was 336.0 MB in the beginning and 309.0 MB in the end (delta: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 5.3 GB. [2018-04-11 14:50:34,041 INFO L168 Benchmark]: Boogie Preprocessor took 45.04 ms. Allocated memory is still 403.7 MB. Free memory was 309.0 MB in the beginning and 303.7 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 5.3 GB. [2018-04-11 14:50:34,041 INFO L168 Benchmark]: RCFGBuilder took 536.78 ms. Allocated memory was 403.7 MB in the beginning and 591.4 MB in the end (delta: 187.7 MB). Free memory was 303.7 MB in the beginning and 509.8 MB in the end (delta: -206.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 5.3 GB. [2018-04-11 14:50:34,041 INFO L168 Benchmark]: TraceAbstraction took 174060.02 ms. Allocated memory was 591.4 MB in the beginning and 1.6 GB in the end (delta: 1.0 GB). Free memory was 507.6 MB in the beginning and 1.1 GB in the end (delta: -607.7 MB). Peak memory consumption was 419.4 MB. Max. memory is 5.3 GB. [2018-04-11 14:50:34,042 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 403.7 MB. Free memory is still 362.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 285.02 ms. Allocated memory is still 403.7 MB. Free memory was 336.0 MB in the beginning and 309.0 MB in the end (delta: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 45.04 ms. Allocated memory is still 403.7 MB. Free memory was 309.0 MB in the beginning and 303.7 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 536.78 ms. Allocated memory was 403.7 MB in the beginning and 591.4 MB in the end (delta: 187.7 MB). Free memory was 303.7 MB in the beginning and 509.8 MB in the end (delta: -206.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 174060.02 ms. Allocated memory was 591.4 MB in the beginning and 1.6 GB in the end (delta: 1.0 GB). Free memory was 507.6 MB in the beginning and 1.1 GB in the end (delta: -607.7 MB). Peak memory consumption was 419.4 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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 constructing difference of abstraction (2262states) and interpolant automaton (currently 14 states, 30 states before enhancement), 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, 174.0s OverallTime, 118 OverallIterations, 4 TraceHistogramMax, 129.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 11695 SDtfs, 74915 SDslu, 109526 SDs, 0 SdLazy, 144139 SolverSat, 13233 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 54.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5199 GetRequests, 298 SyntacticMatches, 231 SemanticMatches, 4669 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61727 ImplicationChecksByTransitivity, 96.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2262occurred in iteration=117, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 173/2630 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 117 MinimizatonAttempts, 27136 StatesRemovedByMinimization, 115 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 41.1s InterpolantComputationTime, 7710 NumberOfCodeBlocks, 7710 NumberOfCodeBlocksAsserted, 118 NumberOfCheckSat, 7592 ConstructedInterpolants, 0 QuantifiedInterpolants, 11624658 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 118 InterpolantComputations, 21 PerfectInterpolantSequences, 173/2630 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-0-2018-04-11_14-50-34-047.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-0-2018-04-11_14-50-34-047.csv Completed graceful shutdown