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-reverse_simple_true-unreach-call_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-11 14:53:34,412 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-11 14:53:34,413 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-11 14:53:34,425 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-11 14:53:34,425 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-11 14:53:34,425 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-11 14:53:34,426 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-11 14:53:34,428 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-11 14:53:34,429 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-11 14:53:34,429 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-11 14:53:34,430 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-11 14:53:34,430 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-11 14:53:34,431 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-11 14:53:34,432 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-11 14:53:34,433 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-11 14:53:34,434 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-11 14:53:34,436 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-11 14:53:34,437 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-11 14:53:34,438 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-11 14:53:34,439 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-11 14:53:34,440 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-04-11 14:53:34,444 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-11 14:53:34,445 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-11 14:53:34,445 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 14:53:34,464 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-11 14:53:34,465 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-11 14:53:34,465 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-11 14:53:34,466 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-11 14:53:34,466 INFO L133 SettingsManager]: * Use SBE=true [2018-04-11 14:53:34,466 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-11 14:53:34,466 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-11 14:53:34,466 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-11 14:53:34,466 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-11 14:53:34,466 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-11 14:53:34,466 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-11 14:53:34,466 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-11 14:53:34,467 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-11 14:53:34,467 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-11 14:53:34,467 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-11 14:53:34,467 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-11 14:53:34,467 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-11 14:53:34,467 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-11 14:53:34,467 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-11 14:53:34,467 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 14:53:34,467 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-11 14:53:34,468 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 14:53:34,494 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-11 14:53:34,501 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-11 14:53:34,503 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-11 14:53:34,504 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-11 14:53:34,505 INFO L276 PluginConnector]: CDTParser initialized [2018-04-11 14:53:34,505 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,811 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG1bb9f810a [2018-04-11 14:53:34,977 INFO L287 CDTParser]: IsIndexed: true [2018-04-11 14:53:34,977 INFO L288 CDTParser]: Found 1 translation units. [2018-04-11 14:53:34,978 INFO L168 CDTParser]: Scanning sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,985 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-11 14:53:34,985 INFO L215 ultiparseSymbolTable]: [2018-04-11 14:53:34,985 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-11 14:53:34,986 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,986 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-11 14:53:34,986 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____uint8_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,986 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____key_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,986 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__SLL in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,986 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____clockid_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,986 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__clockid_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,986 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__pthread_spinlock_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,986 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____u_int in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,986 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____daddr_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,987 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____blkcnt_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,987 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__int64_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,987 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__pthread_cond_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,987 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__fsid_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,987 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__id_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,987 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__quad_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,987 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____fd_mask in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,987 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____loff_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,987 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__u_int8_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,987 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__dev_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,987 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__u_int16_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,987 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__pthread_condattr_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,987 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__pthread_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,987 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____clock_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,987 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____u_quad_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,987 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__pthread_barrier_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,987 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__pthread_attr_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____gid_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____pid_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____syscall_slong_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____fsblkcnt64_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__loff_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____quad_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__wchar_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____useconds_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__ushort in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____int64_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____nlink_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__timer_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__register_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__sigset_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__pthread_barrierattr_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,989 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__u_int32_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,989 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____sig_atomic_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,989 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____uid_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,989 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____ino64_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,989 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__idtype_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,989 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__key_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,989 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____ssize_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,989 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__uint in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,989 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__int32_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,989 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__nlink_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,990 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____blkcnt64_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,990 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____off_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,990 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__pthread_rwlockattr_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,990 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____uint64_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,990 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__ssize_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,990 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__fd_mask in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,990 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__fsfilcnt_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,990 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____fsword_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,990 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____suseconds_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,990 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__div_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,991 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__fsblkcnt_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,991 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__time_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,991 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____pthread_slist_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,991 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____rlim64_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,991 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__mode_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,991 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__caddr_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,991 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__uid_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,991 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__u_int in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,991 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____uint32_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,991 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__pthread_rwlock_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,991 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__size_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____int32_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____id_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____syscall_ulong_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____off64_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____u_char in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____timer_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____blksize_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____time_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__int8_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__pthread_key_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____qaddr_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__int16_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__lldiv_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____fsfilcnt_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__pthread_mutexattr_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____fsblkcnt_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____socklen_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__ino_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____rlim_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__pthread_mutex_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__u_int64_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____fsfilcnt64_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__ldiv_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__u_quad_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____u_long in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____int16_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__u_char in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__off_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__u_short in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____int8_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__daddr_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____uint16_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__blkcnt_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__pthread_once_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____intptr_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____caddr_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__u_long in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__blksize_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____mode_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__suseconds_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____dev_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____ino_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__pid_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__clock_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____sigset_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__fd_set in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____u_short in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i____fsid_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__ulong in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:34,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsll_reverse_simple_true_unreach_call_true_valid_memsafety_i__gid_t in sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:35,025 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG1bb9f810a [2018-04-11 14:53:35,029 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-11 14:53:35,030 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-11 14:53:35,031 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-11 14:53:35,031 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-11 14:53:35,035 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-11 14:53:35,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 02:53:35" (1/1) ... [2018-04-11 14:53:35,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57ee4ab6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 02:53:35, skipping insertion in model container [2018-04-11 14:53:35,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 02:53:35" (1/1) ... [2018-04-11 14:53:35,047 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 14:53:35,066 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 14:53:35,191 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 14:53:35,232 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 14:53:35,237 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 115 non ball SCCs. Number of states in SCCs 115. [2018-04-11 14:53:35,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 02:53:35 WrapperNode [2018-04-11 14:53:35,270 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-11 14:53:35,270 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-11 14:53:35,270 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-11 14:53:35,270 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-11 14:53:35,278 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 02:53:35" (1/1) ... [2018-04-11 14:53:35,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 02:53:35" (1/1) ... [2018-04-11 14:53:35,290 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 02:53:35" (1/1) ... [2018-04-11 14:53:35,290 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 02:53:35" (1/1) ... [2018-04-11 14:53:35,300 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 02:53:35" (1/1) ... [2018-04-11 14:53:35,306 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 02:53:35" (1/1) ... [2018-04-11 14:53:35,308 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 02:53:35" (1/1) ... [2018-04-11 14:53:35,312 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-11 14:53:35,312 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-11 14:53:35,312 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-11 14:53:35,313 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-11 14:53:35,313 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 02:53:35" (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 14:53:35,394 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-11 14:53:35,394 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-11 14:53:35,394 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-11 14:53:35,394 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-11 14:53:35,394 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-11 14:53:35,394 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-11 14:53:35,394 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-11 14:53:35,394 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-11 14:53:35,394 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-11 14:53:35,394 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-11 14:53:35,395 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-11 14:53:35,395 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-11 14:53:35,395 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-11 14:53:35,395 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-11 14:53:35,395 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-11 14:53:35,395 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-11 14:53:35,395 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-11 14:53:35,395 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-11 14:53:35,395 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-11 14:53:35,395 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-11 14:53:35,396 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-11 14:53:35,396 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-11 14:53:35,396 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-11 14:53:35,396 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-11 14:53:35,396 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-11 14:53:35,396 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-11 14:53:35,396 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-11 14:53:35,396 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-11 14:53:35,397 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-11 14:53:35,397 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-11 14:53:35,397 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-11 14:53:35,397 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-11 14:53:35,397 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-11 14:53:35,397 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-11 14:53:35,397 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-11 14:53:35,397 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-11 14:53:35,397 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-11 14:53:35,398 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-11 14:53:35,398 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-11 14:53:35,398 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-11 14:53:35,398 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-11 14:53:35,398 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-11 14:53:35,398 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-11 14:53:35,398 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-11 14:53:35,398 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-11 14:53:35,398 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-11 14:53:35,398 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-11 14:53:35,399 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-11 14:53:35,399 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-11 14:53:35,399 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-11 14:53:35,399 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-11 14:53:35,399 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-11 14:53:35,399 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-11 14:53:35,399 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-11 14:53:35,399 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-11 14:53:35,399 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-11 14:53:35,400 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-11 14:53:35,400 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-11 14:53:35,400 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-11 14:53:35,400 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-11 14:53:35,400 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-11 14:53:35,400 INFO L128 BoogieDeclarations]: Found specification of procedure aligned_alloc [2018-04-11 14:53:35,400 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-11 14:53:35,400 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-11 14:53:35,400 INFO L128 BoogieDeclarations]: Found specification of procedure at_quick_exit [2018-04-11 14:53:35,400 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-11 14:53:35,400 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-11 14:53:35,400 INFO L128 BoogieDeclarations]: Found specification of procedure quick_exit [2018-04-11 14:53:35,400 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-11 14:53:35,400 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-11 14:53:35,401 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-11 14:53:35,401 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-11 14:53:35,401 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-11 14:53:35,401 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-11 14:53:35,401 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-11 14:53:35,401 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-11 14:53:35,401 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-11 14:53:35,401 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-11 14:53:35,401 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-11 14:53:35,401 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-11 14:53:35,401 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-11 14:53:35,401 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-11 14:53:35,401 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-11 14:53:35,401 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-11 14:53:35,402 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-11 14:53:35,402 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-11 14:53:35,402 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-11 14:53:35,402 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-11 14:53:35,402 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-11 14:53:35,402 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-11 14:53:35,402 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-11 14:53:35,402 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-11 14:53:35,402 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-11 14:53:35,402 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-11 14:53:35,402 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-11 14:53:35,402 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-11 14:53:35,402 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-11 14:53:35,402 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-11 14:53:35,402 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-11 14:53:35,403 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-11 14:53:35,403 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-11 14:53:35,403 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-11 14:53:35,403 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-11 14:53:35,403 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-11 14:53:35,403 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-11 14:53:35,403 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-11 14:53:35,403 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-11 14:53:35,403 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-04-11 14:53:35,403 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-11 14:53:35,404 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-11 14:53:35,404 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-04-11 14:53:35,404 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-11 14:53:35,404 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-04-11 14:53:35,404 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-11 14:53:35,404 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-11 14:53:35,404 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-11 14:53:35,404 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-11 14:53:35,404 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-11 14:53:35,817 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-11 14:53:35,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 02:53:35 BoogieIcfgContainer [2018-04-11 14:53:35,818 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-11 14:53:35,818 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-11 14:53:35,818 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-11 14:53:35,820 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-11 14:53:35,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.04 02:53:35" (1/3) ... [2018-04-11 14:53:35,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@557e1872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 02:53:35, skipping insertion in model container [2018-04-11 14:53:35,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 02:53:35" (2/3) ... [2018-04-11 14:53:35,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@557e1872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 02:53:35, skipping insertion in model container [2018-04-11 14:53:35,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 02:53:35" (3/3) ... [2018-04-11 14:53:35,822 INFO L107 eAbstractionObserver]: Analyzing ICFG sll-reverse_simple_true-unreach-call_true-valid-memsafety.i [2018-04-11 14:53:35,828 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-04-11 14:53:35,834 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 53 error locations. [2018-04-11 14:53:35,868 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-11 14:53:35,869 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-11 14:53:35,869 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-11 14:53:35,869 INFO L371 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-04-11 14:53:35,869 INFO L372 AbstractCegarLoop]: Backedges is CANONICAL [2018-04-11 14:53:35,869 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-11 14:53:35,869 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-11 14:53:35,869 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-11 14:53:35,869 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-11 14:53:35,870 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-11 14:53:35,880 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states. [2018-04-11 14:53:35,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-04-11 14:53:35,886 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:53:35,886 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 14:53:35,886 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:53:35,889 INFO L82 PathProgramCache]: Analyzing trace with hash 2115138312, now seen corresponding path program 1 times [2018-04-11 14:53:35,925 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:53:35,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:53:35,954 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:53:36,013 INFO 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 14:53:36,015 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 14:53:36,016 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 14:53:36,016 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:53:36,017 INFO 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 14:53:36,017 INFO L182 omatonBuilderFactory]: Interpolants [139#true, 140#false, 141#(= 1 (select |#valid| |main_#t~malloc0.base|)), 142#(= 1 (select |#valid| main_~head~0.base))] [2018-04-11 14:53:36,017 INFO 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 14:53:36,018 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 14:53:36,027 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 14:53:36,028 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 14:53:36,030 INFO L87 Difference]: Start difference. First operand 136 states. Second operand 4 states. [2018-04-11 14:53:36,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:53:36,166 INFO L93 Difference]: Finished difference Result 149 states and 158 transitions. [2018-04-11 14:53:36,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-11 14:53:36,167 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-04-11 14:53:36,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:53:36,173 INFO L225 Difference]: With dead ends: 149 [2018-04-11 14:53:36,173 INFO L226 Difference]: Without dead ends: 145 [2018-04-11 14:53:36,174 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 14:53:36,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2018-04-11 14:53:36,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 131. [2018-04-11 14:53:36,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2018-04-11 14:53:36,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 139 transitions. [2018-04-11 14:53:36,202 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 139 transitions. Word has length 8 [2018-04-11 14:53:36,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:53:36,202 INFO L459 AbstractCegarLoop]: Abstraction has 131 states and 139 transitions. [2018-04-11 14:53:36,202 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 14:53:36,202 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 139 transitions. [2018-04-11 14:53:36,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-04-11 14:53:36,203 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:53:36,203 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 14:53:36,203 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:53:36,203 INFO L82 PathProgramCache]: Analyzing trace with hash 2115138313, now seen corresponding path program 1 times [2018-04-11 14:53:36,205 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:53:36,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:53:36,217 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:53:36,263 INFO 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 14:53:36,263 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 14:53:36,263 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 14:53:36,263 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:53:36,263 INFO 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 14:53:36,263 INFO L182 omatonBuilderFactory]: Interpolants [425#true, 426#false, 427#(and (= 8 (select |#length| |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|)), 428#(and (= 8 (select |#length| main_~head~0.base)) (= main_~head~0.offset 0))] [2018-04-11 14:53:36,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:53:36,264 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 14:53:36,265 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 14:53:36,265 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 14:53:36,265 INFO L87 Difference]: Start difference. First operand 131 states and 139 transitions. Second operand 4 states. [2018-04-11 14:53:36,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:53:36,380 INFO L93 Difference]: Finished difference Result 129 states and 137 transitions. [2018-04-11 14:53:36,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-11 14:53:36,380 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-04-11 14:53:36,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:53:36,382 INFO L225 Difference]: With dead ends: 129 [2018-04-11 14:53:36,382 INFO L226 Difference]: Without dead ends: 129 [2018-04-11 14:53:36,382 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 14:53:36,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-04-11 14:53:36,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2018-04-11 14:53:36,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2018-04-11 14:53:36,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 137 transitions. [2018-04-11 14:53:36,389 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 137 transitions. Word has length 8 [2018-04-11 14:53:36,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:53:36,389 INFO L459 AbstractCegarLoop]: Abstraction has 129 states and 137 transitions. [2018-04-11 14:53:36,390 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 14:53:36,390 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 137 transitions. [2018-04-11 14:53:36,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-04-11 14:53:36,390 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:53:36,390 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 14:53:36,390 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:53:36,391 INFO L82 PathProgramCache]: Analyzing trace with hash 1814518955, now seen corresponding path program 1 times [2018-04-11 14:53:36,392 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:53:36,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:53:36,408 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:53:36,445 INFO 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 14:53:36,445 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 14:53:36,445 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 14:53:36,445 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:53:36,445 INFO 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 14:53:36,446 INFO L182 omatonBuilderFactory]: Interpolants [689#true, 690#false, 691#(= 1 (select |#valid| main_~head~0.base)), 692#(= 1 (select |#valid| main_~x~0.base))] [2018-04-11 14:53:36,446 INFO 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 14:53:36,446 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 14:53:36,446 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 14:53:36,446 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 14:53:36,447 INFO L87 Difference]: Start difference. First operand 129 states and 137 transitions. Second operand 4 states. [2018-04-11 14:53:36,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:53:36,575 INFO L93 Difference]: Finished difference Result 125 states and 134 transitions. [2018-04-11 14:53:36,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 14:53:36,575 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-04-11 14:53:36,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:53:36,576 INFO L225 Difference]: With dead ends: 125 [2018-04-11 14:53:36,576 INFO L226 Difference]: Without dead ends: 125 [2018-04-11 14:53:36,576 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 14:53:36,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2018-04-11 14:53:36,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 121. [2018-04-11 14:53:36,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-04-11 14:53:36,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 133 transitions. [2018-04-11 14:53:36,580 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 133 transitions. Word has length 15 [2018-04-11 14:53:36,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:53:36,580 INFO L459 AbstractCegarLoop]: Abstraction has 121 states and 133 transitions. [2018-04-11 14:53:36,580 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 14:53:36,580 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 133 transitions. [2018-04-11 14:53:36,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-04-11 14:53:36,580 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:53:36,580 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 14:53:36,580 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:53:36,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1814518956, now seen corresponding path program 1 times [2018-04-11 14:53:36,581 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:53:36,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:53:36,592 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:53:36,635 INFO 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 14:53:36,636 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 14:53:36,636 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 14:53:36,636 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:53:36,636 INFO 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 14:53:36,636 INFO L182 omatonBuilderFactory]: Interpolants [944#(and (= 0 main_~head~0.offset) (= 8 (select |#length| main_~head~0.base))), 945#(and (= 8 (select |#length| main_~x~0.base)) (= main_~x~0.offset 0)), 941#true, 942#false, 943#(and (= 8 (select |#length| |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|))] [2018-04-11 14:53:36,636 INFO 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 14:53:36,636 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 14:53:36,636 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 14:53:36,636 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-11 14:53:36,637 INFO L87 Difference]: Start difference. First operand 121 states and 133 transitions. Second operand 5 states. [2018-04-11 14:53:36,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:53:36,778 INFO L93 Difference]: Finished difference Result 157 states and 171 transitions. [2018-04-11 14:53:36,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 14:53:36,778 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-04-11 14:53:36,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:53:36,779 INFO L225 Difference]: With dead ends: 157 [2018-04-11 14:53:36,779 INFO L226 Difference]: Without dead ends: 157 [2018-04-11 14:53:36,779 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 14:53:36,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2018-04-11 14:53:36,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 146. [2018-04-11 14:53:36,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2018-04-11 14:53:36,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 160 transitions. [2018-04-11 14:53:36,784 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 160 transitions. Word has length 15 [2018-04-11 14:53:36,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:53:36,785 INFO L459 AbstractCegarLoop]: Abstraction has 146 states and 160 transitions. [2018-04-11 14:53:36,785 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 14:53:36,785 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 160 transitions. [2018-04-11 14:53:36,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-04-11 14:53:36,785 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:53:36,785 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 14:53:36,785 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:53:36,785 INFO L82 PathProgramCache]: Analyzing trace with hash -124202925, now seen corresponding path program 1 times [2018-04-11 14:53:36,786 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:53:36,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:53:36,794 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:53:36,843 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 14:53:36,843 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 14:53:36,843 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 14:53:36,843 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:53:36,843 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 14:53:36,843 INFO L182 omatonBuilderFactory]: Interpolants [1253#true, 1254#false, 1255#(and (= 0 |main_#t~malloc2.offset|) (= 8 (select |#length| |main_#t~malloc2.base|))), 1256#(and (= 8 (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))), 1257#(and (= 8 (select |#length| |main_#t~mem3.base|)) (= 0 |main_#t~mem3.offset|)), 1258#(and (= 8 (select |#length| main_~x~0.base)) (= main_~x~0.offset 0))] [2018-04-11 14:53:36,843 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 14:53:36,843 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 14:53:36,844 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 14:53:36,844 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-11 14:53:36,844 INFO L87 Difference]: Start difference. First operand 146 states and 160 transitions. Second operand 6 states. [2018-04-11 14:53:37,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:53:37,144 INFO L93 Difference]: Finished difference Result 259 states and 285 transitions. [2018-04-11 14:53:37,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-11 14:53:37,145 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2018-04-11 14:53:37,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:53:37,146 INFO L225 Difference]: With dead ends: 259 [2018-04-11 14:53:37,146 INFO L226 Difference]: Without dead ends: 259 [2018-04-11 14:53:37,146 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-04-11 14:53:37,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2018-04-11 14:53:37,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 136. [2018-04-11 14:53:37,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2018-04-11 14:53:37,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 149 transitions. [2018-04-11 14:53:37,152 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 149 transitions. Word has length 18 [2018-04-11 14:53:37,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:53:37,152 INFO L459 AbstractCegarLoop]: Abstraction has 136 states and 149 transitions. [2018-04-11 14:53:37,152 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 14:53:37,152 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 149 transitions. [2018-04-11 14:53:37,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-04-11 14:53:37,153 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:53:37,153 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 14:53:37,153 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:53:37,153 INFO L82 PathProgramCache]: Analyzing trace with hash -124202926, now seen corresponding path program 1 times [2018-04-11 14:53:37,154 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:53:37,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:53:37,163 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:53:37,188 INFO 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 14:53:37,188 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 14:53:37,188 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 14:53:37,188 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:53:37,189 INFO 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 14:53:37,189 INFO L182 omatonBuilderFactory]: Interpolants [1665#true, 1666#false, 1667#(= 1 (select |#valid| |main_#t~malloc2.base|)), 1668#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 1669#(= 1 (select |#valid| |main_#t~mem3.base|)), 1670#(= 1 (select |#valid| main_~x~0.base))] [2018-04-11 14:53:37,189 INFO 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 14:53:37,189 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 14:53:37,189 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 14:53:37,189 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-11 14:53:37,189 INFO L87 Difference]: Start difference. First operand 136 states and 149 transitions. Second operand 6 states. [2018-04-11 14:53:37,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:53:37,371 INFO L93 Difference]: Finished difference Result 258 states and 282 transitions. [2018-04-11 14:53:37,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-11 14:53:37,371 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2018-04-11 14:53:37,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:53:37,372 INFO L225 Difference]: With dead ends: 258 [2018-04-11 14:53:37,372 INFO L226 Difference]: Without dead ends: 258 [2018-04-11 14:53:37,372 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 14:53:37,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2018-04-11 14:53:37,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 135. [2018-04-11 14:53:37,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2018-04-11 14:53:37,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 148 transitions. [2018-04-11 14:53:37,377 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 148 transitions. Word has length 18 [2018-04-11 14:53:37,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:53:37,377 INFO L459 AbstractCegarLoop]: Abstraction has 135 states and 148 transitions. [2018-04-11 14:53:37,377 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 14:53:37,377 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 148 transitions. [2018-04-11 14:53:37,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-04-11 14:53:37,378 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:53:37,378 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] [2018-04-11 14:53:37,378 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:53:37,378 INFO L82 PathProgramCache]: Analyzing trace with hash -687523821, now seen corresponding path program 1 times [2018-04-11 14:53:37,379 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:53:37,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:53:37,389 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:53:37,443 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 14:53:37,443 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 14:53:37,444 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-11 14:53:37,444 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:53:37,447 INFO 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 14:53:37,447 INFO L182 omatonBuilderFactory]: Interpolants [2071#true, 2072#false, 2073#(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))), 2074#(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))), 2075#(and (= |main_#t~mem4.offset| 0) (= |main_#t~mem4.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 2076#(not |main_#t~short6|)] [2018-04-11 14:53:37,447 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 14:53:37,448 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 14:53:37,448 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 14:53:37,448 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-11 14:53:37,448 INFO L87 Difference]: Start difference. First operand 135 states and 148 transitions. Second operand 6 states. [2018-04-11 14:53:37,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:53:37,568 INFO L93 Difference]: Finished difference Result 169 states and 185 transitions. [2018-04-11 14:53:37,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-11 14:53:37,568 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2018-04-11 14:53:37,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:53:37,569 INFO L225 Difference]: With dead ends: 169 [2018-04-11 14:53:37,569 INFO L226 Difference]: Without dead ends: 169 [2018-04-11 14:53:37,569 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-04-11 14:53:37,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2018-04-11 14:53:37,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 145. [2018-04-11 14:53:37,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2018-04-11 14:53:37,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 159 transitions. [2018-04-11 14:53:37,573 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 159 transitions. Word has length 26 [2018-04-11 14:53:37,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:53:37,573 INFO L459 AbstractCegarLoop]: Abstraction has 145 states and 159 transitions. [2018-04-11 14:53:37,573 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 14:53:37,573 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 159 transitions. [2018-04-11 14:53:37,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-04-11 14:53:37,574 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:53:37,574 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] [2018-04-11 14:53:37,574 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:53:37,574 INFO L82 PathProgramCache]: Analyzing trace with hash -1498398890, now seen corresponding path program 1 times [2018-04-11 14:53:37,575 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:53:37,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:53:37,582 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:53:37,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:53:37,622 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 14:53:37,622 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-11 14:53:37,622 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:53:37,623 INFO 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 14:53:37,623 INFO L182 omatonBuilderFactory]: Interpolants [2400#(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))) |main_#t~short6|), 2401#(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))), 2402#(and (= |main_#t~mem8.base| 0) (= |main_#t~mem8.offset| 0)), 2397#true, 2398#false, 2399#(and (= |main_#t~mem4.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= |main_#t~mem4.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))] [2018-04-11 14:53:37,623 INFO 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 14:53:37,623 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 14:53:37,623 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 14:53:37,623 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-04-11 14:53:37,623 INFO L87 Difference]: Start difference. First operand 145 states and 159 transitions. Second operand 6 states. [2018-04-11 14:53:37,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:53:37,725 INFO L93 Difference]: Finished difference Result 167 states and 181 transitions. [2018-04-11 14:53:37,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-11 14:53:37,725 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2018-04-11 14:53:37,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:53:37,726 INFO L225 Difference]: With dead ends: 167 [2018-04-11 14:53:37,726 INFO L226 Difference]: Without dead ends: 167 [2018-04-11 14:53:37,726 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-04-11 14:53:37,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2018-04-11 14:53:37,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 157. [2018-04-11 14:53:37,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2018-04-11 14:53:37,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 173 transitions. [2018-04-11 14:53:37,728 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 173 transitions. Word has length 27 [2018-04-11 14:53:37,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:53:37,729 INFO L459 AbstractCegarLoop]: Abstraction has 157 states and 173 transitions. [2018-04-11 14:53:37,729 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 14:53:37,729 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 173 transitions. [2018-04-11 14:53:37,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-04-11 14:53:37,729 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:53:37,729 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 14:53:37,729 INFO L408 AbstractCegarLoop]: === Iteration 9 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:53:37,729 INFO L82 PathProgramCache]: Analyzing trace with hash -1679519150, now seen corresponding path program 1 times [2018-04-11 14:53:37,730 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:53:37,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:53:37,736 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:53:37,765 INFO 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 14:53:37,765 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 14:53:37,765 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 14:53:37,765 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:53:37,766 INFO 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 14:53:37,766 INFO L182 omatonBuilderFactory]: Interpolants [2736#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 2737#(= 1 (select |#valid| |main_#t~mem10.base|)), 2738#(= 1 (select |#valid| main_~x~0.base)), 2733#true, 2734#false, 2735#(= 1 (select |#valid| |main_#t~malloc9.base|))] [2018-04-11 14:53:37,766 INFO 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 14:53:37,766 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 14:53:37,766 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 14:53:37,766 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-11 14:53:37,766 INFO L87 Difference]: Start difference. First operand 157 states and 173 transitions. Second operand 6 states. [2018-04-11 14:53:37,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:53:37,955 INFO L93 Difference]: Finished difference Result 218 states and 238 transitions. [2018-04-11 14:53:37,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-11 14:53:37,956 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2018-04-11 14:53:37,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:53:37,957 INFO L225 Difference]: With dead ends: 218 [2018-04-11 14:53:37,957 INFO L226 Difference]: Without dead ends: 218 [2018-04-11 14:53:37,957 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-04-11 14:53:37,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2018-04-11 14:53:37,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 156. [2018-04-11 14:53:37,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2018-04-11 14:53:37,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 172 transitions. [2018-04-11 14:53:37,961 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 172 transitions. Word has length 30 [2018-04-11 14:53:37,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:53:37,961 INFO L459 AbstractCegarLoop]: Abstraction has 156 states and 172 transitions. [2018-04-11 14:53:37,961 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 14:53:37,961 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 172 transitions. [2018-04-11 14:53:37,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-04-11 14:53:37,962 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:53:37,962 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 14:53:37,962 INFO L408 AbstractCegarLoop]: === Iteration 10 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:53:37,962 INFO L82 PathProgramCache]: Analyzing trace with hash -1679519149, now seen corresponding path program 1 times [2018-04-11 14:53:37,963 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:53:37,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:53:37,972 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:53:38,019 INFO 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 14:53:38,019 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 14:53:38,020 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 14:53:38,020 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:53:38,020 INFO 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 14:53:38,020 INFO L182 omatonBuilderFactory]: Interpolants [3120#false, 3121#(and (= 0 |main_#t~malloc9.offset|) (= 8 (select |#length| |main_#t~malloc9.base|))), 3122#(and (= 8 (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))), 3123#(and (= 8 (select |#length| |main_#t~mem10.base|)) (= 0 |main_#t~mem10.offset|)), 3124#(and (= 8 (select |#length| main_~x~0.base)) (= main_~x~0.offset 0)), 3119#true] [2018-04-11 14:53:38,020 INFO 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 14:53:38,020 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 14:53:38,021 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 14:53:38,021 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-11 14:53:38,021 INFO L87 Difference]: Start difference. First operand 156 states and 172 transitions. Second operand 6 states. [2018-04-11 14:53:38,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:53:38,208 INFO L93 Difference]: Finished difference Result 212 states and 234 transitions. [2018-04-11 14:53:38,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 14:53:38,208 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2018-04-11 14:53:38,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:53:38,209 INFO L225 Difference]: With dead ends: 212 [2018-04-11 14:53:38,209 INFO L226 Difference]: Without dead ends: 212 [2018-04-11 14:53:38,210 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 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 14:53:38,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2018-04-11 14:53:38,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 154. [2018-04-11 14:53:38,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2018-04-11 14:53:38,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 170 transitions. [2018-04-11 14:53:38,213 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 170 transitions. Word has length 30 [2018-04-11 14:53:38,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:53:38,213 INFO L459 AbstractCegarLoop]: Abstraction has 154 states and 170 transitions. [2018-04-11 14:53:38,213 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 14:53:38,213 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 170 transitions. [2018-04-11 14:53:38,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-04-11 14:53:38,214 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:53:38,214 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] [2018-04-11 14:53:38,214 INFO L408 AbstractCegarLoop]: === Iteration 11 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:53:38,214 INFO L82 PathProgramCache]: Analyzing trace with hash -1284483111, now seen corresponding path program 1 times [2018-04-11 14:53:38,215 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:53:38,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:53:38,227 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:53:38,366 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 14:53:38,366 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:53:38,366 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-04-11 14:53:38,366 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:53:38,367 INFO 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 14:53:38,367 INFO L182 omatonBuilderFactory]: Interpolants [3497#true, 3498#false, 3499#(= 1 (select |#valid| main_~head~0.base)), 3500#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 3501#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 3502#(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)), 3503#(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))), 3504#(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))), 3505#(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))), 3506#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 3507#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 3508#(= 1 (select |#valid| |main_#t~mem7.base|)), 3509#(= 1 (select |#valid| main_~x~0.base))] [2018-04-11 14:53:38,367 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 14:53:38,367 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-11 14:53:38,367 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-11 14:53:38,367 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-04-11 14:53:38,368 INFO L87 Difference]: Start difference. First operand 154 states and 170 transitions. Second operand 13 states. [2018-04-11 14:53:38,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:53:38,906 INFO L93 Difference]: Finished difference Result 263 states and 289 transitions. [2018-04-11 14:53:38,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-04-11 14:53:38,907 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 35 [2018-04-11 14:53:38,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:53:38,909 INFO L225 Difference]: With dead ends: 263 [2018-04-11 14:53:38,909 INFO L226 Difference]: Without dead ends: 263 [2018-04-11 14:53:38,909 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=431, Unknown=0, NotChecked=0, Total=552 [2018-04-11 14:53:38,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2018-04-11 14:53:38,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 176. [2018-04-11 14:53:38,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-04-11 14:53:38,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 196 transitions. [2018-04-11 14:53:38,914 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 196 transitions. Word has length 35 [2018-04-11 14:53:38,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:53:38,914 INFO L459 AbstractCegarLoop]: Abstraction has 176 states and 196 transitions. [2018-04-11 14:53:38,914 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-11 14:53:38,914 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 196 transitions. [2018-04-11 14:53:38,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-04-11 14:53:38,915 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:53:38,915 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] [2018-04-11 14:53:38,915 INFO L408 AbstractCegarLoop]: === Iteration 12 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:53:38,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1284483110, now seen corresponding path program 1 times [2018-04-11 14:53:38,916 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:53:38,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:53:38,928 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:53:39,070 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 14:53:39,070 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:53:39,070 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-04-11 14:53:39,070 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:53:39,071 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 14:53:39,071 INFO L182 omatonBuilderFactory]: Interpolants [3971#true, 3972#false, 3973#(= 1 (select |#valid| main_~head~0.base)), 3974#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 3975#(and (= 0 |main_#t~malloc2.offset|) (= 8 (select |#length| |main_#t~malloc2.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 3976#(and (= 8 (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)), 3977#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem3.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 3978#(and (= 8 (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))), 3979#(and (= 8 (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))), 3980#(and (= 8 (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))), 3981#(and (= 8 (select |#length| |main_#t~mem7.base|)) (= 0 |main_#t~mem7.offset|)), 3982#(and (= 8 (select |#length| main_~x~0.base)) (= main_~x~0.offset 0))] [2018-04-11 14:53:39,071 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 14:53:39,071 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-11 14:53:39,072 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-11 14:53:39,072 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2018-04-11 14:53:39,072 INFO L87 Difference]: Start difference. First operand 176 states and 196 transitions. Second operand 12 states. [2018-04-11 14:53:39,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:53:39,650 INFO L93 Difference]: Finished difference Result 286 states and 315 transitions. [2018-04-11 14:53:39,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-11 14:53:39,650 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2018-04-11 14:53:39,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:53:39,651 INFO L225 Difference]: With dead ends: 286 [2018-04-11 14:53:39,651 INFO L226 Difference]: Without dead ends: 286 [2018-04-11 14:53:39,652 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2018-04-11 14:53:39,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2018-04-11 14:53:39,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 174. [2018-04-11 14:53:39,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2018-04-11 14:53:39,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 193 transitions. [2018-04-11 14:53:39,654 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 193 transitions. Word has length 35 [2018-04-11 14:53:39,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:53:39,654 INFO L459 AbstractCegarLoop]: Abstraction has 174 states and 193 transitions. [2018-04-11 14:53:39,654 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-11 14:53:39,654 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 193 transitions. [2018-04-11 14:53:39,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-04-11 14:53:39,655 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:53:39,655 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] [2018-04-11 14:53:39,655 INFO L408 AbstractCegarLoop]: === Iteration 13 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:53:39,655 INFO L82 PathProgramCache]: Analyzing trace with hash 1863726610, now seen corresponding path program 1 times [2018-04-11 14:53:39,656 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:53:39,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:53:39,666 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:53:39,744 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 14:53:39,745 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:53:39,745 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-04-11 14:53:39,745 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:53:39,745 INFO 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 14:53:39,746 INFO L182 omatonBuilderFactory]: Interpolants [4464#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 4465#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 4466#(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)), 4467#(and (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|)), 4468#(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))), 4469#(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))), 4470#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 4471#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 4472#(= 1 (select |#valid| |main_#t~mem11.base|)), 4461#true, 4462#false, 4463#(= 1 (select |#valid| main_~head~0.base))] [2018-04-11 14:53:39,746 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 14:53:39,746 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-11 14:53:39,746 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-11 14:53:39,746 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2018-04-11 14:53:39,746 INFO L87 Difference]: Start difference. First operand 174 states and 193 transitions. Second operand 12 states. [2018-04-11 14:53:40,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:53:40,246 INFO L93 Difference]: Finished difference Result 284 states and 314 transitions. [2018-04-11 14:53:40,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-04-11 14:53:40,246 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 36 [2018-04-11 14:53:40,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:53:40,247 INFO L225 Difference]: With dead ends: 284 [2018-04-11 14:53:40,247 INFO L226 Difference]: Without dead ends: 284 [2018-04-11 14:53:40,248 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=445, Unknown=0, NotChecked=0, Total=552 [2018-04-11 14:53:40,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2018-04-11 14:53:40,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 182. [2018-04-11 14:53:40,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2018-04-11 14:53:40,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 203 transitions. [2018-04-11 14:53:40,252 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 203 transitions. Word has length 36 [2018-04-11 14:53:40,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:53:40,252 INFO L459 AbstractCegarLoop]: Abstraction has 182 states and 203 transitions. [2018-04-11 14:53:40,252 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-11 14:53:40,252 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 203 transitions. [2018-04-11 14:53:40,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-04-11 14:53:40,253 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:53:40,253 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] [2018-04-11 14:53:40,253 INFO L408 AbstractCegarLoop]: === Iteration 14 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:53:40,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1863726611, now seen corresponding path program 1 times [2018-04-11 14:53:40,254 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:53:40,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:53:40,264 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:53:40,359 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 14:53:40,359 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:53:40,359 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2018-04-11 14:53:40,359 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:53:40,359 INFO 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 14:53:40,360 INFO L182 omatonBuilderFactory]: Interpolants [4963#true, 4964#false, 4965#(= 1 (select |#valid| main_~head~0.base)), 4966#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 4967#(and (= 0 |main_#t~malloc2.offset|) (= 8 (select |#length| |main_#t~malloc2.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 4968#(and (= 8 (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)), 4969#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem3.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 4970#(and (= 8 (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))), 4971#(and (= 8 (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))), 4972#(and (= 8 (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))), 4973#(and (= |main_#t~mem11.offset| 0) (= 8 (select |#length| |main_#t~mem11.base|)))] [2018-04-11 14:53:40,360 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 14:53:40,360 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-04-11 14:53:40,360 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-04-11 14:53:40,360 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2018-04-11 14:53:40,360 INFO L87 Difference]: Start difference. First operand 182 states and 203 transitions. Second operand 11 states. [2018-04-11 14:53:40,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:53:40,766 INFO L93 Difference]: Finished difference Result 277 states and 306 transitions. [2018-04-11 14:53:40,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-11 14:53:40,766 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 36 [2018-04-11 14:53:40,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:53:40,767 INFO L225 Difference]: With dead ends: 277 [2018-04-11 14:53:40,767 INFO L226 Difference]: Without dead ends: 277 [2018-04-11 14:53:40,768 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2018-04-11 14:53:40,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2018-04-11 14:53:40,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 182. [2018-04-11 14:53:40,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2018-04-11 14:53:40,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 202 transitions. [2018-04-11 14:53:40,771 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 202 transitions. Word has length 36 [2018-04-11 14:53:40,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:53:40,771 INFO L459 AbstractCegarLoop]: Abstraction has 182 states and 202 transitions. [2018-04-11 14:53:40,771 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-04-11 14:53:40,771 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 202 transitions. [2018-04-11 14:53:40,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-04-11 14:53:40,772 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:53:40,772 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 14:53:40,772 INFO L408 AbstractCegarLoop]: === Iteration 15 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:53:40,772 INFO L82 PathProgramCache]: Analyzing trace with hash -991108664, now seen corresponding path program 1 times [2018-04-11 14:53:40,774 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:53:40,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:53:40,781 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:53:40,804 INFO 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 14:53:40,804 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 14:53:40,804 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 14:53:40,805 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:53:40,805 INFO 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 14:53:40,805 INFO L182 omatonBuilderFactory]: Interpolants [5447#true, 5448#false, 5449#(not (= 0 |main_#t~malloc0.base|)), 5450#(not (= 0 main_~head~0.base)), 5451#(not (= 0 main_~x~0.base))] [2018-04-11 14:53:40,805 INFO 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 14:53:40,805 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 14:53:40,805 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 14:53:40,806 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-11 14:53:40,806 INFO L87 Difference]: Start difference. First operand 182 states and 202 transitions. Second operand 5 states. [2018-04-11 14:53:40,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:53:40,885 INFO L93 Difference]: Finished difference Result 216 states and 238 transitions. [2018-04-11 14:53:40,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 14:53:40,885 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2018-04-11 14:53:40,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:53:40,886 INFO L225 Difference]: With dead ends: 216 [2018-04-11 14:53:40,886 INFO L226 Difference]: Without dead ends: 216 [2018-04-11 14:53:40,886 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 14:53:40,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2018-04-11 14:53:40,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 182. [2018-04-11 14:53:40,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2018-04-11 14:53:40,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 201 transitions. [2018-04-11 14:53:40,889 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 201 transitions. Word has length 38 [2018-04-11 14:53:40,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:53:40,889 INFO L459 AbstractCegarLoop]: Abstraction has 182 states and 201 transitions. [2018-04-11 14:53:40,889 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 14:53:40,889 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 201 transitions. [2018-04-11 14:53:40,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-04-11 14:53:40,890 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:53:40,890 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] [2018-04-11 14:53:40,890 INFO L408 AbstractCegarLoop]: === Iteration 16 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:53:40,890 INFO L82 PathProgramCache]: Analyzing trace with hash -559589853, now seen corresponding path program 1 times [2018-04-11 14:53:40,891 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:53:40,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:53:40,898 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:53:40,988 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 14:53:40,988 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:53:40,988 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2018-04-11 14:53:40,988 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:53:40,988 INFO 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 14:53:40,988 INFO L182 omatonBuilderFactory]: Interpolants [5856#(= 1 (select |#valid| main_~head~0.base)), 5857#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 5858#(and (not (= main_~x~0.base |main_#t~malloc9.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 5859#(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)), 5860#(and (= |main_#t~mem10.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem10.base|))), 5861#(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))), 5862#(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))), 5863#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 5864#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 5865#(= 1 (select |#valid| |main_#t~mem12.base|)), 5866#(= 1 (select |#valid| main_~next~0.base)), 5867#(= 1 (select |#valid| main_~x~0.base)), 5854#true, 5855#false] [2018-04-11 14:53:40,989 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 14:53:40,989 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-04-11 14:53:40,989 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-04-11 14:53:40,989 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2018-04-11 14:53:40,989 INFO L87 Difference]: Start difference. First operand 182 states and 201 transitions. Second operand 14 states. [2018-04-11 14:53:41,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:53:41,386 INFO L93 Difference]: Finished difference Result 275 states and 300 transitions. [2018-04-11 14:53:41,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-11 14:53:41,386 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 41 [2018-04-11 14:53:41,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:53:41,387 INFO L225 Difference]: With dead ends: 275 [2018-04-11 14:53:41,387 INFO L226 Difference]: Without dead ends: 275 [2018-04-11 14:53:41,387 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=128, Invalid=522, Unknown=0, NotChecked=0, Total=650 [2018-04-11 14:53:41,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2018-04-11 14:53:41,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 216. [2018-04-11 14:53:41,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2018-04-11 14:53:41,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 240 transitions. [2018-04-11 14:53:41,390 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 240 transitions. Word has length 41 [2018-04-11 14:53:41,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:53:41,390 INFO L459 AbstractCegarLoop]: Abstraction has 216 states and 240 transitions. [2018-04-11 14:53:41,390 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-04-11 14:53:41,390 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 240 transitions. [2018-04-11 14:53:41,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-04-11 14:53:41,390 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:53:41,390 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] [2018-04-11 14:53:41,390 INFO L408 AbstractCegarLoop]: === Iteration 17 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:53:41,391 INFO L82 PathProgramCache]: Analyzing trace with hash -559589852, now seen corresponding path program 1 times [2018-04-11 14:53:41,391 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:53:41,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:53:41,399 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:53:41,575 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 14:53:41,575 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:53:41,575 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2018-04-11 14:53:41,575 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:53:41,576 INFO 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 14:53:41,576 INFO L182 omatonBuilderFactory]: Interpolants [6383#true, 6384#false, 6385#(= 1 (select |#valid| main_~head~0.base)), 6386#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 6387#(and (= 0 |main_#t~malloc9.offset|) (not (= main_~x~0.base |main_#t~malloc9.base|)) (= main_~x~0.offset main_~head~0.offset) (= 8 (select |#length| |main_#t~malloc9.base|)) (= main_~x~0.base main_~head~0.base)), 6388#(and (= 8 (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)), 6389#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem10.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 6390#(and (= 8 (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))), 6391#(and (= 8 (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))), 6392#(and (= 8 (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))), 6393#(and (= |main_#t~mem12.offset| (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)) (= 8 (select |#length| |main_#t~mem12.base|))), 6394#(and (= main_~next~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 8 (select |#length| main_~next~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 6395#(and (= 0 main_~next~0.offset) (= 8 (select |#length| main_~next~0.base))), 6396#(and (= 8 (select |#length| main_~x~0.base)) (= 0 main_~x~0.offset))] [2018-04-11 14:53:41,576 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 14:53:41,576 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-04-11 14:53:41,576 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-04-11 14:53:41,576 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2018-04-11 14:53:41,576 INFO L87 Difference]: Start difference. First operand 216 states and 240 transitions. Second operand 14 states. [2018-04-11 14:53:42,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:53:42,143 INFO L93 Difference]: Finished difference Result 274 states and 301 transitions. [2018-04-11 14:53:42,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-04-11 14:53:42,143 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 41 [2018-04-11 14:53:42,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:53:42,144 INFO L225 Difference]: With dead ends: 274 [2018-04-11 14:53:42,144 INFO L226 Difference]: Without dead ends: 274 [2018-04-11 14:53:42,144 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=451, Unknown=0, NotChecked=0, Total=552 [2018-04-11 14:53:42,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2018-04-11 14:53:42,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 215. [2018-04-11 14:53:42,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2018-04-11 14:53:42,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 238 transitions. [2018-04-11 14:53:42,149 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 238 transitions. Word has length 41 [2018-04-11 14:53:42,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:53:42,149 INFO L459 AbstractCegarLoop]: Abstraction has 215 states and 238 transitions. [2018-04-11 14:53:42,149 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-04-11 14:53:42,149 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 238 transitions. [2018-04-11 14:53:42,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-04-11 14:53:42,150 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:53:42,150 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] [2018-04-11 14:53:42,150 INFO L408 AbstractCegarLoop]: === Iteration 18 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:53:42,150 INFO L82 PathProgramCache]: Analyzing trace with hash -1974624012, now seen corresponding path program 1 times [2018-04-11 14:53:42,151 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:53:42,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:53:42,159 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:53:42,187 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 14:53:42,188 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:53:42,188 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-04-11 14:53:42,188 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:53:42,188 INFO 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 14:53:42,188 INFO L182 omatonBuilderFactory]: Interpolants [6912#(= 1 (select |#valid| main_~prev~0.base)), 6906#true, 6907#false, 6908#(= main_~x~0.base main_~head~0.base), 6909#(and (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 6910#(= 1 (select |#valid| main_~head~0.base)), 6911#(= 1 (select |#valid| main_~x~0.base))] [2018-04-11 14:53:42,188 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 14:53:42,188 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-11 14:53:42,188 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-11 14:53:42,188 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-04-11 14:53:42,188 INFO L87 Difference]: Start difference. First operand 215 states and 238 transitions. Second operand 7 states. [2018-04-11 14:53:42,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:53:42,383 INFO L93 Difference]: Finished difference Result 267 states and 292 transitions. [2018-04-11 14:53:42,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-11 14:53:42,383 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 44 [2018-04-11 14:53:42,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:53:42,384 INFO L225 Difference]: With dead ends: 267 [2018-04-11 14:53:42,384 INFO L226 Difference]: Without dead ends: 267 [2018-04-11 14:53:42,385 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-04-11 14:53:42,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2018-04-11 14:53:42,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 220. [2018-04-11 14:53:42,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2018-04-11 14:53:42,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 247 transitions. [2018-04-11 14:53:42,389 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 247 transitions. Word has length 44 [2018-04-11 14:53:42,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:53:42,389 INFO L459 AbstractCegarLoop]: Abstraction has 220 states and 247 transitions. [2018-04-11 14:53:42,389 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-11 14:53:42,389 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 247 transitions. [2018-04-11 14:53:42,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-04-11 14:53:42,390 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:53:42,390 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] [2018-04-11 14:53:42,390 INFO L408 AbstractCegarLoop]: === Iteration 19 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:53:42,390 INFO L82 PathProgramCache]: Analyzing trace with hash -1974624011, now seen corresponding path program 1 times [2018-04-11 14:53:42,391 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:53:42,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:53:42,399 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:53:42,515 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 14:53:42,515 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:53:42,515 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-04-11 14:53:42,515 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:53:42,516 INFO 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 14:53:42,516 INFO L182 omatonBuilderFactory]: Interpolants [7409#true, 7410#false, 7411#(= 1 (select |#valid| main_~head~0.base)), 7412#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 7413#(and (not (= main_~x~0.base |main_#t~malloc9.base|)) (= main_~x~0.offset main_~head~0.offset) (not (= |main_#t~malloc9.base| 0)) (= main_~x~0.base main_~head~0.base)), 7414#(and (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) main_~head~0.offset) 0)) (= main_~x~0.base main_~head~0.base)), 7415#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0)) (not (= main_~head~0.base |main_#t~mem10.base|))), 7416#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0)) (not (= main_~x~0.base main_~head~0.base))), 7417#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0)), 7418#(not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) 0)), 7419#(and (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) 0)) (= |main_#t~mem12.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 7420#(and (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) 0)) (= main_~next~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 7421#(not (= main_~next~0.base 0)), 7422#(not (= main_~x~0.base 0))] [2018-04-11 14:53:42,516 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 14:53:42,516 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-04-11 14:53:42,516 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-04-11 14:53:42,516 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2018-04-11 14:53:42,516 INFO L87 Difference]: Start difference. First operand 220 states and 247 transitions. Second operand 14 states. [2018-04-11 14:53:42,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:53:42,833 INFO L93 Difference]: Finished difference Result 236 states and 262 transitions. [2018-04-11 14:53:42,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-11 14:53:42,833 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 44 [2018-04-11 14:53:42,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:53:42,834 INFO L225 Difference]: With dead ends: 236 [2018-04-11 14:53:42,834 INFO L226 Difference]: Without dead ends: 236 [2018-04-11 14:53:42,834 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=449, Unknown=0, NotChecked=0, Total=552 [2018-04-11 14:53:42,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2018-04-11 14:53:42,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 218. [2018-04-11 14:53:42,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2018-04-11 14:53:42,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 244 transitions. [2018-04-11 14:53:42,837 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 244 transitions. Word has length 44 [2018-04-11 14:53:42,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:53:42,837 INFO L459 AbstractCegarLoop]: Abstraction has 218 states and 244 transitions. [2018-04-11 14:53:42,837 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-04-11 14:53:42,838 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 244 transitions. [2018-04-11 14:53:42,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-04-11 14:53:42,838 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:53:42,838 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] [2018-04-11 14:53:42,838 INFO L408 AbstractCegarLoop]: === Iteration 20 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:53:42,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1961203411, now seen corresponding path program 2 times [2018-04-11 14:53:42,839 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:53:42,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:53:42,849 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:53:43,011 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:53:43,011 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:53:43,011 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-04-11 14:53:43,011 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:53:43,011 INFO 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 14:53:43,011 INFO L182 omatonBuilderFactory]: Interpolants [7904#(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))), 7905#(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)) (not (= main_~head~0.base |main_#t~malloc2.base|))), 7906#(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)))), 7907#(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)))), 7908#(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))), 7909#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 7910#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 7911#(= 1 (select |#valid| |main_#t~mem7.base|)), 7912#(= 1 (select |#valid| main_~x~0.base)), 7897#true, 7898#false, 7899#(= 1 (select |#valid| main_~head~0.base)), 7900#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 7901#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 7902#(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)), 7903#(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)) (= (select |#valid| main_~head~0.base) 1))] [2018-04-11 14:53:43,012 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:53:43,012 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-11 14:53:43,012 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-11 14:53:43,012 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2018-04-11 14:53:43,012 INFO L87 Difference]: Start difference. First operand 218 states and 244 transitions. Second operand 16 states. [2018-04-11 14:53:43,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:53:43,578 INFO L93 Difference]: Finished difference Result 347 states and 381 transitions. [2018-04-11 14:53:43,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-11 14:53:43,578 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 44 [2018-04-11 14:53:43,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:53:43,579 INFO L225 Difference]: With dead ends: 347 [2018-04-11 14:53:43,579 INFO L226 Difference]: Without dead ends: 347 [2018-04-11 14:53:43,579 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=208, Invalid=784, Unknown=0, NotChecked=0, Total=992 [2018-04-11 14:53:43,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2018-04-11 14:53:43,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 240. [2018-04-11 14:53:43,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2018-04-11 14:53:43,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 270 transitions. [2018-04-11 14:53:43,582 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 270 transitions. Word has length 44 [2018-04-11 14:53:43,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:53:43,582 INFO L459 AbstractCegarLoop]: Abstraction has 240 states and 270 transitions. [2018-04-11 14:53:43,582 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-11 14:53:43,582 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 270 transitions. [2018-04-11 14:53:43,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-04-11 14:53:43,582 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:53:43,582 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] [2018-04-11 14:53:43,582 INFO L408 AbstractCegarLoop]: === Iteration 21 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:53:43,582 INFO L82 PathProgramCache]: Analyzing trace with hash 1961203412, now seen corresponding path program 2 times [2018-04-11 14:53:43,583 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:53:43,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:53:43,590 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:53:43,778 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:53:43,778 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:53:43,778 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-04-11 14:53:43,778 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:53:43,778 INFO 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 14:53:43,778 INFO L182 omatonBuilderFactory]: Interpolants [8544#(and (= 8 (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))), 8545#(and (= 8 (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))), 8546#(and (= 8 (select |#length| |main_#t~mem7.base|)) (= 0 |main_#t~mem7.offset|)), 8547#(and (= 8 (select |#length| main_~x~0.base)) (= main_~x~0.offset 0)), 8532#true, 8533#false, 8534#(= 1 (select |#valid| main_~head~0.base)), 8535#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 8536#(and (= 0 |main_#t~malloc2.offset|) (= 8 (select |#length| |main_#t~malloc2.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 8537#(and (= 8 (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)), 8538#(and (= 8 (select |#length| |main_#t~mem3.base|)) (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)) (= (select |#valid| main_~head~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 8539#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (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))), 8540#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| main_~x~0.base)) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~head~0.base |main_#t~malloc2.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 8541#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (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))), 8542#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem3.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 8543#(and (= 8 (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)))] [2018-04-11 14:53:43,778 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:53:43,778 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-11 14:53:43,779 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-11 14:53:43,779 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2018-04-11 14:53:43,779 INFO L87 Difference]: Start difference. First operand 240 states and 270 transitions. Second operand 16 states. [2018-04-11 14:53:44,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:53:44,299 INFO L93 Difference]: Finished difference Result 373 states and 411 transitions. [2018-04-11 14:53:44,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-11 14:53:44,299 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 44 [2018-04-11 14:53:44,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:53:44,300 INFO L225 Difference]: With dead ends: 373 [2018-04-11 14:53:44,300 INFO L226 Difference]: Without dead ends: 373 [2018-04-11 14:53:44,300 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=161, Invalid=651, Unknown=0, NotChecked=0, Total=812 [2018-04-11 14:53:44,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2018-04-11 14:53:44,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 233. [2018-04-11 14:53:44,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2018-04-11 14:53:44,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 262 transitions. [2018-04-11 14:53:44,302 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 262 transitions. Word has length 44 [2018-04-11 14:53:44,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:53:44,302 INFO L459 AbstractCegarLoop]: Abstraction has 233 states and 262 transitions. [2018-04-11 14:53:44,303 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-11 14:53:44,303 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 262 transitions. [2018-04-11 14:53:44,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-04-11 14:53:44,303 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:53:44,303 INFO L355 BasicCegarLoop]: trace histogram [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] [2018-04-11 14:53:44,303 INFO L408 AbstractCegarLoop]: === Iteration 22 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:53:44,303 INFO L82 PathProgramCache]: Analyzing trace with hash 1178630697, now seen corresponding path program 3 times [2018-04-11 14:53:44,304 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:53:44,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:53:44,309 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:53:44,445 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:53:44,445 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:53:44,445 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-04-11 14:53:44,445 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:53:44,445 INFO 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 14:53:44,445 INFO L182 omatonBuilderFactory]: Interpolants [9184#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= |main_#t~malloc2.base| main_~x~0.base))), 9185#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) main_~x~0.base))), 9186#(and (not (= |main_#t~mem3.base| main_~head~0.base)) (= |main_#t~mem3.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem3.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 9187#(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))), 9188#(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)))), 9189#(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)))), 9190#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem7.base|) |main_#t~mem7.offset|)) (= 0 (select (select |#memory_$Pointer$.base| |main_#t~mem7.base|) |main_#t~mem7.offset|))), 9191#(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))), 9192#(and (= |main_#t~mem4.offset| 0) (= |main_#t~mem4.base| (select (select |#memory_$Pointer$.base| 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)), 9193#(and (not |main_#t~short6|) (= (select |#valid| main_~x~0.base) 1)), 9180#true, 9181#false, 9182#(= 1 (select |#valid| main_~head~0.base)), 9183#(and (= main_~x~0.offset main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base)) (= main_~x~0.base main_~head~0.base))] [2018-04-11 14:53:44,445 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:53:44,445 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-04-11 14:53:44,445 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-04-11 14:53:44,446 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2018-04-11 14:53:44,446 INFO L87 Difference]: Start difference. First operand 233 states and 262 transitions. Second operand 14 states. [2018-04-11 14:53:44,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:53:44,987 INFO L93 Difference]: Finished difference Result 285 states and 314 transitions. [2018-04-11 14:53:44,989 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-11 14:53:44,989 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 45 [2018-04-11 14:53:44,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:53:44,990 INFO L225 Difference]: With dead ends: 285 [2018-04-11 14:53:44,990 INFO L226 Difference]: Without dead ends: 285 [2018-04-11 14:53:44,990 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=583, Unknown=0, NotChecked=0, Total=702 [2018-04-11 14:53:44,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2018-04-11 14:53:44,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 242. [2018-04-11 14:53:44,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2018-04-11 14:53:44,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 271 transitions. [2018-04-11 14:53:44,993 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 271 transitions. Word has length 45 [2018-04-11 14:53:44,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:53:44,993 INFO L459 AbstractCegarLoop]: Abstraction has 242 states and 271 transitions. [2018-04-11 14:53:44,993 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-04-11 14:53:44,993 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 271 transitions. [2018-04-11 14:53:44,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-04-11 14:53:44,993 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:53:44,993 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] [2018-04-11 14:53:44,993 INFO L408 AbstractCegarLoop]: === Iteration 23 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:53:44,994 INFO L82 PathProgramCache]: Analyzing trace with hash -599206312, now seen corresponding path program 2 times [2018-04-11 14:53:44,994 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:53:45,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:53:45,002 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:53:45,112 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:53:45,112 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:53:45,113 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-04-11 14:53:45,113 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:53:45,113 INFO 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 14:53:45,113 INFO L182 omatonBuilderFactory]: Interpolants [9760#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 9761#(= 1 (select |#valid| |main_#t~mem11.base|)), 9747#true, 9748#false, 9749#(= 1 (select |#valid| main_~head~0.base)), 9750#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 9751#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 9752#(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)), 9753#(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)) (= (select |#valid| main_~head~0.base) 1)), 9754#(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))), 9755#(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)) (not (= main_~head~0.base |main_#t~malloc2.base|))), 9756#(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)))), 9757#(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)))), 9758#(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))), 9759#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))] [2018-04-11 14:53:45,113 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:53:45,113 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-11 14:53:45,113 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-11 14:53:45,113 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2018-04-11 14:53:45,113 INFO L87 Difference]: Start difference. First operand 242 states and 271 transitions. Second operand 15 states. [2018-04-11 14:53:45,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:53:45,637 INFO L93 Difference]: Finished difference Result 346 states and 381 transitions. [2018-04-11 14:53:45,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-04-11 14:53:45,637 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 45 [2018-04-11 14:53:45,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:53:45,638 INFO L225 Difference]: With dead ends: 346 [2018-04-11 14:53:45,638 INFO L226 Difference]: Without dead ends: 346 [2018-04-11 14:53:45,639 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=175, Invalid=755, Unknown=0, NotChecked=0, Total=930 [2018-04-11 14:53:45,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2018-04-11 14:53:45,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 250. [2018-04-11 14:53:45,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2018-04-11 14:53:45,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 281 transitions. [2018-04-11 14:53:45,641 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 281 transitions. Word has length 45 [2018-04-11 14:53:45,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:53:45,641 INFO L459 AbstractCegarLoop]: Abstraction has 250 states and 281 transitions. [2018-04-11 14:53:45,641 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-11 14:53:45,641 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 281 transitions. [2018-04-11 14:53:45,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-04-11 14:53:45,641 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:53:45,641 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] [2018-04-11 14:53:45,641 INFO L408 AbstractCegarLoop]: === Iteration 24 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:53:45,642 INFO L82 PathProgramCache]: Analyzing trace with hash -599206311, now seen corresponding path program 2 times [2018-04-11 14:53:45,642 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:53:45,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:53:45,651 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:53:45,809 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:53:45,809 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:53:45,809 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-04-11 14:53:45,809 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:53:45,809 INFO 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 14:53:45,810 INFO L182 omatonBuilderFactory]: Interpolants [10400#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem3.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 10401#(and (= 8 (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))), 10402#(and (= 8 (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))), 10403#(and (= 8 (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))), 10404#(and (= |main_#t~mem11.offset| 0) (= 8 (select |#length| |main_#t~mem11.base|))), 10390#true, 10391#false, 10392#(= 1 (select |#valid| main_~head~0.base)), 10393#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 10394#(and (= 0 |main_#t~malloc2.offset|) (= 8 (select |#length| |main_#t~malloc2.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 10395#(and (= 8 (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)), 10396#(and (= 8 (select |#length| |main_#t~mem3.base|)) (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)) (= (select |#valid| main_~head~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 10397#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (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))), 10398#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| main_~x~0.base)) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~head~0.base |main_#t~malloc2.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 10399#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (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)))] [2018-04-11 14:53:45,810 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:53:45,810 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-11 14:53:45,810 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-11 14:53:45,810 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2018-04-11 14:53:45,810 INFO L87 Difference]: Start difference. First operand 250 states and 281 transitions. Second operand 15 states. [2018-04-11 14:53:46,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:53:46,239 INFO L93 Difference]: Finished difference Result 342 states and 377 transitions. [2018-04-11 14:53:46,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-04-11 14:53:46,239 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 45 [2018-04-11 14:53:46,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:53:46,240 INFO L225 Difference]: With dead ends: 342 [2018-04-11 14:53:46,240 INFO L226 Difference]: Without dead ends: 342 [2018-04-11 14:53:46,240 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2018-04-11 14:53:46,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2018-04-11 14:53:46,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 242. [2018-04-11 14:53:46,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2018-04-11 14:53:46,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 271 transitions. [2018-04-11 14:53:46,243 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 271 transitions. Word has length 45 [2018-04-11 14:53:46,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:53:46,243 INFO L459 AbstractCegarLoop]: Abstraction has 242 states and 271 transitions. [2018-04-11 14:53:46,243 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-11 14:53:46,243 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 271 transitions. [2018-04-11 14:53:46,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-04-11 14:53:46,243 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:53:46,243 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 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 14:53:46,243 INFO L408 AbstractCegarLoop]: === Iteration 25 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:53:46,244 INFO L82 PathProgramCache]: Analyzing trace with hash -198428809, now seen corresponding path program 2 times [2018-04-11 14:53:46,244 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:53:46,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:53:46,252 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:53:46,520 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:53:46,520 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:53:46,520 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-04-11 14:53:46,520 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:53:46,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:53:46,521 INFO L182 omatonBuilderFactory]: Interpolants [11011#true, 11012#false, 11013#(= 1 (select |#valid| main_~head~0.base)), 11014#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 11015#(and (not (= main_~head~0.base |main_#t~malloc9.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 11016#(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)), 11017#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem10.base|) (not (= main_~head~0.base |main_#t~mem10.base|)) (= |main_#t~mem10.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 11018#(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))), 11019#(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)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~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)))), 11020#(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_~head~0.base (select (select |#memory_$Pointer$.base| 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)))), 11021#(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))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| 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)))), 11022#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem12.base|) |main_#t~mem12.offset|)) (not (= main_~x~0.base |main_#t~mem12.base|)) (= 0 (select (select |#memory_$Pointer$.base| |main_#t~mem12.base|) |main_#t~mem12.offset|))), 11023#(and (= 0 (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~next~0.base) main_~next~0.offset)) (not (= main_~x~0.base main_~next~0.base))), 11024#(and (= 0 (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~next~0.base) main_~next~0.offset))), 11025#(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))), 11026#(and (= |main_#t~mem12.offset| (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)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= |main_#t~mem12.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 11027#(and (= main_~next~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~next~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)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 11028#(and (= 0 main_~next~0.offset) (= 0 main_~next~0.base)), 11029#(and (= 0 main_~x~0.base) (= 0 main_~x~0.offset))] [2018-04-11 14:53:46,521 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:53:46,521 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-04-11 14:53:46,521 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-04-11 14:53:46,521 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2018-04-11 14:53:46,521 INFO L87 Difference]: Start difference. First operand 242 states and 271 transitions. Second operand 19 states. [2018-04-11 14:53:47,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:53:47,128 INFO L93 Difference]: Finished difference Result 311 states and 348 transitions. [2018-04-11 14:53:47,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-04-11 14:53:47,129 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 47 [2018-04-11 14:53:47,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:53:47,129 INFO L225 Difference]: With dead ends: 311 [2018-04-11 14:53:47,129 INFO L226 Difference]: Without dead ends: 311 [2018-04-11 14:53:47,130 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=154, Invalid=1106, Unknown=0, NotChecked=0, Total=1260 [2018-04-11 14:53:47,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2018-04-11 14:53:47,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 250. [2018-04-11 14:53:47,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2018-04-11 14:53:47,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 279 transitions. [2018-04-11 14:53:47,132 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 279 transitions. Word has length 47 [2018-04-11 14:53:47,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:53:47,132 INFO L459 AbstractCegarLoop]: Abstraction has 250 states and 279 transitions. [2018-04-11 14:53:47,132 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-04-11 14:53:47,132 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 279 transitions. [2018-04-11 14:53:47,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-04-11 14:53:47,133 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:53:47,133 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] [2018-04-11 14:53:47,133 INFO L408 AbstractCegarLoop]: === Iteration 26 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:53:47,133 INFO L82 PathProgramCache]: Analyzing trace with hash 439322798, now seen corresponding path program 1 times [2018-04-11 14:53:47,134 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:53:47,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:53:47,138 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:53:47,176 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 14:53:47,176 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:53:47,176 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2018-04-11 14:53:47,176 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:53:47,176 INFO 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 14:53:47,176 INFO L182 omatonBuilderFactory]: Interpolants [11632#(= 1 (select |#valid| main_~next~0.base)), 11633#(= 1 (select |#valid| main_~x~0.base)), 11625#true, 11626#false, 11627#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 11628#(= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)), 11629#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 11630#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 11631#(= 1 (select |#valid| |main_#t~mem12.base|))] [2018-04-11 14:53:47,176 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 14:53:47,176 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-11 14:53:47,177 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-11 14:53:47,177 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-04-11 14:53:47,177 INFO L87 Difference]: Start difference. First operand 250 states and 279 transitions. Second operand 9 states. [2018-04-11 14:53:47,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:53:47,697 INFO L93 Difference]: Finished difference Result 366 states and 401 transitions. [2018-04-11 14:53:47,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-11 14:53:47,698 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 47 [2018-04-11 14:53:47,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:53:47,699 INFO L225 Difference]: With dead ends: 366 [2018-04-11 14:53:47,699 INFO L226 Difference]: Without dead ends: 366 [2018-04-11 14:53:47,699 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2018-04-11 14:53:47,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2018-04-11 14:53:47,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 263. [2018-04-11 14:53:47,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2018-04-11 14:53:47,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 296 transitions. [2018-04-11 14:53:47,703 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 296 transitions. Word has length 47 [2018-04-11 14:53:47,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:53:47,703 INFO L459 AbstractCegarLoop]: Abstraction has 263 states and 296 transitions. [2018-04-11 14:53:47,703 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-11 14:53:47,703 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 296 transitions. [2018-04-11 14:53:47,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-04-11 14:53:47,704 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:53:47,704 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] [2018-04-11 14:53:47,704 INFO L408 AbstractCegarLoop]: === Iteration 27 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:53:47,704 INFO L82 PathProgramCache]: Analyzing trace with hash 439322799, now seen corresponding path program 1 times [2018-04-11 14:53:47,705 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:53:47,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:53:47,713 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:53:47,941 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:53:47,941 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:53:47,941 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-04-11 14:53:47,941 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:53:47,942 INFO 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 14:53:47,942 INFO L182 omatonBuilderFactory]: Interpolants [12288#(and (not (= |main_#t~mem3.base| main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 12289#(and (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 12290#(= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)), 12291#(and (= 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)), 12292#(and (= |main_#t~mem11.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))), 12293#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (<= 4 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 12294#(and (<= 4 (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))), 12295#(and (= |main_#t~mem12.offset| (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 (select |#length| |main_#t~mem12.base|))), 12296#(and (= main_~next~0.offset (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 (select |#length| main_~next~0.base))), 12297#(and (= 0 main_~next~0.offset) (<= 4 (select |#length| main_~next~0.base))), 12298#(and (<= 4 (select |#length| main_~x~0.base)) (= 0 main_~x~0.offset)), 12282#true, 12283#false, 12284#(= 1 (select |#valid| main_~head~0.base)), 12285#(and (= main_~x~0.offset main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base)) (= main_~x~0.base main_~head~0.base)), 12286#(and (= 0 |main_#t~malloc2.offset|) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= |main_#t~malloc2.base| main_~x~0.base))), 12287#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~x~0.base main_~head~0.base) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) main_~x~0.base)))] [2018-04-11 14:53:47,942 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:53:47,942 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-04-11 14:53:47,943 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-04-11 14:53:47,943 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2018-04-11 14:53:47,943 INFO L87 Difference]: Start difference. First operand 263 states and 296 transitions. Second operand 17 states. [2018-04-11 14:53:48,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:53:48,592 INFO L93 Difference]: Finished difference Result 387 states and 432 transitions. [2018-04-11 14:53:48,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-04-11 14:53:48,592 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 47 [2018-04-11 14:53:48,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:53:48,593 INFO L225 Difference]: With dead ends: 387 [2018-04-11 14:53:48,593 INFO L226 Difference]: Without dead ends: 387 [2018-04-11 14:53:48,593 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=768, Unknown=0, NotChecked=0, Total=930 [2018-04-11 14:53:48,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2018-04-11 14:53:48,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 273. [2018-04-11 14:53:48,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273 states. [2018-04-11 14:53:48,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 307 transitions. [2018-04-11 14:53:48,596 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 307 transitions. Word has length 47 [2018-04-11 14:53:48,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:53:48,596 INFO L459 AbstractCegarLoop]: Abstraction has 273 states and 307 transitions. [2018-04-11 14:53:48,597 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-04-11 14:53:48,597 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 307 transitions. [2018-04-11 14:53:48,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-04-11 14:53:48,597 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:53:48,597 INFO L355 BasicCegarLoop]: trace histogram [3, 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 14:53:48,597 INFO L408 AbstractCegarLoop]: === Iteration 28 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:53:48,598 INFO L82 PathProgramCache]: Analyzing trace with hash -1519038687, now seen corresponding path program 2 times [2018-04-11 14:53:48,598 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:53:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:53:48,607 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:53:48,810 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:53:48,811 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:53:48,811 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-04-11 14:53:48,811 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:53:48,811 INFO 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 14:53:48,811 INFO L182 omatonBuilderFactory]: Interpolants [12992#(and (= 8 (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)), 12993#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem10.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 12994#(and (= 8 (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))), 12995#(and (= 8 (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))), 12996#(and (= 8 (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))), 12997#(and (= |main_#t~mem12.offset| (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)) (= 8 (select |#length| |main_#t~mem12.base|))), 12998#(and (= main_~next~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 8 (select |#length| main_~next~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 12999#(and (= 0 main_~next~0.offset) (= 8 (select |#length| main_~next~0.base))), 13000#(and (= 8 (select |#length| main_~x~0.base)) (= 0 main_~x~0.offset)), 13001#(and (<= 0 main_~prev~0.offset) (<= main_~prev~0.offset 0) (= 8 (select |#length| main_~prev~0.base))), 12987#true, 12988#false, 12989#(= 1 (select |#valid| main_~head~0.base)), 12990#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 12991#(and (= 0 |main_#t~malloc9.offset|) (not (= main_~x~0.base |main_#t~malloc9.base|)) (= main_~x~0.offset main_~head~0.offset) (= 8 (select |#length| |main_#t~malloc9.base|)) (= main_~x~0.base main_~head~0.base))] [2018-04-11 14:53:48,811 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:53:48,812 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-11 14:53:48,812 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-11 14:53:48,812 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2018-04-11 14:53:48,812 INFO L87 Difference]: Start difference. First operand 273 states and 307 transitions. Second operand 15 states. [2018-04-11 14:53:49,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:53:49,364 INFO L93 Difference]: Finished difference Result 349 states and 390 transitions. [2018-04-11 14:53:49,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-11 14:53:49,364 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 50 [2018-04-11 14:53:49,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:53:49,365 INFO L225 Difference]: With dead ends: 349 [2018-04-11 14:53:49,365 INFO L226 Difference]: Without dead ends: 349 [2018-04-11 14:53:49,365 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=111, Invalid=591, Unknown=0, NotChecked=0, Total=702 [2018-04-11 14:53:49,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2018-04-11 14:53:49,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 289. [2018-04-11 14:53:49,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289 states. [2018-04-11 14:53:49,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 328 transitions. [2018-04-11 14:53:49,367 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 328 transitions. Word has length 50 [2018-04-11 14:53:49,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:53:49,368 INFO L459 AbstractCegarLoop]: Abstraction has 289 states and 328 transitions. [2018-04-11 14:53:49,368 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-11 14:53:49,368 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 328 transitions. [2018-04-11 14:53:49,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-04-11 14:53:49,368 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:53:49,368 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] [2018-04-11 14:53:49,368 INFO L408 AbstractCegarLoop]: === Iteration 29 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:53:49,368 INFO L82 PathProgramCache]: Analyzing trace with hash 1098735242, now seen corresponding path program 1 times [2018-04-11 14:53:49,369 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:53:49,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:53:49,374 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:53:49,510 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 14:53:49,510 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:53:49,510 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-04-11 14:53:49,510 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:53:49,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:53:49,511 INFO L182 omatonBuilderFactory]: Interpolants [13664#true, 13665#false, 13666#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 13667#(and (= |main_#t~mem4.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.offset main_~head~0.offset) (= |main_#t~mem4.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~x~0.base main_~head~0.base)), 13668#(or (and (not (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset) 0)) (= main_~x~0.base main_~head~0.base)) (not |main_#t~short6|) (and (not (= 0 (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))), 13669#(or (and (not (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset) 0)) (= main_~x~0.base main_~head~0.base)) (and (not (= 0 (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))), 13670#(or (not (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 0)) (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 13671#(or (not (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0))), 13672#(or (and (= |main_#t~mem12.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (not (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0))) (not (= 0 |main_#t~mem12.base|))), 13673#(or (not (= 0 main_~next~0.base)) (and (= main_~next~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (not (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0)))), 13674#(or (not (= main_~next~0.offset 0)) (not (= 0 main_~next~0.base))), 13675#(or (not (= main_~x~0.offset 0)) (not (= 0 main_~x~0.base)))] [2018-04-11 14:53:49,511 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 14:53:49,511 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-11 14:53:49,511 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-11 14:53:49,511 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2018-04-11 14:53:49,511 INFO L87 Difference]: Start difference. First operand 289 states and 328 transitions. Second operand 12 states. [2018-04-11 14:53:49,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:53:49,979 INFO L93 Difference]: Finished difference Result 342 states and 376 transitions. [2018-04-11 14:53:49,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-11 14:53:49,980 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 50 [2018-04-11 14:53:49,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:53:49,980 INFO L225 Difference]: With dead ends: 342 [2018-04-11 14:53:49,980 INFO L226 Difference]: Without dead ends: 342 [2018-04-11 14:53:49,981 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=116, Invalid=390, Unknown=0, NotChecked=0, Total=506 [2018-04-11 14:53:49,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2018-04-11 14:53:49,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 296. [2018-04-11 14:53:49,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2018-04-11 14:53:49,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 333 transitions. [2018-04-11 14:53:49,984 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 333 transitions. Word has length 50 [2018-04-11 14:53:49,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:53:49,984 INFO L459 AbstractCegarLoop]: Abstraction has 296 states and 333 transitions. [2018-04-11 14:53:49,984 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-11 14:53:49,984 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 333 transitions. [2018-04-11 14:53:49,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-04-11 14:53:49,985 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:53:49,985 INFO L355 BasicCegarLoop]: trace histogram [3, 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 14:53:49,985 INFO L408 AbstractCegarLoop]: === Iteration 30 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:53:49,985 INFO L82 PathProgramCache]: Analyzing trace with hash -1906167058, now seen corresponding path program 1 times [2018-04-11 14:53:49,986 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:53:49,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:53:49,993 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:53:50,017 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 14:53:50,017 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 14:53:50,017 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 14:53:50,017 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:53:50,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:53:50,018 INFO L182 omatonBuilderFactory]: Interpolants [14336#true, 14337#false, 14338#(or (not (= 0 main_~x~0.offset)) (not (= 0 main_~x~0.base))), 14339#(or (not (= 0 main_~prev~0.offset)) (not (= 0 main_~prev~0.base)))] [2018-04-11 14:53:50,018 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 14:53:50,018 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 14:53:50,018 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 14:53:50,018 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 14:53:50,018 INFO L87 Difference]: Start difference. First operand 296 states and 333 transitions. Second operand 4 states. [2018-04-11 14:53:50,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:53:50,063 INFO L93 Difference]: Finished difference Result 304 states and 338 transitions. [2018-04-11 14:53:50,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 14:53:50,064 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2018-04-11 14:53:50,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:53:50,064 INFO L225 Difference]: With dead ends: 304 [2018-04-11 14:53:50,064 INFO L226 Difference]: Without dead ends: 304 [2018-04-11 14:53:50,065 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 14:53:50,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2018-04-11 14:53:50,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 296. [2018-04-11 14:53:50,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2018-04-11 14:53:50,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 331 transitions. [2018-04-11 14:53:50,067 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 331 transitions. Word has length 53 [2018-04-11 14:53:50,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:53:50,067 INFO L459 AbstractCegarLoop]: Abstraction has 296 states and 331 transitions. [2018-04-11 14:53:50,067 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 14:53:50,067 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 331 transitions. [2018-04-11 14:53:50,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-04-11 14:53:50,067 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:53:50,067 INFO L355 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2018-04-11 14:53:50,068 INFO L408 AbstractCegarLoop]: === Iteration 31 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:53:50,068 INFO L82 PathProgramCache]: Analyzing trace with hash -1865738814, now seen corresponding path program 2 times [2018-04-11 14:53:50,068 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:53:50,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:53:50,076 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:53:50,422 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:53:50,422 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:53:50,422 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-04-11 14:53:50,422 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:53:50,422 INFO 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 14:53:50,423 INFO L182 omatonBuilderFactory]: Interpolants [14944#false, 14945#(= 1 (select |#valid| main_~head~0.base)), 14946#(and (= main_~x~0.offset main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base)) (= main_~x~0.base main_~head~0.base)), 14947#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= |main_#t~malloc2.base| main_~x~0.base))), 14948#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) main_~x~0.base))), 14949#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|) (not (= |main_#t~mem3.base| main_~head~0.base)) (= |main_#t~mem3.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 14950#(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))), 14951#(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)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~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)))), 14952#(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_~head~0.base (select (select |#memory_$Pointer$.base| 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)))), 14953#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (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_~head~0.offset))) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)))), 14954#(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))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| 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)))), 14955#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem12.base|) |main_#t~mem12.offset|)) (not (= main_~x~0.base |main_#t~mem12.base|)) (= 0 (select (select |#memory_$Pointer$.base| |main_#t~mem12.base|) |main_#t~mem12.offset|))), 14956#(and (= 0 (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~next~0.base) main_~next~0.offset)) (not (= main_~x~0.base main_~next~0.base))), 14957#(and (= 0 (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~next~0.base) main_~next~0.offset))), 14958#(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))), 14959#(and (= |main_#t~mem12.offset| (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)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= |main_#t~mem12.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 14960#(and (= main_~next~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~next~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)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 14961#(and (= 0 main_~next~0.offset) (= 0 main_~next~0.base)), 14962#(and (= 0 main_~x~0.base) (= 0 main_~x~0.offset)), 14943#true] [2018-04-11 14:53:50,423 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:53:50,423 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-11 14:53:50,423 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-11 14:53:50,423 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2018-04-11 14:53:50,423 INFO L87 Difference]: Start difference. First operand 296 states and 331 transitions. Second operand 20 states. [2018-04-11 14:53:51,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:53:51,205 INFO L93 Difference]: Finished difference Result 399 states and 440 transitions. [2018-04-11 14:53:51,205 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-04-11 14:53:51,206 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 53 [2018-04-11 14:53:51,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:53:51,206 INFO L225 Difference]: With dead ends: 399 [2018-04-11 14:53:51,206 INFO L226 Difference]: Without dead ends: 399 [2018-04-11 14:53:51,207 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=168, Invalid=1238, Unknown=0, NotChecked=0, Total=1406 [2018-04-11 14:53:51,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2018-04-11 14:53:51,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 320. [2018-04-11 14:53:51,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2018-04-11 14:53:51,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 356 transitions. [2018-04-11 14:53:51,209 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 356 transitions. Word has length 53 [2018-04-11 14:53:51,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:53:51,209 INFO L459 AbstractCegarLoop]: Abstraction has 320 states and 356 transitions. [2018-04-11 14:53:51,209 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-11 14:53:51,210 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 356 transitions. [2018-04-11 14:53:51,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-04-11 14:53:51,210 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:53:51,210 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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 14:53:51,210 INFO L408 AbstractCegarLoop]: === Iteration 32 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:53:51,210 INFO L82 PathProgramCache]: Analyzing trace with hash -533819111, now seen corresponding path program 4 times [2018-04-11 14:53:51,211 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:53:51,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:53:51,219 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:53:51,607 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:53:51,607 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:53:51,607 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-04-11 14:53:51,607 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:53:51,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:53:51,608 INFO L182 omatonBuilderFactory]: Interpolants [15718#true, 15719#false, 15720#(= 0 |main_#t~malloc0.offset|), 15721#(= 0 main_~head~0.offset), 15722#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base))), 15723#(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)), 15724#(and (= 0 main_~head~0.offset) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 15725#(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)), 15726#(and (= 0 main_~head~0.offset) (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)) (= (select |#valid| main_~head~0.base) 1)), 15727#(and (= 0 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))), 15728#(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_~x~0.base main_~head~0.base)) (not (= main_~head~0.base |main_#t~malloc2.base|))), 15729#(and (= 0 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)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 15730#(and (= 0 main_~head~0.offset) (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)))), 15731#(and (= 0 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))), 15732#(and (or (= |main_#t~malloc2.offset| main_~head~0.offset) (not (= main_~head~0.base |main_#t~malloc2.base|))) (or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~malloc2.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base))), 15733#(and (or (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) 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)))) (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))))), 15734#(and (or (= |main_#t~mem3.offset| main_~head~0.offset) (not (= main_~head~0.base |main_#t~mem3.base|))) (or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~mem3.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 15735#(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))), 15736#(or (and (= 1 (select |#valid| main_~x~0.base)) (= 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)))), 15737#(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)))), 15738#(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)))), 15739#(or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= |main_#t~mem4.offset| 0) (= |main_#t~mem4.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 15740#(or (not |main_#t~short6|) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 15741#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 15742#(= 1 (select |#valid| |main_#t~mem7.base|)), 15743#(= 1 (select |#valid| main_~x~0.base))] [2018-04-11 14:53:51,608 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:53:51,608 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-04-11 14:53:51,608 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-04-11 14:53:51,608 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=565, Unknown=0, NotChecked=0, Total=650 [2018-04-11 14:53:51,608 INFO L87 Difference]: Start difference. First operand 320 states and 356 transitions. Second operand 26 states. [2018-04-11 14:53:53,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:53:53,180 INFO L93 Difference]: Finished difference Result 474 states and 516 transitions. [2018-04-11 14:53:53,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-04-11 14:53:53,180 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 53 [2018-04-11 14:53:53,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:53:53,181 INFO L225 Difference]: With dead ends: 474 [2018-04-11 14:53:53,181 INFO L226 Difference]: Without dead ends: 474 [2018-04-11 14:53:53,181 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 935 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=788, Invalid=2994, Unknown=0, NotChecked=0, Total=3782 [2018-04-11 14:53:53,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2018-04-11 14:53:53,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 342. [2018-04-11 14:53:53,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2018-04-11 14:53:53,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 382 transitions. [2018-04-11 14:53:53,184 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 382 transitions. Word has length 53 [2018-04-11 14:53:53,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:53:53,184 INFO L459 AbstractCegarLoop]: Abstraction has 342 states and 382 transitions. [2018-04-11 14:53:53,184 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-04-11 14:53:53,184 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 382 transitions. [2018-04-11 14:53:53,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-04-11 14:53:53,185 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:53:53,185 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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 14:53:53,185 INFO L408 AbstractCegarLoop]: === Iteration 33 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:53:53,185 INFO L82 PathProgramCache]: Analyzing trace with hash -533819110, now seen corresponding path program 3 times [2018-04-11 14:53:53,185 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:53:53,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:53:53,192 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:53:53,656 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:53:53,656 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:53:53,656 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-04-11 14:53:53,657 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:53:53,657 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 14:53:53,657 INFO L182 omatonBuilderFactory]: Interpolants [16640#(and (= 0 main_~head~0.offset) (= 8 (select |#length| |main_#t~mem3.base|)) (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)) (= (select |#valid| main_~head~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 16641#(and (= 0 main_~head~0.offset) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (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))), 16642#(and (= 0 main_~head~0.offset) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| main_~x~0.base)) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~head~0.base |main_#t~malloc2.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 16643#(and (= 0 main_~head~0.offset) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (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))), 16644#(and (= 0 main_~head~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem3.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 16645#(and (= 0 main_~head~0.offset) (= 8 (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))), 16646#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~malloc2.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))), 16647#(and (= 8 (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) main_~head~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 16648#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~mem3.offset| main_~head~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 16649#(or (and (= 8 (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))), 16650#(or (and (= 8 (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)))), 16651#(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 (= 8 (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)))), 16652#(or (and (= 8 (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 (= |main_#t~mem4.offset| 0) (= |main_#t~mem4.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 16653#(or (and (= 8 (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))) (not |main_#t~short6|)), 16654#(and (= 8 (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))), 16655#(and (= 8 (select |#length| |main_#t~mem7.base|)) (= 0 |main_#t~mem7.offset|)), 16656#(and (= 8 (select |#length| main_~x~0.base)) (= main_~x~0.offset 0)), 16632#true, 16633#false, 16634#(= 0 |main_#t~malloc0.offset|), 16635#(= 0 main_~head~0.offset), 16636#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base))), 16637#(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)), 16638#(and (= 0 main_~head~0.offset) (= 0 |main_#t~malloc2.offset|) (= 8 (select |#length| |main_#t~malloc2.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 16639#(and (= 0 main_~head~0.offset) (= 8 (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))] [2018-04-11 14:53:53,657 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:53:53,657 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-04-11 14:53:53,657 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-04-11 14:53:53,657 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=510, Unknown=0, NotChecked=0, Total=600 [2018-04-11 14:53:53,658 INFO L87 Difference]: Start difference. First operand 342 states and 382 transitions. Second operand 25 states. [2018-04-11 14:53:55,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:53:55,403 INFO L93 Difference]: Finished difference Result 501 states and 547 transitions. [2018-04-11 14:53:55,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-04-11 14:53:55,403 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 53 [2018-04-11 14:53:55,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:53:55,404 INFO L225 Difference]: With dead ends: 501 [2018-04-11 14:53:55,404 INFO L226 Difference]: Without dead ends: 501 [2018-04-11 14:53:55,405 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 781 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=694, Invalid=2612, Unknown=0, NotChecked=0, Total=3306 [2018-04-11 14:53:55,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2018-04-11 14:53:55,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 335. [2018-04-11 14:53:55,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2018-04-11 14:53:55,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 374 transitions. [2018-04-11 14:53:55,408 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 374 transitions. Word has length 53 [2018-04-11 14:53:55,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:53:55,408 INFO L459 AbstractCegarLoop]: Abstraction has 335 states and 374 transitions. [2018-04-11 14:53:55,408 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-04-11 14:53:55,408 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 374 transitions. [2018-04-11 14:53:55,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-04-11 14:53:55,408 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:53:55,409 INFO L355 BasicCegarLoop]: trace histogram [3, 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 14:53:55,409 INFO L408 AbstractCegarLoop]: === Iteration 34 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:53:55,409 INFO L82 PathProgramCache]: Analyzing trace with hash 1044055590, now seen corresponding path program 1 times [2018-04-11 14:53:55,410 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:53:55,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:53:55,416 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:53:55,476 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:53:55,476 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:53:55,476 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-04-11 14:53:55,476 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:53:55,476 INFO 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 14:53:55,477 INFO L182 omatonBuilderFactory]: Interpolants [17568#(= 1 (select |#valid| |main_#t~mem14.base|)), 17559#true, 17560#false, 17561#(= main_~x~0.base main_~head~0.base), 17562#(and (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 17563#(= 1 (select |#valid| main_~head~0.base)), 17564#(= 1 (select |#valid| main_~x~0.base)), 17565#(= 1 (select |#valid| main_~prev~0.base)), 17566#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 17567#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~prev~0.base) main_~prev~0.offset)))] [2018-04-11 14:53:55,477 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:53:55,477 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-11 14:53:55,477 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-11 14:53:55,477 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-04-11 14:53:55,477 INFO L87 Difference]: Start difference. First operand 335 states and 374 transitions. Second operand 10 states. [2018-04-11 14:53:55,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:53:55,768 INFO L93 Difference]: Finished difference Result 453 states and 493 transitions. [2018-04-11 14:53:55,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-04-11 14:53:55,768 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 54 [2018-04-11 14:53:55,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:53:55,769 INFO L225 Difference]: With dead ends: 453 [2018-04-11 14:53:55,769 INFO L226 Difference]: Without dead ends: 453 [2018-04-11 14:53:55,769 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=174, Invalid=378, Unknown=0, NotChecked=0, Total=552 [2018-04-11 14:53:55,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2018-04-11 14:53:55,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 351. [2018-04-11 14:53:55,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2018-04-11 14:53:55,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 394 transitions. [2018-04-11 14:53:55,772 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 394 transitions. Word has length 54 [2018-04-11 14:53:55,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:53:55,772 INFO L459 AbstractCegarLoop]: Abstraction has 351 states and 394 transitions. [2018-04-11 14:53:55,772 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-11 14:53:55,772 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 394 transitions. [2018-04-11 14:53:55,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-04-11 14:53:55,772 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:53:55,772 INFO L355 BasicCegarLoop]: trace histogram [3, 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 14:53:55,773 INFO L408 AbstractCegarLoop]: === Iteration 35 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:53:55,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1044055591, now seen corresponding path program 1 times [2018-04-11 14:53:55,773 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:53:55,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:53:55,780 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:53:55,931 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:53:55,932 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:53:55,932 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-04-11 14:53:55,932 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:53:55,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:53:55,932 INFO L182 omatonBuilderFactory]: Interpolants [18402#true, 18403#false, 18404#(and (= 8 (select |#length| |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|)), 18405#(and (= 0 main_~head~0.offset) (= 8 (select |#length| main_~head~0.base))), 18406#(and (= 0 main_~head~0.offset) (= 8 (select |#length| main_~head~0.base)) (= 1 (select |#valid| main_~head~0.base))), 18407#(and (= 0 main_~head~0.offset) (= 8 (select |#length| main_~x~0.base)) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 18408#(and (= 0 main_~head~0.offset) (= 8 (select |#length| main_~x~0.base)) (= main_~x~0.base main_~head~0.base)), 18409#(and (= 8 (select |#length| main_~x~0.base)) (= 0 main_~x~0.offset)), 18410#(and (= 0 main_~prev~0.offset) (<= 8 (select |#length| main_~prev~0.base))), 18411#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 18412#(and (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~prev~0.base) main_~prev~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~prev~0.base) main_~prev~0.offset))), 18413#(and (= |main_#t~mem14.offset| 0) (<= 8 (select |#length| |main_#t~mem14.base|)))] [2018-04-11 14:53:55,933 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:53:55,933 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-11 14:53:55,933 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-11 14:53:55,933 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2018-04-11 14:53:55,933 INFO L87 Difference]: Start difference. First operand 351 states and 394 transitions. Second operand 12 states. [2018-04-11 14:53:56,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:53:56,345 INFO L93 Difference]: Finished difference Result 484 states and 539 transitions. [2018-04-11 14:53:56,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-11 14:53:56,345 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 54 [2018-04-11 14:53:56,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:53:56,346 INFO L225 Difference]: With dead ends: 484 [2018-04-11 14:53:56,346 INFO L226 Difference]: Without dead ends: 484 [2018-04-11 14:53:56,346 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2018-04-11 14:53:56,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2018-04-11 14:53:56,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 365. [2018-04-11 14:53:56,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2018-04-11 14:53:56,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 414 transitions. [2018-04-11 14:53:56,349 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 414 transitions. Word has length 54 [2018-04-11 14:53:56,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:53:56,349 INFO L459 AbstractCegarLoop]: Abstraction has 365 states and 414 transitions. [2018-04-11 14:53:56,349 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-11 14:53:56,349 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 414 transitions. [2018-04-11 14:53:56,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-04-11 14:53:56,350 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:53:56,350 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 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] [2018-04-11 14:53:56,350 INFO L408 AbstractCegarLoop]: === Iteration 36 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:53:56,350 INFO L82 PathProgramCache]: Analyzing trace with hash 1142343843, now seen corresponding path program 5 times [2018-04-11 14:53:56,351 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:53:56,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:53:56,362 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:53:56,609 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:53:56,609 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:53:56,609 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-04-11 14:53:56,609 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:53:56,610 INFO 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 14:53:56,610 INFO L182 omatonBuilderFactory]: Interpolants [19296#(and (= 1 (select |#valid| main_~x~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)))), 19297#(= 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)))), 19298#(= 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)))), 19299#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem7.base|) |main_#t~mem7.offset|))), 19300#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 19301#(= 1 (select |#valid| |main_#t~mem7.base|)), 19302#(= 1 (select |#valid| main_~x~0.base)), 19283#true, 19284#false, 19285#(= 1 (select |#valid| main_~head~0.base)), 19286#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 19287#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 19288#(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)), 19289#(and (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|) (= |main_#t~mem3.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1)), 19290#(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))), 19291#(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))), 19292#(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)) (not (= main_~head~0.base |main_#t~malloc2.base|)) (not (= main_~x~0.base |main_#t~malloc2.base|))), 19293#(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)))), 19294#(and (not (= main_~head~0.base |main_#t~mem3.base|)) (= |main_#t~mem3.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~mem3.base|))), 19295#(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))))] [2018-04-11 14:53:56,610 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 14:53:56,610 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-11 14:53:56,610 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-11 14:53:56,611 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2018-04-11 14:53:56,611 INFO L87 Difference]: Start difference. First operand 365 states and 414 transitions. Second operand 20 states. [2018-04-11 14:53:57,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:53:57,651 INFO L93 Difference]: Finished difference Result 473 states and 527 transitions. [2018-04-11 14:53:57,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-04-11 14:53:57,652 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 54 [2018-04-11 14:53:57,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:53:57,653 INFO L225 Difference]: With dead ends: 473 [2018-04-11 14:53:57,653 INFO L226 Difference]: Without dead ends: 473 [2018-04-11 14:53:57,653 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=207, Invalid=1199, Unknown=0, NotChecked=0, Total=1406 [2018-04-11 14:53:57,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2018-04-11 14:53:57,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 382. [2018-04-11 14:53:57,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2018-04-11 14:53:57,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 434 transitions. [2018-04-11 14:53:57,657 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 434 transitions. Word has length 54 [2018-04-11 14:53:57,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:53:57,657 INFO L459 AbstractCegarLoop]: Abstraction has 382 states and 434 transitions. [2018-04-11 14:53:57,657 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-11 14:53:57,657 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 434 transitions. [2018-04-11 14:53:57,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-04-11 14:53:57,658 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:53:57,658 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 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] [2018-04-11 14:53:57,658 INFO L408 AbstractCegarLoop]: === Iteration 37 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:53:57,658 INFO L82 PathProgramCache]: Analyzing trace with hash 1142343844, now seen corresponding path program 4 times [2018-04-11 14:53:57,658 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:53:57,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:53:57,665 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:53:57,942 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 14:53:57,943 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:53:57,943 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-04-11 14:53:57,943 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:53:57,943 INFO 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 14:53:57,943 INFO L182 omatonBuilderFactory]: Interpolants [20194#true, 20195#false, 20196#(= 1 (select |#valid| main_~head~0.base)), 20197#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 20198#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 20199#(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)), 20200#(and (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|) (= |main_#t~mem3.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1)), 20201#(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))), 20202#(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))), 20203#(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)) (= 0 |main_#t~malloc2.offset|) (= 8 (select |#length| |main_#t~malloc2.base|)) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~head~0.base |main_#t~malloc2.base|)) (not (= main_~x~0.base |main_#t~malloc2.base|))), 20204#(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 (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~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)))), 20205#(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))) (= 8 (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_~head~0.base |main_#t~mem3.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|))), 20206#(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))) (= 8 (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))), 20207#(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))) (= 8 (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))))), 20208#(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))) (= 8 (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))))), 20209#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem7.base|) |main_#t~mem7.offset|)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem7.base|) |main_#t~mem7.offset|)))), 20210#(and (= 8 (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))), 20211#(and (= 8 (select |#length| |main_#t~mem7.base|)) (= 0 |main_#t~mem7.offset|)), 20212#(and (= 8 (select |#length| main_~x~0.base)) (= main_~x~0.offset 0))] [2018-04-11 14:53:57,944 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 14:53:57,944 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-04-11 14:53:57,944 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-04-11 14:53:57,944 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2018-04-11 14:53:57,944 INFO L87 Difference]: Start difference. First operand 382 states and 434 transitions. Second operand 19 states. [2018-04-11 14:53:58,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:53:58,889 INFO L93 Difference]: Finished difference Result 502 states and 560 transitions. [2018-04-11 14:53:58,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-11 14:53:58,889 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 54 [2018-04-11 14:53:58,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:53:58,890 INFO L225 Difference]: With dead ends: 502 [2018-04-11 14:53:58,890 INFO L226 Difference]: Without dead ends: 502 [2018-04-11 14:53:58,891 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=149, Invalid=907, Unknown=0, NotChecked=0, Total=1056 [2018-04-11 14:53:58,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2018-04-11 14:53:58,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 375. [2018-04-11 14:53:58,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2018-04-11 14:53:58,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 426 transitions. [2018-04-11 14:53:58,893 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 426 transitions. Word has length 54 [2018-04-11 14:53:58,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:53:58,893 INFO L459 AbstractCegarLoop]: Abstraction has 375 states and 426 transitions. [2018-04-11 14:53:58,893 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-04-11 14:53:58,893 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 426 transitions. [2018-04-11 14:53:58,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-04-11 14:53:58,894 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:53:58,894 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 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 14:53:58,894 INFO L408 AbstractCegarLoop]: === Iteration 38 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:53:58,894 INFO L82 PathProgramCache]: Analyzing trace with hash -635493166, now seen corresponding path program 3 times [2018-04-11 14:53:58,894 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:53:58,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:53:58,901 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:53:59,510 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:53:59,510 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:53:59,510 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-04-11 14:53:59,510 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:53:59,510 INFO 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 14:53:59,511 INFO L182 omatonBuilderFactory]: Interpolants [21120#(= (select |#valid| 0) 0), 21121#(and (= 0 |main_#t~malloc0.offset|) (= (select |#valid| 0) 0)), 21122#(and (= 0 main_~head~0.offset) (= (select |#valid| 0) 0)), 21123#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base)) (= (select |#valid| 0) 0)), 21124#(and (= 0 main_~head~0.offset) (= main_~x~0.offset main_~head~0.offset) (= (select |#valid| 0) 0) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 21125#(and (= 0 main_~head~0.offset) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|)) (or (= 0 |main_#t~malloc2.offset|) (= 1 (select |#valid| 0)))), 21126#(and (= 0 main_~head~0.offset) (or (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= 1 (select |#valid| 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) (= (select |#valid| main_~head~0.base) 1) (= main_~x~0.base main_~head~0.base)), 21127#(and (= 0 main_~head~0.offset) (or (= 1 (select |#valid| 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (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)) (= (select |#valid| main_~head~0.base) 1)), 21128#(and (= 0 main_~head~0.offset) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (or (= 1 (select |#valid| 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base))), 21129#(and (= 0 main_~head~0.offset) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (or (= 1 (select |#valid| 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~head~0.base |main_#t~malloc2.base|))), 21130#(and (= 0 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)) (or (= 1 (select |#valid| 0)) (= 0 (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)))), 21131#(and (= 0 main_~head~0.offset) (or (= 1 (select |#valid| 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (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)))), 21132#(and (= 0 main_~head~0.offset) (or (= 1 (select |#valid| 0)) (= 0 (select (select |#memory_$Pointer$.offset| 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))), 21133#(and (or (= |main_#t~malloc2.base| main_~head~0.base) (= 1 (select |#valid| 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~malloc2.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~malloc2.offset| main_~head~0.offset) (not (= main_~x~0.base main_~head~0.base))), 21134#(and (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) main_~head~0.offset) (or (= 1 (select |#valid| 0)) (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~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))))), 21135#(and (= |main_#t~mem3.offset| main_~head~0.offset) (or (= |main_#t~mem3.base| main_~head~0.base) (= 1 (select |#valid| 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~mem3.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 21136#(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))), 21137#(or (and (= 1 (select |#valid| main_~x~0.base)) (= 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)) (or (= 1 (select |#valid| 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 21138#(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)))), 21139#(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)))), 21140#(or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= |main_#t~mem4.offset| 0) (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) |main_#t~mem4.base|) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 21141#(or (not |main_#t~short6|) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 21142#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 21143#(= 1 (select |#valid| |main_#t~mem11.base|)), 21118#true, 21119#false] [2018-04-11 14:53:59,511 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:53:59,511 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-04-11 14:53:59,511 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-04-11 14:53:59,511 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=580, Unknown=0, NotChecked=0, Total=650 [2018-04-11 14:53:59,511 INFO L87 Difference]: Start difference. First operand 375 states and 426 transitions. Second operand 26 states. [2018-04-11 14:54:01,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:01,729 INFO L93 Difference]: Finished difference Result 503 states and 558 transitions. [2018-04-11 14:54:01,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-04-11 14:54:01,730 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 54 [2018-04-11 14:54:01,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:01,731 INFO L225 Difference]: With dead ends: 503 [2018-04-11 14:54:01,731 INFO L226 Difference]: Without dead ends: 503 [2018-04-11 14:54:01,731 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 792 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=790, Invalid=3116, Unknown=0, NotChecked=0, Total=3906 [2018-04-11 14:54:01,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2018-04-11 14:54:01,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 383. [2018-04-11 14:54:01,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2018-04-11 14:54:01,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 436 transitions. [2018-04-11 14:54:01,734 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 436 transitions. Word has length 54 [2018-04-11 14:54:01,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:01,734 INFO L459 AbstractCegarLoop]: Abstraction has 383 states and 436 transitions. [2018-04-11 14:54:01,734 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-04-11 14:54:01,734 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 436 transitions. [2018-04-11 14:54:01,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-04-11 14:54:01,735 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:01,735 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 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 14:54:01,735 INFO L408 AbstractCegarLoop]: === Iteration 39 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:01,735 INFO L82 PathProgramCache]: Analyzing trace with hash -635493165, now seen corresponding path program 3 times [2018-04-11 14:54:01,735 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:01,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:01,746 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:02,103 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:02,103 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:54:02,103 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-04-11 14:54:02,103 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:02,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:02,104 INFO L182 omatonBuilderFactory]: Interpolants [22112#(and (= 0 main_~head~0.offset) (= 8 (select |#length| |main_#t~mem3.base|)) (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)) (= (select |#valid| main_~head~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 22113#(and (= 0 main_~head~0.offset) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (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))), 22114#(and (= 0 main_~head~0.offset) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| main_~x~0.base)) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~head~0.base |main_#t~malloc2.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 22115#(and (= 0 main_~head~0.offset) (= (select |#length| main_~x~0.base) 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))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 22116#(and (= 0 main_~head~0.offset) (not (= main_~head~0.base |main_#t~mem3.base|)) (<= 8 (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))), 22117#(and (= 0 main_~head~0.offset) (not (= main_~x~0.base main_~head~0.base)) (<= 8 (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))), 22118#(and (= |main_#t~malloc2.offset| main_~head~0.offset) (not (= main_~x~0.base main_~head~0.base)) (<= 8 (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))), 22119#(and (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) main_~head~0.offset) (<= 8 (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))), 22120#(and (= |main_#t~mem3.offset| main_~head~0.offset) (<= 8 (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))), 22121#(or (and (not (= main_~x~0.base main_~head~0.base)) (<= 8 (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_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base))), 22122#(or (and (<= 8 (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)))), 22123#(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| main_~x~0.base) main_~x~0.offset)) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))))), 22124#(or (and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))) (and (= |main_#t~mem8.base| 0) (= |main_#t~mem8.offset| 0))), 22125#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 22126#(and (= |main_#t~mem11.offset| 0) (<= 8 (select |#length| |main_#t~mem11.base|))), 22104#true, 22105#false, 22106#(= 0 |main_#t~malloc0.offset|), 22107#(= 0 main_~head~0.offset), 22108#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base))), 22109#(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)), 22110#(and (= 0 main_~head~0.offset) (= 0 |main_#t~malloc2.offset|) (= 8 (select |#length| |main_#t~malloc2.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 22111#(and (= 0 main_~head~0.offset) (= 8 (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))] [2018-04-11 14:54:02,104 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:02,104 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-04-11 14:54:02,104 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-04-11 14:54:02,104 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2018-04-11 14:54:02,104 INFO L87 Difference]: Start difference. First operand 383 states and 436 transitions. Second operand 23 states. [2018-04-11 14:54:03,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:03,388 INFO L93 Difference]: Finished difference Result 500 states and 555 transitions. [2018-04-11 14:54:03,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-04-11 14:54:03,388 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 54 [2018-04-11 14:54:03,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:03,389 INFO L225 Difference]: With dead ends: 500 [2018-04-11 14:54:03,389 INFO L226 Difference]: Without dead ends: 500 [2018-04-11 14:54:03,390 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 521 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=543, Invalid=1809, Unknown=0, NotChecked=0, Total=2352 [2018-04-11 14:54:03,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2018-04-11 14:54:03,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 383. [2018-04-11 14:54:03,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2018-04-11 14:54:03,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 435 transitions. [2018-04-11 14:54:03,394 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 435 transitions. Word has length 54 [2018-04-11 14:54:03,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:03,394 INFO L459 AbstractCegarLoop]: Abstraction has 383 states and 435 transitions. [2018-04-11 14:54:03,394 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-04-11 14:54:03,395 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 435 transitions. [2018-04-11 14:54:03,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-04-11 14:54:03,395 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:03,395 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] [2018-04-11 14:54:03,395 INFO L408 AbstractCegarLoop]: === Iteration 40 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:03,395 INFO L82 PathProgramCache]: Analyzing trace with hash -214049144, now seen corresponding path program 1 times [2018-04-11 14:54:03,396 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:03,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:03,402 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:03,596 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 14:54:03,597 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:54:03,597 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-04-11 14:54:03,597 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:03,597 INFO 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 14:54:03,597 INFO L182 omatonBuilderFactory]: Interpolants [23072#(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)))), 23073#(and (not (= main_~head~0.base |main_#t~mem3.base|)) (= |main_#t~mem3.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~mem3.base|))), 23074#(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)))), 23075#(and (= 1 (select |#valid| main_~x~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)))), 23076#(= 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)))), 23077#(= 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)))), 23078#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem7.base|) |main_#t~mem7.offset|))), 23079#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 23080#(= 1 (select |#valid| |main_#t~mem11.base|)), 23062#true, 23063#false, 23064#(= 1 (select |#valid| main_~head~0.base)), 23065#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 23066#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 23067#(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)), 23068#(and (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|) (= |main_#t~mem3.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1)), 23069#(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))), 23070#(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))), 23071#(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)) (not (= main_~head~0.base |main_#t~malloc2.base|)) (not (= main_~x~0.base |main_#t~malloc2.base|)))] [2018-04-11 14:54:03,597 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 14:54:03,597 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-04-11 14:54:03,597 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-04-11 14:54:03,597 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2018-04-11 14:54:03,598 INFO L87 Difference]: Start difference. First operand 383 states and 435 transitions. Second operand 19 states. [2018-04-11 14:54:04,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:04,437 INFO L93 Difference]: Finished difference Result 501 states and 560 transitions. [2018-04-11 14:54:04,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-04-11 14:54:04,437 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 55 [2018-04-11 14:54:04,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:04,438 INFO L225 Difference]: With dead ends: 501 [2018-04-11 14:54:04,438 INFO L226 Difference]: Without dead ends: 501 [2018-04-11 14:54:04,439 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=181, Invalid=1225, Unknown=0, NotChecked=0, Total=1406 [2018-04-11 14:54:04,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2018-04-11 14:54:04,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 391. [2018-04-11 14:54:04,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2018-04-11 14:54:04,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 445 transitions. [2018-04-11 14:54:04,441 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 445 transitions. Word has length 55 [2018-04-11 14:54:04,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:04,442 INFO L459 AbstractCegarLoop]: Abstraction has 391 states and 445 transitions. [2018-04-11 14:54:04,442 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-04-11 14:54:04,442 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 445 transitions. [2018-04-11 14:54:04,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-04-11 14:54:04,442 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:04,442 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] [2018-04-11 14:54:04,442 INFO L408 AbstractCegarLoop]: === Iteration 41 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:04,442 INFO L82 PathProgramCache]: Analyzing trace with hash -214049143, now seen corresponding path program 1 times [2018-04-11 14:54:04,443 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:04,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:04,448 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:04,739 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 14:54:04,739 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:54:04,739 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-04-11 14:54:04,739 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:04,739 INFO 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 14:54:04,739 INFO L182 omatonBuilderFactory]: Interpolants [24011#true, 24012#false, 24013#(= 1 (select |#valid| main_~head~0.base)), 24014#(and (= main_~x~0.offset main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base)) (= main_~x~0.base main_~head~0.base)), 24015#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= |main_#t~malloc2.base| main_~x~0.base))), 24016#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) main_~x~0.base))), 24017#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|) (not (= |main_#t~mem3.base| main_~head~0.base)) (= |main_#t~mem3.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1)), 24018#(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))), 24019#(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))), 24020#(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)) (= 0 |main_#t~malloc2.offset|) (= 8 (select |#length| |main_#t~malloc2.base|)) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~head~0.base |main_#t~malloc2.base|)) (not (= main_~x~0.base |main_#t~malloc2.base|))), 24021#(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 (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~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)))), 24022#(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))) (= 8 (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_~head~0.base |main_#t~mem3.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|))), 24023#(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))) (= 8 (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))), 24024#(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))) (= 8 (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))))), 24025#(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))) (= 8 (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))))), 24026#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem7.base|) |main_#t~mem7.offset|)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem7.base|) |main_#t~mem7.offset|)))), 24027#(and (= 8 (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))), 24028#(and (= 8 (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)) (= (select |#valid| main_~x~0.base) 1)), 24029#(and (= |main_#t~mem11.offset| 0) (= 8 (select |#length| |main_#t~mem11.base|)))] [2018-04-11 14:54:04,739 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 14:54:04,740 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-04-11 14:54:04,740 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-04-11 14:54:04,740 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2018-04-11 14:54:04,740 INFO L87 Difference]: Start difference. First operand 391 states and 445 transitions. Second operand 19 states. [2018-04-11 14:54:05,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:05,645 INFO L93 Difference]: Finished difference Result 500 states and 559 transitions. [2018-04-11 14:54:05,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-04-11 14:54:05,646 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 55 [2018-04-11 14:54:05,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:05,647 INFO L225 Difference]: With dead ends: 500 [2018-04-11 14:54:05,647 INFO L226 Difference]: Without dead ends: 500 [2018-04-11 14:54:05,647 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=153, Invalid=839, Unknown=0, NotChecked=0, Total=992 [2018-04-11 14:54:05,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2018-04-11 14:54:05,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 391. [2018-04-11 14:54:05,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2018-04-11 14:54:05,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 444 transitions. [2018-04-11 14:54:05,649 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 444 transitions. Word has length 55 [2018-04-11 14:54:05,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:05,650 INFO L459 AbstractCegarLoop]: Abstraction has 391 states and 444 transitions. [2018-04-11 14:54:05,650 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-04-11 14:54:05,650 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 444 transitions. [2018-04-11 14:54:05,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-04-11 14:54:05,650 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:05,650 INFO L355 BasicCegarLoop]: trace histogram [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] [2018-04-11 14:54:05,650 INFO L408 AbstractCegarLoop]: === Iteration 42 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:05,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1054619402, now seen corresponding path program 2 times [2018-04-11 14:54:05,651 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:05,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:05,656 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:05,834 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:05,834 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:54:05,834 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-04-11 14:54:05,834 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:05,834 INFO 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 14:54:05,835 INFO L182 omatonBuilderFactory]: Interpolants [24960#(and (= 0 main_~next~0.offset) (= 8 (select |#length| main_~next~0.base))), 24961#(and (= 8 (select |#length| main_~x~0.base)) (= 0 main_~x~0.offset)), 24962#(and (<= 0 main_~prev~0.offset) (<= main_~prev~0.offset 0) (= 8 (select |#length| main_~prev~0.base))), 24947#true, 24948#false, 24949#(= 1 (select |#valid| main_~head~0.base)), 24950#(and (= main_~x~0.offset main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base)) (= main_~x~0.base main_~head~0.base)), 24951#(and (= 0 |main_#t~malloc2.offset|) (= 8 (select |#length| |main_#t~malloc2.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= |main_#t~malloc2.base| main_~x~0.base))), 24952#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) 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) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) main_~x~0.base))), 24953#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= |main_#t~mem3.base| main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 24954#(and (= 8 (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))), 24955#(and (= 8 (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))), 24956#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) 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)), 24957#(and (= 8 (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))), 24958#(and (= |main_#t~mem12.offset| (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)) (= 8 (select |#length| |main_#t~mem12.base|))), 24959#(and (= main_~next~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 8 (select |#length| main_~next~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))] [2018-04-11 14:54:05,835 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:05,835 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-11 14:54:05,835 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-11 14:54:05,835 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2018-04-11 14:54:05,835 INFO L87 Difference]: Start difference. First operand 391 states and 444 transitions. Second operand 16 states. [2018-04-11 14:54:06,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:06,471 INFO L93 Difference]: Finished difference Result 483 states and 542 transitions. [2018-04-11 14:54:06,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-11 14:54:06,471 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 56 [2018-04-11 14:54:06,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:06,473 INFO L225 Difference]: With dead ends: 483 [2018-04-11 14:54:06,473 INFO L226 Difference]: Without dead ends: 483 [2018-04-11 14:54:06,473 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=130, Invalid=682, Unknown=0, NotChecked=0, Total=812 [2018-04-11 14:54:06,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2018-04-11 14:54:06,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 376. [2018-04-11 14:54:06,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2018-04-11 14:54:06,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 429 transitions. [2018-04-11 14:54:06,475 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 429 transitions. Word has length 56 [2018-04-11 14:54:06,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:06,475 INFO L459 AbstractCegarLoop]: Abstraction has 376 states and 429 transitions. [2018-04-11 14:54:06,475 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-11 14:54:06,475 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 429 transitions. [2018-04-11 14:54:06,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-04-11 14:54:06,476 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:06,476 INFO L355 BasicCegarLoop]: trace histogram [3, 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 14:54:06,476 INFO L408 AbstractCegarLoop]: === Iteration 43 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:06,476 INFO L82 PathProgramCache]: Analyzing trace with hash -1004012804, now seen corresponding path program 1 times [2018-04-11 14:54:06,477 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:06,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:06,480 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:06,501 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-04-11 14:54:06,501 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 14:54:06,502 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-04-11 14:54:06,502 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:06,502 INFO 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 14:54:06,502 INFO L182 omatonBuilderFactory]: Interpolants [25848#true, 25849#false, 25850#(= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)) |main_#t~mem13|), 25851#(= main_~t1~0 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4))), 25852#(and (not (= main_~t1~0 2)) (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)) main_~t1~0)), 25853#(not (= (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4)) 2)), 25854#(not (= |main_#t~mem16| 2))] [2018-04-11 14:54:06,502 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-04-11 14:54:06,502 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-11 14:54:06,502 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-11 14:54:06,502 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-04-11 14:54:06,502 INFO L87 Difference]: Start difference. First operand 376 states and 429 transitions. Second operand 7 states. [2018-04-11 14:54:06,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:06,618 INFO L93 Difference]: Finished difference Result 393 states and 445 transitions. [2018-04-11 14:54:06,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-11 14:54:06,618 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 60 [2018-04-11 14:54:06,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:06,619 INFO L225 Difference]: With dead ends: 393 [2018-04-11 14:54:06,619 INFO L226 Difference]: Without dead ends: 393 [2018-04-11 14:54:06,619 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-04-11 14:54:06,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2018-04-11 14:54:06,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 386. [2018-04-11 14:54:06,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2018-04-11 14:54:06,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 440 transitions. [2018-04-11 14:54:06,622 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 440 transitions. Word has length 60 [2018-04-11 14:54:06,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:06,622 INFO L459 AbstractCegarLoop]: Abstraction has 386 states and 440 transitions. [2018-04-11 14:54:06,622 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-11 14:54:06,622 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 440 transitions. [2018-04-11 14:54:06,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-04-11 14:54:06,623 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:06,623 INFO L355 BasicCegarLoop]: trace histogram [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 14:54:06,623 INFO L408 AbstractCegarLoop]: === Iteration 44 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:06,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1345919667, now seen corresponding path program 1 times [2018-04-11 14:54:06,623 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:06,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:06,629 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:06,795 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 14:54:06,795 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:54:06,795 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-04-11 14:54:06,795 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:06,796 INFO 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 14:54:06,796 INFO L182 omatonBuilderFactory]: Interpolants [26636#true, 26637#false, 26638#(= 1 (select |#valid| main_~head~0.base)), 26639#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 26640#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 26641#(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) (= (select |#valid| main_~head~0.base) 1) (= main_~x~0.base main_~head~0.base)), 26642#(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)) (= (select |#valid| main_~head~0.base) 1)), 26643#(and (not (= main_~head~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))), 26644#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1)), 26645#(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|))), 26646#(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))), 26647#(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))), 26648#(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))) (= (select |#valid| main_~x~0.base) 1)), 26649#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem10.base|))), 26650#(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))), 26651#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 26652#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 26653#(= 1 (select |#valid| |main_#t~mem12.base|)), 26654#(= 1 (select |#valid| main_~next~0.base)), 26655#(= 1 (select |#valid| main_~x~0.base))] [2018-04-11 14:54:06,796 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 14:54:06,796 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-11 14:54:06,796 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-11 14:54:06,796 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2018-04-11 14:54:06,796 INFO L87 Difference]: Start difference. First operand 386 states and 440 transitions. Second operand 20 states. [2018-04-11 14:54:07,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:07,507 INFO L93 Difference]: Finished difference Result 494 states and 551 transitions. [2018-04-11 14:54:07,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-04-11 14:54:07,507 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 60 [2018-04-11 14:54:07,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:07,508 INFO L225 Difference]: With dead ends: 494 [2018-04-11 14:54:07,508 INFO L226 Difference]: Without dead ends: 494 [2018-04-11 14:54:07,508 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=253, Invalid=1153, Unknown=0, NotChecked=0, Total=1406 [2018-04-11 14:54:07,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2018-04-11 14:54:07,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 408. [2018-04-11 14:54:07,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 408 states. [2018-04-11 14:54:07,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 463 transitions. [2018-04-11 14:54:07,511 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 463 transitions. Word has length 60 [2018-04-11 14:54:07,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:07,511 INFO L459 AbstractCegarLoop]: Abstraction has 408 states and 463 transitions. [2018-04-11 14:54:07,511 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-11 14:54:07,511 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 463 transitions. [2018-04-11 14:54:07,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-04-11 14:54:07,511 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:07,511 INFO L355 BasicCegarLoop]: trace histogram [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 14:54:07,511 INFO L408 AbstractCegarLoop]: === Iteration 45 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:07,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1345919666, now seen corresponding path program 1 times [2018-04-11 14:54:07,512 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:07,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:07,518 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:07,870 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 14:54:07,870 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:54:07,871 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-04-11 14:54:07,871 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:07,871 INFO 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 14:54:07,871 INFO L182 omatonBuilderFactory]: Interpolants [27594#true, 27595#false, 27596#(= 1 (select |#valid| main_~head~0.base)), 27597#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 27598#(and (= 8 (select |#length| |main_#t~malloc2.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 27599#(and (= 8 (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)), 27600#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (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)) (= (select |#valid| main_~head~0.base) 1)), 27601#(and (= 8 (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_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base))), 27602#(and (= 8 (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_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1)), 27603#(and (= 8 (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|)) (= |main_#t~mem7.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 27604#(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)) (= 8 (select |#length| main_~x~0.base)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base))), 27605#(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)) (= 8 (select |#length| main_~x~0.base)) (<= 0 main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base))), 27606#(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 8) (select |#length| main_~x~0.base)) (= 8 (select |#length| main_~x~0.base)) (<= 0 main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base))), 27607#(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|)) (<= (+ main_~x~0.offset 8) (select |#length| main_~x~0.base)) (= 8 (select |#length| main_~x~0.base)) (<= 0 main_~x~0.offset) (not (= main_~x~0.base main_~head~0.base))), 27608#(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 8) (select |#length| main_~x~0.base)) (= 8 (select |#length| main_~x~0.base)) (<= 0 main_~x~0.offset) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 27609#(and (= 8 (select |#length| (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) (<= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem10.base|))), 27610#(and (= 8 (select |#length| (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) (<= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base main_~head~0.base))), 27611#(and (= 8 (select |#length| (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) (<= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 27612#(and (<= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0) (= 8 (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))), 27613#(and (<= |main_#t~mem12.offset| 0) (<= 0 |main_#t~mem12.offset|) (= 8 (select |#length| |main_#t~mem12.base|))), 27614#(and (<= main_~next~0.offset 0) (= 8 (select |#length| main_~next~0.base)) (<= 0 main_~next~0.offset)), 27615#(and (<= main_~x~0.offset 0) (= 8 (select |#length| main_~x~0.base)) (<= 0 main_~x~0.offset))] [2018-04-11 14:54:07,871 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 14:54:07,871 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-04-11 14:54:07,871 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-04-11 14:54:07,871 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=388, Unknown=0, NotChecked=0, Total=462 [2018-04-11 14:54:07,871 INFO L87 Difference]: Start difference. First operand 408 states and 463 transitions. Second operand 22 states. [2018-04-11 14:54:08,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:08,896 INFO L93 Difference]: Finished difference Result 492 states and 553 transitions. [2018-04-11 14:54:08,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-04-11 14:54:08,896 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 60 [2018-04-11 14:54:08,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:08,897 INFO L225 Difference]: With dead ends: 492 [2018-04-11 14:54:08,897 INFO L226 Difference]: Without dead ends: 492 [2018-04-11 14:54:08,897 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=205, Invalid=1055, Unknown=0, NotChecked=0, Total=1260 [2018-04-11 14:54:08,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2018-04-11 14:54:08,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 408. [2018-04-11 14:54:08,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 408 states. [2018-04-11 14:54:08,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 463 transitions. [2018-04-11 14:54:08,900 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 463 transitions. Word has length 60 [2018-04-11 14:54:08,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:08,900 INFO L459 AbstractCegarLoop]: Abstraction has 408 states and 463 transitions. [2018-04-11 14:54:08,900 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-04-11 14:54:08,900 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 463 transitions. [2018-04-11 14:54:08,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-04-11 14:54:08,901 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:08,901 INFO L355 BasicCegarLoop]: trace histogram [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 14:54:08,901 INFO L408 AbstractCegarLoop]: === Iteration 46 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:08,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1689737537, now seen corresponding path program 1 times [2018-04-11 14:54:08,901 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:08,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:08,905 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:08,954 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:08,954 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:54:08,954 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-04-11 14:54:08,955 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:08,955 INFO 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 14:54:08,955 INFO L182 omatonBuilderFactory]: Interpolants [28544#true, 28545#false, 28546#(= main_~x~0.base main_~head~0.base), 28547#(and (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 28548#(= 1 (select |#valid| main_~head~0.base)), 28549#(= 1 (select |#valid| main_~x~0.base)), 28550#(= 1 (select |#valid| main_~prev~0.base)), 28551#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 28552#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~prev~0.base) main_~prev~0.offset))), 28553#(= 1 (select |#valid| |main_#t~mem18.base|))] [2018-04-11 14:54:08,955 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:08,955 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-11 14:54:08,955 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-11 14:54:08,955 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-04-11 14:54:08,955 INFO L87 Difference]: Start difference. First operand 408 states and 463 transitions. Second operand 10 states. [2018-04-11 14:54:09,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:09,289 INFO L93 Difference]: Finished difference Result 532 states and 585 transitions. [2018-04-11 14:54:09,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-04-11 14:54:09,290 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 62 [2018-04-11 14:54:09,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:09,291 INFO L225 Difference]: With dead ends: 532 [2018-04-11 14:54:09,291 INFO L226 Difference]: Without dead ends: 532 [2018-04-11 14:54:09,291 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=284, Unknown=0, NotChecked=0, Total=420 [2018-04-11 14:54:09,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2018-04-11 14:54:09,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 423. [2018-04-11 14:54:09,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 423 states. [2018-04-11 14:54:09,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 483 transitions. [2018-04-11 14:54:09,293 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 483 transitions. Word has length 62 [2018-04-11 14:54:09,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:09,294 INFO L459 AbstractCegarLoop]: Abstraction has 423 states and 483 transitions. [2018-04-11 14:54:09,294 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-11 14:54:09,294 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 483 transitions. [2018-04-11 14:54:09,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-04-11 14:54:09,294 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:09,294 INFO L355 BasicCegarLoop]: trace histogram [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 14:54:09,294 INFO L408 AbstractCegarLoop]: === Iteration 47 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:09,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1689737538, now seen corresponding path program 1 times [2018-04-11 14:54:09,295 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:09,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:09,302 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:09,478 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:09,478 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:54:09,478 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-04-11 14:54:09,479 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:09,479 INFO 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 14:54:09,479 INFO L182 omatonBuilderFactory]: Interpolants [29536#(and (= 0 main_~head~0.offset) (= 8 (select |#length| main_~head~0.base)) (= 1 (select |#valid| main_~head~0.base))), 29537#(and (= 0 main_~head~0.offset) (= 8 (select |#length| main_~x~0.base)) (= 1 (select |#valid| main_~head~0.base)) (= main_~x~0.base main_~head~0.base)), 29538#(and (= 0 main_~head~0.offset) (not (= |main_#t~malloc9.base| main_~x~0.base)) (= 8 (select |#length| main_~x~0.base)) (= main_~x~0.base main_~head~0.base)), 29539#(and (= 0 main_~head~0.offset) (= 8 (select |#length| main_~x~0.base)) (= main_~x~0.base main_~head~0.base) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) main_~x~0.base))), 29540#(and (= 8 (select |#length| main_~x~0.base)) (= 0 main_~x~0.offset)), 29541#(and (= 0 main_~prev~0.offset) (<= 8 (select |#length| main_~prev~0.base))), 29542#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 29543#(and (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~prev~0.base) main_~prev~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~prev~0.base) main_~prev~0.offset))), 29544#(and (= 0 main_~t2~0) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 29545#(and (<= 8 (select |#length| |main_#t~mem18.base|)) (= 0 |main_#t~mem18.offset|)), 29546#(and (<= 8 (select |#length| main_~x~0.base)) (= 0 main_~x~0.offset)), 29532#true, 29533#false, 29534#(and (= 8 (select |#length| |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|)), 29535#(and (= 0 main_~head~0.offset) (= 8 (select |#length| main_~head~0.base)))] [2018-04-11 14:54:09,479 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:09,479 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-11 14:54:09,479 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-11 14:54:09,479 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2018-04-11 14:54:09,479 INFO L87 Difference]: Start difference. First operand 423 states and 483 transitions. Second operand 15 states. [2018-04-11 14:54:10,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:10,077 INFO L93 Difference]: Finished difference Result 615 states and 688 transitions. [2018-04-11 14:54:10,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-04-11 14:54:10,078 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 62 [2018-04-11 14:54:10,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:10,079 INFO L225 Difference]: With dead ends: 615 [2018-04-11 14:54:10,079 INFO L226 Difference]: Without dead ends: 615 [2018-04-11 14:54:10,079 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=768, Unknown=0, NotChecked=0, Total=930 [2018-04-11 14:54:10,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2018-04-11 14:54:10,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 455. [2018-04-11 14:54:10,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 455 states. [2018-04-11 14:54:10,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 524 transitions. [2018-04-11 14:54:10,082 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 524 transitions. Word has length 62 [2018-04-11 14:54:10,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:10,082 INFO L459 AbstractCegarLoop]: Abstraction has 455 states and 524 transitions. [2018-04-11 14:54:10,082 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-11 14:54:10,082 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 524 transitions. [2018-04-11 14:54:10,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-04-11 14:54:10,083 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:10,083 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 14:54:10,083 INFO L408 AbstractCegarLoop]: === Iteration 48 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:10,083 INFO L82 PathProgramCache]: Analyzing trace with hash -619689412, now seen corresponding path program 3 times [2018-04-11 14:54:10,083 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:10,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:10,089 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:10,453 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 14:54:10,453 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:54:10,453 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-04-11 14:54:10,453 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:10,453 INFO 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 14:54:10,453 INFO L182 omatonBuilderFactory]: Interpolants [30656#(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))), 30657#(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))), 30658#(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)) (not (= main_~head~0.base |main_#t~malloc2.base|)) (not (= main_~x~0.base |main_#t~malloc2.base|))), 30659#(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_~x~0.base)) (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)))), 30660#(and (not (= main_~head~0.base |main_#t~mem3.base|)) (= |main_#t~mem3.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_~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) |main_#t~mem3.base|))), 30661#(and (not (= main_~head~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_~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)))), 30662#(and (= 1 (select |#valid| main_~x~0.base)) (not (= main_~head~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)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 30663#(and (not (= main_~head~0.base (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)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 30664#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (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_~head~0.offset))) (= main_~x~0.base main_~head~0.base)), 30665#(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)))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 30666#(and (not (= main_~x~0.base |main_#t~mem12.base|)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem12.base|) |main_#t~mem12.offset|)))), 30667#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset))) (not (= main_~x~0.base main_~next~0.base))), 30668#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset))), 30669#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 30670#(= 1 (select |#valid| |main_#t~mem12.base|)), 30671#(= 1 (select |#valid| main_~next~0.base)), 30672#(= 1 (select |#valid| main_~x~0.base)), 30649#true, 30650#false, 30651#(= 1 (select |#valid| main_~head~0.base)), 30652#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 30653#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 30654#(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) (= (select |#valid| main_~x~0.base) 1)), 30655#(and (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|) (= |main_#t~mem3.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1))] [2018-04-11 14:54:10,453 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 14:54:10,453 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-04-11 14:54:10,453 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-04-11 14:54:10,454 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2018-04-11 14:54:10,454 INFO L87 Difference]: Start difference. First operand 455 states and 524 transitions. Second operand 24 states. [2018-04-11 14:54:11,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:11,698 INFO L93 Difference]: Finished difference Result 670 states and 761 transitions. [2018-04-11 14:54:11,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-04-11 14:54:11,698 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 62 [2018-04-11 14:54:11,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:11,700 INFO L225 Difference]: With dead ends: 670 [2018-04-11 14:54:11,700 INFO L226 Difference]: Without dead ends: 670 [2018-04-11 14:54:11,700 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=274, Invalid=1982, Unknown=0, NotChecked=0, Total=2256 [2018-04-11 14:54:11,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2018-04-11 14:54:11,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 514. [2018-04-11 14:54:11,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 514 states. [2018-04-11 14:54:11,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 602 transitions. [2018-04-11 14:54:11,703 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 602 transitions. Word has length 62 [2018-04-11 14:54:11,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:11,704 INFO L459 AbstractCegarLoop]: Abstraction has 514 states and 602 transitions. [2018-04-11 14:54:11,704 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-04-11 14:54:11,704 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 602 transitions. [2018-04-11 14:54:11,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-04-11 14:54:11,704 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:11,704 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 14:54:11,704 INFO L408 AbstractCegarLoop]: === Iteration 49 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:11,704 INFO L82 PathProgramCache]: Analyzing trace with hash -619689411, now seen corresponding path program 2 times [2018-04-11 14:54:11,705 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:11,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:11,710 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:12,105 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 14:54:12,106 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:54:12,106 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-04-11 14:54:12,106 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:12,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:12,106 INFO L182 omatonBuilderFactory]: Interpolants [31905#true, 31906#false, 31907#(= 1 (select |#valid| main_~head~0.base)), 31908#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 31909#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 31910#(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) (= (select |#valid| main_~x~0.base) 1)), 31911#(and (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|) (= |main_#t~mem3.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1)), 31912#(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))), 31913#(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))), 31914#(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)) (= 0 |main_#t~malloc2.offset|) (= 8 (select |#length| |main_#t~malloc2.base|)) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~head~0.base |main_#t~malloc2.base|)) (not (= main_~x~0.base |main_#t~malloc2.base|))), 31915#(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)) (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))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~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)))), 31916#(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))) (= 8 (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_~head~0.base |main_#t~mem3.base|)) (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) |main_#t~mem3.base|))), 31917#(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))) (= 8 (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_~head~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_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base))), 31918#(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))) (= 8 (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_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 31919#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (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_~head~0.offset))) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)))), 31920#(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))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 8 (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))))), 31921#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem12.base|) |main_#t~mem12.offset|)) (not (= main_~x~0.base |main_#t~mem12.base|)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem12.base|) |main_#t~mem12.offset|)))), 31922#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~next~0.base) main_~next~0.offset)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset))) (not (= main_~x~0.base main_~next~0.base))), 31923#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~next~0.base) main_~next~0.offset)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset)))), 31924#(and (= 8 (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))), 31925#(and (= |main_#t~mem12.offset| (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)) (= 8 (select |#length| |main_#t~mem12.base|))), 31926#(and (= main_~next~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 8 (select |#length| main_~next~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 31927#(and (= 0 main_~next~0.offset) (= 8 (select |#length| main_~next~0.base))), 31928#(and (= 8 (select |#length| main_~x~0.base)) (= 0 main_~x~0.offset))] [2018-04-11 14:54:12,106 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 14:54:12,106 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-04-11 14:54:12,106 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-04-11 14:54:12,107 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2018-04-11 14:54:12,107 INFO L87 Difference]: Start difference. First operand 514 states and 602 transitions. Second operand 24 states. [2018-04-11 14:54:13,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:13,422 INFO L93 Difference]: Finished difference Result 668 states and 763 transitions. [2018-04-11 14:54:13,423 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-04-11 14:54:13,423 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 62 [2018-04-11 14:54:13,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:13,424 INFO L225 Difference]: With dead ends: 668 [2018-04-11 14:54:13,424 INFO L226 Difference]: Without dead ends: 668 [2018-04-11 14:54:13,424 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=192, Invalid=1530, Unknown=0, NotChecked=0, Total=1722 [2018-04-11 14:54:13,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2018-04-11 14:54:13,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 516. [2018-04-11 14:54:13,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 516 states. [2018-04-11 14:54:13,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 603 transitions. [2018-04-11 14:54:13,428 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 603 transitions. Word has length 62 [2018-04-11 14:54:13,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:13,429 INFO L459 AbstractCegarLoop]: Abstraction has 516 states and 603 transitions. [2018-04-11 14:54:13,429 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-04-11 14:54:13,429 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 603 transitions. [2018-04-11 14:54:13,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-04-11 14:54:13,429 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:13,429 INFO L355 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 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 14:54:13,429 INFO L408 AbstractCegarLoop]: === Iteration 50 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:13,430 INFO L82 PathProgramCache]: Analyzing trace with hash 712230291, now seen corresponding path program 6 times [2018-04-11 14:54:13,430 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:13,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:13,437 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:13,913 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:13,913 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:54:13,913 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2018-04-11 14:54:13,913 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:13,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:13,914 INFO L182 omatonBuilderFactory]: Interpolants [33152#(= 0 main_~head~0.offset), 33153#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base))), 33154#(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)), 33155#(and (= 0 main_~head~0.offset) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 33156#(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)), 33157#(and (= 0 main_~head~0.offset) (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)) (= (select |#valid| main_~head~0.base) 1)), 33158#(and (= 0 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))), 33159#(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_~x~0.base main_~head~0.base)) (not (= main_~head~0.base |main_#t~malloc2.base|))), 33160#(and (= 0 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)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 33161#(and (= 0 main_~head~0.offset) (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)))), 33162#(and (= 0 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))), 33163#(and (= 0 main_~head~0.offset) (or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~malloc2.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~malloc2.offset| main_~head~0.offset) (not (= main_~x~0.base main_~head~0.base))), 33164#(and (= 0 main_~head~0.offset) (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) main_~head~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))))), 33165#(and (= 0 main_~head~0.offset) (= |main_#t~mem3.offset| main_~head~0.offset) (or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~mem3.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 33166#(and (= main_~x~0.offset main_~head~0.offset) (or (and (= 0 main_~head~0.offset) (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))))) (= main_~x~0.base main_~head~0.base))), 33167#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (or (= main_~x~0.base main_~head~0.base) (and (= 0 main_~head~0.offset) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))))), 33168#(and (or (and (or (= |main_#t~malloc2.offset| main_~head~0.offset) (not (= main_~head~0.base |main_#t~malloc2.base|))) (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))) (= |main_#t~malloc2.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))) (= main_~x~0.base main_~head~0.base)) (= main_~x~0.offset main_~head~0.offset) (not (= main_~x~0.base |main_#t~malloc2.base|))), 33169#(and (or (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) 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)))) (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) (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))))), 33170#(and (or (= |main_#t~mem3.offset| main_~head~0.offset) (not (= main_~head~0.base |main_#t~mem3.base|))) (or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~mem3.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 33171#(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))) (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)))), 33172#(and (= 1 (select |#valid| main_~x~0.base)) (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))))), 33173#(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)))), 33174#(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)))), 33175#(or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= |main_#t~mem4.offset| 0) (= |main_#t~mem4.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 33176#(or (not |main_#t~short6|) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 33177#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 33178#(= 1 (select |#valid| |main_#t~mem7.base|)), 33179#(= 1 (select |#valid| main_~x~0.base)), 33149#true, 33150#false, 33151#(= 0 |main_#t~malloc0.offset|)] [2018-04-11 14:54:13,914 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:13,914 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-04-11 14:54:13,914 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-04-11 14:54:13,914 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=821, Unknown=0, NotChecked=0, Total=930 [2018-04-11 14:54:13,914 INFO L87 Difference]: Start difference. First operand 516 states and 603 transitions. Second operand 31 states. [2018-04-11 14:54:15,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:15,833 INFO L93 Difference]: Finished difference Result 678 states and 768 transitions. [2018-04-11 14:54:15,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2018-04-11 14:54:15,834 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 62 [2018-04-11 14:54:15,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:15,835 INFO L225 Difference]: With dead ends: 678 [2018-04-11 14:54:15,835 INFO L226 Difference]: Without dead ends: 678 [2018-04-11 14:54:15,836 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1399 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1033, Invalid=4369, Unknown=0, NotChecked=0, Total=5402 [2018-04-11 14:54:15,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2018-04-11 14:54:15,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 538. [2018-04-11 14:54:15,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2018-04-11 14:54:15,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 629 transitions. [2018-04-11 14:54:15,839 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 629 transitions. Word has length 62 [2018-04-11 14:54:15,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:15,839 INFO L459 AbstractCegarLoop]: Abstraction has 538 states and 629 transitions. [2018-04-11 14:54:15,839 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-04-11 14:54:15,839 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 629 transitions. [2018-04-11 14:54:15,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-04-11 14:54:15,839 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:15,839 INFO L355 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 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 14:54:15,839 INFO L408 AbstractCegarLoop]: === Iteration 51 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:15,840 INFO L82 PathProgramCache]: Analyzing trace with hash 712230292, now seen corresponding path program 5 times [2018-04-11 14:54:15,840 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:15,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:15,847 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:16,281 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:16,282 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:54:16,282 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-04-11 14:54:16,282 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:16,282 INFO 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 14:54:16,282 INFO L182 omatonBuilderFactory]: Interpolants [34496#(and (= 0 main_~head~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~head~0.base |main_#t~malloc2.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 34497#(and (= 0 main_~head~0.offset) (= 8 (select |#length| (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 (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))), 34498#(and (= 0 main_~head~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem3.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 34499#(and (= 0 main_~head~0.offset) (= 8 (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))), 34500#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~malloc2.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))), 34501#(and (= 8 (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) main_~head~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 34502#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~mem3.offset| main_~head~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 34503#(or (and (= 8 (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))), 34504#(or (and (= 8 (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)))), 34505#(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 (= 8 (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)))), 34506#(or (and (= 8 (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 (= |main_#t~mem4.offset| 0) (= |main_#t~mem4.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 34507#(or (and (= 8 (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))) (not |main_#t~short6|)), 34508#(and (= 8 (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))), 34509#(and (= 8 (select |#length| |main_#t~mem7.base|)) (= 0 |main_#t~mem7.offset|)), 34510#(and (= 8 (select |#length| main_~x~0.base)) (= main_~x~0.offset 0)), 34482#true, 34483#false, 34484#(= 0 |main_#t~malloc0.offset|), 34485#(= 0 main_~head~0.offset), 34486#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base))), 34487#(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)), 34488#(and (= 0 main_~head~0.offset) (= 0 |main_#t~malloc2.offset|) (= 8 (select |#length| |main_#t~malloc2.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 34489#(and (= 0 main_~head~0.offset) (= 8 (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)), 34490#(and (= 0 main_~head~0.offset) (= 8 (select |#length| |main_#t~mem3.base|)) (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)) (= (select |#valid| main_~head~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 34491#(and (= 0 main_~head~0.offset) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (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))), 34492#(and (= 0 main_~head~0.offset) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| main_~x~0.base)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~head~0.base |main_#t~malloc2.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 34493#(and (= 0 main_~head~0.offset) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (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))) (= (select |#valid| main_~x~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 34494#(and (= 0 main_~head~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (= (select |#valid| main_~head~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 34495#(and (= 0 main_~head~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (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) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))] [2018-04-11 14:54:16,282 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:16,283 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-04-11 14:54:16,283 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-04-11 14:54:16,283 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=693, Unknown=0, NotChecked=0, Total=812 [2018-04-11 14:54:16,283 INFO L87 Difference]: Start difference. First operand 538 states and 629 transitions. Second operand 29 states. [2018-04-11 14:54:17,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:17,763 INFO L93 Difference]: Finished difference Result 646 states and 734 transitions. [2018-04-11 14:54:17,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-04-11 14:54:17,763 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 62 [2018-04-11 14:54:17,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:17,764 INFO L225 Difference]: With dead ends: 646 [2018-04-11 14:54:17,764 INFO L226 Difference]: Without dead ends: 646 [2018-04-11 14:54:17,765 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 724 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=633, Invalid=2673, Unknown=0, NotChecked=0, Total=3306 [2018-04-11 14:54:17,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2018-04-11 14:54:17,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 538. [2018-04-11 14:54:17,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2018-04-11 14:54:17,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 629 transitions. [2018-04-11 14:54:17,768 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 629 transitions. Word has length 62 [2018-04-11 14:54:17,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:17,768 INFO L459 AbstractCegarLoop]: Abstraction has 538 states and 629 transitions. [2018-04-11 14:54:17,768 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-04-11 14:54:17,768 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 629 transitions. [2018-04-11 14:54:17,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-04-11 14:54:17,768 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:17,768 INFO L355 BasicCegarLoop]: trace histogram [3, 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] [2018-04-11 14:54:17,769 INFO L408 AbstractCegarLoop]: === Iteration 52 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:17,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1474915425, now seen corresponding path program 1 times [2018-04-11 14:54:17,769 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:17,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:17,774 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:17,823 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:17,823 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:54:17,823 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-04-11 14:54:17,823 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:17,823 INFO 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 14:54:17,823 INFO L182 omatonBuilderFactory]: Interpolants [35760#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 35761#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~prev~0.base) main_~prev~0.offset))), 35762#(= 1 (select |#valid| |main_#t~mem17.base|)), 35753#true, 35754#false, 35755#(= main_~x~0.base main_~head~0.base), 35756#(and (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 35757#(= 1 (select |#valid| main_~head~0.base)), 35758#(= 1 (select |#valid| main_~x~0.base)), 35759#(= 1 (select |#valid| main_~prev~0.base))] [2018-04-11 14:54:17,823 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:17,824 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-11 14:54:17,824 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-11 14:54:17,824 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-04-11 14:54:17,824 INFO L87 Difference]: Start difference. First operand 538 states and 629 transitions. Second operand 10 states. [2018-04-11 14:54:18,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:18,059 INFO L93 Difference]: Finished difference Result 632 states and 717 transitions. [2018-04-11 14:54:18,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-04-11 14:54:18,060 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 63 [2018-04-11 14:54:18,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:18,061 INFO L225 Difference]: With dead ends: 632 [2018-04-11 14:54:18,061 INFO L226 Difference]: Without dead ends: 632 [2018-04-11 14:54:18,061 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=136, Invalid=284, Unknown=0, NotChecked=0, Total=420 [2018-04-11 14:54:18,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2018-04-11 14:54:18,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 541. [2018-04-11 14:54:18,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 541 states. [2018-04-11 14:54:18,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 633 transitions. [2018-04-11 14:54:18,064 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 633 transitions. Word has length 63 [2018-04-11 14:54:18,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:18,064 INFO L459 AbstractCegarLoop]: Abstraction has 541 states and 633 transitions. [2018-04-11 14:54:18,064 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-11 14:54:18,065 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 633 transitions. [2018-04-11 14:54:18,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-04-11 14:54:18,065 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:18,065 INFO L355 BasicCegarLoop]: trace histogram [3, 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] [2018-04-11 14:54:18,065 INFO L408 AbstractCegarLoop]: === Iteration 53 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:18,065 INFO L82 PathProgramCache]: Analyzing trace with hash 1474915426, now seen corresponding path program 1 times [2018-04-11 14:54:18,066 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:18,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:18,070 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:18,165 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:18,166 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:54:18,166 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-04-11 14:54:18,166 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:18,166 INFO 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 14:54:18,166 INFO L182 omatonBuilderFactory]: Interpolants [36960#false, 36961#(= 0 |main_#t~malloc0.offset|), 36962#(= 0 main_~head~0.offset), 36963#(= 0 main_~x~0.offset), 36964#(= 0 main_~prev~0.offset), 36965#(= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)), 36966#(= 0 (select (select |#memory_$Pointer$.offset| main_~prev~0.base) main_~prev~0.offset)), 36967#(and (= |main_#t~mem14.offset| 0) (<= (select |#length| |main_#t~mem14.base|) (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))), 36968#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 36969#(and (= 0 |main_#t~mem17.offset|) (<= 8 (select |#length| |main_#t~mem17.base|))), 36970#(and (= main_~x~0.offset 0) (<= 8 (select |#length| main_~x~0.base))), 36959#true] [2018-04-11 14:54:18,166 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:18,166 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-11 14:54:18,166 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-11 14:54:18,166 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2018-04-11 14:54:18,167 INFO L87 Difference]: Start difference. First operand 541 states and 633 transitions. Second operand 12 states. [2018-04-11 14:54:18,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:18,642 INFO L93 Difference]: Finished difference Result 701 states and 796 transitions. [2018-04-11 14:54:18,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-04-11 14:54:18,642 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 63 [2018-04-11 14:54:18,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:18,644 INFO L225 Difference]: With dead ends: 701 [2018-04-11 14:54:18,644 INFO L226 Difference]: Without dead ends: 701 [2018-04-11 14:54:18,644 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=408, Invalid=1152, Unknown=0, NotChecked=0, Total=1560 [2018-04-11 14:54:18,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2018-04-11 14:54:18,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 592. [2018-04-11 14:54:18,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2018-04-11 14:54:18,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 706 transitions. [2018-04-11 14:54:18,648 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 706 transitions. Word has length 63 [2018-04-11 14:54:18,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:18,648 INFO L459 AbstractCegarLoop]: Abstraction has 592 states and 706 transitions. [2018-04-11 14:54:18,648 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-11 14:54:18,648 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 706 transitions. [2018-04-11 14:54:18,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-04-11 14:54:18,649 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:18,649 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] [2018-04-11 14:54:18,649 INFO L408 AbstractCegarLoop]: === Iteration 54 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:18,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1115169641, now seen corresponding path program 7 times [2018-04-11 14:54:18,650 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:18,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:18,657 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:19,221 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 14:54:19,221 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:54:19,221 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-04-11 14:54:19,221 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:19,221 INFO 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 14:54:19,222 INFO L182 omatonBuilderFactory]: Interpolants [38336#(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 |#valid| main_~x~0.base)) (or (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) 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) 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))), 38337#(and (= |main_#t~mem3.offset| main_~head~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (or (= |main_#t~mem3.base| main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 38338#(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)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))) (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base))) (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_~head~0.base) main_~head~0.offset)))), 38339#(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)) 0)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 38340#(and (or (= 1 (select |#valid| (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))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 38341#(and (= |main_#t~mem4.offset| 0) (or (and (= |main_#t~mem4.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) 0)))) (and (= |main_#t~mem4.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))))), 38342#(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)))) (not |main_#t~short6|)), 38343#(= 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)))), 38344#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem7.base|) |main_#t~mem7.offset|))), 38345#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 38346#(= 1 (select |#valid| |main_#t~mem7.base|)), 38347#(= 1 (select |#valid| main_~x~0.base)), 38320#true, 38321#false, 38322#(= 0 |main_#t~malloc0.offset|), 38323#(= 0 main_~head~0.offset), 38324#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base))), 38325#(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)), 38326#(and (= 0 main_~head~0.offset) (= main_~x~0.offset main_~head~0.offset) (= |main_#t~malloc2.offset| 0) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 38327#(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) (= 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)), 38328#(and (= 0 main_~head~0.offset) (= |main_#t~mem3.offset| 0) (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|) (= (select |#valid| main_~head~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 38329#(and (= 0 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 0) (= (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))), 38330#(and (= 0 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)) (= main_~x~0.offset 0) (= (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))), 38331#(and (= 0 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 0) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~head~0.base |main_#t~malloc2.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base |main_#t~malloc2.base|))), 38332#(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_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset 0) (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)), 38333#(and (= 0 main_~head~0.offset) (= |main_#t~mem3.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~head~0.base |main_#t~mem3.base|)) (= (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~mem3.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 38334#(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)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 38335#(and (or (= |main_#t~malloc2.base| main_~head~0.base) (= 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_~head~0.base) main_~head~0.offset))) (= |main_#t~malloc2.offset| main_~head~0.offset) (not (= main_~x~0.base main_~head~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~malloc2.base|)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))] [2018-04-11 14:54:19,222 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 14:54:19,222 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-04-11 14:54:19,222 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-04-11 14:54:19,222 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2018-04-11 14:54:19,222 INFO L87 Difference]: Start difference. First operand 592 states and 706 transitions. Second operand 28 states. [2018-04-11 14:54:21,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:21,271 INFO L93 Difference]: Finished difference Result 743 states and 855 transitions. [2018-04-11 14:54:21,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-04-11 14:54:21,271 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 63 [2018-04-11 14:54:21,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:21,272 INFO L225 Difference]: With dead ends: 743 [2018-04-11 14:54:21,272 INFO L226 Difference]: Without dead ends: 743 [2018-04-11 14:54:21,273 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1317 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=899, Invalid=4357, Unknown=0, NotChecked=0, Total=5256 [2018-04-11 14:54:21,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2018-04-11 14:54:21,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 609. [2018-04-11 14:54:21,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 609 states. [2018-04-11 14:54:21,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 726 transitions. [2018-04-11 14:54:21,290 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 726 transitions. Word has length 63 [2018-04-11 14:54:21,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:21,290 INFO L459 AbstractCegarLoop]: Abstraction has 609 states and 726 transitions. [2018-04-11 14:54:21,290 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-04-11 14:54:21,290 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 726 transitions. [2018-04-11 14:54:21,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-04-11 14:54:21,291 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:21,291 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] [2018-04-11 14:54:21,291 INFO L408 AbstractCegarLoop]: === Iteration 55 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:21,291 INFO L82 PathProgramCache]: Analyzing trace with hash 1115169642, now seen corresponding path program 6 times [2018-04-11 14:54:21,292 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:21,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:21,299 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:21,696 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 14:54:21,697 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:54:21,697 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-04-11 14:54:21,697 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:21,697 INFO 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 14:54:21,697 INFO L182 omatonBuilderFactory]: Interpolants [39808#(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))) (= 8 (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))) (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base))), 39809#(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 (= 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))) (= 8 (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)))))), 39810#(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))) (= 8 (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)))))), 39811#(or (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))) (= 8 (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))))) (and (= |main_#t~mem4.offset| 0) (= |main_#t~mem4.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 39812#(or (not |main_#t~short6|) (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))) (= 8 (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)))))), 39813#(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))) (= 8 (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))))), 39814#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem7.base|) |main_#t~mem7.offset|)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem7.base|) |main_#t~mem7.offset|)))), 39815#(and (= 8 (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))), 39816#(and (= 8 (select |#length| |main_#t~mem7.base|)) (= 0 |main_#t~mem7.offset|)), 39817#(and (= 8 (select |#length| main_~x~0.base)) (= main_~x~0.offset 0)), 39790#true, 39791#false, 39792#(= 0 |main_#t~malloc0.offset|), 39793#(= 0 main_~head~0.offset), 39794#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base))), 39795#(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)), 39796#(and (= 0 main_~head~0.offset) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 39797#(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)), 39798#(and (= 0 main_~head~0.offset) (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|) (= |main_#t~mem3.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1)), 39799#(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))), 39800#(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))), 39801#(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)) (= 0 |main_#t~malloc2.offset|) (= 8 (select |#length| |main_#t~malloc2.base|)) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~head~0.base |main_#t~malloc2.base|)) (not (= main_~x~0.base |main_#t~malloc2.base|))), 39802#(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)) (= 8 (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))) (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)), 39803#(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))) (= 8 (select |#length| |main_#t~mem3.base|)) (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (= |main_#t~mem3.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~mem3.base|))), 39804#(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))) (= 8 (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)))), 39805#(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))) (= 8 (select |#length| main_~x~0.base)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~malloc2.offset| main_~head~0.offset) (not (= main_~x~0.base main_~head~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~malloc2.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)))), 39806#(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 (= (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_~x~0.base) main_~x~0.offset) main_~head~0.offset) (= 8 (select |#length| main_~x~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)))), 39807#(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~mem3.offset| main_~head~0.offset) (= 8 (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~mem3.base|)))] [2018-04-11 14:54:21,697 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 14:54:21,697 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-04-11 14:54:21,697 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-04-11 14:54:21,698 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=670, Unknown=0, NotChecked=0, Total=756 [2018-04-11 14:54:21,698 INFO L87 Difference]: Start difference. First operand 609 states and 726 transitions. Second operand 28 states. [2018-04-11 14:54:23,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:23,608 INFO L93 Difference]: Finished difference Result 773 states and 890 transitions. [2018-04-11 14:54:23,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-04-11 14:54:23,608 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 63 [2018-04-11 14:54:23,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:23,609 INFO L225 Difference]: With dead ends: 773 [2018-04-11 14:54:23,609 INFO L226 Difference]: Without dead ends: 773 [2018-04-11 14:54:23,610 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 936 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=618, Invalid=3542, Unknown=0, NotChecked=0, Total=4160 [2018-04-11 14:54:23,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2018-04-11 14:54:23,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 602. [2018-04-11 14:54:23,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 602 states. [2018-04-11 14:54:23,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 718 transitions. [2018-04-11 14:54:23,613 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 718 transitions. Word has length 63 [2018-04-11 14:54:23,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:23,613 INFO L459 AbstractCegarLoop]: Abstraction has 602 states and 718 transitions. [2018-04-11 14:54:23,613 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-04-11 14:54:23,613 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 718 transitions. [2018-04-11 14:54:23,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-04-11 14:54:23,614 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:23,614 INFO L355 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 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 14:54:23,614 INFO L408 AbstractCegarLoop]: === Iteration 56 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:23,614 INFO L82 PathProgramCache]: Analyzing trace with hash -662667368, now seen corresponding path program 4 times [2018-04-11 14:54:23,615 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:23,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:23,622 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:24,126 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:24,126 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:54:24,126 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-04-11 14:54:24,126 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:24,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:24,127 INFO L182 omatonBuilderFactory]: Interpolants [41280#(and (= 0 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))), 41281#(and (= 0 main_~head~0.offset) (or (= |main_#t~malloc2.offset| main_~head~0.offset) (not (= main_~head~0.base |main_#t~malloc2.base|))) (or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~malloc2.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base))), 41282#(and (= 0 main_~head~0.offset) (or (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) 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)))) (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))))), 41283#(and (= 0 main_~head~0.offset) (or (= |main_#t~mem3.offset| main_~head~0.offset) (not (= main_~head~0.base |main_#t~mem3.base|))) (or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~mem3.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 41284#(or (and (= 0 main_~head~0.offset) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)) (and (= 0 main_~head~0.offset) (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)))), 41285#(or (and (= |main_#t~malloc2.base| main_~head~0.base) (= |main_#t~malloc2.offset| main_~head~0.offset)) (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))) (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))) (= |main_#t~malloc2.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~malloc2.offset| main_~head~0.offset) (not (= main_~x~0.base main_~head~0.base)))), 41286#(or (and (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) main_~head~0.offset) (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) main_~head~0.base)) (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)) (and (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) main_~head~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)))))), 41287#(or (and (= |main_#t~mem3.base| main_~head~0.base) (= |main_#t~mem3.offset| main_~head~0.offset)) (and (= |main_#t~mem3.offset| main_~head~0.offset) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))) (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)))), 41288#(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))) (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)))), 41289#(or (and (= 1 (select |#valid| main_~x~0.base)) (= 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)))), 41290#(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)))), 41291#(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)))), 41292#(or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= |main_#t~mem4.offset| 0) (= |main_#t~mem4.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 41293#(or (not |main_#t~short6|) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 41294#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 41295#(= 1 (select |#valid| |main_#t~mem11.base|)), 41267#true, 41268#false, 41269#(= 0 |main_#t~malloc0.offset|), 41270#(= 0 main_~head~0.offset), 41271#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base))), 41272#(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)), 41273#(and (= 0 main_~head~0.offset) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 41274#(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)), 41275#(and (= 0 main_~head~0.offset) (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)) (= (select |#valid| main_~head~0.base) 1)), 41276#(and (= 0 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))), 41277#(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_~x~0.base main_~head~0.base)) (not (= main_~head~0.base |main_#t~malloc2.base|))), 41278#(and (= 0 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)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 41279#(and (= 0 main_~head~0.offset) (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))))] [2018-04-11 14:54:24,127 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:24,127 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-04-11 14:54:24,127 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-04-11 14:54:24,127 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=710, Unknown=0, NotChecked=0, Total=812 [2018-04-11 14:54:24,127 INFO L87 Difference]: Start difference. First operand 602 states and 718 transitions. Second operand 29 states. [2018-04-11 14:54:26,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:26,282 INFO L93 Difference]: Finished difference Result 667 states and 773 transitions. [2018-04-11 14:54:26,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-04-11 14:54:26,282 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 63 [2018-04-11 14:54:26,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:26,283 INFO L225 Difference]: With dead ends: 667 [2018-04-11 14:54:26,284 INFO L226 Difference]: Without dead ends: 667 [2018-04-11 14:54:26,284 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1142 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=967, Invalid=3863, Unknown=0, NotChecked=0, Total=4830 [2018-04-11 14:54:26,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2018-04-11 14:54:26,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 602. [2018-04-11 14:54:26,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 602 states. [2018-04-11 14:54:26,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 717 transitions. [2018-04-11 14:54:26,287 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 717 transitions. Word has length 63 [2018-04-11 14:54:26,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:26,287 INFO L459 AbstractCegarLoop]: Abstraction has 602 states and 717 transitions. [2018-04-11 14:54:26,287 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-04-11 14:54:26,287 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 717 transitions. [2018-04-11 14:54:26,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-04-11 14:54:26,288 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:26,288 INFO L355 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 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 14:54:26,288 INFO L408 AbstractCegarLoop]: === Iteration 57 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:26,288 INFO L82 PathProgramCache]: Analyzing trace with hash -662667367, now seen corresponding path program 4 times [2018-04-11 14:54:26,289 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:26,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:26,297 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:26,788 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:26,788 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:54:26,788 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-04-11 14:54:26,788 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:26,788 INFO 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 14:54:26,789 INFO L182 omatonBuilderFactory]: Interpolants [42647#true, 42648#false, 42649#(= 0 |main_#t~malloc0.offset|), 42650#(= 0 main_~head~0.offset), 42651#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base))), 42652#(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)), 42653#(and (= 0 main_~head~0.offset) (= 0 |main_#t~malloc2.offset|) (= 8 (select |#length| |main_#t~malloc2.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 42654#(and (= 0 main_~head~0.offset) (= 8 (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)), 42655#(and (= 0 main_~head~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (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)) (= (select |#valid| main_~head~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 42656#(and (= 0 main_~head~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| 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_~head~0.base) main_~head~0.offset))), 42657#(and (= 0 main_~head~0.offset) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| main_~x~0.base)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~head~0.base |main_#t~malloc2.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 42658#(and (= 0 main_~head~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| 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_~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)), 42659#(and (= 0 main_~head~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (= (select |#valid| main_~head~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 42660#(and (= 0 main_~head~0.offset) (= 8 (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))), 42661#(and (= 0 main_~head~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~head~0.base |main_#t~malloc2.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 42662#(and (= 0 main_~head~0.offset) (= 8 (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))), 42663#(and (= 0 main_~head~0.offset) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem3.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 42664#(and (= 0 main_~head~0.offset) (= 8 (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))), 42665#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~malloc2.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))), 42666#(and (= 8 (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) main_~head~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 42667#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~mem3.offset| main_~head~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 42668#(or (and (= main_~x~0.offset main_~head~0.offset) (= main_~head~0.base main_~x~0.base)) (and (= 8 (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)))), 42669#(or (and (= 8 (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_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~head~0.base main_~x~0.base) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)))), 42670#(or (and (= 8 (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)))), 42671#(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 (= 8 (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)))), 42672#(or (and (= |main_#t~mem4.offset| 0) (= |main_#t~mem4.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= |main_#t~mem4.offset| 0) (= |main_#t~mem4.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))))), 42673#(or (and (= 8 (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))) (not |main_#t~short6|)), 42674#(and (= 8 (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))), 42675#(and (= |main_#t~mem11.offset| 0) (= 8 (select |#length| |main_#t~mem11.base|)))] [2018-04-11 14:54:26,789 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:26,789 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-04-11 14:54:26,789 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-04-11 14:54:26,789 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=680, Unknown=0, NotChecked=0, Total=812 [2018-04-11 14:54:26,789 INFO L87 Difference]: Start difference. First operand 602 states and 717 transitions. Second operand 29 states. [2018-04-11 14:54:28,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:28,212 INFO L93 Difference]: Finished difference Result 676 states and 784 transitions. [2018-04-11 14:54:28,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-04-11 14:54:28,212 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 63 [2018-04-11 14:54:28,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:28,214 INFO L225 Difference]: With dead ends: 676 [2018-04-11 14:54:28,214 INFO L226 Difference]: Without dead ends: 676 [2018-04-11 14:54:28,214 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 772 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=708, Invalid=2714, Unknown=0, NotChecked=0, Total=3422 [2018-04-11 14:54:28,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2018-04-11 14:54:28,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 594. [2018-04-11 14:54:28,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 594 states. [2018-04-11 14:54:28,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 707 transitions. [2018-04-11 14:54:28,217 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 707 transitions. Word has length 63 [2018-04-11 14:54:28,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:28,217 INFO L459 AbstractCegarLoop]: Abstraction has 594 states and 707 transitions. [2018-04-11 14:54:28,218 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-04-11 14:54:28,218 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 707 transitions. [2018-04-11 14:54:28,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-04-11 14:54:28,218 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:28,218 INFO L355 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 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] [2018-04-11 14:54:28,218 INFO L408 AbstractCegarLoop]: === Iteration 58 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:28,219 INFO L82 PathProgramCache]: Analyzing trace with hash 1242560115, now seen corresponding path program 8 times [2018-04-11 14:54:28,219 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:28,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:28,224 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:28,495 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 18 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:28,496 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:54:28,496 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-04-11 14:54:28,496 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:28,496 INFO 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 14:54:28,496 INFO L182 omatonBuilderFactory]: Interpolants [44006#true, 44007#false, 44008#(= 1 (select |#valid| main_~head~0.base)), 44009#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 44010#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 44011#(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)), 44012#(and (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|) (= |main_#t~mem3.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1)), 44013#(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))), 44014#(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))), 44015#(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)) (not (= main_~head~0.base |main_#t~malloc2.base|)) (not (= main_~x~0.base |main_#t~malloc2.base|))), 44016#(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)))), 44017#(and (= |main_#t~mem3.offset| (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_~head~0.base |main_#t~mem3.base|)) (= |main_#t~mem3.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~mem3.base|))), 44018#(and (= main_~x~0.offset (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))) (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)))), 44019#(and (= 0 (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))) (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| (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)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 44020#(and (= 0 (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))) (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| (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))))), 44021#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem7.base|) |main_#t~mem7.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem7.base|) |main_#t~mem7.offset|))) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem7.base|) |main_#t~mem7.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem7.base|) |main_#t~mem7.offset|)))), 44022#(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)))), 44023#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem7.base|) |main_#t~mem7.offset|)) (= 0 (select (select |#memory_$Pointer$.base| |main_#t~mem7.base|) |main_#t~mem7.offset|))), 44024#(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))), 44025#(and (= |main_#t~mem4.offset| 0) (= |main_#t~mem4.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 44026#(not |main_#t~short6|)] [2018-04-11 14:54:28,496 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 18 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:28,497 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-11 14:54:28,497 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-11 14:54:28,497 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2018-04-11 14:54:28,497 INFO L87 Difference]: Start difference. First operand 594 states and 707 transitions. Second operand 21 states. [2018-04-11 14:54:29,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:29,715 INFO L93 Difference]: Finished difference Result 611 states and 710 transitions. [2018-04-11 14:54:29,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-04-11 14:54:29,716 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 64 [2018-04-11 14:54:29,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:29,717 INFO L225 Difference]: With dead ends: 611 [2018-04-11 14:54:29,717 INFO L226 Difference]: Without dead ends: 611 [2018-04-11 14:54:29,717 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=237, Invalid=1925, Unknown=0, NotChecked=0, Total=2162 [2018-04-11 14:54:29,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2018-04-11 14:54:29,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 564. [2018-04-11 14:54:29,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 564 states. [2018-04-11 14:54:29,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 663 transitions. [2018-04-11 14:54:29,720 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 663 transitions. Word has length 64 [2018-04-11 14:54:29,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:29,720 INFO L459 AbstractCegarLoop]: Abstraction has 564 states and 663 transitions. [2018-04-11 14:54:29,720 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-11 14:54:29,720 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 663 transitions. [2018-04-11 14:54:29,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-04-11 14:54:29,720 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:29,721 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2018-04-11 14:54:29,721 INFO L408 AbstractCegarLoop]: === Iteration 59 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:29,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1056449406, now seen corresponding path program 2 times [2018-04-11 14:54:29,721 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:29,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:29,727 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:30,092 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:30,092 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:54:30,092 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-04-11 14:54:30,092 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:30,093 INFO 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 14:54:30,093 INFO L182 omatonBuilderFactory]: Interpolants [45254#true, 45255#false, 45256#(= 0 |main_#t~malloc0.offset|), 45257#(= 0 main_~head~0.offset), 45258#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base))), 45259#(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)), 45260#(and (= 0 main_~head~0.offset) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 45261#(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)), 45262#(and (= 0 main_~head~0.offset) (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|) (= |main_#t~mem3.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1)), 45263#(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))), 45264#(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))), 45265#(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 main_~head~0.base)) (not (= main_~head~0.base |main_#t~malloc2.base|)) (not (= main_~x~0.base |main_#t~malloc2.base|))), 45266#(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)), 45267#(and (= 0 main_~head~0.offset) (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (= |main_#t~mem3.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~mem3.base|))), 45268#(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)))), 45269#(and (or (= |main_#t~malloc2.offset| main_~head~0.offset) (not (= main_~head~0.base |main_#t~malloc2.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)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~malloc2.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)))), 45270#(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_$Pointer$.offset| main_~x~0.base) 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)))) (= 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))))), 45271#(and (or (= |main_#t~mem3.offset| main_~head~0.offset) (not (= main_~head~0.base |main_#t~mem3.base|))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.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))))), 45272#(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)) (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))), 45273#(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))))), 45274#(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)))), 45275#(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 (= |main_#t~mem4.offset| 0) (= |main_#t~mem4.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 45276#(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)))) (not |main_#t~short6|)), 45277#(= 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)))), 45278#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem7.base|) |main_#t~mem7.offset|))), 45279#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 45280#(= 1 (select |#valid| |main_#t~mem11.base|))] [2018-04-11 14:54:30,093 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:30,093 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-04-11 14:54:30,093 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-04-11 14:54:30,093 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=625, Unknown=0, NotChecked=0, Total=702 [2018-04-11 14:54:30,093 INFO L87 Difference]: Start difference. First operand 564 states and 663 transitions. Second operand 27 states. [2018-04-11 14:54:31,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:31,945 INFO L93 Difference]: Finished difference Result 718 states and 819 transitions. [2018-04-11 14:54:31,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-04-11 14:54:31,946 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 64 [2018-04-11 14:54:31,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:31,947 INFO L225 Difference]: With dead ends: 718 [2018-04-11 14:54:31,947 INFO L226 Difference]: Without dead ends: 718 [2018-04-11 14:54:31,947 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1100 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=736, Invalid=3956, Unknown=0, NotChecked=0, Total=4692 [2018-04-11 14:54:31,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2018-04-11 14:54:31,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 572. [2018-04-11 14:54:31,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 572 states. [2018-04-11 14:54:31,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 673 transitions. [2018-04-11 14:54:31,950 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 673 transitions. Word has length 64 [2018-04-11 14:54:31,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:31,950 INFO L459 AbstractCegarLoop]: Abstraction has 572 states and 673 transitions. [2018-04-11 14:54:31,950 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-04-11 14:54:31,950 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 673 transitions. [2018-04-11 14:54:31,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-04-11 14:54:31,951 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:31,951 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2018-04-11 14:54:31,951 INFO L408 AbstractCegarLoop]: === Iteration 60 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:31,951 INFO L82 PathProgramCache]: Analyzing trace with hash -1056449405, now seen corresponding path program 2 times [2018-04-11 14:54:31,952 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:31,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:31,959 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:32,481 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:32,482 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:54:32,482 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-04-11 14:54:32,482 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:32,482 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 14:54:32,482 INFO L182 omatonBuilderFactory]: Interpolants [46656#false, 46657#(= 0 |main_#t~malloc0.offset|), 46658#(= 0 main_~head~0.offset), 46659#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base))), 46660#(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)), 46661#(and (= 0 main_~head~0.offset) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 46662#(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)), 46663#(and (= 0 main_~head~0.offset) (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|) (= |main_#t~mem3.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1)), 46664#(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))), 46665#(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))), 46666#(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)) (= 0 |main_#t~malloc2.offset|) (= 8 (select |#length| |main_#t~malloc2.base|)) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~head~0.base |main_#t~malloc2.base|)) (not (= main_~x~0.base |main_#t~malloc2.base|))), 46667#(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)) (= 8 (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))) (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)), 46668#(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))) (= 8 (select |#length| |main_#t~mem3.base|)) (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (= |main_#t~mem3.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~mem3.base|))), 46669#(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))) (= 8 (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)))), 46670#(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))) (= 8 (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))) (= |main_#t~malloc2.offset| main_~head~0.offset) (not (= main_~x~0.base main_~head~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~malloc2.base|))), 46671#(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 (= (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))) (= 8 (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)))) (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) main_~head~0.offset)), 46672#(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~mem3.offset| main_~head~0.offset) (= 8 (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~mem3.base|))), 46673#(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))) (= 8 (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))) (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base))), 46674#(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 (= 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))) (= 8 (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)))))), 46675#(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))) (= 8 (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)))))), 46676#(or (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))) (= 8 (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))))) (and (= |main_#t~mem4.offset| 0) (= |main_#t~mem4.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 46677#(or (not |main_#t~short6|) (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))) (= 8 (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)))))), 46678#(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))) (= 8 (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))))), 46679#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem7.base|) |main_#t~mem7.offset|)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem7.base|) |main_#t~mem7.offset|)))), 46680#(and (= 8 (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))), 46681#(and (= |main_#t~mem8.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= |main_#t~mem8.offset| 0)), 46682#(and (= |main_#t~mem11.offset| 0) (= 8 (select |#length| |main_#t~mem11.base|))), 46655#true] [2018-04-11 14:54:32,482 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:32,483 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-04-11 14:54:32,483 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-04-11 14:54:32,483 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=668, Unknown=0, NotChecked=0, Total=756 [2018-04-11 14:54:32,483 INFO L87 Difference]: Start difference. First operand 572 states and 673 transitions. Second operand 28 states. [2018-04-11 14:54:34,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:34,449 INFO L93 Difference]: Finished difference Result 715 states and 816 transitions. [2018-04-11 14:54:34,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-04-11 14:54:34,449 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 64 [2018-04-11 14:54:34,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:34,451 INFO L225 Difference]: With dead ends: 715 [2018-04-11 14:54:34,451 INFO L226 Difference]: Without dead ends: 715 [2018-04-11 14:54:34,451 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 896 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=588, Invalid=3318, Unknown=0, NotChecked=0, Total=3906 [2018-04-11 14:54:34,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2018-04-11 14:54:34,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 572. [2018-04-11 14:54:34,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 572 states. [2018-04-11 14:54:34,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 672 transitions. [2018-04-11 14:54:34,454 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 672 transitions. Word has length 64 [2018-04-11 14:54:34,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:34,455 INFO L459 AbstractCegarLoop]: Abstraction has 572 states and 672 transitions. [2018-04-11 14:54:34,455 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-04-11 14:54:34,455 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 672 transitions. [2018-04-11 14:54:34,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-04-11 14:54:34,455 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:34,455 INFO L355 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 14:54:34,455 INFO L408 AbstractCegarLoop]: === Iteration 61 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:34,455 INFO L82 PathProgramCache]: Analyzing trace with hash 1954212141, now seen corresponding path program 1 times [2018-04-11 14:54:34,456 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:34,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:34,462 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:34,525 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:34,526 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:54:34,526 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-04-11 14:54:34,526 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:34,526 INFO 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 14:54:34,526 INFO L182 omatonBuilderFactory]: Interpolants [48048#(not (= 0 |main_#t~mem18.base|)), 48040#true, 48041#false, 48042#(not (= 0 |main_#t~malloc0.base|)), 48043#(not (= 0 main_~head~0.base)), 48044#(not (= 0 main_~x~0.base)), 48045#(not (= 0 main_~prev~0.base)), 48046#(not (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 48047#(not (= 0 (select (select |#memory_$Pointer$.base| main_~prev~0.base) main_~prev~0.offset)))] [2018-04-11 14:54:34,527 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:34,527 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-11 14:54:34,527 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-11 14:54:34,527 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-04-11 14:54:34,527 INFO L87 Difference]: Start difference. First operand 572 states and 672 transitions. Second operand 9 states. [2018-04-11 14:54:34,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:34,764 INFO L93 Difference]: Finished difference Result 679 states and 762 transitions. [2018-04-11 14:54:34,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-11 14:54:34,764 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2018-04-11 14:54:34,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:34,766 INFO L225 Difference]: With dead ends: 679 [2018-04-11 14:54:34,766 INFO L226 Difference]: Without dead ends: 679 [2018-04-11 14:54:34,766 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2018-04-11 14:54:34,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2018-04-11 14:54:34,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 572. [2018-04-11 14:54:34,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 572 states. [2018-04-11 14:54:34,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 670 transitions. [2018-04-11 14:54:34,769 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 670 transitions. Word has length 65 [2018-04-11 14:54:34,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:34,770 INFO L459 AbstractCegarLoop]: Abstraction has 572 states and 670 transitions. [2018-04-11 14:54:34,770 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-11 14:54:34,770 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 670 transitions. [2018-04-11 14:54:34,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-04-11 14:54:34,770 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:34,770 INFO L355 BasicCegarLoop]: trace histogram [3, 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] [2018-04-11 14:54:34,770 INFO L408 AbstractCegarLoop]: === Iteration 62 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:34,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1399223748, now seen corresponding path program 3 times [2018-04-11 14:54:34,771 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:34,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:34,776 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:34,868 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-04-11 14:54:34,868 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:54:34,868 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2018-04-11 14:54:34,869 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:34,869 INFO 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 14:54:34,869 INFO L182 omatonBuilderFactory]: Interpolants [49328#(and (<= 0 (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 4)) (<= (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 8) (select |#length| |main_#t~mem12.base|)) (= |main_#t~mem12.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 49329#(and (= main_~next~0.offset (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)) (<= (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 8) (select |#length| main_~next~0.base))), 49330#(and (<= (+ main_~next~0.offset 8) (select |#length| main_~next~0.base)) (<= 0 (+ main_~next~0.offset 4))), 49331#(and (<= (+ main_~x~0.offset 8) (select |#length| main_~x~0.base)) (<= 0 (+ main_~x~0.offset 4))), 49332#(and (<= (+ main_~prev~0.offset 8) (select |#length| main_~prev~0.base)) (<= 0 (+ main_~prev~0.offset 4))), 49322#true, 49323#false, 49324#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 49325#(and (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem11.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 49326#(and (<= 0 (+ (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 4)) (<= (+ (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 8) (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 49327#(and (<= (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 8) (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) 4)))] [2018-04-11 14:54:34,869 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-04-11 14:54:34,869 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-04-11 14:54:34,869 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-04-11 14:54:34,869 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2018-04-11 14:54:34,869 INFO L87 Difference]: Start difference. First operand 572 states and 670 transitions. Second operand 11 states. [2018-04-11 14:54:35,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:35,366 INFO L93 Difference]: Finished difference Result 747 states and 844 transitions. [2018-04-11 14:54:35,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-11 14:54:35,367 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 65 [2018-04-11 14:54:35,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:35,368 INFO L225 Difference]: With dead ends: 747 [2018-04-11 14:54:35,368 INFO L226 Difference]: Without dead ends: 747 [2018-04-11 14:54:35,369 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=446, Unknown=0, NotChecked=0, Total=552 [2018-04-11 14:54:35,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2018-04-11 14:54:35,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 583. [2018-04-11 14:54:35,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 583 states. [2018-04-11 14:54:35,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 677 transitions. [2018-04-11 14:54:35,373 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 677 transitions. Word has length 65 [2018-04-11 14:54:35,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:35,373 INFO L459 AbstractCegarLoop]: Abstraction has 583 states and 677 transitions. [2018-04-11 14:54:35,373 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-04-11 14:54:35,373 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 677 transitions. [2018-04-11 14:54:35,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-04-11 14:54:35,373 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:35,373 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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 14:54:35,373 INFO L408 AbstractCegarLoop]: === Iteration 63 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:35,373 INFO L82 PathProgramCache]: Analyzing trace with hash -417209873, now seen corresponding path program 3 times [2018-04-11 14:54:35,374 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:35,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:35,380 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:35,750 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:35,750 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:54:35,750 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-04-11 14:54:35,750 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:35,750 INFO 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 14:54:35,750 INFO L182 omatonBuilderFactory]: Interpolants [50689#true, 50690#false, 50691#(= 0 |main_#t~malloc0.offset|), 50692#(= 0 main_~head~0.offset), 50693#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base))), 50694#(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)), 50695#(and (= 0 main_~head~0.offset) (= 0 |main_#t~malloc2.offset|) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 50696#(and (= 0 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) (= (select |#valid| main_~x~0.base) 1)), 50697#(and (= 0 main_~head~0.offset) (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select |#valid| main_~head~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 50698#(and (= 0 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_~head~0.base) main_~head~0.offset))), 50699#(and (= 0 main_~head~0.offset) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~head~0.base |main_#t~malloc2.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 50700#(and (= 0 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))), 50701#(and (= 0 main_~head~0.offset) (not (= main_~head~0.base |main_#t~mem3.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 50702#(and (= 0 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))), 50703#(and (= |main_#t~malloc2.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))), 50704#(and (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) main_~head~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 50705#(and (= |main_#t~mem3.offset| main_~head~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 50706#(or (and (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))), 50707#(= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)), 50708#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 50709#(and (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem11.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 50710#(and (<= (+ (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 8) (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))), 50711#(and (<= (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 8) (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))), 50712#(and (<= (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 8) (select |#length| |main_#t~mem12.base|)) (= |main_#t~mem12.offset| (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))), 50713#(and (= main_~next~0.offset (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)) (<= (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 8) (select |#length| main_~next~0.base))), 50714#(and (= 0 main_~next~0.offset) (<= (+ main_~next~0.offset 8) (select |#length| main_~next~0.base))), 50715#(and (<= (+ main_~x~0.offset 8) (select |#length| main_~x~0.base)) (= 0 main_~x~0.offset))] [2018-04-11 14:54:35,750 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:35,751 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-04-11 14:54:35,751 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-04-11 14:54:35,751 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=612, Unknown=0, NotChecked=0, Total=702 [2018-04-11 14:54:35,751 INFO L87 Difference]: Start difference. First operand 583 states and 677 transitions. Second operand 27 states. [2018-04-11 14:54:36,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:36,834 INFO L93 Difference]: Finished difference Result 622 states and 707 transitions. [2018-04-11 14:54:36,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-04-11 14:54:36,835 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 65 [2018-04-11 14:54:36,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:36,836 INFO L225 Difference]: With dead ends: 622 [2018-04-11 14:54:36,836 INFO L226 Difference]: Without dead ends: 622 [2018-04-11 14:54:36,836 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 560 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=534, Invalid=2222, Unknown=0, NotChecked=0, Total=2756 [2018-04-11 14:54:36,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2018-04-11 14:54:36,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 583. [2018-04-11 14:54:36,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 583 states. [2018-04-11 14:54:36,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 675 transitions. [2018-04-11 14:54:36,841 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 675 transitions. Word has length 65 [2018-04-11 14:54:36,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:36,841 INFO L459 AbstractCegarLoop]: Abstraction has 583 states and 675 transitions. [2018-04-11 14:54:36,841 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-04-11 14:54:36,841 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 675 transitions. [2018-04-11 14:54:36,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-04-11 14:54:36,841 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:36,841 INFO L355 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 14:54:36,841 INFO L408 AbstractCegarLoop]: === Iteration 64 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:36,842 INFO L82 PathProgramCache]: Analyzing trace with hash 456726471, now seen corresponding path program 1 times [2018-04-11 14:54:36,842 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:36,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:36,848 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:37,165 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:37,166 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:54:37,166 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-04-11 14:54:37,166 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:37,166 INFO 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 14:54:37,166 INFO L182 omatonBuilderFactory]: Interpolants [51973#true, 51974#false, 51975#(= 0 |main_#t~malloc0.offset|), 51976#(= main_~head~0.offset 0), 51977#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 51978#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~x~0.offset 0) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 51979#(and (= 1 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4))) (= 1 (select |#valid| main_~head~0.base)) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= main_~x~0.base main_~head~0.base) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0)), 51980#(and (not (= |main_#t~malloc9.base| main_~x~0.base)) (= 1 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= main_~x~0.base main_~head~0.base) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0)), 51981#(and (= 1 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4))) (< main_~x~0.offset (+ main_~head~0.offset 1)) (= main_~x~0.base main_~head~0.base) (<= main_~head~0.offset main_~x~0.offset) (= main_~head~0.offset 0) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) main_~x~0.base))), 51982#(and (not (= |main_#t~mem10.base| main_~head~0.base)) (= 1 (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 4))) (= main_~head~0.offset 0)), 51983#(and (= 1 (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 4))) (not (= main_~x~0.base main_~head~0.base)) (= main_~head~0.offset 0)), 51984#(and (= 1 (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 4))) (= main_~head~0.offset 0)), 51985#(and (= 1 (select (select |#memory_int| main_~x~0.base) (+ 0 4))) (= 0 main_~x~0.offset)), 51986#(and (= 0 main_~prev~0.offset) (= 1 (select (select |#memory_int| main_~prev~0.base) (+ 0 4)))), 51987#(and (= 1 (select (select |#memory_int| (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))), 51988#(and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~prev~0.base) main_~prev~0.offset)) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~prev~0.base) main_~prev~0.offset))), 51989#(and (= 0 main_~t2~0) (= 1 (select (select |#memory_int| (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))), 51990#(and (= 1 (select (select |#memory_int| |main_#t~mem18.base|) (+ 0 4))) (= 0 |main_#t~mem18.offset|)), 51991#(and (= main_~x~0.offset 0) (= 1 |main_#t~mem13|)), 51992#(and (= 1 main_~t1~0) (= main_~x~0.offset 0))] [2018-04-11 14:54:37,167 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:37,167 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-11 14:54:37,167 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-11 14:54:37,167 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2018-04-11 14:54:37,167 INFO L87 Difference]: Start difference. First operand 583 states and 675 transitions. Second operand 20 states. [2018-04-11 14:54:37,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:37,722 INFO L93 Difference]: Finished difference Result 695 states and 793 transitions. [2018-04-11 14:54:37,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-04-11 14:54:37,723 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 66 [2018-04-11 14:54:37,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:37,724 INFO L225 Difference]: With dead ends: 695 [2018-04-11 14:54:37,724 INFO L226 Difference]: Without dead ends: 695 [2018-04-11 14:54:37,724 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 4 SyntacticMatches, 4 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=241, Invalid=1319, Unknown=0, NotChecked=0, Total=1560 [2018-04-11 14:54:37,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2018-04-11 14:54:37,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 624. [2018-04-11 14:54:37,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 624 states. [2018-04-11 14:54:37,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 718 transitions. [2018-04-11 14:54:37,728 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 718 transitions. Word has length 66 [2018-04-11 14:54:37,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:37,728 INFO L459 AbstractCegarLoop]: Abstraction has 624 states and 718 transitions. [2018-04-11 14:54:37,728 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-11 14:54:37,728 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 718 transitions. [2018-04-11 14:54:37,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-04-11 14:54:37,729 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:37,729 INFO L355 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 14:54:37,729 INFO L408 AbstractCegarLoop]: === Iteration 65 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:37,729 INFO L82 PathProgramCache]: Analyzing trace with hash -244564191, now seen corresponding path program 2 times [2018-04-11 14:54:37,729 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:37,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:37,736 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:38,068 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 14:54:38,069 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:54:38,069 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-04-11 14:54:38,069 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:38,069 INFO 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 14:54:38,069 INFO L182 omatonBuilderFactory]: Interpolants [53376#(= 1 (select |#valid| |main_#t~mem12.base|)), 53377#(= 1 (select |#valid| main_~next~0.base)), 53378#(= 1 (select |#valid| main_~x~0.base)), 53352#true, 53353#false, 53354#(= 1 (select |#valid| main_~head~0.base)), 53355#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 53356#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 53357#(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)), 53358#(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)) (= (select |#valid| main_~head~0.base) 1)), 53359#(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))), 53360#(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_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1)), 53361#(and (= (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_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1)), 53362#(and (= main_~x~0.offset main_~head~0.offset) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) 1) (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)), 53363#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (= (select |#valid| |main_#t~mem7.base|) 1) (= (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))), 53364#(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)) (= (select |#valid| main_~x~0.base) 1)), 53365#(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))), 53366#(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_~x~0.base)) (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)))), 53367#(and (= |main_#t~mem10.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~mem10.base|)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem10.base|))), 53368#(and (not (= main_~head~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_~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)))), 53369#(and (= 1 (select |#valid| main_~x~0.base)) (not (= main_~head~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)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 53370#(and (not (= main_~head~0.base (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)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 53371#(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)))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 53372#(and (not (= main_~x~0.base |main_#t~mem12.base|)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem12.base|) |main_#t~mem12.offset|)))), 53373#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset))) (not (= main_~x~0.base main_~next~0.base))), 53374#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset))), 53375#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))] [2018-04-11 14:54:38,069 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 14:54:38,069 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-04-11 14:54:38,069 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-04-11 14:54:38,069 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=623, Unknown=0, NotChecked=0, Total=702 [2018-04-11 14:54:38,070 INFO L87 Difference]: Start difference. First operand 624 states and 718 transitions. Second operand 27 states. [2018-04-11 14:54:39,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:39,203 INFO L93 Difference]: Finished difference Result 800 states and 916 transitions. [2018-04-11 14:54:39,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-04-11 14:54:39,203 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 66 [2018-04-11 14:54:39,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:39,204 INFO L225 Difference]: With dead ends: 800 [2018-04-11 14:54:39,204 INFO L226 Difference]: Without dead ends: 800 [2018-04-11 14:54:39,205 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 559 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=346, Invalid=2306, Unknown=0, NotChecked=0, Total=2652 [2018-04-11 14:54:39,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2018-04-11 14:54:39,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 628. [2018-04-11 14:54:39,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2018-04-11 14:54:39,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 724 transitions. [2018-04-11 14:54:39,208 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 724 transitions. Word has length 66 [2018-04-11 14:54:39,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:39,209 INFO L459 AbstractCegarLoop]: Abstraction has 628 states and 724 transitions. [2018-04-11 14:54:39,209 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-04-11 14:54:39,209 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 724 transitions. [2018-04-11 14:54:39,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-04-11 14:54:39,209 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:39,209 INFO L355 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 14:54:39,209 INFO L408 AbstractCegarLoop]: === Iteration 66 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:39,209 INFO L82 PathProgramCache]: Analyzing trace with hash -244564190, now seen corresponding path program 2 times [2018-04-11 14:54:39,210 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:39,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:39,219 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:39,576 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 14:54:39,576 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:54:39,576 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-04-11 14:54:39,576 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:39,576 INFO 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 14:54:39,576 INFO L182 omatonBuilderFactory]: Interpolants [54857#true, 54858#false, 54859#(= 1 (select |#valid| main_~head~0.base)), 54860#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 54861#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 54862#(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) (= (select |#valid| main_~head~0.base) 1) (= main_~x~0.base main_~head~0.base)), 54863#(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)) (= (select |#valid| main_~head~0.base) 1)), 54864#(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))), 54865#(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_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1)), 54866#(and (= (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_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1)), 54867#(and (= main_~x~0.offset main_~head~0.offset) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) 1) (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)), 54868#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (= (select |#valid| |main_#t~mem7.base|) 1) (= (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))), 54869#(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)) (= (select |#valid| main_~x~0.base) 1)), 54870#(and (= 0 |main_#t~malloc9.offset|) (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)) (= 8 (select |#length| |main_#t~malloc9.base|))), 54871#(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)) (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))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~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)))), 54872#(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))) (= 8 (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~mem10.base|)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem10.base|))), 54873#(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))) (= 8 (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_~head~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_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base))), 54874#(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))) (= 8 (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_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 54875#(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))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 8 (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))))), 54876#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem12.base|) |main_#t~mem12.offset|)) (not (= main_~x~0.base |main_#t~mem12.base|)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem12.base|) |main_#t~mem12.offset|)))), 54877#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~next~0.base) main_~next~0.offset)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset))) (not (= main_~x~0.base main_~next~0.base))), 54878#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~next~0.base) main_~next~0.offset)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset)))), 54879#(and (= 8 (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))), 54880#(and (= |main_#t~mem12.offset| (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)) (= 8 (select |#length| |main_#t~mem12.base|))), 54881#(and (= main_~next~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 8 (select |#length| main_~next~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 54882#(and (= 0 main_~next~0.offset) (= 8 (select |#length| main_~next~0.base))), 54883#(and (= 8 (select |#length| main_~x~0.base)) (= 0 main_~x~0.offset))] [2018-04-11 14:54:39,577 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 14:54:39,577 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-04-11 14:54:39,577 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-04-11 14:54:39,577 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2018-04-11 14:54:39,577 INFO L87 Difference]: Start difference. First operand 628 states and 724 transitions. Second operand 27 states. [2018-04-11 14:54:40,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:40,947 INFO L93 Difference]: Finished difference Result 809 states and 930 transitions. [2018-04-11 14:54:40,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-04-11 14:54:40,948 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 66 [2018-04-11 14:54:40,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:40,949 INFO L225 Difference]: With dead ends: 809 [2018-04-11 14:54:40,949 INFO L226 Difference]: Without dead ends: 809 [2018-04-11 14:54:40,950 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=217, Invalid=1763, Unknown=0, NotChecked=0, Total=1980 [2018-04-11 14:54:40,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2018-04-11 14:54:40,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 624. [2018-04-11 14:54:40,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 624 states. [2018-04-11 14:54:40,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 718 transitions. [2018-04-11 14:54:40,956 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 718 transitions. Word has length 66 [2018-04-11 14:54:40,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:40,956 INFO L459 AbstractCegarLoop]: Abstraction has 624 states and 718 transitions. [2018-04-11 14:54:40,956 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-04-11 14:54:40,956 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 718 transitions. [2018-04-11 14:54:40,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-04-11 14:54:40,957 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:40,957 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] [2018-04-11 14:54:40,957 INFO L408 AbstractCegarLoop]: === Iteration 67 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:40,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1745951352, now seen corresponding path program 1 times [2018-04-11 14:54:40,957 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:40,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:40,962 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:41,019 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-04-11 14:54:41,020 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:54:41,020 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2018-04-11 14:54:41,020 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:41,020 INFO 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 14:54:41,020 INFO L182 omatonBuilderFactory]: Interpolants [56353#true, 56354#false, 56355#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 56356#(= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)), 56357#(= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)), 56358#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 56359#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 56360#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 56361#(= 1 (select |#valid| |main_#t~mem12.base|)), 56362#(= 1 (select |#valid| main_~next~0.base)), 56363#(= 1 (select |#valid| main_~x~0.base))] [2018-04-11 14:54:41,020 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-04-11 14:54:41,020 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-04-11 14:54:41,020 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-04-11 14:54:41,020 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-04-11 14:54:41,021 INFO L87 Difference]: Start difference. First operand 624 states and 718 transitions. Second operand 11 states. [2018-04-11 14:54:41,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:41,304 INFO L93 Difference]: Finished difference Result 677 states and 765 transitions. [2018-04-11 14:54:41,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-04-11 14:54:41,305 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 66 [2018-04-11 14:54:41,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:41,305 INFO L225 Difference]: With dead ends: 677 [2018-04-11 14:54:41,305 INFO L226 Difference]: Without dead ends: 677 [2018-04-11 14:54:41,306 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2018-04-11 14:54:41,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2018-04-11 14:54:41,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 625. [2018-04-11 14:54:41,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2018-04-11 14:54:41,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 719 transitions. [2018-04-11 14:54:41,309 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 719 transitions. Word has length 66 [2018-04-11 14:54:41,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:41,309 INFO L459 AbstractCegarLoop]: Abstraction has 625 states and 719 transitions. [2018-04-11 14:54:41,309 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-04-11 14:54:41,309 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 719 transitions. [2018-04-11 14:54:41,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-04-11 14:54:41,310 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:41,310 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] [2018-04-11 14:54:41,310 INFO L408 AbstractCegarLoop]: === Iteration 68 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:41,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1745951353, now seen corresponding path program 1 times [2018-04-11 14:54:41,310 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:41,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:41,315 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:41,406 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-04-11 14:54:41,406 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:54:41,406 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-04-11 14:54:41,406 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:41,406 INFO 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 14:54:41,407 INFO L182 omatonBuilderFactory]: Interpolants [57683#true, 57684#false, 57685#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 57686#(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))), 57687#(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))), 57688#(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)) (<= 0 main_~x~0.offset)), 57689#(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 8) (select |#length| main_~x~0.base)) (<= 0 main_~x~0.offset)), 57690#(and (<= (+ (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 8) (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))), 57691#(and (<= (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 8) (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))), 57692#(and (<= (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 8) (select |#length| |main_#t~mem12.base|)) (= |main_#t~mem12.offset| (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))), 57693#(and (= main_~next~0.offset (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)) (<= (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 8) (select |#length| main_~next~0.base))), 57694#(and (<= 0 main_~next~0.offset) (<= (+ main_~next~0.offset 8) (select |#length| main_~next~0.base))), 57695#(and (<= (+ main_~x~0.offset 8) (select |#length| main_~x~0.base)) (<= 0 main_~x~0.offset))] [2018-04-11 14:54:41,407 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-04-11 14:54:41,407 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-11 14:54:41,407 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-11 14:54:41,407 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2018-04-11 14:54:41,407 INFO L87 Difference]: Start difference. First operand 625 states and 719 transitions. Second operand 13 states. [2018-04-11 14:54:41,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:41,751 INFO L93 Difference]: Finished difference Result 685 states and 772 transitions. [2018-04-11 14:54:41,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-11 14:54:41,751 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 66 [2018-04-11 14:54:41,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:41,752 INFO L225 Difference]: With dead ends: 685 [2018-04-11 14:54:41,752 INFO L226 Difference]: Without dead ends: 685 [2018-04-11 14:54:41,752 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2018-04-11 14:54:41,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2018-04-11 14:54:41,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 653. [2018-04-11 14:54:41,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 653 states. [2018-04-11 14:54:41,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 750 transitions. [2018-04-11 14:54:41,756 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 750 transitions. Word has length 66 [2018-04-11 14:54:41,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:41,756 INFO L459 AbstractCegarLoop]: Abstraction has 653 states and 750 transitions. [2018-04-11 14:54:41,756 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-11 14:54:41,756 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 750 transitions. [2018-04-11 14:54:41,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-04-11 14:54:41,756 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:41,756 INFO L355 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1] [2018-04-11 14:54:41,756 INFO L408 AbstractCegarLoop]: === Iteration 69 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:41,756 INFO L82 PathProgramCache]: Analyzing trace with hash 855754377, now seen corresponding path program 1 times [2018-04-11 14:54:41,757 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:41,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:41,761 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:41,962 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:41,962 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:54:41,962 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-04-11 14:54:41,962 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:41,962 INFO 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 14:54:41,962 INFO L182 omatonBuilderFactory]: Interpolants [59046#true, 59047#false, 59048#(= 1 (select |#valid| main_~head~0.base)), 59049#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 59050#(and (not (= main_~x~0.base |main_#t~malloc9.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 59051#(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)), 59052#(and (= |main_#t~mem10.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (not (= main_~head~0.base |main_#t~mem10.base|))), 59053#(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))), 59054#(not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 59055#(and (= 0 main_~prev~0.offset) (= 0 main_~prev~0.base) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 59056#(and (= 0 main_~prev~0.offset) (= 0 main_~prev~0.base) (not (= main_~x~0.base |main_#t~mem12.base|))), 59057#(and (= 0 main_~prev~0.offset) (= 0 main_~prev~0.base) (not (= main_~x~0.base main_~next~0.base))), 59058#(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)) (not (= main_~x~0.base main_~next~0.base))), 59059#(and (not (= main_~x~0.base main_~prev~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~prev~0.base) main_~prev~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~prev~0.base) main_~prev~0.offset))), 59060#(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)))), 59061#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~prev~0.base) main_~prev~0.offset)) (select (select |#memory_$Pointer$.offset| main_~prev~0.base) main_~prev~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~prev~0.base) main_~prev~0.offset)) (select (select |#memory_$Pointer$.offset| main_~prev~0.base) main_~prev~0.offset)))), 59062#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem17.base|) |main_#t~mem17.offset|)) (= 0 (select (select |#memory_$Pointer$.base| |main_#t~mem17.base|) |main_#t~mem17.offset|))), 59063#(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))), 59064#(and (= 0 |main_#t~mem18.base|) (= 0 |main_#t~mem18.offset|)), 59065#(and (= 0 main_~x~0.base) (= 0 main_~x~0.offset))] [2018-04-11 14:54:41,962 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:41,962 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-11 14:54:41,963 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-11 14:54:41,963 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=338, Unknown=0, NotChecked=0, Total=380 [2018-04-11 14:54:41,963 INFO L87 Difference]: Start difference. First operand 653 states and 750 transitions. Second operand 20 states. [2018-04-11 14:54:42,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:42,724 INFO L93 Difference]: Finished difference Result 713 states and 816 transitions. [2018-04-11 14:54:42,724 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-04-11 14:54:42,724 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 67 [2018-04-11 14:54:42,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:42,725 INFO L225 Difference]: With dead ends: 713 [2018-04-11 14:54:42,725 INFO L226 Difference]: Without dead ends: 713 [2018-04-11 14:54:42,725 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=165, Invalid=1395, Unknown=0, NotChecked=0, Total=1560 [2018-04-11 14:54:42,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2018-04-11 14:54:42,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 659. [2018-04-11 14:54:42,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 659 states. [2018-04-11 14:54:42,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 756 transitions. [2018-04-11 14:54:42,730 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 756 transitions. Word has length 67 [2018-04-11 14:54:42,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:42,730 INFO L459 AbstractCegarLoop]: Abstraction has 659 states and 756 transitions. [2018-04-11 14:54:42,730 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-11 14:54:42,731 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 756 transitions. [2018-04-11 14:54:42,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-04-11 14:54:42,731 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:42,731 INFO L355 BasicCegarLoop]: trace histogram [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] [2018-04-11 14:54:42,731 INFO L408 AbstractCegarLoop]: === Iteration 70 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:42,731 INFO L82 PathProgramCache]: Analyzing trace with hash 586103696, now seen corresponding path program 1 times [2018-04-11 14:54:42,732 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:42,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:42,739 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:43,103 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:43,103 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:54:43,103 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-04-11 14:54:43,103 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:43,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:43,104 INFO L182 omatonBuilderFactory]: Interpolants [60480#(= (select |#valid| 0) 0), 60481#(and (= 1 (select |#valid| main_~head~0.base)) (= (select |#valid| 0) 0)), 60482#(and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= (select |#valid| 0) 0) (= main_~x~0.base main_~head~0.base)), 60483#(and (not (= |main_#t~malloc2.base| 0)) (= main_~x~0.offset main_~head~0.offset) (= (select |#valid| 0) 0) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 60484#(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)) (= (select |#valid| 0) 0) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset) 0)) (= main_~x~0.base main_~head~0.base)), 60485#(and (not (= main_~head~0.base |main_#t~mem3.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0)) (= 1 (select |#valid| main_~head~0.base)) (= (select |#valid| 0) 0) (= |main_#t~mem3.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 60486#(or (= 1 (select |#valid| 0)) (and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0)) (= 1 (select |#valid| main_~head~0.base)) (= (select |#valid| 0) 0) (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)))), 60487#(or (and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0)) (= 1 (select |#valid| main_~head~0.base)) (= (select |#valid| 0) 0) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))) (= 1 (select |#valid| 0))), 60488#(or (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))) (= (select |#valid| 0) 0) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset) 0)) (= main_~x~0.base main_~head~0.base)) (= 1 (select |#valid| 0))), 60489#(or (= 1 (select |#valid| 0)) (and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0)) (= 1 (select |#valid| main_~head~0.base)) (= (select |#valid| 0) 0) (not (= main_~head~0.base |main_#t~mem7.base|)))), 60490#(or (= 1 (select |#valid| 0)) (and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0)) (= 1 (select |#valid| main_~head~0.base)) (= (select |#valid| 0) 0) (not (= main_~x~0.base main_~head~0.base)))), 60491#(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) 0)) (not (= main_~x~0.base main_~head~0.base))) (= 1 (select |#valid| 0))), 60492#(or (and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))) (= 1 (select |#valid| 0))), 60493#(or (and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0)) (not (= main_~head~0.base |main_#t~mem10.base|))) (= 1 (select |#valid| 0))), 60494#(or (= 1 (select |#valid| 0)) (and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0)) (not (= main_~x~0.base main_~head~0.base)))), 60495#(or (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) 0)) (= 1 (select |#valid| 0))), 60496#(and (= 0 main_~prev~0.base) (or (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) 0)) (= 1 (select |#valid| 0)))), 60497#(and (= 0 main_~prev~0.base) (or (= 1 (select |#valid| 0)) (and (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) 0)) (= |main_#t~mem12.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))))), 60498#(and (= 0 main_~prev~0.base) (or (and (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) 0)) (= main_~next~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 1 (select |#valid| 0)))), 60499#(and (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (or (= 1 (select |#valid| 0)) (not (= main_~next~0.base 0)))), 60500#(and (or (not (= main_~x~0.base 0)) (= 1 (select |#valid| 0))) (= 0 (select (select |#memory_$Pointer$.base| main_~prev~0.base) main_~prev~0.offset))), 60501#(and (= 1 (select |#valid| 0)) (= 0 (select (select |#memory_$Pointer$.base| main_~prev~0.base) main_~prev~0.offset))), 60502#(and (= 1 (select |#valid| 0)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 60503#(and (= 0 |main_#t~mem14.base|) (= 1 (select |#valid| 0))), 60478#true, 60479#false] [2018-04-11 14:54:43,104 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:43,104 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-04-11 14:54:43,104 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-04-11 14:54:43,104 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=537, Unknown=0, NotChecked=0, Total=650 [2018-04-11 14:54:43,104 INFO L87 Difference]: Start difference. First operand 659 states and 756 transitions. Second operand 26 states. [2018-04-11 14:54:43,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:43,943 INFO L93 Difference]: Finished difference Result 671 states and 767 transitions. [2018-04-11 14:54:43,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-11 14:54:43,944 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 67 [2018-04-11 14:54:43,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:43,944 INFO L225 Difference]: With dead ends: 671 [2018-04-11 14:54:43,944 INFO L226 Difference]: Without dead ends: 671 [2018-04-11 14:54:43,945 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=284, Invalid=1356, Unknown=0, NotChecked=0, Total=1640 [2018-04-11 14:54:43,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2018-04-11 14:54:43,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 650. [2018-04-11 14:54:43,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 650 states. [2018-04-11 14:54:43,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 746 transitions. [2018-04-11 14:54:43,948 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 746 transitions. Word has length 67 [2018-04-11 14:54:43,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:43,949 INFO L459 AbstractCegarLoop]: Abstraction has 650 states and 746 transitions. [2018-04-11 14:54:43,949 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-04-11 14:54:43,949 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 746 transitions. [2018-04-11 14:54:43,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-04-11 14:54:43,949 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:43,950 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 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] [2018-04-11 14:54:43,950 INFO L408 AbstractCegarLoop]: === Iteration 71 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:43,950 INFO L82 PathProgramCache]: Analyzing trace with hash 336327888, now seen corresponding path program 4 times [2018-04-11 14:54:43,950 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:43,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:43,959 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:44,590 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 3 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:44,590 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:54:44,590 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-04-11 14:54:44,590 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:44,591 INFO 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 14:54:44,591 INFO L182 omatonBuilderFactory]: Interpolants [61855#true, 61856#false, 61857#(= 1 (select |#valid| main_~head~0.base)), 61858#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 61859#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 61860#(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) (= (select |#valid| main_~x~0.base) 1)), 61861#(and (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|) (= |main_#t~mem3.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1)), 61862#(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))), 61863#(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))), 61864#(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)) (not (= main_~head~0.base |main_#t~malloc2.base|)) (not (= main_~x~0.base |main_#t~malloc2.base|))), 61865#(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_~x~0.base)) (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)))), 61866#(and (= |main_#t~mem3.offset| (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)) |main_#t~mem3.base|) (not (= main_~head~0.base |main_#t~mem3.base|)) (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) |main_#t~mem3.base|))), 61867#(and (= main_~x~0.offset (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_~head~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_~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)))), 61868#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~x~0.base)) (not (= main_~head~0.base main_~x~0.base)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.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)))) (not (= main_~head~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)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.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))))), 61869#(and (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)) (select (select |#memory_$Pointer$.offset| 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))) (= 0 (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))) (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_~head~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)))) (= 0 (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))) (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))))), 61870#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)))) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (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_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)))) (= main_~x~0.base main_~head~0.base) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset))))), 61871#(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| (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_$Pointer$.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| (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)))) (not (= main_~x~0.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)))) (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)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 61872#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| |main_#t~mem12.base|) |main_#t~mem12.offset|))) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) (select (select |#memory_$Pointer$.base| |main_#t~mem12.base|) |main_#t~mem12.offset|))) (not (= main_~x~0.base |main_#t~mem12.base|)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem12.base|) |main_#t~mem12.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem12.base|) |main_#t~mem12.offset|))) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem12.base|) |main_#t~mem12.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem12.base|) |main_#t~mem12.offset|))) (= |main_#t~mem12.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 61873#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset)) (select (select |#memory_$Pointer$.offset| main_~next~0.base) main_~next~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset))) (= main_~next~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset)) (select (select |#memory_$Pointer$.offset| main_~next~0.base) main_~next~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset))) (not (= main_~x~0.base main_~next~0.base))), 61874#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset)) (select (select |#memory_$Pointer$.offset| main_~next~0.base) main_~next~0.offset))) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset)) (select (select |#memory_$Pointer$.offset| main_~next~0.base) main_~next~0.offset))) (not (= main_~next~0.base (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset)))), 61875#(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))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| 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)))), 61876#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem12.base|) |main_#t~mem12.offset|)) (not (= main_~x~0.base |main_#t~mem12.base|)) (= 0 (select (select |#memory_$Pointer$.base| |main_#t~mem12.base|) |main_#t~mem12.offset|))), 61877#(and (= 0 (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~next~0.base) main_~next~0.offset)) (not (= main_~x~0.base main_~next~0.base))), 61878#(and (= 0 (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~next~0.base) main_~next~0.offset))), 61879#(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))), 61880#(and (= |main_#t~mem12.offset| (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)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= |main_#t~mem12.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 61881#(and (= main_~next~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~next~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)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 61882#(and (= 0 main_~next~0.offset) (= 0 main_~next~0.base)), 61883#(and (= 0 main_~x~0.base) (= 0 main_~x~0.offset))] [2018-04-11 14:54:44,591 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 3 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:44,591 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-04-11 14:54:44,591 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-04-11 14:54:44,591 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=743, Unknown=0, NotChecked=0, Total=812 [2018-04-11 14:54:44,591 INFO L87 Difference]: Start difference. First operand 650 states and 746 transitions. Second operand 29 states. [2018-04-11 14:54:46,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:46,420 INFO L93 Difference]: Finished difference Result 889 states and 1021 transitions. [2018-04-11 14:54:46,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-04-11 14:54:46,420 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 68 [2018-04-11 14:54:46,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:46,421 INFO L225 Difference]: With dead ends: 889 [2018-04-11 14:54:46,421 INFO L226 Difference]: Without dead ends: 889 [2018-04-11 14:54:46,421 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 764 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=295, Invalid=3365, Unknown=0, NotChecked=0, Total=3660 [2018-04-11 14:54:46,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2018-04-11 14:54:46,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 671. [2018-04-11 14:54:46,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 671 states. [2018-04-11 14:54:46,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 768 transitions. [2018-04-11 14:54:46,425 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 768 transitions. Word has length 68 [2018-04-11 14:54:46,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:46,425 INFO L459 AbstractCegarLoop]: Abstraction has 671 states and 768 transitions. [2018-04-11 14:54:46,425 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-04-11 14:54:46,425 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 768 transitions. [2018-04-11 14:54:46,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-04-11 14:54:46,426 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:46,426 INFO L355 BasicCegarLoop]: trace histogram [3, 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] [2018-04-11 14:54:46,426 INFO L408 AbstractCegarLoop]: === Iteration 72 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:46,426 INFO L82 PathProgramCache]: Analyzing trace with hash -1616958668, now seen corresponding path program 1 times [2018-04-11 14:54:46,427 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:46,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:46,432 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:46,448 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-04-11 14:54:46,448 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 14:54:46,448 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 14:54:46,448 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:46,449 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 14:54:46,449 INFO L182 omatonBuilderFactory]: Interpolants [63508#true, 63509#false, 63510#(<= 0 main_~x~0.offset), 63511#(<= 0 main_~prev~0.offset), 63512#(and (<= (+ main_~x~0.offset 8) (select |#length| main_~x~0.base)) (<= 0 main_~x~0.offset))] [2018-04-11 14:54:46,449 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-04-11 14:54:46,449 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 14:54:46,449 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 14:54:46,449 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-04-11 14:54:46,449 INFO L87 Difference]: Start difference. First operand 671 states and 768 transitions. Second operand 5 states. [2018-04-11 14:54:46,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:46,513 INFO L93 Difference]: Finished difference Result 676 states and 762 transitions. [2018-04-11 14:54:46,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-11 14:54:46,513 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 68 [2018-04-11 14:54:46,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:46,514 INFO L225 Difference]: With dead ends: 676 [2018-04-11 14:54:46,514 INFO L226 Difference]: Without dead ends: 676 [2018-04-11 14:54:46,514 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-04-11 14:54:46,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2018-04-11 14:54:46,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 638. [2018-04-11 14:54:46,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 638 states. [2018-04-11 14:54:46,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 722 transitions. [2018-04-11 14:54:46,517 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 722 transitions. Word has length 68 [2018-04-11 14:54:46,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:46,518 INFO L459 AbstractCegarLoop]: Abstraction has 638 states and 722 transitions. [2018-04-11 14:54:46,518 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 14:54:46,518 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 722 transitions. [2018-04-11 14:54:46,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-04-11 14:54:46,518 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:46,518 INFO L355 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1] [2018-04-11 14:54:46,518 INFO L408 AbstractCegarLoop]: === Iteration 73 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:46,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1548669129, now seen corresponding path program 1 times [2018-04-11 14:54:46,519 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:46,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:46,525 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:46,885 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 14:54:46,885 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:54:46,885 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-04-11 14:54:46,885 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:46,885 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 14:54:46,886 INFO L182 omatonBuilderFactory]: Interpolants [64832#true, 64833#false, 64834#(= 1 (select |#valid| main_~head~0.base)), 64835#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 64836#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 64837#(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)), 64838#(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)) (= (select |#valid| main_~head~0.base) 1)), 64839#(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))), 64840#(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_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1)), 64841#(and (= (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_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1)), 64842#(and (= main_~x~0.offset main_~head~0.offset) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) 1) (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)), 64843#(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_#t~mem7.base|) 1) (= (select |#valid| main_~head~0.base) 1) (not (= main_~head~0.base |main_#t~mem7.base|))), 64844#(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)) (= (select |#valid| main_~x~0.base) 1)), 64845#(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)) (not (= |main_#t~malloc9.base| 0))), 64846#(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)) (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 (select |#memory_$Pointer$.base| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0))), 64847#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem10.base|)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem10.base|)) (not (= (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))), 64848#(and (not (= main_~head~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_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (not (= (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))), 64849#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= (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))), 64850#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= (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))), 64851#(and (not (= main_~x~0.base |main_#t~mem12.base|)) (= |main_#t~mem12.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (not (= (select (select |#memory_$Pointer$.base| |main_#t~mem12.base|) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) 0))), 64852#(and (= main_~next~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~next~0.base) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) 0)) (not (= main_~x~0.base main_~next~0.base))), 64853#(not (= (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset) 0)), 64854#(not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) 0)), 64855#(and (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) 0)) (= |main_#t~mem12.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 64856#(and (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) 0)) (= main_~next~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 64857#(not (= main_~next~0.base 0)), 64858#(not (= main_~x~0.base 0))] [2018-04-11 14:54:46,886 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 14:54:46,886 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-04-11 14:54:46,886 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-04-11 14:54:46,886 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=625, Unknown=0, NotChecked=0, Total=702 [2018-04-11 14:54:46,886 INFO L87 Difference]: Start difference. First operand 638 states and 722 transitions. Second operand 27 states. [2018-04-11 14:54:47,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:47,742 INFO L93 Difference]: Finished difference Result 648 states and 731 transitions. [2018-04-11 14:54:47,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-04-11 14:54:47,742 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 69 [2018-04-11 14:54:47,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:47,743 INFO L225 Difference]: With dead ends: 648 [2018-04-11 14:54:47,743 INFO L226 Difference]: Without dead ends: 648 [2018-04-11 14:54:47,743 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=218, Invalid=1762, Unknown=0, NotChecked=0, Total=1980 [2018-04-11 14:54:47,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2018-04-11 14:54:47,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 638. [2018-04-11 14:54:47,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 638 states. [2018-04-11 14:54:47,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 721 transitions. [2018-04-11 14:54:47,746 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 721 transitions. Word has length 69 [2018-04-11 14:54:47,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:47,746 INFO L459 AbstractCegarLoop]: Abstraction has 638 states and 721 transitions. [2018-04-11 14:54:47,746 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-04-11 14:54:47,746 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 721 transitions. [2018-04-11 14:54:47,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-04-11 14:54:47,747 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:47,747 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] [2018-04-11 14:54:47,747 INFO L408 AbstractCegarLoop]: === Iteration 74 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:47,747 INFO L82 PathProgramCache]: Analyzing trace with hash -2075429419, now seen corresponding path program 1 times [2018-04-11 14:54:47,747 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:47,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:47,751 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:47,788 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-04-11 14:54:47,788 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 14:54:47,788 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-11 14:54:47,789 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:47,789 INFO 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 14:54:47,789 INFO L182 omatonBuilderFactory]: Interpolants [66181#true, 66183#(and (= |main_#t~mem4.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= |main_#t~mem4.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 66182#false, 66185#(or (not (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0))), 66184#(or (not (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not |main_#t~short6|) (not (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0))), 66186#(or (not (= |main_#t~mem8.offset| 0)) (not (= 0 |main_#t~mem8.base|)))] [2018-04-11 14:54:47,789 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-04-11 14:54:47,789 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 14:54:47,789 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 14:54:47,789 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-04-11 14:54:47,789 INFO L87 Difference]: Start difference. First operand 638 states and 721 transitions. Second operand 6 states. [2018-04-11 14:54:47,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:47,887 INFO L93 Difference]: Finished difference Result 639 states and 713 transitions. [2018-04-11 14:54:47,888 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-11 14:54:47,888 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 69 [2018-04-11 14:54:47,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:47,888 INFO L225 Difference]: With dead ends: 639 [2018-04-11 14:54:47,888 INFO L226 Difference]: Without dead ends: 639 [2018-04-11 14:54:47,888 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-04-11 14:54:47,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2018-04-11 14:54:47,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 636. [2018-04-11 14:54:47,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 636 states. [2018-04-11 14:54:47,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 711 transitions. [2018-04-11 14:54:47,891 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 711 transitions. Word has length 69 [2018-04-11 14:54:47,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:47,891 INFO L459 AbstractCegarLoop]: Abstraction has 636 states and 711 transitions. [2018-04-11 14:54:47,892 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 14:54:47,892 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 711 transitions. [2018-04-11 14:54:47,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-04-11 14:54:47,892 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:47,892 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] [2018-04-11 14:54:47,892 INFO L408 AbstractCegarLoop]: === Iteration 75 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:47,892 INFO L82 PathProgramCache]: Analyzing trace with hash 2085524371, now seen corresponding path program 3 times [2018-04-11 14:54:47,893 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:47,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:47,898 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:48,259 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 14:54:48,260 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:54:48,260 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-04-11 14:54:48,260 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:48,260 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 14:54:48,260 INFO L182 omatonBuilderFactory]: Interpolants [67469#true, 67471#(and (not (= 0 |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|)), 67470#false, 67473#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base)) (not (= 0 main_~head~0.base))), 67472#(and (= 0 main_~head~0.offset) (not (= 0 main_~head~0.base))), 67475#(and (= main_~x~0.offset main_~head~0.offset) (= |main_#t~malloc2.offset| main_~head~0.offset) (not (= 0 main_~head~0.base)) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 67474#(and (= 0 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) (= (select |#valid| main_~x~0.base) 1)), 67477#(and (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= 0 main_~head~0.base))), 67476#(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) (= (select |#valid| main_~x~0.base) 1)), 67479#(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)) (not (= main_~head~0.base |main_#t~malloc2.base|))), 67478#(and (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= 0 main_~head~0.base)) (not (= main_~x~0.base main_~head~0.base))), 67481#(and (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (not (= 0 main_~head~0.base))), 67480#(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 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 67483#(and (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (not (= 0 main_~head~0.base))), 67482#(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))), 67485#(and (not (= 0 main_~x~0.base)) (= 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) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 67484#(and (not (= 0 main_~x~0.base)) (= 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) (= main_~x~0.base main_~head~0.base)), 67487#(or (not (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (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)))), 67486#(and (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) |main_#t~mem7.offset|)) (= (select |#valid| main_~head~0.base) 1) (not (= 0 main_~head~0.base)) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 67489#(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))), 67488#(or (not (= 0 |main_#t~mem8.base|)) (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)))), 67491#(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))) (= (select |#valid| main_~x~0.base) 1)), 67490#(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))), 67493#(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))), 67492#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem10.base|))), 67495#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 67494#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 67497#(= 1 (select |#valid| main_~next~0.base)), 67496#(= 1 (select |#valid| |main_#t~mem12.base|)), 67498#(= 1 (select |#valid| main_~x~0.base))] [2018-04-11 14:54:48,260 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 14:54:48,260 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-04-11 14:54:48,260 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-04-11 14:54:48,260 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=787, Unknown=0, NotChecked=0, Total=870 [2018-04-11 14:54:48,261 INFO L87 Difference]: Start difference. First operand 636 states and 711 transitions. Second operand 30 states. [2018-04-11 14:54:49,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:49,913 INFO L93 Difference]: Finished difference Result 735 states and 816 transitions. [2018-04-11 14:54:49,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-04-11 14:54:49,913 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 69 [2018-04-11 14:54:49,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:49,914 INFO L225 Difference]: With dead ends: 735 [2018-04-11 14:54:49,914 INFO L226 Difference]: Without dead ends: 735 [2018-04-11 14:54:49,915 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 693 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=622, Invalid=3284, Unknown=0, NotChecked=0, Total=3906 [2018-04-11 14:54:49,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2018-04-11 14:54:49,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 658. [2018-04-11 14:54:49,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 658 states. [2018-04-11 14:54:49,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 734 transitions. [2018-04-11 14:54:49,918 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 734 transitions. Word has length 69 [2018-04-11 14:54:49,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:49,918 INFO L459 AbstractCegarLoop]: Abstraction has 658 states and 734 transitions. [2018-04-11 14:54:49,918 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-04-11 14:54:49,918 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 734 transitions. [2018-04-11 14:54:49,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-04-11 14:54:49,919 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:49,919 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] [2018-04-11 14:54:49,919 INFO L408 AbstractCegarLoop]: === Iteration 76 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:49,919 INFO L82 PathProgramCache]: Analyzing trace with hash 2085524372, now seen corresponding path program 3 times [2018-04-11 14:54:49,919 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:49,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:49,926 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:50,300 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 14:54:50,300 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:54:50,300 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-04-11 14:54:50,300 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:50,301 INFO 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 14:54:50,301 INFO L182 omatonBuilderFactory]: Interpolants [68961#(and (= 0 main_~head~0.offset) (not (= 0 main_~head~0.base))), 68960#(and (not (= 0 |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|)), 68963#(and (= 0 main_~head~0.offset) (not (= 0 main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 68962#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base)) (not (= 0 main_~head~0.base))), 68965#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= 0 main_~x~0.base)) (= 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) main_~head~0.offset) (= (select |#valid| main_~x~0.base) 1)), 68964#(and (not (= 0 main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= |main_#t~malloc2.offset| main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 68967#(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 (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= 0 main_~head~0.base)) (not (= main_~x~0.base main_~head~0.base))), 68966#(and (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.offset|) (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= 0 main_~head~0.base))), 68969#(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~malloc2.base| 0)) (= (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)) (not (= main_~head~0.base |main_#t~malloc2.base|)) (not (= main_~x~0.base |main_#t~malloc2.base|))), 68968#(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 (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= 0 main_~head~0.base)) (not (= main_~x~0.base main_~head~0.base))), 68971#(and (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~head~0.offset) (not (= 0 main_~head~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|)) (not (= (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))), 68970#(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))) (= (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 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) 0))), 68973#(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 (= (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))), 68972#(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) main_~head~0.offset) (not (= 0 main_~head~0.base)) (not (= main_~x~0.base main_~head~0.base)) (not (= (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))), 68975#(and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (not (= 0 main_~head~0.base)) (= main_~x~0.base main_~head~0.base) (not (= (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 |#valid| main_~x~0.base) 1)), 68974#(and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~x~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) 0)) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (not (= 0 main_~head~0.base)) (= main_~x~0.base main_~head~0.base)), 68977#(not (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 68976#(and (not (= (select (select |#memory_$Pointer$.base| |main_#t~mem7.base|) |main_#t~mem7.offset|) 0)) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) |main_#t~mem7.offset|)) (= (select |#valid| main_~head~0.base) 1) (not (= 0 main_~head~0.base))), 68978#(not (= 0 |main_#t~mem8.base|)), 68959#false, 68958#true] [2018-04-11 14:54:50,301 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 14:54:50,301 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-11 14:54:50,301 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-11 14:54:50,301 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=373, Unknown=0, NotChecked=0, Total=420 [2018-04-11 14:54:50,301 INFO L87 Difference]: Start difference. First operand 658 states and 734 transitions. Second operand 21 states. [2018-04-11 14:54:51,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:51,269 INFO L93 Difference]: Finished difference Result 692 states and 767 transitions. [2018-04-11 14:54:51,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-11 14:54:51,269 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 69 [2018-04-11 14:54:51,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:51,270 INFO L225 Difference]: With dead ends: 692 [2018-04-11 14:54:51,270 INFO L226 Difference]: Without dead ends: 685 [2018-04-11 14:54:51,270 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 9 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=249, Invalid=1233, Unknown=0, NotChecked=0, Total=1482 [2018-04-11 14:54:51,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2018-04-11 14:54:51,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 658. [2018-04-11 14:54:51,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 658 states. [2018-04-11 14:54:51,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 733 transitions. [2018-04-11 14:54:51,273 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 733 transitions. Word has length 69 [2018-04-11 14:54:51,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:51,273 INFO L459 AbstractCegarLoop]: Abstraction has 658 states and 733 transitions. [2018-04-11 14:54:51,273 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-11 14:54:51,273 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 733 transitions. [2018-04-11 14:54:51,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-04-11 14:54:51,273 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:51,274 INFO L355 BasicCegarLoop]: trace histogram [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, 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 14:54:51,274 INFO L408 AbstractCegarLoop]: === Iteration 77 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:51,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1147267355, now seen corresponding path program 1 times [2018-04-11 14:54:51,274 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:51,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:51,279 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:51,450 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:51,451 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:54:51,451 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-04-11 14:54:51,451 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:51,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:51,451 INFO L182 omatonBuilderFactory]: Interpolants [70369#(and (= 0 |main_#t~malloc9.offset|) (not (= main_~x~0.base |main_#t~malloc9.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 70368#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 70371#(and (not (= main_~head~0.base |main_#t~mem10.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 70370#(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)), 70373#(= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)), 70372#(and (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 70375#(and (= |main_#t~mem12.offset| (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))), 70374#(= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)), 70377#(= 0 main_~next~0.offset), 70376#(and (= main_~next~0.offset (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))), 70379#(and (<= 0 main_~prev~0.offset) (<= main_~prev~0.offset 0)), 70378#(= 0 main_~x~0.offset), 70381#(and (<= 0 main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (<= (+ main_~x~0.offset main_~head~0.offset 8) (select |#length| main_~x~0.base))), 70380#(and (<= main_~head~0.offset 0) (<= 0 main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 70383#(and (<= 0 main_~head~0.offset) (<= (+ main_~head~0.offset 8) (select |#length| main_~head~0.base))), 70382#(and (<= (+ main_~head~0.offset 8) (select |#length| main_~x~0.base)) (<= 0 main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 70384#(and (<= (+ main_~x~0.offset 8) (select |#length| main_~x~0.base)) (<= 0 main_~x~0.offset)), 70365#true, 70367#(= 1 (select |#valid| main_~head~0.base)), 70366#false] [2018-04-11 14:54:51,452 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:51,452 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-11 14:54:51,452 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-11 14:54:51,452 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2018-04-11 14:54:51,452 INFO L87 Difference]: Start difference. First operand 658 states and 733 transitions. Second operand 20 states. [2018-04-11 14:54:52,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:52,161 INFO L93 Difference]: Finished difference Result 736 states and 812 transitions. [2018-04-11 14:54:52,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-04-11 14:54:52,161 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 70 [2018-04-11 14:54:52,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:52,162 INFO L225 Difference]: With dead ends: 736 [2018-04-11 14:54:52,162 INFO L226 Difference]: Without dead ends: 736 [2018-04-11 14:54:52,162 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=274, Invalid=1796, Unknown=0, NotChecked=0, Total=2070 [2018-04-11 14:54:52,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2018-04-11 14:54:52,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 691. [2018-04-11 14:54:52,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 691 states. [2018-04-11 14:54:52,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 778 transitions. [2018-04-11 14:54:52,166 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 778 transitions. Word has length 70 [2018-04-11 14:54:52,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:52,166 INFO L459 AbstractCegarLoop]: Abstraction has 691 states and 778 transitions. [2018-04-11 14:54:52,166 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-11 14:54:52,166 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 778 transitions. [2018-04-11 14:54:52,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-04-11 14:54:52,166 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:52,166 INFO L355 BasicCegarLoop]: trace histogram [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, 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 14:54:52,167 INFO L408 AbstractCegarLoop]: === Iteration 78 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:52,167 INFO L82 PathProgramCache]: Analyzing trace with hash -1205551002, now seen corresponding path program 1 times [2018-04-11 14:54:52,167 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:52,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:52,172 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:52,209 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-04-11 14:54:52,210 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 14:54:52,210 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 14:54:52,210 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:52,210 INFO 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 14:54:52,210 INFO L182 omatonBuilderFactory]: Interpolants [71865#false, 71864#true, 71867#(or (not (= 0 main_~prev~0.offset)) (not (= 0 main_~prev~0.base))), 71866#(or (not (= 0 main_~x~0.offset)) (not (= 0 main_~x~0.base))), 71868#(or (not (= 0 main_~head~0.offset)) (not (= 0 main_~head~0.base)))] [2018-04-11 14:54:52,210 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-04-11 14:54:52,210 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 14:54:52,211 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 14:54:52,211 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-11 14:54:52,211 INFO L87 Difference]: Start difference. First operand 691 states and 778 transitions. Second operand 5 states. [2018-04-11 14:54:52,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:52,329 INFO L93 Difference]: Finished difference Result 697 states and 782 transitions. [2018-04-11 14:54:52,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-11 14:54:52,330 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 71 [2018-04-11 14:54:52,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:52,331 INFO L225 Difference]: With dead ends: 697 [2018-04-11 14:54:52,331 INFO L226 Difference]: Without dead ends: 697 [2018-04-11 14:54:52,331 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 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 14:54:52,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2018-04-11 14:54:52,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 691. [2018-04-11 14:54:52,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 691 states. [2018-04-11 14:54:52,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 776 transitions. [2018-04-11 14:54:52,336 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 776 transitions. Word has length 71 [2018-04-11 14:54:52,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:52,336 INFO L459 AbstractCegarLoop]: Abstraction has 691 states and 776 transitions. [2018-04-11 14:54:52,336 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 14:54:52,336 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 776 transitions. [2018-04-11 14:54:52,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-04-11 14:54:52,337 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:52,337 INFO L355 BasicCegarLoop]: trace histogram [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] [2018-04-11 14:54:52,337 INFO L408 AbstractCegarLoop]: === Iteration 79 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:52,337 INFO L82 PathProgramCache]: Analyzing trace with hash -615979224, now seen corresponding path program 4 times [2018-04-11 14:54:52,338 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:52,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:52,365 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:52,843 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:52,844 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:54:52,844 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-04-11 14:54:52,844 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:52,844 INFO 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 14:54:52,844 INFO L182 omatonBuilderFactory]: Interpolants [73281#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~next~0.base) main_~next~0.offset)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset))) (not (= main_~x~0.base main_~next~0.base))), 73280#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem12.base|) |main_#t~mem12.offset|)) (not (= main_~x~0.base |main_#t~mem12.base|)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem12.base|) |main_#t~mem12.offset|)))), 73283#(and (= 8 (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))), 73282#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~next~0.base) main_~next~0.offset)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset)))), 73285#(and (= main_~next~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 8 (select |#length| main_~next~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 73284#(and (= |main_#t~mem12.offset| (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)) (= 8 (select |#length| |main_#t~mem12.base|))), 73287#(and (= 8 (select |#length| main_~x~0.base)) (= 0 main_~x~0.offset)), 73286#(and (= 0 main_~next~0.offset) (= 8 (select |#length| main_~next~0.base))), 73288#(and (<= 0 main_~prev~0.offset) (<= main_~prev~0.offset 0) (= 8 (select |#length| main_~prev~0.base))), 73265#false, 73264#true, 73267#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 73266#(= 1 (select |#valid| main_~head~0.base)), 73269#(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) (= (select |#valid| main_~x~0.base) 1)), 73268#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 73271#(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))), 73270#(and (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|) (= |main_#t~mem3.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1)), 73273#(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)) (= 0 |main_#t~malloc2.offset|) (= 8 (select |#length| |main_#t~malloc2.base|)) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~head~0.base |main_#t~malloc2.base|)) (not (= main_~x~0.base |main_#t~malloc2.base|))), 73272#(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))), 73275#(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))) (= 8 (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_~head~0.base |main_#t~mem3.base|)) (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) |main_#t~mem3.base|))), 73274#(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)) (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))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~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)))), 73277#(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))) (= 8 (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_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 73276#(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))) (= 8 (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_~head~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_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base))), 73279#(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))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 8 (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))))), 73278#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (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_~head~0.offset))) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset))))] [2018-04-11 14:54:52,844 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:52,844 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-04-11 14:54:52,844 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-04-11 14:54:52,845 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2018-04-11 14:54:52,845 INFO L87 Difference]: Start difference. First operand 691 states and 776 transitions. Second operand 25 states. [2018-04-11 14:54:54,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:54,282 INFO L93 Difference]: Finished difference Result 879 states and 982 transitions. [2018-04-11 14:54:54,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-04-11 14:54:54,282 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 71 [2018-04-11 14:54:54,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:54,283 INFO L225 Difference]: With dead ends: 879 [2018-04-11 14:54:54,283 INFO L226 Difference]: Without dead ends: 879 [2018-04-11 14:54:54,284 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=202, Invalid=1778, Unknown=0, NotChecked=0, Total=1980 [2018-04-11 14:54:54,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2018-04-11 14:54:54,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 695. [2018-04-11 14:54:54,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 695 states. [2018-04-11 14:54:54,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 780 transitions. [2018-04-11 14:54:54,287 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 780 transitions. Word has length 71 [2018-04-11 14:54:54,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:54,287 INFO L459 AbstractCegarLoop]: Abstraction has 695 states and 780 transitions. [2018-04-11 14:54:54,287 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-04-11 14:54:54,287 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 780 transitions. [2018-04-11 14:54:54,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-04-11 14:54:54,288 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:54,288 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 14:54:54,288 INFO L408 AbstractCegarLoop]: === Iteration 80 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:54,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1536852222, now seen corresponding path program 5 times [2018-04-11 14:54:54,288 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:54,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:54,303 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:54,981 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 14:54:54,981 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:54:54,981 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-04-11 14:54:54,981 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:54,982 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 14:54:54,982 INFO L182 omatonBuilderFactory]: Interpolants [74903#true, 74905#(= 0 |main_#t~malloc0.offset|), 74904#false, 74907#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base))), 74906#(= 0 main_~head~0.offset), 74909#(and (not (= |main_#t~malloc2.base| 0)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.offset 0) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 74908#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.offset 0) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 74911#(and (= 0 main_~head~0.offset) (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|) (= |main_#t~mem3.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) 0) 0))), 74910#(and (= 0 main_~head~0.offset) (= 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) (= (select |#valid| main_~x~0.base) 1) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) 0) 0))), 74913#(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)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) 0) 0))), 74912#(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)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) 0) 0))), 74915#(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_~x~0.base)) (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 (select |#memory_$Pointer$.base| main_~head~0.base) 0) 0)) (= (select |#valid| main_~x~0.base) 1)), 74914#(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 main_~head~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) 0) 0)) (not (= main_~head~0.base |main_#t~malloc2.base|)) (not (= main_~x~0.base |main_#t~malloc2.base|))), 74917#(and (= 0 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 (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)) (= 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 (= (select (select |#memory_$Pointer$.base| main_~head~0.base) 0) 0))), 74916#(and (= 0 main_~head~0.offset) (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (= |main_#t~mem3.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_~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) |main_#t~mem3.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) 0) 0))), 74919#(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_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) main_~head~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) 0)) (not (= main_~head~0.base (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)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))), 74918#(and (not (= main_~head~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_~head~0.base) main_~head~0.offset))) (= |main_#t~malloc2.offset| main_~head~0.offset) (not (= main_~x~0.base main_~head~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~malloc2.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))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) |main_#t~malloc2.offset|) 0))), 74921#(or (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)) (and (not (= main_~head~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_~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)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))))), 74920#(and (= |main_#t~mem3.offset| 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) |main_#t~mem3.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 (= (select (select |#memory_$Pointer$.base| main_~head~0.base) |main_#t~mem3.offset|) 0))), 74923#(or (and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (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_~head~0.offset))) (= main_~x~0.base main_~head~0.base)) (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)))), 74922#(or (and (not (= main_~head~0.base (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)) (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)))), 74925#(or (and (= |main_#t~mem12.offset| (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)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= |main_#t~mem12.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (not (= main_~x~0.base |main_#t~mem12.base|)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem12.base|) |main_#t~mem12.offset|))))), 74924#(or (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)))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| 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)))), 74927#(or (and (= 0 main_~next~0.offset) (= 0 main_~next~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset)))), 74926#(or (and (= main_~next~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~next~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)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset))) (not (= main_~x~0.base main_~next~0.base)))), 74929#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 74928#(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))), 74931#(= 1 (select |#valid| main_~next~0.base)), 74930#(= 1 (select |#valid| |main_#t~mem12.base|)), 74932#(= 1 (select |#valid| main_~x~0.base))] [2018-04-11 14:54:54,982 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 14:54:54,982 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-04-11 14:54:54,982 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-04-11 14:54:54,982 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=783, Unknown=0, NotChecked=0, Total=870 [2018-04-11 14:54:54,982 INFO L87 Difference]: Start difference. First operand 695 states and 780 transitions. Second operand 30 states. [2018-04-11 14:54:57,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:54:57,547 INFO L93 Difference]: Finished difference Result 917 states and 1010 transitions. [2018-04-11 14:54:57,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2018-04-11 14:54:57,547 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 71 [2018-04-11 14:54:57,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:54:57,548 INFO L225 Difference]: With dead ends: 917 [2018-04-11 14:54:57,549 INFO L226 Difference]: Without dead ends: 917 [2018-04-11 14:54:57,549 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2095 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1063, Invalid=6419, Unknown=0, NotChecked=0, Total=7482 [2018-04-11 14:54:57,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2018-04-11 14:54:57,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 771. [2018-04-11 14:54:57,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 771 states. [2018-04-11 14:54:57,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 869 transitions. [2018-04-11 14:54:57,553 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 869 transitions. Word has length 71 [2018-04-11 14:54:57,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:54:57,553 INFO L459 AbstractCegarLoop]: Abstraction has 771 states and 869 transitions. [2018-04-11 14:54:57,553 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-04-11 14:54:57,553 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 869 transitions. [2018-04-11 14:54:57,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-04-11 14:54:57,554 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:54:57,554 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 14:54:57,554 INFO L408 AbstractCegarLoop]: === Iteration 81 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:54:57,554 INFO L82 PathProgramCache]: Analyzing trace with hash -1536852221, now seen corresponding path program 4 times [2018-04-11 14:54:57,554 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:54:57,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:54:57,562 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:54:58,296 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 14:54:58,296 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:54:58,296 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2018-04-11 14:54:58,296 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:54:58,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:54:58,297 INFO L182 omatonBuilderFactory]: Interpolants [76737#(= 0 |main_#t~malloc0.offset|), 76736#false, 76739#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base))), 76738#(= 0 main_~head~0.offset), 76741#(and (= 0 main_~head~0.offset) (= main_~x~0.offset main_~head~0.offset) (= |main_#t~malloc2.offset| 0) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 76740#(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)), 76743#(and (= 0 main_~head~0.offset) (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|) (= 1 (select |#valid| main_~head~0.base)) (= 0 |main_#t~mem3.offset|) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 76742#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~x~0.base)) (= 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))), 76745#(and (= 0 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)) (= 1 (select |#valid| main_~head~0.base)) (= main_~x~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))), 76744#(and (= 0 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_~head~0.base)) (= main_~x~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))), 76747#(and (= 0 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)) (= main_~x~0.offset 0) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) main_~head~0.base)) (= 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)) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) main_~x~0.base))), 76746#(and (= 0 main_~head~0.offset) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 |main_#t~malloc2.offset|) (not (= |main_#t~malloc2.base| main_~head~0.base)) (= main_~x~0.offset 0) (not (= main_~x~0.base main_~head~0.base)) (not (= |main_#t~malloc2.base| main_~x~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 76749#(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)) 0)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~x~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)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 76748#(and (= 0 main_~head~0.offset) (not (= |main_#t~mem3.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 0 |main_#t~mem3.offset|) (not (= |main_#t~mem3.base| main_~head~0.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~mem3.base|)), 76751#(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_$Pointer$.offset| main_~x~0.base) 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)))) (< 3 (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)) (not (= main_~head~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)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 76750#(and (or (= |main_#t~malloc2.offset| main_~head~0.offset) (not (= main_~head~0.base |main_#t~malloc2.base|))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= main_~x~0.offset 0) (not (= main_~head~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_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~malloc2.base|)) (= main_~x~0.base (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))), 76753#(or (and (<= 4 (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_~head~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_~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))), 76752#(and (<= 4 (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)) (or (= |main_#t~mem3.offset| main_~head~0.offset) (not (= main_~head~0.base |main_#t~mem3.base|))) (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) |main_#t~mem3.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 76755#(or (and (<= 4 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) 0))) (= 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_~head~0.offset))) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) 0))) (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)))), 76754#(or (and (<= 4 (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_~head~0.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))) (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)))), 76757#(or (and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem12.base|) 0)) (not (= main_~x~0.base |main_#t~mem12.base|)) (<= 4 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem12.base|) 0))) (= |main_#t~mem12.offset| (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))) (and (= |main_#t~mem12.offset| (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)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= |main_#t~mem12.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 76756#(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 (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| 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)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (<= 4 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) 0))))), 76759#(or (and (= 0 main_~next~0.offset) (= 0 main_~next~0.base)) (and (= 0 main_~next~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~next~0.base) 0)) (<= 4 (select |#length| (select (select |#memory_$Pointer$.base| main_~next~0.base) 0))))), 76758#(or (and (= main_~next~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~next~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)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= main_~next~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~next~0.base) 0)) (<= 4 (select |#length| (select (select |#memory_$Pointer$.base| main_~next~0.base) 0))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (not (= main_~x~0.base main_~next~0.base)))), 76761#(and (<= 4 (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))), 76760#(or (and (<= 4 (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))), 76763#(and (= main_~next~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~next~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (<= 4 (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))), 76762#(and (<= 4 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= |main_#t~mem12.offset| (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)) (= |main_#t~mem12.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 76765#(and (<= 4 (select |#length| main_~x~0.base)) (= 0 main_~x~0.offset)), 76764#(and (= 0 main_~next~0.offset) (<= 4 (select |#length| main_~next~0.base))), 76735#true] [2018-04-11 14:54:58,297 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 14:54:58,297 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-04-11 14:54:58,297 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-04-11 14:54:58,297 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=843, Unknown=0, NotChecked=0, Total=930 [2018-04-11 14:54:58,297 INFO L87 Difference]: Start difference. First operand 771 states and 869 transitions. Second operand 31 states. [2018-04-11 14:55:01,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:55:01,242 INFO L93 Difference]: Finished difference Result 913 states and 1008 transitions. [2018-04-11 14:55:01,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2018-04-11 14:55:01,242 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 71 [2018-04-11 14:55:01,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:55:01,243 INFO L225 Difference]: With dead ends: 913 [2018-04-11 14:55:01,243 INFO L226 Difference]: Without dead ends: 913 [2018-04-11 14:55:01,243 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1718 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=834, Invalid=5646, Unknown=0, NotChecked=0, Total=6480 [2018-04-11 14:55:01,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2018-04-11 14:55:01,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 768. [2018-04-11 14:55:01,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 768 states. [2018-04-11 14:55:01,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 864 transitions. [2018-04-11 14:55:01,246 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 864 transitions. Word has length 71 [2018-04-11 14:55:01,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:55:01,247 INFO L459 AbstractCegarLoop]: Abstraction has 768 states and 864 transitions. [2018-04-11 14:55:01,247 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-04-11 14:55:01,247 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 864 transitions. [2018-04-11 14:55:01,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-04-11 14:55:01,247 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:55:01,247 INFO L355 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 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 14:55:01,247 INFO L408 AbstractCegarLoop]: === Iteration 82 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:55:01,247 INFO L82 PathProgramCache]: Analyzing trace with hash -204932519, now seen corresponding path program 9 times [2018-04-11 14:55:01,248 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:55:01,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:55:01,256 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:55:02,339 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 107 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:02,339 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:55:02,340 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2018-04-11 14:55:02,340 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:55:02,340 INFO 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 14:55:02,340 INFO L182 omatonBuilderFactory]: Interpolants [78547#true, 78549#(= 0 (select |#valid| 0)), 78548#false, 78551#(and (= 0 main_~head~0.offset) (= 0 (select |#valid| 0))), 78550#(and (= 0 |main_#t~malloc0.offset|) (= 0 (select |#valid| 0))), 78553#(and (= 0 main_~head~0.offset) (= main_~x~0.offset main_~head~0.offset) (= 0 (select |#valid| 0)) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 78552#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base)) (= 0 (select |#valid| 0))), 78555#(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) (= 0 (select |#valid| 0)) (= 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)), 78554#(and (= 0 main_~head~0.offset) (= 0 |main_#t~malloc2.offset|) (= main_~x~0.offset main_~head~0.offset) (= 0 (select |#valid| 0)) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 78557#(and (= 0 main_~head~0.offset) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 (select |#valid| 0)) (= (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))), 78556#(and (= 0 main_~head~0.offset) (not (= main_~head~0.base |main_#t~mem3.base|)) (= 0 (select |#valid| 0)) (= |main_#t~mem3.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 78559#(and (= 0 main_~head~0.offset) (or (= 1 (select |#valid| 0)) (and (= 0 (select |#valid| 0)) (= 0 (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_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= (select |#valid| main_~x~0.base) 1)), 78558#(and (= 0 main_~head~0.offset) (or (= 1 (select |#valid| 0)) (and (= 0 (select |#valid| 0)) (= 0 (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)) (not (= main_~head~0.base |main_#t~malloc2.base|))), 78561#(and (= 0 main_~head~0.offset) (or (= 1 (select |#valid| 0)) (and (= 0 (select |#valid| 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= 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))), 78560#(and (= 0 main_~head~0.offset) (or (= 1 (select |#valid| 0)) (and (= 0 (select |#valid| 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (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))) (= (select |#valid| main_~head~0.base) 1)), 78563#(and (= 0 main_~head~0.offset) (or (and (= 1 (select |#valid| main_~head~0.base)) (= 0 (select |#valid| 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 1 (select |#valid| 0))) (not (= (select |#valid| main_~head~0.base) 0)) (= 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)))), 78562#(and (= 0 main_~head~0.offset) (or (and (= 1 (select |#valid| main_~head~0.base)) (= 0 (select |#valid| 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 1 (select |#valid| 0))) (not (= (select |#valid| main_~head~0.base) 0)) (= 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)) (not (= main_~head~0.base |main_#t~malloc2.base|))), 78565#(and (= 0 main_~head~0.offset) (or (and (= 1 (select |#valid| main_~head~0.base)) (= 0 (select |#valid| 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 1 (select |#valid| 0))) (not (= (select |#valid| main_~head~0.base) 0)) (= 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))), 78564#(and (= 0 main_~head~0.offset) (or (and (= 1 (select |#valid| main_~head~0.base)) (= 0 (select |#valid| 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 1 (select |#valid| 0))) (not (= main_~head~0.base |main_#t~mem3.base|)) (not (= (select |#valid| main_~head~0.base) 0)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 78567#(and (= 0 main_~head~0.offset) (or (= 1 (select |#valid| 0)) (= 0 (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))) (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))))), 78566#(and (= 0 main_~head~0.offset) (or (= 1 (select |#valid| 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~malloc2.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~head~0.base |main_#t~malloc2.base|))), 78569#(and (= 0 main_~head~0.offset) (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)))) (or (= 1 (select |#valid| 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base))), 78568#(and (= 0 main_~head~0.offset) (or (= 1 (select |#valid| 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem3.base|)) (or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~mem3.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 78571#(and (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) main_~head~0.offset) (or (= 1 (select |#valid| 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~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))))), 78570#(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))) (= |main_#t~malloc2.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (or (= 1 (select |#valid| 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= |main_#t~malloc2.offset| main_~head~0.offset) (not (= main_~x~0.base main_~head~0.base))), 78573#(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))), 78572#(and (= |main_#t~mem3.offset| main_~head~0.offset) (or (= 1 (select |#valid| 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~mem3.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 78575#(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)))), 78574#(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)))), 78577#(or (not |main_#t~short6|) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 78576#(or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= |main_#t~mem4.offset| 0) (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) |main_#t~mem4.base|) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 78579#(= 1 (select |#valid| |main_#t~mem7.base|)), 78578#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 78580#(= 1 (select |#valid| main_~x~0.base))] [2018-04-11 14:55:02,340 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 107 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:02,340 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-04-11 14:55:02,341 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-04-11 14:55:02,341 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=999, Unknown=0, NotChecked=0, Total=1122 [2018-04-11 14:55:02,341 INFO L87 Difference]: Start difference. First operand 768 states and 864 transitions. Second operand 34 states. [2018-04-11 14:55:04,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:55:04,246 INFO L93 Difference]: Finished difference Result 796 states and 888 transitions. [2018-04-11 14:55:04,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-04-11 14:55:04,247 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 71 [2018-04-11 14:55:04,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:55:04,247 INFO L225 Difference]: With dead ends: 796 [2018-04-11 14:55:04,247 INFO L226 Difference]: Without dead ends: 796 [2018-04-11 14:55:04,247 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 819 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=754, Invalid=3278, Unknown=0, NotChecked=0, Total=4032 [2018-04-11 14:55:04,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2018-04-11 14:55:04,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 746. [2018-04-11 14:55:04,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 746 states. [2018-04-11 14:55:04,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 838 transitions. [2018-04-11 14:55:04,251 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 838 transitions. Word has length 71 [2018-04-11 14:55:04,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:55:04,251 INFO L459 AbstractCegarLoop]: Abstraction has 746 states and 838 transitions. [2018-04-11 14:55:04,251 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-04-11 14:55:04,251 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 838 transitions. [2018-04-11 14:55:04,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-04-11 14:55:04,252 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:55:04,252 INFO L355 BasicCegarLoop]: trace histogram [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, 1, 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 14:55:04,252 INFO L408 AbstractCegarLoop]: === Iteration 83 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:55:04,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1282672548, now seen corresponding path program 1 times [2018-04-11 14:55:04,252 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:55:04,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:55:04,257 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:55:04,369 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 14:55:04,369 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:55:04,369 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-04-11 14:55:04,369 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:55:04,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:04,370 INFO L182 omatonBuilderFactory]: Interpolants [80193#(= 0 |main_#t~mem12.offset|), 80192#(= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)), 80195#(= 0 main_~x~0.offset), 80194#(= 0 main_~next~0.offset), 80197#(= 0 main_~head~0.offset), 80196#(= 0 main_~prev~0.offset), 80183#true, 80185#(= 1 (select |#valid| main_~head~0.base)), 80184#false, 80187#(and (= 0 |main_#t~malloc9.offset|) (not (= main_~x~0.base |main_#t~malloc9.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 80186#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 80189#(and (not (= main_~head~0.base |main_#t~mem10.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 80188#(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)), 80191#(= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)), 80190#(and (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))] [2018-04-11 14:55:04,370 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 14:55:04,370 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-11 14:55:04,370 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-11 14:55:04,370 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2018-04-11 14:55:04,370 INFO L87 Difference]: Start difference. First operand 746 states and 838 transitions. Second operand 15 states. [2018-04-11 14:55:04,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:55:04,839 INFO L93 Difference]: Finished difference Result 780 states and 862 transitions. [2018-04-11 14:55:04,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-04-11 14:55:04,839 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 72 [2018-04-11 14:55:04,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:55:04,840 INFO L225 Difference]: With dead ends: 780 [2018-04-11 14:55:04,840 INFO L226 Difference]: Without dead ends: 780 [2018-04-11 14:55:04,840 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=198, Invalid=1062, Unknown=0, NotChecked=0, Total=1260 [2018-04-11 14:55:04,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2018-04-11 14:55:04,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 746. [2018-04-11 14:55:04,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 746 states. [2018-04-11 14:55:04,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 838 transitions. [2018-04-11 14:55:04,843 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 838 transitions. Word has length 72 [2018-04-11 14:55:04,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:55:04,844 INFO L459 AbstractCegarLoop]: Abstraction has 746 states and 838 transitions. [2018-04-11 14:55:04,844 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-11 14:55:04,844 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 838 transitions. [2018-04-11 14:55:04,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-04-11 14:55:04,844 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:55:04,844 INFO L355 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 14:55:04,844 INFO L408 AbstractCegarLoop]: === Iteration 84 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:55:04,844 INFO L82 PathProgramCache]: Analyzing trace with hash -2111092836, now seen corresponding path program 1 times [2018-04-11 14:55:04,845 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:55:04,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:55:04,851 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:55:05,126 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 14:55:05,126 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:55:05,127 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-04-11 14:55:05,127 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:55:05,127 INFO 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 14:55:05,127 INFO L182 omatonBuilderFactory]: Interpolants [81767#false, 81766#true, 81769#(= main_~head~0.offset 0), 81768#(= 0 |main_#t~malloc0.offset|), 81771#(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)), 81770#(and (= 1 (select |#valid| main_~head~0.base)) (= main_~head~0.offset 0)), 81773#(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)), 81772#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (not (= main_~x~0.base |main_#t~malloc2.base|))), 81775#(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)) (= main_~head~0.offset 0)), 81774#(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)) (= main_~head~0.offset 0)), 81777#(and (= 1 (select (select |#memory_int| 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) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 81776#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~head~0.offset 0)), 81779#(and (= 1 (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 4))) (= main_~head~0.offset 0)), 81778#(and (= 1 (select (select |#memory_int| main_~head~0.base) (+ main_~head~0.offset 4))) (not (= |main_#t~mem11.base| main_~head~0.base)) (= main_~head~0.offset 0)), 81781#(and (= 0 main_~prev~0.offset) (= 1 (select (select |#memory_int| main_~prev~0.base) (+ 0 4)))), 81780#(and (= 1 (select (select |#memory_int| main_~x~0.base) (+ 0 4))) (= 0 main_~x~0.offset)), 81783#(and (= 1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~prev~0.base) main_~prev~0.offset)) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.offset| main_~prev~0.base) main_~prev~0.offset))), 81782#(and (= 1 (select (select |#memory_int| (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))), 81785#(= 1 (select (select |#memory_int| main_~x~0.base) (+ main_~x~0.offset 4))), 81784#(and (= 1 (select (select |#memory_int| |main_#t~mem18.base|) (+ 0 4))) (= 0 |main_#t~mem18.offset|)), 81787#(= 1 main_~t1~0), 81786#(= 1 |main_#t~mem13|)] [2018-04-11 14:55:05,127 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 14:55:05,127 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-04-11 14:55:05,127 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-04-11 14:55:05,127 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2018-04-11 14:55:05,127 INFO L87 Difference]: Start difference. First operand 746 states and 838 transitions. Second operand 22 states. [2018-04-11 14:55:05,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:55:05,894 INFO L93 Difference]: Finished difference Result 861 states and 962 transitions. [2018-04-11 14:55:05,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-04-11 14:55:05,894 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 72 [2018-04-11 14:55:05,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:55:05,895 INFO L225 Difference]: With dead ends: 861 [2018-04-11 14:55:05,895 INFO L226 Difference]: Without dead ends: 861 [2018-04-11 14:55:05,895 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 517 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=338, Invalid=2014, Unknown=0, NotChecked=0, Total=2352 [2018-04-11 14:55:05,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2018-04-11 14:55:05,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 772. [2018-04-11 14:55:05,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 772 states. [2018-04-11 14:55:05,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 772 states to 772 states and 866 transitions. [2018-04-11 14:55:05,899 INFO L78 Accepts]: Start accepts. Automaton has 772 states and 866 transitions. Word has length 72 [2018-04-11 14:55:05,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:55:05,899 INFO L459 AbstractCegarLoop]: Abstraction has 772 states and 866 transitions. [2018-04-11 14:55:05,899 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-04-11 14:55:05,899 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states and 866 transitions. [2018-04-11 14:55:05,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-04-11 14:55:05,899 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:55:05,899 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 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 14:55:05,899 INFO L408 AbstractCegarLoop]: === Iteration 85 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:55:05,900 INFO L82 PathProgramCache]: Analyzing trace with hash 2090068469, now seen corresponding path program 4 times [2018-04-11 14:55:05,900 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:55:05,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:55:05,906 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:55:06,390 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 3 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:06,390 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:55:06,390 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2018-04-11 14:55:06,390 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:55:06,390 INFO 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 14:55:06,390 INFO L182 omatonBuilderFactory]: Interpolants [83475#true, 83477#(= 1 (select |#valid| main_~head~0.base)), 83476#false, 83479#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 83478#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 83481#(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)) (= (select |#valid| main_~head~0.base) 1)), 83480#(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) (= (select |#valid| main_~head~0.base) 1) (= main_~x~0.base main_~head~0.base)), 83483#(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_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1)), 83482#(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))), 83485#(and (= main_~x~0.offset main_~head~0.offset) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) 1) (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)), 83484#(and (= (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_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1)), 83487#(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)) (= (select |#valid| main_~x~0.base) 1)), 83486#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (= (select |#valid| |main_#t~mem7.base|) 1) (= (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))), 83489#(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_~x~0.base)) (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)))), 83488#(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))), 83491#(and (= main_~x~0.offset (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_~head~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_~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)))), 83490#(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~mem10.base|) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem10.base|)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem10.base|)) (= |main_#t~mem10.offset| (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)))), 83493#(and (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)) (select (select |#memory_$Pointer$.offset| 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))) (= 0 (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))) (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_~head~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)))) (= 0 (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))) (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))))), 83492#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~x~0.base)) (not (= main_~head~0.base main_~x~0.base)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.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)))) (not (= main_~head~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)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.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))))), 83495#(and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| |main_#t~mem12.base|) |main_#t~mem12.offset|))) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) (select (select |#memory_$Pointer$.base| |main_#t~mem12.base|) |main_#t~mem12.offset|))) (not (= main_~x~0.base |main_#t~mem12.base|)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem12.base|) |main_#t~mem12.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem12.base|) |main_#t~mem12.offset|))) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem12.base|) |main_#t~mem12.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem12.base|) |main_#t~mem12.offset|))) (= |main_#t~mem12.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 83494#(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| (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_$Pointer$.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| (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)))) (not (= main_~x~0.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)))) (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)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))))), 83497#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset)) (select (select |#memory_$Pointer$.offset| main_~next~0.base) main_~next~0.offset))) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset)) (select (select |#memory_$Pointer$.offset| main_~next~0.base) main_~next~0.offset))) (not (= main_~next~0.base (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset)))), 83496#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset)) (select (select |#memory_$Pointer$.offset| main_~next~0.base) main_~next~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset))) (= main_~next~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset)) (select (select |#memory_$Pointer$.offset| main_~next~0.base) main_~next~0.offset))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset))) (not (= main_~x~0.base main_~next~0.base))), 83499#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem12.base|) |main_#t~mem12.offset|)) (not (= main_~x~0.base |main_#t~mem12.base|)) (= 0 (select (select |#memory_$Pointer$.base| |main_#t~mem12.base|) |main_#t~mem12.offset|))), 83498#(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))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| 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)))), 83501#(and (= 0 (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~next~0.base) main_~next~0.offset))), 83500#(and (= 0 (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~next~0.base) main_~next~0.offset)) (not (= main_~x~0.base main_~next~0.base))), 83503#(and (= |main_#t~mem12.offset| (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)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= |main_#t~mem12.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 83502#(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))), 83505#(and (= 0 main_~next~0.offset) (= 0 main_~next~0.base)), 83504#(and (= main_~next~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~next~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)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 83506#(and (= 0 main_~x~0.base) (= 0 main_~x~0.offset))] [2018-04-11 14:55:06,390 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 3 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:06,391 INFO L442 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-04-11 14:55:06,391 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-04-11 14:55:06,391 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=906, Unknown=0, NotChecked=0, Total=992 [2018-04-11 14:55:06,391 INFO L87 Difference]: Start difference. First operand 772 states and 866 transitions. Second operand 32 states. [2018-04-11 14:55:07,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:55:07,815 INFO L93 Difference]: Finished difference Result 861 states and 966 transitions. [2018-04-11 14:55:07,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-04-11 14:55:07,815 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 72 [2018-04-11 14:55:07,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:55:07,816 INFO L225 Difference]: With dead ends: 861 [2018-04-11 14:55:07,816 INFO L226 Difference]: Without dead ends: 861 [2018-04-11 14:55:07,816 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 690 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=276, Invalid=3030, Unknown=0, NotChecked=0, Total=3306 [2018-04-11 14:55:07,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2018-04-11 14:55:07,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 778. [2018-04-11 14:55:07,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 778 states. [2018-04-11 14:55:07,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 872 transitions. [2018-04-11 14:55:07,821 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 872 transitions. Word has length 72 [2018-04-11 14:55:07,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:55:07,821 INFO L459 AbstractCegarLoop]: Abstraction has 778 states and 872 transitions. [2018-04-11 14:55:07,821 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-04-11 14:55:07,821 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 872 transitions. [2018-04-11 14:55:07,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-04-11 14:55:07,822 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:55:07,822 INFO L355 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 14:55:07,822 INFO L408 AbstractCegarLoop]: === Iteration 86 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:55:07,823 INFO L82 PathProgramCache]: Analyzing trace with hash -1547073693, now seen corresponding path program 10 times [2018-04-11 14:55:07,823 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:55:07,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:55:07,836 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:55:08,576 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:08,576 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:55:08,576 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2018-04-11 14:55:08,577 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:55:08,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:08,577 INFO L182 omatonBuilderFactory]: Interpolants [85199#false, 85198#true, 85201#(= 0 main_~head~0.offset), 85200#(= 0 |main_#t~malloc0.offset|), 85203#(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)), 85202#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base))), 85205#(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) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 85204#(and (= 0 main_~head~0.offset) (= 0 |main_#t~malloc2.offset|) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 85207#(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)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 85206#(and (= 0 main_~head~0.offset) (not (= main_~head~0.base |main_#t~mem3.base|)) (= |main_#t~mem3.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem3.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 85209#(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)) (= 0 |main_#t~malloc2.offset|) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~head~0.base |main_#t~malloc2.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base |main_#t~malloc2.base|))), 85208#(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)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 85211#(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))) (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (= |main_#t~mem3.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_~head~0.base) 1) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 85210#(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))) (= (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_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 85213#(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))) (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 (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~malloc2.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))) (not (= main_~head~0.base |main_#t~malloc2.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 85212#(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))) (= (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_~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))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 85215#(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))) (not (= main_~head~0.base |main_#t~mem3.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|)) (= 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))))), 85214#(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))) (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 |#valid| main_~x~0.base)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 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))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 85217#(and (or (= 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~malloc2.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~malloc2.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_#t~malloc2.offset| main_~head~0.offset) (or (= |main_#t~malloc2.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))) (= 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_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 85216#(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))) (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)) (= 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))))), 85219#(and (= |main_#t~mem3.offset| main_~head~0.offset) (or (= |main_#t~mem3.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))) (= 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))))) (= |main_#t~mem3.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (or (= 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~mem3.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 85218#(and (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)) (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))))) (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) main_~head~0.offset) (or (= 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| main_~x~0.base) main_~x~0.offset) (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)) (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 85221#(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))) (or (= 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))) (= 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)))))) (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)))), 85220#(or (and (not (= main_~x~0.base main_~head~0.base)) (or (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))) (and (or (= 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))) (= 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_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))))) (or (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))) (= 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))))) (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base))), 85223#(or (and (= |main_#t~mem4.offset| 0) (= |main_#t~mem4.base| (select (select |#memory_$Pointer$.base| 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))) (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)))) (= 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)))))), 85222#(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))) (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)))) (= 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)))))), 85225#(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))) (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)))) (= 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))))), 85224#(or (not |main_#t~short6|) (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))) (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)))) (= 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)))))), 85227#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 85226#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem7.base|) |main_#t~mem7.offset|)) (or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem7.base|) |main_#t~mem7.offset|))) (= 0 (select (select |#memory_$Pointer$.base| |main_#t~mem7.base|) |main_#t~mem7.offset|)))), 85229#(or (not |main_#t~short6|) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 85228#(or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= |main_#t~mem4.offset| 0) (= |main_#t~mem4.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 85231#(= 1 (select |#valid| |main_#t~mem7.base|)), 85230#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 85232#(= 1 (select |#valid| main_~x~0.base))] [2018-04-11 14:55:08,577 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:08,577 INFO L442 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-04-11 14:55:08,577 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-04-11 14:55:08,578 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=1067, Unknown=0, NotChecked=0, Total=1190 [2018-04-11 14:55:08,578 INFO L87 Difference]: Start difference. First operand 778 states and 872 transitions. Second operand 35 states. [2018-04-11 14:55:12,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:55:12,392 INFO L93 Difference]: Finished difference Result 941 states and 1040 transitions. [2018-04-11 14:55:12,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2018-04-11 14:55:12,392 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 72 [2018-04-11 14:55:12,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:55:12,392 INFO L225 Difference]: With dead ends: 941 [2018-04-11 14:55:12,392 INFO L226 Difference]: Without dead ends: 941 [2018-04-11 14:55:12,393 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2439 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1427, Invalid=7315, Unknown=0, NotChecked=0, Total=8742 [2018-04-11 14:55:12,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2018-04-11 14:55:12,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 810. [2018-04-11 14:55:12,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 810 states. [2018-04-11 14:55:12,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 810 states to 810 states and 910 transitions. [2018-04-11 14:55:12,397 INFO L78 Accepts]: Start accepts. Automaton has 810 states and 910 transitions. Word has length 72 [2018-04-11 14:55:12,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:55:12,397 INFO L459 AbstractCegarLoop]: Abstraction has 810 states and 910 transitions. [2018-04-11 14:55:12,397 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-04-11 14:55:12,398 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 910 transitions. [2018-04-11 14:55:12,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-04-11 14:55:12,398 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:55:12,398 INFO L355 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 14:55:12,398 INFO L408 AbstractCegarLoop]: === Iteration 87 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:55:12,398 INFO L82 PathProgramCache]: Analyzing trace with hash -1547073692, now seen corresponding path program 7 times [2018-04-11 14:55:12,399 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:55:12,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:55:12,406 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:55:13,485 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:13,485 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:55:13,485 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2018-04-11 14:55:13,485 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:55:13,485 INFO 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 14:55:13,486 INFO L182 omatonBuilderFactory]: Interpolants [87105#(= 0 main_~head~0.offset), 87104#(= 0 |main_#t~malloc0.offset|), 87107#(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)), 87106#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base))), 87109#(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) (= 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)), 87108#(and (= 0 main_~head~0.offset) (= main_~x~0.offset main_~head~0.offset) (= |main_#t~malloc2.offset| 0) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 87111#(and (= 0 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 0) (= (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))), 87110#(and (= 0 main_~head~0.offset) (= |main_#t~mem3.offset| 0) (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)) (= (select |#valid| main_~head~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 87113#(and (= 0 main_~head~0.offset) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 |main_#t~malloc2.offset|) (= 8 (select |#length| |main_#t~malloc2.base|)) (= 1 (select |#valid| main_~head~0.base)) (= main_~x~0.offset 0) (not (= main_~x~0.base main_~head~0.base)) (not (= |main_#t~malloc2.base| main_~x~0.base)) (not (= main_~head~0.base |main_#t~malloc2.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 87112#(and (= 0 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)) (= main_~x~0.offset 0) (= (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))), 87115#(and (= 0 main_~head~0.offset) (not (= |main_#t~mem3.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 8 (select |#length| |main_#t~mem3.base|)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~head~0.base |main_#t~mem3.base|)) (= 1 (select |#valid| main_~head~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 0 |main_#t~mem3.offset|) (= 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~mem3.base|)), 87114#(and (= 0 main_~head~0.offset) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 1 (select |#valid| main_~x~0.base)) (= 1 (select |#valid| main_~head~0.base)) (= main_~x~0.offset 0) (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)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0)) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) main_~x~0.base))), 87117#(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)) 0)) (= 8 (select |#length| main_~x~0.base)) (= main_~x~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)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~malloc2.base|)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.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))), 87116#(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)) 0)) (= 8 (select |#length| main_~x~0.base)) (= 1 (select |#valid| main_~head~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= main_~x~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)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 87119#(and (= 0 main_~head~0.offset) (<= 4 (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_~head~0.base |main_#t~mem3.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 87118#(and (= 0 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))) (< 3 (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)) (or (= (select |#length| main_~x~0.base) 8) (and (= 8 (select |#length| (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_~head~0.base) main_~head~0.offset)) 0)))) (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)) (or (not (= (select |#length| main_~x~0.base) 8)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))), 87121#(and (<= 4 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (or (= |main_#t~malloc2.offset| main_~head~0.offset) (not (= main_~head~0.base |main_#t~malloc2.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))) (= |main_#t~malloc2.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))), 87120#(and (= 0 main_~head~0.offset) (<= 4 (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_~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))), 87123#(and (<= 4 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (= |main_#t~mem3.offset| 0) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (or (= |main_#t~mem3.offset| main_~head~0.offset) (not (= main_~head~0.base |main_#t~mem3.base|))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 87122#(and (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0) (<= 4 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (or (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) 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)))) (= 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))), 87125#(or (and (or (and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (and (<= 4 (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)))), 87124#(or (and (or (and (<= 4 (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_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) 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 0))) (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))), 87127#(or (and (= |main_#t~mem4.offset| 0) (= |main_#t~mem4.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= |main_#t~mem4.offset| 0) (or (and (= |main_#t~mem4.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)) 0)) (<= 4 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) 0)))) (and (= |main_#t~mem4.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)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) 0)))))), 87126#(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 (or (and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) 0)) (<= 4 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) 0)))) (and (= 0 (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)))), 87129#(or (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))) (<= 4 (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))))) (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))))), 87128#(or (not |main_#t~short6|) (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))) (<= 4 (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))))) (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))))), 87131#(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 (<= 4 (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)))), 87130#(or (and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem7.base|) |main_#t~mem7.offset|)) (= 0 (select (select |#memory_$Pointer$.base| |main_#t~mem7.base|) |main_#t~mem7.offset|))) (and (<= 4 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem7.base|) |main_#t~mem7.offset|))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem7.base|) |main_#t~mem7.offset|)))), 87133#(and (or (not |main_#t~short6|) (and (<= 4 (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)))) (= (select |#valid| main_~x~0.base) 1)), 87132#(and (or (and (= |main_#t~mem4.offset| 0) (= |main_#t~mem4.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (<= 4 (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)))) (= (select |#valid| main_~x~0.base) 1)), 87135#(and (<= 4 (select |#length| |main_#t~mem7.base|)) (= 0 |main_#t~mem7.offset|)), 87134#(and (<= 4 (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)) (= (select |#valid| main_~x~0.base) 1)), 87136#(and (<= 4 (select |#length| main_~x~0.base)) (= main_~x~0.offset 0)), 87103#false, 87102#true] [2018-04-11 14:55:13,486 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:13,486 INFO L442 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-04-11 14:55:13,486 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-04-11 14:55:13,486 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=1058, Unknown=0, NotChecked=0, Total=1190 [2018-04-11 14:55:13,486 INFO L87 Difference]: Start difference. First operand 810 states and 910 transitions. Second operand 35 states. [2018-04-11 14:55:19,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:55:19,027 INFO L93 Difference]: Finished difference Result 990 states and 1092 transitions. [2018-04-11 14:55:19,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2018-04-11 14:55:19,027 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 72 [2018-04-11 14:55:19,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:55:19,028 INFO L225 Difference]: With dead ends: 990 [2018-04-11 14:55:19,028 INFO L226 Difference]: Without dead ends: 990 [2018-04-11 14:55:19,028 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3524 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=1836, Invalid=9936, Unknown=0, NotChecked=0, Total=11772 [2018-04-11 14:55:19,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2018-04-11 14:55:19,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 818. [2018-04-11 14:55:19,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 818 states. [2018-04-11 14:55:19,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 920 transitions. [2018-04-11 14:55:19,032 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 920 transitions. Word has length 72 [2018-04-11 14:55:19,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:55:19,032 INFO L459 AbstractCegarLoop]: Abstraction has 818 states and 920 transitions. [2018-04-11 14:55:19,032 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-04-11 14:55:19,032 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 920 transitions. [2018-04-11 14:55:19,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-04-11 14:55:19,033 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:55:19,033 INFO L355 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 14:55:19,033 INFO L408 AbstractCegarLoop]: === Iteration 88 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:55:19,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1437232812, now seen corresponding path program 1 times [2018-04-11 14:55:19,033 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:55:19,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:55:19,040 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:55:19,253 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:19,253 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:55:19,253 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-04-11 14:55:19,253 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:55:19,253 INFO 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 14:55:19,254 INFO L182 omatonBuilderFactory]: Interpolants [89093#true, 89095#(= 1 (select |#valid| main_~head~0.base)), 89094#false, 89097#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 89096#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 89099#(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))), 89098#(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)), 89101#(not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 89100#(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))), 89103#(and (= 0 main_~prev~0.offset) (= 0 main_~prev~0.base) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 89102#(and (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)), 89105#(and (= 0 main_~prev~0.offset) (= 0 main_~prev~0.base) (not (= main_~x~0.base main_~next~0.base))), 89104#(and (= 0 main_~prev~0.offset) (= 0 main_~prev~0.base) (not (= main_~x~0.base |main_#t~mem12.base|))), 89107#(and (not (= main_~x~0.base main_~prev~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~prev~0.base) main_~prev~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~prev~0.base) main_~prev~0.offset))), 89106#(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)) (not (= main_~x~0.base main_~next~0.base))), 89109#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~prev~0.base) main_~prev~0.offset)) (select (select |#memory_$Pointer$.offset| main_~prev~0.base) main_~prev~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~prev~0.base) main_~prev~0.offset)) (select (select |#memory_$Pointer$.offset| main_~prev~0.base) main_~prev~0.offset)))), 89108#(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)))), 89111#(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))), 89110#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem17.base|) |main_#t~mem17.offset|)) (= 0 (select (select |#memory_$Pointer$.base| |main_#t~mem17.base|) |main_#t~mem17.offset|))), 89113#(and (= 0 main_~x~0.base) (= 0 main_~x~0.offset)), 89112#(and (= 0 |main_#t~mem18.base|) (= 0 |main_#t~mem18.offset|))] [2018-04-11 14:55:19,254 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:19,254 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-11 14:55:19,254 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-11 14:55:19,254 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2018-04-11 14:55:19,254 INFO L87 Difference]: Start difference. First operand 818 states and 920 transitions. Second operand 21 states. [2018-04-11 14:55:20,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:55:20,059 INFO L93 Difference]: Finished difference Result 886 states and 993 transitions. [2018-04-11 14:55:20,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-04-11 14:55:20,059 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 73 [2018-04-11 14:55:20,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:55:20,060 INFO L225 Difference]: With dead ends: 886 [2018-04-11 14:55:20,060 INFO L226 Difference]: Without dead ends: 886 [2018-04-11 14:55:20,060 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=198, Invalid=1608, Unknown=0, NotChecked=0, Total=1806 [2018-04-11 14:55:20,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2018-04-11 14:55:20,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 824. [2018-04-11 14:55:20,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 824 states. [2018-04-11 14:55:20,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 926 transitions. [2018-04-11 14:55:20,063 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 926 transitions. Word has length 73 [2018-04-11 14:55:20,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:55:20,064 INFO L459 AbstractCegarLoop]: Abstraction has 824 states and 926 transitions. [2018-04-11 14:55:20,064 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-11 14:55:20,064 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 926 transitions. [2018-04-11 14:55:20,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-04-11 14:55:20,064 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:55:20,064 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 14:55:20,064 INFO L408 AbstractCegarLoop]: === Iteration 89 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:55:20,064 INFO L82 PathProgramCache]: Analyzing trace with hash 317395385, now seen corresponding path program 11 times [2018-04-11 14:55:20,065 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:55:20,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:55:20,073 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:55:20,702 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:20,703 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:55:20,703 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2018-04-11 14:55:20,703 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:55:20,703 INFO 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 14:55:20,703 INFO L182 omatonBuilderFactory]: Interpolants [90881#(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))) (= |main_#t~mem3.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)) |main_#t~mem3.base|) (not (= main_~head~0.base |main_#t~mem3.base|)) (= (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~mem3.base|))), 90880#(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))) (= 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)), 90883#(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))) (= 1 (select |#valid| main_~x~0.base)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (= main_~x~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)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 90882#(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))) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (= main_~x~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)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 90885#(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 (= (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_~x~0.base) main_~x~0.offset) 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 0) (= 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)))), 90884#(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_~x~0.offset 0) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~malloc2.offset| main_~head~0.offset) (not (= main_~x~0.base main_~head~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~malloc2.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))) (not (= main_~x~0.base |main_#t~malloc2.base|))), 90887#(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))) (not (= 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_~x~0.base (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))) 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))) (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base))), 90886#(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~mem3.offset| main_~head~0.offset) (= |main_#t~mem3.base| (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))) 0)) (not (= (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~mem3.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|))), 90889#(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 (= 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| (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))) 0))))), 90888#(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))) (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.base (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))) 0))) (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)))), 90891#(or (and (= |main_#t~mem4.offset| 0) (= |main_#t~mem4.base| (select (select |#memory_$Pointer$.base| 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| (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))) (= 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))))), 90890#(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| (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))) (= 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))))), 90893#(and (= 1 (select |#valid| (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))) (= 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)))), 90892#(or (not |main_#t~short6|) (and (= 1 (select |#valid| (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))) (= 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))))), 90895#(and (= 1 (select |#valid| (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| main_~x~0.base) main_~x~0.offset))), 90894#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem7.base|) |main_#t~mem7.offset|)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem7.base|) |main_#t~mem7.offset|))), 90897#(= 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)))), 90896#(and (= |main_#t~mem4.offset| 0) (= |main_#t~mem4.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) 0)))), 90899#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 90898#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem7.base|) |main_#t~mem7.offset|))), 90901#(= 1 (select |#valid| main_~x~0.base)), 90900#(= 1 (select |#valid| |main_#t~mem7.base|)), 90869#false, 90868#true, 90871#(= 0 main_~head~0.offset), 90870#(= 0 |main_#t~malloc0.offset|), 90873#(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)), 90872#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base))), 90875#(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)), 90874#(and (= 0 main_~head~0.offset) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 90877#(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))), 90876#(and (= 0 main_~head~0.offset) (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|) (= |main_#t~mem3.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1)), 90879#(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)) (= |main_#t~malloc2.offset| 0) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~head~0.base |main_#t~malloc2.base|)) (not (= main_~x~0.base |main_#t~malloc2.base|))), 90878#(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)))] [2018-04-11 14:55:20,703 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:20,703 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-04-11 14:55:20,704 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-04-11 14:55:20,704 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1022, Unknown=0, NotChecked=0, Total=1122 [2018-04-11 14:55:20,704 INFO L87 Difference]: Start difference. First operand 824 states and 926 transitions. Second operand 34 states. [2018-04-11 14:55:23,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:55:23,665 INFO L93 Difference]: Finished difference Result 905 states and 999 transitions. [2018-04-11 14:55:23,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2018-04-11 14:55:23,666 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 73 [2018-04-11 14:55:23,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:55:23,666 INFO L225 Difference]: With dead ends: 905 [2018-04-11 14:55:23,666 INFO L226 Difference]: Without dead ends: 905 [2018-04-11 14:55:23,667 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1863 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=937, Invalid=6373, Unknown=0, NotChecked=0, Total=7310 [2018-04-11 14:55:23,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2018-04-11 14:55:23,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 827. [2018-04-11 14:55:23,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 827 states. [2018-04-11 14:55:23,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 930 transitions. [2018-04-11 14:55:23,671 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 930 transitions. Word has length 73 [2018-04-11 14:55:23,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:55:23,671 INFO L459 AbstractCegarLoop]: Abstraction has 827 states and 930 transitions. [2018-04-11 14:55:23,671 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-04-11 14:55:23,671 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 930 transitions. [2018-04-11 14:55:23,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-04-11 14:55:23,672 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:55:23,672 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 14:55:23,672 INFO L408 AbstractCegarLoop]: === Iteration 90 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:55:23,672 INFO L82 PathProgramCache]: Analyzing trace with hash 317395386, now seen corresponding path program 8 times [2018-04-11 14:55:23,673 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:55:23,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:55:23,679 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:55:24,270 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:24,270 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:55:24,270 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2018-04-11 14:55:24,270 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:55:24,270 INFO 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 14:55:24,271 INFO L182 omatonBuilderFactory]: Interpolants [92739#false, 92738#true, 92741#(= 0 main_~head~0.offset), 92740#(= 0 |main_#t~malloc0.offset|), 92743#(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)), 92742#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base))), 92745#(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)), 92744#(and (= 0 main_~head~0.offset) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 92747#(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))), 92746#(and (= 0 main_~head~0.offset) (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|) (= |main_#t~mem3.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1)), 92749#(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 main_~head~0.base)) (not (= main_~head~0.base |main_#t~malloc2.base|)) (not (= main_~x~0.base |main_#t~malloc2.base|))), 92748#(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))), 92751#(and (= 0 main_~head~0.offset) (= |main_#t~mem3.offset| (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)) |main_#t~mem3.base|) (not (= main_~head~0.base |main_#t~mem3.base|)) (= (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~mem3.base|))), 92750#(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)), 92753#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset (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 |#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)))), 92752#(and (= 0 main_~head~0.offset) (= main_~x~0.offset (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 |#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)))), 92755#(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_$Pointer$.offset| main_~x~0.base) 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)))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.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_~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))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.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))))), 92754#(and (or (= |main_#t~malloc2.offset| main_~head~0.offset) (not (= main_~head~0.base |main_#t~malloc2.base|))) (= 0 |main_#t~malloc2.offset|) (= 8 (select |#length| |main_#t~malloc2.base|)) (= main_~x~0.offset (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))) (not (= main_~x~0.base main_~head~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~malloc2.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))) (not (= main_~x~0.base |main_#t~malloc2.base|))), 92757#(or (and (not (= 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 (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| (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_$Pointer$.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)))) (= 8 (select |#length| (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))) (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)))))) (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base))), 92756#(and (or (= |main_#t~mem3.offset| main_~head~0.offset) (not (= main_~head~0.base |main_#t~mem3.base|))) (not (= (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~mem3.base|)) (= 0 (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))) (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 (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|)) (= 8 (select |#length| (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))) (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)))))), 92759#(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| (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)))) (= 8 (select |#length| (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))) (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))))))), 92758#(or (and (= 0 (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))) (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)))) (= 8 (select |#length| (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))) (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)))))) (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)))), 92761#(or (and (= 0 (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))) (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)))) (= 8 (select |#length| (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))) (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)))))) (not |main_#t~short6|)), 92760#(or (and (= 0 (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))) (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)))) (= 8 (select |#length| (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))) (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)))))) (and (= |main_#t~mem4.offset| 0) (= |main_#t~mem4.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 92763#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem7.base|) |main_#t~mem7.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem7.base|) |main_#t~mem7.offset|))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem7.base|) |main_#t~mem7.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem7.base|) |main_#t~mem7.offset|))))), 92762#(and (= 0 (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))) (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)))) (= 8 (select |#length| (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))) (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)))))), 92765#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem7.base|) |main_#t~mem7.offset|)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem7.base|) |main_#t~mem7.offset|)))), 92764#(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))) (= 8 (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))))), 92767#(and (= 8 (select |#length| |main_#t~mem7.base|)) (= 0 |main_#t~mem7.offset|)), 92766#(and (= 8 (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))), 92768#(and (= 8 (select |#length| main_~x~0.base)) (= main_~x~0.offset 0))] [2018-04-11 14:55:24,271 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:24,271 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-04-11 14:55:24,271 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-04-11 14:55:24,271 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=843, Unknown=0, NotChecked=0, Total=930 [2018-04-11 14:55:24,271 INFO L87 Difference]: Start difference. First operand 827 states and 930 transitions. Second operand 31 states. [2018-04-11 14:55:27,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:55:27,079 INFO L93 Difference]: Finished difference Result 923 states and 1019 transitions. [2018-04-11 14:55:27,080 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-04-11 14:55:27,080 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 73 [2018-04-11 14:55:27,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:55:27,080 INFO L225 Difference]: With dead ends: 923 [2018-04-11 14:55:27,081 INFO L226 Difference]: Without dead ends: 923 [2018-04-11 14:55:27,081 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1160 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=632, Invalid=4480, Unknown=0, NotChecked=0, Total=5112 [2018-04-11 14:55:27,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2018-04-11 14:55:27,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 834. [2018-04-11 14:55:27,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 834 states. [2018-04-11 14:55:27,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 938 transitions. [2018-04-11 14:55:27,086 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 938 transitions. Word has length 73 [2018-04-11 14:55:27,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:55:27,086 INFO L459 AbstractCegarLoop]: Abstraction has 834 states and 938 transitions. [2018-04-11 14:55:27,086 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-04-11 14:55:27,086 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 938 transitions. [2018-04-11 14:55:27,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-04-11 14:55:27,087 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:55:27,087 INFO L355 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2018-04-11 14:55:27,087 INFO L408 AbstractCegarLoop]: === Iteration 91 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:55:27,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1981614136, now seen corresponding path program 3 times [2018-04-11 14:55:27,088 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:55:27,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:55:27,100 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:55:28,701 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:28,701 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:55:28,701 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2018-04-11 14:55:28,701 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:55:28,701 INFO 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 14:55:28,702 INFO L182 omatonBuilderFactory]: Interpolants [94609#false, 94608#true, 94611#(and (= 0 |main_#t~malloc0.offset|) (= (select |#valid| 0) 0)), 94610#(= (select |#valid| 0) 0), 94613#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base)) (= (select |#valid| 0) 0)), 94612#(and (= 0 main_~head~0.offset) (= (select |#valid| 0) 0)), 94615#(and (= 0 main_~head~0.offset) (= 0 |main_#t~malloc2.offset|) (= main_~x~0.offset main_~head~0.offset) (= (select |#valid| 0) 0) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 94614#(and (= 0 main_~head~0.offset) (= main_~x~0.offset main_~head~0.offset) (= (select |#valid| 0) 0) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 94617#(and (= 0 main_~head~0.offset) (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select |#valid| 0) 0) (= |main_#t~mem3.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem3.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 94616#(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| 0) 0) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 94619#(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| 0) 0) (= (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))), 94618#(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| 0) 0) (= (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))), 94621#(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)) (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)) (= (select |#valid| 0) 0) (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))), 94620#(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_~head~0.base)) (= (select |#valid| 0) 0) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~head~0.base |main_#t~malloc2.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base |main_#t~malloc2.base|))), 94623#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (or (= 1 (select |#valid| 0)) (and (= 1 (select |#valid| main_~head~0.base)) (= (select |#valid| 0) 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)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 94622#(and (= 0 main_~head~0.offset) (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))) (or (= 1 (select |#valid| 0)) (and (= 1 (select |#valid| main_~head~0.base)) (= (select |#valid| 0) 0))) (= |main_#t~mem3.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~mem3.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 94625#(and (= 0 main_~head~0.offset) (or (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)))) (= 1 (select |#valid| 0))) (= 1 (select |#valid| main_~x~0.base)) (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) main_~head~0.offset) (not (= (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))) (= 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))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 94624#(and (= 0 main_~head~0.offset) (or (and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~malloc2.base|))) (= 1 (select |#valid| 0))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~malloc2.offset| main_~head~0.offset) (not (= main_~x~0.base main_~head~0.base)) (not (= |main_#t~malloc2.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)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 94627#(and (or (and (= 0 main_~head~0.offset) (not (= main_~x~0.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)) (= 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))))) (= main_~x~0.base main_~head~0.base)) (or (= 1 (select |#valid| 0)) (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_~x~0.offset main_~head~0.offset)), 94626#(and (= 0 main_~head~0.offset) (not (= |main_#t~mem3.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~mem3.offset| main_~head~0.offset) (or (= 1 (select |#valid| 0)) (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))))) (= 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))))), 94629#(and (or (and (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))) (and (= |main_#t~malloc2.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_#t~malloc2.offset| main_~head~0.offset) (or (= |main_#t~malloc2.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))) (= 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_~x~0.base main_~head~0.base)))) (or (= 1 (select |#valid| 0)) (and (not (= main_~x~0.base main_~head~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~malloc2.base|)))) (= 8 (select |#length| |main_#t~malloc2.base|)) (= main_~x~0.offset main_~head~0.offset) (= |main_#t~malloc2.offset| 0)), 94628#(and (or (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 (= main_~x~0.base main_~head~0.base)) (= 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))))) (and (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.base main_~head~0.base))) (or (= 1 (select |#valid| 0)) (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_~x~0.offset main_~head~0.offset)), 94631#(or (and (= |main_#t~mem3.offset| 0) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem3.base|)) (or (and (= |main_#t~mem3.offset| main_~head~0.offset) (or (= |main_#t~mem3.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))) (= 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 (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|))) (= 1 (select |#valid| 0))) (= |main_#t~mem3.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (and (= |main_#t~mem3.offset| main_~head~0.offset) (or (= |main_#t~mem3.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))) (= 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))))) (or (and (= |main_#t~mem3.offset| main_~head~0.offset) (or (= |main_#t~mem3.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))) (= 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 (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|))) (= 1 (select |#valid| 0))) (= |main_#t~mem3.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 94630#(and (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (or (and (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)) (and (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)) (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))))) (= (select (select |#memory_$Pointer$.offset| 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) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= main_~x~0.offset main_~head~0.offset) (or (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 |#valid| 0)))), 94633#(or (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)) (or (= 1 (select |#valid| 0)) (and (= 1 (select |#valid| main_~x~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)))))) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~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))) (and (= 1 (select |#valid| main_~x~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))))) (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| 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 0) (or (= 1 (select |#valid| 0)) (and (= 1 (select |#valid| main_~x~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)))))) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 94632#(or (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| 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 0) (= 1 (select |#valid| 0)) (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)) (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| 0)) (not (= main_~x~0.base main_~head~0.base))) (and (or (= 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))) (= 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_~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)))), 94635#(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))) (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| 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)) 0)) (= 1 (select |#valid| 0)))), 94634#(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)))) (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| 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)) 0)) (= 1 (select |#valid| 0)))), 94637#(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)))) (not |main_#t~short6|) (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| 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)) 0)) (= 1 (select |#valid| 0)))), 94636#(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 (= |main_#t~mem4.offset| 0) (= |main_#t~mem4.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| 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)) 0)) (= 1 (select |#valid| 0)))), 94639#(or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem7.base|) |main_#t~mem7.offset|))) (and (= 8 (select |#length| |main_#t~mem7.base|)) (= 1 (select |#valid| 0)) (= 0 (select (select |#memory_$Pointer$.base| |main_#t~mem7.base|) 0)))), 94638#(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 (= 8 (select |#length| (select (select |#memory_$Pointer$.base| 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)) 0)) (= 1 (select |#valid| 0)))), 94641#(and (or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (not (= main_~x~0.offset 0)) (= 8 (select |#length| main_~x~0.base)) (<= 0 main_~x~0.offset))) (= (select |#valid| main_~x~0.base) 1)), 94640#(or (and (not (= main_~x~0.offset 0)) (= 8 (select |#length| main_~x~0.base))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 94643#(= 1 (select |#valid| |main_#t~mem11.base|)), 94642#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))] [2018-04-11 14:55:28,702 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:28,702 INFO L442 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-04-11 14:55:28,702 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-04-11 14:55:28,702 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1141, Unknown=0, NotChecked=0, Total=1260 [2018-04-11 14:55:28,702 INFO L87 Difference]: Start difference. First operand 834 states and 938 transitions. Second operand 36 states. [2018-04-11 14:55:30,968 WARN L151 SmtUtils]: Spent 101ms on a formula simplification. DAG size of input: 110 DAG size of output 61 [2018-04-11 14:55:32,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:55:32,418 INFO L93 Difference]: Finished difference Result 964 states and 1068 transitions. [2018-04-11 14:55:32,418 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2018-04-11 14:55:32,418 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 73 [2018-04-11 14:55:32,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:55:32,419 INFO L225 Difference]: With dead ends: 964 [2018-04-11 14:55:32,419 INFO L226 Difference]: Without dead ends: 964 [2018-04-11 14:55:32,419 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2050 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1178, Invalid=6654, Unknown=0, NotChecked=0, Total=7832 [2018-04-11 14:55:32,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2018-04-11 14:55:32,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 842. [2018-04-11 14:55:32,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 842 states. [2018-04-11 14:55:32,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 947 transitions. [2018-04-11 14:55:32,423 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 947 transitions. Word has length 73 [2018-04-11 14:55:32,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:55:32,424 INFO L459 AbstractCegarLoop]: Abstraction has 842 states and 947 transitions. [2018-04-11 14:55:32,424 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-04-11 14:55:32,424 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 947 transitions. [2018-04-11 14:55:32,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-04-11 14:55:32,424 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:55:32,424 INFO L355 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2018-04-11 14:55:32,424 INFO L408 AbstractCegarLoop]: === Iteration 92 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:55:32,424 INFO L82 PathProgramCache]: Analyzing trace with hash -1981614135, now seen corresponding path program 3 times [2018-04-11 14:55:32,425 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:55:32,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:55:32,433 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:55:33,149 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:33,150 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:55:33,150 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2018-04-11 14:55:33,150 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:55:33,150 INFO 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 14:55:33,150 INFO L182 omatonBuilderFactory]: Interpolants [96577#(and (= |main_#t~mem3.offset| 0) (= |main_#t~mem3.offset| main_~head~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 8 (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))), 96576#(and (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) main_~head~0.offset) (= 8 (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))), 96579#(or (and (or (and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 8 (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)))), 96578#(or (and (or (and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.offset 0)) (and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (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)) (= 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))), 96581#(or (and (= |main_#t~mem4.offset| 0) (or (and (= |main_#t~mem4.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)) 0)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) 0)))) (and (= |main_#t~mem4.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)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) 0))))) (and (= |main_#t~mem4.offset| 0) (= |main_#t~mem4.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 96580#(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 (or (and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) 0)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) 0)))) (and (= 0 (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)))), 96583#(or (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))) (= 8 (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))))) (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))))), 96582#(or (not |main_#t~short6|) (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))) (= 8 (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))))) (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))))), 96585#(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 (= 8 (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)))), 96584#(or (and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem7.base|) |main_#t~mem7.offset|)) (= 0 (select (select |#memory_$Pointer$.base| |main_#t~mem7.base|) |main_#t~mem7.offset|))) (and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem7.base|) |main_#t~mem7.offset|)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem7.base|) |main_#t~mem7.offset|))))), 96587#(or (and (= 8 (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))) (not |main_#t~short6|)), 96586#(or (and (= 8 (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 (= |main_#t~mem4.offset| 0) (= |main_#t~mem4.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 96589#(and (= |main_#t~mem11.offset| 0) (= 8 (select |#length| |main_#t~mem11.base|))), 96588#(and (= 8 (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))), 96557#false, 96556#true, 96559#(= 0 main_~head~0.offset), 96558#(= 0 |main_#t~malloc0.offset|), 96561#(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)), 96560#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base))), 96563#(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) (= 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)), 96562#(and (= 0 main_~head~0.offset) (= main_~x~0.offset main_~head~0.offset) (= |main_#t~malloc2.offset| 0) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 96565#(and (= 0 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 0) (= (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))), 96564#(and (= 0 main_~head~0.offset) (= |main_#t~mem3.offset| 0) (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)) (= (select |#valid| main_~head~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 96567#(and (= 0 main_~head~0.offset) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 |main_#t~malloc2.offset|) (= 8 (select |#length| |main_#t~malloc2.base|)) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~head~0.base |main_#t~malloc2.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base |main_#t~malloc2.base|))), 96566#(and (= 0 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 0) (= (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)), 96569#(and (= 0 main_~head~0.offset) (= 8 (select |#length| |main_#t~mem3.base|)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~head~0.base |main_#t~mem3.base|)) (= (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~mem3.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~mem3.base|)), 96568#(and (= 0 main_~head~0.offset) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (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 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))) (= 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)), 96571#(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)) 0)) (= 8 (select |#length| 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)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~malloc2.base|)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.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))), 96570#(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)) 0)) (= 8 (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))) (= (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| (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))), 96573#(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)) 0)) (not (= main_~head~0.base |main_#t~mem3.base|)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (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~mem3.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 96572#(and (= 0 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))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 8 (select |#length| main_~x~0.base)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~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)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 96575#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (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))) (= |main_#t~malloc2.offset| 0) (= |main_#t~malloc2.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))), 96574#(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)) 0)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (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)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))] [2018-04-11 14:55:33,150 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:33,151 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-04-11 14:55:33,151 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-04-11 14:55:33,151 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=991, Unknown=0, NotChecked=0, Total=1122 [2018-04-11 14:55:33,151 INFO L87 Difference]: Start difference. First operand 842 states and 947 transitions. Second operand 34 states. [2018-04-11 14:55:37,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:55:37,437 INFO L93 Difference]: Finished difference Result 974 states and 1078 transitions. [2018-04-11 14:55:37,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2018-04-11 14:55:37,438 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 73 [2018-04-11 14:55:37,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:55:37,438 INFO L225 Difference]: With dead ends: 974 [2018-04-11 14:55:37,438 INFO L226 Difference]: Without dead ends: 974 [2018-04-11 14:55:37,439 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2408 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1289, Invalid=7453, Unknown=0, NotChecked=0, Total=8742 [2018-04-11 14:55:37,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2018-04-11 14:55:37,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 842. [2018-04-11 14:55:37,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 842 states. [2018-04-11 14:55:37,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 946 transitions. [2018-04-11 14:55:37,442 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 946 transitions. Word has length 73 [2018-04-11 14:55:37,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:55:37,443 INFO L459 AbstractCegarLoop]: Abstraction has 842 states and 946 transitions. [2018-04-11 14:55:37,443 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-04-11 14:55:37,443 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 946 transitions. [2018-04-11 14:55:37,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-04-11 14:55:37,443 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:55:37,443 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, 1, 1, 1, 1] [2018-04-11 14:55:37,443 INFO L408 AbstractCegarLoop]: === Iteration 93 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:55:37,443 INFO L82 PathProgramCache]: Analyzing trace with hash 773732834, now seen corresponding path program 2 times [2018-04-11 14:55:37,444 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:55:37,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:55:37,449 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:55:37,625 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:37,625 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:55:37,625 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-04-11 14:55:37,625 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:55:37,625 INFO 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 14:55:37,625 INFO L182 omatonBuilderFactory]: Interpolants [98529#(and (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 98528#(= main_~x~0.base main_~head~0.base), 98531#(and (= 0 main_~prev~0.offset) (= 0 main_~prev~0.base) (= 1 (select |#valid| main_~x~0.base))), 98530#(= 1 (select |#valid| main_~head~0.base)), 98533#(or (and (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~prev~0.offset)) (= main_~x~0.base main_~prev~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~prev~0.offset)) (not (= main_~x~0.offset main_~prev~0.offset))) (and (not (= main_~x~0.base main_~prev~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~prev~0.base) main_~prev~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~prev~0.base) main_~prev~0.offset))) (and (= main_~x~0.base main_~prev~0.base) (= 1 (select |#valid| main_~prev~0.base)) (= main_~x~0.offset main_~prev~0.offset))), 98532#(and (= 1 (select |#valid| 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))), 98535#(or (and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~prev~0.base) main_~prev~0.offset)) (select (select |#memory_$Pointer$.offset| main_~prev~0.base) main_~prev~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~prev~0.base) main_~prev~0.offset)) (select (select |#memory_$Pointer$.offset| main_~prev~0.base) main_~prev~0.offset)))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~prev~0.base) main_~prev~0.offset)) (select (select |#memory_$Pointer$.offset| main_~prev~0.base) main_~prev~0.offset))))), 98534#(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| (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))))), 98537#(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)))), 98536#(or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem18.base|) |main_#t~mem18.offset|))) (and (= 0 (select (select |#memory_$Pointer$.base| |main_#t~mem18.base|) |main_#t~mem18.offset|)) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem18.base|) |main_#t~mem18.offset|)))), 98539#(or (= 1 (select |#valid| main_~x~0.base)) (and (= 0 main_~x~0.base) (= 0 main_~x~0.offset))), 98538#(or (= 1 (select |#valid| |main_#t~mem18.base|)) (and (= 0 |main_#t~mem18.base|) (= 0 |main_#t~mem18.offset|))), 98540#(= 1 (select |#valid| main_~x~0.base)), 98527#false, 98526#true] [2018-04-11 14:55:37,626 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:37,626 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-11 14:55:37,626 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-11 14:55:37,626 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2018-04-11 14:55:37,626 INFO L87 Difference]: Start difference. First operand 842 states and 946 transitions. Second operand 15 states. [2018-04-11 14:55:38,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:55:38,434 INFO L93 Difference]: Finished difference Result 927 states and 1030 transitions. [2018-04-11 14:55:38,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-04-11 14:55:38,434 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 74 [2018-04-11 14:55:38,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:55:38,435 INFO L225 Difference]: With dead ends: 927 [2018-04-11 14:55:38,435 INFO L226 Difference]: Without dead ends: 927 [2018-04-11 14:55:38,435 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=222, Invalid=900, Unknown=0, NotChecked=0, Total=1122 [2018-04-11 14:55:38,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2018-04-11 14:55:38,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 849. [2018-04-11 14:55:38,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 849 states. [2018-04-11 14:55:38,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 958 transitions. [2018-04-11 14:55:38,440 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 958 transitions. Word has length 74 [2018-04-11 14:55:38,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:55:38,440 INFO L459 AbstractCegarLoop]: Abstraction has 849 states and 958 transitions. [2018-04-11 14:55:38,440 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-11 14:55:38,440 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 958 transitions. [2018-04-11 14:55:38,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-04-11 14:55:38,441 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:55:38,441 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, 1, 1, 1, 1] [2018-04-11 14:55:38,441 INFO L408 AbstractCegarLoop]: === Iteration 94 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:55:38,441 INFO L82 PathProgramCache]: Analyzing trace with hash 773732835, now seen corresponding path program 2 times [2018-04-11 14:55:38,442 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:55:38,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:55:38,446 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:55:38,762 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:38,762 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:55:38,762 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-04-11 14:55:38,762 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:55:38,762 INFO 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 14:55:38,763 INFO L182 omatonBuilderFactory]: Interpolants [100357#false, 100356#true, 100359#(= 0 main_~head~0.offset), 100358#(= 0 |main_#t~malloc0.offset|), 100361#(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)) (= 0 main_~x~0.offset)), 100360#(and (= 0 main_~prev~0.offset) (= 0 main_~prev~0.base) (= 0 main_~x~0.offset)), 100363#(or (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)))) (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 |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (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)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 100362#(or (and (= 0 main_~prev~0.offset) (or (and (= main_~x~0.base main_~prev~0.base) (= main_~x~0.offset main_~prev~0.offset)) (and (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~prev~0.offset)) (= main_~x~0.base main_~prev~0.base))) (or (= main_~x~0.offset main_~prev~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~prev~0.offset)))) (and (not (= main_~x~0.base main_~prev~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~prev~0.base) main_~prev~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~prev~0.base) main_~prev~0.offset)))), 100365#(or (and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem18.base|) |main_#t~mem18.offset|)) (<= (select |#length| |main_#t~mem18.base|) (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem18.base|) |main_#t~mem18.offset|))) (= 0 |main_#t~mem18.offset|)) (and (= 0 (select (select |#memory_$Pointer$.base| |main_#t~mem18.base|) |main_#t~mem18.offset|)) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem18.base|) |main_#t~mem18.offset|)))), 100364#(or (and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~prev~0.base) main_~prev~0.offset)) (select (select |#memory_$Pointer$.offset| main_~prev~0.base) main_~prev~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~prev~0.base) main_~prev~0.offset)) (select (select |#memory_$Pointer$.offset| main_~prev~0.base) main_~prev~0.offset)))) (and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~prev~0.base) main_~prev~0.offset)) (select (select |#memory_$Pointer$.offset| main_~prev~0.base) main_~prev~0.offset))) (<= (select |#length| (select (select |#memory_$Pointer$.base| main_~prev~0.base) main_~prev~0.offset)) (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~prev~0.base) main_~prev~0.offset)) (select (select |#memory_$Pointer$.offset| main_~prev~0.base) main_~prev~0.offset)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~prev~0.base) main_~prev~0.offset)))), 100367#(or (and (<= (+ main_~x~0.offset 8) (select |#length| (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))) (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)))), 100366#(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| main_~x~0.base) main_~x~0.offset)) (<= (select |#length| main_~x~0.base) (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 main_~x~0.offset))), 100369#(or (and (<= 8 (select |#length| main_~x~0.base)) (= 0 main_~x~0.offset)) (and (= 0 main_~x~0.base) (= 0 main_~x~0.offset))), 100368#(or (and (<= 8 (select |#length| |main_#t~mem18.base|)) (= 0 |main_#t~mem18.offset|)) (and (= 0 |main_#t~mem18.base|) (= 0 |main_#t~mem18.offset|))), 100370#(and (= main_~x~0.offset 0) (<= 8 (select |#length| main_~x~0.base)))] [2018-04-11 14:55:38,763 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:38,763 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-11 14:55:38,763 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-11 14:55:38,763 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2018-04-11 14:55:38,763 INFO L87 Difference]: Start difference. First operand 849 states and 958 transitions. Second operand 15 states. [2018-04-11 14:55:39,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:55:39,675 INFO L93 Difference]: Finished difference Result 965 states and 1079 transitions. [2018-04-11 14:55:39,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-04-11 14:55:39,675 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 74 [2018-04-11 14:55:39,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:55:39,676 INFO L225 Difference]: With dead ends: 965 [2018-04-11 14:55:39,676 INFO L226 Difference]: Without dead ends: 965 [2018-04-11 14:55:39,676 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=178, Invalid=1012, Unknown=0, NotChecked=0, Total=1190 [2018-04-11 14:55:39,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2018-04-11 14:55:39,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 875. [2018-04-11 14:55:39,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 875 states. [2018-04-11 14:55:39,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 986 transitions. [2018-04-11 14:55:39,680 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 986 transitions. Word has length 74 [2018-04-11 14:55:39,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:55:39,681 INFO L459 AbstractCegarLoop]: Abstraction has 875 states and 986 transitions. [2018-04-11 14:55:39,681 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-11 14:55:39,681 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 986 transitions. [2018-04-11 14:55:39,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-04-11 14:55:39,681 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:55:39,681 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] [2018-04-11 14:55:39,681 INFO L408 AbstractCegarLoop]: === Iteration 95 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:55:39,681 INFO L82 PathProgramCache]: Analyzing trace with hash -17647566, now seen corresponding path program 4 times [2018-04-11 14:55:39,682 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:55:39,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:55:39,689 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:55:40,163 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:40,163 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:55:40,163 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2018-04-11 14:55:40,163 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:55:40,163 INFO 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 14:55:40,163 INFO L182 omatonBuilderFactory]: Interpolants [102273#(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| (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_$Pointer$.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)))))), 102272#(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| (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)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))))), 102275#(or (= 1 (select |#valid| (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))) (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))))) (not |main_#t~short6|)), 102274#(or (= 1 (select |#valid| (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))) (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))))) (and (= |main_#t~mem4.offset| 0) (= |main_#t~mem4.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 102277#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem7.base|) |main_#t~mem7.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem7.base|) |main_#t~mem7.offset|)))), 102276#(= 1 (select |#valid| (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))) (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))))), 102279#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem7.base|) |main_#t~mem7.offset|))), 102278#(= 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)))), 102281#(= 1 (select |#valid| |main_#t~mem11.base|)), 102280#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 102251#true, 102253#(= 0 |main_#t~malloc0.offset|), 102252#false, 102255#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base))), 102254#(= 0 main_~head~0.offset), 102257#(and (= 0 main_~head~0.offset) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 102256#(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)), 102259#(and (= 0 main_~head~0.offset) (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|) (= |main_#t~mem3.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1)), 102258#(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)), 102261#(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))), 102260#(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))), 102263#(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)), 102262#(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 main_~head~0.base)) (not (= main_~head~0.base |main_#t~malloc2.base|)) (not (= main_~x~0.base |main_#t~malloc2.base|))), 102265#(and (= 0 main_~head~0.offset) (= main_~x~0.offset (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 |#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)))), 102264#(and (= 0 main_~head~0.offset) (= |main_#t~mem3.offset| (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)) |main_#t~mem3.base|) (not (= main_~head~0.base |main_#t~mem3.base|)) (= (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~mem3.base|))), 102267#(and (= main_~x~0.offset (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_#t~malloc2.offset| main_~head~0.offset) (not (= main_~x~0.base main_~head~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~malloc2.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))) (not (= main_~x~0.base |main_#t~malloc2.base|))), 102266#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset (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 |#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)))), 102269#(and (= |main_#t~mem3.offset| main_~head~0.offset) (not (= (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~mem3.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|)) (= |main_#t~mem3.base| (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))) (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))))), 102268#(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_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 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 (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.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)))), 102271#(or (and (= main_~x~0.base (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))) (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))) (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)))), 102270#(or (and (= main_~x~0.base (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))) (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| (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))) (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)))] [2018-04-11 14:55:40,163 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:40,164 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-04-11 14:55:40,164 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-04-11 14:55:40,164 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=844, Unknown=0, NotChecked=0, Total=930 [2018-04-11 14:55:40,164 INFO L87 Difference]: Start difference. First operand 875 states and 986 transitions. Second operand 31 states. [2018-04-11 14:55:42,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:55:42,642 INFO L93 Difference]: Finished difference Result 961 states and 1064 transitions. [2018-04-11 14:55:42,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2018-04-11 14:55:42,642 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 74 [2018-04-11 14:55:42,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:55:42,643 INFO L225 Difference]: With dead ends: 961 [2018-04-11 14:55:42,643 INFO L226 Difference]: Without dead ends: 961 [2018-04-11 14:55:42,643 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1581 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=771, Invalid=5709, Unknown=0, NotChecked=0, Total=6480 [2018-04-11 14:55:42,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2018-04-11 14:55:42,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 883. [2018-04-11 14:55:42,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 883 states. [2018-04-11 14:55:42,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 995 transitions. [2018-04-11 14:55:42,647 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 995 transitions. Word has length 74 [2018-04-11 14:55:42,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:55:42,647 INFO L459 AbstractCegarLoop]: Abstraction has 883 states and 995 transitions. [2018-04-11 14:55:42,647 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-04-11 14:55:42,647 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 995 transitions. [2018-04-11 14:55:42,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-04-11 14:55:42,648 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:55:42,648 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] [2018-04-11 14:55:42,648 INFO L408 AbstractCegarLoop]: === Iteration 96 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:55:42,648 INFO L82 PathProgramCache]: Analyzing trace with hash -17647565, now seen corresponding path program 4 times [2018-04-11 14:55:42,648 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:55:42,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:55:42,656 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:55:43,327 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:43,327 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:55:43,327 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2018-04-11 14:55:43,327 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:55:43,327 INFO 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 14:55:43,327 INFO L182 omatonBuilderFactory]: Interpolants [104256#(and (= |main_#t~mem11.offset| 0) (= 8 (select |#length| |main_#t~mem11.base|))), 104227#false, 104226#true, 104229#(= 0 main_~head~0.offset), 104228#(= 0 |main_#t~malloc0.offset|), 104231#(and (= 0 main_~head~0.offset) (= main_~x~0.offset main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base)) (= main_~x~0.base main_~head~0.base)), 104230#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base))), 104233#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~x~0.base)) (= 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) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) main_~x~0.base))), 104232#(and (= 0 main_~head~0.offset) (= main_~x~0.offset main_~head~0.offset) (= |main_#t~malloc2.offset| 0) (= main_~x~0.base main_~head~0.base) (not (= |main_#t~malloc2.base| main_~x~0.base))), 104235#(and (= 0 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_~head~0.base)) (= main_~x~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))), 104234#(and (= 0 main_~head~0.offset) (= |main_#t~mem3.offset| 0) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|) (= 1 (select |#valid| main_~head~0.base)) (not (= |main_#t~mem3.base| main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 104237#(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~malloc2.base| main_~head~0.base)) (= main_~x~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)) (not (= main_~x~0.base |main_#t~malloc2.base|))), 104236#(and (= 0 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)) (= 1 (select |#valid| main_~head~0.base)) (= main_~x~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))), 104239#(and (= 0 main_~head~0.offset) (= |main_#t~mem3.offset| (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= |main_#t~mem3.base| main_~head~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.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~mem3.base|)), 104238#(and (= 0 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)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~x~0.offset 0) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 104241#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 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)) (= main_~x~0.base (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))), 104240#(and (= 0 main_~head~0.offset) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 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)) (= main_~x~0.base (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))), 104243#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (or (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) 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)))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (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_~x~0.base) main_~x~0.offset))) (not (= (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))) (= main_~x~0.base (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))), 104242#(and (or (= |main_#t~malloc2.offset| main_~head~0.offset) (not (= main_~head~0.base |main_#t~malloc2.base|))) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 0 |main_#t~malloc2.offset|) (= 8 (select |#length| |main_#t~malloc2.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)) (not (= |main_#t~malloc2.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)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base |main_#t~malloc2.base|))), 104245#(or (and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) 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 (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) 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 (= 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))) (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base))), 104244#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) 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 (= |main_#t~mem3.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))) (or (= |main_#t~mem3.offset| main_~head~0.offset) (not (= main_~head~0.base |main_#t~mem3.base|))) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) |main_#t~mem3.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 104247#(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 (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| 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)) 0)))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| 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)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))), 104246#(or (and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 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)))), 104249#(or (and (= 0 (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))) (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)))) (= 8 (select |#length| (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))) (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)))))) (not |main_#t~short6|)), 104248#(or (and (= |main_#t~mem4.offset| 0) (= |main_#t~mem4.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= |main_#t~mem4.offset| 0) (= |main_#t~mem4.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| 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)) 0)))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| 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)) 0))))), 104251#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem7.base|) |main_#t~mem7.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem7.base|) |main_#t~mem7.offset|))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem7.base|) |main_#t~mem7.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem7.base|) |main_#t~mem7.offset|))))), 104250#(and (= 0 (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))) (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)))) (= 8 (select |#length| (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))) (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)))))), 104253#(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))) (= 8 (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)))) (= (select |#valid| main_~x~0.base) 1)), 104252#(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))) (= 8 (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))))), 104255#(and (= 8 (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))), 104254#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem7.base|) |main_#t~mem7.offset|)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem7.base|) |main_#t~mem7.offset|))))] [2018-04-11 14:55:43,327 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:43,328 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-04-11 14:55:43,328 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-04-11 14:55:43,328 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=844, Unknown=0, NotChecked=0, Total=930 [2018-04-11 14:55:43,328 INFO L87 Difference]: Start difference. First operand 883 states and 995 transitions. Second operand 31 states. [2018-04-11 14:55:46,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:55:46,215 INFO L93 Difference]: Finished difference Result 951 states and 1054 transitions. [2018-04-11 14:55:46,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2018-04-11 14:55:46,215 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 74 [2018-04-11 14:55:46,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:55:46,216 INFO L225 Difference]: With dead ends: 951 [2018-04-11 14:55:46,216 INFO L226 Difference]: Without dead ends: 951 [2018-04-11 14:55:46,216 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1141 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=635, Invalid=4335, Unknown=0, NotChecked=0, Total=4970 [2018-04-11 14:55:46,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2018-04-11 14:55:46,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 883. [2018-04-11 14:55:46,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 883 states. [2018-04-11 14:55:46,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 994 transitions. [2018-04-11 14:55:46,220 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 994 transitions. Word has length 74 [2018-04-11 14:55:46,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:55:46,221 INFO L459 AbstractCegarLoop]: Abstraction has 883 states and 994 transitions. [2018-04-11 14:55:46,221 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-04-11 14:55:46,221 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 994 transitions. [2018-04-11 14:55:46,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-04-11 14:55:46,221 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:55:46,221 INFO L355 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 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 14:55:46,221 INFO L408 AbstractCegarLoop]: === Iteration 97 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:55:46,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1087480803, now seen corresponding path program 2 times [2018-04-11 14:55:46,222 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:55:46,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:55:46,228 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:55:46,708 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:46,708 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:55:46,708 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-04-11 14:55:46,708 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:55:46,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:46,709 INFO L182 omatonBuilderFactory]: Interpolants [106177#(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)) (= (select |#valid| main_~head~0.base) 1)), 106176#(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) (= (select |#valid| main_~head~0.base) 1) (= main_~x~0.base main_~head~0.base)), 106179#(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_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1)), 106178#(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))), 106181#(and (= main_~x~0.offset main_~head~0.offset) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) 1) (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)), 106180#(and (= (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_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1)), 106183#(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)) (= (select |#valid| main_~x~0.base) 1)), 106182#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem7.base|) (= (select |#valid| |main_#t~mem7.base|) 1) (= (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))), 106185#(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)) (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))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~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)))), 106184#(and (= 0 |main_#t~malloc9.offset|) (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)) (= 8 (select |#length| |main_#t~malloc9.base|))), 106187#(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))) (= 8 (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_~head~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_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base))), 106186#(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))) (= 8 (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~mem10.base|)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem10.base|))), 106189#(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))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 8 (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))))), 106188#(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))) (= 8 (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_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 106191#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~next~0.base) main_~next~0.offset)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset))) (not (= main_~x~0.base main_~next~0.base))), 106190#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem12.base|) |main_#t~mem12.offset|)) (not (= main_~x~0.base |main_#t~mem12.base|)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem12.base|) |main_#t~mem12.offset|)))), 106193#(and (= 8 (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))), 106192#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~next~0.base) main_~next~0.offset)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset)))), 106195#(and (= main_~next~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 8 (select |#length| main_~next~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 106194#(and (= |main_#t~mem12.offset| (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)) (= 8 (select |#length| |main_#t~mem12.base|))), 106197#(and (= 8 (select |#length| main_~x~0.base)) (= 0 main_~x~0.offset)), 106196#(and (= 0 main_~next~0.offset) (= 8 (select |#length| main_~next~0.base))), 106198#(and (<= 0 main_~prev~0.offset) (<= main_~prev~0.offset 0) (= 8 (select |#length| main_~prev~0.base))), 106171#true, 106173#(= 1 (select |#valid| main_~head~0.base)), 106172#false, 106175#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 106174#(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 14:55:46,709 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:46,709 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-04-11 14:55:46,709 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-04-11 14:55:46,709 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2018-04-11 14:55:46,709 INFO L87 Difference]: Start difference. First operand 883 states and 994 transitions. Second operand 28 states. [2018-04-11 14:55:48,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:55:48,247 INFO L93 Difference]: Finished difference Result 967 states and 1087 transitions. [2018-04-11 14:55:48,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-04-11 14:55:48,248 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 75 [2018-04-11 14:55:48,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:55:48,248 INFO L225 Difference]: With dead ends: 967 [2018-04-11 14:55:48,248 INFO L226 Difference]: Without dead ends: 967 [2018-04-11 14:55:48,249 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=227, Invalid=2029, Unknown=0, NotChecked=0, Total=2256 [2018-04-11 14:55:48,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2018-04-11 14:55:48,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 877. [2018-04-11 14:55:48,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 877 states. [2018-04-11 14:55:48,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 988 transitions. [2018-04-11 14:55:48,253 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 988 transitions. Word has length 75 [2018-04-11 14:55:48,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:55:48,253 INFO L459 AbstractCegarLoop]: Abstraction has 877 states and 988 transitions. [2018-04-11 14:55:48,253 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-04-11 14:55:48,253 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 988 transitions. [2018-04-11 14:55:48,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-04-11 14:55:48,253 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:55:48,253 INFO L355 BasicCegarLoop]: trace histogram [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] [2018-04-11 14:55:48,254 INFO L408 AbstractCegarLoop]: === Iteration 98 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:55:48,254 INFO L82 PathProgramCache]: Analyzing trace with hash -1327152466, now seen corresponding path program 1 times [2018-04-11 14:55:48,254 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:55:48,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:55:48,261 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:55:48,651 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:48,652 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:55:48,652 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-04-11 14:55:48,652 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:55:48,652 INFO 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 14:55:48,652 INFO L182 omatonBuilderFactory]: Interpolants [108097#(and (= 8 (select |#length| main_~head~0.base)) (= (select |#length| main_~head~0.base) (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))), 108096#(and (= 8 (select |#length| main_~head~0.base)) (= (select |#length| main_~head~0.base) (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))), 108099#(and (= |main_#t~mem11.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| main_~head~0.base)) (= (select |#length| main_~head~0.base) (select |#length| |main_#t~mem11.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 108098#(and (= (select |#length| main_~x~0.base) (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 8 (select |#length| main_~x~0.base)) (= 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)), 108101#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 108100#(and (<= 8 (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))), 108103#(and (<= 8 (select |#length| main_~next~0.base)) (= main_~next~0.offset (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))), 108102#(and (= |main_#t~mem12.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (<= 8 (select |#length| |main_#t~mem12.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 108105#(and (<= 8 (select |#length| main_~x~0.base)) (= 0 main_~x~0.offset)), 108104#(and (<= 8 (select |#length| main_~next~0.base)) (= 0 main_~next~0.offset)), 108107#(and (<= (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 8) (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))), 108106#(and (<= 0 main_~prev~0.offset) (<= (+ main_~prev~0.offset 8) (select |#length| main_~prev~0.base))), 108109#(and (<= 0 |main_#t~mem14.offset|) (<= (+ |main_#t~mem14.offset| 8) (select |#length| |main_#t~mem14.base|))), 108108#(and (<= (+ (select (select |#memory_$Pointer$.offset| main_~prev~0.base) main_~prev~0.offset) 8) (select |#length| (select (select |#memory_$Pointer$.base| main_~prev~0.base) main_~prev~0.offset))) (<= 0 (select (select |#memory_$Pointer$.offset| main_~prev~0.base) main_~prev~0.offset))), 108083#true, 108085#(= (select |#length| |main_#t~malloc0.base|) 8), 108084#false, 108087#(and (= 1 (select |#valid| main_~head~0.base)) (= (select |#length| main_~head~0.base) 8)), 108086#(= (select |#length| main_~head~0.base) 8), 108089#(and (= (select |#length| main_~x~0.base) (select |#length| |main_#t~malloc2.base|)) (= 8 (select |#length| main_~x~0.base)) (= 0 |main_#t~malloc2.offset|) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 108088#(and (= 8 (select |#length| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 108091#(and (= (select |#length| main_~head~0.base) (select |#length| |main_#t~mem3.base|)) (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select |#length| main_~head~0.base) 8) (= |main_#t~mem3.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 108090#(and (= (select |#length| main_~x~0.base) (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))) (= 8 (select |#length| main_~x~0.base)) (= 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)), 108093#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| main_~head~0.base)) (= (select |#length| main_~head~0.base) (select |#length| main_~x~0.base)) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~head~0.base |main_#t~malloc2.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 108092#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#length| main_~head~0.base) (select |#length| main_~x~0.base)) (= (select |#length| main_~head~0.base) 8) (= (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))), 108095#(and (= 8 (select |#length| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select |#length| main_~head~0.base) (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))), 108094#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (select |#length| main_~head~0.base)) (= (select |#length| main_~head~0.base) (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)))] [2018-04-11 14:55:48,652 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:48,652 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-04-11 14:55:48,653 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-04-11 14:55:48,653 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=604, Unknown=0, NotChecked=0, Total=702 [2018-04-11 14:55:48,653 INFO L87 Difference]: Start difference. First operand 877 states and 988 transitions. Second operand 27 states. [2018-04-11 14:55:50,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:55:50,064 INFO L93 Difference]: Finished difference Result 1090 states and 1224 transitions. [2018-04-11 14:55:50,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-04-11 14:55:50,064 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 75 [2018-04-11 14:55:50,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:55:50,065 INFO L225 Difference]: With dead ends: 1090 [2018-04-11 14:55:50,065 INFO L226 Difference]: Without dead ends: 1090 [2018-04-11 14:55:50,065 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 702 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=463, Invalid=2617, Unknown=0, NotChecked=0, Total=3080 [2018-04-11 14:55:50,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1090 states. [2018-04-11 14:55:50,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1090 to 891. [2018-04-11 14:55:50,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 891 states. [2018-04-11 14:55:50,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1003 transitions. [2018-04-11 14:55:50,070 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1003 transitions. Word has length 75 [2018-04-11 14:55:50,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:55:50,070 INFO L459 AbstractCegarLoop]: Abstraction has 891 states and 1003 transitions. [2018-04-11 14:55:50,070 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-04-11 14:55:50,070 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1003 transitions. [2018-04-11 14:55:50,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-04-11 14:55:50,071 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:55:50,071 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 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] [2018-04-11 14:55:50,071 INFO L408 AbstractCegarLoop]: === Iteration 99 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:55:50,071 INFO L82 PathProgramCache]: Analyzing trace with hash -613901716, now seen corresponding path program 1 times [2018-04-11 14:55:50,072 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:55:50,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:55:50,077 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:55:50,206 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-04-11 14:55:50,207 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:55:50,207 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2018-04-11 14:55:50,207 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:55:50,207 INFO 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 14:55:50,207 INFO L182 omatonBuilderFactory]: Interpolants [110149#true, 110151#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 110150#false, 110153#(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))), 110152#(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|)), 110155#(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 8) (select |#length| main_~x~0.base)) (<= 0 main_~x~0.offset)), 110154#(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)) (<= 0 main_~x~0.offset)), 110157#(and (<= (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 8) (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))), 110156#(and (<= (+ (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 8) (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))), 110159#(and (<= (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 8) (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= main_~next~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~next~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))), 110158#(and (<= (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 8) (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= |main_#t~mem12.offset| (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)) (= |main_#t~mem12.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 110161#(and (<= (+ main_~x~0.offset 8) (select |#length| main_~x~0.base)) (<= 0 main_~x~0.offset)), 110160#(and (<= 0 main_~next~0.offset) (<= (+ main_~next~0.offset 8) (select |#length| main_~next~0.base))), 110162#(and (<= 0 main_~prev~0.offset) (<= (+ main_~prev~0.offset 8) (select |#length| main_~prev~0.base)))] [2018-04-11 14:55:50,207 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-04-11 14:55:50,207 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-04-11 14:55:50,208 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-04-11 14:55:50,208 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2018-04-11 14:55:50,208 INFO L87 Difference]: Start difference. First operand 891 states and 1003 transitions. Second operand 14 states. [2018-04-11 14:55:50,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:55:50,647 INFO L93 Difference]: Finished difference Result 1027 states and 1149 transitions. [2018-04-11 14:55:50,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-11 14:55:50,647 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 75 [2018-04-11 14:55:50,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:55:50,648 INFO L225 Difference]: With dead ends: 1027 [2018-04-11 14:55:50,648 INFO L226 Difference]: Without dead ends: 1027 [2018-04-11 14:55:50,648 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2018-04-11 14:55:50,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2018-04-11 14:55:50,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 827. [2018-04-11 14:55:50,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 827 states. [2018-04-11 14:55:50,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 938 transitions. [2018-04-11 14:55:50,652 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 938 transitions. Word has length 75 [2018-04-11 14:55:50,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:55:50,652 INFO L459 AbstractCegarLoop]: Abstraction has 827 states and 938 transitions. [2018-04-11 14:55:50,652 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-04-11 14:55:50,652 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 938 transitions. [2018-04-11 14:55:50,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-04-11 14:55:50,653 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:55:50,653 INFO L355 BasicCegarLoop]: trace histogram [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 14:55:50,653 INFO L408 AbstractCegarLoop]: === Iteration 100 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:55:50,653 INFO L82 PathProgramCache]: Analyzing trace with hash -73771974, now seen corresponding path program 1 times [2018-04-11 14:55:50,653 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:55:50,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:55:50,659 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:55:50,845 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:50,845 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:55:50,845 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-04-11 14:55:50,846 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:55:50,846 INFO 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 14:55:50,846 INFO L182 omatonBuilderFactory]: Interpolants [112035#true, 112037#(= 1 (select |#valid| main_~head~0.base)), 112036#false, 112039#(and (= 0 |main_#t~malloc2.offset|) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 112038#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 112041#(and (not (= main_~head~0.base |main_#t~mem3.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 112040#(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)), 112043#(= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)), 112042#(and (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 112045#(= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)), 112044#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~x~0.base main_~head~0.base)), 112047#(and (= main_~next~0.offset (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))), 112046#(and (= |main_#t~mem12.offset| (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))), 112049#(= 0 main_~x~0.offset), 112048#(= 0 main_~next~0.offset), 112051#(and (<= main_~head~0.offset 0) (<= 0 main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 112050#(and (<= 0 main_~prev~0.offset) (<= main_~prev~0.offset 0)), 112053#(and (<= (+ main_~head~0.offset 8) (select |#length| main_~x~0.base)) (<= 0 main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 112052#(and (<= 0 main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (<= (+ main_~x~0.offset main_~head~0.offset 8) (select |#length| main_~x~0.base))), 112055#(and (<= (+ main_~x~0.offset 8) (select |#length| main_~x~0.base)) (<= 0 main_~x~0.offset)), 112054#(and (<= 0 main_~head~0.offset) (<= (+ main_~head~0.offset 8) (select |#length| main_~head~0.base)))] [2018-04-11 14:55:50,846 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:50,846 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-11 14:55:50,846 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-11 14:55:50,846 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2018-04-11 14:55:50,846 INFO L87 Difference]: Start difference. First operand 827 states and 938 transitions. Second operand 21 states. [2018-04-11 14:55:51,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:55:51,696 INFO L93 Difference]: Finished difference Result 990 states and 1110 transitions. [2018-04-11 14:55:51,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-04-11 14:55:51,696 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 76 [2018-04-11 14:55:51,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:55:51,697 INFO L225 Difference]: With dead ends: 990 [2018-04-11 14:55:51,697 INFO L226 Difference]: Without dead ends: 990 [2018-04-11 14:55:51,697 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 461 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=302, Invalid=1954, Unknown=0, NotChecked=0, Total=2256 [2018-04-11 14:55:51,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2018-04-11 14:55:51,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 909. [2018-04-11 14:55:51,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 909 states. [2018-04-11 14:55:51,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1039 transitions. [2018-04-11 14:55:51,701 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1039 transitions. Word has length 76 [2018-04-11 14:55:51,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:55:51,701 INFO L459 AbstractCegarLoop]: Abstraction has 909 states and 1039 transitions. [2018-04-11 14:55:51,701 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-11 14:55:51,701 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1039 transitions. [2018-04-11 14:55:51,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-04-11 14:55:51,701 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:55:51,701 INFO L355 BasicCegarLoop]: trace histogram [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, 1] [2018-04-11 14:55:51,701 INFO L408 AbstractCegarLoop]: === Iteration 101 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:55:51,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1966013246, now seen corresponding path program 1 times [2018-04-11 14:55:51,702 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:55:51,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:55:51,706 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:55:51,952 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:51,953 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:55:51,990 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-04-11 14:55:51,990 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:55:51,990 INFO 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 14:55:51,991 INFO L182 omatonBuilderFactory]: Interpolants [114017#(and (not (= 0 main_~prev~0.base)) (= main_~prev~0.offset 0) (= 1 (select |#valid| main_~prev~0.base))), 114016#(and (= 1 (select |#valid| main_~x~0.base)) (not (= 0 main_~x~0.base)) (= main_~x~0.offset 0)), 114019#(and (not (= 0 (select (select |#memory_$Pointer$.base| main_~prev~0.base) main_~prev~0.offset))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~prev~0.base) main_~prev~0.offset))) (= (select (select |#memory_$Pointer$.offset| main_~prev~0.base) main_~prev~0.offset) 0)), 114018#(and (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0) (not (= 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)))), 114021#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~mem17.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem17.offset| 0)), 114020#(and (= (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 (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 (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 114023#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (or (not (= 0 main_~head~0.offset)) (not (= 0 |main_#t~mem18.base|)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))))), 114022#(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_~head~0.base) main_~head~0.offset))) (= main_~x~0.offset 0) (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 114025#(and (or (not (= 0 main_~head~0.offset)) (not (= main_~head~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)))), 114024#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (or (not (= 0 main_~head~0.offset)) (not (= 0 main_~x~0.base)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))))), 114027#(or (not (= 0 main_~head~0.offset)) (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))))), 114026#(and (or (not (= 0 main_~x~0.offset)) (not (= main_~x~0.base (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)))), 114029#(or (and (= 1 (select |#valid| main_~x~0.base)) (not (= main_~head~0.base main_~x~0.base))) (not (= 0 main_~head~0.offset))), 114028#(or (not (= 0 main_~head~0.offset)) (and (not (= main_~head~0.base |main_#t~mem19.base|)) (= 1 (select |#valid| |main_#t~mem19.base|)))), 114031#(= 1 (select |#valid| main_~x~0.base)), 114030#(and (= 1 (select |#valid| main_~x~0.base)) (not (= main_~head~0.base main_~x~0.base))), 114009#true, 114011#(and (not (= 0 |main_#t~malloc0.base|)) (= |main_#t~malloc0.offset| 0)), 114010#false, 114013#(and (not (= 0 main_~head~0.base)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0)), 114012#(and (not (= 0 main_~head~0.base)) (= main_~head~0.offset 0)), 114015#(and (= 1 (select |#valid| main_~head~0.base)) (not (= 0 main_~head~0.base)) (= main_~head~0.offset 0)), 114014#(and (not (= 0 main_~head~0.base)) (= main_~x~0.base main_~head~0.base) (= main_~head~0.offset 0) (= (select |#valid| main_~x~0.base) 1))] [2018-04-11 14:55:51,991 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:51,991 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-04-11 14:55:51,991 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-04-11 14:55:51,991 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=448, Unknown=0, NotChecked=0, Total=506 [2018-04-11 14:55:51,991 INFO L87 Difference]: Start difference. First operand 909 states and 1039 transitions. Second operand 23 states. [2018-04-11 14:55:53,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:55:53,167 INFO L93 Difference]: Finished difference Result 1098 states and 1228 transitions. [2018-04-11 14:55:53,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-04-11 14:55:53,167 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 77 [2018-04-11 14:55:53,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:55:53,168 INFO L225 Difference]: With dead ends: 1098 [2018-04-11 14:55:53,168 INFO L226 Difference]: Without dead ends: 1098 [2018-04-11 14:55:53,169 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 667 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=384, Invalid=2372, Unknown=0, NotChecked=0, Total=2756 [2018-04-11 14:55:53,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2018-04-11 14:55:53,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 937. [2018-04-11 14:55:53,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 937 states. [2018-04-11 14:55:53,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 937 states to 937 states and 1072 transitions. [2018-04-11 14:55:53,175 INFO L78 Accepts]: Start accepts. Automaton has 937 states and 1072 transitions. Word has length 77 [2018-04-11 14:55:53,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:55:53,175 INFO L459 AbstractCegarLoop]: Abstraction has 937 states and 1072 transitions. [2018-04-11 14:55:53,175 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-04-11 14:55:53,175 INFO L276 IsEmpty]: Start isEmpty. Operand 937 states and 1072 transitions. [2018-04-11 14:55:53,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-04-11 14:55:53,176 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:55:53,176 INFO L355 BasicCegarLoop]: trace histogram [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, 1] [2018-04-11 14:55:53,176 INFO L408 AbstractCegarLoop]: === Iteration 102 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:55:53,176 INFO L82 PathProgramCache]: Analyzing trace with hash 1966013247, now seen corresponding path program 1 times [2018-04-11 14:55:53,176 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:55:53,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:55:53,181 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:55:53,321 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:53,322 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:55:53,322 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2018-04-11 14:55:53,322 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:55:53,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:53,322 INFO L182 omatonBuilderFactory]: Interpolants [116129#(= 0 |main_#t~malloc0.offset|), 116128#false, 116131#(= 0 main_~x~0.offset), 116130#(= 0 main_~head~0.offset), 116133#(= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)), 116132#(= 0 main_~prev~0.offset), 116135#(and (<= (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= 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))), 116134#(= 0 (select (select |#memory_$Pointer$.offset| main_~prev~0.base) main_~prev~0.offset)), 116137#(and (<= 8 (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))), 116136#(and (= |main_#t~mem14.offset| 0) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (<= (select |#length| |main_#t~mem14.base|) (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 116139#(and (<= 8 (select |#length| |main_#t~mem19.base|)) (= 0 |main_#t~mem19.offset|)), 116138#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 116140#(and (<= 8 (select |#length| main_~x~0.base)) (= 0 main_~x~0.offset)), 116127#true] [2018-04-11 14:55:53,322 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:53,322 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-04-11 14:55:53,322 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-04-11 14:55:53,322 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2018-04-11 14:55:53,323 INFO L87 Difference]: Start difference. First operand 937 states and 1072 transitions. Second operand 14 states. [2018-04-11 14:55:54,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:55:54,089 INFO L93 Difference]: Finished difference Result 1310 states and 1480 transitions. [2018-04-11 14:55:54,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-04-11 14:55:54,089 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 77 [2018-04-11 14:55:54,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:55:54,090 INFO L225 Difference]: With dead ends: 1310 [2018-04-11 14:55:54,090 INFO L226 Difference]: Without dead ends: 1310 [2018-04-11 14:55:54,090 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 570 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=605, Invalid=1945, Unknown=0, NotChecked=0, Total=2550 [2018-04-11 14:55:54,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1310 states. [2018-04-11 14:55:54,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1310 to 1156. [2018-04-11 14:55:54,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1156 states. [2018-04-11 14:55:54,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1354 transitions. [2018-04-11 14:55:54,096 INFO L78 Accepts]: Start accepts. Automaton has 1156 states and 1354 transitions. Word has length 77 [2018-04-11 14:55:54,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:55:54,096 INFO L459 AbstractCegarLoop]: Abstraction has 1156 states and 1354 transitions. [2018-04-11 14:55:54,096 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-04-11 14:55:54,096 INFO L276 IsEmpty]: Start isEmpty. Operand 1156 states and 1354 transitions. [2018-04-11 14:55:54,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-04-11 14:55:54,097 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:55:54,097 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 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 14:55:54,097 INFO L408 AbstractCegarLoop]: === Iteration 103 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:55:54,097 INFO L82 PathProgramCache]: Analyzing trace with hash 2008808726, now seen corresponding path program 6 times [2018-04-11 14:55:54,097 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:55:54,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:55:54,105 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:55:54,938 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:54,938 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:55:54,938 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2018-04-11 14:55:54,938 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:55:54,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:54,939 INFO L182 omatonBuilderFactory]: Interpolants [118681#true, 118683#(= 0 |main_#t~malloc0.offset|), 118682#false, 118685#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base))), 118684#(= 0 main_~head~0.offset), 118687#(and (= 0 main_~head~0.offset) (= main_~x~0.offset main_~head~0.offset) (= |main_#t~malloc2.offset| 0) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 118686#(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)), 118689#(and (= 0 main_~head~0.offset) (= |main_#t~mem3.offset| 0) (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|) (= 1 (select |#valid| main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 118688#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~x~0.base)) (= 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)), 118691#(and (= 0 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)) (= 1 (select |#valid| main_~head~0.base)) (= main_~x~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))), 118690#(and (= 0 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_~head~0.base)) (= main_~x~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))), 118693#(and (= 0 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)) (= main_~x~0.offset 0) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) main_~x~0.base))), 118692#(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~malloc2.base| main_~head~0.base)) (= main_~x~0.offset 0) (not (= main_~x~0.base main_~head~0.base)) (not (= |main_#t~malloc2.base| main_~x~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 118695#(and (= 0 main_~head~0.offset) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 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)) (= main_~x~0.base (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))), 118694#(and (= 0 main_~head~0.offset) (not (= |main_#t~mem3.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= |main_#t~mem3.offset| (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= |main_#t~mem3.base| main_~head~0.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~mem3.base|)), 118697#(and (or (= |main_#t~malloc2.offset| main_~head~0.offset) (not (= main_~head~0.base |main_#t~malloc2.base|))) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~head~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_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~malloc2.base|)) (= main_~x~0.base (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)) (not (= main_~x~0.base |main_#t~malloc2.base|))), 118696#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 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)) (= main_~x~0.base (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))), 118699#(and (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)) 0))) (or (= |main_#t~mem3.offset| main_~head~0.offset) (not (= main_~head~0.base |main_#t~mem3.base|))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (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) |main_#t~mem3.base|)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0) |main_#t~mem3.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem3.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))), 118698#(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_$Pointer$.offset| main_~x~0.base) 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)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~x~0.base)) (not (= main_~head~0.base 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 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~head~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)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 118701#(or (and (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (= 1 (select |#valid| main_~x~0.base)) (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)) 0))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (not (= main_~head~0.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))) (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)))), 118700#(or (and (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) 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 (= main_~x~0.base (select (select |#memory_$Pointer$.base| (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| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (not (= main_~head~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_~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))), 118703#(or (and (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) 0))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) 0))) (= 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_~head~0.offset))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| 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)) 0)))) (= main_~x~0.base main_~head~0.base)) (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)))), 118702#(or (and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) 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| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (not (= main_~head~0.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))) (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)))), 118705#(or (and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| |main_#t~mem12.base|) 0))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem12.base|) 0)) (select (select |#memory_$Pointer$.offset| |main_#t~mem12.base|) 0)))) (not (= main_~x~0.base |main_#t~mem12.base|)) (= |main_#t~mem12.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) (select (select |#memory_$Pointer$.base| |main_#t~mem12.base|) 0))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= |main_#t~mem12.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= |main_#t~mem12.offset| (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)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= |main_#t~mem12.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 118704#(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 (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) main_~x~0.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) 0))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| 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)) 0)))) (not (= main_~x~0.base (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| main_~x~0.base) main_~x~0.offset)))), 118707#(or (and (= 0 main_~next~0.offset) (not (= main_~next~0.base (select (select |#memory_$Pointer$.base| main_~next~0.base) 0))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~next~0.base) 0)) (select (select |#memory_$Pointer$.offset| main_~next~0.base) 0))))) (and (= 0 main_~next~0.offset) (= 0 main_~next~0.base))), 118706#(or (and (= main_~next~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~next~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)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= main_~next~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~next~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) main_~x~0.offset) (select (select |#memory_$Pointer$.base| main_~next~0.base) 0))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~next~0.base) 0)) (select (select |#memory_$Pointer$.offset| main_~next~0.base) 0)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (not (= main_~x~0.base main_~next~0.base)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~next~0.base) 0))))), 118709#(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)))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 118708#(or (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) 0)))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 main_~x~0.offset)) (and (= 0 main_~x~0.base) (= 0 main_~x~0.offset))), 118711#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset))) (not (= main_~x~0.base main_~next~0.base))), 118710#(and (not (= main_~x~0.base |main_#t~mem12.base|)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem12.base|) |main_#t~mem12.offset|)))), 118713#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 118712#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset))), 118715#(= 1 (select |#valid| main_~next~0.base)), 118714#(= 1 (select |#valid| |main_#t~mem12.base|)), 118716#(= 1 (select |#valid| main_~x~0.base))] [2018-04-11 14:55:54,939 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:55:54,939 INFO L442 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-04-11 14:55:54,939 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-04-11 14:55:54,939 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=1157, Unknown=0, NotChecked=0, Total=1260 [2018-04-11 14:55:54,939 INFO L87 Difference]: Start difference. First operand 1156 states and 1354 transitions. Second operand 36 states. [2018-04-11 14:55:59,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:55:59,142 INFO L93 Difference]: Finished difference Result 1698 states and 1969 transitions. [2018-04-11 14:55:59,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2018-04-11 14:55:59,142 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 77 [2018-04-11 14:55:59,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:55:59,143 INFO L225 Difference]: With dead ends: 1698 [2018-04-11 14:55:59,143 INFO L226 Difference]: Without dead ends: 1698 [2018-04-11 14:55:59,143 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3222 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1196, Invalid=9934, Unknown=0, NotChecked=0, Total=11130 [2018-04-11 14:55:59,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1698 states. [2018-04-11 14:55:59,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1698 to 1160. [2018-04-11 14:55:59,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1160 states. [2018-04-11 14:55:59,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1160 states to 1160 states and 1360 transitions. [2018-04-11 14:55:59,156 INFO L78 Accepts]: Start accepts. Automaton has 1160 states and 1360 transitions. Word has length 77 [2018-04-11 14:55:59,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:55:59,156 INFO L459 AbstractCegarLoop]: Abstraction has 1160 states and 1360 transitions. [2018-04-11 14:55:59,156 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-04-11 14:55:59,156 INFO L276 IsEmpty]: Start isEmpty. Operand 1160 states and 1360 transitions. [2018-04-11 14:55:59,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-04-11 14:55:59,156 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:55:59,156 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 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 14:55:59,157 INFO L408 AbstractCegarLoop]: === Iteration 104 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:55:59,157 INFO L82 PathProgramCache]: Analyzing trace with hash 2008808727, now seen corresponding path program 5 times [2018-04-11 14:55:59,157 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:55:59,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:55:59,165 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:56:00,118 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:56:00,118 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:56:00,118 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2018-04-11 14:56:00,118 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:56:00,119 INFO 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 14:56:00,119 INFO L182 omatonBuilderFactory]: Interpolants [121729#(and (= 0 main_~head~0.offset) (= main_~x~0.offset (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 |#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_~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)) (= 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)))), 121728#(and (= 0 main_~head~0.offset) (= |main_#t~mem3.offset| (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)) |main_#t~mem3.base|) (not (= main_~head~0.base |main_#t~mem3.base|)) (= (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_~head~0.base) main_~head~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|))), 121731#(and (= 0 |main_#t~malloc2.offset|) (= 8 (select |#length| |main_#t~malloc2.base|)) (= main_~x~0.offset (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_~head~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_~head~0.base) main_~head~0.offset))) (= |main_#t~malloc2.offset| main_~head~0.offset) (not (= main_~x~0.base main_~head~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~malloc2.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))) (not (= main_~x~0.base |main_#t~malloc2.base|))), 121730#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset (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 |#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_~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)) (= 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)))), 121733#(and (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)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (= |main_#t~mem3.offset| 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| (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~mem3.base|)) (= 0 (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))) (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 (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|)) (not (= main_~head~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)))) (= 8 (select |#length| (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))) (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)))))), 121732#(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))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~x~0.base)) (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) main_~head~0.offset) (not (= main_~head~0.base main_~x~0.base)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.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))))) (not (= main_~head~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)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.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))))), 121735#(or (and (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)) (select (select |#memory_$Pointer$.offset| 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))) (= 0 (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))) (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_~head~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)))) (= 8 (select |#length| (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))) (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)))))) (and (= 0 (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)) (= main_~head~0.base main_~x~0.base))), 121734#(or (and (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)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))) (not (= 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_~head~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_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)) (= 0 (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))) (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_~head~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)))) (= 8 (select |#length| (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))) (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)))))) (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base))), 121737#(or (and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)))) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (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_~head~0.offset))) (= main_~x~0.base main_~head~0.base) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (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_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~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)))), 121736#(or (and (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)) (select (select |#memory_$Pointer$.offset| 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))) (= 0 (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))) (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_~head~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)))) (= 8 (select |#length| (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))) (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)))))) (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)))), 121739#(or (and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| |main_#t~mem12.base|) |main_#t~mem12.offset|))) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) (select (select |#memory_$Pointer$.base| |main_#t~mem12.base|) |main_#t~mem12.offset|))) (not (= main_~x~0.base |main_#t~mem12.base|)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_#t~mem12.base|) |main_#t~mem12.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem12.base|) |main_#t~mem12.offset|))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_#t~mem12.base|) |main_#t~mem12.offset|)) (select (select |#memory_$Pointer$.offset| |main_#t~mem12.base|) |main_#t~mem12.offset|)))) (= |main_#t~mem12.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= |main_#t~mem12.offset| (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)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= |main_#t~mem12.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 121738#(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 (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 0 (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))) (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)))) (not (= main_~x~0.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)))) (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)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))) (= 8 (select |#length| (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))) (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))))))), 121741#(or (and (= 0 main_~next~0.offset) (= 0 main_~next~0.base)) (and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset)) (select (select |#memory_$Pointer$.offset| main_~next~0.base) main_~next~0.offset))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset)) (select (select |#memory_$Pointer$.offset| main_~next~0.base) main_~next~0.offset)))) (not (= main_~next~0.base (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset))))), 121740#(or (and (= main_~next~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~next~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)) (= 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_~next~0.base) main_~next~0.offset)) (select (select |#memory_$Pointer$.offset| main_~next~0.base) main_~next~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset))) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset)) (select (select |#memory_$Pointer$.offset| main_~next~0.base) main_~next~0.offset)))) (= main_~next~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset))) (not (= main_~x~0.base main_~next~0.base)))), 121743#(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))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 8 (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))))), 121742#(or (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))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 8 (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))))) (and (= 0 main_~x~0.base) (= 0 main_~x~0.offset))), 121745#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~next~0.base) main_~next~0.offset)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset))) (not (= main_~x~0.base main_~next~0.base))), 121744#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem12.base|) |main_#t~mem12.offset|)) (not (= main_~x~0.base |main_#t~mem12.base|)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem12.base|) |main_#t~mem12.offset|)))), 121747#(and (= 8 (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))), 121746#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~next~0.base) main_~next~0.offset)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset)))), 121749#(and (= main_~next~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 8 (select |#length| main_~next~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 121748#(and (= |main_#t~mem12.offset| (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)) (= 8 (select |#length| |main_#t~mem12.base|))), 121751#(and (= 8 (select |#length| main_~x~0.base)) (= 0 main_~x~0.offset)), 121750#(and (= 0 main_~next~0.offset) (= 8 (select |#length| main_~next~0.base))), 121715#true, 121717#(= 0 |main_#t~malloc0.offset|), 121716#false, 121719#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base))), 121718#(= 0 main_~head~0.offset), 121721#(and (= 0 main_~head~0.offset) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 121720#(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)), 121723#(and (= 0 main_~head~0.offset) (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|) (= |main_#t~mem3.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1)), 121722#(and (= 0 main_~head~0.offset) (= 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) (= (select |#valid| main_~x~0.base) 1)), 121725#(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))), 121724#(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))), 121727#(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_~x~0.base)) (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)), 121726#(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 main_~head~0.base)) (not (= main_~head~0.base |main_#t~malloc2.base|)) (not (= main_~x~0.base |main_#t~malloc2.base|)))] [2018-04-11 14:56:00,119 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:56:00,119 INFO L442 AbstractCegarLoop]: Interpolant automaton has 37 states [2018-04-11 14:56:00,119 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2018-04-11 14:56:00,120 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=1227, Unknown=0, NotChecked=0, Total=1332 [2018-04-11 14:56:00,120 INFO L87 Difference]: Start difference. First operand 1160 states and 1360 transitions. Second operand 37 states. [2018-04-11 14:56:04,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:56:04,294 INFO L93 Difference]: Finished difference Result 1528 states and 1765 transitions. [2018-04-11 14:56:04,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2018-04-11 14:56:04,294 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 77 [2018-04-11 14:56:04,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:56:04,295 INFO L225 Difference]: With dead ends: 1528 [2018-04-11 14:56:04,295 INFO L226 Difference]: Without dead ends: 1528 [2018-04-11 14:56:04,296 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 1 SyntacticMatches, 5 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2163 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=775, Invalid=7597, Unknown=0, NotChecked=0, Total=8372 [2018-04-11 14:56:04,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1528 states. [2018-04-11 14:56:04,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1528 to 1162. [2018-04-11 14:56:04,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1162 states. [2018-04-11 14:56:04,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1361 transitions. [2018-04-11 14:56:04,300 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1361 transitions. Word has length 77 [2018-04-11 14:56:04,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:56:04,301 INFO L459 AbstractCegarLoop]: Abstraction has 1162 states and 1361 transitions. [2018-04-11 14:56:04,301 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states. [2018-04-11 14:56:04,301 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1361 transitions. [2018-04-11 14:56:04,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-04-11 14:56:04,301 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:56:04,301 INFO L355 BasicCegarLoop]: trace histogram [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, 1] [2018-04-11 14:56:04,301 INFO L408 AbstractCegarLoop]: === Iteration 105 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:56:04,301 INFO L82 PathProgramCache]: Analyzing trace with hash 520929256, now seen corresponding path program 2 times [2018-04-11 14:56:04,302 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:56:04,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:56:04,306 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:56:04,575 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:56:04,575 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:56:04,575 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-04-11 14:56:04,575 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:56:04,575 INFO 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 14:56:04,576 INFO L182 omatonBuilderFactory]: Interpolants [124553#false, 124552#true, 124555#(and (= 1 (select |#valid| main_~head~0.base)) (= (select |#valid| 0) 0)), 124554#(= (select |#valid| 0) 0), 124557#(and (not (= |main_#t~malloc9.base| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= (select |#valid| 0) 0) (= main_~x~0.base main_~head~0.base)), 124556#(and (= main_~x~0.offset main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base)) (= (select |#valid| 0) 0) (= main_~x~0.base main_~head~0.base)), 124559#(and (= |main_#t~mem10.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| 0) 0)), 124558#(and (= main_~x~0.offset main_~head~0.offset) (= (select |#valid| 0) 0) (= main_~x~0.base main_~head~0.base) (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) main_~x~0.base))), 124561#(and (= (select |#valid| 0) 0) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 124560#(and (= (select |#valid| 0) 0) (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))), 124563#(and (= 0 main_~prev~0.base) (not (= main_~x~0.base |main_#t~mem12.base|)) (= (select |#valid| 0) 0)), 124562#(and (= 0 main_~prev~0.base) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= (select |#valid| 0) 0)), 124565#(and (= (select |#valid| 0) 0) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (not (= main_~x~0.base main_~next~0.base))), 124564#(and (= 0 main_~prev~0.base) (= (select |#valid| 0) 0) (not (= main_~x~0.base main_~next~0.base))), 124567#(and (= (select |#valid| 0) 0) (= 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)))), 124566#(and (= (select |#valid| 0) 0) (not (= main_~x~0.base main_~prev~0.base)) (= 0 (select (select |#memory_$Pointer$.base| main_~prev~0.base) main_~prev~0.offset))), 124569#(and (= 0 main_~t2~0) (= 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))) (= main_~t2~0 (select |#valid| 0))), 124568#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~prev~0.base) main_~prev~0.offset)) (select (select |#memory_$Pointer$.offset| main_~prev~0.base) main_~prev~0.offset))) (= (select |#valid| 0) 0)), 124571#(and (= 0 (select (select |#memory_$Pointer$.base| |main_#t~mem18.base|) |main_#t~mem18.offset|)) (not (= (select |#valid| 0) 1))), 124570#(and (not (= (select |#valid| 0) 1)) (= 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)))), 124573#(and (= 0 |main_#t~mem18.base|) (not (= (select |#valid| 0) 1))), 124572#(and (not (= (select |#valid| 0) 1)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 124574#(and (= 0 main_~x~0.base) (not (= (select |#valid| 0) 1)))] [2018-04-11 14:56:04,576 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:56:04,576 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-04-11 14:56:04,576 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-04-11 14:56:04,576 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=440, Unknown=0, NotChecked=0, Total=506 [2018-04-11 14:56:04,576 INFO L87 Difference]: Start difference. First operand 1162 states and 1361 transitions. Second operand 23 states. [2018-04-11 14:56:05,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:56:05,473 INFO L93 Difference]: Finished difference Result 1164 states and 1340 transitions. [2018-04-11 14:56:05,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-04-11 14:56:05,473 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 78 [2018-04-11 14:56:05,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:56:05,474 INFO L225 Difference]: With dead ends: 1164 [2018-04-11 14:56:05,474 INFO L226 Difference]: Without dead ends: 1162 [2018-04-11 14:56:05,474 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=284, Invalid=1972, Unknown=0, NotChecked=0, Total=2256 [2018-04-11 14:56:05,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2018-04-11 14:56:05,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 1096. [2018-04-11 14:56:05,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1096 states. [2018-04-11 14:56:05,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1269 transitions. [2018-04-11 14:56:05,478 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1269 transitions. Word has length 78 [2018-04-11 14:56:05,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:56:05,478 INFO L459 AbstractCegarLoop]: Abstraction has 1096 states and 1269 transitions. [2018-04-11 14:56:05,478 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-04-11 14:56:05,478 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1269 transitions. [2018-04-11 14:56:05,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-04-11 14:56:05,479 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:56:05,479 INFO L355 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 14:56:05,479 INFO L408 AbstractCegarLoop]: === Iteration 106 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:56:05,479 INFO L82 PathProgramCache]: Analyzing trace with hash 816867148, now seen corresponding path program 1 times [2018-04-11 14:56:05,479 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:56:05,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:56:05,483 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:56:05,530 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 14:56:05,530 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:56:05,530 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2018-04-11 14:56:05,530 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:56:05,531 INFO 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 14:56:05,531 INFO L182 omatonBuilderFactory]: Interpolants [126885#true, 126887#(not (= 0 |main_#t~malloc0.base|)), 126886#false, 126889#(not (= 0 main_~x~0.base)), 126888#(not (= 0 main_~head~0.base)), 126891#(not (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 126890#(not (= 0 main_~prev~0.base)), 126893#(not (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 126892#(not (= 0 (select (select |#memory_$Pointer$.base| main_~prev~0.base) main_~prev~0.offset))), 126894#(not (= 0 |main_#t~mem19.base|))] [2018-04-11 14:56:05,531 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 14:56:05,531 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-11 14:56:05,531 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-11 14:56:05,531 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-04-11 14:56:05,531 INFO L87 Difference]: Start difference. First operand 1096 states and 1269 transitions. Second operand 10 states. [2018-04-11 14:56:05,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:56:05,779 INFO L93 Difference]: Finished difference Result 1253 states and 1416 transitions. [2018-04-11 14:56:05,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-04-11 14:56:05,779 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 78 [2018-04-11 14:56:05,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:56:05,780 INFO L225 Difference]: With dead ends: 1253 [2018-04-11 14:56:05,780 INFO L226 Difference]: Without dead ends: 1253 [2018-04-11 14:56:05,780 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=110, Invalid=396, Unknown=0, NotChecked=0, Total=506 [2018-04-11 14:56:05,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1253 states. [2018-04-11 14:56:05,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1253 to 1139. [2018-04-11 14:56:05,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1139 states. [2018-04-11 14:56:05,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1139 states to 1139 states and 1324 transitions. [2018-04-11 14:56:05,786 INFO L78 Accepts]: Start accepts. Automaton has 1139 states and 1324 transitions. Word has length 78 [2018-04-11 14:56:05,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:56:05,786 INFO L459 AbstractCegarLoop]: Abstraction has 1139 states and 1324 transitions. [2018-04-11 14:56:05,786 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-11 14:56:05,786 INFO L276 IsEmpty]: Start isEmpty. Operand 1139 states and 1324 transitions. [2018-04-11 14:56:05,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-04-11 14:56:05,787 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:56:05,787 INFO L355 BasicCegarLoop]: trace histogram [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, 1, 1] [2018-04-11 14:56:05,787 INFO L408 AbstractCegarLoop]: === Iteration 107 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:56:05,787 INFO L82 PathProgramCache]: Analyzing trace with hash 2119582649, now seen corresponding path program 1 times [2018-04-11 14:56:05,788 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:56:05,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:56:05,795 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:56:05,897 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 14:56:05,897 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:56:05,897 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-04-11 14:56:05,898 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:56:05,898 INFO 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 14:56:05,898 INFO L182 omatonBuilderFactory]: Interpolants [129313#true, 129315#(= 1 (select |#valid| main_~head~0.base)), 129314#false, 129317#(and (= 0 |main_#t~malloc2.offset|) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 129316#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 129319#(and (not (= main_~head~0.base |main_#t~mem3.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 129318#(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)), 129321#(= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)), 129320#(and (not (= main_~x~0.base main_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 129323#(= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)), 129322#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (= main_~x~0.base main_~head~0.base)), 129325#(= 0 main_~next~0.offset), 129324#(= 0 |main_#t~mem12.offset|), 129327#(= 0 main_~prev~0.offset), 129326#(= 0 main_~x~0.offset), 129328#(= 0 main_~head~0.offset)] [2018-04-11 14:56:05,898 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 14:56:05,898 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-11 14:56:05,898 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-11 14:56:05,898 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2018-04-11 14:56:05,898 INFO L87 Difference]: Start difference. First operand 1139 states and 1324 transitions. Second operand 16 states. [2018-04-11 14:56:06,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:56:06,451 INFO L93 Difference]: Finished difference Result 1232 states and 1408 transitions. [2018-04-11 14:56:06,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-04-11 14:56:06,452 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 78 [2018-04-11 14:56:06,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:56:06,452 INFO L225 Difference]: With dead ends: 1232 [2018-04-11 14:56:06,452 INFO L226 Difference]: Without dead ends: 1232 [2018-04-11 14:56:06,453 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=226, Invalid=1180, Unknown=0, NotChecked=0, Total=1406 [2018-04-11 14:56:06,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1232 states. [2018-04-11 14:56:06,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1232 to 1121. [2018-04-11 14:56:06,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1121 states. [2018-04-11 14:56:06,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1121 states to 1121 states and 1306 transitions. [2018-04-11 14:56:06,457 INFO L78 Accepts]: Start accepts. Automaton has 1121 states and 1306 transitions. Word has length 78 [2018-04-11 14:56:06,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:56:06,458 INFO L459 AbstractCegarLoop]: Abstraction has 1121 states and 1306 transitions. [2018-04-11 14:56:06,458 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-11 14:56:06,458 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states and 1306 transitions. [2018-04-11 14:56:06,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-04-11 14:56:06,458 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:56:06,458 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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 14:56:06,458 INFO L408 AbstractCegarLoop]: === Iteration 108 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:56:06,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1902144498, now seen corresponding path program 4 times [2018-04-11 14:56:06,459 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:56:06,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:56:06,467 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:56:06,910 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-04-11 14:56:06,911 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:56:06,911 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-04-11 14:56:06,911 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:56:06,911 INFO 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 14:56:06,911 INFO L182 omatonBuilderFactory]: Interpolants [131746#(and (<= (+ main_~x~0.offset 8) (select |#length| main_~x~0.base)) (<= 0 main_~x~0.offset)), 131744#(and (<= (+ |main_#t~mem12.offset| 8) (select |#length| |main_#t~mem12.base|)) (<= 0 |main_#t~mem12.offset|)), 131745#(and (<= 0 main_~next~0.offset) (<= (+ main_~next~0.offset 8) (select |#length| main_~next~0.base))), 131726#true, 131727#false, 131730#(and (not (= 0 main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base)), 131731#(and (not (= 0 main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 131728#(not (= 0 |main_#t~malloc0.base|)), 131729#(not (= 0 main_~head~0.base)), 131734#(and (or (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)) (<= 0 main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base))) (and (or (and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (not (= main_~x~0.offset main_~head~0.offset)) (<= 0 main_~x~0.offset) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (not (= 0 |main_#t~mem4.base|))) (= main_~x~0.base main_~head~0.base))) (= (select |#valid| main_~x~0.base) 1)), 131735#(and (or |main_#t~short6| (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)) (<= 0 main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base))) (and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (not (= main_~x~0.offset main_~head~0.offset)) (<= 0 main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)))) (= (select |#valid| main_~x~0.base) 1)), 131732#(and (= (select |#valid| main_~head~0.base) 1) (not (= 0 main_~head~0.base)) (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem7.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 131733#(or (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))) (and (or (and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (not (= main_~x~0.offset main_~head~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (not (= 0 (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))), 131738#(and (not (= main_~x~0.base |main_#t~malloc9.base|)) (or (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|)) (<= (+ main_~x~0.offset 8) (select |#length| main_~x~0.base)) (<= 0 main_~x~0.offset) (not (= main_~x~0.base main_~head~0.base))) (and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (<= (+ main_~x~0.offset 8) (select |#length| main_~x~0.base)) (not (= main_~x~0.offset main_~head~0.offset)) (<= 0 main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))))), 131739#(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 8) (select |#length| main_~x~0.base)) (<= 0 main_~x~0.offset) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 131736#(and (or (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)) (<= 0 main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base))) (and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (not (= main_~x~0.offset main_~head~0.offset)) (<= 0 main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)))) (= (select |#valid| main_~x~0.base) 1)), 131737#(and (or (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 8) (select |#length| main_~x~0.base)) (<= 0 main_~x~0.offset) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base))) (and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (<= (+ main_~x~0.offset 8) (select |#length| main_~x~0.base)) (not (= main_~x~0.offset main_~head~0.offset)) (<= 0 main_~x~0.offset) (= main_~x~0.base main_~head~0.base) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)))) (= (select |#valid| main_~x~0.base) 1)), 131742#(and (<= (+ (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 8) (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))), 131743#(and (<= (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 8) (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))), 131740#(and (<= (+ (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 8) (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)) (not (= main_~head~0.base |main_#t~mem10.base|))), 131741#(and (<= (+ (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 8) (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)) (not (= main_~x~0.base main_~head~0.base)))] [2018-04-11 14:56:06,911 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-04-11 14:56:06,911 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-11 14:56:06,911 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-11 14:56:06,911 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=362, Unknown=0, NotChecked=0, Total=420 [2018-04-11 14:56:06,911 INFO L87 Difference]: Start difference. First operand 1121 states and 1306 transitions. Second operand 21 states. [2018-04-11 14:56:07,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:56:07,935 INFO L93 Difference]: Finished difference Result 1269 states and 1476 transitions. [2018-04-11 14:56:07,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-04-11 14:56:07,935 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 78 [2018-04-11 14:56:07,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:56:07,936 INFO L225 Difference]: With dead ends: 1269 [2018-04-11 14:56:07,936 INFO L226 Difference]: Without dead ends: 1269 [2018-04-11 14:56:07,936 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=276, Invalid=1364, Unknown=0, NotChecked=0, Total=1640 [2018-04-11 14:56:07,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states. [2018-04-11 14:56:07,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 1124. [2018-04-11 14:56:07,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1124 states. [2018-04-11 14:56:07,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1309 transitions. [2018-04-11 14:56:07,940 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1309 transitions. Word has length 78 [2018-04-11 14:56:07,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:56:07,941 INFO L459 AbstractCegarLoop]: Abstraction has 1124 states and 1309 transitions. [2018-04-11 14:56:07,941 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-11 14:56:07,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1309 transitions. [2018-04-11 14:56:07,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-04-11 14:56:07,941 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:56:07,941 INFO L355 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 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] [2018-04-11 14:56:07,941 INFO L408 AbstractCegarLoop]: === Iteration 109 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:56:07,941 INFO L82 PathProgramCache]: Analyzing trace with hash 1979394537, now seen corresponding path program 1 times [2018-04-11 14:56:07,942 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:56:07,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:56:07,947 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:56:08,290 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:56:08,290 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:56:08,290 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-04-11 14:56:08,291 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:56:08,291 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 14:56:08,291 INFO L182 omatonBuilderFactory]: Interpolants [134182#(= 1 (select |#valid| main_~head~0.base)), 134183#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 134180#true, 134181#false, 134186#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (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)) (= (select |#valid| main_~head~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 134187#(and (= 8 (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_~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_~head~0.base) main_~head~0.offset))), 134184#(and (= 0 |main_#t~malloc2.offset|) (= 8 (select |#length| |main_#t~malloc2.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 134185#(and (= 8 (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)), 134190#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (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))), 134191#(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|)) (= 8 (select |#length| main_~x~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))), 134188#(and (= 8 (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_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 134189#(and (= 8 (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))), 134194#(and (= 8 (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))), 134195#(and (= 8 (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))), 134192#(and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (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))), 134193#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem10.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 134198#(and (= main_~next~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 8 (select |#length| main_~next~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 134199#(and (= 0 main_~next~0.offset) (= 8 (select |#length| main_~next~0.base))), 134196#(and (= 8 (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))), 134197#(and (= |main_#t~mem12.offset| (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)) (= 8 (select |#length| |main_#t~mem12.base|))), 134202#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~prev~0.base) main_~prev~0.offset))) (<= (select (select |#memory_$Pointer$.offset| main_~prev~0.base) main_~prev~0.offset) 0) (<= 0 (select (select |#memory_$Pointer$.offset| main_~prev~0.base) main_~prev~0.offset))), 134203#(and (= 8 (select |#length| |main_#t~mem14.base|)) (<= 0 |main_#t~mem14.offset|) (<= |main_#t~mem14.offset| 0)), 134200#(and (= 8 (select |#length| main_~x~0.base)) (= 0 main_~x~0.offset)), 134201#(and (<= 0 main_~prev~0.offset) (<= main_~prev~0.offset 0) (= 8 (select |#length| main_~prev~0.base)))] [2018-04-11 14:56:08,291 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:56:08,291 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-04-11 14:56:08,291 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-04-11 14:56:08,291 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=478, Unknown=0, NotChecked=0, Total=552 [2018-04-11 14:56:08,291 INFO L87 Difference]: Start difference. First operand 1124 states and 1309 transitions. Second operand 24 states. [2018-04-11 14:56:09,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:56:09,462 INFO L93 Difference]: Finished difference Result 1388 states and 1601 transitions. [2018-04-11 14:56:09,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-04-11 14:56:09,462 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 79 [2018-04-11 14:56:09,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:56:09,463 INFO L225 Difference]: With dead ends: 1388 [2018-04-11 14:56:09,463 INFO L226 Difference]: Without dead ends: 1388 [2018-04-11 14:56:09,463 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 7 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=214, Invalid=1592, Unknown=0, NotChecked=0, Total=1806 [2018-04-11 14:56:09,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1388 states. [2018-04-11 14:56:09,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1388 to 1114. [2018-04-11 14:56:09,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1114 states. [2018-04-11 14:56:09,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1114 states to 1114 states and 1299 transitions. [2018-04-11 14:56:09,468 INFO L78 Accepts]: Start accepts. Automaton has 1114 states and 1299 transitions. Word has length 79 [2018-04-11 14:56:09,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:56:09,468 INFO L459 AbstractCegarLoop]: Abstraction has 1114 states and 1299 transitions. [2018-04-11 14:56:09,468 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-04-11 14:56:09,468 INFO L276 IsEmpty]: Start isEmpty. Operand 1114 states and 1299 transitions. [2018-04-11 14:56:09,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-04-11 14:56:09,468 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:56:09,468 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:56:09,468 INFO L408 AbstractCegarLoop]: === Iteration 110 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:56:09,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1883632701, now seen corresponding path program 5 times [2018-04-11 14:56:09,469 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:56:09,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:56:09,475 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:56:09,836 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:56:09,836 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:56:09,836 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-04-11 14:56:09,837 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:56:09,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:56:09,837 INFO L182 omatonBuilderFactory]: Interpolants [136770#(= 1 (select |#valid| |main_#t~mem12.base|)), 136771#(= 1 (select |#valid| main_~next~0.base)), 136768#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))), 136769#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 136772#(= 1 (select |#valid| main_~x~0.base)), 136746#(= 1 (select |#valid| main_~head~0.base)), 136747#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 136744#true, 136745#false, 136750#(and (not (= main_~head~0.base |main_#t~mem3.base|)) (= |main_#t~mem3.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem3.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1)), 136751#(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))), 136748#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 136749#(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)), 136754#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (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)) (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)))), 136755#(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))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|)) (not (= main_~head~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))))), 136752#(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))), 136753#(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)) (not (= main_~head~0.base |main_#t~malloc2.base|)) (not (= main_~x~0.base |main_#t~malloc2.base|))), 136758#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (not (= main_~x~0.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)))) (= main_~x~0.base main_~head~0.base)), 136759#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (not (= main_~x~0.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)))) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 136756#(and (= 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)) (not (= main_~head~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))))), 136757#(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| (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))))), 136762#(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|))), 136763#(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))), 136760#(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_#t~mem7.base|) |main_#t~mem7.offset|))) (= (select |#valid| main_~head~0.base) 1)), 136761#(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 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 136766#(and (or (= |main_#t~mem10.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_~head~0.base |main_#t~mem10.base|))), 136767#(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))), 136764#(and (not (= main_~head~0.base |main_#t~malloc9.base|)) (not (= 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))) (= |main_#t~malloc9.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 136765#(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)))))] [2018-04-11 14:56:09,837 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:56:09,837 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-04-11 14:56:09,837 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-04-11 14:56:09,837 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=716, Unknown=0, NotChecked=0, Total=812 [2018-04-11 14:56:09,837 INFO L87 Difference]: Start difference. First operand 1114 states and 1299 transitions. Second operand 29 states. [2018-04-11 14:56:11,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:56:11,447 INFO L93 Difference]: Finished difference Result 1284 states and 1490 transitions. [2018-04-11 14:56:11,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2018-04-11 14:56:11,481 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 79 [2018-04-11 14:56:11,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:56:11,481 INFO L225 Difference]: With dead ends: 1284 [2018-04-11 14:56:11,481 INFO L226 Difference]: Without dead ends: 1284 [2018-04-11 14:56:11,482 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 926 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=580, Invalid=3842, Unknown=0, NotChecked=0, Total=4422 [2018-04-11 14:56:11,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1284 states. [2018-04-11 14:56:11,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1284 to 1136. [2018-04-11 14:56:11,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1136 states. [2018-04-11 14:56:11,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1322 transitions. [2018-04-11 14:56:11,487 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 1322 transitions. Word has length 79 [2018-04-11 14:56:11,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:56:11,487 INFO L459 AbstractCegarLoop]: Abstraction has 1136 states and 1322 transitions. [2018-04-11 14:56:11,487 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-04-11 14:56:11,487 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 1322 transitions. [2018-04-11 14:56:11,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-04-11 14:56:11,487 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:56:11,487 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:56:11,487 INFO L408 AbstractCegarLoop]: === Iteration 111 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:56:11,488 INFO L82 PathProgramCache]: Analyzing trace with hash -1883632700, now seen corresponding path program 5 times [2018-04-11 14:56:11,488 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:56:11,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:56:11,494 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:56:11,974 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:56:11,975 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:56:11,975 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-04-11 14:56:11,975 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:56:11,975 INFO 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 14:56:11,975 INFO L182 omatonBuilderFactory]: Interpolants [139270#false, 139271#(= 1 (select |#valid| main_~head~0.base)), 139269#true, 139274#(and (= 8 (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)), 139275#(and (= 8 (select |#length| |main_#t~mem3.base|)) (not (= main_~head~0.base |main_#t~mem3.base|)) (= |main_#t~mem3.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem3.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 139272#(and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 139273#(and (= 0 |main_#t~malloc2.offset|) (= 8 (select |#length| |main_#t~malloc2.base|)) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 139278#(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)) (= 8 (select |#length| main_~x~0.base)) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~head~0.base |main_#t~malloc2.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base |main_#t~malloc2.base|))), 139279#(and (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) (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))) (= 8 (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))), 139276#(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)) (= 8 (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))), 139277#(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)) (= 8 (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))), 139282#(and (= 8 (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| (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_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 139283#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (not (= main_~x~0.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)))) (= main_~x~0.base main_~head~0.base)), 139280#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem3.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|)) (not (= main_~head~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)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 139281#(and (= 8 (select |#length| (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)) (not (= main_~head~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)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 139286#(and (= 8 (select |#length| (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))), 139287#(and (= 8 (select |#length| (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|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 139284#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) (not (= main_~x~0.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)))) (= main_~x~0.base main_~head~0.base) (= (select |#valid| main_~x~0.base) 1)), 139285#(and (= 8 (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_#t~mem7.base|) |main_#t~mem7.offset|))) (= (select |#valid| main_~head~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 139290#(and (= 8 (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))), 139291#(and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (not (= main_~head~0.base |main_#t~mem10.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 139288#(and (= 8 (select |#length| (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_~head~0.base) main_~head~0.offset))), 139289#(and (= 8 (select |#length| (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_~head~0.base) main_~head~0.offset))), 139294#(and (= 8 (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))), 139295#(and (= |main_#t~mem12.offset| (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)) (= 8 (select |#length| |main_#t~mem12.base|))), 139292#(and (= 8 (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))), 139293#(and (= 8 (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))), 139298#(and (= 8 (select |#length| main_~x~0.base)) (= 0 main_~x~0.offset)), 139296#(and (= main_~next~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 8 (select |#length| main_~next~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 139297#(and (= 0 main_~next~0.offset) (= 8 (select |#length| main_~next~0.base)))] [2018-04-11 14:56:11,975 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:56:11,975 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-04-11 14:56:11,976 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-04-11 14:56:11,976 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=761, Unknown=0, NotChecked=0, Total=870 [2018-04-11 14:56:11,976 INFO L87 Difference]: Start difference. First operand 1136 states and 1322 transitions. Second operand 30 states. [2018-04-11 14:56:13,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:56:13,860 INFO L93 Difference]: Finished difference Result 1295 states and 1505 transitions. [2018-04-11 14:56:13,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-04-11 14:56:13,860 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 79 [2018-04-11 14:56:13,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:56:13,861 INFO L225 Difference]: With dead ends: 1295 [2018-04-11 14:56:13,861 INFO L226 Difference]: Without dead ends: 1295 [2018-04-11 14:56:13,861 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 706 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=440, Invalid=3100, Unknown=0, NotChecked=0, Total=3540 [2018-04-11 14:56:13,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1295 states. [2018-04-11 14:56:13,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1295 to 1114. [2018-04-11 14:56:13,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1114 states. [2018-04-11 14:56:13,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1114 states to 1114 states and 1299 transitions. [2018-04-11 14:56:13,866 INFO L78 Accepts]: Start accepts. Automaton has 1114 states and 1299 transitions. Word has length 79 [2018-04-11 14:56:13,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:56:13,866 INFO L459 AbstractCegarLoop]: Abstraction has 1114 states and 1299 transitions. [2018-04-11 14:56:13,866 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-04-11 14:56:13,866 INFO L276 IsEmpty]: Start isEmpty. Operand 1114 states and 1299 transitions. [2018-04-11 14:56:13,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-04-11 14:56:13,866 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:56:13,866 INFO L355 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2018-04-11 14:56:13,866 INFO L408 AbstractCegarLoop]: === Iteration 112 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:56:13,866 INFO L82 PathProgramCache]: Analyzing trace with hash 7485345, now seen corresponding path program 1 times [2018-04-11 14:56:13,867 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:56:13,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:56:13,874 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:56:14,539 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:56:14,539 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:56:14,539 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2018-04-11 14:56:14,539 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:56:14,539 INFO 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 14:56:14,539 INFO L182 omatonBuilderFactory]: Interpolants [141770#(= 0 |main_#t~malloc0.offset|), 141771#(= 0 main_~head~0.offset), 141768#true, 141769#false, 141774#(and (= 0 main_~head~0.offset) (= main_~x~0.offset main_~head~0.offset) (= |main_#t~malloc2.offset| 0) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 141775#(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) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= (select |#valid| main_~x~0.base) 1)), 141772#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base))), 141773#(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)), 141778#(and (= 0 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)) (= main_~x~0.offset 0) (= (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))), 141779#(and (= 0 main_~head~0.offset) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 |main_#t~malloc2.offset|) (= 8 (select |#length| |main_#t~malloc2.base|)) (= main_~x~0.offset 0) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~head~0.base |main_#t~malloc2.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base |main_#t~malloc2.base|))), 141776#(and (= 0 main_~head~0.offset) (not (= main_~head~0.base |main_#t~mem3.base|)) (= 0 |main_#t~mem3.offset|) (= |main_#t~mem3.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 141777#(and (= 0 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 0) (= (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))), 141782#(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)) 0)) (= 8 (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))) (= (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| (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))), 141783#(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)) 0)) (= 8 (select |#length| 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)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~malloc2.base|)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.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))), 141780#(and (= 0 main_~head~0.offset) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (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 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))) (= 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)), 141781#(and (= 0 main_~head~0.offset) (= 8 (select |#length| |main_#t~mem3.base|)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~head~0.base |main_#t~mem3.base|)) (= (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~mem3.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~mem3.base|)), 141786#(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)) 0)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| (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))), 141787#(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))) (= |main_#t~malloc2.offset| 0) (= |main_#t~malloc2.offset| main_~head~0.offset) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| (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))), 141784#(and (= 0 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))) (= (select |#length| main_~x~0.base) 8) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~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)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 141785#(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)) 0)) (not (= main_~head~0.base |main_#t~mem3.base|)) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| (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~mem3.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 141790#(and (or (and (or (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (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)) (or (and (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)))) (and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= main_~x~0.offset 0)))) (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base))) (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_~head~0.base) main_~head~0.offset)))), 141791#(and (or (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (and (or (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (<= 8 (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))), 141788#(and (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 0) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) main_~head~0.offset) (<= 8 (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))), 141789#(and (= |main_#t~mem3.offset| 0) (= |main_#t~mem3.offset| main_~head~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (<= 8 (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))), 141794#(and (or (= 0 main_~x~0.base) (and (or (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (<= 8 (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)))) (= main_~x~0.offset 0)), 141795#(and (= main_~x~0.offset 0) (or (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (<= 8 (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))), 141792#(and (or (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (and (or (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) 0)) (<= 8 (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))), 141793#(and (= 0 |main_#t~mem7.offset|) (or (and (or (<= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem7.base|) 0))) (= 0 (select (select |#memory_$Pointer$.base| |main_#t~mem7.base|) 0))) (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem7.base|) 0))) (= 0 |main_#t~mem7.base|))), 141798#(and (<= (+ main_~x~0.offset 8) (select |#length| main_~x~0.base)) (<= 0 main_~x~0.offset)), 141796#(and (or (<= 8 (select |#length| |main_#t~mem7.base|)) (= 0 |main_#t~mem7.base|)) (= 0 |main_#t~mem7.offset|)), 141797#(and (or (= 0 main_~x~0.base) (<= 8 (select |#length| main_~x~0.base))) (= main_~x~0.offset 0))] [2018-04-11 14:56:14,540 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:56:14,540 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-04-11 14:56:14,540 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-04-11 14:56:14,540 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=810, Unknown=0, NotChecked=0, Total=930 [2018-04-11 14:56:14,540 INFO L87 Difference]: Start difference. First operand 1114 states and 1299 transitions. Second operand 31 states. [2018-04-11 14:56:18,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:56:18,087 INFO L93 Difference]: Finished difference Result 1335 states and 1519 transitions. [2018-04-11 14:56:18,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2018-04-11 14:56:18,087 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 79 [2018-04-11 14:56:18,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:56:18,088 INFO L225 Difference]: With dead ends: 1335 [2018-04-11 14:56:18,088 INFO L226 Difference]: Without dead ends: 1335 [2018-04-11 14:56:18,088 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2195 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1224, Invalid=6258, Unknown=0, NotChecked=0, Total=7482 [2018-04-11 14:56:18,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1335 states. [2018-04-11 14:56:18,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1335 to 1113. [2018-04-11 14:56:18,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1113 states. [2018-04-11 14:56:18,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1113 states to 1113 states and 1297 transitions. [2018-04-11 14:56:18,093 INFO L78 Accepts]: Start accepts. Automaton has 1113 states and 1297 transitions. Word has length 79 [2018-04-11 14:56:18,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:56:18,093 INFO L459 AbstractCegarLoop]: Abstraction has 1113 states and 1297 transitions. [2018-04-11 14:56:18,093 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-04-11 14:56:18,093 INFO L276 IsEmpty]: Start isEmpty. Operand 1113 states and 1297 transitions. [2018-04-11 14:56:18,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-04-11 14:56:18,093 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:56:18,093 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:56:18,093 INFO L408 AbstractCegarLoop]: === Iteration 113 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:56:18,094 INFO L82 PathProgramCache]: Analyzing trace with hash -1654935262, now seen corresponding path program 5 times [2018-04-11 14:56:18,094 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:56:18,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:56:18,103 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:56:18,890 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:56:18,890 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:56:18,890 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2018-04-11 14:56:18,890 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:56:18,890 INFO 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 14:56:18,890 INFO L182 omatonBuilderFactory]: Interpolants [144386#(and (= 8 (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))), 144387#(and (= |main_#t~mem12.offset| (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)) (= 8 (select |#length| |main_#t~mem12.base|))), 144384#(and (or (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~next~0.base) 0))) (= 0 (select (select |#memory_$Pointer$.offset| main_~next~0.base) 0))) (= 0 main_~next~0.base)) (= 0 main_~next~0.offset)), 144385#(and (or (= 0 main_~x~0.base) (and (= 8 (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)), 144390#(and (= 8 (select |#length| main_~x~0.base)) (= 0 main_~x~0.offset)), 144391#(and (<= 0 main_~prev~0.offset) (<= main_~prev~0.offset 0) (= 8 (select |#length| main_~prev~0.base))), 144388#(and (= main_~next~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 8 (select |#length| main_~next~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 144389#(and (= 0 main_~next~0.offset) (= 8 (select |#length| main_~next~0.base))), 144359#true, 144362#(= 0 main_~head~0.offset), 144363#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base))), 144360#false, 144361#(= 0 |main_#t~malloc0.offset|), 144366#(and (= 0 main_~head~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)), 144367#(and (= 0 main_~head~0.offset) (= |main_#t~mem3.offset| 0) (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|) (= (select |#valid| main_~head~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 144364#(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)), 144365#(and (= 0 main_~head~0.offset) (= main_~x~0.offset main_~head~0.offset) (= |main_#t~malloc2.offset| 0) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 144370#(and (= 0 main_~head~0.offset) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 0 |main_#t~malloc2.offset|) (= 8 (select |#length| |main_#t~malloc2.base|)) (= main_~x~0.offset 0) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~head~0.base |main_#t~malloc2.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base |main_#t~malloc2.base|))), 144371#(and (= 0 main_~head~0.offset) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= 8 (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 0) (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)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) 0)) (= (select |#valid| main_~x~0.base) 1)), 144368#(and (= 0 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 0) (= (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))), 144369#(and (= 0 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)) (= main_~x~0.offset 0) (= (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))), 144374#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~x~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 8 (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)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 144375#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 8 (select |#length| main_~x~0.base)) (not (= main_~head~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_~head~0.base) main_~head~0.offset))) (= |main_#t~malloc2.offset| main_~head~0.offset) (not (= main_~x~0.base main_~head~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~malloc2.base|)) (= main_~x~0.base (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))), 144372#(and (= 0 main_~head~0.offset) (= 8 (select |#length| |main_#t~mem3.base|)) (= |main_#t~mem3.base| (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_~head~0.base |main_#t~mem3.base|)) (= (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~mem3.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 144373#(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)) 0)) (= 8 (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)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 144378#(and (or (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.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)) 0)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (not (= main_~head~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_~head~0.base) main_~head~0.offset))) (not (= main_~x~0.base main_~head~0.base)))) (or (= main_~head~0.base main_~x~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)))), 144379#(and (or (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (not (= main_~head~0.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))), 144376#(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_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) main_~head~0.offset) (= 8 (select |#length| main_~x~0.base)) (not (= main_~head~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)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 144377#(and (= |main_#t~mem3.offset| main_~head~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 0))) (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) |main_#t~mem3.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 144382#(and (= |main_#t~mem12.offset| (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)) (or (and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem12.base|) 0)) (not (= main_~x~0.base |main_#t~mem12.base|)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem12.base|) 0)))) (and (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= |main_#t~mem12.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))))), 144383#(and (= main_~next~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (or (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~next~0.base) 0))) (= 0 (select (select |#memory_$Pointer$.offset| main_~next~0.base) 0)) (not (= main_~x~0.base main_~next~0.base))) (and (= main_~next~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= 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))), 144380#(and (or (= 0 (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) 0))) (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) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) 0)))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 144381#(and (or (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| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) 0)) (= 8 (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))) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)))] [2018-04-11 14:56:18,891 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:56:18,891 INFO L442 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-04-11 14:56:18,891 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-04-11 14:56:18,891 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=955, Unknown=0, NotChecked=0, Total=1056 [2018-04-11 14:56:18,891 INFO L87 Difference]: Start difference. First operand 1113 states and 1297 transitions. Second operand 33 states. [2018-04-11 14:56:21,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:56:21,755 INFO L93 Difference]: Finished difference Result 1600 states and 1848 transitions. [2018-04-11 14:56:21,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2018-04-11 14:56:21,756 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 80 [2018-04-11 14:56:21,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:56:21,756 INFO L225 Difference]: With dead ends: 1600 [2018-04-11 14:56:21,756 INFO L226 Difference]: Without dead ends: 1600 [2018-04-11 14:56:21,757 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 3 SyntacticMatches, 6 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1953 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=780, Invalid=6530, Unknown=0, NotChecked=0, Total=7310 [2018-04-11 14:56:21,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1600 states. [2018-04-11 14:56:21,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1600 to 1117. [2018-04-11 14:56:21,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1117 states. [2018-04-11 14:56:21,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1117 states to 1117 states and 1301 transitions. [2018-04-11 14:56:21,762 INFO L78 Accepts]: Start accepts. Automaton has 1117 states and 1301 transitions. Word has length 80 [2018-04-11 14:56:21,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:56:21,762 INFO L459 AbstractCegarLoop]: Abstraction has 1117 states and 1301 transitions. [2018-04-11 14:56:21,762 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-04-11 14:56:21,762 INFO L276 IsEmpty]: Start isEmpty. Operand 1117 states and 1301 transitions. [2018-04-11 14:56:21,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-04-11 14:56:21,762 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:56:21,762 INFO L355 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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 14:56:21,762 INFO L408 AbstractCegarLoop]: === Iteration 114 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:56:21,762 INFO L82 PathProgramCache]: Analyzing trace with hash 1719159036, now seen corresponding path program 7 times [2018-04-11 14:56:21,763 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:56:21,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:56:21,777 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:56:22,705 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:56:22,705 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:56:22,705 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2018-04-11 14:56:22,705 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:56:22,705 INFO 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 14:56:22,705 INFO L182 omatonBuilderFactory]: Interpolants [147215#true, 147218#(= 0 main_~head~0.offset), 147219#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base))), 147216#false, 147217#(= 0 |main_#t~malloc0.offset|), 147222#(and (= 0 main_~head~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)), 147223#(and (= 0 main_~head~0.offset) (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|) (= |main_#t~mem3.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 147220#(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)), 147221#(and (= 0 main_~head~0.offset) (= 0 |main_#t~malloc2.offset|) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 147226#(and (= 0 main_~head~0.offset) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~head~0.base |main_#t~malloc2.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= main_~x~0.base |main_#t~malloc2.base|)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~x~0.base)), 147227#(and (= 0 main_~head~0.offset) (= main_~x~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_~x~0.base) 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))) (= 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)), 147224#(and (= 0 main_~head~0.offset) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| 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_~head~0.base) main_~head~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~x~0.base)), 147225#(and (= 0 main_~head~0.offset) (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| 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 (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~x~0.base)), 147230#(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 (= main_~x~0.base main_~head~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~malloc2.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))) (not (= main_~head~0.base |main_#t~malloc2.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 147231#(and (= 0 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))) (= 1 (select |#valid| main_~x~0.base)) (not (= main_~head~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))) (= 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))) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 147228#(and (= 0 main_~head~0.offset) (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (= |main_#t~mem3.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_~head~0.base) 1) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|)) (= 0 (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 147229#(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))) (= (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| (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_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))), 147234#(and (or (= |main_#t~malloc2.offset| main_~head~0.offset) (not (= main_~head~0.base |main_#t~malloc2.base|))) (or (and (not (= main_~head~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_~head~0.base) main_~head~0.offset))) (or (= |main_#t~malloc2.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))) (= 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 (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~malloc2.base|))) (and (= |main_#t~malloc2.offset| (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_#t~malloc2.base|) (not (= main_~head~0.base |main_#t~malloc2.base|)))) (not (= main_~x~0.base main_~head~0.base))), 147235#(and (or (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) 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)))) (or (and (not (= main_~head~0.base (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) (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| 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)) (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))))) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))))), 147232#(and (= 0 main_~head~0.offset) (not (= main_~head~0.base |main_#t~mem3.base|)) (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) |main_#t~mem3.base|)) (= 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))))), 147233#(and (= 0 main_~head~0.offset) (not (= main_~head~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_~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)) (= 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))))), 147238#(or (and (= 1 (select |#valid| main_~x~0.base)) (not (= main_~head~0.base (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)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))) (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)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~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)))) (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)))), 147239#(or (and (not (= main_~head~0.base (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)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))))) (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_~head~0.base (select (select |#memory_$Pointer$.base| 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)))) (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)))), 147236#(and (or (and (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|) (= |main_#t~mem3.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (and (or (= |main_#t~mem3.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))) (= 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_~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) |main_#t~mem3.base|)))) (or (= |main_#t~mem3.offset| main_~head~0.offset) (not (= main_~head~0.base |main_#t~mem3.base|)))), 147237#(or (and (not (= main_~x~0.base main_~head~0.base)) (or (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))) (and (or (= 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))) (= 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_~head~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_~head~0.base) main_~head~0.offset)))))) (and (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base))), 147242#(or (and (= |main_#t~mem12.offset| (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)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= |main_#t~mem12.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem12.base|) |main_#t~mem12.offset|)) (not (= main_~x~0.base |main_#t~mem12.base|)) (= 0 (select (select |#memory_$Pointer$.base| |main_#t~mem12.base|) |main_#t~mem12.offset|))) (and (not (= main_~x~0.base |main_#t~mem12.base|)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem12.base|) |main_#t~mem12.offset|))))), 147243#(or (and (= main_~next~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~next~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)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= 0 (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~next~0.base) main_~next~0.offset)) (not (= main_~x~0.base main_~next~0.base))) (and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset))) (not (= main_~x~0.base main_~next~0.base)))), 147240#(or (and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (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_~head~0.offset))) (= main_~x~0.base main_~head~0.base)) (and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (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_~head~0.offset))) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~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)))), 147241#(or (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)))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| 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))) (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))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| 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))))), 147246#(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)))), 147247#(or (= 1 (select |#valid| |main_#t~mem12.base|)) (and (= |main_#t~mem12.offset| (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)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= |main_#t~mem12.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 147244#(or (and (= 0 main_~next~0.offset) (= 0 main_~next~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset))) (and (= 0 (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| main_~next~0.base) main_~next~0.offset)))), 147245#(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))) (and (= 0 main_~x~0.base) (= 0 main_~x~0.offset))), 147250#(or (= 1 (select |#valid| main_~x~0.base)) (and (= 0 main_~x~0.base) (= 0 main_~x~0.offset))), 147251#(= 1 (select |#valid| main_~x~0.base)), 147248#(or (and (= main_~next~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~next~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)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 1 (select |#valid| main_~next~0.base))), 147249#(or (and (= 0 main_~next~0.offset) (= 0 main_~next~0.base)) (= 1 (select |#valid| main_~next~0.base)))] [2018-04-11 14:56:22,705 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:56:22,706 INFO L442 AbstractCegarLoop]: Interpolant automaton has 37 states [2018-04-11 14:56:22,706 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2018-04-11 14:56:22,706 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=1196, Unknown=0, NotChecked=0, Total=1332 [2018-04-11 14:56:22,706 INFO L87 Difference]: Start difference. First operand 1117 states and 1301 transitions. Second operand 37 states. [2018-04-11 14:56:25,699 WARN L151 SmtUtils]: Spent 100ms on a formula simplification. DAG size of input: 103 DAG size of output 61 [2018-04-11 14:56:27,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:56:27,353 INFO L93 Difference]: Finished difference Result 1520 states and 1739 transitions. [2018-04-11 14:56:27,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2018-04-11 14:56:27,353 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 80 [2018-04-11 14:56:27,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:56:27,354 INFO L225 Difference]: With dead ends: 1520 [2018-04-11 14:56:27,354 INFO L226 Difference]: Without dead ends: 1520 [2018-04-11 14:56:27,354 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3000 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1528, Invalid=8978, Unknown=0, NotChecked=0, Total=10506 [2018-04-11 14:56:27,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1520 states. [2018-04-11 14:56:27,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1520 to 1180. [2018-04-11 14:56:27,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1180 states. [2018-04-11 14:56:27,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 1377 transitions. [2018-04-11 14:56:27,360 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 1377 transitions. Word has length 80 [2018-04-11 14:56:27,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:56:27,360 INFO L459 AbstractCegarLoop]: Abstraction has 1180 states and 1377 transitions. [2018-04-11 14:56:27,360 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states. [2018-04-11 14:56:27,360 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 1377 transitions. [2018-04-11 14:56:27,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-04-11 14:56:27,360 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:56:27,360 INFO L355 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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 14:56:27,361 INFO L408 AbstractCegarLoop]: === Iteration 115 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:56:27,361 INFO L82 PathProgramCache]: Analyzing trace with hash 1719159037, now seen corresponding path program 6 times [2018-04-11 14:56:27,361 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:56:27,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:56:27,372 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:56:28,123 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:56:28,123 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:56:28,123 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2018-04-11 14:56:28,123 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:56:28,123 INFO 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 14:56:28,124 INFO L182 omatonBuilderFactory]: Interpolants [150086#(= 0 |main_#t~malloc0.offset|), 150087#(= 0 main_~head~0.offset), 150084#true, 150085#false, 150090#(and (= 0 main_~head~0.offset) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 150091#(and (= 0 main_~head~0.offset) (= 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) (= (select |#valid| main_~x~0.base) 1)), 150088#(and (= 0 main_~head~0.offset) (= 1 (select |#valid| main_~head~0.base))), 150089#(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)), 150094#(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))), 150095#(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)) (= 0 |main_#t~malloc2.offset|) (= 8 (select |#length| |main_#t~malloc2.base|)) (= (select |#valid| main_~head~0.base) 1) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~head~0.base |main_#t~malloc2.base|)) (not (= main_~x~0.base |main_#t~malloc2.base|))), 150092#(and (= 0 main_~head~0.offset) (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|) (= |main_#t~mem3.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= (select |#valid| main_~head~0.base) 1)), 150093#(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))), 150098#(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))) (= 8 (select |#length| main_~x~0.base)) (= (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_~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))) (= (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| (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)))), 150099#(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))) (= 8 (select |#length| main_~x~0.base)) (not (= main_~head~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_~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)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~malloc2.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))) (not (= main_~head~0.base |main_#t~malloc2.base|))), 150096#(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)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (not (= main_~head~0.base main_~x~0.base)) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) 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))) (= 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)), 150097#(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))) (= 8 (select |#length| |main_#t~mem3.base|)) (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select |#valid| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) 1) (= |main_#t~mem3.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_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (select |#valid| main_~head~0.base) 1) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|))), 150102#(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))) (= 8 (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_~head~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_~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))), 150103#(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))) (= 8 (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_~head~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_~head~0.base) main_~head~0.offset))) (= |main_#t~malloc2.offset| main_~head~0.offset) (not (= main_~x~0.base main_~head~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~malloc2.base|))), 150100#(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))) (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))) (= 8 (select |#length| main_~x~0.base)) (not (= main_~head~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_~head~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 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)))), 150101#(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))) (= 8 (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_~head~0.base |main_#t~mem3.base|)) (not (= main_~head~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 (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|))), 150106#(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))) (= 8 (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_~head~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_~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))), 150107#(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))) (= 8 (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_~head~0.base (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)))), 150104#(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 (= (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))) (= 8 (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)))) (= (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) main_~head~0.offset) (not (= main_~head~0.base (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))), 150105#(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~mem3.offset| main_~head~0.offset) (= 8 (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_~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) |main_#t~mem3.base|))), 150110#(or (and (= 0 (select (select |#memory_$Pointer$.offset| |main_#t~mem12.base|) |main_#t~mem12.offset|)) (not (= main_~x~0.base |main_#t~mem12.base|)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| |main_#t~mem12.base|) |main_#t~mem12.offset|)))) (and (= |main_#t~mem12.offset| (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)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= |main_#t~mem12.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))), 150111#(or (and (= main_~next~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= main_~next~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)) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (= 0 (select (select |#memory_$Pointer$.offset| main_~next~0.base) main_~next~0.offset)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset))) (not (= main_~x~0.base main_~next~0.base)))), 150108#(or (and (= 8 (select |#length| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (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_~head~0.offset))) (= main_~x~0.base main_~head~0.base) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~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)))), 150109#(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))) (not (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 8 (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)))))), 150114#(and (= 8 (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))), 150115#(and (= |main_#t~mem12.offset| (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)) (= 8 (select |#length| |main_#t~mem12.base|))), 150112#(or (and (= 0 main_~next~0.offset) (= 0 main_~next~0.base)) (and (= 0 (select (select |#memory_$Pointer$.offset| main_~next~0.base) main_~next~0.offset)) (= 8 (select |#length| (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset))))), 150113#(or (and (= 8 (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))), 150118#(and (= 8 (select |#length| main_~x~0.base)) (= 0 main_~x~0.offset)), 150116#(and (= main_~next~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (= 8 (select |#length| main_~next~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 150117#(and (= 0 main_~next~0.offset) (= 8 (select |#length| main_~next~0.base)))] [2018-04-11 14:56:28,124 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 14:56:28,124 INFO L442 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-04-11 14:56:28,124 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-04-11 14:56:28,124 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=1067, Unknown=0, NotChecked=0, Total=1190 [2018-04-11 14:56:28,124 INFO L87 Difference]: Start difference. First operand 1180 states and 1377 transitions. Second operand 35 states. [2018-04-11 14:56:31,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 14:56:31,090 INFO L93 Difference]: Finished difference Result 1599 states and 1848 transitions. [2018-04-11 14:56:31,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2018-04-11 14:56:31,090 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 80 [2018-04-11 14:56:31,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 14:56:31,091 INFO L225 Difference]: With dead ends: 1599 [2018-04-11 14:56:31,091 INFO L226 Difference]: Without dead ends: 1599 [2018-04-11 14:56:31,091 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2070 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=925, Invalid=6731, Unknown=0, NotChecked=0, Total=7656 [2018-04-11 14:56:31,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1599 states. [2018-04-11 14:56:31,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1599 to 1179. [2018-04-11 14:56:31,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1179 states. [2018-04-11 14:56:31,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1179 states to 1179 states and 1375 transitions. [2018-04-11 14:56:31,097 INFO L78 Accepts]: Start accepts. Automaton has 1179 states and 1375 transitions. Word has length 80 [2018-04-11 14:56:31,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 14:56:31,097 INFO L459 AbstractCegarLoop]: Abstraction has 1179 states and 1375 transitions. [2018-04-11 14:56:31,097 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-04-11 14:56:31,097 INFO L276 IsEmpty]: Start isEmpty. Operand 1179 states and 1375 transitions. [2018-04-11 14:56:31,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-04-11 14:56:31,097 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 14:56:31,097 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 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] [2018-04-11 14:56:31,098 INFO L408 AbstractCegarLoop]: === Iteration 116 === [mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr51AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr52EnsuresViolationMEMORY_LEAK, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr50AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-04-11 14:56:31,098 INFO L82 PathProgramCache]: Analyzing trace with hash 41008354, now seen corresponding path program 2 times [2018-04-11 14:56:31,098 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 14:56:31,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 14:56:31,104 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 14:56:32,227 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 14:56:32,227 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 14:56:32,245 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2018-04-11 14:56:32,245 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 14:56:32,246 INFO 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 14:56:32,246 INFO L182 omatonBuilderFactory]: Interpolants [153026#(and (or (not (= (select (select |#memory_$Pointer$.base| main_~next~0.base) main_~next~0.offset) 0)) (= main_~x~0.base main_~next~0.base) (= 1 (select |#valid| 0))) (= main_~x~0.offset 0) (or (= 1 (select |#valid| 0)) (not (= (select |#length| main_~next~0.base) (select |#length| main_~x~0.base))) (and (<= (+ main_~next~0.offset 8) (select |#length| main_~x~0.base)) (= 8 (select |#length| main_~x~0.base)))) (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 153027#(or (and (= main_~x~0.base main_~prev~0.base) (= main_~x~0.offset main_~prev~0.offset)) (and (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~prev~0.offset)) (= main_~x~0.base main_~prev~0.base) (= 1 (select |#valid| 0))) (<= (+ main_~x~0.offset 1) 0) (and (not (= main_~x~0.base main_~prev~0.base)) (= 0 (select (select |#memory_$Pointer$.base| main_~prev~0.base) main_~prev~0.offset)) (or (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) 0)) (= 1 (select |#valid| 0))))), 153024#(and (or (and (not (= (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select |#length| main_~x~0.base))) (= |main_#t~mem12.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 1 (select |#valid| 0)) (and (= 8 (select |#length| main_~x~0.base)) (<= (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 8) (select |#length| main_~x~0.base)))) (= 0 main_~prev~0.base) (= main_~x~0.offset 0) (or (and (not (= main_~x~0.base |main_#t~mem12.base|)) (not (= (select (select |#memory_$Pointer$.base| |main_#t~mem12.base|) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) 0))) (= 1 (select |#valid| 0)) (and (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= |main_#t~mem12.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))) (= |main_#t~mem12.offset| (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset))), 153025#(and (= 0 main_~prev~0.base) (= main_~next~0.offset (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) (or (= 1 (select |#valid| 0)) (and (= main_~next~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (and (not (= (select (select |#memory_$Pointer$.base| main_~next~0.base) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset)) 0)) (not (= main_~x~0.base main_~next~0.base)))) (or (and (= main_~next~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (not (= (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (select |#length| main_~x~0.base)))) (= 1 (select |#valid| 0)) (and (= 8 (select |#length| main_~x~0.base)) (<= (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 8) (select |#length| main_~x~0.base)))) (= main_~x~0.offset 0)), 153030#(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 (not (= main_~next~0.base 0)) (= 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))))), 153031#(or (and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~prev~0.base) main_~prev~0.offset)) (select (select |#memory_$Pointer$.offset| main_~prev~0.base) main_~prev~0.offset))) (not (= main_~x~0.base 0))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~prev~0.base) main_~prev~0.offset)) (select (select |#memory_$Pointer$.offset| main_~prev~0.base) main_~prev~0.offset))))), 153028#(or (and (or (= 1 (select |#valid| 0)) (and (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) 0)) (= |main_#t~mem12.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)))) (not (= main_~x~0.base main_~prev~0.base)) (= 0 (select (select |#memory_$Pointer$.base| main_~prev~0.base) main_~prev~0.offset))) (and (or (and (= main_~x~0.base main_~prev~0.base) (= main_~x~0.offset main_~prev~0.offset)) (and (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~prev~0.offset)) (= main_~x~0.base main_~prev~0.base) (= 1 (select |#valid| 0)))) (= (select |#valid| main_~x~0.base) 1))), 153029#(or (and (or (and (not (= (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset) 0)) (= main_~next~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 1 (select |#valid| 0))) (not (= main_~x~0.base main_~prev~0.base)) (= 0 (select (select |#memory_$Pointer$.base| main_~prev~0.base) main_~prev~0.offset))) (and (or (and (= main_~x~0.base main_~prev~0.base) (= main_~x~0.offset main_~prev~0.offset)) (and (= 0 (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~prev~0.offset)) (= main_~x~0.base main_~prev~0.base) (= 1 (select |#valid| 0)))) (= (select |#valid| main_~x~0.base) 1))), 153034#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |main_#t~mem18.base|) |main_#t~mem18.offset|))), 153035#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))), 153032#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~prev~0.base) main_~prev~0.offset)) (select (select |#memory_$Pointer$.offset| main_~prev~0.base) main_~prev~0.offset)))), 153033#(= 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)))), 153036#(= 1 (select |#valid| |main_#t~mem14.base|)), 153003#true, 153006#(and (= 8 (select |#length| |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|) (= (select |#valid| 0) 0)), 153007#(and (= 0 main_~head~0.offset) (= 8 (select |#length| main_~head~0.base)) (= (select |#valid| 0) 0)), 153004#false, 153005#(= (select |#valid| 0) 0), 153010#(and (= 0 main_~head~0.offset) (= 8 (select |#length| main_~head~0.base)) (= main_~x~0.offset main_~head~0.offset) (= (select |#valid| 0) 0) (= main_~x~0.base main_~head~0.base) (not (= main_~x~0.base |main_#t~malloc2.base|))), 153011#(and (= 0 main_~head~0.offset) (= 8 (select |#length| main_~head~0.base)) (= 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) (= (select |#valid| 0) 0) (= main_~x~0.base main_~head~0.base)), 153008#(and (= 0 main_~head~0.offset) (= 8 (select |#length| main_~head~0.base)) (= 1 (select |#valid| main_~head~0.base)) (= (select |#valid| 0) 0)), 153009#(and (= 0 main_~head~0.offset) (= 8 (select |#length| main_~head~0.base)) (= 1 (select |#valid| main_~x~0.base)) (= main_~x~0.offset main_~head~0.offset) (= (select |#valid| 0) 0) (= main_~x~0.base main_~head~0.base)), 153014#(and (= 0 main_~head~0.offset) (or (and (= 8 (select |#length| main_~x~0.base)) (= main_~x~0.base main_~head~0.base)) (and (= 8 (select |#length| main_~head~0.base)) (= (select |#valid| 0) 0))) (or (and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~x~0.base)) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~x~0.base main_~head~0.base)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~x~0.base)) (= 1 (select |#valid| 0)))), 153015#(and (= 0 main_~head~0.offset) (or (and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= |main_#t~malloc2.base| 0)) (not (= main_~x~0.base main_~head~0.base)) (not (= main_~head~0.base |main_#t~malloc2.base|)) (not (= main_~x~0.base |main_#t~malloc2.base|)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~x~0.base)) (= 1 (select |#valid| 0))) (or (= 8 (select |#length| main_~head~0.base)) (= 1 (select |#valid| 0)))), 153012#(and (= 0 main_~head~0.offset) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.offset|) (= 8 (select |#length| main_~head~0.base)) (not (= main_~head~0.base |main_#t~mem3.base|)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|) (= 1 (select |#valid| main_~head~0.base)) (= (select |#valid| 0) 0)), 153013#(and (= 0 main_~head~0.offset) (or (and (= 8 (select |#length| main_~x~0.base)) (= main_~x~0.base main_~head~0.base)) (and (= 8 (select |#length| main_~head~0.base)) (= (select |#valid| 0) 0))) (or (and (= main_~x~0.offset (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (= 1 (select |#valid| main_~head~0.base)) (not (= main_~x~0.base main_~head~0.base)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~x~0.base)) (= 1 (select |#valid| 0)))), 153018#(and (= 0 main_~head~0.offset) (or (= 1 (select |#valid| 0)) (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)) (not (= (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)))) (or (= 8 (select |#length| main_~head~0.base)) (= 1 (select |#valid| 0)))), 153019#(and (= 0 main_~head~0.offset) (or (= 1 (select |#valid| 0)) (not (= (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))) (or (= 8 (select |#length| main_~head~0.base)) (= 1 (select |#valid| 0)))), 153016#(and (= 0 main_~head~0.offset) (or (and (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 (select |#memory_$Pointer$.base| main_~x~0.base) (select (select |#memory_$Pointer$.offset| 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)) (= 1 (select |#valid| 0))) (or (= 8 (select |#length| main_~head~0.base)) (= 1 (select |#valid| 0)))), 153017#(and (= 0 main_~head~0.offset) (or (= 1 (select |#valid| 0)) (and (not (= main_~head~0.base |main_#t~mem3.base|)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) |main_#t~mem3.base|)) (not (= (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)))) (or (= 8 (select |#length| main_~head~0.base)) (= 1 (select |#valid| 0)))), 153022#(and (= 0 main_~head~0.offset) (or (= 1 (select |#valid| 0)) (not (= (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))) (or (and (= 8 (select |#length| main_~head~0.base)) (<= (+ (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) 8) (select |#length| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)))) (= 1 (select |#valid| 0)))), 153023#(and (= 0 main_~prev~0.base) (or (= 1 (select |#valid| 0)) (and (<= (+ (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~x~0.offset) 8) (select |#length| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset))) (= 8 (select |#length| main_~x~0.base)))) (or (= main_~x~0.base (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~x~0.offset)) (= 1 (select |#valid| 0)) (not (= (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))) (= 0 main_~x~0.offset)), 153020#(and (= 0 main_~head~0.offset) (or (= 8 (select |#length| main_~x~0.base)) (= 1 (select |#valid| 0))) (= main_~x~0.offset main_~head~0.offset) (= main_~x~0.base main_~head~0.base) (or (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~x~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~x~0.base) main_~head~0.offset)) 0)) (= 1 (select |#valid| 0)))), 153021#(and (= 0 main_~head~0.offset) (or (= 1 (select |#valid| 0)) (not (= (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~mem11.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (= |main_#t~mem11.offset| (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (or (= 8 (select |#length| main_~head~0.base)) (= 1 (select |#valid| 0))))] [2018-04-11 14:56:32,246 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 14:56:32,246 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-04-11 14:56:32,246 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-04-11 14:56:32,246 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=1030, Unknown=0, NotChecked=0, Total=1122 [2018-04-11 14:56:32,246 INFO L87 Difference]: Start difference. First operand 1179 states and 1375 transitions. Second operand 34 states. Received shutdown request... [2018-04-11 14:56:32,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-11 14:56:32,923 WARN L519 AbstractCegarLoop]: Verification canceled [2018-04-11 14:56:32,927 WARN L197 ceAbstractionStarter]: Timeout [2018-04-11 14:56:32,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.04 02:56:32 BoogieIcfgContainer [2018-04-11 14:56:32,927 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-11 14:56:32,927 INFO L168 Benchmark]: Toolchain (without parser) took 177897.90 ms. Allocated memory was 406.8 MB in the beginning and 864.6 MB in the end (delta: 457.7 MB). Free memory was 339.6 MB in the beginning and 475.2 MB in the end (delta: -135.6 MB). Peak memory consumption was 322.1 MB. Max. memory is 5.3 GB. [2018-04-11 14:56:32,928 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 406.8 MB. Free memory is still 364.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 14:56:32,928 INFO L168 Benchmark]: CACSL2BoogieTranslator took 239.19 ms. Allocated memory is still 406.8 MB. Free memory was 338.3 MB in the beginning and 309.2 MB in the end (delta: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 5.3 GB. [2018-04-11 14:56:32,929 INFO L168 Benchmark]: Boogie Preprocessor took 41.70 ms. Allocated memory is still 406.8 MB. Free memory was 309.2 MB in the beginning and 306.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-04-11 14:56:32,929 INFO L168 Benchmark]: RCFGBuilder took 505.52 ms. Allocated memory was 406.8 MB in the beginning and 600.3 MB in the end (delta: 193.5 MB). Free memory was 306.6 MB in the beginning and 518.7 MB in the end (delta: -212.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 5.3 GB. [2018-04-11 14:56:32,929 INFO L168 Benchmark]: TraceAbstraction took 177108.69 ms. Allocated memory was 600.3 MB in the beginning and 864.6 MB in the end (delta: 264.2 MB). Free memory was 518.7 MB in the beginning and 475.2 MB in the end (delta: 43.5 MB). Peak memory consumption was 307.8 MB. Max. memory is 5.3 GB. [2018-04-11 14:56:32,930 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 406.8 MB. Free memory is still 364.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 239.19 ms. Allocated memory is still 406.8 MB. Free memory was 338.3 MB in the beginning and 309.2 MB in the end (delta: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 41.70 ms. Allocated memory is still 406.8 MB. Free memory was 309.2 MB in the beginning and 306.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 505.52 ms. Allocated memory was 406.8 MB in the beginning and 600.3 MB in the end (delta: 193.5 MB). Free memory was 306.6 MB in the beginning and 518.7 MB in the end (delta: -212.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 5.3 GB. * TraceAbstraction took 177108.69 ms. Allocated memory was 600.3 MB in the beginning and 864.6 MB in the end (delta: 264.2 MB). Free memory was 518.7 MB in the beginning and 475.2 MB in the end (delta: 43.5 MB). Peak memory consumption was 307.8 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1006]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1006). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1004]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1004). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1006]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1006). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1034]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1034). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 985]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 985). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1009]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1009). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1041]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1041). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1009]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1009). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 986]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 986). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 998]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 998). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1049]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1049). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 995]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 995). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 991]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 991). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1018]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1018). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1002]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1002). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1038]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1038). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1009]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1009). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 991]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 991). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1006]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1006). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1039]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1039). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 991]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 991). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1038]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1038). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 991]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 991). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1031]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1031). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 991]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 991). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 995]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 995). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1031]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1031). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1050]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 1050). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1009]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1009). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1016]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1016). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1006]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1006). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1034]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1034). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1049]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1049). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 981]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 981). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1034]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1034). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1002]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1002). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1006]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1006). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 986]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 986). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1039]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1039). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1004]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1004). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1006]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1006). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1016]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1016). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1006]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1006). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 985]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 985). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 991]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 991). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 991]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 991). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1006]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1006). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1050]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 1050). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 991]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 991). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1018]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1018). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1041]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1041). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 998]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 998). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1034]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1034). Cancelled while BasicCegarLoop was constructing difference of abstraction (1179states) and interpolant automaton (currently 17 states, 34 states before enhancement), while ReachableStatesComputation was computing reachable states (60 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 136 locations, 53 error locations. TIMEOUT Result, 177.0s OverallTime, 116 OverallIterations, 6 TraceHistogramMax, 138.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 12421 SDtfs, 65433 SDslu, 113702 SDs, 0 SdLazy, 171983 SolverSat, 11692 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 61.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5216 GetRequests, 305 SyntacticMatches, 185 SemanticMatches, 4726 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65744 ImplicationChecksByTransitivity, 94.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1180occurred in iteration=114, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 237/3217 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 115 MinimizatonAttempts, 12734 StatesRemovedByMinimization, 114 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 36.3s InterpolantComputationTime, 6908 NumberOfCodeBlocks, 6908 NumberOfCodeBlocksAsserted, 116 NumberOfCheckSat, 6792 ConstructedInterpolants, 0 QuantifiedInterpolants, 9076204 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 116 InterpolantComputations, 16 PerfectInterpolantSequences, 237/3217 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-reverse_simple_true-unreach-call_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_Array.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-11_14-56-32-936.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/sll-reverse_simple_true-unreach-call_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_Array.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-11_14-56-32-936.csv Completed graceful shutdown