Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided in four parts:
  1. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provide some useful information on the computer.
  2. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser !
  3. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to 1200 seconds. After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to 1230 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (900Mb).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  4. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.

General information on the benchmark

Namesubmitted/aloul/FPGA_SAT05/normalized-fpga30_28_sat_pb.cnf.cr.opb
MD5SUM888577ab8fe81abf9fdd366d65e4c3b7
Bench Categoryno optimization function (SAT)
Has Objective FunctionNO
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 0
Optimality of the best value was proved NO
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 31
Number of bits of the biggest sum of numbers5
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.789879
Number of variables1260
Total number of constraints926
Number of constraints which are clauses868
Number of constraints which are cardinality constraints (but not clauses)58
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint15
Maximum length of a constraint30

Trace number 9484

Launcher Data

LAUNCH ON wulflinc23 THE 2005-09-23 14:10:44 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8246 boxname=wulflinc23 idbench=42 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  888577ab8fe81abf9fdd366d65e4c3b7  /oldhome/oroussel/tmp/wulflinc23/normalized-fpga30_28_sat_pb.cnf.cr.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc23/normalized-fpga30_28_sat_pb.cnf.cr.opb
IDLAUNCH: 8246
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.185
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 888.83

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.185
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        924872 kB
Buffers:         13464 kB
Cached:          78064 kB
SwapCached:          0 kB
Active:          59304 kB
Inactive:        35156 kB
HighTotal:      131008 kB
HighFree:        48636 kB
LowTotal:       903652 kB
LowFree:        876236 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              40 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             9816 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 14:10:55 (client local time) WITH STATUS 10 IN 9.02263 SECONDS
stats: 8246 0 9.02263 10

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...

c Decision: 1202/3664	Time: 7.04393/86400
c Decision: 1202/3664	Time: 8.24475/86400
s SATISFIABLE
v -v1 -v10 -v100 -v1000 -v1001 -v1002 -v1003 -v1004 -v1005 -v1006 -v1007 -v1008 v1009 -v101 -v1010 -v1011 -v1012 -v1013 -v1014 -v1015 -v1016 -v1017 -v1018 -v1019 -v102 -v1020 -v1021 -v1022 -v1023 -v1024 -v1025 -v1026 -v1027 -v1028 -v1029 -v103 v1030 -v1031 -v1032 -v1033 -v1034 -v1035 -v1036 -v1037 -v1038 -v1039 -v104 -v1040 -v1041 -v1042 -v1043 -v1044 -v1045 -v1046 -v1047 -v1048 -v1049 -v105 v1050 -v1051 -v1052 -v1053 -v1054 -v1055 -v1056 -v1057 v1058 -v1059 -v106 -v1060 -v1061 -v1062 -v1063 -v1064 -v1065 -v1066 -v1067 -v1068 -v1069 -v107 -v1070 -v1071 -v1072 -v1073 -v1074 v1075 -v1076 -v1077 -v1078 -v1079 -v108 -v1080 -v1081 -v1082 -v1083 -v1084 -v1085 -v1086 -v1087 -v1088 -v1089 -v109 -v1090 -v1091 -v1092 -v1093 -v1094 -v1095 -v1096 -v1097 v1098 -v1099 -v11 -v110 -v1100 -v1101 -v1102 -v1103 -v1104 -v1105 -v1106 -v1107 -v1108 -v1109 -v111 -v1110 v1111 -v1112 -v1113 -v1114 -v1115 -v1116 -v1117 -v1118 -v1119 -v112 -v1120 -v1121 -v1122 -v1123 -v1124 -v1125 -v1126 -v1127 -v1128 v1129 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Watcher Data

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGTERM then SIGKILL): 921600 Kb
Enforcing VSIZE limit: 994918400 bytes
Current StackSize limit: 67108864 bytes
Raw data (/proc/6494/stat): 6494 (pb2sat) R 6493 6494 4060 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 20798583 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/6494/statm): 373 2 364 364 0 9 0
[pid=6494] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc23/normalized-fpga30_28_sat_pb.cnf.cr.opb

[startup+10.0021 s]
Raw data (loadavg): 0.90 0.97 0.99 1/55 6494
Raw data (/proc/6494/stat): 6494 (pb2sat) T 6493 6494 4060 0 -1 0 1424 0 0 0 711 93 0 0 18 0 1 0 20798583 6651904 1216 4294967295 134512640 135987407 3221224560 3221223388 135541329 0 0 5 16384 3222434794 0 0 17 1 0 0
Raw data (/proc/6494/statm): 1624 1216 364 364 0 1260 0
[pid=6494] vsize: 6496
Current children cumulated CPU time (s) 8.04
Current children cumulated vsize (Kb) 6496
One traced child (pid=6494) exited with status: 10
All traced children have exited ! Game is over.

Child status: 10
Real time (s): 11.187
CPU time (s): 9.02263
CPU user time (s): 7.99378
CPU system time (s): 1.02884
CPU usage (%): 80.6525
Max. virtual memory (cumulated for all children) (Kb): 6496

Verifier Data

Verifier:	OK	0