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).
  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

Namenormalized-opb/web/uclid_pb_benchmarks/normalized-ooo.burch_dill.2.accl.ucl.opb
MD5SUM83f02a556772ce851c726a7388954d36
Bench Categoryno optimization function (SAT)
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
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 35
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 129
Number of bits of the biggest sum of numbers8
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark3.58545
Number of variables2152
Total number of constraints5613
Number of constraints which are clauses5137
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints476
Minimum length of a constraint1
Maximum length of a constraint11

Trace number 33736 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc28 THE 2005-05-27 15:59:08 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=2663 boxname=wulflinc28 idbench=296 idsolver=8 numberseed=0
MD5SUM SOLVER: 4b637b3b6117f2add1a6288e91336322  /oldhome/oroussel/solvers/vallstSAT2005PB.sh
MD5SUM BENCH:  83f02a556772ce851c726a7388954d36  /oldhome/oroussel/tmp/wulflinc28/normalized-ooo.burch_dill.2.accl.ucl.opb
REAL COMMAND:  vallstSAT2005PB.sh /oldhome/oroussel/tmp/wulflinc28/normalized-ooo.burch_dill.2.accl.ucl.opb 0
IDLAUNCH: 2663
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.077
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		: 451.077
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	: 899.07

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        737792 kB
Buffers:         24232 kB
Cached:         250980 kB
SwapCached:        800 kB
Active:          46828 kB
Inactive:       230680 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        737540 kB
SwapTotal:     2097640 kB
SwapFree:      2096144 kB
Dirty:              56 kB
Writeback:           0 kB
Mapped:           5452 kB
Slab:            13752 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-27 16:00:46 (client local time) WITH STATUS 20 IN 97.2222 SECONDS
stats: 2663 7 97.2222 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
1:
seed: 0
Nr of vars set: 1  (#equs: 0)
Nr of vars set: 178  (#equs: 254)
#decisions: 126380;  #end-nodes: 43548;
#proof improvement attempts: 0;  #restarts: 256
Current batch, end-nodes: 2394 / 3242 (144)
#axs: 6281, #non-axs: 9445
tight: meta-meta: start: 6, end: 9;  meta: start: 12, end (keep): 23
loose: meta-meta: start: 9, end: 14;  meta: start: 30, end (keep): 50
result: proof of false found (0)
seed: 0
Nr of vars set: 1255  (#equs: 669)
Time taken in seconds: 97
/oldhome/oroussel/solvers/vallstSAT2005PB.sh: line 190: grepres: command not found
/oldhome/oroussel/solvers/vallstSAT2005PB.sh: line 191: [: -eq: unary operator expected
times:
0m0.022s 0m0.007s
1m36.140s 0m0.997s
s UNSATISFIABLE
#### END SOLVER DATA ####
#### BEGIN WATCHER DATA ####
Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing VSIZE limit: 943718400 bytes
Enforcing Stack size limit: 67108864 bytes
Current StackSize limit: 67108864 bytes
Raw data (loadavg): 0.76 0.92 0.89 2/54 32331
Raw data (stat): 32331 (runsolver) R 32330 24821 24820 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 857433598 884736 94 4294967295 134512640 135332820 3221224432 3221219596 135092226 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0009 s]
Raw data (loadavg): 0.80 0.93 0.90 2/55 32334
Raw data (stat): 32331 (vallstSAT2005PB) S 32330 24821 24820 0 -1 0 321 232 0 0 1 0 0 0 20 0 1 0 857433598 2179072 242 4294967295 134512640 135087896 3221224512 3221223784 1074634510 0 65536 5 1132560122 3222414538 0 0 17 0 0 0
Raw data (statm): 532 242 485 147 0 385 0
vsize: 2128
[startup+20.0005 s]
Raw data (loadavg): 0.83 0.93 0.90 2/55 32334
Raw data (stat): 32331 (vallstSAT2005PB) S 32330 24821 24820 0 -1 0 321 232 0 0 1 0 0 0 20 0 1 0 857433598 2179072 242 4294967295 134512640 135087896 3221224512 3221223784 1074634510 0 65536 5 1132560122 3222414538 0 0 17 0 0 0
Raw data (statm): 532 242 485 147 0 385 0
vsize: 2128
[startup+30.0025 s]
Raw data (loadavg): 0.85 0.93 0.90 2/55 32334
Raw data (stat): 32331 (vallstSAT2005PB) S 32330 24821 24820 0 -1 0 321 232 0 0 1 0 0 0 20 0 1 0 857433598 2179072 242 4294967295 134512640 135087896 3221224512 3221223784 1074634510 0 65536 5 1132560122 3222414538 0 0 17 0 0 0
Raw data (statm): 532 242 485 147 0 385 0
vsize: 2128
[startup+40.0019 s]
Raw data (loadavg): 0.88 0.93 0.90 2/55 32334
Raw data (stat): 32331 (vallstSAT2005PB) S 32330 24821 24820 0 -1 0 321 232 0 0 1 0 0 0 20 0 1 0 857433598 2179072 242 4294967295 134512640 135087896 3221224512 3221223784 1074634510 0 65536 5 1132560122 3222414538 0 0 17 0 0 0
Raw data (statm): 532 242 485 147 0 385 0
vsize: 2128
[startup+50.0015 s]
Raw data (loadavg): 0.89 0.93 0.90 2/55 32334
Raw data (stat): 32331 (vallstSAT2005PB) S 32330 24821 24820 0 -1 0 321 232 0 0 1 0 0 0 20 0 1 0 857433598 2179072 242 4294967295 134512640 135087896 3221224512 3221223784 1074634510 0 65536 5 1132560122 3222414538 0 0 17 0 0 0
Raw data (statm): 532 242 485 147 0 385 0
vsize: 2128
[startup+60.0018 s]
Raw data (loadavg): 0.91 0.94 0.90 3/58 32378
Raw data (stat): 32331 (vallstSAT2005PB) S 32330 24821 24820 0 -1 0 321 232 0 0 1 0 0 0 20 0 1 0 857433598 2179072 242 4294967295 134512640 135087896 3221224512 3221223784 1074634510 0 65536 5 1132560122 3222414538 0 0 17 0 0 0
Raw data (statm): 532 242 485 147 0 385 0
vsize: 2128
[startup+70.0248 s]
Raw data (loadavg): 1.00 0.95 0.91 2/55 32387
Raw data (stat): 32331 (vallstSAT2005PB) S 32330 24821 24820 0 -1 0 321 232 0 0 1 0 0 0 20 0 1 0 857433598 2179072 242 4294967295 134512640 135087896 3221224512 3221223784 1074634510 0 65536 5 1132560122 3222414538 0 0 17 0 0 0
Raw data (statm): 532 242 485 147 0 385 0
vsize: 2128
[startup+80.0255 s]
Raw data (loadavg): 1.00 0.95 0.91 2/55 32387
Raw data (stat): 32331 (vallstSAT2005PB) S 32330 24821 24820 0 -1 0 321 232 0 0 1 0 0 0 20 0 1 0 857433598 2179072 242 4294967295 134512640 135087896 3221224512 3221223784 1074634510 0 65536 5 1132560122 3222414538 0 0 17 0 0 0
Raw data (statm): 532 242 485 147 0 385 0
vsize: 2128
[startup+90.0254 s]
Raw data (loadavg): 1.00 0.96 0.91 2/55 32387
Raw data (stat): 32331 (vallstSAT2005PB) S 32330 24821 24820 0 -1 0 321 232 0 0 1 0 0 0 20 0 1 0 857433598 2179072 242 4294967295 134512640 135087896 3221224512 3221223784 1074634510 0 65536 5 1132560122 3222414538 0 0 17 0 0 0
Raw data (statm): 532 242 485 147 0 385 0
vsize: 2128
[startup+97.5624 s]
Raw data (loadavg): 1.00 0.96 0.91 1/53 32393
Raw data (stat): 32331 (vallstSAT2005PB) S 32330 24821 24820 0 -1 0 321 232 0 0 1 0 0 0 20 0 1 0 857433598 2179072 242 4294967295 134512640 135087896 3221224512 3221223784 1074634510 0 65536 5 1132560122 3222414538 0 0 17 0 0 0
Raw data (statm): 532 242 485 147 0 385 0
vsize: 0

Child status: 20
Real time (s): 97.5621
CPU time (s): 97.2222
CPU user time (s): 96.1814
CPU system time (s): 1.04084
CPU usage (%): 99.6516
Max. virtual memory (Kb): 2128
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####