Trace number 2669136

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 into four (or five) parts:
  1. 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 ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock time.

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. 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.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. 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 X seconds (see the parameters in the trace). 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 X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    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.
  5. 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 provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
PB/CT 0.1UNSAT 1.92771 1.92835

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/web/
uclid_pb_benchmarks/normalized-ooo.rf8.ucl.opb
MD5SUMa985b0d4e6d576e8ad3098d78036fdc8
Bench CategoryDEC-SMALLINT (no optimisation, small integers)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark0.757884
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables6832
Total number of constraints19477
Number of constraints which are clauses18953
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints524
Minimum length of a constraint1
Maximum length of a constraint11
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 33
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 126
Number of bits of the biggest sum of numbers7
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

0.00/0.00	c PB/CT 0.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
0.19/0.23	c constraints 524/0 clauses 18945/0 units 5
0.19/0.23	c vars 6832
1.59/1.60	c 1.52077 76.1875 451 2945
1.89/1.92	s UNSATISFIABLE

Verifier Data 

ERROR: no interpretation found !

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2669136-1276435552/watcher-2669136-1276435552 -o /tmp/evaluation-result-2669136-1276435552/solver-2669136-1276435552 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2669136-1276435552.opb 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2000 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 22803
/proc/meminfo: memFree=1847688/2059040 swapFree=4140260/4192956
[pid=22803] ppid=22801 vsize=2208 CPUtime=0
/proc/22803/stat : 22803 (pbct) R 22801 22803 21900 0 -1 4202496 255 0 0 0 0 0 0 0 17 0 1 0 19156737 2260992 178 1992294400 134512640 136485738 4290405168 18446744073709551615 135173322 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22803/statm: 552 178 156 482 0 68 0

[startup+0.083464 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 22803
/proc/meminfo: memFree=1847688/2059040 swapFree=4140260/4192956
[pid=22803] ppid=22801 vsize=2472 CPUtime=0.08
/proc/22803/stat : 22803 (pbct) R 22801 22803 21900 0 -1 4202496 314 0 0 0 8 0 0 0 17 0 1 0 19156737 2531328 237 1992294400 134512640 136485738 4290405168 18446744073709551615 135416496 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22803/statm: 618 237 156 482 0 134 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 2472

[startup+0.100465 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 22803
/proc/meminfo: memFree=1847688/2059040 swapFree=4140260/4192956
[pid=22803] ppid=22801 vsize=2472 CPUtime=0.09
/proc/22803/stat : 22803 (pbct) R 22801 22803 21900 0 -1 4202496 330 0 0 0 9 0 0 0 17 0 1 0 19156737 2531328 253 1992294400 134512640 136485738 4290405168 18446744073709551615 135681205 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22803/statm: 618 253 156 482 0 134 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2472

[startup+0.300492 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 22803
/proc/meminfo: memFree=1847688/2059040 swapFree=4140260/4192956
[pid=22803] ppid=22801 vsize=11672 CPUtime=0.29
/proc/22803/stat : 22803 (pbct) R 22801 22803 21900 0 -1 4202496 2544 0 0 0 28 1 0 0 17 0 1 0 19156737 11952128 2467 1992294400 134512640 136485738 4290405168 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22803/statm: 2918 2468 191 482 0 2434 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 11672

[startup+0.700544 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 22803
/proc/meminfo: memFree=1847688/2059040 swapFree=4140260/4192956
[pid=22803] ppid=22801 vsize=44600 CPUtime=0.69
/proc/22803/stat : 22803 (pbct) R 22801 22803 21900 0 -1 4202496 11363 0 0 0 64 5 0 0 17 0 1 0 19156737 45670400 10679 1992294400 134512640 136485738 4290405168 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22803/statm: 11150 10679 196 482 0 10666 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 44600

[startup+1.50065 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 22804
/proc/meminfo: memFree=1774892/2059040 swapFree=4140260/4192956
[pid=22803] ppid=22801 vsize=78012 CPUtime=1.49
/proc/22803/stat : 22803 (pbct) R 22801 22803 21900 0 -1 4202496 19897 0 0 0 141 8 0 0 18 0 1 0 19156737 79884288 18417 1992294400 134512640 136485738 4290405168 18446744073709551615 134880564 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22803/statm: 19503 18417 223 482 0 19019 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 78012

Solver just ended. Dumping a history of the last processes samples

[startup+1.9007 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 22804
/proc/meminfo: memFree=1774892/2059040 swapFree=4140260/4192956
[pid=22803] ppid=22801 vsize=72940 CPUtime=1.89
/proc/22803/stat : 22803 (pbct) R 22801 22803 21900 0 -1 4202496 19925 0 0 0 181 8 0 0 19 0 1 0 19156737 74690560 17561 1992294400 134512640 136485738 4290405168 18446744073709551615 135856849 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22803/statm: 18235 17561 245 482 0 17751 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 72940

Child status: 0
Real time (s): 1.92835
CPU time (s): 1.92771
CPU user time (s): 1.83172
CPU system time (s): 0.095985
CPU usage (%): 99.9668
Max. virtual memory (cumulated for all children) (KiB): 78012

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.83172
system time used= 0.095985
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 19926
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 1
involuntary context switches= 4

runsolver used 0.003999 second user time and 0.014997 second system time

The end

Launcher Data 

Begin job on node013 at 2010-06-13 15:25:52
IDJOB=2669136
IDBENCH=1492
IDSOLVER=1170
FILE ID=node013/2669136-1276435552
PBS_JOBID= 11173307
Free space on /tmp= 62464 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/web/uclid_pb_benchmarks/normalized-ooo.rf8.ucl.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2669136-1276435552/watcher-2669136-1276435552 -o /tmp/evaluation-result-2669136-1276435552/solver-2669136-1276435552 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2669136-1276435552.opb

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= a985b0d4e6d576e8ad3098d78036fdc8
RANDOM SEED=1868312525

node013.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.253
cache size	: 2048 KB
physical id	: 0
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 6000.50
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.253
cache size	: 2048 KB
physical id	: 3
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5599.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1848216 kB
Buffers:         22224 kB
Cached:         111172 kB
SwapCached:       5696 kB
Active:          90852 kB
Inactive:        55376 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1848216 kB
SwapTotal:     4192956 kB
SwapFree:      4140260 kB
Dirty:            2500 kB
Writeback:           4 kB
AnonPages:       11472 kB
Mapped:          12856 kB
Slab:            42932 kB
PageTables:       4084 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180368 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264948 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62460 MiB
End job on node013 at 2010-06-13 15:25:54