Trace number 2684607

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 0.1Wrong UNSAT 1.49677 1.49645

General information on the benchmark

Name/DEC-SMALLINT-LIN/oliveras/j30/
normalized-j3025_7-sat.opb
MD5SUMaa398ad728153b81883b8e1b2097cfdd
Bench CategoryDEC-SMALLINT-LIN (no optimisation, small integers, linear constraints)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark0
Best CPU time to get the best result obtained on this benchmark0.12498
Has Objective FunctionNO
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables5952
Total number of constraints19548
Number of constraints which are clauses19168
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints380
Minimum length of a constraint1
Maximum length of a constraint26
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 15
Number of bits of the biggest number in a constraint 4
Biggest sum of numbers in a constraint 161
Number of bits of the biggest sum of numbers8
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
0.19/0.22	c constraints 380/0 clauses 18972/0 units 119
0.19/0.22	c vars 5952
1.09/1.12	c 1.04784 81.9883 0 0
1.39/1.48	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-2684607-1278432559/watcher-2684607-1278432559 -o /tmp/evaluation-result-2684607-1278432559/solver-2684607-1278432559 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2684607-1278432559.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: 0.24 0.06 0.02 3/106 18535
/proc/meminfo: memFree=1483660/2059040 swapFree=4192956/4192956
[pid=18535] ppid=18533 vsize=2208 CPUtime=0
/proc/18535/stat : 18535 (pbct) R 18533 18535 18454 0 -1 4202496 257 0 0 0 0 0 0 0 18 0 1 0 11463551 2260992 180 1992294400 134512640 136485738 4287809168 18446744073709551615 135332318 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/18535/statm: 552 180 157 482 0 68 0

[startup+0.0405911 s]
/proc/loadavg: 0.24 0.06 0.02 3/106 18535
/proc/meminfo: memFree=1483660/2059040 swapFree=4192956/4192956
[pid=18535] ppid=18533 vsize=2340 CPUtime=0.03
/proc/18535/stat : 18535 (pbct) R 18533 18535 18454 0 -1 4202496 292 0 0 0 3 0 0 0 20 0 1 0 11463551 2396160 215 1992294400 134512640 136485738 4287809168 18446744073709551615 135177512 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/18535/statm: 585 215 157 482 0 101 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 2340

[startup+0.100596 s]
/proc/loadavg: 0.24 0.06 0.02 3/106 18535
/proc/meminfo: memFree=1483660/2059040 swapFree=4192956/4192956
[pid=18535] ppid=18533 vsize=2604 CPUtime=0.09
/proc/18535/stat : 18535 (pbct) R 18533 18535 18454 0 -1 4202496 348 0 0 0 9 0 0 0 20 0 1 0 11463551 2666496 271 1992294400 134512640 136485738 4287809168 18446744073709551615 135562677 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/18535/statm: 651 271 157 482 0 167 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2604

[startup+0.300618 s]
/proc/loadavg: 0.24 0.06 0.02 3/106 18535
/proc/meminfo: memFree=1483660/2059040 swapFree=4192956/4192956
[pid=18535] ppid=18533 vsize=15132 CPUtime=0.29
/proc/18535/stat : 18535 (pbct) R 18533 18535 18454 0 -1 4202496 3418 0 0 0 28 1 0 0 20 0 1 0 11463551 15495168 3341 1992294400 134512640 136485738 4287809168 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/18535/statm: 3783 3343 191 482 0 3299 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 15132

[startup+0.700662 s]
/proc/loadavg: 0.24 0.06 0.02 3/106 18535
/proc/meminfo: memFree=1483660/2059040 swapFree=4192956/4192956
[pid=18535] ppid=18533 vsize=43744 CPUtime=0.69
/proc/18535/stat : 18535 (pbct) R 18533 18535 18454 0 -1 4202496 11101 0 0 0 64 5 0 0 20 0 1 0 11463551 44793856 10378 1992294400 134512640 136485738 4287809168 18446744073709551615 134725667 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/18535/statm: 10936 10378 196 482 0 10452 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 43744

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

[startup+1.10871 s]
/proc/loadavg: 0.24 0.06 0.02 2/107 18536
/proc/meminfo: memFree=1408136/2059040 swapFree=4192956/4192956
[pid=18535] ppid=18533 vsize=82148 CPUtime=1.09
/proc/18535/stat : 18535 (pbct) R 18533 18535 18454 0 -1 4202496 21010 0 0 0 102 7 0 0 21 0 1 0 11463551 84119552 19346 1992294400 134512640 136485738 4287809168 18446744073709551615 135868599 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/18535/statm: 20537 19346 208 482 0 20053 0
Current children cumulated CPU time (s) 1.09
Current children cumulated vsize (KiB) 82148

[startup+1.30073 s]
/proc/loadavg: 0.24 0.06 0.02 2/107 18536
/proc/meminfo: memFree=1408136/2059040 swapFree=4192956/4192956
[pid=18535] ppid=18533 vsize=78356 CPUtime=1.29
/proc/18535/stat : 18535 (pbct) R 18533 18535 18454 0 -1 4202496 21510 0 0 0 122 7 0 0 22 0 1 0 11463551 80236544 18811 1992294400 134512640 136485738 4287809168 18446744073709551615 135839892 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/18535/statm: 19589 18811 242 482 0 19105 0
Current children cumulated CPU time (s) 1.29
Current children cumulated vsize (KiB) 78356

[startup+1.40074 s]
/proc/loadavg: 0.24 0.06 0.02 2/107 18536
/proc/meminfo: memFree=1408136/2059040 swapFree=4192956/4192956
[pid=18535] ppid=18533 vsize=78356 CPUtime=1.39
/proc/18535/stat : 18535 (pbct) R 18533 18535 18454 0 -1 4202496 21510 0 0 0 132 7 0 0 22 0 1 0 11463551 80236544 18811 1992294400 134512640 136485738 4287809168 18446744073709551615 135839991 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/18535/statm: 19589 18811 242 482 0 19105 0
Current children cumulated CPU time (s) 1.39
Current children cumulated vsize (KiB) 78356

Child status: 0
Real time (s): 1.49645
CPU time (s): 1.49677
CPU user time (s): 1.40879
CPU system time (s): 0.087986
CPU usage (%): 100.022
Max. virtual memory (cumulated for all children) (KiB): 82148

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.40878
system time used= 0.087986
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 21511
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= 3

runsolver used 0.006998 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node038 at 2010-07-06 18:09:19
IDJOB=2684607
IDBENCH=73181
IDSOLVER=1170
FILE ID=node038/2684607-1278432559
PBS_JOBID= 11233444
Free space on /tmp= 62540 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB10/normalized-PB10/DEC-SMALLINT-LIN/oliveras/j30/normalized-j3025_7-sat.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2684607-1278432559/watcher-2684607-1278432559 -o /tmp/evaluation-result-2684607-1278432559/solver-2684607-1278432559 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2684607-1278432559.opb

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

MD5SUM BENCH= aa398ad728153b81883b8e1b2097cfdd
RANDOM SEED=702736878

node038.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		: 3000.215
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	: 6000.43
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		: 3000.215
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	: 5599.45
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1484188 kB
Buffers:        102588 kB
Cached:         340732 kB
SwapCached:          0 kB
Active:         171984 kB
Inactive:       331236 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1484188 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            2656 kB
Writeback:           0 kB
AnonPages:       59912 kB
Mapped:          14408 kB
Slab:            49748 kB
PageTables:       4172 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   179356 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= 62536 MiB
End job on node038 at 2010-07-06 18:09:21