Trace number 2668438

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 0.1? (MO) 25.2342 27.2538

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/web/uclid_pb_benchmarks/
normalized-cache-ibm-q-unbounded.Ih1arity.ucl.opb
MD5SUM63ec6637b1b124456335cf99c2a6c3dd
Bench CategoryDEC-SMALLINT (no optimisation, small integers)
Best result obtained on this benchmark
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables201731
Total number of constraints592525
Number of constraints which are clauses579429
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints13096
Minimum length of a constraint1
Maximum length of a constraint15
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 131
Number of bits of the biggest number in a constraint 8
Biggest sum of numbers in a constraint 513
Number of bits of the biggest sum of numbers10
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
7.19/7.22	c constraints 13096/0 clauses 579421/0 units 5
7.19/7.22	c vars 201731

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-2668438-1276435530/watcher-2668438-1276435530 -o /tmp/evaluation-result-2668438-1276435530/solver-2668438-1276435530 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668438-1276435530.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 1.02 1.00 3/106 26845
/proc/meminfo: memFree=1818832/2059040 swapFree=4135656/4192956
[pid=26845] ppid=26843 vsize=2208 CPUtime=0
/proc/26845/stat : 26845 (pbct) R 26843 26845 25934 0 -1 4202496 256 0 0 0 0 0 0 0 19 0 1 0 19157065 2260992 178 1992294400 134512640 136485738 4293912496 18446744073709551615 134533947 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26845/statm: 552 178 156 482 0 68 0

[startup+0.0738571 s]
/proc/loadavg: 1.00 1.02 1.00 3/106 26845
/proc/meminfo: memFree=1818832/2059040 swapFree=4135656/4192956
[pid=26845] ppid=26843 vsize=2340 CPUtime=0.07
/proc/26845/stat : 26845 (pbct) R 26843 26845 25934 0 -1 4202496 309 0 0 0 7 0 0 0 22 0 1 0 19157065 2396160 231 1992294400 134512640 136485738 4293912496 18446744073709551615 135173309 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26845/statm: 585 231 156 482 0 101 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 2340

[startup+0.100859 s]
/proc/loadavg: 1.00 1.02 1.00 3/106 26845
/proc/meminfo: memFree=1818832/2059040 swapFree=4135656/4192956
[pid=26845] ppid=26843 vsize=2472 CPUtime=0.09
/proc/26845/stat : 26845 (pbct) R 26843 26845 25934 0 -1 4202496 332 0 0 0 9 0 0 0 22 0 1 0 19157065 2531328 254 1992294400 134512640 136485738 4293912496 18446744073709551615 135411185 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26845/statm: 618 254 156 482 0 134 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2472

[startup+0.300879 s]
/proc/loadavg: 1.00 1.02 1.00 3/106 26845
/proc/meminfo: memFree=1818832/2059040 swapFree=4135656/4192956
[pid=26845] ppid=26843 vsize=3132 CPUtime=0.29
/proc/26845/stat : 26845 (pbct) R 26843 26845 25934 0 -1 4202496 489 0 0 0 29 0 0 0 22 0 1 0 19157065 3207168 411 1992294400 134512640 136485738 4293912496 18446744073709551615 135411219 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26845/statm: 783 411 156 482 0 299 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3132

[startup+0.700925 s]
/proc/loadavg: 1.00 1.02 1.00 3/106 26845
/proc/meminfo: memFree=1818832/2059040 swapFree=4135656/4192956
[pid=26845] ppid=26843 vsize=4316 CPUtime=0.69
/proc/26845/stat : 26845 (pbct) R 26843 26845 25934 0 -1 4202496 837 0 0 0 69 0 0 0 23 0 1 0 19157065 4419584 726 1992294400 134512640 136485738 4293912496 18446744073709551615 135411152 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26845/statm: 1079 726 156 482 0 595 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4316

[startup+1.501 s]
/proc/loadavg: 1.00 1.02 1.00 2/107 26846
/proc/meminfo: memFree=1815848/2059040 swapFree=4135656/4192956
[pid=26845] ppid=26843 vsize=7460 CPUtime=1.49
/proc/26845/stat : 26845 (pbct) R 26843 26845 25934 0 -1 4202496 1668 0 0 0 149 0 0 0 25 0 1 0 19157065 7639040 1363 1992294400 134512640 136485738 4293912496 18446744073709551615 135562305 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26845/statm: 1865 1363 156 482 0 1381 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7460

[startup+3.10117 s]
/proc/loadavg: 1.00 1.02 1.00 2/107 26846
/proc/meminfo: memFree=1812376/2059040 swapFree=4135656/4192956
[pid=26845] ppid=26843 vsize=12972 CPUtime=3.09
/proc/26845/stat : 26845 (pbct) R 26843 26845 25934 0 -1 4202496 3194 0 0 0 308 1 0 0 25 0 1 0 19157065 13283328 2632 1992294400 134512640 136485738 4293912496 18446744073709551615 135856892 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26845/statm: 3243 2632 156 482 0 2759 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 12972

[startup+6.30149 s]
/proc/loadavg: 1.00 1.02 1.00 2/107 26846
/proc/meminfo: memFree=1801960/2059040 swapFree=4135656/4192956
[pid=26845] ppid=26843 vsize=23996 CPUtime=6.29
/proc/26845/stat : 26845 (pbct) R 26843 26845 25934 0 -1 4202496 6239 0 0 0 626 3 0 0 25 0 1 0 19157065 24571904 5164 1992294400 134512640 136485738 4293912496 18446744073709551615 134532797 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26845/statm: 5999 5164 156 482 0 5515 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 23996

[startup+12.7011 s]
/proc/loadavg: 1.00 1.02 1.00 2/107 26846
/proc/meminfo: memFree=1314144/2059040 swapFree=4135656/4192956
[pid=26845] ppid=26843 vsize=601356 CPUtime=12.69
/proc/26845/stat : 26845 (pbct) R 26843 26845 25934 0 -1 4202496 159639 0 0 0 1199 70 0 0 25 0 1 0 19157065 615788544 144843 1992294400 134512640 136485738 4293912496 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26845/statm: 150339 144843 191 482 0 149855 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 601356



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+24.9004 s]
/proc/loadavg: 1.00 1.02 1.00 3/107 26846
/proc/meminfo: memFree=9044/2059040 swapFree=4135652/4192956
[pid=26845] ppid=26843 vsize=1851484 CPUtime=25.05
/proc/26845/stat : 26845 (pbct) R 26843 26845 25934 0 -1 4202496 491245 0 0 0 2298 207 0 0 25 0 1 0 19157065 1895919616 460385 1992294400 134512640 136485738 4293912496 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 0 0 0 0
/proc/26845/statm: 462871 460390 197 482 0 462387 0
Current children cumulated CPU time (s) 25.05
Current children cumulated vsize (KiB) 1851484

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

[startup+25.5003 s]
/proc/loadavg: 1.00 1.02 1.00 1/108 26847
/proc/meminfo: memFree=10648/2059040 swapFree=4135652/4192956
[pid=26845] ppid=26843 vsize=1851616 CPUtime=25.05
/proc/26845/stat : 26845 (pbct) S 26843 26845 25934 0 -1 4194304 491274 0 0 0 2298 207 0 0 25 0 1 0 19157065 1896054784 460414 1992294400 134512640 136485738 4293912496 18446744073709551615 135319262 0 16384 4096 16387 18446604435971336960 0 0 17 0 0 0 0
/proc/26845/statm: 462904 460414 197 482 0 462420 0
Current children cumulated CPU time (s) 25.05
Current children cumulated vsize (KiB) 1851616

Sending SIGKILL to process tree (bottom up)

Sending SIGKILL to -26845

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

[startup+26.3003 s]
/proc/loadavg: 1.00 1.02 1.00 1/108 26847
/proc/meminfo: memFree=10648/2059040 swapFree=4135652/4192956
[pid=26845] ppid=26843 vsize=1851616 CPUtime=25.05
/proc/26845/stat : 26845 (pbct) S 26843 26845 25934 0 -1 4194304 491274 0 0 0 2298 207 0 0 25 0 1 0 19157065 1896054784 460414 1992294400 134512640 136485738 4293912496 18446744073709551615 135319262 0 16384 4096 16387 18446604435971336960 0 0 17 0 0 0 0
/proc/26845/statm: 462904 460414 197 482 0 462420 0
Current children cumulated CPU time (s) 25.05
Current children cumulated vsize (KiB) 1851616

[startup+26.7003 s]
/proc/loadavg: 1.00 1.02 1.00 1/108 26847
/proc/meminfo: memFree=10648/2059040 swapFree=4135652/4192956
[pid=26845] ppid=26843 vsize=1851616 CPUtime=25.05
/proc/26845/stat : 26845 (pbct) S 26843 26845 25934 0 -1 4194304 491274 0 0 0 2298 207 0 0 25 0 1 0 19157065 1896054784 460414 1992294400 134512640 136485738 4293912496 18446744073709551615 135319262 0 16384 4096 16387 18446604435971336960 0 0 17 0 0 0 0
/proc/26845/statm: 462904 460414 197 482 0 462420 0
Current children cumulated CPU time (s) 25.05
Current children cumulated vsize (KiB) 1851616

[startup+27.1003 s]
/proc/loadavg: 1.00 1.02 1.00 1/108 26847
/proc/meminfo: memFree=10648/2059040 swapFree=4135652/4192956
[pid=26845] ppid=26843 vsize=0 CPUtime=25.07
/proc/26845/stat : 26845 (pbct) R 26843 26845 25934 0 -1 4195332 491274 0 0 0 2298 209 0 0 18 0 1 0 19157065 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 0 0 0 0
/proc/26845/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 25.07
Current children cumulated vsize (KiB) 0

[startup+27.2003 s]
/proc/loadavg: 1.00 1.02 1.00 1/108 26847
/proc/meminfo: memFree=10648/2059040 swapFree=4135652/4192956
[pid=26845] ppid=26843 vsize=0 CPUtime=25.17
/proc/26845/stat : 26845 (pbct) R 26843 26845 25934 0 -1 4195332 491274 0 0 0 2298 219 0 0 18 0 1 0 19157065 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 0 0 0 0
/proc/26845/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 25.17
Current children cumulated vsize (KiB) 0

Child ended because it received signal 9 (SIGKILL)
Real time (s): 27.2538
CPU time (s): 25.2342
CPU user time (s): 22.9865
CPU system time (s): 2.24766
CPU usage (%): 92.5895
Max. virtual memory (cumulated for all children) (KiB): 1851616

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 22.9865
system time used= 2.24766
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 491274
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= 2
involuntary context switches= 48

runsolver used 0.044993 second user time and 0.148977 second system time

The end

Launcher Data 

Begin job on node002 at 2010-06-13 15:25:31
IDJOB=2668438
IDBENCH=1487
IDSOLVER=1170
FILE ID=node002/2668438-1276435530
PBS_JOBID= 11173318
Free space on /tmp= 62380 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/web/uclid_pb_benchmarks/normalized-cache-ibm-q-unbounded.Ih1arity.ucl.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668438-1276435530/watcher-2668438-1276435530 -o /tmp/evaluation-result-2668438-1276435530/solver-2668438-1276435530 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668438-1276435530.opb

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

MD5SUM BENCH= 63ec6637b1b124456335cf99c2a6c3dd
RANDOM SEED=1416892216

node002.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		: 3000.242
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	: 6000.48
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		: 3000.242
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	: 5599.36
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1819352 kB
Buffers:         22652 kB
Cached:         139576 kB
SwapCached:       9940 kB
Active:          88296 kB
Inactive:        86016 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1819352 kB
SwapTotal:     4192956 kB
SwapFree:      4135656 kB
Dirty:           21668 kB
Writeback:           0 kB
AnonPages:       10852 kB
Mapped:           9224 kB
Slab:            43720 kB
PageTables:       4076 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   179836 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= 62376 MiB
End job on node002 at 2010-06-13 15:25:58