Execution Chart

We display below the execution chart for this examination (boot time has been removed).

Trace from the execution

Formatting '/data/fkordon/mcc2022-input.r180-tall-165277028000503.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2022-input.qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
............................................................................................................................................................................
=====================================================================
Generated by BenchKit 2-4028
Executing tool gold2021
Input is PolyORBNT-COL-S10J80, examination is StableMarking
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r180-tall-165277028000503
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 356K
-rw-r--r-- 1 mcc users 9.6K Apr 30 04:21 CTLCardinality.txt
-rw-r--r-- 1 mcc users 93K Apr 30 04:21 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.5K Apr 30 04:02 CTLFireability.txt
-rw-r--r-- 1 mcc users 55K Apr 30 04:02 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 10 09:34 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 4.1K May 9 08:30 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K May 9 08:30 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.5K May 9 08:30 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K May 9 08:30 LTLFireability.xml
-rw-r--r-- 1 mcc users 1.8K May 9 08:30 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K May 9 08:30 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 May 10 09:34 equiv_pt
-rw-r--r-- 1 mcc users 7 May 10 09:34 instance
-rw-r--r-- 1 mcc users 5 May 10 09:34 iscolored
-rw-r--r-- 1 mcc users 95K May 10 09:34 model.pnml

--------------------
content from stdout:

=== Data for post analysis generated by BenchKit (invocation template)

The expected result is a vector of booleans
BOOL_VECTOR

FORMULA_NAME StableMarking

=== Now, execution of the tool begins

BK_START 1652835272843

Running Version 0
[2022-05-18 00:54:34] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, StableMarking, -spotpath, /home/mcc/BenchKit/bin//..//ltlfilt, -z3path, /home/mcc/BenchKit/bin//..//z3/bin/z3, -yices2path, /home/mcc/BenchKit/bin//..//yices/bin/yices, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 1800]
[2022-05-18 00:54:34] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2022-05-18 00:54:34] [INFO ] Detected file is not PT type :http://www.pnml.org/version-2009/grammar/symmetricnet
log4j:WARN No appenders could be found for logger (org.apache.axiom.locator.DefaultOMMetaFactoryLocator).
log4j:WARN Please initialize the log4j system properly.
[2022-05-18 00:54:34] [WARNING] Using fallBack plugin, rng conformance not checked
[2022-05-18 00:54:34] [INFO ] Load time of PNML (colored model parsed with PNMLFW) : 628 ms
[2022-05-18 00:54:34] [INFO ] ms1 symmetric to ms4 in transition trans_489
[2022-05-18 00:54:34] [INFO ] ms4 symmetric to ms2 in transition trans_489
[2022-05-18 00:54:34] [INFO ] ms2 symmetric to ms3 in transition trans_489
[2022-05-18 00:54:34] [INFO ] ms1 symmetric to ms2 in transition trans_488
[2022-05-18 00:54:34] [INFO ] ms2 symmetric to ms3 in transition trans_488
[2022-05-18 00:54:34] [INFO ] ms1 symmetric to ms2 in transition trans_487
[2022-05-18 00:54:34] [INFO ] Imported 48 HL places and 38 HL transitions for a total of 1694 PT places and 13742.0 transition bindings in 26 ms.
[2022-05-18 00:54:34] [INFO ] Built PT skeleton of HLPN with 48 places and 38 transitions in 4 ms.
[2022-05-18 00:54:34] [INFO ] Skeletonized HLPN properties in 0 ms.
Successfully produced net in file /tmp/petri1000_3153111371538691309.dot
Structural test allowed to assert that 2 places are NOT stable. Took 2 ms.
Incomplete random walk after 10000 steps, including 571 resets, run finished after 30 ms. (steps per millisecond=333 ) properties (out of 46) seen :12
Incomplete Best-First random walk after 1000 steps, including 16 resets, run finished after 4 ms. (steps per millisecond=250 ) properties (out of 34) seen :32
Incomplete Best-First random walk after 1000 steps, including 23 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 2) seen :0
Incomplete Best-First random walk after 1001 steps, including 25 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 2) seen :0
Running SMT prover for 2 properties.
// Phase 1: matrix 38 rows 48 cols
[2022-05-18 00:54:35] [INFO ] Computed 13 place invariants in 6 ms
[2022-05-18 00:54:35] [INFO ] [Real]Absence check using 6 positive place invariants in 4 ms returned sat
[2022-05-18 00:54:35] [INFO ] [Real]Absence check using 6 positive and 7 generalized place invariants in 3 ms returned sat
[2022-05-18 00:54:35] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2022-05-18 00:54:35] [INFO ] [Real]Absence check using state equation in 34 ms returned sat
[2022-05-18 00:54:35] [INFO ] Solution in real domain found non-integer solution.
[2022-05-18 00:54:35] [INFO ] [Nat]Absence check using 6 positive place invariants in 2 ms returned sat
[2022-05-18 00:54:35] [INFO ] [Nat]Absence check using 6 positive and 7 generalized place invariants in 2 ms returned sat
[2022-05-18 00:54:35] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2022-05-18 00:54:35] [INFO ] [Nat]Absence check using state equation in 45 ms returned sat
[2022-05-18 00:54:35] [INFO ] State equation strengthened by 1 read => feed constraints.
[2022-05-18 00:54:35] [INFO ] [Nat]Added 1 Read/Feed constraints in 1 ms returned sat
[2022-05-18 00:54:35] [INFO ] Deduced a trap composed of 14 places in 63 ms of which 3 ms to minimize.
[2022-05-18 00:54:35] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 84 ms
[2022-05-18 00:54:35] [INFO ] Computed and/alt/rep : 36/66/36 causal constraints (skipped 0 transitions) in 7 ms.
[2022-05-18 00:54:35] [INFO ] Added : 19 causal constraints over 4 iterations in 52 ms. Result :sat
Attempting to minimize the solution found.
Minimization took 2 ms.
[2022-05-18 00:54:35] [INFO ] [Real]Absence check using 6 positive place invariants in 2 ms returned sat
[2022-05-18 00:54:35] [INFO ] [Real]Absence check using 6 positive and 7 generalized place invariants in 2 ms returned sat
[2022-05-18 00:54:35] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2022-05-18 00:54:35] [INFO ] [Real]Absence check using state equation in 12 ms returned sat
[2022-05-18 00:54:35] [INFO ] Solution in real domain found non-integer solution.
[2022-05-18 00:54:35] [INFO ] [Nat]Absence check using 6 positive place invariants in 1 ms returned sat
[2022-05-18 00:54:35] [INFO ] [Nat]Absence check using 6 positive and 7 generalized place invariants in 1 ms returned sat
[2022-05-18 00:54:35] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2022-05-18 00:54:35] [INFO ] [Nat]Absence check using state equation in 49 ms returned sat
[2022-05-18 00:54:35] [INFO ] [Nat]Added 1 Read/Feed constraints in 0 ms returned sat
[2022-05-18 00:54:35] [INFO ] Deduced a trap composed of 14 places in 22 ms of which 1 ms to minimize.
[2022-05-18 00:54:35] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 30 ms
[2022-05-18 00:54:35] [INFO ] Computed and/alt/rep : 36/66/36 causal constraints (skipped 0 transitions) in 3 ms.
[2022-05-18 00:54:35] [INFO ] Added : 18 causal constraints over 4 iterations in 31 ms. Result :sat
Attempting to minimize the solution found.
Minimization took 1 ms.
Finished Parikh walk after 19 steps, including 1 resets, run visited all 2 properties in 2 ms. (steps per millisecond=9 )
Able to resolve query StableMarking after proving 47 properties.
[2022-05-18 00:54:35] [INFO ] Unfolded HLPN to a Petri net with 1694 places and 3470 transitions in 38 ms.
[2022-05-18 00:54:35] [INFO ] Unfolded HLPN properties in 1 ms.
[2022-05-18 00:54:35] [INFO ] Unfolded HLPN to a Petri net with 1694 places and 3470 transitions in 23 ms.
[2022-05-18 00:54:35] [INFO ] Unfolded HLPN properties in 0 ms.
Successfully produced net in file /tmp/petri1001_4914284059116134287.dot
Deduced a syphon composed of 80 places in 15 ms
Reduce places removed 80 places and 80 transitions.
Incomplete random walk after 10000 steps, including 559 resets, run finished after 466 ms. (steps per millisecond=21 ) properties (out of 48) seen :13
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 11 ms. (steps per millisecond=91 ) properties (out of 35) seen :0
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 12 ms. (steps per millisecond=83 ) properties (out of 35) seen :0
Incomplete Best-First random walk after 1000 steps, including 10 resets, run finished after 10 ms. (steps per millisecond=100 ) properties (out of 35) seen :0
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 11 ms. (steps per millisecond=91 ) properties (out of 35) seen :0
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 12 ms. (steps per millisecond=83 ) properties (out of 35) seen :0
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 12 ms. (steps per millisecond=83 ) properties (out of 35) seen :0
Incomplete Best-First random walk after 1000 steps, including 9 resets, run finished after 11 ms. (steps per millisecond=90 ) properties (out of 35) seen :0
Incomplete Best-First random walk after 1000 steps, including 9 resets, run finished after 10 ms. (steps per millisecond=100 ) properties (out of 35) seen :0
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 11 ms. (steps per millisecond=91 ) properties (out of 35) seen :0
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 11 ms. (steps per millisecond=91 ) properties (out of 35) seen :0
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 14 ms. (steps per millisecond=71 ) properties (out of 35) seen :0
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 11 ms. (steps per millisecond=91 ) properties (out of 35) seen :0
Incomplete Best-First random walk after 1000 steps, including 10 resets, run finished after 11 ms. (steps per millisecond=90 ) properties (out of 35) seen :0
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 10 ms. (steps per millisecond=100 ) properties (out of 35) seen :0
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 11 ms. (steps per millisecond=91 ) properties (out of 35) seen :0
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 11 ms. (steps per millisecond=91 ) properties (out of 35) seen :0
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 11 ms. (steps per millisecond=91 ) properties (out of 35) seen :0
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 11 ms. (steps per millisecond=91 ) properties (out of 35) seen :0
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 11 ms. (steps per millisecond=91 ) properties (out of 35) seen :0
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 10 ms. (steps per millisecond=100 ) properties (out of 35) seen :0
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 11 ms. (steps per millisecond=91 ) properties (out of 35) seen :0
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 12 ms. (steps per millisecond=83 ) properties (out of 35) seen :0
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 10 ms. (steps per millisecond=100 ) properties (out of 35) seen :0
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 22 ms. (steps per millisecond=45 ) properties (out of 35) seen :0
Incomplete Best-First random walk after 1000 steps, including 10 resets, run finished after 11 ms. (steps per millisecond=90 ) properties (out of 35) seen :0
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 10 ms. (steps per millisecond=100 ) properties (out of 35) seen :0
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 11 ms. (steps per millisecond=91 ) properties (out of 35) seen :0
Incomplete Best-First random walk after 1000 steps, including 10 resets, run finished after 10 ms. (steps per millisecond=100 ) properties (out of 35) seen :0
Incomplete Best-First random walk after 1000 steps, including 10 resets, run finished after 10 ms. (steps per millisecond=100 ) properties (out of 35) seen :0
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 12 ms. (steps per millisecond=83 ) properties (out of 35) seen :0
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 10 ms. (steps per millisecond=100 ) properties (out of 35) seen :0
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 12 ms. (steps per millisecond=83 ) properties (out of 35) seen :0
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 11 ms. (steps per millisecond=91 ) properties (out of 35) seen :0
Incomplete Best-First random walk after 1000 steps, including 10 resets, run finished after 22 ms. (steps per millisecond=45 ) properties (out of 35) seen :0
Incomplete Best-First random walk after 1000 steps, including 10 resets, run finished after 14 ms. (steps per millisecond=71 ) properties (out of 35) seen :0
Running SMT prover for 35 properties.
[2022-05-18 00:54:36] [INFO ] Flow matrix only has 3381 transitions (discarded 9 similar events)
// Phase 1: matrix 3381 rows 1614 cols
[2022-05-18 00:54:37] [INFO ] Computed 192 place invariants in 466 ms
[2022-05-18 00:54:38] [INFO ] [Real]Absence check using 185 positive place invariants in 70 ms returned sat
[2022-05-18 00:54:38] [INFO ] [Real]Absence check using 185 positive and 7 generalized place invariants in 45 ms returned sat
[2022-05-18 00:54:38] [INFO ] SMT Verify possible in real domain returnedunsat :0 sat :0 real:35
[2022-05-18 00:54:39] [INFO ] [Nat]Absence check using 185 positive place invariants in 57 ms returned sat
[2022-05-18 00:54:39] [INFO ] [Nat]Absence check using 185 positive and 7 generalized place invariants in 43 ms returned sat
[2022-05-18 00:54:40] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2022-05-18 00:55:03] [INFO ] [Nat]Absence check using state equation in 22791 ms returned unsat :0 sat :35
[2022-05-18 00:55:03] [INFO ] State equation strengthened by 1 read => feed constraints.
[2022-05-18 00:55:03] [WARNING] SMT solver failed with error :SMT solver raised an error when submitting script.... while checking expressions.
Fused 35 Parikh solutions to 20 different solutions.
Incomplete Parikh walk after 270 steps, including 24 resets, run finished after 12 ms. (steps per millisecond=22 ) properties (out of 35) seen :0 could not realise parikh vector
Incomplete Parikh walk after 410 steps, including 136 resets, run finished after 16 ms. (steps per millisecond=25 ) properties (out of 35) seen :0 could not realise parikh vector
Incomplete Parikh walk after 210 steps, including 105 resets, run finished after 9 ms. (steps per millisecond=23 ) properties (out of 35) seen :0 could not realise parikh vector
Incomplete Parikh walk after 230 steps, including 115 resets, run finished after 9 ms. (steps per millisecond=25 ) properties (out of 35) seen :0 could not realise parikh vector
Incomplete Parikh walk after 220 steps, including 110 resets, run finished after 8 ms. (steps per millisecond=27 ) properties (out of 35) seen :0 could not realise parikh vector
Incomplete Parikh walk after 920 steps, including 230 resets, run finished after 37 ms. (steps per millisecond=24 ) properties (out of 35) seen :0 could not realise parikh vector
Incomplete Parikh walk after 420 steps, including 140 resets, run finished after 16 ms. (steps per millisecond=26 ) properties (out of 35) seen :0 could not realise parikh vector
Incomplete Parikh walk after 220 steps, including 110 resets, run finished after 9 ms. (steps per millisecond=24 ) properties (out of 35) seen :0 could not realise parikh vector
Incomplete Parikh walk after 280 steps, including 140 resets, run finished after 10 ms. (steps per millisecond=28 ) properties (out of 35) seen :0 could not realise parikh vector
Incomplete Parikh walk after 530 steps, including 132 resets, run finished after 20 ms. (steps per millisecond=26 ) properties (out of 35) seen :0 could not realise parikh vector
Incomplete Parikh walk after 290 steps, including 96 resets, run finished after 12 ms. (steps per millisecond=24 ) properties (out of 35) seen :0 could not realise parikh vector
Incomplete Parikh walk after 530 steps, including 132 resets, run finished after 20 ms. (steps per millisecond=26 ) properties (out of 35) seen :0 could not realise parikh vector
Incomplete Parikh walk after 530 steps, including 132 resets, run finished after 20 ms. (steps per millisecond=26 ) properties (out of 35) seen :0 could not realise parikh vector
Incomplete Parikh walk after 420 steps, including 140 resets, run finished after 17 ms. (steps per millisecond=24 ) properties (out of 35) seen :0 could not realise parikh vector
Incomplete Parikh walk after 350 steps, including 116 resets, run finished after 13 ms. (steps per millisecond=26 ) properties (out of 35) seen :0 could not realise parikh vector
Incomplete Parikh walk after 490 steps, including 163 resets, run finished after 18 ms. (steps per millisecond=27 ) properties (out of 35) seen :0 could not realise parikh vector
Incomplete Parikh walk after 950 steps, including 158 resets, run finished after 36 ms. (steps per millisecond=26 ) properties (out of 35) seen :0 could not realise parikh vector
Incomplete Parikh walk after 440 steps, including 220 resets, run finished after 16 ms. (steps per millisecond=27 ) properties (out of 35) seen :0 could not realise parikh vector
Incomplete Parikh walk after 470 steps, including 235 resets, run finished after 17 ms. (steps per millisecond=27 ) properties (out of 35) seen :0 could not realise parikh vector
Support contains 1493 out of 1614 places. Attempting structural reductions.
Starting structural reductions, iteration 0 : 1614/1614 places, 3390/3390 transitions.
Ensure Unique test removed 10 places
Drop transitions removed 2 transitions
Trivial Post-agglo rules discarded 2 transitions
Performed 2 trivial Post agglomeration. Transition count delta: 2
Iterating post reduction 0 with 12 rules applied. Total rules applied 12 place count 1604 transition count 3388
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 1 with 2 rules applied. Total rules applied 14 place count 1602 transition count 3388
Performed 3 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 3 Pre rules applied. Total rules applied 14 place count 1602 transition count 3385
Deduced a syphon composed of 3 places in 3 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 2 with 6 rules applied. Total rules applied 20 place count 1599 transition count 3385
Applied a total of 20 rules in 361 ms. Remains 1599 /1614 variables (removed 15) and now considering 3385/3390 (removed 5) transitions.
[2022-05-18 00:55:04] [INFO ] Flow matrix only has 3376 transitions (discarded 9 similar events)
// Phase 1: matrix 3376 rows 1599 cols
[2022-05-18 00:55:04] [INFO ] Computed 182 place invariants in 105 ms
[2022-05-18 00:55:08] [INFO ] Dead Transitions using invariants and state equation in 4733 ms returned [2373, 2374, 2375, 2376, 2377, 2378, 2379, 2380, 2381, 2382, 2383, 2384, 2385, 2386, 2387, 2388, 2389, 2390, 2391, 2392, 2394, 2395, 2396, 2397, 2398, 2399, 2400, 2401, 2402, 2403, 2404, 2405, 2406, 2407, 2408, 2409, 2410, 2411, 2412, 2414, 2415, 2416, 2417, 2418, 2420, 2423, 2424, 2425, 2426, 2427, 2428, 2429, 2430, 2431, 2432, 2433, 2434, 2435, 2436, 2437, 2438, 2439, 2440, 2441, 2442, 2443, 2444, 2445, 2446, 2447, 2449, 2450, 2451, 2452, 2453, 2455, 2458, 2459, 2460, 2461, 2462, 2463, 2465, 2468, 2472, 2473, 2474, 2475, 2476, 2477, 2478, 2479, 2480, 2481, 2482, 2483, 2484, 2485, 2486, 2487, 2488, 2489, 2490, 2491, 2492, 2493, 2494, 2495, 2496, 2497, 2498, 2499, 2500, 2501, 2502, 2503, 2505, 2506, 2507, 2508, 2509, 2511, 2514, 2515, 2516, 2517, 2518, 2519, 2521, 2524, 2528, 2529, 2530, 2531, 2532, 2533, 2534, 2536, 2539, 2543, 2548, 2549, 2550, 2551, 2552, 2553, 2554, 2555, 2556, 2557, 2558, 2559, 2560, 2561, 2562, 2563, 2564, 2565, 2566, 2567, 2568, 2569, 2570, 2571, 2572, 2573, 2574, 2575, 2576, 2577, 2578, 2579, 2580, 2581, 2582, 2583, 2584, 2585, 2586, 2587, 2589, 2590, 2591, 2592, 2593, 2595, 2598, 2599, 2600, 2601, 2602, 2603, 2605, 2608, 2612, 2613, 2614, 2615, 2616, 2617, 2618, 2620, 2623, 2627, 2632, 2633, 2634, 2635, 2636, 2637, 2638, 2639, 2641, 2644, 2648, 2653, 2659, 2660, 2661, 2662, 2663, 2664, 2665, 2666, 2667, 2668, 2669, 2670, 2671, 2672, 2673, 2674, 2675, 2676, 2677, 2678, 2679, 2680, 2681, 2682, 2683, 2684, 2685, 2686, 2687, 2688, 2689, 2690, 2691, 2692, 2693, 2694, 2695, 2696, 2697, 2698, 2699, 2700, 2701, 2702, 2703, 2704, 2705, 2706, 2707, 2709, 2710, 2711, 2712, 2713, 2715, 2718, 2719, 2720, 2721, 2722, 2723, 2725, 2728, 2732, 2733, 2734, 2735, 2736, 2737, 2738, 2740, 2743, 2747, 2752, 2753, 2754, 2755, 2756, 2757, 2758, 2759, 2761, 2764, 2768, 2773, 2779, 2780, 2781, 2782, 2783, 2784, 2785, 2786, 2787, 2789, 2792, 2796, 2801, 2807, 2814, 2815, 2816, 2817, 2818, 2819, 2820, 2821, 2822, 2823, 2824, 2825, 2826, 2827, 2828, 2829, 2830, 2831, 2832, 2833, 2834, 2835, 2836, 2837, 2838, 2839, 2840, 2841, 2842, 2843, 2844, 2845, 2846, 2847, 2848, 2849, 2850, 2851, 2852, 2853, 2854, 2855, 2856, 2857, 2858, 2859, 2860, 2861, 2862, 2863, 2864, 2865, 2866, 2867, 2868, 2869, 2870, 2871, 2872, 2874, 2875, 2876, 2877, 2878, 2880, 2883, 2884, 2885, 2886, 2887, 2888, 2890, 2893, 2897, 2898, 2899, 2900, 2901, 2902, 2903, 2905, 2908, 2912, 2917, 2918, 2919, 2920, 2921, 2922, 2923, 2924, 2926, 2929, 2933, 2938, 2944, 2945, 2946, 2947, 2948, 2949, 2950, 2951, 2952, 2954, 2957, 2961, 2966, 2972, 2979, 2980, 2981, 2982, 2983, 2984, 2985, 2986, 2987, 2988, 2990, 2993, 2997, 3002, 3008, 3015, 3023, 3024, 3025, 3026, 3027, 3028, 3029, 3030, 3031, 3032, 3033, 3034, 3035, 3036, 3037, 3038, 3039, 3040, 3041, 3042, 3043, 3044, 3045, 3046, 3047, 3048, 3049, 3050, 3051, 3052, 3053, 3054, 3055, 3056, 3057, 3058, 3059, 3060, 3061, 3062, 3063, 3064, 3065, 3066, 3067, 3068, 3069, 3070, 3071, 3072, 3073, 3074, 3075, 3076, 3077, 3078, 3079, 3080, 3081, 3082, 3083, 3084, 3085, 3086, 3087, 3088, 3089, 3090, 3091, 3092, 3094, 3095, 3096, 3097, 3098, 3100, 3103, 3104, 3105, 3106, 3107, 3108, 3110, 3113, 3117, 3118, 3119, 3120, 3121, 3122, 3123, 3125, 3128, 3132, 3137, 3138, 3139, 3140, 3141, 3142, 3143, 3144, 3146, 3149, 3153, 3158, 3164, 3165, 3166, 3167, 3168, 3169, 3170, 3171, 3172, 3174, 3177, 3181, 3186, 3192, 3199, 3200, 3201, 3202, 3203, 3204, 3205, 3206, 3207, 3208, 3210, 3213, 3217, 3222, 3228, 3235, 3243, 3244, 3245, 3246, 3247, 3248, 3249, 3250, 3251, 3252, 3253, 3255, 3258, 3262, 3267, 3273, 3280, 3288, 3297, 3298, 3299, 3300, 3301, 3302, 3303, 3304, 3305, 3306, 3307, 3308, 3310, 3313, 3317, 3322, 3328, 3335, 3343, 3352, 3362]
Found 615 dead transitions using SMT.
Drop transitions removed 615 transitions
Dead transitions reduction (with SMT) triggered by suspicious arc values removed 615 transitions :[3362, 3352, 3343, 3335, 3328, 3322, 3317, 3313, 3310, 3308, 3307, 3306, 3305, 3304, 3303, 3302, 3301, 3300, 3299, 3298, 3297, 3288, 3280, 3273, 3267, 3262, 3258, 3255, 3253, 3252, 3251, 3250, 3249, 3248, 3247, 3246, 3245, 3244, 3243, 3235, 3228, 3222, 3217, 3213, 3210, 3208, 3207, 3206, 3205, 3204, 3203, 3202, 3201, 3200, 3199, 3192, 3186, 3181, 3177, 3174, 3172, 3171, 3170, 3169, 3168, 3167, 3166, 3165, 3164, 3158, 3153, 3149, 3146, 3144, 3143, 3142, 3141, 3140, 3139, 3138, 3137, 3132, 3128, 3125, 3123, 3122, 3121, 3120, 3119, 3118, 3117, 3113, 3110, 3108, 3107, 3106, 3105, 3104, 3103, 3100, 3098, 3097, 3096, 3095, 3094, 3092, 3091, 3090, 3089, 3088, 3087, 3086, 3085, 3084, 3083, 3082, 3081, 3080, 3079, 3078, 3077, 3076, 3075, 3074, 3073, 3072, 3071, 3070, 3069, 3068, 3067, 3066, 3065, 3064, 3063, 3062, 3061, 3060, 3059, 3058, 3057, 3056, 3055, 3054, 3053, 3052, 3051, 3050, 3049, 3048, 3047, 3046, 3045, 3044, 3043, 3042, 3041, 3040, 3039, 3038, 3037, 3036, 3035, 3034, 3033, 3032, 3031, 3030, 3029, 3028, 3027, 3026, 3025, 3024, 3023, 3015, 3008, 3002, 2997, 2993, 2990, 2988, 2987, 2986, 2985, 2984, 2983, 2982, 2981, 2980, 2979, 2972, 2966, 2961, 2957, 2954, 2952, 2951, 2950, 2949, 2948, 2947, 2946, 2945, 2944, 2938, 2933, 2929, 2926, 2924, 2923, 2922, 2921, 2920, 2919, 2918, 2917, 2912, 2908, 2905, 2903, 2902, 2901, 2900, 2899, 2898, 2897, 2893, 2890, 2888, 2887, 2886, 2885, 2884, 2883, 2880, 2878, 2877, 2876, 2875, 2874, 2872, 2871, 2870, 2869, 2868, 2867, 2866, 2865, 2864, 2863, 2862, 2861, 2860, 2859, 2858, 2857, 2856, 2855, 2854, 2853, 2852, 2851, 2850, 2849, 2848, 2847, 2846, 2845, 2844, 2843, 2842, 2841, 2840, 2839, 2838, 2837, 2836, 2835, 2834, 2833, 2832, 2831, 2830, 2829, 2828, 2827, 2826, 2825, 2824, 2823, 2822, 2821, 2820, 2819, 2818, 2817, 2816, 2815, 2814, 2807, 2801, 2796, 2792, 2789, 2787, 2786, 2785, 2784, 2783, 2782, 2781, 2780, 2779, 2773, 2768, 2764, 2761, 2759, 2758, 2757, 2756, 2755, 2754, 2753, 2752, 2747, 2743, 2740, 2738, 2737, 2736, 2735, 2734, 2733, 2732, 2728, 2725, 2723, 2722, 2721, 2720, 2719, 2718, 2715, 2713, 2712, 2711, 2710, 2709, 2707, 2706, 2705, 2704, 2703, 2702, 2701, 2700, 2699, 2698, 2697, 2696, 2695, 2694, 2693, 2692, 2691, 2690, 2689, 2688, 2687, 2686, 2685, 2684, 2683, 2682, 2681, 2680, 2679, 2678, 2677, 2676, 2675, 2674, 2673, 2672, 2671, 2670, 2669, 2668, 2667, 2666, 2665, 2664, 2663, 2662, 2661, 2660, 2659, 2653, 2648, 2644, 2641, 2639, 2638, 2637, 2636, 2635, 2634, 2633, 2632, 2627, 2623, 2620, 2618, 2617, 2616, 2615, 2614, 2613, 2612, 2608, 2605, 2603, 2602, 2601, 2600, 2599, 2598, 2595, 2593, 2592, 2591, 2590, 2589, 2587, 2586, 2585, 2584, 2583, 2582, 2581, 2580, 2579, 2578, 2577, 2576, 2575, 2574, 2573, 2572, 2571, 2570, 2569, 2568, 2567, 2566, 2565, 2564, 2563, 2562, 2561, 2560, 2559, 2558, 2557, 2556, 2555, 2554, 2553, 2552, 2551, 2550, 2549, 2548, 2543, 2539, 2536, 2534, 2533, 2532, 2531, 2530, 2529, 2528, 2524, 2521, 2519, 2518, 2517, 2516, 2515, 2514, 2511, 2509, 2508, 2507, 2506, 2505, 2503, 2502, 2501, 2500, 2499, 2498, 2497, 2496, 2495, 2494, 2493, 2492, 2491, 2490, 2489, 2488, 2487, 2486, 2485, 2484, 2483, 2482, 2481, 2480, 2479, 2478, 2477, 2476, 2475, 2474, 2473, 2472, 2468, 2465, 2463, 2462, 2461, 2460, 2459, 2458, 2455, 2453, 2452, 2451, 2450, 2449, 2447, 2446, 2445, 2444, 2443, 2442, 2441, 2440, 2439, 2438, 2437, 2436, 2435, 2434, 2433, 2432, 2431, 2430, 2429, 2428, 2427, 2426, 2425, 2424, 2423, 2420, 2418, 2417, 2416, 2415, 2414, 2412, 2411, 2410, 2409, 2408, 2407, 2406, 2405, 2404, 2403, 2402, 2401, 2400, 2399, 2398, 2397, 2396, 2395, 2394, 2392, 2391, 2390, 2389, 2388, 2387, 2386, 2385, 2384, 2383, 2382, 2381, 2380, 2379, 2378, 2377, 2376, 2375, 2374, 2373]
Starting structural reductions, iteration 1 : 1599/1614 places, 2770/3390 transitions.
Applied a total of 0 rules in 98 ms. Remains 1599 /1599 variables (removed 0) and now considering 2770/2770 (removed 0) transitions.
Finished structural reductions, in 2 iterations. Remains : 1599/1614 places, 2770/3390 transitions.
[2022-05-18 00:55:09] [INFO ] Flatten gal took : 337 ms
[2022-05-18 00:55:09] [INFO ] Flatten gal took : 226 ms
[2022-05-18 00:55:09] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality7531866417247717108.gal : 36 ms
[2022-05-18 00:55:09] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality3194722177748255645.prop : 4 ms
Invoking ITS tools like this :CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-reach-linux64, --gc-threshold, 2000000, --quiet, -i, /tmp/ReachabilityCardinality7531866417247717108.gal, -t, CGAL, -reachable-file, /tmp/ReachabilityCardinality3194722177748255645.prop, --nowitness, --gen-order, FOLLOW], workingDir=/home/mcc/execution]

its-reach command run as :

/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-reach-linux64 --gc-threshold 2000000 --quiet -i /tmp/ReachabilityCardinality7531866417247717108.gal -t CGAL -reachable-file /tmp/ReachabilityCardinality3194722177748255645.prop --nowitness --gen-order FOLLOW
Loading property file /tmp/ReachabilityCardinality3194722177748255645.prop.
SDD proceeding with computation,35 properties remain. new max is 4
SDD size :1 after 2
SDD proceeding with computation,35 properties remain. new max is 8
SDD size :2 after 5
Invariant property smplace_32 does not hold.
Invariant property smplace_31 does not hold.
Invariant property smplace_27 does not hold.
Invariant property smplace_26 does not hold.
Invariant property smplace_15 does not hold.
SDD proceeding with computation,30 properties remain. new max is 8
SDD size :5 after 11
SDD proceeding with computation,30 properties remain. new max is 16
SDD size :11 after 12
Invariant property smplace_45 does not hold.
Invariant property smplace_44 does not hold.
Invariant property smplace_4 does not hold.
SDD proceeding with computation,27 properties remain. new max is 16
SDD size :12 after 20
Invariant property smplace_22 does not hold.
Invariant property smplace_21 does not hold.
Invariant property smplace_17 does not hold.
Invariant property smplace_14 does not hold.
Invariant property smplace_13 does not hold.
Invariant property smplace_12 does not hold.
Invariant property smplace_10 does not hold.
Invariant property smplace_3 does not hold.
Invariant property smplace_0 does not hold.
SDD proceeding with computation,18 properties remain. new max is 16
SDD size :20 after 25
Invariant property smplace_46 does not hold.
Invariant property smplace_16 does not hold.
SDD proceeding with computation,16 properties remain. new max is 16
SDD size :25 after 27
SDD proceeding with computation,16 properties remain. new max is 32
SDD size :27 after 28
SDD proceeding with computation,16 properties remain. new max is 64
SDD size :28 after 36
SDD proceeding with computation,16 properties remain. new max is 128
SDD size :36 after 44
SDD proceeding with computation,16 properties remain. new max is 256
SDD size :44 after 60
Invariant property smplace_8 does not hold.
Invariant property smplace_7 does not hold.
Invariant property smplace_2 does not hold.
Invariant property smplace_1 does not hold.
SDD proceeding with computation,12 properties remain. new max is 256
SDD size :60 after 85
SDD proceeding with computation,12 properties remain. new max is 512
SDD size :85 after 91
Invariant property smplace_41 does not hold.
SDD proceeding with computation,11 properties remain. new max is 512
SDD size :91 after 116
SDD proceeding with computation,11 properties remain. new max is 1024
SDD size :116 after 144
SDD proceeding with computation,11 properties remain. new max is 2048
SDD size :144 after 185
Detected timeout of ITS tools.
[2022-05-18 00:55:24] [INFO ] Flatten gal took : 166 ms
[2022-05-18 00:55:24] [INFO ] Applying decomposition
[2022-05-18 00:55:25] [INFO ] Flatten gal took : 156 ms
Converted graph to binary with : CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202104292328/bin/convert-linux64, -i, /tmp/graph7120764997489327039.txt, -o, /tmp/graph7120764997489327039.bin, -w, /tmp/graph7120764997489327039.weights], workingDir=null]
Built communities with : CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202104292328/bin/louvain-linux64, /tmp/graph7120764997489327039.bin, -l, -1, -v, -w, /tmp/graph7120764997489327039.weights, -q, 0, -e, 0.001], workingDir=null]
[2022-05-18 00:55:25] [INFO ] Decomposing Gal with order
[2022-05-18 00:55:25] [INFO ] Rewriting arrays to variables to allow decomposition.
[2022-05-18 00:55:26] [INFO ] Removed a total of 4873 redundant transitions.
[2022-05-18 00:55:26] [INFO ] Flatten gal took : 729 ms
[2022-05-18 00:55:26] [INFO ] Fuse similar labels procedure discarded/fused a total of 810 labels/synchronizations in 105 ms.
[2022-05-18 00:55:27] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality9149445336130007228.gal : 65 ms
[2022-05-18 00:55:27] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality8808201053938297299.prop : 0 ms
Invoking ITS tools like this :CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-reach-linux64, --gc-threshold, 2000000, --quiet, -i, /tmp/ReachabilityCardinality9149445336130007228.gal, -t, CGAL, -reachable-file, /tmp/ReachabilityCardinality8808201053938297299.prop, --nowitness, --gen-order, FOLLOW], workingDir=/home/mcc/execution]

its-reach command run as :

/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-reach-linux64 --gc-threshold 2000000 --quiet -i /tmp/ReachabilityCardinality9149445336130007228.gal -t CGAL -reachable-file /tmp/ReachabilityCardinality8808201053938297299.prop --nowitness --gen-order FOLLOW
Loading property file /tmp/ReachabilityCardinality8808201053938297299.prop.
SDD proceeding with computation,11 properties remain. new max is 4
SDD size :1 after 2
SDD proceeding with computation,11 properties remain. new max is 8
SDD size :2 after 6
Invariant property smplace_30 does not hold.
SDD proceeding with computation,10 properties remain. new max is 8
SDD size :6 after 12
SDD proceeding with computation,10 properties remain. new max is 16
SDD size :12 after 14
Invariant property smplace_29 does not hold.
SDD proceeding with computation,9 properties remain. new max is 16
SDD size :14 after 24
SDD proceeding with computation,9 properties remain. new max is 32
SDD size :24 after 26
SDD proceeding with computation,9 properties remain. new max is 64
SDD size :26 after 28
SDD proceeding with computation,9 properties remain. new max is 128
SDD size :28 after 30
Invariant property smplace_28 does not hold.
SDD proceeding with computation,8 properties remain. new max is 128
SDD size :30 after 48
SDD proceeding with computation,8 properties remain. new max is 256
SDD size :48 after 50
SDD proceeding with computation,8 properties remain. new max is 512
SDD size :50 after 52
SDD proceeding with computation,8 properties remain. new max is 1024
SDD size :52 after 56
SDD proceeding with computation,8 properties remain. new max is 2048
SDD size :56 after 62
SDD proceeding with computation,8 properties remain. new max is 4096
SDD size :62 after 105
SDD proceeding with computation,8 properties remain. new max is 8192
SDD size :105 after 190
SDD proceeding with computation,8 properties remain. new max is 16384
SDD size :190 after 231
Detected timeout of ITS tools.
Built C files in :
/tmp/ltsmin8116110536740743055
[2022-05-18 00:55:42] [INFO ] Built C files in 80ms conformant to PINS (ltsmin variant)in folder :/tmp/ltsmin8116110536740743055
Running compilation step : CommandLine [args=[gcc, -c, -I/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202104292328/bin/include/, -I., -std=c99, -fPIC, -O2, model.c], workingDir=/tmp/ltsmin8116110536740743055]
WARNING : LTS min runner thread failed on error :java.lang.RuntimeException: Compilation or link of executable timed out.java.util.concurrent.TimeoutException: Subprocess running CommandLine [args=[gcc, -c, -I/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202104292328/bin/include/, -I., -std=c99, -fPIC, -O2, model.c], workingDir=/tmp/ltsmin8116110536740743055] killed by timeout after 1 SECONDS
java.lang.RuntimeException: Compilation or link of executable timed out.java.util.concurrent.TimeoutException: Subprocess running CommandLine [args=[gcc, -c, -I/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202104292328/bin/include/, -I., -std=c99, -fPIC, -O2, model.c], workingDir=/tmp/ltsmin8116110536740743055] killed by timeout after 1 SECONDS
at fr.lip6.move.gal.application.LTSminRunner$1.run(LTSminRunner.java:79)
at java.base/java.lang.Thread.run(Thread.java:834)
Finished random walk after 1616 steps, including 116 resets, run visited all 8 properties in 23 ms. (steps per millisecond=70 )
Able to resolve query StableMarking after proving 48 properties.
FORMULA StableMarking FALSE TECHNIQUES RANDOM_WALK DECISION_DIAGRAMS COLLATERAL_PROCESSING TOPOLOGICAL USE_NUPN

BK_STOP 1652835344761

--------------------
content from stderr:

+ export BINDIR=/home/mcc/BenchKit/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ StableMarking = StateSpace ]]
+ /home/mcc/BenchKit/bin//..//runeclipse.sh /home/mcc/execution StableMarking -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//..//greatspn/ -order META -manyOrder -smt -timeout 1800
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
++ cut -d . -f 9
++ ls /home/mcc/BenchKit/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202104292328.jar
+ VERSION=0
+ echo 'Running Version 0'
+ /home/mcc/BenchKit/bin//..//itstools/its-tools -data /home/mcc/execution/workspace -pnfolder /home/mcc/execution -examination StableMarking -spotpath /home/mcc/BenchKit/bin//..//ltlfilt -z3path /home/mcc/BenchKit/bin//..//z3/bin/z3 -yices2path /home/mcc/BenchKit/bin//..//yices/bin/yices -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//..//greatspn/ -order META -manyOrder -smt -timeout 1800 -vmargs -Dosgi.locking=none -Declipse.stateSaveDelayInterval=-1 -Dosgi.configuration.area=/tmp/.eclipse -Xss128m -Xms40m -Xmx16000m

Sequence of Actions to be Executed by the VM

This is useful if one wants to reexecute the tool in the VM from the submitted image disk.

set -x
# this is for BenchKit: configuration of major elements for the test
export BK_INPUT="PolyORBNT-COL-S10J80"
export BK_EXAMINATION="StableMarking"
export BK_TOOL="gold2021"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="1800"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"

# this is specific to your benchmark or test

export BIN_DIR="$HOME/BenchKit/bin"

# remove the execution directoty if it exists (to avoid increse of .vmdk images)
if [ -d execution ] ; then
rm -rf execution
fi

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-4028"
echo " Executing tool gold2021"
echo " Input is PolyORBNT-COL-S10J80, examination is StableMarking"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r180-tall-165277028000503"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/PolyORBNT-COL-S10J80.tgz
mv PolyORBNT-COL-S10J80 execution
cd execution
if [ "StableMarking" = "ReachabilityDeadlock" ] || [ "StableMarking" = "UpperBounds" ] || [ "StableMarking" = "QuasiLiveness" ] || [ "StableMarking" = "StableMarking" ] || [ "StableMarking" = "Liveness" ] || [ "StableMarking" = "OneSafe" ] || [ "StableMarking" = "StateSpace" ]; then
rm -f GenericPropertiesVerdict.xml
fi
pwd
ls -lh

echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "StableMarking" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "StableMarking" != "StateSpace" ] ; then
echo "The expected result is a vector of booleans"
echo BOOL_VECTOR
else
echo "no data necessary for post analysis"
fi
echo
if [ -f "StableMarking.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property StableMarking.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "StableMarking.xml" ] ; then # for cunf (txt files deleted;-)
echo echo "here is the order used to build the result vector(from xml file)"
for x in $(grep '' StableMarking.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "StableMarking" = "ReachabilityDeadlock" ] || [ "StableMarking" = "QuasiLiveness" ] || [ "StableMarking" = "StableMarking" ] || [ "StableMarking" = "Liveness" ] || [ "StableMarking" = "OneSafe" ] ; then
echo "FORMULA_NAME StableMarking"
fi
echo
echo "=== Now, execution of the tool begins"
echo
echo -n "BK_START "
date -u +%s%3N
echo
timeout -s 9 $BK_TIME_CONFINEMENT bash -c "/home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n \"BK_STOP \" ; date -u +%s%3N"
if [ $? -eq 137 ] ; then
echo
echo "BK_TIME_CONFINEMENT_REACHED"
fi
echo
echo "--------------------"
echo "content from stderr:"
echo
cat STDERR ;